CN106199560A - A kind of scan-type electro-optic radar - Google Patents
A kind of scan-type electro-optic radar Download PDFInfo
- Publication number
- CN106199560A CN106199560A CN201610534111.XA CN201610534111A CN106199560A CN 106199560 A CN106199560 A CN 106199560A CN 201610534111 A CN201610534111 A CN 201610534111A CN 106199560 A CN106199560 A CN 106199560A
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- China
- Prior art keywords
- scan
- motion mechanism
- intermittent motion
- type electro
- optical pickup
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- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 230000003287 optical effect Effects 0.000 claims abstract description 48
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000284 resting effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004540 process dynamic Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of scan-type electro-optic radar, including driving means, intermittent motion mechanism, optical pickup and control device；Driving means is for driving the drive shaft turns of intermittent motion mechanism；The driven shaft of intermittent motion mechanism is connected with the switching part of optical pickup；Optical pickup is driven by switching part and does intermittent rotation；Control device and carry out the collection of spatial information for starting optical pickup when driven shaft remains static.Scan-type electro-optic radar in the present invention, can be optical pickup time of integration of being provided with enough durations, so using ordinary optical harvester can collect the image with practical value；It is to say, the optical pickup of scan-type electro-optic radar the linear array detector of non-refrigeration type in the embodiment of the present invention, but cheap ordinary optical harvester, so the holistic cost of scan-type electro-optic radar the most just can be effectively reduced.
Description
Technical field
The present invention relates to space exploration field, particularly relate to a kind of scan-type electro-optic radar.
Background technology
Electro-optic radar can be generally used for the scenes such as the tracking of fixed point monitoring and dynamic object；When electro-optic radar is applied to sky
When the scanning in territory monitors, need the acquisition by completing image the shorter time of integration, preferable detection performance could be obtained.
In prior art, scan-type electro-optic radar typically can use linear array detector, obtains preferable detection performance；Line
Though the integration time period that array detector is on fixed position, its device need use refrigeration mode it just can be made to obtain figure
Picture there is relatively high s/n ratio, i.e. when only using the linear array detector of refrigeration mode to be applied in scan-type electro-optic radar, ability
Obtain image with practical value.
From the foregoing, it will be observed that scan-type electro-optic radar of the prior art is higher due to the price of its linear array detector, so its
Holistic cost is higher.
Summary of the invention
The technical problem to be solved is how to reduce the cost of scan-type electro-optic radar, concrete:
Embodiments provide a kind of scan-type electro-optic radar, including driving means, intermittent motion mechanism, optically detecting dress
Put and control device；
Described driving means is for driving the drive shaft turns of described intermittent motion mechanism；The driven shaft of described intermittent motion mechanism
It is connected with the switching part of described optical pickup；Described optical pickup is driven by described switching part and does intermittent rotation；
Described control device carries out space letter for starting described optical pickup when described driven shaft remains static
The collection of breath.
Preferably, in embodiments of the present invention, the rotating speed of described driving means is adjustable.
Preferably, in embodiments of the present invention, described driving means turn to adjustable.
Preferably, in embodiments of the present invention, described intermittent motion mechanism includes:
Geneva mechanism, cam intermittent motion mechanism or incomplete mechanism gear mechanism.
Preferably, in embodiments of the present invention, described cam intermittent motion mechanism includes:
Cylindrical cam intermittent motion mechanism, or, worm cam intermittent motion mechanism.
Preferably, in embodiments of the present invention, the static duration of interval of the driven pulley of described cam intermittent motion mechanism is not
5 width image required times are obtained less than described optical space information collecting device.
Preferably, in embodiments of the present invention, the interval of the driven pulley of described cam intermittent motion mechanism is a length of time static
100ms。
Preferably, in embodiments of the present invention, the indexed cam quantity of described cam intermittent motion mechanism is 20.
Preferably, in embodiments of the present invention, travelling gear is also included between described driven shaft and described switching part；Described
Travelling gear is for regulating the torque of described switching part.
In embodiments of the present invention, by being provided with intermittent motion mechanism, drive optical pickup to carry out intermittence
Rotate；Thus can make optical pickup rotate during, one section of static duration of the acquisition of intermittent, i.e. optics
Harvester often rotates after a default angle with regard to a static preset duration, is then rotated further by an angle, the most quiet
Only a preset duration, by that analogy, realizes the optical pickup scanning to spatial domain；Additionally, in the embodiment of the present invention, also
It is provided with control device, by controlling the startup opportunity of optical pickup, optical pickup is entered when resting state
The collection of row space information.
Due to the scan-type electro-optic radar in the embodiment of the present invention, can be that the optical pickup in scanning process is provided with
Enough times of integration of duration, so using ordinary optical harvester can collect the image with practical value；The most just
It is to say, the optical pickup of scan-type electro-optic radar the linear array detector of non-refrigeration type in the embodiment of the present invention, but valency
The ordinary optical harvester that lattice are cheap, so the most just can effectively reduce the holistic cost of scan-type electro-optic radar.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of scan-type electro-optic radar described herein；
Fig. 2 is the structural representation of cylindrical cam intermittent motion mechanism described herein；
Fig. 3 is the plane configuration structural representation of cam path described herein exhibition.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only this
Invent a part of embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
In order to reduce the cost of scan-type electro-optic radar, embodiments provide a kind of scan-type electro-optic radar, as
Shown in Fig. 1, including driving means 01, intermittent motion mechanism 02, optical pickup 03 and control device (not shown)；
Driving means 01 is for driving the drive shaft 21 of intermittent motion mechanism 02 to rotate；Driven 22 of intermittent motion mechanism 02 with
The switching part 31 of optical pickup 03 connects；Optical pickup 03 is driven by switching part 31 and does intermittent rotation；Control dress
Put and carry out the collection of spatial information for the startup optical pickup 03 when remaining static for driven 22.
In embodiments of the present invention, driving means 01 can be the conventional power sources such as motor as power source.
As a example by driving means 01 is motor, by the rotation of motor shaft, between intermittent motion mechanism 02 can be driven to carry out
The rotation of having a rest property；Concrete, motor can drive drive shaft by being connected with the drive shaft 21 driving intermittent motion mechanism 02
21 rotate.
Its concrete structure of intermittent motion mechanism 02 in the embodiment of the present invention can include multiple, is typically include groove
Wheel mechanism, cam intermittent motion mechanism or incomplete mechanism gear mechanism etc., as long as include drivewheel and driven pulley, and can drive
Driven pulley does intermittence and rotates.
Intermittent rotation described in the embodiment of the present invention, during its running status can be specifically rotation, interval
Property one section of static duration of acquisition, i.e. often rotate after a default angle with regard to a static preset duration, be then rotated further by one
Individual angle, the most static preset duration, cyclicity run action by that analogy.
Preferably, in order to obtain more preferable stability, optical pickup 03 is made to avoid bigger shake in scanning process
Dynamic, the intermittent motion mechanism 02 in the embodiment of the present invention can be cam intermittent motion mechanism, the allusion quotation of cam intermittent motion mechanism
Type structure includes cylindrical cam intermittent motion mechanism and worm cam intermittent motion mechanism etc..
Intermittent motion mechanism 02 in Fig. 2 is cylindrical cam intermittent motion mechanism, its concrete structure and operation logic
For:
Cylindrical cam intermittent motion mechanism includes driving shaft 21, drivewheel 23, driven Luntai 22 and driven shaft 24；Drivewheel 23
Outer wall be provided with cam path, driven Luntai 22 is provided with multiple indexed cam；Indexed cam is adaptive with cam path；Cam path expands into
As it is shown on figure 3, wherein, the part that in figure, turn in upper and lower two ends is for driving section, the portion of the middle straight line in figure for form after plane
It is divided into static segment；In the rotation process of drivewheel 21, first indexed cam can drive the entrance of section to enter along being positioned at cam path
In cam path, then, the cam path in rotation can be by driving section by indexed cam switch, when indexed cam turns to cam path
Static segment time, although drivewheel also rotate, but owing to the cam path of static segment is straight line, so indexed cam can keep
The resting state of a period of time, i.e. indexed cam can static a period of time after rotating an angle；Until the next one of cam path
Driving section to turn to the current location of cam rotation, indexed cam just can carry out rotation next time；Cam path often rotates one week,
The entrance of next indexed cam switch to the driving section of cam path can be entered such that it is able to continue to stir next indexed cam
Enter in cam path.Thus can be under the driving of the lasting rotation of drivewheel 21, driven Luntai 22 and driven shaft 24 do interval
The rotation of property.
Owing to driven shaft does intermittent rotation, so the optical pickup connected with driven shaft just can be with corresponding
The intermittent mode rotated is scanned, in actual applications, when being the startup being controlled optical pickup by device processed
Machine；So, the collection of spatial information is carried out with regard to starting optical pickup whenever entrance driven shaft enters resting state；Whenever
When driven shaft rotates, it is shut off optical pickup.Owing to resting state can be that optical pickup provides enough integrations
Time, so using ordinary optical harvester can collect the image with practical value；It is to say, the present invention implements
The optical pickup of scan-type electro-optic radar the linear array detector of non-refrigeration type in example, but cheap ordinary optical
Harvester, so the most just can effectively reduce the holistic cost of scan-type electro-optic radar.
In actual applications, the driving means 01 in the embodiment of the present invention specifically can also is that adjustable speed and scalable turn to
Driving means.
Buncher can be passed through specifically, regulate the rotating speed of drivewheel, such that it is able to regulate sweeping of electro-optic radar
Retouch the cycle.Turn to further, it is also possible to motor is set to scalable, by controlling optical pickup 03 at certain angular range
Interior reciprocating rotation, such that it is able to set the sweep limits of electro-optic radar.
During the target detection of optical tracking system, generally, detection target is from detecting that confirmation at least needs
Wanting 5 two field pictures, it is preferred, therefore, that in embodiments of the present invention, cam intermittent motion mechanism can be designed as, its driven pulley
The most static duration obtains 5 width image required times not less than optical space information collecting device.In this manner it is possible to well protect
Barrier image definition and, for the demand of amount of images during detection.
Owing to generally, the operating frequency of non-brake method optical pickup is 50Hz, therefore, in the embodiment of the present invention
In, the static duration of interval of the driven pulley of cam intermittent motion mechanism can be designed as 100ms, thus right during meeting detection
Demand in amount of images.
The quality of effect of scan-type detection, is also embodied in the collection density of image acquisition for surface sweeping spatial domain, at this
In inventive embodiments, by the indexed cam quantity of cam intermittent motion mechanism is set to 20, thus avoid electro-optic radar
The drain message when Scanning Detction.
With the operating frequency of non-brake method optical pickup as 50Hz, the interval of driven pulley static time a length of 100ms, indexing
As a example by cam quantity is set to 20；Driven pulley often rotates and is once maintained for static 100ms, in this section quiescent time, and non-system
Cold optical pickup just can gather 5 pictures, and then, driven pulley is rotated further next time, so after 20 times rotate,
Non-brake method optical pickup rotates one week (360 degree), 4s when sharing；That is, the scan period of scan-type electro-optic radar is 4 seconds,
Within every 4 seconds, complete one 360 degree scannings.
Preferably, in embodiments of the present invention, travelling gear is also included between driven shaft and switching part；Travelling gear is used for
The torque in adjusting switchover portion.By being provided with travelling gear, can be with the torque in adjusting switchover portion, i.e. can be each with adjusting switchover portion
The rotation amplitude rotated, owing to the rotational angle of a scan period is fixing (360 degree), thus every by adjusting switchover portion
The rotation amplitude of secondary rotation, thus the most just can regulate the length of the scan period of scan-type electro-optic radar.
In embodiments of the present invention, it is preferred that control device and can also include sensor, so, pass through sensor acquisition
The running position of parts in intermittent motion mechanism, or, whether the running position gathering optical pickup determines driven shaft
Remain static, such that it is able to generate corresponding control instruction, optical pickup is controlled accordingly.
Above scan-type electro-optic radar provided by the present invention is described in detail.Specific case used herein
Principle and embodiment to the present invention are set forth, and the explanation of above example is only intended to help to understand the side of the present invention
Method and core concept thereof.It should be pointed out that, for those skilled in the art, without departing from the principle of the invention
Under premise, it is also possible to the present invention is carried out some improvement and modification, these improve and modify and also fall into the claims in the present invention
In protection domain.
Claims (9)
1. a scan-type electro-optic radar, it is characterised in that include driving means, intermittent motion mechanism, optical pickup and
Control device；
Described driving means is for driving the drive shaft turns of described intermittent motion mechanism；The driven shaft of described intermittent motion mechanism
It is connected with the switching part of described optical pickup；Described optical pickup is driven by described switching part and does intermittent rotation；
Described control device carries out space letter for starting described optical pickup when described driven shaft remains static
The collection of breath.
Scan-type electro-optic radar the most according to claim 1, it is characterised in that the rotating speed of described driving means is adjustable.
Scan-type electro-optic radar the most according to claim 1, it is characterised in that turning to of described driving means is adjustable.
4. according to scan-type electro-optic radar described in Claims 2 or 3, it is characterised in that described intermittent motion mechanism includes:
Geneva mechanism, cam intermittent motion mechanism or incomplete mechanism gear mechanism.
Scan-type electro-optic radar the most according to claim 4, it is characterised in that described cam intermittent motion mechanism includes:
Cylindrical cam intermittent motion mechanism, or, worm cam intermittent motion mechanism.
Scan-type electro-optic radar the most according to claim 5, it is characterised in that the driven pulley of described cam intermittent motion mechanism
The static duration of interval obtain 5 width image required times not less than described optical space information collecting device.
Scan-type electro-optic radar the most according to claim 6, it is characterised in that the driven pulley of described cam intermittent motion mechanism
Interval static time a length of 100ms.
Scan-type electro-optic radar the most according to claim 7, it is characterised in that the indexing of described cam intermittent motion mechanism is convex
Wheel quantity is 20.
Scan-type electro-optic radar the most according to claim 8, it is characterised in that
Travelling gear is also included between described driven shaft and described switching part；Described travelling gear is for regulating described switching part
Torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610534111.XA CN106199560A (en) | 2016-07-08 | 2016-07-08 | A kind of scan-type electro-optic radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610534111.XA CN106199560A (en) | 2016-07-08 | 2016-07-08 | A kind of scan-type electro-optic radar |
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| CN106199560A true CN106199560A (en) | 2016-12-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024725A (en) * | 2017-05-31 | 2017-08-08 | 长沙傲英创视信息科技有限公司 | A kind of big visual field low-light low latitude unmanned plane detection device |
| US20190313032A1 (en) * | 2016-12-19 | 2019-10-10 | Dongguan Frontier Technology Institute | Scanning method of photoelectric remote sensing system |
| CN112327258A (en) * | 2020-10-10 | 2021-02-05 | 南京誉葆科技有限公司 | Millimeter wave receiver |
| CN112595733A (en) * | 2020-12-18 | 2021-04-02 | 北京城市排水集团有限责任公司 | Swing control data acquisition method based on ground penetrating radar |
| CN116482681A (en) * | 2022-09-23 | 2023-07-25 | 芯泰智能科技(广东)有限公司 | A Discontinuous Discrete Dot Product Calculation Phased Array Radar |
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| CN201471511U (en) * | 2009-08-03 | 2010-05-19 | 曾任飞 | Driving device for determined angle rotation of drilling knife rubbery pad |
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2016
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| CN101598196A (en) * | 2009-07-03 | 2009-12-09 | 东华大学 | A Chain Drive Intermittent Motion Mechanism |
| CN201471511U (en) * | 2009-08-03 | 2010-05-19 | 曾任飞 | Driving device for determined angle rotation of drilling knife rubbery pad |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190313032A1 (en) * | 2016-12-19 | 2019-10-10 | Dongguan Frontier Technology Institute | Scanning method of photoelectric remote sensing system |
| US11050940B2 (en) * | 2016-12-19 | 2021-06-29 | Dongguan Frontier Technology Institute | Scanning method of photoelectric remote sensing system |
| CN107024725A (en) * | 2017-05-31 | 2017-08-08 | 长沙傲英创视信息科技有限公司 | A kind of big visual field low-light low latitude unmanned plane detection device |
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| CN112327258A (en) * | 2020-10-10 | 2021-02-05 | 南京誉葆科技有限公司 | Millimeter wave receiver |
| CN112595733A (en) * | 2020-12-18 | 2021-04-02 | 北京城市排水集团有限责任公司 | Swing control data acquisition method based on ground penetrating radar |
| CN116482681A (en) * | 2022-09-23 | 2023-07-25 | 芯泰智能科技(广东)有限公司 | A Discontinuous Discrete Dot Product Calculation Phased Array Radar |
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