市域级DVB系统节目安全传输的应用探讨  

Application Discussion of Program Security Transmission in Municipal DVB System

作　　者：邱琦 QIU Qi(Ningbo Wasu Radio and Television Network Co.,Ltd,Ningbo 315000,China)

机构地区：[1]宁波华数广电网络有限公司,浙江宁波315000

出　　处：《中国有线电视》2022年第12期9-14,共6页China Digital Cable TV

摘　　要：结合宁波华数广电网络有限公司整体DVB平台的建设以及各区县分前端平台统一IP信号的传输,分析市域级DVB数字电视平台的架构、各级安全备份以及IP信号传输方式等内容,探讨数字电视的安全建设以及总前端和分前端之间的信号冗余传输方式,解决了IP组播信号长距离传输的问题。Combined with the construction of the overall DVB platform of Ningbo Huashu Radio and Television Network Co., Ltd, and the unified IP signal transmission of the front-end platforms in various districts and counties, the structure of the city-level DVB digital TV platform, security backup at all levels, and IP signal transmission methods are analyzed, as well as digital TV is discussed. The security construction and the signal redundancy transmission mode between the main headend and sub-headend solve the problem of long-distance transmission of IP multicast signals.

关 键 词：DVB多级备份 自动化 IP传输 

分 类 号：TN949.197[电子电信—信号与信息处理]