关于广播电视有线网络双向化技术的探究

Research on the bidirectional technology of Radio and television cable network

目前,我国在广播电视有线网络方面投入了足够的精力,已基本实现了普及,而为了与三网融合工作积极配合,大部分电视有线网络也踏上了双向化改造建设道路。有线电视网络经双向化改造后,原有单向传输运营模式将会被双向宽带接入网取代,此类网络在承载电信、电视业务的基础上,同时能为广大用户提供双向交互业务,有利于视频互动及点播等技术的深入推广。本文首先阐述了双向技术在广播电视有线网络中应用的必要性,随后指出了具体的实施原则,最后探索了常用的双向网络技术及实践应用,以供参考。

At present,China has invested enough energy in the radio and television cable network,which has basically achieved popularity.In order to actively cooperate with the triple play work,most TV cable networks have embarked on the road of two-way transformation and construction.After the bidirectional transformation of CATV network,the original unidirectional transmission operation mode will be replaced by bidirectional broadband access network.This kind of network can provide bidirectional interactive services for users on the basis of carrying telecommunication and television services,which is conducive to the in-depth promotion of video interactive and on-demand technologies.This paper first expounds the necessity of the application of bidirectional technology in radio and television cable network,then points out the specific implementation principles,and finally explores the commonly used bidirectional network technology and its practical application for reference.