基于无线网络的有轨电车杂散电流监测系统

针对传统轨道交通杂散电流有线监测系统建设复杂、成本高、影响美观等缺点,提出利用无线通信技术构建有轨电车杂散电流监测系统。分析对比无线网络监测系统的优越性和必要性,对系统整体结构设计、通信方式的选择、主要设备硬件设计和软件设计等方面进行阐述。监测系统由监测终端、区间监测子站和监测管理中心3个层次组成,监测终端与区间监测子站之间采用ZigBee无线网络通信,实现监测数据的上报;区间监测子站与监测管理中心之间通过GPRS网络通信,实现区间数据的发送和控制指令的接收。经现场实验验证,通过无线网络传输的监测数据与有线监测系统得到的数据基本一致,系统通信稳定,可满足监测杂散电流的要求。

Tram Stray Current Monitoring System Based on Wireless Network

In order to change traditional wired rail traffic stray current monitoring system complicated construction, high cost, unsightly appearance and other shortcomings, we proposed to use of wireless communication technology to build tram stray current monitoring system. We analyzed the advantage and necessity of wireless network monitoring system, expounded the system whole structure design, the choice of means of communication, main equipment of hardware design and software design. The monitoring system consists of monitoring terminal, interval monitoring station and monitoring center. Monitoring terminal uses ZigBee wireless network to report monitoring data to monitoring substation; monitoring substation and monitoring center communicate by GPRS network, sending data and receiving control command. Through the field experiment, the wireless network obtained the same data with wired monitoring system. The system communication is stable, meeting the requirements of stray current monitoring.