基于无线通信的城轨车地双向通信网络研究分析

Analysis on the Twe- way Communication Network of Urban Rail Vehicles Based on Wireless Communication

运用无线通信实现车地数据传输的ATC才是真正意义上的移动闭塞。在城轨无线通信移动闭塞CBTC信号系统中，车栽MR与轨旁AP之间的双向无线传输链路传输的数据直接关系到行车安全。结合西安地铁2号线，主要对车地双向通信网络采用的IEEE802．II标准、无线设备及安装、无线网络冗余及越区切换、电磁干扰、安全措施进行分析。

ATC that is using wireless communication for data transmission is the true sense of mobile block. In CBTC signal system of the urban rail transit wireless communication, data from data communications link between mobile MR and trackside AP directly related to traffic safety. Accordng to Xi＇an Metro Line 2, this paper mainly an- alyses IEEE 802.11 standard of the train communication network, wireless equipment and its installation, wireless network redundancy and handover, electromagnetic interference and safety measures.