西安地铁列车辅助定位系统研究

Research on Auxiliary Train Positioning System of Xi’an Metro

在城市轨道交通信号系统故障的情况下,需采用电话闭塞方式进行行车组织。为了提高列车定位效率,降低设备故障对全线运营安全的影响,研发了列车辅助定位系统,并在西安地铁部署应用。从列车辅助定位系统的需求分析出发,重点阐述了系统架构、接口设计、功能实现和系统特点等。该系统实现了信号系统故障情况下的辅助定位功能,缩短了故障处理时间,增强了CBTC信号系统在特有故障场景下的容错能力,可作为地铁安全运营的有效补充手段。

In the case of signal system failure of urban rail transit, it is necessary to use telephone block to organize traffic. In order to improve the efficiency of train positioning and reduce the impact of equipment failures on the safety of the whole line, an auxiliary train positioning system was developed and applied in Xi’an metro. Starting from the demand analysis of the train auxiliary positioning system, the system architecture, interface design, function realization and system characteristics are mainly described.The system has realized the auxiliary positioning function in the case of signal system fault, shortened the time of fault handling, enhanced the fault tolerance ability of CBTC signal system in special fault scenarios, and can be used as an effective supplementary means for the safe operation of metro.