一、概述随着人类文明的进步和电子科技的快速发展,视频监控作为人类视野的延伸,被广泛应用于各行各业,成为安全防范与可视化管理的重要手段。最近倍受国人振奋的“神州六号”载人航天飞船就安装了视频监控系统,使中华亿万同胞通过直播目睹了飞船与火箭的分离的壮观场面。视频监控应用环境的复杂及应用规模的扩大,使监控的传输成为业界关注的重要话题,并促进了监控传输方式由单一化向多元化迅速发展,各种传输方式以自己独特的适应性或便易性活 I. Overview With the progress of human civilization and the rapid development of electronic technology, video surveillance has been widely used in all walks of life as an extension of human vision and has become an important means of security and visualization management. Recently, the “Shenzhou VI” manned spacecraft, which was greatly encouraged by the people, installed a video surveillance system that enabled millions of Chinese compatriots to witness the spectacular separation of the spacecraft and the rocket from the live broadcast. The complexity of the video surveillance application environment and the expansion of the application scale make the monitoring transmission an important topic of concern in the industry and promote the rapid development of the monitoring transmission mode from single to diversification and various transmission modes with their own unique adaptability or convenience Yi sex live