电力通信会议电视网络协议体系的选择  

The selection about network protocol architecture of the video conferencing syst em in electric power private communication network

作　　者：叶景青[1] 

机构地区：[1]杭州电力局,浙江杭州310009

出　　处：《电力系统通信》2003年第5期39-43,共5页Telecommunications for Electric Power System

摘　　要：介绍了会议电视系统以及国际电信联盟关于会议电视的各种建议。对基于ITU TH 320和H 323等ITU T关于会议电视的建议框架及其所包含的系列协议进行了描述。分析比较了H 242 H 243 H 230协议和H 245协议。充分考虑了IP网络和在IP网上开展视听多媒体业务的众多优点,选择了ITU TH 323建议作为电力通信专网会议电视网络协议体系,并对网络设计时应着重考虑的技术问题予以探讨。The thesis describes the ITUT recommendation framework based on H32 0,H321,H322,H323,H324 and other series protocols.H242/H243/H23 0 protocols are compared and analyzed with H245,H242/H243/H230 protocol s are compared and analyzed with T120,T120 protocol is compared and analyze d with H245 from the point of view on suitable network,suitable service type ,important control ling function,multi-point capability,expandability,availa bility of channel,implementation complexity,adaptability for different media, etc.Considering various benefits of IP net and the video-audio multimedia servic e on IP net,H323 recommendation is adopted as the network protocol architectu re of the video conferencing system in electric power private communication netw ork,and the key techniques of network design are discussed too.

关 键 词：电力通信专网 会议电视 网络协议体系 多媒体通信系统 

分 类 号：TN915.853[电子电信—通信与信息系统] TN949.23[电子电信—信息与通信工程]