广州地铁线网公安传输系统改造方案

公安传输系统是公安通信系统的基础支撑,在城市轨道交通中扮演着重要角色。由于广州地铁开通时间较长,公安传输系统设备已出现技术陈旧、带宽资源紧张、设备老化等问题,因此,需对既有线路公安传输系统现状及改造需求进行调研和分析,从制式选择、系统容量、组网方案等方面阐了述线网公安传输系统改造方案。

Reconstruction Scheme of Public Security Transmission System in Guangzhou Metro Line Network

The public security transmission system is one basic support for public security communication system and plays an important role in an urban rail transit.Guangzhou Metro has been put into operation for more than two decades,its public security transmission system is technically outmoded with strained band resources and aging equipment.So,it is required that investigation and research be conducted to understand the situation and reconstruction demand of the existing public security transmission system.The reconstruction scheme of the system of Guangzhou Metro line network is described in detail in terms of mode selection,system capacity and network construction.