CN105472286A - Airborne video synthesizing and recording device - Google Patents
Airborne video synthesizing and recording device Download PDFInfo
- Publication number
- CN105472286A CN105472286A CN201510959824.6A CN201510959824A CN105472286A CN 105472286 A CN105472286 A CN 105472286A CN 201510959824 A CN201510959824 A CN 201510959824A CN 105472286 A CN105472286 A CN 105472286A
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- video
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- airborne
- tape deck
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The invention discloses an airborne video synthesizing and recording device, comprising a signal video collecting unit, a video processing unit, a video recording unit, a video storage unit, a video output unit and a communication control unit which are in signal transmission connection. The device can manage and monitor the whole task system through all-way synthesized video; when the task system needed to be analyzed, the current working state of every sub-unit can be rapidly analyzed through the synthesized video; further analysis is carried out by invoking single-way video; the video synthesizing and recording device can improve executing efficiency of the airborne task system, simultaneously the video recording files are important reference basis for carrying out fault analysis to the task system.
Description
Technical field
The invention belongs to technical field of video processing, be specifically related to the synthesis of a kind of Airborne Video System and tape deck.
Background technology
Display is the important interactive interface of air environment and locomotive work personnel.Along with the development of airborne rear deck task system, aerial mission is day by day complicated, the air environment kind and the quantity that carry various function also get more and more, and can only pay close attention to important display information when locomotive work personnel execute the task, and have no alternative but ignore the lower display information of those importance degrees.But for aerial mission, all display information is all important, indispensable.Therefore, task system needs a set of Video Composition and tape deck, carrys out the whole display information in logger task implementation.Airborne Video System synthesis and tape deck possess following characteristics: a) air environment kind is many, and performance is more and more powerful, so tape deck at least has the video reception ability on 4 tunnels, and single channel video resolution can reach high definition 1080P; B) video output interface of air environment is not quite similar, and tape deck should be able to receive common video format; C) in the execution overall process of task, the resolution of each airborne equipment output video is change, and therefore tape deck should support the dynamic change of video resolution, records the video information under all resolution; D) tape deck possesses Video Composition function, facilitates the labor of aerial mission; E) tape deck possesses Video Output, can export arbitrary road input video or synthetic video.
Summary of the invention
The object of this invention is to provide a kind of Video Composition and the tape deck that are applicable to airborne task system.
Above-mentioned purpose of the present invention, to be achieved by the following technical programs: a kind of Airborne Video System synthesis and tape deck, is characterized in that: comprise signal video frequency collecting unit, video processing unit, video recording unit, video storage unit, video output unit and communication control unit:
Described video acquisition unit, for receiving the video of outside input, and carry out video format conversion, output digital video signal is to video processing unit;
Described video processing unit, for the digital video signal that receiver, video collecting unit exports, does unified resolution process and exports to video recording unit by vision signal;
Described video recording unit, for the digital video after receiver, video processing unit processes, carries out multi-channel video synthesis, single channel video compression, synthetic video compression, forms H.264 code stream, be written to video storage unit;
Described video storage unit, be a capacity and speed satisfy the demands write memory device;
Described video output unit, for exporting the video flowing after single channel or multichannel synthesis;
Described communication control unit, for receiving external control order, sending instruction to plurality of cells, controls the operation of corresponding video code stream to complete.
Further, described video acquisition unit correspondence gathers the video of one or more non-limiting form.
Further, the input video resolution dynamic change of described video acquisition unit, and highest resolution 1080P.
Further, described video processing unit comprises one piece of programmable logic device, and described unified resolution is the ultimate resolution of video input.
Further, the output of described video output unit is the video flowing of numeral or simulation.
Further, described video recording unit, video output unit and communication control unit are integrated among a video compressing module.
The application implementation of technical solution of the present invention, the remarkable advantage comparing to prior art is: this device does not limit the form of input video, and the resolution of input video can dynamic change, simultaneously can by arbitrary single channel video or multichannel synthetic video output display.These distinguishing features make Video Composition and tape deck be highly suitable for some airborne task system, the work video of each subelement of device complete documentation is (startup stage of comprising, working stage, the end-of-job stage, each stage resolution is different, the video format that each subelement exports also is not quite similar), and by synthetic video output display, locomotive work personnel just can complete the management and monitoring to whole task system by a road synthetic video, when needs are analyzed task system, each subelement operating state at that time can be analyzed rapidly by synthetic video, and call single channel video and further analyze.Video Composition and tape deck can improve the execution efficiency of airborne task system, and simultaneously videograph file is also the important reference of task system when carrying out accident analysis.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of a kind of Airborne Video System synthesis of the present invention and tape deck.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.
The invention provides the synthesis of a kind of Airborne Video System and tape deck, specific to application scenarios, described Airborne Video System synthesis and tape deck can be used for airborne task system.See Fig. 1, described Airborne Video System synthesis and tape deck comprise video acquisition unit 101, video processing unit 102, video recording unit 103, video storage unit 104, video output unit 105 and communication control unit 106.
In described video acquisition unit 101, comprise many group video acquisition modular converters, each group video acquisition modular converter can gather a road input video, and converts digital video frequency flow output to.For the form of input video, can be simulation, or numeral, the present invention does not limit.In the present embodiment, video acquisition unit 101 comprises three groups of video acquisition modular converters, can receive three road input videos simultaneously.Wherein video 1 resolution comprises 1600x1200,1024x768,800x600; Video 2 resolution comprises 1024x768,640x480; Video 3 resolution comprises 1400x1050,800x600.The video source of video acquisition modular converter cycle detection input, and video source information is sent to communication control unit 106 by bus, communication control unit 106 pairs of video source information are analyzed, and by bus, video acquisition modular converter is configured, make it the digital video bit stream exporting corresponding resolution.When arbitrary road input resolution changes, communication control unit 106 reconfigures corresponding video acquisition modular converter.
Described video processing unit 102, comprises one piece of programmable logic device, the digital video bit stream that receiver, video collecting unit exports, and does unified resolution process.The present invention is not specifically limited unified resolution, can be conventional resolution.In the present embodiment, video 1 resolution is unified into 1600x1200, and video 2 resolution is unified into 1024x768, and video 3 resolution is unified into 1400x1050.Programmable logic device does the video being less than unified resolution and amplifies process, exports the digital video bit stream of unified resolution.
Described video recording unit 103, the unified resolution digital video bit stream that receiver, video processing unit 102 exports, carry out three road Video Composition, contain in building-up process operations such as the reducing of original video, rotations, arbitrary single channel video code flow or synthetic video code stream are exported to video output unit 105; H.264 compressed encoding is done to single channel video code flow and synthetic video code stream simultaneously, be written to video storage unit 104.
Described video storage unit 104, comprises a Large Copacity electric board, has volume little, the features such as read or write speed is fast.
Described video output unit 105, coding exports single channel or synthetic video code stream, does not limit output video form.
Described communication control unit 106, for sending instruction to plurality of cells, controls the operation of corresponding video code stream to complete.By the video acquisition modular converter in bus configuration video acquisition unit 101, make it the video code flow exporting corresponding resolution; Send instruction by bus to video recording unit 103, make it to export the video of specifying, control 3 road Video Composition modes etc.; Send instruction by bus to video output unit 105, make it to be encoded into the video format of specifying and export; Send instruction by bus to video storage unit 104, make it write or the read operation of carrying out videograph file.Communication control unit 106 comprises communication interface simultaneously, receives task system order.
Present invention achieves the synthesis of a kind of Airborne Video System and tape deck, utilize the characteristic that its resolution dynamic changes, device can the complete operation of the airborne task system of complete documentation, does not miss wherein any one working link, substantially increases the execution efficiency of airborne task system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention.It should be pointed out that for the person of ordinary skill of the art, every do in the principle of the invention any amendment, replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. Airborne Video System synthesis and a tape deck, is characterized in that: comprise signal video frequency collecting unit, video processing unit, video recording unit, video storage unit, video output unit and communication control unit that Signal transmissions is connected:
Described video acquisition unit, for receiving the video of outside input, and carry out video format conversion, output digital video signal is to video processing unit;
Described video processing unit, for the digital video signal that receiver, video collecting unit exports, does unified resolution process and exports to video recording unit by vision signal;
Described video recording unit, for the digital video after receiver, video processing unit processes, carries out multi-channel video synthesis, single channel video compression, synthetic video compression, forms H.264 code stream, be written to video storage unit;
Described video storage unit, be a capacity and speed satisfy the demands write memory device;
Described video output unit, for exporting the video flowing after single channel or multichannel synthesis;
Described communication control unit, for receiving external control order, sending instruction to plurality of cells, controls the operation of corresponding video code stream to complete.
2. Airborne Video System synthesizes and tape deck according to claim 1, it is characterized in that: described video acquisition unit correspondence gathers the video of one or more non-limiting form.
3. Airborne Video System synthesizes and tape deck according to claim 1, it is characterized in that: the input video resolution dynamic change of described video acquisition unit, and highest resolution 1080P.
4. Airborne Video System synthesizes and tape deck according to claim 1, and it is characterized in that: described video processing unit comprises one piece of programmable logic device, described unified resolution is the ultimate resolution of video input.
5. Airborne Video System synthesizes and tape deck according to claim 1, it is characterized in that: the output of described video output unit is the video flowing of numeral or simulation.
6. Airborne Video System synthesizes and tape deck according to claim 1, it is characterized in that: described video recording unit, video output unit and communication control unit are integrated among a video compressing module.
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CN201510959824.6A CN105472286A (en) | 2015-12-21 | 2015-12-21 | Airborne video synthesizing and recording device |
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CN201510959824.6A CN105472286A (en) | 2015-12-21 | 2015-12-21 | Airborne video synthesizing and recording device |
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Cited By (1)
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CN109672859A (en) * | 2018-12-13 | 2019-04-23 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of analog video monitoring system for civil aircraft |
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Application publication date: 20160406 |