基于无线通信的信号系统AP接入点改造方案

Solution to Upgrading Access Points for Signal System Based on Wireless Communication

无线通信丢失导致列车发生紧急制动故障,一直是制约广州地铁4号线设备性能提升的瓶颈。为了避免设备的可靠性下降,通过对广州地铁4号线无线系统既有设备参数以及网络结构进行综合分析,制定了一种基于西门子无线通信的信号系统AP接入点改造方案。经测试验证,该方案能够解决4号线既有线AP硬件停产的隐患,以及工作性能不良的问题。

Emergency braking of trains caused by loss of wireless communication has remained as a bottleneck to hinder performance improvement of the equipment in Guangzhou Metro Line 4.To avoid the decline in the reliability of the equipment,a comprehensive analysis has been made to specific parameters of the wireless communication equipment as well as its network structure.And a solution to upgrading access points for the signal system based on Siemens' wireless communication is formulated.It has been validated in test that the solution can eliminate the hazards rendering the breakdown and poor performance of the existing AP's hardware used in Line 4.