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组播传输技术能够实现一点对多点的数据通信.在视频监控系统中,常常遇到一个视频服务器同时向多个客户端传输相同的实时视频信息.为了有效地利用网络资源,可以采用组播传输技术来实现实时视频信息的传输.论述了组播传输技术的原理和相关的路由协议,设计了一个视频信息的采集系统,分析了实时视频信息组播传输网络.讨论了Simulcast技术和分层组播技术,用来改善客户端接收的视频质量.
Multicast transmission technology to achieve point to multipoint data communications.In the video surveillance system, often encounter a video server to multiple clients simultaneously transmit the same real-time video information.In order to effectively use the network resources, you can use multicast Transmission technology to realize the transmission of real-time video information.This paper discusses the principle of multicast transmission technology and the related routing protocols, designs a video information acquisition system, analyzes the real-time video multicast transmission network, discusses the Simulcast technology and hierarchical Multicast technology, used to improve the quality of video received by clients.