浅谈城市轨道交通车地通信质量的提升

How to Improve Quality of Train-ground Communication for Urban Rail Transit

对于采用CBTC系统的城市轨道交通,车地通信质量会间接影响客运质量.以广州地铁21号线为例,从信号场强覆盖、单个无线AP点功率提升、列车场强数据采集等方面进行分析,总结车地无线通信质量的分析方法,提出改善无线通信系统质量的措施.

For the urban rail transit adopting Communication Based Train Control system,the quality of train-ground wireless communication may indirectly affect the quality of passenger transport.In the case of No.21 line of Guangzhou metro,the quality analysis method of train ground radio communication is summarized in term of field strength of radio coverage,power escalation of single wireless AP point,field strength data acquisition by train and other aspects.Besides,the measures to improve the quality of wireless communication system are proposed.