摘要
闭路电视(CCTV)是城市轨道交通专用通信系统的重要组成部分。目前,地铁通信网广泛采用了开放式传输网(OTN)。介绍了OTN系统的组成、功能、帧结构,分析OTN构成地铁CCTV系统的工作原理,为系统运行和维护提供理论基础。
CCTV is one important part of the special communication for urban mass transit,while OTN is widely adopted in subway transmission network.In this paper,the characteristics,composition,function,structure and frame work of OTN are introduced,the working principle,operation and maintenance of subway CCTV system with OTN as a part is analyzed to provide a theoretical basis for this system.
出处
《城市轨道交通研究》
北大核心
2010年第10期86-88,共3页
Urban Mass Transit
关键词
地铁
开放式传输网
闭路电视
通信
metro
open transport network
closed circuit television
communication
