基于WSN的铁路防灾安全监控系统研究

Study on WSN-based Railway Safety Monitoring System

本文在分析铁路防灾系统架构和特点的基础上,使用无线传感器网络(WSN)技术对现有系统进行无线化改进.充分发挥WSN的优点,采用Zigbee和RFID技术,设计基于WSN的铁路防灾系统架构、组网方案和数据传输方案.在现有防灾监控系统功能的基础上,新增车地传输功能,将列车运行前方的环境情况发送给列车,为列车运行提供参考.此外,详细研究Zigbee节点和RFID节点的部署方案,并对节点部署情况进行仿真及实例分析.本系统能够降低防灾系统的安装难度和部署成本,并为列车实时提供前方运行环境情况,为高速列车的安全运行提供保障.

Based on the structure and characteristics of the existing railway safety monitoring system, this paper makes full use of the advantages of wireless sensor network（WSN） to improve the system. Zigbee and RFID technology are used to design the system architecture, network and data transmission scheme of WSN- based railway safety monitoring system. On the basis of the existing railway safety monitoring system, the function of the train-wayside transmission is added into the system so the environment condition in front of the train can be transmitted to the train. In addition, the deployment scheme of Zigbee node and RFID node is studied and a simulation case study of node deployment is used. This system can effectively reduce the difficulty of installation and deployment cost of railway safety monitoring system, and provide the running environment in front of the train in real-time, thus guarantee the safety of high-speed train operation.