视频服务器在硬盘播出系统中的应用分析

Broadcast Video Server Harddisk System Analysis

目前绝大多数省、市电视台已经或正在启动多频道(或单频道)的数字硬盘自动播出系统。硬盘播出系统可以克服磁带播出系统中存在的不确定故障,将在线实时可能发生的故障变为离线故障,降低了停播率,减少磁头磨损和人力劳动,可以灵活改动频繁的广告节目和新闻滚动节目的播出。就视频服务器在硬盘播出系统中的应用进行分析,为电视台播出系统的技术改造提供参考。

At present,the vast majorities of provincial and municipal TV stations have been or are launching multi-channel（or single-channel） digital HD Auto Play System.This system can overcome the uncertainties that existed in the cassette broadcast system,change the online real-time fault into the off-line failure,so the system can reduce the rate off the air,decrease the head attrition and human labor,and flexibly change the broadcast of the advertising programs and rolling news program.This article analyses the application of the video server in the harddisk broadcasting system and provides some advices for the technical transformation of the TV station broadcasting system.