地铁专用无线通信降级备用系统的应用

摘要

Metro radio dispatching communication system (MRDCS) is an important command and control equipment, and certainly needs a backup. The fallback system of radio accesses the TETRA base station through a remote control SAR, it is simple and needs only small investment, but effective in improving the reliability of MRDCS and the operational safety redundancy. Starting from the basic concept of TETRA system, a comparison of the standby mode is focused on the principles of backup system, system structure and function realization.%地铁专用无线通信系统是重要的调度指挥设备,必需设置备用系统.地铁专用无线通信降级备用系统通过远程控制基站接入电台的方式接入集群基站,简单实用,投资小,提高了专用无线通信系统的可靠性,有利于提高运营安全冗余.从TETRA系统基本概念入手,对备用模式进行了比较、分析,重点分析、讨论了地铁专用无线通信降级备用系统的原理、构成和功能实现.