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为了实现机载网络环境下基于高速航电总线的多路DVI视频信号的测试抽引难题,提出了机载多路DVI视频信号分配器的设计方案。针对高速航电总线多路DVI视频信号速率高、实时性强、路数多的特点,完成了高速航电总线视频信号转换模块、高速信号分路模块等电路设计.实现了千兆网络视频信号的采集处理及分路转发功能。实验结果表明,该机载高速总线视频分配器在不影响原机视频链路的情况下,解决了高速航电总线多路DVI视频信号的分路抽引需求。
In order to realize the testing and drawing of multi-channel DVI video signal based on high-speed avionics bus in airborne network environment, the design scheme of airborne multiplex DVI video signal distributor is proposed. Aiming at the characteristics of high speed avionics bus multi-channel DVI video signal, such as high speed, strong real-time and large number of lanes, the circuit design of high-speed avionics bus video signal conversion module and high-speed signal shunt module has been completed and the gigabit network video signal The collection processing and branch forwarding function. The experimental results show that this high-speed bus video distributor solves the demand for shunting of multi-channel DVI video signal of high-speed avionics bus without affecting the original video link.