CN106169238A - Infrared remote-control device is realized based on android system - Google Patents

Abstract

The invention discloses and realize infrared remote-control device based on android system, including a processor and an infrared-emitting diode, this processor includes multiple pin, this pin is connected with this infrared-emitting diode, this processor is for when receiving a test instruction, according to multiple predetermined coded systems, successively pin is placed in high level or low level respectively, thus produce and those coded systems the most a series of coding infrared remote-controlled signal, and sent the coding infrared remote-controlled signal of this series continuously to this electronic installation by this infrared-emitting diode, this series coding infrared remote-controlled signal includes that controlling this electronic installation performs the remote signal of multiple different operatings.The infrared remote-control device of the present invention can be advantageously implemented the automatization of electronic installation infrared property test.

Description

Infrared remote control device based on Android system

Technical Field

The invention relates to a remote control device, in particular to an infrared remote control device based on an Android system.

Background

In the related art, as the handheld mobile devices are increasingly diversified, the recording/storing and transmitting technologies of information are further developed, and the transmission modes are roughly divided into two types, one is wired transmission, and the devices are mainly connected by using transmission media such as CABLE (CABLE) and the like, so as to achieve the purpose of transmitting and exchanging information, such as data lines in the handheld devices, and the transmission has reliable properties, but the defect is that a special CABLE needs to be provided; the other transmission method is wireless transmission, such as common infrared remote control, which mainly uses infrared ray (IrDA) as a transmission medium to transmit and exchange information, and since the transmission protocol in wireless transmission has higher reliability, any handheld device with the protocol can be wirelessly connected, so the transmission method has higher use value, and in recent years, the wireless transmission method has been applied to various electronic goods, such as mobile phones/MP 3, and the like.

Since the Android system popular in recent years is an open source code operating system based on Linux, Linux not only optimizes an operating interface, simplifies the simplicity of operation, but also improves the efficiency, and is an excellent operating system kernel. The Android operating system is actually a change and extension of the Linux operating system, the kernel is basically the kernel of Linux, and the difference is that great improvement and enhancement are specially performed on the main characteristics of the mobile phone and the mobile device in user space.

The Android system can be used for remotely controlling the small sound box, but a user generally places the mobile phone at different positions instead of being fixed, so that the infrared receiving efficiency is reduced.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide an infrared remote control device implemented based on an Android system, which solves the technical problem of a decrease in infrared receiving efficiency caused by a user placing a mobile phone at different positions.

In order to solve the technical problems, the technical scheme adopted by the invention is to realize an infrared remote control device based on an Android system, and the infrared remote control device comprises a sensing device body, a main sensing device base and a plurality of detachable sub sensing device bases, wherein the sensing device body is detachably arranged on the main sensing device base, and the sub sensing device bases are arranged at different positions. The induction device body is arranged in the mobile phone, and the total induction device base is arranged on the small-sized sound box.

The total sensing device base comprises an optical receiving assembly, an infrared transmitting assembly, a distance measuring assembly and an infrared optical processing assembly. And laser emission assemblies are respectively arranged on the sub-sensing device bases.

The optical receiving component comprises a color separation sheet, a plano-concave lens with a small hole at the center and a hyperboloid convex lens symmetrically arranged on an optical axis with the plano-concave lens, wherein the color separation sheet is positioned on one side of the plano-concave lens, which is far away from the hyperboloid convex lens; infrared ray and/or laser that optical receiving component received converge into the parallel light after the reflection of speculum and quick slope mirror, parallel light is gone into plano-concave lens and is kept away from one side of color separation piece, jets into the hyperboloid convex mirror through plano-concave lens refraction to the aperture that passes plano-concave lens center under the reflection of hyperboloid convex mirror jets into the color separation piece, and the infrared spectrum of infrared ray sees through the color separation piece gets into infrared optical processing subassembly, and laser process the color separation piece reflection gets into distance measurement subassembly.

Laser emission subassembly includes rotary drive mechanism, integrated circuit and 532nm laser instrument, the laser instrument includes laser head, laser controller and laser trigger, the integrated silicon PIN photodiode of laser head can respond to transmission dominant wave and direct output dominant wave signal pulse, laser head passes through the cable and connects the laser controller, the laser controller provides laser power, control by temperature change and trigger control, laser trigger locates the induction system body with divide the junction of induction system base, work as the induction system body install in during total induction system base, laser trigger sends trigger signal, triggers laser control panel starts, triggers laser head interval emission laser.

The rotary driving mechanism comprises a rotating shaft, a supporting frame, a driving motor, an enveloping worm, a worm wheel turntable and a protective cover, the driving motor comprises a first driving motor and a second driving motor, the first driving motor is arranged at one end of the enveloping worm and drives the enveloping worm to rotate, the tooth surface of the enveloping worm is meshed with the tooth surface of the worm wheel turntable, the first driving motor drives the enveloping worm to rotate around the central shaft of the enveloping worm, the enveloping worm drives the worm wheel turntable to rotate, the rotating shaft penetrates through and fixes the laser, two ends of the rotating shaft are arranged on the supporting frame, the support frame is installed in the upper surface of worm wheel carousel, and first driving motor rotates the enveloping worm, and the enveloping worm drives worm wheel carousel and support frame, laser instrument and rotates 360 degrees rotations, and second driving motor connects the axis of rotation for the laser instrument can revolve the axis of rotation and rotate, thereby adjusts the laser direction of laser machine transmission.

Divide the starting button that is equipped with the start laser instrument on the induction system base respectively, when the induction system body was placed on dividing the induction system base, the starting button was pressed, and the laser instrument starts.

The distance measurement assembly comprises a collimating mirror, a narrow-band optical filter, a signal shaping circuit, a pulse signal detector and a time measurement chip, laser reflected by the color separation sheet sequentially passes through the collimating mirror, the narrow-band optical filter, the pulse signal detector and the signal shaping circuit, and the collimating mirror and the narrow-band optical filter perform filtering processing on a laser spectrum to reduce background noise. When the pulse signal detector corresponds to a target photon, the pulse signal detector outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit and then output to the time measurement chip, the time is accurately measured by timing the occurrence time of the pulse signal which is used for emitting laser at regular intervals, the flight time of the laser from the induction device body to the total induction device base is finally measured, the distance between the induction device body and the total induction device base is further obtained, the obtained data of the distance is transmitted to the infrared emission assembly, and the infrared emission assembly adjusts the focal length according to the distance between the induction device body and the total induction device base.

The infrared emission assembly comprises a continuous zooming structure and an infrared emission diode, the continuous zooming structure comprises a cylindrical shell, a zoom group lens, a fine adjustment group lens, a compensation group lens, a zoom group lens frame, a compensation group lens frame, a fine adjustment group lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacing ring, and two groups of four symmetrical cam grooves, namely a first cam groove and a second cam groove, are arranged at the middle section of the cylindrical shell;

the slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is the focal length of the variable magnification group, y and x are the lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively; the zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings; the motor provides lens motion driving force and is connected with the zoom group lensThe frame drives the zoom lens frame to move; the inner surface of the cylindrical shell and the contact surface of the fine adjustment lens frame are provided with fine adjustment gear rings along the circumferential direction, the fine adjustment gear rings are adhered to the fine adjustment lens frame, the fine adjustment gear rings can rotate relative to the cylindrical shell under the driving of a motor, and the fine adjustment gear rings can adjust the distance between the fine adjustment lens and other lenses.

The infrared emitting diodes are sequentially arranged and arranged on one side of the fine adjustment group lens far away from the compensation group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body and the base of the total induction device; the infrared optical processing assembly comprises an infrared receiving tube, when a person is positioned in front of the induction device body, infrared rays emitted by the infrared emitting assembly are shielded by the human body and then reflected to the optical receiving assembly, and the infrared receiving tube receives infrared spectra and then outputs telecom mini-type sound boxes to play music.

Preferably, the tooth surface equation of the enveloping worm is

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dgrinding wheel for machining enveloping wormTooth profile angle r_dFor working the radius of the grinding wheel enveloping the worm, S_aThe top width of the grinding wheel for processing the enveloping worm is β the angle of inclination of the grinding wheel for processing the enveloping worm,is the turning angle of the worm screw,

there are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe included angle theta; obtaining a set of tooth surface equations satisfying enveloping worm in the range of 170-190 DEGValue ofWill obtainSubstitution intoIn the formula One contact point on the enveloping worm corresponding to the sameThe value of u is different in the range of full tooth height, and different theta values can be contacted by successive conjugate conditional equations, so that a plurality of contact points can be obtainedConnecting the contact points to form a contact line, and finally corresponding to different contact pointsThe values of the different contact lines are determined, which form the helicoid of the worm.

Preferably, an enveloping worm with the center distance of 75mm, the transmission ratio of 45 and the number of worm heads of 1 is fitted with a tooth surface equation of the enveloping worm, and key geometric parameters and dimensions of the enveloping worm are obtained after optimization: the center distance is 75mm, the transmission ratio is 45, the number of worm heads is 1, the diameter of a worm reference circle is 28.36mm, the tooth crest height is 2.571mm, the tooth root height is 2.846mm, the full tooth height is 5.01mm, the tooth crest gap is 0.716mm, the radius of a worm tooth root circle is 21.605mm, the radius of a worm tooth crest arc is 31.786m, the radius of a worm tooth root arc is 65.779mm, the lead angle of a worm throat reference circle is 6.32 degrees, the tooth pitch angle is 9 degrees, the diameter of a main base circle is 48.69mm, the number of teeth of a worm wheel surrounding is 6.5, the half working angle of the worm is 17.311 degrees, the working length of the worm is 37.529.

Preferably, the variable power lens group comprises a front variable power lens and a rear variable power lens, the front variable power lens is an orthodontic convex lens, the rear variable power lens is a biconcave lens, the front variable power lens is fixed at the foremost end of the cylindrical shell, and the rear variable power lens is fixedly connected with the second cam groove through a guide pin after being installed on the lens frame.

Preferably, the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being installed on the lens frame.

Preferably, the fine adjustment lens is an orthodontic convex lens, and the fine adjustment lens frame clamps the fine adjustment lens and is arranged at one end of the cylindrical shell.

The invention has the beneficial effects that:

1. the user can adjust the position of branch induction system base at will to place the induction system body in not co-altitude, different positions, in order to adapt to different demands.

2. The optical receiving assembly is used for receiving laser and infrared rays simultaneously, the laser receiving device and the infrared receiving device are integrated, the size of the sensing device is greatly reduced, the sensing device is suitable for the bases of the general sensing devices with different specifications, the structure is simple, and the maintenance work of workers is facilitated.

3. After an enveloping worm model of a rotary driving structure is established, the model is optimized, and finally the enveloping worm has excellent lubricating performance and contact performance, so that the friction of the enveloping worm is reduced, the abrasion is reduced, the temperature rise is reduced, the gluing resistance of the enveloping worm is increased, and the bearing capacity of the enveloping worm is improved. Moreover, the contact range between the tooth surface of the enveloping worm and the tooth surface of the worm wheel turntable is reasonable, so that the service life of the worm wheel turntable is prolonged.

4. The continuous zooming structure can ensure that the optical system can stably run in the whole zooming process while realizing quadruple infrared continuous zooming, and can not generate larger pressure on the cam, abrade the cam curve and influence the precision of the optical system.

5. The invention has high success rate of identifying people.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.

FIG. 1 is a schematic structural view of the main body and the base of the total induction device of the present invention.

Fig. 2 is a schematic structural diagram of the optical receiving module of the present invention.

Fig. 3 is a schematic structural diagram of an enveloping worm and a worm wheel turntable in the slewing drive mechanism of the invention.

Fig. 4 is a schematic view of the structure of the distance measuring unit of the present invention.

Fig. 5 is a schematic structural diagram of an infrared remote control device implemented based on an Android system according to the present invention.

Detailed Description

The invention is further described with reference to the following examples.

Example one

The device comprises a sensing device body 1, a main sensing device base 5 and a plurality of detachable sub sensing device bases, wherein as shown in figure 1, the sensing device body 1 is detachably arranged on the main sensing device base 5, and the sub sensing device bases are arranged at different positions, so that the use by a user is facilitated. The total sensing device base 5 comprises an optical receiving component, an infrared emitting component 22, a distance measuring component 13 and an infrared optical processing component 12. And laser emission assemblies 6 are respectively arranged on the sub-sensing device bases. The induction device body 1 is arranged in the mobile phone, and the total induction device base 5 is arranged on the small-sized sound box.

As shown in fig. 2, the optical receiving component can receive laser light and infrared light simultaneously, or receive laser light or infrared light separately. The optical receiving component comprises a color separation sheet 7, a plano-concave lens 8 with a small hole at the center and a hyperboloid convex lens 9 which is symmetrically arranged on an optical axis with the plano-concave lens 8, wherein the color separation sheet 7 is positioned on one side of the plano-concave lens 8 far away from the hyperboloid convex lens. Infrared rays and/or laser received by the optical receiving assembly are reflected by the reflecting mirror 11 and the rapid tilting mirror 10 and then converged into parallel light, the parallel light is emitted into one side of the plano-concave lens 8, which is far away from the color separation sheet 7, is refracted by the plano-concave lens 8 and is emitted into the hyperboloid convex mirror, and the parallel light passes through a small hole in the center of the plano-concave lens 8 and is emitted into the color separation sheet 7 under the reflection of the hyperboloid convex mirror. The infrared spectrum of the infrared ray penetrates through the color separation sheet 7 to enter the infrared optical processing component 12, and the laser enters the distance measuring component 13 after being reflected by the color separation sheet 7. The optical receiving assembly is used for receiving laser and infrared rays simultaneously, the laser receiving device and the infrared receiving device are integrated, the size of the sensing device is greatly reduced, the sensing device is suitable for the total sensing device bases 5 with different specifications, the structure is simple, and the maintenance work of workers is facilitated.

The laser emitting assembly 6 comprises a rotary drive mechanism 14, an integrated circuit and a 532nm laser. The laser can be triggered to emit laser by an external trigger signal. The laser comprises a laser head, a laser controller and a laser trigger. The laser head is integrated with a silicon PIN photodiode, and can inductively emit a main wave and directly output a main wave electric signal pulse. The laser head is connected with the laser controller through a cable, and the laser controller provides a laser power supply, temperature control and trigger control. The laser trigger is arranged at the joint of the induction device body 1 and the sub-induction device base. When the sensing device body 1 is arranged on the main sensing device base 5, the laser trigger sends out a trigger signal to trigger the laser control panel to start, and the laser head is triggered to emit laser at intervals.

As shown in fig. 3, the swing driving mechanism 14 includes a rotating shaft, a supporting frame, a driving motor, an enveloping worm 16, a worm wheel turntable 17 and a protective cover. The driving motors include a first driving motor 15 and a second driving motor. The first driving motor 15 is mounted at one end of the enveloping worm 16 and drives the enveloping worm 16 to rotate. The tooth surface of the enveloping worm 16 is meshed with the tooth surface of the worm wheel turntable 17, the first driving motor 15 drives the enveloping worm 16 to rotate around the central shaft of the enveloping worm, and the enveloping worm 16 drives the worm wheel turntable 17 to rotate. The axis of rotation passes and fixes the laser instrument, the support frame is located at the both ends of axis of rotation, the support frame is installed in the upper surface of worm wheel carousel 17, and first driving motor 15 rotates envelope worm 16, and envelope worm 16 drives worm wheel carousel 17 and support frame, laser instrument and rotates 360 degrees rotations. The second driving motor is connected with the rotating shaft, so that the laser can rotate around the rotating shaft, and the laser direction emitted by the laser is adjusted. In this embodiment, a beam expanding and collimating lens is integrated inside the laser, so as to provide high-parallelism and low-divergence laser.

The tooth surface equation of the enveloping worm 16 is

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dfor working the angle of profile of the grinding wheel, r, of enveloping worm 16_dFor machining the grinding wheel radius of enveloping worm 16, S_aFor machining the width of the grinding wheel tip of the enveloping worm 16, β is the grinding wheel inclination angle for machining the enveloping worm 16,the angle of rotation of the worm.

There are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe angle theta.

In addition toSelecting one of the working areasThe value of u is then selected over a range of full tooth height values and the variable θ is derived from the flank equation of enveloping worm 16. Newton's iterative solution is performed on the tooth surface equation of enveloping worm 16: as can be judged from the actual conditions of machining, the value theta satisfying the tooth surface equation of the enveloping worm 16 is in the vicinity of 180 DEG, so that a set of tooth surface equations satisfying the enveloping worm 16 is obtained in the range of 170 DEG to 190 DEGValue ofWill obtainSubstitution intoIn the formula A point of contact on the enveloping worm 16 is obtained. Correspond to the same oneThe value of u is different in the range of full tooth height, different theta values can be contacted by successive conjugate condition equations, so that a plurality of contact points can be obtained, and the contact points are connected to form a contact line. Finally corresponding to differentThe values of the different contact lines are determined, which form the helicoid of the worm.

The failure modes of the enveloping worm 16 include both bulk failure and flank failure, and the bulk failure of the enveloping worm 16 is often due to severe shock or short term overload experienced during the drive, or relatively severe load concentrations along the line of contact. Tooth surface failures of the enveloping worm 16 include contact fatigue pitting, gluing, galling, breaking, and the like. The integral failure and the tooth surface failure of the enveloping worm 16 are closely related to the contact performance and the lubricating performance of the enveloping worm 16, so the performance of the enveloping worm 16 is triggered and evaluated from the contact performance and the lubricating performance of the enveloping worm 16.

The excellent lubricating property can reduce friction, reduce abrasion, reduce temperature rise, increase the gluing resistance of the enveloping worm 16 and improve the bearing capacity of the enveloping worm 16, thereby achieving the effect of prolonging the service life of the enveloping worm. Excellent lubricating performance is obtained, which is essentially to establish a lubricating oil film with a certain thickness between the worm and the worm wheel tooth surfaces, ensuring that the tooth surfaces can still be in a liquid lubricating environment or at least work in a semi-liquid lubricating environment under a great pressure.

Evaluation of the lubricating properties of enveloping worm 16: and (4) setting an oil film thickness geometric coefficient according to an elastic fluid dynamic pressure lubrication theory and a Darsen formula to evaluate the oil film thickness.

k_h＝v_n ^0.7/(K_12N ^0.43)

v_nIs the relative entrainment velocity, v_nCalculated by the following formulaWherein (v)₁)_o1And (v)₂)_o1The speed of the enveloping worm 16 and the worm wheel turntable 17 at the meshing point, (N)_o1Is the normal vector at any point on the instantaneous contact line of enveloping worm 16, | N | (N)_ξ ²+N_η ²)^0.5。

Further, since the oil film thickness at the roots of the meshing-end worm is the smallest, the oil film thickness at the roots of the meshing-end worm is selected to evaluate the performance of the enveloping worm 16.

The excellent contact performance means that the distribution of the contact lines on the enveloping worm 16 cannot be too wide or too narrow, and when the distribution of the contact lines cannot be too wide or too narrow. When the contact lines are distributed too widely, the contact lines at the working initial angles of the enveloping worm 16 are positioned outside the tooth surfaces of the enveloping worm 16, which shows that the number of meshing teeth between the enveloping worm 16 and the worm wheel turntable 17 is less. Conversely, when the contact lines are distributed too narrowly, the contact lines tend to be concentrated on the central symmetry plane of the worm wheel turntable 17, which results in the reduction of the strength of the tooth surface of the worm wheel turntable 17.

Evaluation of contact performance of enveloping worm 16: the contact performance evaluation value f (x) | | z is established by taking the contact point of the primary contact line corresponding to the working initial angle on the reference circle of the worm wheel turntable 17 as an object₁|-b₂/2|, wherein | z₁L is the distance from the specific primary contact point to the central symmetry plane of the worm wheel turntable 17, b₂The worm wheel turntable 17 has the width of teeth.

And optimizing a tooth surface equation of the enveloping worm 16 by using optimization software to ensure that the geometrical coefficient of the thickness of the oil film at the tooth root of the worm at the meshing end is maximum and the contact performance evaluation value is minimum.

After the enveloping worm 16 model of the rotary driving structure is established, the model is optimized, and finally the enveloping worm 16 has excellent lubricating performance and contact performance, so that the friction of the enveloping worm 16 is reduced, the abrasion is reduced, the temperature rise is reduced, the gluing resistance of the enveloping worm 16 is increased, and the bearing capacity of the enveloping worm 16 is improved. Moreover, the contact range between the tooth surface of the enveloping worm 16 and the tooth surface of the worm wheel turntable 17 is reasonable, thereby prolonging the service life of the enveloping worm.

Taking the tooth surface equation of the enveloping worm 16 with the center distance of 75mm, the transmission ratio of 45 and the number of worm heads of 1, fitting the enveloping worm 16, and obtaining the key geometric parameters and the size of the enveloping worm 16 after optimization: the center distance is 75mm, the transmission ratio is 45, the number of worm heads is 1, the diameter of a worm reference circle is 28.36mm, the tooth crest height is 2.571mm, the tooth root height is 2.846mm, the full tooth height is 5.01mm, the tooth crest gap is 0.716mm, the radius of a worm tooth root circle is 21.605mm, the radius of a worm tooth crest arc is 31.786m, the radius of a worm tooth root arc is 65.779mm, the lead angle of a worm throat reference circle is 6.32 degrees, the tooth pitch angle is 9 degrees, the diameter of a main base circle is 48.69mm, the number of teeth of a worm wheel surrounding 17 is 6.5, the half working angle of the worm is 17.311 degrees, the working length of the worm is 37.529.

The oil film thickness geometric coefficient of the present example was 11.89, and the contact property evaluation value was 2.64.

Divide the starting button that is equipped with the start laser instrument on the induction system base respectively, when induction system body 1 placed on dividing the induction system base, the starting button was pressed, and the laser instrument starts.

Before the induction device is used, after the base of the sub-induction device is fixed, the laser is adjusted to rotate up and down and left and right until laser emitted by the laser is aligned with the optical receiving assembly. Be equipped with the pilot lamp on total induction system base 5, the pilot lamp is used for instructing optical receiving component whether to receive laser signal. The integrated circuit has a memory function and can store the angle of the laser corresponding to the optical receiving component after the base of the sub-sensing device is fixed at a certain position.

As shown in fig. 4, the distance measuring assembly 13 includes a collimating mirror, a narrow-band filter 18, a signal shaping circuit 20, a pulse signal detector 19, and a time measuring chip 21, the laser reflected by the dichroic filter 7 passes through the collimating mirror, the narrow-band filter 18, the pulse signal detector 19, and the signal shaping circuit 20 in sequence, and the collimating mirror and the narrow-band filter 18 perform filtering processing on the laser spectrum to reduce background noise. The pulse signal detector 19 is an avalanche diode detector or a photomultiplier detector. When the pulse signal detector 19 corresponds to a target photon, the pulse signal detector 19 outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit 20 and then output to the time measurement chip 21, the time measurement chip finally measures the flight time of the laser from the sensing device body 1 to the total sensing device base 5 by accurately measuring and timing the occurrence time of the pulse signal which emits the laser at regular intervals, further, the distance between the sensing device body 1 and the total sensing device base 5 is obtained, the obtained data of the distance is transmitted to the infrared emission assembly 22, and the infrared emission assembly 22 adjusts the focal length according to the distance between the sensing device body 1 and the total sensing device base 5.

The infrared emission component 22 comprises a continuous zooming structure and an infrared emission diode, wherein the continuous zooming structure comprises a cylindrical shell, a zoom lens, a fine adjustment lens, a compensation lens, a zoom lens frame, a compensation lens frame, a fine adjustment lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacer ring. The middle section of cylinder casing is equipped with two sets of four symmetrical cam grooves, is first cam groove and second cam groove respectively.

The slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is the focal length of the variable magnification group, y and x are the lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively.

The zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings.

The variable power lens group comprises a front variable power lens and a rear variable power lens, wherein in the embodiment, the front variable power lens is an orthodontic convex lens, and the rear variable power lens is a biconcave lens. The front zoom lens is fixed at the foremost end of the cylindrical shell, and the rear zoom lens is fixedly connected with the second cam groove through the guide nail after being installed on the lens frame.

In this embodiment, the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being installed on the lens frame.

In this embodiment, the fine adjustment lens assembly is an orthodontic convex lens, and the fine adjustment lens assembly frame holds the fine adjustment lens assembly and is disposed at one end of the cylindrical housing. The motor provides lens motion driving force, is connected with the zoom group lens frame and drives the zoom group lens frame to move. The inner surface of the cylindrical shell and the contact surface of the fine adjustment lens frame are provided with fine adjustment gear rings along the circumferential direction, the fine adjustment gear rings are adhered to the fine adjustment lens frame, the fine adjustment gear rings can rotate relative to the cylindrical shell under the driving of a motor, and the fine adjustment gear rings can adjust the distance between the fine adjustment lens and other lenses.

The continuous zooming structure can ensure that the optical system can stably run in the whole zooming process while realizing quadruple infrared continuous zooming, and can not generate larger pressure on the cam, abrade the cam curve and influence the precision of the optical system.

The infrared emitting diodes are sequentially arranged and arranged on one side, away from the compensation group lens, of the fine adjustment group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body 1 and the total induction device base 5.

Infrared optical processing subassembly 12 includes infrared receiving tube, and when the people was located induction system body 1 induction area, the infrared ray of infrared emission subassembly transmission was sheltered from the after-reflection to the optical receiving subassembly by the people, infrared receiving tube receives the infrared spectrum after-output signal of telecommunication, and the music is broadcast to miniature audio amplifier.

The method comprises the following steps of carrying out static infrared target test, fixing a total induction device base 5, installing a sub-induction device base at the positions 520cm, 50cm and 80cm away from the total induction device base, placing an induction device body 1 on the sub-induction device base, arranging a swinging device at one side of the induction device body 1, arranging a simulation object at one end of the swinging device, testing the sensitivity of the induction device when the simulation object moves to the position 20cm below the induction device body 1 at intervals, and finding that the success rate is 99.1%, 98.4% and 96.8% after testing.

Example two

The device comprises a sensing device body 1, a main sensing device base 5 and a plurality of detachable sub sensing device bases, wherein as shown in figure 1, the sensing device body 1 is detachably arranged on the main sensing device base 5, and the sub sensing device bases are arranged at different positions, so that the use by a user is facilitated. The total sensing device base 5 comprises an optical receiving component, an infrared emitting component 22, a distance measuring component 13 and an infrared optical processing component 12. And laser emission assemblies 6 are respectively arranged on the sub-sensing device bases. The induction device body 1 is arranged in the mobile phone, and the total induction device base 5 is arranged on the small-sized sound box.

As shown in fig. 2, the optical receiving component can receive laser light and infrared light simultaneously, or receive laser light or infrared light separately. The optical receiving component comprises a color separation sheet 7, a plano-concave lens 8 with a small hole at the center and a hyperboloid convex lens 9 which is symmetrically arranged on an optical axis with the plano-concave lens 8, wherein the color separation sheet 7 is positioned on one side of the plano-concave lens 8 far away from the hyperboloid convex lens. Infrared rays and/or laser received by the optical receiving assembly are reflected by the reflecting mirror 11 and the rapid tilting mirror 10 and then converged into parallel light, the parallel light is emitted into one side of the plano-concave lens 8, which is far away from the color separation sheet 7, is refracted by the plano-concave lens 8 and is emitted into the hyperboloid convex mirror, and the parallel light passes through a small hole in the center of the plano-concave lens 8 and is emitted into the color separation sheet 7 under the reflection of the hyperboloid convex mirror. The infrared spectrum of the infrared ray penetrates through the color separation sheet 7 to enter the infrared optical processing component 12, and the laser enters the distance measuring component 13 after being reflected by the color separation sheet 7. The optical receiving assembly is used for receiving laser and infrared rays simultaneously, the laser receiving device and the infrared receiving device are integrated, the size of the sensing device is greatly reduced, the sensing device is suitable for the total sensing device bases 5 with different specifications, the structure is simple, and the maintenance work of workers is facilitated.

The laser emitting assembly 6 comprises a rotary drive mechanism 14, an integrated circuit and a 532nm laser. The laser can be triggered to emit laser by an external trigger signal. The laser comprises a laser head, a laser controller and a laser trigger. The laser head is integrated with a silicon PIN photodiode, and can inductively emit a main wave and directly output a main wave electric signal pulse. The laser head is connected with the laser controller through a cable, and the laser controller provides a laser power supply, temperature control and trigger control. The laser trigger is arranged at the joint of the induction device body 1 and the sub-induction device base. When the sensing device body 1 is arranged on the main sensing device base 5, the laser trigger sends out a trigger signal to trigger the laser control panel to start, and the laser head is triggered to emit laser at intervals.

As shown in fig. 3, the swing driving mechanism 14 includes a rotating shaft, a supporting frame, a driving motor, an enveloping worm 16, a worm wheel turntable 17 and a protective cover. The driving motors include a first driving motor 15 and a second driving motor. The first driving motor 15 is mounted at one end of the enveloping worm 16 and drives the enveloping worm 16 to rotate. The tooth surface of the enveloping worm 16 is meshed with the tooth surface of the worm wheel turntable 17, the first driving motor 15 drives the enveloping worm 16 to rotate around the central shaft of the enveloping worm, and the enveloping worm 16 drives the worm wheel turntable 17 to rotate. The axis of rotation passes and fixes the laser instrument, the support frame is located at the both ends of axis of rotation, the support frame is installed in the upper surface of worm wheel carousel 17, and first driving motor 15 rotates envelope worm 16, and envelope worm 16 drives worm wheel carousel 17 and support frame, laser instrument and rotates 360 degrees rotations. The second driving motor is connected with the rotating shaft, so that the laser can rotate around the rotating shaft, and the laser direction emitted by the laser is adjusted. In this embodiment, a beam expanding and collimating lens is integrated inside the laser, so as to provide high-parallelism and low-divergence laser.

The tooth surface equation of the enveloping worm 16 is

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dfor working the angle of profile of the grinding wheel, r, of enveloping worm 16_dFor machining the grinding wheel radius of enveloping worm 16, S_aFor machining the width of the grinding wheel tip of the enveloping worm 16, β is the grinding wheel inclination angle for machining the enveloping worm 16,as turns of wormsAnd (4) an angle.

There are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe angle theta.

Selecting one of the working regionsThe value of u is then selected over a range of full tooth height values and the variable θ is derived from the flank equation of enveloping worm 16. Newton's iterative solution is performed on the tooth surface equation of enveloping worm 16: as can be judged from the actual conditions of machining, the value theta satisfying the tooth surface equation of the enveloping worm 16 is in the vicinity of 180 DEG, so that a set of tooth surface equations satisfying the enveloping worm 16 is obtained in the range of 170 DEG to 190 DEGValue ofWill obtainSubstitution intoIn the formula A point of contact on the enveloping worm 16 is obtained. Correspond to the same oneThe value of u is different in the range of the full tooth height, and can be obtained by sequentiallyThe conjugate condition equation is contacted with different theta values, so that a plurality of contact points can be obtained, and the contact points are connected to form a contact line. Finally corresponding to differentThe values of the different contact lines are determined, which form the helicoid of the worm.

The failure modes of the enveloping worm 16 include both bulk failure and flank failure, and the bulk failure of the enveloping worm 16 is often due to severe shock or short term overload experienced during the drive, or relatively severe load concentrations along the line of contact. Tooth surface failures of the enveloping worm 16 include contact fatigue pitting, gluing, galling, breaking, and the like. The integral failure and the tooth surface failure of the enveloping worm 16 are closely related to the contact performance and the lubricating performance of the enveloping worm 16, so the performance of the enveloping worm 16 is triggered and evaluated from the contact performance and the lubricating performance of the enveloping worm 16.

The excellent lubricating property can reduce friction, reduce abrasion, reduce temperature rise, increase the gluing resistance of the enveloping worm 16 and improve the bearing capacity of the enveloping worm 16, thereby achieving the effect of prolonging the service life of the enveloping worm. Excellent lubricating performance is obtained, which is essentially to establish a lubricating oil film with a certain thickness between the worm and the worm wheel tooth surfaces, ensuring that the tooth surfaces can still be in a liquid lubricating environment or at least work in a semi-liquid lubricating environment under a great pressure.

Evaluation of the lubricating properties of enveloping worm 16: and (4) setting an oil film thickness geometric coefficient according to an elastic fluid dynamic pressure lubrication theory and a Darsen formula to evaluate the oil film thickness.

k_h＝v_n ^0.7/(K_12N ^0.43)

v_nIs the relative entrainment velocity, v_nCalculated by the following formulaWherein (v)₁)_o1And (v)₂)_o1The speed of the enveloping worm 16 and the worm wheel turntable 17 at the meshing point, (N)_o1Is the normal vector at any point on the instantaneous contact line of enveloping worm 16, | N | (N)_ξ ²+N_η ²)^0.5。

Further, since the oil film thickness at the roots of the meshing-end worm is the smallest, the oil film thickness at the roots of the meshing-end worm is selected to evaluate the performance of the enveloping worm 16.

The excellent contact performance means that the distribution of the contact lines on the enveloping worm 16 cannot be too wide or too narrow, and when the distribution of the contact lines cannot be too wide or too narrow. When the contact lines are distributed too widely, the contact lines at the working initial angles of the enveloping worm 16 are positioned outside the tooth surfaces of the enveloping worm 16, which shows that the number of meshing teeth between the enveloping worm 16 and the worm wheel turntable 17 is less. Conversely, when the contact lines are distributed too narrowly, the contact lines tend to be concentrated on the central symmetry plane of the worm wheel turntable 17, which results in the reduction of the strength of the tooth surface of the worm wheel turntable 17.

Evaluation of contact performance of enveloping worm 16: the contact performance evaluation value f (x) | | z is established by taking the contact point of the primary contact line corresponding to the working initial angle on the reference circle of the worm wheel turntable 17 as an object₁|-b₂/2|, wherein | z₁L is the distance from the specific primary contact point to the central symmetry plane of the worm wheel turntable 17, b₂The worm wheel turntable 17 has the width of teeth.

And optimizing a tooth surface equation of the enveloping worm 16 by using optimization software to ensure that the geometrical coefficient of the thickness of the oil film at the tooth root of the worm at the meshing end is maximum and the contact performance evaluation value is minimum.

After the enveloping worm 16 model of the rotary driving structure is established, the model is optimized, and finally the enveloping worm 16 has excellent lubricating performance and contact performance, so that the friction of the enveloping worm 16 is reduced, the abrasion is reduced, the temperature rise is reduced, the gluing resistance of the enveloping worm 16 is increased, and the bearing capacity of the enveloping worm 16 is improved. Moreover, the contact range between the tooth surface of the enveloping worm 16 and the tooth surface of the worm wheel turntable 17 is reasonable, thereby prolonging the service life of the enveloping worm.

Taking the tooth surface equation of the enveloping worm 16 with the center distance of 75mm, the transmission ratio of 40 and the number of worm heads of 1, fitting the enveloping worm 16, and obtaining the key geometric parameters and the size of the enveloping worm 16 after optimization: the center distance is 75mm, the transmission ratio is 40, the number of worm heads is 1, the diameter of a worm reference circle is 26.25mm, the tooth crest height is 2.166mm, the tooth root height is 2.784mm, the full tooth height is 4.95mm, the tooth crest gap is 0.618mm, the radius of a worm tooth root circle is 20.682mm, the radius of a worm tooth crest arc is 30.582mm, the radius of a worm tooth root arc is 64.659mm, the lead angle of a worm throat reference circle is 6.72 degrees, the tooth pitch angle is 9 degrees, the diameter of a main base circle is 47.25mm, the number of teeth of a worm surrounding worm wheel turntable 17 is 4.5, the working half angle of the worm is 18.225 degrees, the working length of the.

The oil film thickness geometric coefficient of the present example was 12.26, and the contact property evaluation value was 3.94.

Divide the starting button that is equipped with the start laser instrument on the induction system base respectively, when induction system body 1 placed on dividing the induction system base, the starting button was pressed, and the laser instrument starts.

Before the induction device is used, after the base of the sub-induction device is fixed, the laser is adjusted to rotate up and down and left and right until laser emitted by the laser is aligned with the optical receiving assembly. Be equipped with the pilot lamp on total induction system base 5, the pilot lamp is used for instructing optical receiving component whether to receive laser signal. The integrated circuit has a memory function and can store the angle of the laser corresponding to the optical receiving component after the base of the sub-sensing device is fixed at a certain position.

As shown in fig. 4, the distance measuring assembly 13 includes a collimating mirror, a narrow-band filter 18, a signal shaping circuit 20, a pulse signal detector 19, and a time measuring chip 21, the laser reflected by the dichroic filter 7 passes through the collimating mirror, the narrow-band filter 18, the pulse signal detector 19, and the signal shaping circuit 20 in sequence, and the collimating mirror and the narrow-band filter 18 perform filtering processing on the laser spectrum to reduce background noise. The pulse signal detector 19 is an avalanche diode detector or a photomultiplier detector. When the pulse signal detector 19 corresponds to a target photon, the pulse signal detector 19 outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit 20 and then output to the time measurement chip 21, the time measurement chip finally measures the flight time of the laser from the sensing device body 1 to the total sensing device base 5 by accurately measuring and timing the occurrence time of the pulse signal which emits the laser at regular intervals, further, the distance between the sensing device body 1 and the total sensing device base 5 is obtained, the obtained data of the distance is transmitted to the infrared emission assembly 22, and the infrared emission assembly 22 adjusts the focal length according to the distance between the sensing device body 1 and the total sensing device base 5.

The infrared emission component 22 comprises a continuous zooming structure and an infrared emission diode, wherein the continuous zooming structure comprises a cylindrical shell, a zoom lens, a fine adjustment lens, a compensation lens, a zoom lens frame, a compensation lens frame, a fine adjustment lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacer ring. The middle section of cylinder casing is equipped with two sets of four symmetrical cam grooves, is first cam groove and second cam groove respectively.

The slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is the focal length of the variable magnification group, y and x are the lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively.

The zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings.

The variable power lens group comprises a front variable power lens and a rear variable power lens, wherein in the embodiment, the front variable power lens is an orthodontic convex lens, and the rear variable power lens is a biconcave lens. The front zoom lens is fixed at the foremost end of the cylindrical shell, and the rear zoom lens is fixedly connected with the second cam groove through the guide nail after being installed on the lens frame.

In this embodiment, the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being installed on the lens frame.

In this embodiment, the fine adjustment lens assembly is an orthodontic convex lens, and the fine adjustment lens assembly frame holds the fine adjustment lens assembly and is disposed at one end of the cylindrical housing. The motor provides lens motion driving force, is connected with the zoom group lens frame and drives the zoom group lens frame to move. The inner surface of the cylindrical shell and the contact surface of the fine adjustment lens frame are provided with fine adjustment gear rings along the circumferential direction, the fine adjustment gear rings are adhered to the fine adjustment lens frame, the fine adjustment gear rings can rotate relative to the cylindrical shell under the driving of a motor, and the fine adjustment gear rings can adjust the distance between the fine adjustment lens and other lenses.

The continuous zooming structure can ensure that the optical system can stably run in the whole zooming process while realizing quadruple infrared continuous zooming, and can not generate larger pressure on the cam, abrade the cam curve and influence the precision of the optical system.

The infrared emitting diodes are sequentially arranged and arranged on one side, away from the compensation group lens, of the fine adjustment group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body 1 and the total induction device base 5.

Infrared optical processing subassembly 12 includes infrared receiving tube, and when the people was located induction system body 1 induction area, the infrared ray of infrared emission subassembly transmission was sheltered from the after-reflection to the optical receiving subassembly by the people, infrared receiving tube receives the infrared spectrum after-output signal of telecommunication, and the music is broadcast to miniature audio amplifier.

The method comprises the following steps of carrying out static infrared target test, fixing a total induction device base 5, installing a branch induction device base at the positions 520cm, 50cm and 80cm away from the total induction device base, placing an induction device body 1 on the branch induction device base, arranging a swinging device at one side of the induction device body 1, arranging a simulation object at one end of the swinging device, testing the sensitivity of the induction device by moving the simulation object to the position 20cm below the induction device body 1 at intervals, and finding that the success rate is 99.6%, 97.2% and 97.6% after testing.

EXAMPLE III

The device comprises a sensing device body 1, a main sensing device base 5 and a plurality of detachable sub sensing device bases, wherein as shown in figure 1, the sensing device body 1 is detachably arranged on the main sensing device base 5, and the sub sensing device bases are arranged at different positions, so that the use by a user is facilitated. The total sensing device base 5 comprises an optical receiving component, an infrared emitting component 22, a distance measuring component 13 and an infrared optical processing component 12. And laser emission assemblies 6 are respectively arranged on the sub-sensing device bases. The induction device body 1 is arranged in the mobile phone, and the total induction device base 5 is arranged on the small-sized sound box.

As shown in fig. 2, the optical receiving component can receive laser light and infrared light simultaneously, or receive laser light or infrared light separately. The optical receiving component comprises a color separation sheet 7, a plano-concave lens 8 with a small hole at the center and a hyperboloid convex lens 9 which is symmetrically arranged on an optical axis with the plano-concave lens 8, wherein the color separation sheet 7 is positioned on one side of the plano-concave lens 8 far away from the hyperboloid convex lens. Infrared rays and/or laser received by the optical receiving assembly are reflected by the reflecting mirror 11 and the rapid tilting mirror 10 and then converged into parallel light, the parallel light is emitted into one side of the plano-concave lens 8, which is far away from the color separation sheet 7, is refracted by the plano-concave lens 8 and is emitted into the hyperboloid convex mirror, and the parallel light passes through a small hole in the center of the plano-concave lens 8 and is emitted into the color separation sheet 7 under the reflection of the hyperboloid convex mirror. The infrared spectrum of the infrared ray penetrates through the color separation sheet 7 to enter the infrared optical processing component 12, and the laser enters the distance measuring component 13 after being reflected by the color separation sheet 7. The optical receiving assembly is used for receiving laser and infrared rays simultaneously, the laser receiving device and the infrared receiving device are integrated, the size of the sensing device is greatly reduced, the sensing device is suitable for the total sensing device bases 5 with different specifications, the structure is simple, and the maintenance work of workers is facilitated.

The laser emitting assembly 6 comprises a rotary drive mechanism 14, an integrated circuit and a 532nm laser. The laser can be triggered to emit laser by an external trigger signal. The laser comprises a laser head, a laser controller and a laser trigger. The laser head is integrated with a silicon PIN photodiode, and can inductively emit a main wave and directly output a main wave electric signal pulse. The laser head is connected with the laser controller through a cable, and the laser controller provides a laser power supply, temperature control and trigger control. The laser trigger is arranged at the joint of the induction device body 1 and the sub-induction device base. When the sensing device body 1 is arranged on the main sensing device base 5, the laser trigger sends out a trigger signal to trigger the laser control board to start, and the laser head is triggered to emit laser at intervals.

As shown in fig. 3, the swing driving mechanism 14 includes a rotating shaft, a supporting frame, a driving motor, an enveloping worm 16, a worm wheel turntable 17 and a protective cover. The driving motors include a first driving motor 15 and a second driving motor. The first driving motor 15 is mounted at one end of the enveloping worm 16 and drives the enveloping worm 16 to rotate. The tooth surface of the enveloping worm 16 is meshed with the tooth surface of the worm wheel turntable 17, the first driving motor 15 drives the enveloping worm 16 to rotate around the central shaft of the enveloping worm, and the enveloping worm 16 drives the worm wheel turntable 17 to rotate. The axis of rotation passes and fixes the laser instrument, the support frame is located at the both ends of axis of rotation, the support frame is installed in the upper surface of worm wheel carousel 17, and first driving motor 15 rotates envelope worm 16, and envelope worm 16 drives worm wheel carousel 17 and support frame, laser instrument and rotates 360 degrees rotations. The second driving motor is connected with the rotating shaft, so that the laser can rotate around the rotating shaft, and the laser direction emitted by the laser is adjusted. In this embodiment, a beam expanding and collimating lens is integrated inside the laser, so as to provide high-parallelism and low-divergence laser.

The tooth surface equation of the enveloping worm 16 is

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dfor working the angle of profile of the grinding wheel, r, of enveloping worm 16_dFor machining the grinding wheel radius of enveloping worm 16, S_aFor machining the width of the grinding wheel tip of the enveloping worm 16, β is the grinding wheel inclination angle for machining the enveloping worm 16,the angle of rotation of the worm.

There are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe angle theta.

Selecting one of the working regionsThe value of u is then selected over a range of full tooth height values and the variable θ is derived from the flank equation of enveloping worm 16. Newton's iterative solution is performed on the tooth surface equation of enveloping worm 16: as can be judged from the actual conditions of machining, the value theta satisfying the tooth surface equation of the enveloping worm 16 is in the vicinity of 180 DEG, so that a set of tooth surface equations satisfying the enveloping worm 16 is obtained in the range of 170 DEG to 190 DEGValue ofWill obtainSubstitution intoIn the formula A point of contact on the enveloping worm 16 is obtained. Correspond to the same oneThe value of u is different in the range of full tooth height, different theta values can be contacted by successive conjugate condition equations, so that a plurality of contact points can be obtained, and the contact points are connected to form a contact line. Finally corresponding to differentThe values of the different contact lines are determined, which form the helicoid of the worm.

The failure modes of the enveloping worm 16 include both bulk failure and flank failure, and the bulk failure of the enveloping worm 16 is often due to severe shock or short term overload experienced during the drive, or relatively severe load concentrations along the line of contact. Tooth surface failures of the enveloping worm 16 include contact fatigue pitting, gluing, galling, breaking, and the like. The integral failure and the tooth surface failure of the enveloping worm 16 are closely related to the contact performance and the lubricating performance of the enveloping worm 16, so the performance of the enveloping worm 16 is triggered and evaluated from the contact performance and the lubricating performance of the enveloping worm 16.

The excellent lubricating property can reduce friction, reduce abrasion, reduce temperature rise, increase the gluing resistance of the enveloping worm 16 and improve the bearing capacity of the enveloping worm 16, thereby achieving the effect of prolonging the service life of the enveloping worm. Excellent lubricating performance is obtained, which is essentially to establish a lubricating oil film with a certain thickness between the worm and the worm wheel tooth surfaces, ensuring that the tooth surfaces can still be in a liquid lubricating environment or at least work in a semi-liquid lubricating environment under a great pressure.

Evaluation of the lubricating properties of enveloping worm 16: and (4) setting an oil film thickness geometric coefficient according to an elastic fluid dynamic pressure lubrication theory and a Darsen formula to evaluate the oil film thickness.

k_h＝v_n ^0.7/(K_12N ^0.43)

v_nIs the relative entrainment velocity, v_nCalculated by the following formulaWherein (v)₁)_o1And (v)₂)_o1The speed of the enveloping worm 16 and the worm wheel turntable 17 at the meshing point, (N)_o1Is the normal vector at any point on the instantaneous contact line of enveloping worm 16, | N | (N)_ξ ²+N_η ²)^0.5。

Further, since the oil film thickness at the roots of the meshing-end worm is the smallest, the oil film thickness at the roots of the meshing-end worm is selected to evaluate the performance of the enveloping worm 16.

The excellent contact performance means that the distribution of the contact lines on the enveloping worm 16 cannot be too wide or too narrow, and when the distribution of the contact lines cannot be too wide or too narrow. When the contact lines are distributed too widely, the contact lines at the working initial angles of the enveloping worm 16 are positioned outside the tooth surfaces of the enveloping worm 16, which shows that the number of meshing teeth between the enveloping worm 16 and the worm wheel turntable 17 is less. Conversely, when the contact lines are distributed too narrowly, the contact lines tend to be concentrated on the central symmetry plane of the worm wheel turntable 17, which results in the reduction of the strength of the tooth surface of the worm wheel turntable 17.

Evaluation of contact performance of enveloping worm 16: the contact performance evaluation value f (x) | | z is established by taking the contact point of the primary contact line corresponding to the working initial angle on the reference circle of the worm wheel turntable 17 as an object₁|-b₂/2|, wherein | z₁L is the distance from the specific primary contact point to the central symmetry plane of the worm wheel turntable 17, b₂The worm wheel turntable 17 has the width of teeth.

Optimizing a tooth surface equation of the enveloping worm 16 by utilizing optimization software to ensure that the geometrical coefficient of the thickness of an oil film at the tooth root of the worm at the meshing end is maximum and the contact performance evaluation value is minimum

After the enveloping worm 16 model of the rotary driving structure is established, the model is optimized, and finally the enveloping worm 16 has excellent lubricating performance and contact performance, so that the friction of the enveloping worm 16 is reduced, the abrasion is reduced, the temperature rise is reduced, the gluing resistance of the enveloping worm 16 is increased, and the bearing capacity of the enveloping worm 16 is improved. Moreover, the contact range between the tooth surface of the enveloping worm 16 and the tooth surface of the worm wheel turntable 17 is reasonable, thereby prolonging the service life of the enveloping worm.

Taking the enveloping worm 16 with the center distance of 70mm, the transmission ratio of 40 and the number of worm heads of 1 to fit the tooth surface equation of the enveloping worm 16, and obtaining the key geometric parameters and the size of the enveloping worm 16 after optimization: the center distance is 70mm, the transmission ratio is 40, the number of worm heads is 1, the diameter of a worm reference circle is 27.75mm, the tooth crest height is 2.139mm, the tooth root height is 2.751mm, the full tooth height is 4.89mm, the tooth crest clearance is 0.611mm, the radius of a worm tooth root circle is 22.248mm, the radius of a worm tooth crest arc is 32.028mm, the radius of a worm tooth root arc is 63.876mm, the lead angle of a worm throat reference circle is 6.28 degrees, the tooth pitch angle is 9 degrees, the diameter of a main base circle is 46.5mm, the number of teeth of a worm surrounding worm wheel turntable 17 is 4.5, the working half angle of the worm is 18.225 degrees, the working length of the worm is.

The oil film thickness geometric coefficient of the present example was 13.80, and the contact property evaluation value was 1.87.

Divide the starting button that is equipped with the start laser instrument on the induction system base respectively, when induction system body 1 placed on dividing the induction system base, the starting button was pressed, and the laser instrument starts.

Before the induction device is used, after the base of the sub-induction device is fixed, the laser is adjusted to rotate up and down and left and right until laser emitted by the laser is aligned with the optical receiving assembly. Be equipped with the pilot lamp on total induction system base 5, the pilot lamp is used for instructing optical receiving component whether to receive laser signal. The integrated circuit has a memory function and can store the angle of the laser corresponding to the optical receiving component after the base of the sub-sensing device is fixed at a certain position.

As shown in fig. 4, the distance measuring assembly 13 includes a collimating mirror, a narrow-band filter 18, a signal shaping circuit 20, a pulse signal detector 19, and a time measuring chip 21, the laser reflected by the dichroic filter 7 passes through the collimating mirror, the narrow-band filter 18, the pulse signal detector 19, and the signal shaping circuit 20 in sequence, and the collimating mirror and the narrow-band filter 18 perform filtering processing on the laser spectrum to reduce background noise. The pulse signal detector 19 is an avalanche diode detector or a photomultiplier detector. When the pulse signal detector 19 corresponds to a target photon, the pulse signal detector 19 outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit 20 and then output to the time measurement chip 21, the time measurement chip finally measures the flight time of the laser from the sensing device body 1 to the total sensing device base 5 by accurately measuring and timing the occurrence time of the pulse signal which emits the laser at regular intervals, further, the distance between the sensing device body 1 and the total sensing device base 5 is obtained, the obtained data of the distance is transmitted to the infrared emission assembly 22, and the infrared emission assembly 22 adjusts the focal length according to the distance between the sensing device body 1 and the total sensing device base 5.

The infrared emission component 22 comprises a continuous zooming structure and an infrared emission diode, wherein the continuous zooming structure comprises a cylindrical shell, a zoom lens, a fine adjustment lens, a compensation lens, a zoom lens frame, a compensation lens frame, a fine adjustment lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacer ring. The middle section of cylinder casing is equipped with two sets of four symmetrical cam grooves, is first cam groove and second cam groove respectively.

The slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is the focal length of the variable magnification group, y and x are the lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively.

The zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings.

The variable power lens group comprises a front variable power lens and a rear variable power lens, wherein in the embodiment, the front variable power lens is an orthodontic convex lens, and the rear variable power lens is a biconcave lens. The front zoom lens is fixed at the foremost end of the cylindrical shell, and the rear zoom lens is fixedly connected with the second cam groove through the guide nail after being installed on the lens frame.

In this embodiment, the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being installed on the lens frame.

In this embodiment, the fine adjustment lens assembly is an orthodontic convex lens, and the fine adjustment lens assembly frame holds the fine adjustment lens assembly and is disposed at one end of the cylindrical housing. The motor provides lens motion driving force, is connected with the zoom group lens frame and drives the zoom group lens frame to move. The inner surface of the cylindrical shell and the contact surface of the fine adjustment lens frame are provided with fine adjustment gear rings along the circumferential direction, the fine adjustment gear rings are adhered to the fine adjustment lens frame, the fine adjustment gear rings can rotate relative to the cylindrical shell under the driving of a motor, and the fine adjustment gear rings can adjust the distance between the fine adjustment lens and other lenses.

The continuous zooming structure can ensure that the optical system can stably run in the whole zooming process while realizing quadruple infrared continuous zooming, and can not generate larger pressure on the cam, abrade the cam curve and influence the precision of the optical system.

The infrared emitting diodes are sequentially arranged and arranged on one side, away from the compensation group lens, of the fine adjustment group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body 1 and the total induction device base 5.

Infrared optical processing subassembly 12 includes infrared receiving tube, and when the people was located induction system body 1 induction area, the infrared ray of infrared emission subassembly transmission was sheltered from the after-reflection to the optical receiving subassembly by the people, infrared receiving tube receives the infrared spectrum after-output signal of telecommunication, and the music is broadcast to miniature audio amplifier.

The method comprises the following steps of carrying out static infrared target test, fixing a total induction device base 5, installing a sub-induction device base at the positions 520cm, 50cm and 80cm away from the total induction device base, placing an induction device body 1 on the sub-induction device base, arranging a swinging device at one side of the induction device body 1, arranging a simulation object at one end of the swinging device, testing the sensitivity of the induction device by moving the simulation object to the position 20cm below the induction device body 1 at intervals, and finding that the success rate is 98.3%, 99.8% and 97.3% after testing.

Example four

The device comprises a sensing device body 1, a main sensing device base 5 and a plurality of detachable sub sensing device bases, wherein as shown in figure 1, the sensing device body 1 is detachably arranged on the main sensing device base 5, and the sub sensing device bases are arranged at different positions, so that the use by a user is facilitated. The total sensing device base 5 comprises an optical receiving component, an infrared emitting component 22, a distance measuring component 13 and an infrared optical processing component 12. And laser emission assemblies 6 are respectively arranged on the sub-sensing device bases. The induction device body 1 is arranged in the mobile phone, and the total induction device base 5 is arranged on the small-sized sound box.

As shown in fig. 2, the optical receiving component can receive laser light and infrared light simultaneously, or receive laser light or infrared light separately. The optical receiving component comprises a color separation sheet 7, a plano-concave lens 8 with a small hole at the center and a hyperboloid convex lens 9 which is symmetrically arranged on an optical axis with the plano-concave lens 8, wherein the color separation sheet 7 is positioned on one side of the plano-concave lens 8 far away from the hyperboloid convex lens. Infrared rays and/or laser received by the optical receiving assembly are reflected by the reflecting mirror 11 and the rapid tilting mirror 10 and then converged into parallel light, the parallel light is emitted into one side of the plano-concave lens 8, which is far away from the color separation sheet 7, is refracted by the plano-concave lens 8 and is emitted into the hyperboloid convex mirror, and the parallel light passes through a small hole in the center of the plano-concave lens 8 and is emitted into the color separation sheet 7 under the reflection of the hyperboloid convex mirror. The infrared spectrum of the infrared ray penetrates through the color separation sheet 7 to enter the infrared optical processing component 12, and the laser enters the distance measuring component 13 after being reflected by the color separation sheet 7. The optical receiving assembly is used for receiving laser and infrared rays simultaneously, the laser receiving device and the infrared receiving device are integrated, the size of the sensing device is greatly reduced, the sensing device is suitable for the total sensing device bases 5 with different specifications, the structure is simple, and the maintenance work of workers is facilitated.

The laser emitting assembly 6 comprises a rotary drive mechanism 14, an integrated circuit and a 532nm laser. The laser can be triggered to emit laser by an external trigger signal. The laser comprises a laser head, a laser controller and a laser trigger. The laser head is integrated with a silicon PIN photodiode, and can inductively emit a main wave and directly output a main wave electric signal pulse. The laser head is connected with the laser controller through a cable, and the laser controller provides a laser power supply, temperature control and trigger control. The laser trigger is arranged at the joint of the induction device body 1 and the sub-induction device base. When the sensing device body 1 is arranged on the main sensing device base 5, the laser trigger sends out a trigger signal to trigger the laser control panel to start, and the laser head is triggered to emit laser at intervals.

As shown in fig. 3, the swing driving mechanism 14 includes a rotating shaft, a supporting frame, a driving motor, an enveloping worm 16, a worm wheel turntable 17 and a protective cover. The driving motors include a first driving motor 15 and a second driving motor. The first driving motor 15 is mounted at one end of the enveloping worm 16 and drives the enveloping worm 16 to rotate. The tooth surface of the enveloping worm 16 is meshed with the tooth surface of the worm wheel rotating disc 17, the first driving motor 15 drives the enveloping worm 16 to rotate around the central shaft of the enveloping worm, and the enveloping worm 16 drives the worm wheel rotating disc 17 to rotate. The axis of rotation passes and fixes the laser instrument, the support frame is located at the both ends of axis of rotation, the support frame is installed in the upper surface of worm wheel carousel 17, and first driving motor 15 rotates envelope worm 16, and envelope worm 16 drives worm wheel carousel 17 and support frame, laser instrument and rotates 360 degrees rotations. The second driving motor is connected with the rotating shaft, so that the laser can rotate around the rotating shaft, and the laser direction emitted by the laser is adjusted. In this embodiment, a beam expanding and collimating lens is integrated inside the laser, so as to provide high-parallelism and low-divergence laser.

The tooth surface equation of the enveloping worm 16 is

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dfor working the angle of profile of the grinding wheel, r, of enveloping worm 16_dFor machining the grinding wheel radius of enveloping worm 16, S_aFor machining the width of the grinding wheel tip of the enveloping worm 16, β is the grinding wheel inclination angle for machining the enveloping worm 16,the angle of rotation of the worm.

There are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe angle theta.

Selecting one of the working regionsThe value of u is then selected over a range of full tooth height values and the variable θ is derived from the flank equation of enveloping worm 16. Newton's iterative solution is performed on the tooth surface equation of enveloping worm 16: as can be judged from the actual conditions of machining, the value theta satisfying the tooth surface equation of the enveloping worm 16 is in the vicinity of 180 DEG, so that a set of tooth surface equations satisfying the enveloping worm 16 is obtained in the range of 170 DEG to 190 DEGValue ofWill obtainSubstitution intoIn the formula A point of contact on the enveloping worm 16 is obtained. Correspond to the same oneThe value of u is different in the range of full tooth height, different theta values can be contacted by successive conjugate condition equations, so that a plurality of contact points can be obtained, and the contact points are connected to form a contact line. Finally corresponding to differentThe values of the different contact lines are determined, which form the helicoid of the worm.

The failure modes of the enveloping worm 16 include both bulk failure and flank failure, and the bulk failure of the enveloping worm 16 is often due to severe shock or short term overload experienced during the drive, or relatively severe load concentrations along the line of contact. Tooth surface failures of the enveloping worm 16 include contact fatigue pitting, gluing, galling, breaking, and the like. The integral failure and the tooth surface failure of the enveloping worm 16 are closely related to the contact performance and the lubricating performance of the enveloping worm 16, so the performance of the enveloping worm 16 is triggered and evaluated from the contact performance and the lubricating performance of the enveloping worm 16.

The excellent lubricating property can reduce friction, reduce abrasion, reduce temperature rise, increase the gluing resistance of the enveloping worm 16 and improve the bearing capacity of the enveloping worm 16, thereby achieving the effect of prolonging the service life of the enveloping worm. Excellent lubricating performance is obtained, which is essentially to establish a lubricating oil film with a certain thickness between the worm and the worm wheel tooth surfaces, ensuring that the tooth surfaces can still be in a liquid lubricating environment or at least work in a semi-liquid lubricating environment under a great pressure.

Evaluation of the lubricating properties of enveloping worm 16: and (4) setting an oil film thickness geometric coefficient according to an elastic fluid dynamic pressure lubrication theory and a Darsen formula to evaluate the oil film thickness.

k_h＝v_n ^0.7/(K_12N ^0.43)

v_nIs the relative entrainment velocity, v_nCalculated by the following formulaWherein (v)₁)_o1And (v)₂)_o1The speed of the enveloping worm 16 and the worm wheel turntable 17 at the meshing point, (N)_o1Is the normal vector at any point on the instantaneous contact line of enveloping worm 16, | N | (N)_ξ ²+N_η ²)^0.5。

Further, since the oil film thickness at the roots of the meshing-end worm is the smallest, the oil film thickness at the roots of the meshing-end worm is selected to evaluate the performance of the enveloping worm 16.

The excellent contact performance means that the distribution of the contact lines on the enveloping worm 16 cannot be too wide or too narrow, and when the distribution of the contact lines cannot be too wide or too narrow. When the contact lines are distributed too widely, the contact lines at the working initial angles of the enveloping worm 16 are positioned outside the tooth surfaces of the enveloping worm 16, which shows that the number of meshing teeth between the enveloping worm 16 and the worm wheel turntable 17 is less. Conversely, when the contact lines are distributed too narrowly, the contact lines tend to be concentrated on the central symmetry plane of the worm wheel turntable 17, which results in the reduction of the strength of the tooth surface of the worm wheel turntable 17.

Evaluation of contact performance of enveloping worm 16: to work withThe contact point of the first contact line corresponding to the initial angle on the reference circle of the worm wheel turntable 17 is used as an object to establish a contact performance evaluation value f (x) | | z₁|-b₂/2|, wherein | z₁L is the distance from the specific primary contact point to the central symmetry plane of the worm wheel turntable 17, b₂The worm wheel turntable 17 has the width of teeth.

And optimizing a tooth surface equation of the enveloping worm 16 by using optimization software to ensure that the geometrical coefficient of the thickness of the oil film at the tooth root of the worm at the meshing end is maximum and the contact performance evaluation value is minimum.

After the enveloping worm 16 model of the rotary driving structure is established, the model is optimized, and finally the enveloping worm 16 has excellent lubricating performance and contact performance, so that the friction of the enveloping worm 16 is reduced, the abrasion is reduced, the temperature rise is reduced, the gluing resistance of the enveloping worm 16 is increased, and the bearing capacity of the enveloping worm 16 is improved. Moreover, the contact range between the tooth surface of the enveloping worm 16 and the tooth surface of the worm wheel turntable 17 is reasonable, thereby prolonging the service life of the enveloping worm.

Taking the tooth surface equation of the enveloping worm 16 with the center distance of 65mm, the transmission ratio of 40 and the number of worm heads of 1, fitting the enveloping worm 16, and obtaining the key geometric parameters and the size of the enveloping worm 16 after optimization: the center distance is 65mm, the transmission ratio is 40, the number of worm heads is 1, the pitch circle diameter of the worm is 24.36mm, the tooth crest height is 1.856mm, the tooth root height is 2.426mm, the full tooth height is 3.59mm, the tooth crest gap is 0.4121mm, the tooth root radius is 21.351mm, the tooth crest arc radius of the worm is 28.103mm, the tooth root arc radius of the worm is 61.367mm, the throat pitch circle lead angle of the worm is 4.36 degrees, the pitch angle is 9 degrees, the main base circle diameter is 38.12mm, the worm surrounds the worm wheel turntable 17 and has the tooth number of 5, the working half angle of the worm is 16.358 degrees, the working length of the worm is 29.569mm, and the.

The oil film thickness geometric coefficient of the present example was 14.21, and the contact property evaluation value was 1.76.

Divide the starting button that is equipped with the start laser instrument on the induction system base respectively, when induction system body 1 placed on dividing the induction system base, the starting button was pressed, and the laser instrument starts.

Before the induction device is used, after the base of the sub-induction device is fixed, the laser is adjusted to rotate up and down and left and right until laser emitted by the laser is aligned with the optical receiving assembly. Be equipped with the pilot lamp on total induction system base 5, the pilot lamp is used for instructing optical receiving component whether to receive laser signal. The integrated circuit has a memory function and can store the angle of the laser corresponding to the optical receiving component after the base of the sub-sensing device is fixed at a certain position.

As shown in fig. 4, the distance measuring assembly 13 includes a collimating mirror, a narrow-band filter 18, a signal shaping circuit 20, a pulse signal detector 19, and a time measuring chip 21, the laser reflected by the dichroic filter 7 passes through the collimating mirror, the narrow-band filter 18, the pulse signal detector 19, and the signal shaping circuit 20 in sequence, and the collimating mirror and the narrow-band filter 18 perform filtering processing on the laser spectrum to reduce background noise. The pulse signal detector 19 is an avalanche diode detector or a photomultiplier detector. When the pulse signal detector 19 corresponds to a target photon, the pulse signal detector 19 outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit 20 and then output to the time measurement chip 21, the time measurement chip finally measures the flight time of the laser from the sensing device body 1 to the total sensing device base 5 by accurately measuring and timing the occurrence time of the pulse signal which emits the laser at regular intervals, further, the distance between the sensing device body 1 and the total sensing device base 5 is obtained, the obtained data of the distance is transmitted to the infrared emission assembly 22, and the infrared emission assembly 22 adjusts the focal length according to the distance between the sensing device body 1 and the total sensing device base 5.

The infrared emission component 22 comprises a continuous zooming structure and an infrared emission diode, wherein the continuous zooming structure comprises a cylindrical shell, a zoom lens, a fine adjustment lens, a compensation lens, a zoom lens frame, a compensation lens frame, a fine adjustment lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacer ring. The middle section of cylinder casing is equipped with two sets of four symmetrical cam grooves, is first cam groove and second cam groove respectively.

The slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is the focal length of the variable magnification group, y and x are the lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively.

The zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings.

The variable power lens group comprises a front variable power lens and a rear variable power lens, wherein in the embodiment, the front variable power lens is an orthodontic convex lens, and the rear variable power lens is a biconcave lens. The front zoom lens is fixed at the foremost end of the cylindrical shell, and the rear zoom lens is fixedly connected with the second cam groove through the guide nail after being installed on the lens frame.

In this embodiment, the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being installed on the lens frame.

In this embodiment, the fine adjustment lens assembly is an orthodontic convex lens, and the fine adjustment lens assembly frame holds the fine adjustment lens assembly and is disposed at one end of the cylindrical housing. The motor provides lens motion driving force, is connected with the zoom group lens frame and drives the zoom group lens frame to move. The inner surface of the cylindrical shell and the contact surface of the fine adjustment lens frame are provided with fine adjustment gear rings along the circumferential direction, the fine adjustment gear rings are adhered to the fine adjustment lens frame, the fine adjustment gear rings can rotate relative to the cylindrical shell under the driving of a motor, and the fine adjustment gear rings can adjust the distance between the fine adjustment lens and other lenses.

The continuous zooming structure can ensure that the optical system can stably run in the whole zooming process while realizing quadruple infrared continuous zooming, and can not generate larger pressure on the cam, abrade the cam curve and influence the precision of the optical system.

The infrared emitting diodes are sequentially arranged and arranged on one side, away from the compensation group lens, of the fine adjustment group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body 1 and the total induction device base 5.

Infrared optical processing subassembly 12 includes infrared receiving tube, and when the people was located induction system body 1 induction area, the infrared ray of infrared emission subassembly transmission was sheltered from the after-reflection to the optical receiving subassembly by the people, infrared receiving tube receives the infrared spectrum after-output signal of telecommunication, and the music is broadcast to miniature audio amplifier.

The method comprises the following steps of carrying out static infrared target test, fixing a total induction device base 5, installing a sub-induction device base at the positions 520cm, 50cm and 80cm away from the total induction device base, placing an induction device body 1 on the sub-induction device base, arranging a swinging device at one side of the induction device body 1, arranging a simulation object at one end of the swinging device, testing the sensitivity of the induction device by moving the simulation object to the position 20cm below the induction device body 1 at intervals, and finding that the success rate is 98.2%, 97.3% and 99.3% after testing.

EXAMPLE five

The device comprises a sensing device body 1, a main sensing device base 5 and a plurality of detachable sub sensing device bases, wherein as shown in figure 1, the sensing device body 1 is detachably arranged on the main sensing device base 5, and the sub sensing device bases are arranged at different positions, so that the use by a user is facilitated. The total sensing device base 5 comprises an optical receiving component, an infrared emitting component 22, a distance measuring component 13 and an infrared optical processing component 12. And laser emission assemblies 6 are respectively arranged on the sub-sensing device bases. The induction device body 1 is arranged in the mobile phone, and the total induction device base 5 is arranged on the small-sized sound box.

As shown in fig. 2, the optical receiving component can receive laser light and infrared light simultaneously, or receive laser light or infrared light separately. The optical receiving component comprises a color separation sheet 7, a plano-concave lens 8 with a small hole at the center and a hyperboloid convex lens 9 which is symmetrically arranged on an optical axis with the plano-concave lens 8, wherein the color separation sheet 7 is positioned on one side of the plano-concave lens 8 far away from the hyperboloid convex lens. Infrared rays and/or laser received by the optical receiving assembly are reflected by the reflecting mirror 11 and the rapid tilting mirror 10 and then converged into parallel light, the parallel light is emitted into one side of the plano-concave lens 8, which is far away from the color separation sheet 7, is refracted by the plano-concave lens 8 and is emitted into the hyperboloid convex mirror, and the parallel light passes through a small hole in the center of the plano-concave lens 8 and is emitted into the color separation sheet 7 under the reflection of the hyperboloid convex mirror. The infrared spectrum of the infrared ray penetrates through the color separation sheet 7 to enter the infrared optical processing component 12, and the laser enters the distance measuring component 13 after being reflected by the color separation sheet 7. The optical receiving assembly is used for receiving laser and infrared rays simultaneously, the laser receiving device and the infrared receiving device are integrated, the size of the sensing device is greatly reduced, the sensing device is suitable for the total sensing device bases 5 with different specifications, the structure is simple, and the maintenance work of workers is facilitated.

The laser emitting assembly 6 comprises a rotary drive mechanism 14, an integrated circuit and a 532nm laser. The laser can be triggered to emit laser by an external trigger signal. The laser comprises a laser head, a laser controller and a laser trigger. The laser head is integrated with a silicon PIN photodiode, and can inductively emit a main wave and directly output a main wave electric signal pulse. The laser head is connected with the laser controller through a cable, and the laser controller provides a laser power supply, temperature control and trigger control. The laser trigger is arranged at the joint of the induction device body 1 and the sub-induction device base. When the sensing device body 1 is arranged on the main sensing device base 5, the laser trigger sends out a trigger signal to trigger the laser control panel to start, and the laser head is triggered to emit laser at intervals.

As shown in fig. 3, the swing driving mechanism 14 includes a rotating shaft, a supporting frame, a driving motor, an enveloping worm 16, a worm wheel turntable 17 and a protective cover. The driving motors include a first driving motor 15 and a second driving motor. The first driving motor 15 is mounted at one end of the enveloping worm 16 and drives the enveloping worm 16 to rotate. The tooth surface of the enveloping worm 16 is meshed with the tooth surface of the worm wheel turntable 17, the first driving motor 15 drives the enveloping worm 16 to rotate around the central shaft of the enveloping worm, and the enveloping worm 16 drives the worm wheel turntable 17 to rotate. The axis of rotation passes and fixes the laser instrument, the support frame is located at the both ends of axis of rotation, the support frame is installed in the upper surface of worm wheel carousel 17, and first driving motor 15 rotates envelope worm 16, and envelope worm 16 drives worm wheel carousel 17 and support frame, laser instrument and rotates 360 degrees rotations. The second driving motor is connected with the rotating shaft, so that the laser device can rotate around the rotating shaft, and the laser direction emitted by the laser device can be adjusted. In this embodiment, a beam expanding and collimating lens is integrated inside the laser, so as to provide high-parallelism and low-divergence laser.

The tooth surface equation of the enveloping worm 16 is

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dfor working the angle of profile of the grinding wheel, r, of enveloping worm 16_dFor machining the grinding wheel radius of enveloping worm 16, S_aFor machining the width of the grinding wheel tip of the enveloping worm 16, β is the grinding wheel inclination angle for machining the enveloping worm 16,the angle of rotation of the worm.

There are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe angle theta.

Selecting one of the working regionsValue, then select one in the full tooth height rangeThe value of u, the variable θ is derived from the equation of the tooth surface of enveloping worm 16. Newton's iterative solution is performed on the tooth surface equation of enveloping worm 16: as can be judged from the actual conditions of machining, the value theta satisfying the tooth surface equation of the enveloping worm 16 is in the vicinity of 180 DEG, so that a set of tooth surface equations satisfying the enveloping worm 16 is obtained in the range of 170 DEG to 190 DEGValue ofWill obtainSubstitution intoIn the formula A point of contact on the enveloping worm 16 is obtained. Correspond to the same oneThe value of u is different in the range of full tooth height, different theta values can be contacted by successive conjugate condition equations, so that a plurality of contact points can be obtained, and the contact points are connected to form a contact line. Finally corresponding to differentThe values of the different contact lines are determined, which form the helicoid of the worm.

The failure modes of the enveloping worm 16 include both bulk failure and flank failure, and the bulk failure of the enveloping worm 16 is often due to severe shock or short term overload experienced during the drive, or relatively severe load concentrations along the line of contact. Tooth surface failures of the enveloping worm 16 include contact fatigue pitting, gluing, galling, breaking, and the like. The integral failure and the tooth surface failure of the enveloping worm 16 are closely related to the contact performance and the lubricating performance of the enveloping worm 16, so the performance of the enveloping worm 16 is triggered and evaluated from the contact performance and the lubricating performance of the enveloping worm 16.

The excellent lubricating property can reduce friction, reduce abrasion, reduce temperature rise, increase the gluing resistance of the enveloping worm 16 and improve the bearing capacity of the enveloping worm 16, thereby achieving the effect of prolonging the service life of the enveloping worm. Excellent lubricating performance is obtained, which is essentially to establish a lubricating oil film with a certain thickness between the worm and the worm wheel tooth surfaces, ensuring that the tooth surfaces can still be in a liquid lubricating environment or at least work in a semi-liquid lubricating environment under a great pressure.

Evaluation of the lubricating properties of enveloping worm 16: and (4) setting an oil film thickness geometric coefficient according to an elastic fluid dynamic pressure lubrication theory and a Darsen formula to evaluate the oil film thickness.

k_h＝v_n ^0.7/(K_12N ^0.43)

v_nIs the relative entrainment velocity, v_nCalculated by the following formulaWherein (v)₁)_o1And (v)₂)_o1The speed of the enveloping worm 16 and the worm wheel turntable 17 at the meshing point, (N)_o1Is the normal vector at any point on the instantaneous contact line of enveloping worm 16, | N | (N)_ξ ²+N_η ²)^0.5。

Further, since the oil film thickness at the roots of the meshing-end worm is the smallest, the oil film thickness at the roots of the meshing-end worm is selected to evaluate the performance of the enveloping worm 16.

The excellent contact performance means that the distribution of the contact lines on the enveloping worm 16 cannot be too wide or too narrow, and when the distribution of the contact lines cannot be too wide or too narrow. When the contact lines are distributed too widely, the contact lines at the working initial angles of the enveloping worm 16 are positioned outside the tooth surfaces of the enveloping worm 16, which shows that the number of meshing teeth between the enveloping worm 16 and the worm wheel turntable 17 is less. Conversely, when the contact lines are distributed too narrowly, the contact lines tend to be concentrated on the central symmetry plane of the worm wheel turntable 17, which results in the reduction of the strength of the tooth surface of the worm wheel turntable 17.

Evaluation of contact performance of enveloping worm 16: the contact performance evaluation value f (x) | | z is established by taking the contact point of the primary contact line corresponding to the working initial angle on the reference circle of the worm wheel turntable 17 as an object₁|-b₂/2|, wherein | z₁L is the distance from the specific primary contact point to the central symmetry plane of the worm wheel turntable 17, b₂The worm wheel turntable 17 has the width of teeth.

And optimizing a tooth surface equation of the enveloping worm 16 by using optimization software to ensure that the geometrical coefficient of the thickness of the oil film at the tooth root of the worm at the meshing end is maximum and the contact performance evaluation value is minimum.

Taking the enveloping worm 16 with the center distance of 80mm, the transmission ratio of 40 and the number of worm heads of 1 to fit the tooth surface equation of the enveloping worm 16, and obtaining the key geometric parameters and the size of the enveloping worm 16 after optimization: the center distance is 80mm, the transmission ratio is 40, the number of worm heads is 1, the diameter of a worm reference circle is 28.56mm, the tooth crest height is 3.026mm, the tooth root height is 3.198mm, the full tooth height is 4.26mm, the tooth crest gap is 0.516mm, the radius of a worm tooth root circle is 23.157mm, the radius of a worm tooth crest arc is 30.258mm, the radius of a worm tooth root arc is 69.236mm, the lead angle of a worm throat reference circle is 6.35 degrees, the tooth pitch angle is 8 degrees, the diameter of a main base circle is 45.3mm, the worm surrounds a worm wheel turntable 17 and has 5 teeth, the half working angle of the worm is 18.625 degrees, the working length of the worm is 38.652.

The oil film thickness geometric coefficient of the present example was 11.26, and the contact property evaluation value was 3.29.

Divide the starting button that is equipped with the start laser instrument on the induction system base respectively, when induction system body 1 placed on dividing the induction system base, the starting button was pressed, and the laser instrument starts.

Before the induction device is used, after the base of the sub-induction device is fixed, the laser is adjusted to rotate up and down and left and right until laser emitted by the laser is aligned with the optical receiving assembly. Be equipped with the pilot lamp on total induction system base 5, the pilot lamp is used for instructing optical receiving component whether to receive laser signal. The integrated circuit has a memory function and can store the angle of the laser corresponding to the optical receiving component after the base of the sub-sensing device is fixed at a certain position.

As shown in fig. 4, the distance measuring assembly 13 includes a collimating mirror, a narrow-band filter 18, a signal shaping circuit 20, a pulse signal detector 19, and a time measuring chip 21, the laser reflected by the dichroic filter 7 passes through the collimating mirror, the narrow-band filter 18, the pulse signal detector 19, and the signal shaping circuit 20 in sequence, and the collimating mirror and the narrow-band filter 18 perform filtering processing on the laser spectrum to reduce background noise. The pulse signal detector 19 is an avalanche diode detector or a photomultiplier detector. When the pulse signal detector 19 corresponds to a target photon, the pulse signal detector 19 outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit 20 and then output to the time measurement chip 21, the time measurement chip finally measures the flight time of the laser from the sensing device body 1 to the total sensing device base 5 by accurately measuring and timing the occurrence time of the pulse signal which emits the laser at regular intervals, further, the distance between the sensing device body 1 and the total sensing device base 5 is obtained, the obtained data of the distance is transmitted to the infrared emission assembly 22, and the infrared emission assembly 22 adjusts the focal length according to the distance between the sensing device body 1 and the total sensing device base 5.

The infrared emission component 22 comprises a continuous zooming structure and an infrared emission diode, wherein the continuous zooming structure comprises a cylindrical shell, a zoom lens, a fine adjustment lens, a compensation lens, a zoom lens frame, a compensation lens frame, a fine adjustment lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacer ring. The middle section of cylinder casing is equipped with two sets of four symmetrical cam grooves, is first cam groove and second cam groove respectively.

The slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is the focal length of the variable magnification group, y and x are the lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively.

The zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings.

The variable power lens group comprises a front variable power lens and a rear variable power lens, wherein in the embodiment, the front variable power lens is an orthodontic convex lens, and the rear variable power lens is a biconcave lens. The front zoom lens is fixed at the foremost end of the cylindrical shell, and the rear zoom lens is fixedly connected with the second cam groove through the guide nail after being installed on the lens frame.

In this embodiment, the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being installed on the lens frame.

In this embodiment, the fine adjustment lens assembly is an orthodontic convex lens, and the fine adjustment lens assembly frame holds the fine adjustment lens assembly and is disposed at one end of the cylindrical housing. The motor provides lens motion driving force, is connected with the zoom group lens frame and drives the zoom group lens frame to move. The inner surface of the cylindrical shell and the contact surface of the fine adjustment lens frame are provided with fine adjustment gear rings along the circumferential direction, the fine adjustment gear rings are adhered to the fine adjustment lens frame, the fine adjustment gear rings can rotate relative to the cylindrical shell under the driving of a motor, and the fine adjustment gear rings can adjust the distance between the fine adjustment lens and other lenses.

The continuous zooming structure can ensure that the optical system can stably run in the whole zooming process while realizing quadruple infrared continuous zooming, and can not generate larger pressure on the cam, abrade the cam curve and influence the precision of the optical system.

The infrared emitting diodes are sequentially arranged and arranged on one side, away from the compensation group lens, of the fine adjustment group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body 1 and the total induction device base 5.

The infrared optical processing assembly 12 includes an infrared receiving tube. When the people was located induction system body 1 before, the infrared ray of infrared emission subassembly 22 transmission was sheltered from the after reflection to the optical receiving subassembly by the human body, infrared receiving tube receives the infrared spectrum after the output signal of telecommunication, small-size audio amplifier broadcast music.

The method comprises the following steps of carrying out static infrared target test, fixing a total induction device base 5, installing a branch induction device base at the positions 520cm, 50cm and 80cm away from the total induction device base, placing an induction device body 1 on the branch induction device base, arranging a swinging device at one side of the induction device body 1, arranging a simulation object at one end of the swinging device, testing the sensitivity of the induction device by moving the simulation object to the position 20cm below the induction device body 1 at intervals, and finding that the success rate is 97.6%, 98.1% and 97.3% after testing.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

1. The infrared remote control device is realized based on an Android system and is characterized by comprising a processor and an infrared emitting diode, wherein the processor comprises a plurality of pins, the pins are connected with the infrared emitting diode, the processor is used for sequentially placing the pins at a high level or a low level according to a plurality of preset coding modes when receiving a test instruction, so that a series of coded infrared remote control signals which correspond to the coding modes one by one are generated, and the series of coded infrared remote control signals are continuously sent to the electronic device through the infrared emitting diode, and comprise remote control signals for controlling the electronic device to execute a plurality of different operations.

2. The Android system-based infrared remote control device of claim 1, wherein the processor is a central processing unit or a microprocessor.

3. The Android system-based infrared remote control device as claimed in claim 1, wherein each coded infrared remote control signal is obtained by modulating an intermittent pulse train signal composed of a binary code "1" and a binary code "0" with a sine wave of a specific frequency.

4. The Android system-based infrared remote control device for achieving the infrared remote control function is characterized by comprising a sensing device body, a main sensing device base and a plurality of detachable sub sensing device bases, wherein the sensing device body is detachably arranged on the main sensing device base, and the sub sensing device bases are arranged at different positions; the total induction device base comprises an optical receiving assembly, an infrared transmitting assembly, a distance measuring assembly and an infrared optical processing assembly; the sub-sensing device bases are respectively provided with a laser emitting assembly; the optical receiving component comprises a color separation sheet, a plano-concave lens with a small hole at the center and a hyperboloid convex lens symmetrically arranged on an optical axis with the plano-concave lens, wherein the color separation sheet is positioned on one side of the plano-concave lens, which is far away from the hyperboloid convex lens; infrared rays and/or laser received by the optical receiving assembly are reflected by the reflecting mirror and the rapid tilting mirror and then converged into parallel light, the parallel light is emitted into one side of the plano-concave lens, which is far away from the color separation sheet, is refracted by the plano-concave lens and then is emitted into the hyperboloid convex mirror, and is emitted into the color separation sheet through a small hole in the center of the plano-concave lens under the reflection of the hyperboloid convex mirror, the infrared spectrum of the infrared rays penetrates through the color separation sheet and enters the infrared optical processing assembly, and the laser is reflected by the color separation sheet and enters the distance measuring assembly; the laser emission assembly comprises a rotary driving mechanism, an integrated circuit and a 532nm laser, the laser comprises a laser head, a laser controller and a laser trigger, the laser head is integrated with a silicon PIN photodiode and can sense and emit a main wave and directly output a main wave electric signal pulse, the laser head is connected with the laser controller through a cable, the laser controller provides a laser power supply, temperature control and trigger control, the laser trigger is arranged at the joint of the sensing device body and the sub-sensing device base, and when the sensing device body is arranged on the main sensing device base, the laser trigger emits a trigger signal to trigger the laser control panel to start and trigger the laser head to emit laser at intervals; the rotary driving mechanism comprises a rotating shaft, a supporting frame, a driving motor, an enveloping worm, a worm wheel turntable and a protective cover, the driving motor comprises a first driving motor and a second driving motor, the first driving motor is arranged at one end of the enveloping worm and drives the enveloping worm to rotate, the tooth surface of the enveloping worm is meshed with the tooth surface of the worm wheel turntable, the first driving motor drives the enveloping worm to rotate around the central shaft of the enveloping worm, the enveloping worm drives the worm wheel turntable to rotate, the rotating shaft penetrates through and fixes the laser, two ends of the rotating shaft are arranged on the supporting frame, the support frame is arranged on the upper surface of the worm wheel turntable, the first driving motor rotates the enveloping worm, the enveloping worm drives the worm wheel turntable, the support frame and the laser to rotate for 360 degrees, and the second driving motor is connected with the rotating shaft, so that the laser can rotate around the rotating shaft, and the laser direction emitted by the laser machine is adjusted; the sub-sensing device base is respectively provided with a starting button for starting the laser, and when the sensing device body is placed on the sub-sensing device base, the starting button is pressed down, and the laser is started; the distance measurement assembly comprises a collimating mirror, a narrow-band optical filter, a signal shaping circuit, a pulse signal detector and a time measurement chip, laser reflected by the color separation sheet sequentially passes through the collimating mirror, the narrow-band optical filter, the pulse signal detector and the signal shaping circuit, and the collimating mirror and the narrow-band optical filter perform filtering processing on a laser spectrum to reduce background noise; when the pulse signal detector corresponds to a target photon, the pulse signal detector outputs a corresponding pulse signal, the pulse signal is processed by the signal shaping circuit and then output to the time measuring chip, the flight time of the laser from the induction device body to the main induction device base is finally measured through the accurate measurement timing of the pulse signal generating time of the laser emitted at regular intervals, the distance between the induction device body and the main induction device base is further obtained, the obtained data of the distance is transmitted to the infrared emission assembly, and the infrared emission assembly adjusts the focal length according to the distance between the induction device body and the main induction device base; the infrared emission assembly comprises a continuous zooming structure and an infrared emission diode, the continuous zooming structure comprises a cylindrical shell, a zoom group lens, a fine adjustment group lens, a compensation group lens, a zoom group lens frame, a compensation group lens frame, a fine adjustment group lens frame, a motor, a fine adjustment gear ring and a fine adjustment spacing ring, and two groups of four symmetrical cam grooves, namely a first cam groove and a second cam groove, are arranged at the middle section of the cylindrical shell;

the slope of the cam curve of the first cam groove and the corresponding slope of the cam curve of the second cam groove satisfy the following formula:

$K_y=\frac{K_x(y-l_2^{\′}+f_2^{\′})}{2y-b}$

wherein, K_yThe first cam groove corresponds to the slope of the zoom cam curve, K_xY is the slope of the zoom cam curve corresponding to the second cam groove, and l 'is the lift-off distance of the zoom cam curve corresponding to the first cam groove'₂＝f′₁-(d+y-x)，f′₂Is a zoom groupY and x are lift distances of the first cam groove and the second cam groove corresponding to the zoom cam curve, respectively, and b ═ l'₂-f′₁) -d + x, d is the distance of the two lenses provided in the first cam groove and the second cam groove, respectively; the zoom lens, the compensation lens and the fine adjustment lens are sequentially arranged along an optical axis, and part of the zoom lens and the fine adjustment lens are respectively arranged at two ends of the shell through lens pressing rings; the motor provides lens motion driving force, is connected with the zoom group lens frame and drives the zoom group lens frame to move; a fine adjustment gear ring is arranged on the contact surface of the inner surface of the cylindrical shell and the fine adjustment lens frame along the circumferential direction, the fine adjustment gear ring is adhered to the fine adjustment lens frame, the fine adjustment gear ring can rotate relative to the cylindrical shell under the driving of a motor, and the distance between the fine adjustment lens and other lenses can be adjusted by rotating the fine adjustment gear ring; the infrared emitting diodes are sequentially arranged and arranged on one side of the fine adjustment group lens far away from the compensation group lens, and the starting power of the infrared emitting diodes is adjusted according to the distance between the induction device body and the base of the total induction device; the infrared optical processing assembly comprises an infrared receiving tube, when a person is located in the induction area of the induction device body, infrared rays emitted by the infrared emitting assembly are shielded by the person and then reflected to the optical receiving assembly, the infrared receiving tube receives infrared spectra and then outputs electric signals, and the miniature loudspeaker box plays music.

5. The Android system-based infrared remote control device of claim 4, wherein the enveloping worm has a tooth surface equation of

Wherein, A＝-cosα_dcosθ，B＝-cosα_dsinβsinθ±sinα_dcosβ，C＝-cosα_dcosβsinθ±sinα_dsinβ,D＝r_dcosθ-a₀，E＝r_dsinβsinθ±0.5S_acosβ,F＝-r_dcosβsinθ±0.5S_acosβ,n_x＝sinα_dcosθ,n_y＝sinαsinθsinβ+cosα_dcosβ，n_z＝-sinα_dsinθcosβ+cosα_dsinβ，α_dfor working the angle of profile of grinding wheel, r, of enveloping worm_dFor working the radius of the grinding wheel enveloping the worm, S_aThe top width of the grinding wheel for processing the enveloping worm is β the angle of inclination of the grinding wheel for processing the enveloping worm, is the turning angle of the worm screw,

there are three variables to be determined in the formula: tool apron rotation angle in machining processThe distance u between the meshing point P and the top of the grinding wheel along the side surface direction of the grinding wheel, and the section i and the section of the grinding wheel shaft where the meshing point P is located_aThe included angle theta; obtaining a set of tooth surface equations satisfying enveloping worm in the range of 170-190 DEGValue ofWill obtainSubstitution intoIn the formula One contact point on the enveloping worm corresponding to the sameTaking different values of u in the range of full tooth height, contacting different theta values by successive conjugate conditional equations to obtain multiple contact points, connecting the contact points to form a contact line corresponding to different valuesThe values of the different contact lines are determined, which form the helicoid of the worm.

6. The Android system-based infrared remote control device for achieving the infrared remote control of the Android system of claim 2, wherein an enveloping worm with a center distance of 75mm, a transmission ratio of 45 and a worm head number of 1 is fitted to a tooth surface equation of the enveloping worm, and key geometric parameters and dimensions of the enveloping worm are obtained after optimization: the center distance is 75mm, the transmission ratio is 45, the number of worm heads is 1, the diameter of a worm reference circle is 28.36mm, the tooth crest height is 2.571mm, the tooth root height is 2.846mm, the full tooth height is 5.01mm, the tooth crest gap is 0.716mm, the radius of a worm tooth root circle is 21.605mm, the radius of a worm tooth crest arc is 31.786m, the radius of a worm tooth root arc is 65.779mm, the lead angle of a worm throat reference circle is 6.32 degrees, the tooth pitch angle is 9 degrees, the diameter of a main base circle is 48.69mm, the number of teeth of a worm wheel surrounding is 6.5, the half working angle of the worm is 17.311 degrees, the working length of the worm is 37.529.

7. The Android system-based infrared remote control device as claimed in claim 4, wherein the variable power lens group includes a front variable power lens and a rear variable power lens, the front variable power lens is an orthodontic convex lens, the rear variable power lens is a biconcave lens, the front variable power lens is fixed to the foremost end of the cylindrical shell, and the rear variable power lens is fixedly connected to the second cam groove through a guide pin after being mounted on the lens frame.

8. The Android system-based infrared remote control device as claimed in claim 6, wherein the compensation group lens is a plane mirror, and the compensation group lens is fixedly connected with the first cam groove through a guide pin after being mounted on the lens frame.

9. The Android system-based infrared remote control device as claimed in claim 7, wherein the fine-tuning group lens is an orthodontic convex lens, and the fine-tuning group lens frame holds the fine-tuning group lens and is disposed at one end of the cylindrical shell.