数字电视直播信源自动切换改造方案探析

Transformation Scheme of Automatic Switching of Digital TV Broadcast Source

针对江苏有线苏州分公司数字电视直播信源人工切换人员判断要求高响应、速度慢的现状,利用DCM自动切换功能进行自动化切换改造,并新建信源监控系统,以利于实时掌握数字电视直播信源播出状态。数字电视直播信源自动切换改造完成后,简化了切换逻辑,提高了自动化程度。此外,切换响应速度由原先的数分钟提高到1 s内,机顶盒终端侧达到无感,切实提高了安播保障级别。

In view of the current situation that the manual switching the digital TV live source of Jiangsu cable Suzhou Branch judge that the demand is high and the response speed is slow,this scheme uses the DCM automatic switching function to carry out the automatic switching transformation,and builds a new source monitoring system to facilitate the real-time control of the digital TV live source broadcasting status.After the completion of the automatic switching transformation of the digital TV live broadcast source,the switching logic is simplified and the degree of automation is improved.The switching response speed is increased from the original few minutes to one second,and the terminal side of the TV box is insensitive,which effectively improves the security level of the broadcast.