县级DVB前端平台方案设计和实践  

Design and Practice of County-Level DVB Front-end Platform

作　　者：俞强 YU Qiang(Jiashan Media Center,Jiaxing 314100,China)

机构地区：[1]嘉善县传媒中心,浙江嘉兴314100

出　　处：《电视技术》2025年第2期183-185,206,共4页Video Engineering

摘　　要：安全播出是广播电视的生命线。作为有线电视运营和管理部门,数字电视前端系统的安全性和稳定性对确保数字视频广播(Digital Video Broadcasting,DVB)安全播出至关重要。基于市级下传的4路不同路由的源信号,并依托两处机房条件,构建了主备DVB前端系统。鉴于原系统存在的安全隐患,提出嘉善华数DVB前端平台的改造方案。经过6个月的建设和运行近,该系统展现出高度的安全性和可靠性、运行平稳,成功实现了设计目标。Safe broadcasting is the lifeline of radio and television.As a cable TV operation and management department,the security and stability of the Digital TV front-end system is crucial to ensure the safe broadcasting of Digital Video Broadcasting(DVB).The front-end system of active and standby DVB is constructed based on the four source signals of different routes transmitted down the city level and the conditions of two computer rooms.In view of the security risks existing in the original system,the transformation scheme of Jiashan Huashu DVB front-end platform is proposed.After nearly 6 months of construction and operation,the system shows a high degree of safety and reliability,smooth operation,and successfully achieved the design objectives.

关 键 词：数字视频广播(DVB) 前端平台 复用器 调制器 

分 类 号：TN949.197[电子电信—信号与信息处理]