应急广播农村大扬声器系统现状分析  

Available System Analysis of Emergency Broadcasting Rural Loudspeaker

作　　者：马艳[1] 丁森华[1] 张智军[1] 

机构地区：[1]国家新闻出版广播电影电视总局 广播科学研究院,北京100866

出　　处：《电视技术》2015年第10期94-97,共4页Video Engineering

摘　　要：应急广播农村大扬声器系统在有效应对抗自然灾害、积极宣传地方政务、促进农村广播事业发展等方面发挥着巨大作用。目前福建、浙江、四川、青海等多地区已完成或开始了农村大扬声器系统的改造建设,致力于形成一套可管可控、标准规范、安全可靠的农村大扬声器系统。基于我国广电网络现状,对目前应急广播农村大扬声器系统实现的主流方式进行了分析,包括:基于有线/无线RDS调频副载波、基于IP网络、有线/地面数字电视TS流传输,为日后应急广播农村大扬声器系统建设提供参考。On aspects of preventing natural disaster, publicizing local government, and promoting rural broadcasting industry., emergency broadcasting rural loud-speaker has made huge advanced impacts. Nowadays, lots of districts, such as Fujian, Zhejiang, Sichuan, and Qinghai, have ＇already on their way of system constructing or even completed, which is controllable, standard and secure. Based on available broadcasting network, main methods to realize emergency broadcasting rural loudspeaker system include RDS based on cable/FM subcarrier, IP network tech. and TS tech based on CATV/DTMB. The above three methods to provide references for future constructions are all analyzed.

关 键 词：应急广播 村村响 RDS调频副载波 IP网络 TS流传输 

分 类 号：TN939.1[电子电信—信号与信息处理]