CN104683695A - Multiplexing self-repairing image processing system for spaceflight - Google Patents
Multiplexing self-repairing image processing system for spaceflight Download PDFInfo
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- CN104683695A CN104683695A CN201510082055.6A CN201510082055A CN104683695A CN 104683695 A CN104683695 A CN 104683695A CN 201510082055 A CN201510082055 A CN 201510082055A CN 104683695 A CN104683695 A CN 104683695A
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Abstract
The invention provides a multiplexing self-repairing image processing system for spaceflight. The multiplexing self-repairing image processing system comprises a main control module, a data source module and a processing and analyzing module, wherein the main control module comprises a control unit, a data processing unit and a time-sequence judging unit; the data source module comprises a plurality of cameras; the processing and analyzing module comprises a plurality of data processing and analyzing units; the time-sequence judging unit judges whether the current data processing and analyzing unit has a failure or not through the time sequence in which the data processing unit receives compressed image data sent by the data processing and analyzing units, and performs initialization, and besides, the data processing and analyzing units calculate DN values of the image data so as to regulate the image data quality of the cameras. The multiplexing self-repairing image processing system disclosed by the invention supports the input of different formats of image data and can be adapted to the camera application of various satellite interfaces; the multiplexing self-repairing image processing system can automatically complete the detection and repair of failures, so that working efficiency and reliability of the image processing system are improved.
Description
Technical field
The present invention relates to a kind of image processing system being applicable to space flight, particularly a kind of multiplexed selfreparing image processing system being applicable to space flight.
Background technology
Image processing techniques for CCD and CMOS in current space industry is varied, and the image processing system of traditional AEROSPACE APPLICATION is the system of single channel input and output, do not support that multichannel different images data carry out parallel processing, integrated level is lower, simultaneously can not automatic fault detection and complete reparation when breaking down.
The space flight optical remote sensor image procossing in-orbit of Changchun Institute of Optics, Fine Mechanics and Physics, CAS's development and simulating analysis, can realize the automatic focusing in-orbit to separate unit optical sensor and correction.External Intersil Inc provides a kind of method that Read-write Catrol and frame per second control are carried out in input for different video source, but does not process image or video data, does not have information to control and feedback regulation simultaneously.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provides a kind of Highgrade integration, the multiway images data-reusing and can the image processing system system of self-regeneration that are applicable to space flight.
Technical solution of the present invention is: a kind of multiplexed selfreparing image processing system being applicable to space flight, comprising: main control module, data source modules, Treatment Analysis module, wherein
Main control module, comprises control unit, data processing unit, sequential judging unit; Camera after control unit receives the satellite remote command of extraneous input in control data source module sends view data to data processing unit, receives the DN value information of the view data that data processing unit sends and delivers to data source modules; Data processing unit, the data length needed according to data processing and analytic unit compression after receiving view data carries out subpackage, obtains subpackage view data and delivers to data processing and analytic unit in Treatment Analysis module; Receive the data processing in process analysis module and the compressing image data of analytic unit transmission, the DN value information of view data, the DN value information of view data is delivered to control unit, the reception sequential of compressing image data is delivered to sequential judging unit; Sequential judging unit, Monitoring Data processing unit receives the reception sequential of compressing image data, and the reception sequential of compressing image data and built-in sequential are contrasted, if the reception sequential of compressing image data is identical with built-in sequential, then compressing image data exports by control data processing unit, otherwise control data processing unit abandons this compressing image data, make current data process and analytic unit initialization in Treatment Analysis module, and the remainder data process delivered to after subpackage next time of control data processing unit in Treatment Analysis module and analytic unit; Described built-in sequential is order and the time of compressing image data transmission built-in in sequential judging unit, data processing and analytic unit;
Data source modules, comprises multichannel camera, receives the DN value information of the view data that the control unit in main control module sends and controls time for exposure of Current camera;
Treatment Analysis module, comprise at least 2 data processings and analytic unit, wherein, 1 data processing and analytic unit is always had to be current working unit in Treatment Analysis module, remainder data processing unit is Hot Spare, current working unit, receives the subpackage view data that data processing unit sends, carry out the DN value information statistics of compression and view data, and the DN value information of compressing image data, view data is delivered to the data processing unit of main control module according to built-in sequential.
The present invention's advantage is compared with prior art:
(1) when breaking down in image processing system of the present invention, can automatic decision repairing, if current data process and analytic unit abnormal state, then next view data is transferred to remainder data process and analytic unit, control abnormal data processing and analytic unit initialization simultaneously, automatic repair process controls adjustment without the need to the instruction of satellite system, improves operating efficiency and the reliability of image processing system;
(2) image processing system of the present invention supports the view data input of multichannel different-format, receives, processes and compression, can adapt to the camera applications of satellite multiple interfaces while achieving multichannel data;
(3) in image processing system of the present invention, Treatment Analysis module is analyzed and the DN value information of statistical picture data while carrying out compressing process to data, then according to the exposure of camera in the DN value information feedback regulation data source modules of view data to adjust view data;
(4) in image processing system of the present invention, Treatment Analysis module comprises at least 2 data processings and analytic unit, redundancy backup has been carried out to the unit realizing image processing and analyzing function, add the reliability of system, can better adapt to satellite application environment.
Accompanying drawing explanation
Fig. 1 is a kind of multiplexed selfreparing image processing system schematic diagram being applicable to space flight of the present invention.
Embodiment
As shown in Figure 1, a kind of multiplexed selfreparing image processing system being applicable to space flight of the present invention, comprise main control module, data source modules, Treatment Analysis module, wherein, main control module comprises control unit, data processing unit, sequential judging unit, data source modules comprises multichannel camera, and Treatment Analysis module comprises multiple data processing and analytic unit.
In main control module, control unit receives the view data of multichannel camera on satellite, according to the remote control command of satellite, the camera data needed is sent into the data processing unit of main control module by the camera in control data source module, is forwarded to data source modules after receiving the DN value information of the view data that data processing unit sends; After data processing unit receives view data, carry out subpackage and data processing subpackage view data sent in Treatment Analysis module and analytic unit; Data processing in Treatment Analysis module and analytic unit compress view data, and the DN value information in statistical computation view data, then the view data after compression is delivered to the data processing unit sent to DN value information in main control module, data processing unit receive compression after view data deliver to DN value information after, DN value information is delivered to control unit, compressing image data is exported to sequential judging unit according to built-in sequential; Sequential judging unit, Monitoring Data processing unit receives the sequential of compressing image data and the reception sequential of compressing image data and built-in sequential is contrasted, if the reception sequential of compressing image data meets built-in sequential, then compressing image data exports by control data processing unit, otherwise control data processing unit abandons this compressing image data, make current data process and analytic unit initialization in Treatment Analysis module, and the remainder data process delivered to after subpackage next time of control data processing unit in Treatment Analysis module and analytic unit; Control unit receives the DN value information of view data, and will deliver to data source modules according to DN value information and control camera and carry out automatic exposure; Wherein, built-in sequential is order and the time of compressing image data transmission built-in in sequential judging unit, data processing and analytic unit; Data source modules, receives the DN value information of the view data that the control unit in main control module sends and controls time for exposure of Current camera, being wherein initialized as and reconfiguring current data process and analytic unit according to built-in sequential.
Image processing system integrated level of the present invention is high, can complete multichannel data parallel processing, and automatic fault tolerant repair function can avoid whole star surface instruction to control, and saving can the communication resource improve the operating efficiency of image processing system.
The content be not described in detail in specification of the present invention belongs to the known technology of those skilled in the art.
Claims (1)
1. be applicable to a multiplexed selfreparing image processing system for space flight, it is characterized in that comprising: main control module, data source modules, Treatment Analysis module, wherein
Main control module, comprises control unit, data processing unit, sequential judging unit; Camera after control unit receives the satellite remote command of extraneous input in control data source module sends view data to data processing unit, receives the DN value information of the view data that data processing unit sends and delivers to data source modules; Data processing unit, the data length needed according to data processing and analytic unit compression after receiving view data carries out subpackage, obtains subpackage view data and delivers to data processing and analytic unit in Treatment Analysis module; Receive the data processing in process analysis module and the compressing image data of analytic unit transmission, the DN value information of view data, the DN value information of view data is delivered to control unit, the reception sequential of compressing image data is delivered to sequential judging unit; Sequential judging unit, Monitoring Data processing unit receives the reception sequential of compressing image data, and the reception sequential of compressing image data and built-in sequential are contrasted, if the reception sequential of compressing image data is identical with built-in sequential, then compressing image data exports by control data processing unit, otherwise control data processing unit abandons this compressing image data, make current data process and analytic unit initialization in Treatment Analysis module, and the remainder data process delivered to after subpackage next time of control data processing unit in Treatment Analysis module and analytic unit; Described built-in sequential is order and the time of compressing image data transmission built-in in sequential judging unit, data processing and analytic unit;
Data source modules, comprises multichannel camera, receives the DN value information of the view data that the control unit in main control module sends and controls time for exposure of Current camera;
Treatment Analysis module, comprise at least 2 data processings and analytic unit, wherein, 1 data processing and analytic unit is always had to be current working unit in Treatment Analysis module, remainder data processing unit is Hot Spare, current working unit, receives the subpackage view data that data processing unit sends, carry out the DN value information statistics of compression and view data, and the DN value information of compressing image data, view data is delivered to the data processing unit of main control module according to built-in sequential.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060140499A1 (en) * | 2004-12-29 | 2006-06-29 | Samsung Electronics Co., Ltd. | Apparatus and method for data processing by using plurality of data processing apparatuses and recording medium storing program for executing the method |
| CN102665098A (en) * | 2012-05-03 | 2012-09-12 | 浙江宇视科技有限公司 | Video encoder |
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| US20060140499A1 (en) * | 2004-12-29 | 2006-06-29 | Samsung Electronics Co., Ltd. | Apparatus and method for data processing by using plurality of data processing apparatuses and recording medium storing program for executing the method |
| CN102665098A (en) * | 2012-05-03 | 2012-09-12 | 浙江宇视科技有限公司 | Video encoder |
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