论文部分内容阅读
传统的模拟矩阵+光端机的方案在大型联网项目中视频多级传输多次A/D转换会出现视频损耗问题,中间设备众多且没有网管功能也存在可靠性问题;基于IP网络的全数字化网络监控方案也远非完美,须以牺牲视频图像的高质量、视频监控的实时性和安全性为代价来完成视频监控的数字化与网络化。于是一种基于光纤网络技术的全数字视频监控应运而生。
The traditional simulation matrix + optical transceiver program in large-scale networking projects in the video multi-level transmission A / D conversion will be a number of video loss problems, many intermediate devices and there is no network management reliability also exists; IP network-based digital network monitoring The scheme is also far from perfect, and the digitalization and networking of video surveillance must be completed at the expense of the high quality of video images, the real-time and security of video surveillance. So a kind of all-digital video surveillance based on optical fiber network technology came into being.