CN202661878U - Pointing-acquiring-tracking device - Google Patents
Pointing-acquiring-tracking device Download PDFInfo
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- CN202661878U CN202661878U CN2012201561866U CN201220156186U CN202661878U CN 202661878 U CN202661878 U CN 202661878U CN 2012201561866 U CN2012201561866 U CN 2012201561866U CN 201220156186 U CN201220156186 U CN 201220156186U CN 202661878 U CN202661878 U CN 202661878U
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Abstract
The utility model discloses a pointing-acquiring-tracking device, comprising an optical receiving device, an image detector, a video signal acquisition module, an image processing and error processing module, an angle transformation processing module, a controller, a driver, a direct-current torque motor and an optical wedge. Via the pointing-acquiring-tracking device disclosed by the utility model, the accuracy of a pointing-acquiring-tracking system can be improved, the structure can be simplified, and the volume can be reduced; and the pointing-acquiring-tracking device is more suitable for a space-borne optical transceiver. Particularly, the pointing-acquiring-tracking device is suitable for a coarse tracking system for space-to-ground laser communication, and for realizing tracking in a tracking field of view.
Description
Technical field
The utility model relates to a kind of aiming acquisition and tracking device, can realize by this device the accurate aiming acquisition and tracking of light, is particularly useful for the thick tracker of vacant lot laser communication, realizes the tracking in tracking field of view, belongs to the laser communication technology field.
Background technology
Laser communication has the advantages such as message capacity is large, transfer rate is high, good confidentiality, and is low in energy consumption, has become the developing direction of space communtication, has a good application prospect, and every country is all paid much attention to the research to space optical communication.Because the factors such as motion of the less and laser communication terminal platform of the Communication ray angle of divergence, so that beam alignment has larger difficulty, therefore, need to catch, tracking, alignment system realize that light beam accurately aims at, wherein tracker is particularly important.Traditional APT (aiming acquisition and tracking) system generally all adopts the composite shaft control structure.Two control loops are arranged, the thick tracking loop of low bandwidth and high bandwidth smart tracking loop.The initial orientation of optical axis is mainly finished in thick tracking, realizes catching and following function, and tracking accuracy is relatively very low.Outer universal joint consists of thick tracking loop, it has large dynamic range, narrow control bandwidth, the critical piece of outer smart tracking loop all adopts quick titling mirror at present both at home and abroad in a large number, require it to proofread and correct to satisfy the final aligning of system and tracking accuracy requirement to the residual error that thick tracking loop fails to compensate, therefore smart tracking loop should have wider control bandwidth and higher gain, can have stronger inhibition ability, the so quick and high-precision aligning of guarantee and tracking to wide power spectrum vibration.Adopt the tracker critical piece of gimbal rotating manner to be: receiving antenna, gimbal, detection reception, processing element etc.The sensitive detection parts of system are elected the high sensitivity position transducer diaxon high bandwidth quick titling mirrors such as four quadrant infrared detector QD, CCD etc. usually as.Because this scheme promotes two picture frames respectively around transverse axis, Z-axis deflection by the motor screw of linear stepping motor by gear train, and all there are inevitable intrinsic driving error in the screw structure in the linear stepping motor and gear train, therefore, the adjustment of wedge deflection is inevitable also to exist error, descends thereby cause following the tracks of alignment precision; Simultaneously, this apparatus structure is complicated, compact not, and volume is larger, is not suitable for spaceborne fiber optic tracker.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of aiming acquisition and tracking device, and it can simplified structure, reduce volume when improving aiming acquisition and tracking system accuracy, thereby is suitable for spaceborne fiber optic.
Technical scheme: in order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of aiming acquisition and tracking device, comprise optical receiver assembly, image detector, video signal collective module, image processing and Error processing module, angular transformation processing module, controller, driver, direct current torque motor and wedge, wherein:
Optical receiver assembly receives light and output optical signal;
Image detector receives the light signal that optical receiver assembly is exported, output electrical signals;
The video signal collective module receives the electric signal that image detector is exported, output digit signals;
Image is processed and the Error processing module, the digital signal of receiving video signals acquisition module output, the deviate at output light and desirable CCD center;
The angular transformation processing module receives described deviate, and this deviate is fed through controller;
Controller sends steering order;
Driver receives the steering order that controller sends, and links to each other with wedge by direct current torque motor.
Wherein, described image detector is ccd image detector or four quadrant infrared detector (QD) or position sensor (PSD).
Wherein, described controller is LM629.LM629 is the special-purpose motion control processor of full digital control.Just can consist of a servo-drive system by incremental photoelectrical coded disk of a slice single-chip microcomputer a slice LM629 direct current motor of a slice analog line driver.LM629N is the NMOS structure, adopts 28 pin dual-in-line package, uses 6MHZ or 8ZHZ clock frequency and 5V power work.
Wherein, described driver is LMD18200.LMD18200 is exclusively used in direct current motor driven H axle assemble.
Principle of work of the present utility model: during work, laser beam is responsible for reception by optical receiver assembly, and optical receiver assembly passes to image detector to the light that receives, and image detector can change light signal into electric signal; Obtain digital signal after the electric signal process video signal collective resume module, and this digital signal is sent into image process and the Error processing resume module, obtain the deviate at light and desirable CCD center; Can quantize this deviate after this deviate process angular transformation processing module; The analysis of angular transformation processing module is sent to controller to deviate, and controller sends steering order to driver, the motion of driver drives direct current torque motor, and direct current torque motor drives wedge and rotates to the control position.
Beneficial effect: compared with prior art, the utility model has the advantages that: can improve aiming acquisition and tracking system accuracy, can also simplified structure, reduce volume, more be applicable to spaceborne fiber optic.The thick tracker that is particularly useful for vacant lot laser communication realizes the tracking in tracking field of view.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of aiming acquisition and tracking of the utility model device comprises optical receiver assembly 1, ccd image detector 2, video signal collective module 3, image processing and Error processing module 4, angular transformation processing module 5, controller 6, driver 7, direct current torque motor 8 and wedge 9.Wherein ccd image detector 2 uses is PULNIX(Japan handkerchief Knicks company) model be the image detector of TM6710CL; Controller 6 is LM629, and driver 7 is LMD18200.
During system works, at first optical receiver assembly 1 receives the laser beam of being launched by the ground light terminal, and the light that receives is passed to ccd image detector 2, and ccd image detector 2 can change light signal into electric signal.Electric signal obtains digital signal after processing through video signal collective module 3, and this digital signal is sent into image process and 4 processing of Error processing module, obtains the deviate at light and desirable CCD center.Can quantize this deviate after this deviate process angular transformation processing module 5.Angular transformation processing module 5 is analyzed deviate is sent to controller 6.Controller 6 sends steering order to driver 7, drives and direct current torque motor 8 motions by driver 7 again, and direct current torque motor 8 drives wedge 9 and rotates to the control position.
Above-mentioned ccd image detector 2 also can be replaced by four quadrant infrared detector (QD) or position sensor (PSD).
In the utility model, the quantity of controller 6 can have more than two, and the quantity of driver 7, direct current torque motor 8 and wedge 9 equates with the quantity of controller so, specifically as shown in Figure 2.
It below only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications; can also make cylinder sleeve other products in addition, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. one kind is aimed at the acquisition and tracking device, it is characterized in that, comprise optical receiver assembly, image detector, video signal collective module, image processing and Error processing module, angular transformation processing module, controller, driver, direct current torque motor and wedge, wherein:
Optical receiver assembly receives light and output optical signal;
Image detector receives the light signal that optical receiver assembly is exported, output electrical signals;
The video signal collective module receives the electric signal that image detector is exported, output digit signals;
Image is processed and the Error processing module, the digital signal of receiving video signals acquisition module output, the deviate at output light and desirable CCD center;
The angular transformation processing module receives described deviate, and this deviate is fed through controller;
Controller sends steering order;
Driver receives the steering order that controller sends, and links to each other with wedge by direct current torque motor.
2. a kind of aiming acquisition and tracking device according to claim 1 is characterized in that, described image detector is ccd image detector or four quadrant infrared detector or position sensor.
3. a kind of aiming acquisition and tracking device according to claim 1 is characterized in that, described controller is LM629.
4. a kind of aiming acquisition and tracking device according to claim 1 is characterized in that, described driver is LMD18200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201561866U CN202661878U (en) | 2012-04-13 | 2012-04-13 | Pointing-acquiring-tracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201561866U CN202661878U (en) | 2012-04-13 | 2012-04-13 | Pointing-acquiring-tracking device |
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| Publication Number | Publication Date |
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| CN202661878U true CN202661878U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201561866U Expired - Fee Related CN202661878U (en) | 2012-04-13 | 2012-04-13 | Pointing-acquiring-tracking device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501830A (en) * | 2014-11-28 | 2015-04-08 | 苏州迅威光电科技有限公司 | Automatic coded disk component testing platform and operation method thereof |
| CN108592887A (en) * | 2018-05-01 | 2018-09-28 | 中国海洋大学 | A kind of submarine optical communication automatic aiming acquisition and tracking device |
| CN108833813A (en) * | 2018-07-13 | 2018-11-16 | 中国船舶重工集团公司第七〇九研究所 | A kind of ATP hot spot trapping module |
| CN109246371A (en) * | 2018-07-13 | 2019-01-18 | 中国船舶重工集团公司第七〇九研究所 | A kind of hot spot capture systems and method |
| CN111380399A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院长春光学精密机械与物理研究所 | Projectile body capturing method, optical measurement equipment, terminal and storage medium |
| CN114236714A (en) * | 2021-12-24 | 2022-03-25 | 网络通信与安全紫金山实验室 | Wireless optical communication receiving device and method based on light beam correction |
-
2012
- 2012-04-13 CN CN2012201561866U patent/CN202661878U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501830A (en) * | 2014-11-28 | 2015-04-08 | 苏州迅威光电科技有限公司 | Automatic coded disk component testing platform and operation method thereof |
| CN104501830B (en) * | 2014-11-28 | 2017-06-30 | 苏州迅威光电科技有限公司 | Code-disc component automatically testing platform and its operating method |
| CN108592887A (en) * | 2018-05-01 | 2018-09-28 | 中国海洋大学 | A kind of submarine optical communication automatic aiming acquisition and tracking device |
| CN108592887B (en) * | 2018-05-01 | 2024-03-29 | 中国海洋大学 | Automatic aiming, capturing and tracking device for underwater optical communication |
| CN108833813A (en) * | 2018-07-13 | 2018-11-16 | 中国船舶重工集团公司第七〇九研究所 | A kind of ATP hot spot trapping module |
| CN109246371A (en) * | 2018-07-13 | 2019-01-18 | 中国船舶重工集团公司第七〇九研究所 | A kind of hot spot capture systems and method |
| CN109246371B (en) * | 2018-07-13 | 2021-05-07 | 中国船舶重工集团公司第七一九研究所 | Light spot capturing system and method |
| CN111380399A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院长春光学精密机械与物理研究所 | Projectile body capturing method, optical measurement equipment, terminal and storage medium |
| CN111380399B (en) * | 2018-12-29 | 2021-08-20 | 中国科学院长春光学精密机械与物理研究所 | Projectile body capturing method, optical measurement equipment, terminal and storage medium |
| CN114236714A (en) * | 2021-12-24 | 2022-03-25 | 网络通信与安全紫金山实验室 | Wireless optical communication receiving device and method based on light beam correction |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150413 |
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| EXPY | Termination of patent right or utility model |