Airborne general video acquisition system

A technology of video acquisition and acquisition unit, which is applied in the aviation field, can solve the problems that it is difficult to meet the test requirements of large aircraft, and achieve the effect of facilitating flight data processing and flight monitoring

Active Publication Date: 2015-09-30
西安中飞航空测试技术发展有限公司
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Problems solved by technology

[0002] The importance of video data for flight tests is self-evident. Various video data acquisition recorders are used in aircraft flight test tasks, but

Method used

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  • Airborne general video acquisition system

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Embodiment 1

[0044] Such as Figure 11 As shown, there are two HSB bus extension modules 5 of the main acquisition unit 1, and two sub-acquisition units 2, the LSB extension module 7 of the first sub-acquisition unit 2 and one HSB bus extension module 5, the second The LSB expansion module 7 of the two sub-acquisition units 2 and another HSB bus expansion module 5 .

[0045] Such as Figure 12 As shown, the signal flow direction of LSB backplane bus resource transmission is:

[0046] The one LSB bus functional module 4 occupies one LSB bus resource in the system, and is an LSB bus board. The physical ports 1 to 7 of the LSB bus board 1 closest to the main control module 6 respectively obtain bus resources 1 to 7 from the backplane connector, and the physical ports 1 to 6 transparently transmit bus resources 2 to 7. Bus resource 7, physical port 7 does not output any bus resources, and the board actually uses bus resource 1 of physical port 1; physical ports 1 to 7 input by LSB bus board...

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Abstract

The invention discloses an airborne general video acquisition system. The system comprises a main acquisition unit and a plurality of auxiliary acquisition units, wherein the main acquisition unit comprises a power module I, a plurality of LSB bus function modules I, a plurality of HSB (home bus system) bus extension modules and a master control module which are sequentially connected; each auxiliary acquisition unit comprises a power module II, a plurality of LSB bus function modules II and an LSB extension module which are sequentially connected, the plurality of LSB bus function modules II include a DVI/VGA (digital video interface/video graphics array) acquisition and compression module, an LVDS (low voltage differential signaling) acquisition and compression module, a PAL (phase alteration line) acquisition and compression module, an SDI (serial digital interface) acquisition and compression module, a PCM (pulse code modulation) encoding module, a timing system module and a PCM acquisition module or extension record module respectively, and the LSB extension modules of the plurality of auxiliary acquisition units are connected with any one of the HSB bus extension modules of the main acquisition unit respectively. The airborne general video acquisition system acquires video signals of multi-channel display screens, lower displays and additional cameras on a plane simultaneously, thereby realizing multi-channel telemetering downloading of the video signals, facilitating flight monitoring, providing network output and local record and facilitating post-processing of flight data.

Description

technical field [0001] The invention belongs to the technical field of aviation, and in particular relates to an airborne general video acquisition system. Background technique [0002] The importance of video data for flight tests is self-evident. Various video data acquisition recorders are used in aircraft flight test tasks, but the current installed video collectors can only collect a few video signals, which is difficult to meet the needs of large aircraft. testing needs. [0003] With the improvement of test data analysis requirements, the demand for video data is gradually increasing. At present, when testing new aircrafts, it is not only necessary to collect signals such as on-screen display and lower display on the aircraft, but also to add Lots of cameras installed. In this context, it is very necessary to design an airborne general-purpose video collector that supports multi-channel video signal acquisition. Contents of the invention [0004] In view of this,...

Claims

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Application Information

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IPC IPC(8): H04N7/18
Inventor 张涛骞拓韩光韬张杰侯海啸李小薇温静
Owner 西安中飞航空测试技术发展有限公司
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