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三网融合的脚步越来越近,各地广电都在如火如荼的进行着双向网改造。VOD(Video On Demand)业务是变传统电视的被动收看模式为用户主动按兴趣点播习惯,体现三网融合优势的一个重要应用。如何在传统的有线电视网络快速、简单、稳定的部署该项业务,同时充分利用现有设备,避免大规模的机房改造,保护已有投资,成为各地广电必须考虑的问题。2011年湘潭广电被选为湖南首批三网融合的试点城市,为此湘潭广电加快了网络改造的进度。本文通过对湘潭广电网络采用的VOD点播信号光插入技术进行介绍,意在为广大同仁介绍一种简单可行的VOD插入技术,以便快速的部署双向业务。
Triple play closer and closer, all over the radio are in full swing two-way network transformation. VOD (Video On Demand) business is to change the traditional TV passive viewing mode for the user’s interest in demand-based on the habit of reflecting the advantages of triple play an important application. How to quickly, simply and steadily deploy this service in the traditional cable TV network while making full use of the existing equipment, avoiding large-scale computer room renovation and protecting existing investments have become the issues that must be taken into consideration by local radio and TV stations. Xiangtan radio and television in 2011 was selected as the first batch of triple play pilot cities in Hunan, Xiangtan radio and television to speed up the progress of network transformation. This paper introduced VOD on-demand signal light insertion technology adopted by Xiangtan radio and television network. It is intended to introduce a simple and feasible VOD insertion technology for the general colleague to quickly deploy two-way services.