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1应用背景随着城市建设、道路交通和网络工程的不断深化发展,要在日趋复杂的城市布局和地形多样的高速公路、隧道等场所中重新埋设光纤,由于工程量巨大,周期长,资金投入大,已是不大现实的。因此,如何用尽可能少的光纤传输大量分散分布的视频,便成了监控系统的传输方案不可避免地需要解决
1 Application Background With the continuous deepening development of urban construction, road traffic and network engineering, it is necessary to re-embed optical fibers in increasingly complicated urban layouts and various topographic highways, tunnels and other places. Due to huge quantities of projects, long periods and capital investment Big, it is not real. Therefore, how to transmit a large amount of scattered video with a minimum number of optical fibers has become an inevitable solution to the monitoring system transmission scheme