WO2017118138A1 - Triboeletricity based pneumatic sensor, airflow processing apparatus, and intelligent pneumatic sensor system - Google Patents

Abstract

A triboeletricity based pneumatic sensor (100), comprising: a housing (110), wherein an accommodating cavity (111) is formed in the housing (110), an air inlet (112) is formed on the side wall thereof, an air outlet (113) is formed on the bottom wall thereof, and the air inlet (112) and the air outlet (113) are in communication with the accommodating cavity (111) to form an airflow path; a vibration film component (120) with both ends being fixedly provided in the accommodating cavity (111) in the housing (110), wherein vibration gaps are respectively formed between the vibration film component (120) and an electrode component (140) and between the vibration film component (120) and the bottom wall of the housing (110), and the vibration film component (120) is driven by airflow in the accommodating cavity (111) to reciprocately vibrate relative to the electrode component (140) and the bottom wall of the housing (110); and the electrode component (140) that serves as a signal output end of the pneumatic sensor (100) and that is provided opposite to the vibration film component (120), wherein the reciprocately vibrating vibration film component (120) rubs against the electrode component (140) and/or the bottom wall of the housing (110), to generate a sensing electric signal that is outputted by the electrode component (140).

Description

Pneumatic sensor based on friction power generation, airflow processing device and intelligent pneumatic sensor system

Cross-reference to related applications

This application is required to be submitted to the Chinese Patent Office on January 8, 2016, the application number is 201610012140.X, the Chinese patent application entitled "Pneumatic Sensor Based on Friction Generation, Airflow Treatment Device and Electronic Cigarette" and on April 8, 2016 The priority of the Chinese Patent Application No. 201620291760.7, entitled "Intelligent Pneumatic Sensor System", is incorporated herein by reference.

Technical field

The invention relates to the field of friction power generation, in particular to a pneumatic sensor based on friction power generation, a gas flow processing device and an intelligent pneumatic sensor system.

Background technique

Electronic cigarettes, also known as electronic cigarettes, virtual cigarettes, have a similar appearance and similar taste to traditional cigarettes, and can also smoke like traditional cigarettes. In addition, some electronic cigarettes can also add flavors such as mint to various flavors according to the user's personal preference.

With the continuous development of people's living needs, because e-cigarettes do not have other harmful components such as tar and aerosols in traditional cigarettes, more and more people choose to use electronic cigarettes instead of traditional cigarettes. Some people also use e-cigarettes to quit smoking.

However, the existing sensor structure and manufacturing process applied in the electronic cigarette are complicated, the production cost is high, and the external signal processing module is also required to be high, and it is also prone to false triggering by external vibration, and the working stability is poor.

The sensor can convert the detected information into an electrical signal or other desired form output according to a certain rule. In the prior art, the conventional capacitive pneumatic sensor can only monitor whether there is airflow through the change of the capacitance value caused by the negative pressure change, and there is no way to monitor the gas of different flow rates or respond differently according to the monitoring result. And capacitive pneumatic sensor detection is more complicated, output Non-linear, the sensitivity of the capacitor, the measurement accuracy are susceptible, unstable, and the connection circuit is more complicated.

Therefore, the prior art lacks an intelligent pneumatic sensor system capable of accurately and stably reflecting the gas flow rate and achieving a corresponding function according to the gas flow rate.

Summary of the invention

An object of the present invention is to provide a frictional power generation based pneumatic sensor, a gas flow processing device and an electronic cigarette which have a simple structure, a simple manufacturing process, good anti-interference performance and high stability.

In order to achieve the above object, a specific technical solution of a frictional power generation based pneumatic sensor, a gas flow processing device and an electronic cigarette according to the present invention is:

A pneumatic sensor based on friction power generation includes: a casing having a receiving chamber formed therein, an air inlet formed on the side wall, an air outlet formed on the bottom wall, and the air inlet and the air outlet are respectively accommodated The chambers are in communication to form an air flow passage; the diaphragm assembly is fixedly disposed at two ends thereof in the accommodating chamber inside the outer casing, and a vibration gap is formed between the electrode assembly and the bottom wall of the outer casing, and the accommodating chamber is formed in the accommodating chamber The diaphragm assembly is reciprocally vibrated with respect to the electrode assembly and the bottom wall of the outer casing by the internal air flow; the electrode assembly, which is the signal output end of the pneumatic sensor, is located in the accommodating chamber inside the outer casing, opposite to the diaphragm assembly. It is provided that the reciprocating vibrating diaphragm assembly rubs against the electrode assembly and/or the bottom wall of the outer casing to generate a sensing electrical signal and is output by the electrode assembly.

An airflow processing device comprising the above friction power generation based pneumatic sensor and a signal processing module, wherein the frictional power generation based pneumatic sensor is configured to sense the passage of the airflow and convert the mechanical energy acting on the airflow into the sensing electrical energy A signal processing module is connected to the friction sensor-based pneumatic sensor for receiving and processing the sensing electrical signal, and outputting the control electrical signal according to the sensing electrical signal.

An electronic cigarette includes the above airflow processing device and a tobacco rod, an atomizer, and a power supply device.

The frictional power generation based pneumatic sensor, the airflow processing device and the electronic cigarette of the invention have the following advantages:

1) The frictional power generation-based pneumatic sensor of the present invention has a simple structure and a simple manufacturing process, and has low manufacturing cost, and only needs to directly mount the electrode assembly and the diaphragm assembly into the outer casing, and is more than the pneumatic sensor in the prior art. Suitable for industrial production.

2) The frictional power generation based pneumatic sensor of the invention has low requirements on the signal processing module, and can easily distinguish the electrical signals generated by the airflow and the vibration interference by the design of the signal processing module, thereby effectively preventing the false triggering of the vibration interference and improving The stability of the working of the pneumatic sensor.

3) In the friction sensor-based pneumatic sensor of the present invention, the two ends of the diaphragm assembly are fixedly arranged, which is convenient for production and manufacture, and improves the stability of the product and ensures the use effect.

4) The frictional power generation-based pneumatic sensor of the invention reduces the manufacturing cost of the electronic cigarette, simplifies the manufacturing process of the electronic cigarette, and effectively prevents the false triggering of the vibration interference, thereby improving the stability of the electronic cigarette operation.

Another object of the present invention is to provide an intelligent pneumatic sensor system for collecting, analyzing, and processing an AC electric signal reflecting a gas flow rate based on a frictional power generation-based pneumatic sensor, so as to output the output. The control signals are more accurate and stable, thus achieving the functions of different load positions.

An intelligent pneumatic sensor system provided by the invention comprises: a friction sensor based pneumatic sensor, a signal acquisition unit connected with a friction power generation based pneumatic sensor, a signal control unit connected to the signal acquisition unit, and a trigger connected to the signal control unit Circuit; a frictional power-based pneumatic sensor is used to output an alternating current signal reflecting a gas flow rate when a gas flows; a signal acquisition unit is used to collect and process an alternating current signal output by a frictional power-based pneumatic sensor; Comparing the electrical signal processed by the signal acquisition unit with a preset step range to obtain a control signal; the trigger circuit has a plurality of load gear positions, the trigger circuit is configured to receive the control signal, and select a communication gear position according to the control signal, Start the function corresponding to the load gear.

According to another aspect of the invention, there is also provided a smart microphone comprising a smart pneumatic sensor system as described above.

According to still another aspect of the present invention, a drug nebulizer is provided, comprising the smart pneumatic sensor system as described above.

The intelligent pneumatic sensor system provided by the invention compares the alternating current signal outputted by the frictional power generation based pneumatic sensor with the preset step range to obtain a control signal, and can select and connect the corresponding load file according to the control signal. Bit, start the corresponding function. The intelligent pneumatic sensor system provided by the invention can set a plurality of preset step ranges and set multiple loads The gear position makes the output control signal more accurate and stable.

BRIEF abstract

Various other advantages and benefits will become apparent to those skilled in the art from a The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting. Throughout the drawings, the same reference numerals are used to refer to the same parts. In the drawing:

Figure 1 is a perspective view of a first embodiment of a frictional power generation based pneumatic sensor of the present invention;

Figure 2 is a cross-sectional view of the frictional power generation based pneumatic sensor of Figure 1;

3 is a split view of the frictional power generation based pneumatic sensor of FIG. 1;

4 is a schematic structural view of a diaphragm unit in the friction power generation-based pneumatic sensor of FIG. 1;

Figure 5 is a split view of a second embodiment of a frictional power generation based pneumatic sensor of the present invention;

Figure 6 is a schematic structural view of an electronic cigarette of the present invention;

Figure 7 is a functional block diagram of an embodiment of a smart pneumatic sensor system provided by the present invention;

FIG. 8 is a block diagram showing the structure of the signal acquisition unit of FIG. 7.

Preferred embodiment of the invention

In order to better understand the object, structure and function of the present invention, a frictional power generation based pneumatic sensor, a gas flow processing device and an electronic cigarette according to the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 4, it is a first embodiment of a frictional power generation based pneumatic sensor of the present invention. In this embodiment, the friction power generation-based pneumatic sensor 100 includes a housing 110, and a diaphragm assembly 120, a first friction film assembly 130, and an electrode assembly 140, which are sequentially disposed in the housing 110, wherein the diaphragm assembly 120 and the first Friction of a friction film assembly 130 and/or diaphragm assembly 120 with the bottom wall of the housing 110 produces a sense electrical signal.

Further, the outer casing 110 has a cylindrical structure, and the inner portion of the outer casing 110 is formed with a accommodating chamber 111. An air inlet 112 is formed on a sidewall of the outer casing 110, and an air outlet 113 is formed on the bottom wall, and the air inlet 112 and the air outlet 113 on the outer casing 110 communicate with the accommodation chamber 111 inside the outer casing 110, respectively. An air flow path is formed through the inside and outside of the outer casing 110. It should be noted that the outer casing in this embodiment is preferably a cylindrical structure, but may be provided in other shapes such as a square or the like according to actual needs. In addition, the size, shape, and number of the air inlets 112 and the air outlets 113 on the outer casing 110 can be set according to actual needs, and are not specifically limited herein.

Further, the diaphragm assembly 120 is a flexible component, preferably in the shape of a strip, and the elongated diaphragm assembly 120 is located in the accommodating chamber 111 inside the housing 110, and is fixedly disposed at both ends. Wherein, the diaphragm assembly 120 is respectively formed with a vibration gap between the first friction film assembly 130 and the bottom wall of the outer casing 110, and the diaphragm assembly 120 is movable relative to the first friction under the driving of the airflow inside the accommodating chamber 111. The membrane assembly 130 and the bottom wall of the outer casing 110 reciprocally vibrate to frictionally contact the bottom wall of the first friction film assembly 130 and/or the outer casing 110 to produce a sensing electrical signal.

Specifically, a diaphragm ring 121, a first washer 122, and a second washer 123 are disposed in the accommodating chamber 111 inside the outer casing 110. The diaphragm ring 121 is annular, and the two ends of the diaphragm assembly 120 are fixedly disposed on the diaphragm ring 121, and an air flow path is formed between the side of the diaphragm assembly 120 and the diaphragm ring 121. The diaphragm assembly 120 is reciprocally vibrated on the diaphragm ring 121 with respect to the first friction diaphragm assembly 130 and the bottom wall of the outer casing 110, driven by the air flow inside the chamber 111.

Further, the first gasket 122 is a notched ring between the diaphragm ring 121 and the first friction film assembly 130 to form a vibration gap between the diaphragm assembly 120 and the first friction film assembly 130, wherein the ring The notch on the first gasket 122 corresponds to the air inlet 112 on the side wall of the outer casing 110 so that the external airflow can enter the interior of the outer casing 110 through the air inlet 112 on the side wall of the outer casing 110 and the notch on the first gasket 122. The chamber 111 is specifically in the chamber between the diaphragm assembly 120 and the first friction film assembly 130 (i.e., in the vibration gap between the diaphragm assembly 120 and the first friction film assembly 130).

Further, the second gasket 123 is also a notched ring between the diaphragm ring 121 and the bottom wall of the outer casing 110 to form a vibration gap between the diaphragm assembly 120 and the bottom wall of the outer casing 110, wherein the ring The notch on the second washer 123 also corresponds to the air inlet 112 on the side wall of the outer casing 110, so that the external airflow enters the accommodating cavity inside the outer casing 110 through the air inlet 112 on the side wall of the outer casing 110 and the notch on the second gasket 123. In the chamber 111, specifically, the bottom wall of the diaphragm assembly 120 and the outer casing 110 Between the chambers (ie, in the vibration gap between the diaphragm assembly 120 and the bottom wall of the outer casing 110).

Preferably, in order to ensure the friction effect between the diaphragm assembly 120 and the first friction film assembly 130, the thickness of the first gasket 122 is smaller than the thickness of the second gasket 123, so that the diaphragm assembly 120 and the first friction film assembly The vibration gap between 130 is smaller than the vibration gap between the diaphragm assembly 120 and the bottom wall of the outer casing 110. At the same time, the diaphragm assembly 120 on the diaphragm ring 121 may be arched, and the top of the arched diaphragm assembly 120 faces the first friction film assembly 130 to further enhance the diaphragm assembly 120 and the first friction film. The friction effect between the components 130.

For example, in a specific example, the diameter of the outer casing 110 is set to 4 to 20 mm, the thickness of the first gasket 122 is set to 0.1 to 1 mm, and the thickness of the second gasket 123 is set to 0.3 to 1 mm, and the diaphragm assembly 120 is set. The arch curvature is set to 0.3 to 1.5 mm to optimize the friction between the diaphragm assembly 120 and the first friction film assembly 130. It should be noted that the size of the outer casing 110, the thickness of the first gasket 122, the thickness of the second gasket 123, and the arcuate curvature of the diaphragm assembly 120 can be set according to the needs of those skilled in the art, here Not limited.

Alternatively, the diaphragm ring 121, the first washer 122, and the second washer 123 may not be disposed in this embodiment, but the diaphragm assembly 120 may be directly disposed on the sidewall of the outer casing 110, such as the diaphragm assembly 120. The two ends are fixedly connected to the side wall of the outer casing 110 respectively, and the vibration gap between the diaphragm assembly 120 and the first friction film assembly 130 and the bottom wall of the outer casing 110 passes through the end of the diaphragm assembly 120 and the side wall of the outer casing 110. The specific connection location setting.

In this embodiment, the first friction film assembly 130 is fixedly disposed on the electrode assembly 140, and the diaphragm assembly 120 rubs against each other to generate a sensing electrical signal, wherein the material of the diaphragm assembly 120 is preferably polyvinylidene fluoride (PVDF). The material of the first friction film assembly 130 is preferably polyethylene terephthalate (PET). Of course, the materials of the diaphragm assembly 120 and the first friction film assembly 130 may also be selected from the following materials as needed: polyethylene plastic, polypropylene plastic, polyvinyl chloride, polyperfluoroethylene propylene, chlorosulfonated polyethylene, and four. Fluoroethylene-ethylene copolymer, polychlorotrifluoroethylene, polytetrafluoroethylene, polystyrene, chlorinated polyether, polyphenylene sulfide, ethylene-vinyl acetate copolymer, polyimide film, aniline formaldehyde resin film, Polyoxymethylene film, ethyl cellulose film, polyamide film, melamine formaldehyde film, polyethylene glycol succinate film, cellulose film, cellulose acetate film, polyethylene adipate film, poly a diallyl phthalate film, a fiber (recycled) sponge film, a polyurethane elastomer film, a styrene propylene copolymer film, a styrene butadiene copolymer film, Rayon film, polymethyl methacrylate film, polyvinyl alcohol film, polyisobutylene film, polyethylene terephthalate film, polyvinyl butyral film, formaldehyde phenol polycondensate film, neoprene film Butadiene propylene copolymer film, natural rubber film, butyl rubber film, nitrile rubber film, hydrogenated nitrile film, polyacrylonitrile film, acrylonitrile vinyl chloride copolymer film, silicone rubber film, EPDM rubber Film, styrene butadiene rubber film, isoprene rubber film, butadiene rubber film or fluororubber film.

In addition, it should be noted that because different substances cause the work function to be separated from the surface of the original object, when the two substances with different electrostatic sequences are in contact or separated, the surface of the material with small work function loses electrons. The positively charged, so that the sensing electrical signal can be output, so when the material is selected, the material selected by the first friction film assembly 130 and the material selected by the diaphragm assembly 120 should be ordered differently.

Further, the electrode assembly 140 is a signal output end of the pneumatic sensor, wherein the material of the electrode assembly 140 may be a metal or a conductive metal oxide. In addition, the material of the outer casing 110 may be a conductive material or a non-conductive material; when the material of the outer casing 110 is a conductive material, it is necessary to ensure that the electrode assembly 140 and the outer casing 110 do not contact each other, for example, the insulating electrode can be insulated by providing an insulating layer. The contact portion of the component 140 with the outer casing 110; when the outer casing 110 is a metal conductive material, it can be used not only as the two signal output ends of the pneumatic sensor together with the electrode assembly 140, but also can shield the effect and prevent external electromagnetic signal interference. When the material of the outer casing 110 is a non-conductive material, in order to prevent the interference of external electromagnetic signals, the shielding effect is required, and the metal shielding layer is also coated on the outer side of the outer casing 110.

Further, the principle of the frictional power generation-based pneumatic sensor of the present embodiment will be briefly described below with reference to FIG. 1 to FIG. 4: the airflow flows into the accommodating chamber 111 from the air inlet 112 on the side wall of the outer casing 110 (specifically, through the outer casing The air inlet 112 on the sidewall of the 110 and the notch on the first gasket 122 flow into the chamber between the diaphragm assembly 120 and the first friction film assembly 130; through the air inlet 112 and the second on the side wall of the housing 110 A notch in the gasket 123 flows into the chamber between the diaphragm assembly 120 and the bottom wall of the outer casing 110), and flows out of the accommodating chamber 111 from the air outlet 113 on the bottom wall of the outer casing 110, thereby being available in the outer casing 110. Eddy currents are generated in the internal accommodating chamber 111. Under the action of the eddy current inside the accommodating chamber 111, the diaphragm assembly 120 is reciprocally vibrated on the diaphragm ring 121 with respect to the bottom walls of the first friction film assembly 130 and the outer casing 110, and with the first friction film assembly 130 and / or outside The bottom wall of the shell 110 contacts the friction to generate a sensing electrical signal that can be output by the electrode assembly 140.

As shown in FIG. 5, it is a second embodiment of the friction power generation based pneumatic sensor of the present invention. The first friction film assembly 130 is absent in this embodiment as compared to the first embodiment described above.

Specifically, in this embodiment, the friction power generation-based pneumatic sensor 200 includes a housing 210, and a diaphragm assembly 220 and an electrode assembly 240 sequentially disposed in the housing 210, wherein the diaphragm assembly 220 and the electrode assembly 240 and / or the bottom wall of the outer casing 210 rubbing against each other to generate a sensing electrical signal. Thereby, under the action of the eddy current inside the accommodating chamber 211, the diaphragm assembly 220 is reciprocally vibrated on the diaphragm ring 221 with respect to the electrode assembly 240 and the bottom wall of the outer casing 210, and with the electrode assembly 240 and/or the outer casing. The bottom wall of the 110 contacts the friction to generate a sensing electrical signal that can be output by the electrode assembly 240.

In addition, other specific structures and principles in this embodiment are similar to the above-described first embodiment, and are not described again.

The friction power generation based pneumatic sensor of the present invention also has a third embodiment. Compared with the first embodiment and the second embodiment described above, the inner side of the bottom wall of the casing is provided with the second friction film assembly in this embodiment.

Specifically, in this embodiment, the friction power generation-based pneumatic sensor includes: an outer casing, and a second friction film assembly, a diaphragm assembly, a first friction film assembly, and sequentially disposed in the outer casing, and the first embodiment. An electrode assembly, wherein the diaphragm assembly is frictioned with the first friction film assembly and/or the second friction film assembly, respectively, to generate a sensing electrical signal. Thereby, under the action of the eddy current inside the accommodating chamber, the diaphragm assembly is reciprocally vibrated on the diaphragm ring with respect to the first friction film assembly and the second friction film assembly, and respectively with the first friction film assembly and/or Or the second friction film assembly contacts the friction to generate a sensing electrical signal, and the generated sensing electrical signal can be output by the electrode assembly.

Or, in comparison with the second embodiment, the frictional power generation-based pneumatic sensor includes: a housing, and a second friction film assembly, a diaphragm assembly, and an electrode assembly sequentially disposed in the housing, wherein the diaphragm The components are rubbed against the electrode assembly and/or the second friction film assembly, respectively, to generate a sensing electrical signal. Thereby, under the action of the eddy current inside the accommodating chamber, the diaphragm assembly can reciprocate on the diaphragm ring with respect to the electrode assembly and the second friction film assembly, and is in contact with the electrode assembly and/or the second friction film assembly. Rubbing to generate a sensing electrical signal, the resulting sensing electrical signal can be an electrode assembly Output.

Wherein, the second friction film assembly is provided with at least one air hole corresponding to the air outlet on the bottom wall of the outer casing to facilitate gas flow. In addition, other specific structures and principles in this embodiment are similar to the above-described first embodiment and second embodiment, and are not described again.

The friction power generation based pneumatic sensor of the present invention also has a fourth embodiment. In contrast to the first embodiment and the second embodiment described above, in this embodiment, a flexible electrode is disposed on a side of the diaphragm assembly corresponding to the bottom wall of the housing.

Specifically, in this embodiment, the friction power generation-based pneumatic sensor includes: a housing, and a flexible electrode, a diaphragm assembly, a first friction film assembly, and an electrode assembly that are sequentially disposed in the housing, as compared with the first embodiment, Wherein, the diaphragm assembly and the first friction film assembly rub against each other to generate a sensing electrical signal, and the flexible electrode and the electrode assembly are two signal output ends of the pneumatic sensor. Thereby, under the action of the vortex inside the accommodating chamber, the diaphragm assembly is reciprocally vibrated on the diaphragm ring with respect to the bottom wall of the first friction film assembly and the outer casing, and is in frictional contact with the first friction film assembly to A sensing electrical signal is generated, and the generated sensing electrical signal can be output by the flexible electrode and the electrode assembly.

Or, in comparison with the second embodiment, the frictional power generation-based pneumatic sensor includes: a housing, and a flexible electrode, a diaphragm assembly, and an electrode assembly sequentially disposed in the housing, wherein the diaphragm assembly and the electrode The components rub against each other to produce a sensing electrical signal, and the flexible electrode and electrode assembly are the two signal outputs of the pneumatic sensor. Thereby, under the action of the eddy current inside the accommodating chamber, the diaphragm assembly can reciprocate on the diaphragm ring with respect to the bottom wall of the electrode assembly and the outer casing, and frictionally contact with the electrode assembly to generate a sensing electrical signal. The resulting sensed electrical signal can be output by the flexible electrode and electrode assembly.

Wherein, the material of the flexible electrode in this embodiment may be selected from metal or conductive metal oxide, and can be processed onto the diaphragm assembly by techniques known to those skilled in the art, such as magnetron sputtering, without affecting the diaphragm. The condition of the component that is capable of deforming. In addition, other specific structures and principles in this embodiment are similar to the above-described first embodiment and second embodiment, and are not described again.

The invention also provides an airflow treatment device. The airflow processing device includes the above-described frictional power generation-based pneumatic sensor and signal processing module. Wherein, the frictional power generation based pneumatic sensor is used for sensing the passage of the airflow, and converting the mechanical energy acting on the airflow into the sensing electrical signal output; the signal processing module, the input end thereof and the output of the frictional power generation based pneumatic sensor Connected to the end, for receiving and processing the sensing electrical signal output by the frictional power-based pneumatic sensor, and according to the sense The electrical signal output controls the electrical signal.

Further, the signal processing module includes: an amplifying module, a rectifying module, a filtering module, an analog-to-digital conversion module, a micro control module, and a power module; wherein the amplifying module has an input end connected to an output end of the friction sensor based pneumatic sensor, and is used for Amplifying the sensing electrical signal outputted by the pneumatic sensor; the input end of the rectifier module is connected to the output end of the amplifying module, and is used for rectifying the amplified sensing electrical signal output by the amplifying module; the filtering module, the input end thereof and the rectifying The output end of the module is connected to filter the interference clutter in the sensing electrical signal outputted by the rectifier module; the analog-to-digital conversion module has an input end connected to the output end of the filtering module, and is used for analog sensing of the output of the filtering module. The electrical signal is converted into a digital sensing electrical signal; the micro control module has an input end connected to the output end of the analog to digital conversion module, and outputs a control electrical signal according to the digital sensing electrical signal output by the analog to digital conversion module; the power module, the output thereof The power input end of the amplification module, the power input end of the rectifier module, and the power input end of the filter module D conversion input power module and the control module micro power input terminal for supplying electrical power.

Optionally, the micro control module is configured to compare the voltage of the digital sensing electrical signal with a preset voltage threshold. If the voltage of the digital sensing electrical signal is lower than the preset voltage threshold, the micro control module outputs a low level control power. The signal; if the voltage of the digital sensing electrical signal is higher than or equal to the preset voltage threshold, the micro control module outputs a high level control electrical signal.

Optionally, the micro control module is further configured to compare the frequency of the digital sensing electrical signal with a preset frequency range, and if the frequency of the digital sensing electrical signal does not belong to the preset frequency range, the micro control module outputs a low level control. The electrical signal; if the frequency of the digital sensing electrical signal belongs to a preset frequency range, the micro control module outputs a high level control electrical signal.

It should be noted that the micro control module may only judge the voltage value of the digital sensing electrical signal, or may only judge the frequency of the digital sensing electrical signal, and may also simultaneously determine the voltage value and frequency of the digital sensing electrical signal, and sense the digital The voltage value and frequency of the electrical measurement signal are simultaneously judged, which can reduce the false alarm rate and make the work more accurate and stable.

The invention also provides an electronic cigarette. As shown in FIG. 6, in this embodiment, the electronic cigarette 300 includes: the airflow processing device 310, the tobacco rod 320, the atomizer 330, and the power supply device 340. Specifically, the power supply device 340 supplies power to the atomizer 330 and the airflow processing device 310, and the airflow processing device 310 is coupled to the atomizer 330. The electronic cigarette 300 is provided with an air inlet (not shown) and a cigarette holder 350. The airflow processing device 310 is located in a smoke passage that communicates with the air inlet of the electronic cigarette 300 and the mouthpiece 350.

Thus, when the user inhales through the mouthpiece 350, the airflow enters the airflow treatment device 310 through the air inlet of the electronic cigarette 300, such that the diaphragm assembly inside the frictional power generation based pneumatic sensor in the airflow treatment device and its corresponding components and/or Or the bottom wall of the outer casing is in contact with each other to generate a sensing electrical signal. After the sensing electrical signal is received and processed by the signal processing module, the signal processing module generates a corresponding control electrical signal according to the sensing electrical signal, thereby controlling the connected electrical signal. The operation of the atomizer 330 causes the smoke oil adjacent to it to volatilize to generate smoke, and the generated smoke is supplied to the user through the smoke passage.

The frictional power generation-based pneumatic sensor of the invention has simple structure and low manufacturing process, low production cost, low requirement on the signal processing module, and at the same time, under the condition of external vibration and force, it is not enough to make the friction layer between the pneumatic sensor The electrical signal output can easily generate a higher voltage signal due to the passage of the airflow, and can be easily designed by the signal processing module to distinguish the sensing electrical signal generated by the airflow and the vibration interference, thereby effectively preventing the false triggering of the vibration interference and improving the pneumatic The stability of the sensor work.

In addition, the electronic cigarette of the present invention applying the airflow processing device effectively reduces the manufacturing cost of the electronic cigarette, simplifies the manufacturing process of the electronic cigarette, and effectively prevents false triggering of the vibration interference, thereby improving the stability of the electronic cigarette operation. .

Further, Figure 7 illustrates a functional block diagram of an embodiment of a smart pneumatic sensor system provided by the present invention. As shown in FIG. 7, the smart pneumatic sensor system includes: a frictional power generation based pneumatic sensor 400, a signal acquisition unit 500 connected to the friction power generation based pneumatic sensor 400, a signal control unit 600 connected to the signal acquisition unit 500, and The trigger circuit 700 connected to the signal control unit 600.

The frictional power generation based pneumatic sensor 400 is configured to output an alternating current signal reflecting the magnitude of the gas flow rate as the gas flows. A pneumatic sensor based on frictional power generation is prepared using a friction generator. A friction sensor-based pneumatic sensor generally includes a housing and a friction generating component (ie, a friction generator) located inside the housing, and the housing is provided with an air inlet and an air outlet, and the housing has a communication with the air inlet and the air outlet. Air flow path. When the airflow enters the airflow path through the air inlet, the friction power generating component generates a friction output alternating current signal due to the airflow, and the output alternating current signal is output through the output end of the frictional power generation based pneumatic sensor. Friction power generation based pneumatic sensor 400 in this embodiment The friction sensor-based pneumatic sensor described above and in the prior art can be used, and its structure will not be described again.

A pneumatic sensor based on frictional power generation outputs an alternating current signal when there is a gas passing through a frictional power generation based pneumatic sensor. The magnitude and frequency of the alternating current signal are proportional to the flow rate of the gas. At the same time, according to the diameter of the friction sensor based pneumatic sensor, the output alternating current signal ranges from several hundred mV to several V. Therefore, a pneumatic sensor based on frictional power generation can provide more information about the gas, such as whether or not there is a gas flow through the output of the alternating current signal, and the flow rate of the gas can be detected by the magnitude and/or frequency of the alternating current signal. .

The signal acquisition unit 500 has an input end connected to the output of the friction power generation based pneumatic sensor 400 for collecting and processing an alternating current signal output by the friction power generation based pneumatic sensor 400. Specifically, as shown in FIG. 8 , the signal acquisition unit 500 includes a rectifier circuit 510 , a filter circuit 520 , an amplification circuit 530 , and an analog-to-digital conversion circuit 540 . The input end of the rectifier circuit 510 (ie, the input end of the signal acquisition unit 500) is connected to the output end of the friction power generation based pneumatic sensor 400 for converting the AC pulse electrical signal output by the friction power generation based pneumatic sensor 400 into a single The phase-pulsed DC signal; the input end of the filter circuit 520 is connected to the output end of the rectifier circuit 510 for filtering the interference clutter in the electrical signal output by the rectifier circuit 510; the input of the amplifier circuit 530 and the output of the filter circuit 520 The terminals are connected to amplify the electrical signal outputted by the filter circuit 520; the input end of the analog-to-digital conversion circuit 540 is connected to the output end of the amplifying circuit 530, and the output end thereof (ie, the output end of the signal collecting unit 500) and the signal control unit 600 The input terminals are connected to convert the analog electrical signals amplified by the amplifying circuit 530 into digital electrical signals, and output to the signal control unit 600. It should be noted that the above circuit can be selected according to requirements. If the collected AC signal is large enough, the amplifying circuit can be omitted, which is not limited herein. In addition, the analog-to-digital conversion circuit 540 can also be disposed in the signal control unit 600, which is not limited herein.

The signal control unit 600 is connected to the output end of the signal acquisition unit 500 for comparing the electrical signal processed by the signal acquisition unit 500 with a preset step range to obtain a control signal. The preset step range may be divided into specific data value ranges according to actual applications, such as voltage signal size, frequency signal level, etc., and the obtained control signals are also different according to preset step ranges.

Optionally, the signal control unit 600 includes: a voltage signal control unit 610, and a voltage signal control The input of the unit 610 (ie, the input of the signal control unit 600) is connected to the output of the signal acquisition unit 500, and the output (ie, the output of the signal control unit 600) is connected to the input of the trigger circuit 700 for The electrical signal outputted by the signal processing unit 500 is analyzed to obtain a voltage signal, the voltage signal is compared with a preset step voltage range, and a control signal corresponding to the preset step voltage range is obtained according to a preset step voltage range to which the voltage signal belongs, and This control signal is output to the trigger circuit 700. The preset step voltage range can be divided according to the voltage signal size.

Optionally, the signal control unit 600 includes: a frequency signal control unit 620, and an input end of the frequency signal control unit 620 (ie, an input end of the signal control unit 600) is connected to an output end of the signal acquisition unit 500, and an output end thereof (ie, a signal) The output end of the control unit 600 is connected to the input end of the trigger circuit 700 for analyzing the electrical signal output by the processing signal acquisition unit 500 to obtain a frequency signal, and comparing the frequency signal with a preset step frequency range, according to the preamble to which the frequency signal belongs. The step frequency range is obtained to obtain a control signal corresponding to the preset step frequency range, and the control signal is output to the trigger circuit 700. The preset step frequency range can be divided according to the frequency signal level.

In order to further improve the accuracy and stability of the intelligent pneumatic sensor system, both the voltage and the frequency of the electrical signal output by the signal acquisition unit 500 can be analyzed and processed at the same time. That is, the signal control unit 600 includes: a voltage signal control unit 610 and a frequency signal control unit 620. The input end of the voltage signal control unit 610 and the input end of the frequency signal control unit 620 are simultaneously connected to the output end of the signal acquisition unit 500, and the voltage signal The output end of the control unit 610 and the output end of the frequency signal control unit 620 are simultaneously connected to the input end of the trigger circuit 700 for analyzing the electrical signal output by the processing signal acquisition unit 500 to obtain a voltage signal and a frequency signal, and the voltage signal and the frequency signal. Comparing with the preset step range; wherein the preset step range sets the preset step voltage range and the preset step frequency range; according to the preset step voltage range to which the voltage signal belongs and the preset step frequency range to which the frequency signal belongs The preset step corresponds to a control signal and outputs the control signal to the trigger circuit 700. At the same time, the analysis of voltage and frequency makes the accuracy of the whole intelligent pneumatic sensor system improve, and the false alarm rate decreases, which improves the stability of the whole system.

The trigger circuit 700 has a plurality of load gear positions, and the input ends of the plurality of load gear positions (ie, the input end of the trigger circuit 700) are simultaneously connected to the output end of the signal control unit 600 for receiving the control signal and selecting the connection according to the control signal. A load gear position to activate the function corresponding to the load gear position.

The trigger circuit 700 is further configured to: compare the control signal with a preset signal mode threshold, According to the comparison result, choose to connect a load gear. For a plurality of load gear positions, each load gear has its corresponding preset signal mode threshold. According to the comparison result, the load gear position that the trigger circuit 700 should be connected is selected, thereby implementing the function corresponding to the load gear position.

The plurality of load gears in the trigger circuit 700 correspond at least to: untriggered, triggered, and alarmed. The load gear position corresponding to the trigger further includes: at least one trigger level. The trigger level can be further divided into trigger level, trigger level 2, trigger level N, etc., corresponding to different load positions.

Taking the voltage signal as an example, if the preset step voltage range in the signal control unit 600 includes five voltage threshold ranges, the first voltage threshold range is ≤ 0V, and the output control signal 000 corresponds to the untriggered load gear position; 0.001V ≤ second The voltage threshold range is <2V, the output control signal 001 corresponds to the trigger level of the trigger load gear; the 2V ≤ third voltage threshold range <4V, the output control signal 010, corresponding to the triggered load gear trigger level 2; 4V ≤ fourth The voltage threshold range is ≤5V, the output control signal 011, corresponding to the triggering load gear level trigger three levels; the fifth voltage threshold range >5V, the output control signal 111, corresponding to the alarm load gear position. If the voltage signal is 0V, the signal control unit 600 compares the voltage signal 0V with the five voltage threshold ranges included in the preset step voltage range, respectively, to obtain that the voltage signal belongs to the first voltage threshold range, and therefore, outputs the control signal. 000 to the trigger circuit 700; after receiving the control signal 000, the trigger circuit 700 compares the control signal with the preset signal mode threshold in the trigger circuit 700, and determines the preset of the untriggered load gear in the trigger circuit 700. The signal mode threshold is the same, and the load gear is connected to realize the function corresponding to the load gear. If the voltage signal is 1V, the signal control unit 600 compares the voltage signal 1V with the five voltage threshold ranges included in the preset step voltage range, respectively, to obtain that the voltage signal belongs to the second voltage threshold range, and therefore, outputs the control signal. 001 to the trigger circuit 700; after receiving the control signal 001, the trigger circuit 700 compares the control signal with the preset signal mode threshold in the trigger circuit 700, and determines the trigger level of the trigger load position in the trigger circuit 700. The preset signal mode threshold is the same, and the load gear position is connected to realize the function corresponding to the load gear position. If the voltage signal is 6V, the signal control unit 600 compares the voltage signal 6V with the five voltage threshold ranges included in the preset step voltage range, respectively, to obtain that the voltage signal belongs to the fifth voltage threshold range, and therefore, outputs the control signal. 111 to the trigger circuit 700; after receiving the control signal 111, the trigger circuit 700 compares the control signal with the preset signal mode threshold in the trigger circuit 700, and determines the preset signal of the alarm load position in the trigger circuit 700. Mode threshold The same, and then connected to the load gear position, to achieve the function corresponding to the load gear position. By analogy, it will not be repeated here.

Taking the frequency signal as an example, if the preset step frequency range in the signal control unit 600 includes five frequency threshold ranges, the first frequency threshold range is <400 Hz, the output control signal 000 corresponds to the untriggered load gear position; 400 Hz ≤ the second frequency Threshold range <800Hz, output control signal 001, corresponding to the trigger level of the trigger load gear; 800Hz ≤ third frequency threshold range <1100Hz, output control signal 010, trigger level corresponding to the trigger load gear; 1100Hz ≤ fourth frequency The threshold range is ≤1500Hz, the output control signal 011 is corresponding to the triggering trigger gear level three levels; the fifth frequency threshold range is >1500Hz, and the output control signal 111 is corresponding to the alarm load gear position. If the frequency signal is 0 Hz, the signal control unit 600 compares the frequency signal 0 Hz with the five frequency threshold ranges included in the preset step frequency range, respectively, to obtain that the frequency signal belongs to the first frequency threshold range, and therefore, outputs the control signal. 000 to the trigger circuit 700; after receiving the control signal 000, the trigger circuit 700 compares the control signal with the preset signal mode threshold in the trigger circuit 700, and determines the preset of the untriggered load gear in the trigger circuit 700. The signal mode threshold is the same, and the load gear is connected to realize the function corresponding to the load gear. If the frequency signal is 600 Hz, the signal control unit 600 compares the frequency signal 600 Hz with five frequency threshold ranges included in the preset step frequency range, respectively, to obtain that the electric frequency signal belongs to the second frequency threshold range, and therefore, the output control The signal 001 is sent to the trigger circuit 700. After receiving the control signal 001, the trigger circuit 700 compares the control signal with the preset signal mode threshold in the trigger circuit 700, and determines that it triggers with the trigger load gear in the trigger circuit 700. The preset signal mode thresholds of the level are the same, and the load gear position is connected to realize the function corresponding to the load gear position. If the frequency signal is 1700 Hz, the signal control unit 600 compares the frequency signal 1700 Hz with the five frequency threshold ranges included in the preset step frequency range, respectively, to obtain that the frequency signal belongs to the fifth frequency threshold range, and therefore, outputs the control signal. 111 to the trigger circuit 700; after receiving the control signal 111, the trigger circuit 700 compares the control signal with the preset signal mode threshold in the trigger circuit 700, and determines the preset signal of the alarm load position in the trigger circuit 700. The mode threshold is the same, and the load gear is connected to realize the function corresponding to the load gear. By analogy, it will not be repeated here.

In addition, if both the voltage and the frequency of the electrical signal output by the signal acquisition unit 500 are simultaneously analyzed, that is, the voltage signal and the frequency signal are taken as an example, if the signal control unit 600 pre- The step range includes five threshold ranges. The first voltage threshold range is ≤0V, and the first frequency threshold range is <400Hz, the output control signal 000 corresponds to the untriggered load gear position; the 0.001V≤the second voltage threshold range<2V, and the 400Hz≤the second frequency threshold range<800Hz , the output control signal 001, corresponding to the trigger level of the trigger load gear; 2V ≤ the third voltage threshold range <4V, and 800Hz ≤ the third frequency threshold range <1100Hz, the output control signal 010, corresponding to the trigger of the trigger load position Level; 4V ≤ fourth voltage threshold range ≤ 5V, and 1100Hz ≤ fourth frequency threshold range ≤ 1500Hz, output control signal 011, trigger three levels corresponding to trigger load gear; fifth voltage threshold range > 5V, and fifth frequency The threshold range is >1500Hz, and the output control signal 111 corresponds to the alarm load position. If the voltage signal is 0V and the frequency signal is less than 0Hz, the signal control unit 600 compares the voltage signal 0V with the five voltage threshold ranges included in the preset step voltage range and the frequency signal 0Hz respectively and the preset step frequency. The five frequency threshold ranges included in the range are compared, and the voltage signal belongs to the first voltage threshold range, and the frequency signal belongs to the first frequency threshold range. Therefore, the control signal 000 is outputted to the trigger circuit 700; the trigger circuit 700 receives the control signal. After the 000 is compared, the control signal is compared with the preset signal mode threshold in the trigger circuit 700, and is determined to be the same as the preset signal mode threshold of the untriggered load gear in the trigger circuit 700, thereby connecting the load gear to achieve the The function corresponding to the load gear. If the voltage signal is 1V and the frequency signal is less than 600Hz, the signal control unit 600 compares the voltage signal 1V with the five voltage threshold ranges included in the preset step voltage range and the frequency signal 600Hz respectively and the preset step frequency. The five frequency threshold ranges included in the range are compared, and the voltage signal belongs to the second voltage threshold range, and the frequency signal belongs to the second frequency threshold range. Therefore, the control signal 001 is outputted to the trigger circuit 700; the trigger circuit 700 receives the control signal. After 001, the control signal is compared with the preset signal mode threshold in the trigger circuit 700, and is determined to be the same as the preset signal mode threshold of the trigger level of the trigger load gear in the trigger circuit 700, and then the load gear is connected. , to achieve the function corresponding to the load gear. By analogy, it will not be repeated here.

It should be noted that both the voltage and the frequency of the electrical signal output by the signal acquisition unit 500 are analyzed and processed at the same time, and the voltage signal and the frequency signal are required to satisfy the preset step range set by the signal acquisition unit 500, and the corresponding control signal can be output. If the preset step range is not satisfied, the control signal 000 may be output, and the load signal is not triggered, or other control signals set by those skilled in the art, which are not limited herein.

As shown in FIG. 7 , the intelligent pneumatic sensor system provided by the present invention further includes: a power supply unit 800, the output end of which is simultaneously connected with the signal input unit 500, the signal control unit 600 and the power input end of the trigger circuit 700 for signal acquisition. Unit 500, signal control unit 600, and trigger circuit 700 provide electrical energy. The power supply unit 800 can be selected from a lithium battery or a rechargeable charging module. The charging method can be USB charging mode, Bluetooth or NFC wireless charging mode.

The integration of the power supply unit 800 with the signal acquisition unit 500, the signal control unit 600, and the trigger circuit 700 is a one-piece structure or a discrete structure.

The one-piece structure is a chip based on an application-specific integrated circuit ASIC technology, and the power supply unit 800 is integrated with the signal acquisition unit 500, the signal control unit 600, and the trigger circuit 700 in one chip. Compared with general-purpose integrated circuits, it has the advantages of smaller size, lighter weight, lower power consumption, improved reliability, improved performance, enhanced confidentiality and reduced cost.

The discrete structure realizes the signal acquisition, analysis and processing by selecting the micro single-chip microcomputer, that is, the signal acquisition unit 500, the signal control unit 600 and the trigger circuit 700 are integrated in the micro single-chip microcomputer, and the whole novel intelligent pneumatic sensor system is realized by the external power supply unit 800. .

The above intelligent pneumatic sensor system provided by the present invention can be applied to a smart microphone, which can be applied to an electronic cigarette. Specifically, the electronic cigarette includes: a chimney main body and a cigarette holder, the cigarette holder is disposed at one end of the chimney main body; the chimney main body is internally provided with a smart microphone head using the smart pneumatic sensor system, and is further provided with a battery component, a control circuit board and an atomizer; The main body of the chimney is provided with an air inlet hole; the battery component supplies power to the control circuit board and the atomizer, and the control circuit board is connected with the smart microphone and the atomizer; the smart microphone is located in the ventilation passage communicating with the air inlet and the cigarette holder. When the airflow enters the venting passage through the air inlet hole, the smart microphone generates an output signal due to the airflow, and the corresponding working signal is triggered according to the signal to control the atomizer operation. The electronic cigarette using the smart microphone can control the atomizer to work at different power according to different suction forces, so that the smoke output changes with the suction force, and the electronic cigarette is closer to the real cigarette.

The above described intelligent pneumatic sensor system provided by the present invention can also be applied to a drug atomizer. The drug nebulizer atomizes the drug into tiny particles that enter the respiratory tract and lungs by breathing inhalation, thereby achieving painless, rapid, and effective treatment. The drug atomizer using the intelligent pneumatic sensor system can control the atomizer to work at different powers according to different suction forces during atomization, so that the drug changes with suction when atomizing, thereby fully utilizing the drug. Rate and efficacy.

It should be noted that the above-mentioned intelligent pneumatic sensor system can also be applied to other systems similar to those generated by friction-genuine-based pneumatic sensors, and is not limited to applications in smart microphones and drug nebulizers.

The intelligent pneumatic sensor system provided by the invention compares the alternating current signal outputted by the frictional power generation based pneumatic sensor with the preset step range to obtain a control signal, and can select and connect the corresponding load file according to the control signal. Bit, start the corresponding function. The intelligent pneumatic sensor system provided by the invention can set a plurality of preset step ranges and set a plurality of load gear positions, so that the output control signal is more accurate and stable.

The various modules mentioned in the present invention are circuits implemented by hardware. Although some of the modules integrate software, the present invention protects the hardware circuits that integrate the functions corresponding to the software, not just the software itself.

The invention has been described above by way of specific examples, and it should be understood that the detailed description of the invention should not be construed Various modifications made by the embodiments are within the scope of the invention.

Claims (25)

A frictional power-based pneumatic sensor, comprising: An outer casing is formed with an accommodating chamber, an air inlet is formed on the side wall, an air outlet is formed on the bottom wall, and the air inlet and the air outlet are respectively connected to the accommodating chamber. To form an airflow path; a diaphragm assembly, the two ends of which are fixedly disposed in the accommodating chamber inside the outer casing, and a vibration gap is formed between the electrode assembly and the bottom wall of the outer casing, respectively, and the airflow inside the accommodating chamber The diaphragm assembly is reciprocally vibrated relative to the electrode assembly and the bottom wall of the outer casing; The electrode assembly is a signal output end of the pneumatic sensor, located in an accommodating chamber inside the outer casing, opposite to the diaphragm assembly, and the diaphragm assembly and the electrode assembly reciprocally vibrating And/or the bottom wall of the outer casing rubbing against each other to generate a sensing electrical signal and output by the electrode assembly. A friction power generation-based pneumatic sensor according to claim 1, further comprising a first friction film assembly, said first friction film assembly being disposed on a side of said electrode assembly facing said diaphragm assembly, The diaphragm assembly reciprocatingly vibrating with the first friction film assembly and/or the bottom wall of the outer casing may generate a sensing electrical signal. A friction power generation-based pneumatic sensor according to claim 1 or 2, further comprising a second friction film assembly disposed on an inner side of the bottom wall of the casing, and the diaphragm The components are oppositely disposed, and at least one air hole is disposed on the second friction film assembly corresponding to the air outlet on the bottom wall of the outer casing, and the diaphragm assembly and the second friction film assembly reciprocally vibrating each other A sensing electrical signal is generated. The friction power generation-based pneumatic sensor according to any one of claims 1 to 3, further comprising a flexible electrode disposed on a side of the diaphragm assembly facing the bottom wall of the casing, The flexible electrode and the electrode assembly are two signal outputs of the pneumatic sensor. The frictional power generation-based pneumatic sensor according to any one of claims 1 to 4, wherein a diaphragm ring is disposed in the accommodating chamber inside the casing, and the two ends of the diaphragm assembly are respectively fixedly disposed. An airflow passage is formed between the side of the diaphragm assembly and the diaphragm ring on the diaphragm ring, and the diaphragm assembly can be driven by the airflow inside the housing chamber. The diaphragm ring reciprocally vibrates with respect to the electrode assembly and a bottom wall of the outer casing. The friction power generation-based pneumatic sensor according to claim 5, wherein a first gasket is disposed in the accommodating chamber inside the casing, and the first gasket is located in the diaphragm ring and the electrode assembly a gap between the diaphragm assembly and the electrode assembly, and a gap formed in the first gasket corresponding to the air inlet on the side wall of the casing, through which the airflow can pass An air inlet on the side wall of the outer casing and a notch on the first gasket flow into a chamber between the diaphragm assembly and the electrode assembly. The friction power generation-based pneumatic sensor according to claim 6, wherein a second gasket is disposed in the accommodating chamber inside the casing, and the second gasket is located in the diaphragm ring and the outer casing. Between the bottom walls, a vibration gap is formed between the diaphragm assembly and the bottom wall of the outer casing, and a gap is formed on the second gasket corresponding to the air inlet on the side wall of the outer casing, and the air flow can be An air inlet opening on the side wall of the outer casing and a notch in the second gasket flow into the chamber between the diaphragm assembly and the bottom wall of the outer casing. The friction power generation-based pneumatic sensor according to claim 7, wherein a thickness of the first gasket is smaller than a thickness of the second gasket to vibrate between the diaphragm assembly and the electrode assembly The gap is smaller than a vibration gap between the diaphragm assembly and the bottom wall of the outer casing. The frictional power generation-based pneumatic sensor according to claim 7 or 8, wherein the diaphragm assembly on the diaphragm ring is arched, and a top portion of the arched diaphragm assembly faces the electrode assembly . The frictional power generation-based pneumatic sensor according to claim 9, wherein the outer casing has a diameter of 4 to 20 mm, the first gasket has a thickness of 0.1 to 1 mm, and the second gasket has a thickness of 0.3 to 1 mm, the arc of the diaphragm assembly has an arc of 0.3 to 1.5 mm. A gas flow processing apparatus comprising the friction power generation-based pneumatic sensor according to any one of claims 1 to 10, and a signal processing module, wherein the friction power generation-based pneumatic sensor is used for sensing airflow passage And converting the mechanical energy acting on the airflow to the sensed electrical signal output; the signal processing module being coupled to the frictional power-based pneumatic sensor for receiving and processing the sensed electrical signal, And outputting a control electrical signal according to the sensing electrical signal. The airflow processing device according to claim 11, wherein the signal processing module comprises: an amplification module, a rectification module, a filtering module, an analog-to-digital conversion module, a micro control module, and a power module; wherein the amplification module, It is connected to the friction power generation-based pneumatic sensor for amplifying the sensing electrical signal output by the pneumatic sensor; the rectifier module is connected to the amplification module for amplifying the output of the amplification module The sensing electrical signal is subjected to rectification processing; the filtering module is connected to the rectifying module, and is configured to filter out interference clutter in the sensing electrical signal output by the rectifying module; the analog-to-digital conversion module Connected to the filtering module, configured to convert an analog sensing electrical signal output by the filtering module into a digital sensing electrical signal; the micro control module is coupled to the analog to digital conversion module, according to the modulus a digital sensing electrical signal output by the conversion module, outputting the control electrical signal; the power module, the amplification module, the rectifier module, and the Filtering module, the analog to digital conversion module, and the micro control module is connected to provide electrical power. The airflow processing device according to claim 12, wherein the micro control module is configured to compare a voltage of the digital sensing electrical signal with a preset voltage threshold, if the digital sensing electrical signal voltage Below the preset voltage threshold, the micro control module outputs a low level control electrical signal; if the voltage of the digital sensing electrical signal is higher than or equal to the preset voltage threshold, the micro control module Output high level control electrical signal. The airflow processing device according to claim 12 or 13, wherein the micro control module is configured to compare a frequency of the digital sensing electrical signal with a preset frequency range, if the digital sensing electrical signal The micro control module outputs a low level control electrical signal; if the frequency of the digital sensing electrical signal belongs to the preset frequency range, the micro control module outputs The high level controls the electrical signal. An intelligent pneumatic sensor system, comprising: the friction power generation-based pneumatic sensor according to any one of claims 1 to 10, and the friction-based power generation pneumatic transmission a sensor-connected signal acquisition unit, a signal control unit coupled to the signal acquisition unit, and a trigger circuit coupled to the signal control unit; The friction power generation-based pneumatic sensor is configured to output an alternating current signal reflecting a magnitude of the gas flow rate when the gas flows; The signal acquisition unit is configured to collect and process an alternating current signal output by the pneumatic sensor; The signal control unit is configured to compare the electrical signal processed by the signal acquisition unit with a preset step range to obtain a control signal; The trigger circuit has a plurality of load gears, and the trigger circuit is configured to receive the control signal, and select and connect a load gear according to the control signal, thereby starting a function corresponding to the load gear. The intelligent pneumatic sensor system according to claim 15, wherein the signal control unit comprises: a voltage signal control unit for analyzing and processing an electrical signal output by the signal acquisition unit to obtain a voltage signal, and the voltage signal Compared with the preset step voltage range, the control signal corresponding to the preset step voltage range is obtained according to the preset step voltage range to which the voltage signal belongs. The intelligent pneumatic sensor system according to claim 15, wherein the signal control unit comprises: a frequency signal control unit, configured to analyze and process an electrical signal output by the signal acquisition unit to obtain a frequency signal, and to use the frequency signal Comparing with the preset step frequency range, obtaining a control signal corresponding to the preset step frequency range according to the preset step frequency range to which the frequency signal belongs. The intelligent pneumatic sensor system according to claim 15, wherein the signal control unit comprises a voltage signal control unit and a frequency signal control unit for: Analyzing and processing the electrical signal output by the signal acquisition unit to obtain a voltage signal and a frequency signal, and comparing the voltage signal and the frequency signal with the preset step range; wherein the preset step range sets a preset ladder Voltage range and preset step frequency range; And obtaining a control signal corresponding to the preset step range according to a preset step voltage range to which the voltage signal belongs and a preset step frequency range to which the frequency signal belongs. The intelligent pneumatic sensor system according to any one of claims 15 to 18, wherein the trigger circuit is further configured to: compare the control signal with a preset signal mode threshold, and select to connect a load according to the comparison result. Gear position. The intelligent pneumatic sensor system according to claim 19, wherein said plurality of load gear positions correspond at least to: untriggered, triggered, and alarmed; The load gear position corresponding to the trigger further includes: at least one trigger level. The intelligent pneumatic sensor system according to claim 15, further comprising: a power supply unit coupled to said signal acquisition unit, said signal control unit and said trigger circuit for said signal acquisition unit The signal control unit and the trigger circuit provide electrical energy. The intelligent pneumatic sensor system according to claim 21, wherein the integration of the power supply unit with the signal acquisition unit, the signal control unit, and the trigger circuit is a one-piece structure or a discrete structure. An electronic cigarette comprising the airflow processing device according to any one of claims 11 to 14, and a tobacco rod, an atomizer, and a power supply device. A smart microphone comprising: the smart pneumatic sensor system of any of claims 15-22. A drug nebulizer, comprising: the smart pneumatic sensor system of any of claims 15-22.

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