一种面向铁路轨道监测的无线传感器网络模型研究

对铁路轨道等列车运行的基础设施进行全面监测，并将获取的信息实时传送给机车操控人员和列车运行监控记录装置具有重要的科研和实用价值。以此为背景，提出了一种基于多网关移动性的铁路轨道监测无线传感器网络模型，描述了网络的结构和数据的传输流程。提出了一种在网关运动条件下基于相对位置信息的网络功率控制方法。仿真结果表明，在选择合理的底层通信协议的条件下，该网络能够保证监测数据的可靠传输，并满足节能和实时性等要求。

Research on a wireless sensor network used in railway track inspection

It is significant and meaningful for scienctific research and transportation security to monitor the track and roadbedod rail and to transmit the corresponding information to the locomotive manipulator. In this paper, we present a novel wireless sensor network with a multi-sink mobility model for track and roadbed monitoring using wireless sensor networks with sink mobility. We have recommended the network’s structure and defined the hierarchy of the data transmission. A dynamic Power-Control scheme is also proposed. Simulation results show that this model is useful and effective.