【摘要】 专用无线通信系统由多个基站形成一个有线、无线相结合的网络，由无线交换控制中心设备、网络维护管理设备、调度台、基站、光纤直放站、列车车载台、车站固定台、移动人员便携台、天馈系统及传输通道组成。随着地铁线网化运行，调度指挥中心范围不断扩大，调度系统设备不断增加，为了确保调度系统稳定运行，在既有线调度系统出现不能及时恢复故障时，考虑对现有专用无线调度系统进行容灾备份，避免集群交换机故障影响下挂线路业务。更多还原

【Abstract】 The dedicated wireless communication system consists of a wired and wireless network formed by multiple base stations, which is composed of wireless switching control center equipment, network maintenance and management equipment, dispatching station, base station, optical fiber repeater, train on-board station, fixed station, portable station, antenna feeder system and transmission channel. With the networked operation of Zhengzhou metro line, the scope of the dispatching command center is expanding, and the equipment of the dispatching system is also increasing. In order to ensure the stable operation of the dispatching system, in the event of the failure of the existing line dispatching system that cannot be recovered in time, the disaster recovery backup of the existing dedicated wireless dispatching system will be considered to avoid the failure of the cluster switch affecting the line business.更多还原