铁路货车车地信息传输技术研究

阐述无线通讯在轨旁数据传输的几种实现方式以及技术特点。针对铁路货车主要设备车载无线无源传感与监测组件、轨旁数据基站和地面监测与诊断主机的组成方式,对采用U W B信息传输方式开展研究铁路货车车地信息传输技术。以D W M1000集成芯片为核心设计的轨旁数据基站的UWB发射模块和UWB基站模块,其采用LEACH协议算法,并具有的层次型路由协议,周期性的随机选举簇头节点的方式,能够在减少节点能耗的同时延长整个网络的生存时间,且能在列车快速经过轨旁基站的时间窗口内完成数据传输。

Research on Vehicle-Ground Information Transmission Technology forFreight Trains

This paper expounds several implementation methods and technical characteristics of wireless trackside data transmission.Research is carried out on the application of UWB information transmission methods in freight train-ground information transmission,with focus on the composition of the main equipment of freight trains,wireless passive sensing and monitoring components,trackside data base stations and ground-based monitoring and diagnosis hosts.UWB transmitter modules and UWB base station modules are provided for the trackside data base stations designed with DWM1000 integrated chips as the core.Such modules,which adopt LEACH protocol algorithm,work with a hierarchical routing protocol.The method of periodically selecting cluster head nodes at random can reduce node energy consumption while prolonging the lifetime of the entire network.Data transmission can be completed within the time needed for a train to move pass a trackside base station at high speed.