CN103916609B - Infrared camera integration sequence caliberating device - Google Patents
Infrared camera integration sequence caliberating device Download PDFInfo
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- CN103916609B CN103916609B CN201410109325.3A CN201410109325A CN103916609B CN 103916609 B CN103916609 B CN 103916609B CN 201410109325 A CN201410109325 A CN 201410109325A CN 103916609 B CN103916609 B CN 103916609B
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- shutter
- incremental encoder
- infrared camera
- motor
- integration sequence
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- 230000010354 integration Effects 0.000 title claims abstract description 29
- 230000005855 radiation Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000010606 normalization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Abstract
Infrared camera integration sequence caliberating device, is applied to camera exposure time calibrating, is to solve the problems, such as that prior art cannot carry out accurate calibration to infrared camera integration sequence, and the device motor, shutter are connected by transmission lever with incremental encoder；The angular aperture center line of shutter is alignd with the zero-bit of incremental encoder；Control system is united external synchronization signal when receiving, and the zero signal that provided by incremental encoder, SIN signals, COS signals are used as feedback element and enter horizontal lock and test the speed, and complete the closed loop of speed loop and position loop, realize the control to motor；Control system motor, motor drive disc type shutter and incremental encoder by transmission lever, make the angular aperture center line of shutter, the zero signal of incremental encoder and when unite external synchronization signal stringent synchronization；Control infrared camera can eventually arrive at the time of camera target surface in the light that infrared radiation source sends by the shutter opening angle center line of parallel light tube and shutter, and the device normalization accuracy is strong, easy to use.
Description
Technical field
The present invention relates to infrared camera integration sequence caliberating device, is mainly used in the demarcation and control of infrared camera integration sequence
System, the quality for improving infrared camera output image.Simultaneously can also be applied in industrial production and engineering to the camera exposure time,
The logical relation of data output is demarcated and is controlled.Belong to infrared camera applied technical field.
Background technology
At present, infrared camera works under outer synchronous situation, and integration sequence has two kinds substantially, and one kind is that external synchronization signal is arrived
Start to integrate after coming, one kind is integration before external synchronization signal arrives, that is, integrate the moment uncertain.Even if same producer, same class
, can also there is sometimes deviation in type camera.So the subsequent treatment of image will be impacted, it is especially tighter to timing requirements
The digital picture storage of lattice, makes the image and temporal information of storage correspond.
In order to solve the above problems, its key technology is that the integration sequence to every infrared camera is demarcated.Traditional
Camera calibration method is to adopt stroboscope, when system output two-way synchronizing signal, the outer synchronization as camera all the way, all the way as point
The pulse signal of intense flash instrument.Integration sequence is demarcated by imaging when checking that stroboscope is lighted on camera.But
This kind of method is only applicable to visible camera, when demarcating infrared camera with this kind of method, temperature of still having a surplus after being extinguished due to stroboscope, still
So can be imaged on infrared camera, it is impossible to obtain accurate integration sequence relation.Therefore invented it is a kind of can be to infrared camera
The device demarcated by integration sequence, carries out the requirement of high-precision calibrating to meet the integration sequence to infrared camera.
The content of the invention
In order to the infrared camera integration sequence for solving prior art presence does not know, stroboscope can only demarcate visible camera product
Timesharing sequence, it is impossible to which the technical problem of accurate calibration is carried out to infrared camera integration sequence, the invention provides a kind of infrared camera
Integration sequence caliberating device, can carry out accurate calibration to every infrared camera integration sequence, and improve the output image of camera
Quality.
The technical scheme taken by present invention solution technical problem is as follows：
Infrared camera integration sequence caliberating device, the device include motor, control system, shutter, transmission lever, directional light
Pipe, infrared radiation source and incremental encoder；
Motor, shutter and incremental encoder are arranged in transmission lever from left to right；Control system is connected with motor；Shutter
The zero line of angular aperture center line and incremental encoder is debug in advance, makes both strictly keep alignment；What infrared radiation source sent
Light outgoing directional light after parallel light tube, directional light is through shutter opening angle outgoing；
When system simultaneously give control system and infrared camera by external synchronization signal；System outer synchronous letter when control system is received
Number, the zero signal that provided by incremental encoder, SIN signals, COS signals are used as feedback element and enter horizontal lock and test the speed, complete
Into speed loop and the closed loop of position loop, the control to motor is realized；Motor drives disc type shutter and increasing by transmission lever
Amount encoder, makes the zero-bit stringent synchronization of external synchronization signal and incremental encoder, and signal phase is consistent；Can so control infrared
Camera eventually arrives at infrared camera target by the shutter opening angle center line of parallel light tube and shutter in the light that infrared radiation source sends
The time in face.
The invention has the beneficial effects as follows：The system realizes the demarcation of infrared camera integration sequence, after being infrared image
It is continuous to process there is provided powerful guarantee, and improve the quality of camera output image.The system is according to infrared camera practical application, complete
Realize full the demarcation of single camera integration sequence, accuracy is strong, working stability, low cost, easy to use, compared with equipment phase
Than with broader use range and superiority.
Description of the drawings
Fig. 1 is infrared camera integration sequence caliberating device structural representation.
Fig. 2 is infrared camera integration sequence staking-out work block diagram.
Fig. 3 is infrared camera integration sequence caliberating device signal timing diagram.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail.
As shown in figure 1, infrared camera integration sequence caliberating device of the present invention includes：Motor 1, control system 2, shutter 3, biography
Pass bar 4, parallel light tube 5, infrared radiation source 6 and incremental encoder 7.
Motor 1, shutter 3 and incremental encoder 7 are arranged in transmission lever 4 from left to right；Control system 2 is connected with motor 1；
Shutter 3 and incremental encoder 7 are debug in advance, make 3 angular aperture center line of shutter align with 7 zero-bit of incremental encoder；It is infrared
The light that source 6 sends outgoing directional light after parallel light tube 5, directional light is through shutter opening angle outgoing.
As shown in Fig. 2 when system be responsible for control system 2, infrared radiation source 6 and infrared camera external synchronization signal, with ensure demarcate
Device and infrared camera are operated under same sequential.
Control system 2 is united external synchronization signal when receiving, the zero signal provided by incremental encoder 7, SIN signals, COS
Signal enters horizontal lock as feedback element and tests the speed, and completes the closed loop of speed loop and position loop, realizes the control to motor 1
System.Motor 1 is using direct current generator as executive component.
Motor 1, control system 2 and incremental encoder 7 constitute a double loop system, and inner ring is speed loop, for protecting
The motion frequency for holding shutter 3 is identical with outer synchronizing frequency；Outer shroud is position loop, for ensureing the zero line of incremental encoder 7
With external synchronization signal stringent synchronization.
2 motor 1 of control system, motor 1 drive disc type shutter 3 and incremental encoder 7 by transmission lever 4, make outer
Synchronizing signal is consistent with the zero signal phase place of incremental encoder 7.Sequential relationship is as shown in figure 3, system issues infrared camera when a is
External synchronization signal, trailing edge is effective；When b is, system issues the external synchronization signal of infrared radiation source 6, for lighting the light source of infrared radiation source；c
For the phase pulse signal of shutter opening angle output of incremental encoder 7 when maximum；D is the infrared source light for reaching infrared camera target surface
Source energy exemplary waveforms；Energy when e bold portions are infrared radiation source light source igniting, dotted portion are energy when extinguishing.
So may insure that infrared camera can be opened by the shutter of parallel light tube 5, shutter 3 in the light that infrared radiation source 6 sends
Bicker center line is reached knowable to the time of camera target surface, if can be imaged in camera target surface, illustrates infrared energy by shutter
Time is consistent with the time of integration of camera, if the two is inconsistent, can not be imaged in camera target surface.
Infrared radiation source 6 adopts external face source black matrix, and temperature range is normal temperature～100 DEG C.5 bore 100mm of parallel light tube, function
When the spot light that infrared radiation source 6 sends be converted into into directional light send.
Claims (4)
1. infrared camera integration sequence caliberating device, is characterized in that, the device includes motor (1), control system (2), shutter
(3), transmission lever (4), parallel light tube (5), infrared radiation source (6) and incremental encoder (7)；
Motor (1), shutter (3) and incremental encoder (7) are arranged in transmission lever (4) from left to right；Control system (2) and motor
(1) it is connected；The zero line of the angular aperture center line of shutter (3) and incremental encoder (7) is debug in advance, both is strictly protected
Hold alignment；The light that infrared radiation source (6) sends outgoing directional light after parallel light tube (5), directional light is through shutter opening angle outgoing；
When system simultaneously give control system (2) and infrared camera by external synchronization signal；System outer synchronous letter when control system (2) is received
Number, the zero signal that provided by incremental encoder (7), SIN signals, COS signals are used as feedback element and enter horizontal lock and test the speed,
The closed loop of speed loop and position loop is completed, the control to motor (1) is realized；Motor (1) drives disk by transmission lever (4)
Formula shutter (3) and incremental encoder (7), make the zero signal stringent synchronization of external synchronization signal and incremental encoder (7), signal phase
Position is consistent；Light that infrared camera sent in infrared radiation source (6) can so be controlled by the fast of parallel light tube (5) and shutter (3)
Door opening angle center line eventually arrives at the time of infrared camera target surface.
2. infrared camera integration sequence caliberating device according to claim 1, motor (1), control system (2) and increment are compiled
Code device (7) constitutes a double loop system, and inner ring is speed loop, for keeping the motion frequency of shutter (3) and outer synchronizing band
Rate is identical；Outer shroud is position loop, for ensureing the zero signal of incremental encoder (7) and external synchronization signal stringent synchronization.
3. infrared camera integration sequence caliberating device according to claim 1, parallel light tube (5) bore 100mm, function is
The spot light that infrared radiation source (6) sends is converted into directional light to send.
4. infrared camera integration sequence caliberating device according to claim 1, infrared radiation source (6) using external face source black matrix,
Temperature range is normal temperature～100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109325.3A CN103916609B (en) | 2014-03-21 | 2014-03-21 | Infrared camera integration sequence caliberating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109325.3A CN103916609B (en) | 2014-03-21 | 2014-03-21 | Infrared camera integration sequence caliberating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103916609A CN103916609A (en) | 2014-07-09 |
| CN103916609B true CN103916609B (en) | 2017-04-05 |
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| CN201410109325.3A Expired - Fee Related CN103916609B (en) | 2014-03-21 | 2014-03-21 | Infrared camera integration sequence caliberating device |
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| CN109307979A (en) * | 2017-07-28 | 2019-02-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of curtain seam focal plane shutter and breadth signal detection mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006319602A (en) * | 2005-05-12 | 2006-11-24 | Mitsubishi Electric Corp | Solid-state image pickup apparatus and method for detecting flicker defect |
| WO2009154533A1 (en) * | 2008-06-19 | 2009-12-23 | Flir Systems Ab | Device for imaging within the ir range |
| CN103335716A (en) * | 2013-06-21 | 2013-10-02 | 中国科学院西安光学精密机械研究所 | Area array infrared camera calibration and non-uniformity correction method based on variable integration time |
| CN103475821A (en) * | 2013-10-11 | 2013-12-25 | 中科院微电子研究所昆山分所 | Adjustment method based on automatic integration time of near infrared camera |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8569684B2 (en) * | 2009-11-06 | 2013-10-29 | Steven J. Olson | Infrared sensor control architecture |
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2014
- 2014-03-21 CN CN201410109325.3A patent/CN103916609B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006319602A (en) * | 2005-05-12 | 2006-11-24 | Mitsubishi Electric Corp | Solid-state image pickup apparatus and method for detecting flicker defect |
| WO2009154533A1 (en) * | 2008-06-19 | 2009-12-23 | Flir Systems Ab | Device for imaging within the ir range |
| CN103335716A (en) * | 2013-06-21 | 2013-10-02 | 中国科学院西安光学精密机械研究所 | Area array infrared camera calibration and non-uniformity correction method based on variable integration time |
| CN103475821A (en) * | 2013-10-11 | 2013-12-25 | 中科院微电子研究所昆山分所 | Adjustment method based on automatic integration time of near infrared camera |
Non-Patent Citations (1)
| Title |
|---|
| 空间红外相机标定机构的设计与随机振动分析;孙德伟;《红外与激光工程》;20131215;全文 * |
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