In this paper, wireless sensor network (WSN) is used for power transmission line insulator leakage current monitoring and warning system. The technical characteristics and the components of the system are described. The hardware and software of each component are designed and implemented. Combining with the characteristics of the structure and the layout of transmission lines and the monitoring parameters, the long chain tree-like topology of wireless sensor network is designed. Aiming at the effect of funnel in long chain topology of sensor networks, the multimode hierarchy network is constructed. In addition, the key issues in implementing the transmission line insulator leakage current monitoring system are analyzed and solved, for example, the joint transmission model using the Sink node of vicinity network to adjust the channel is adopted to solve the bottleneck problem. The system has important significance to monitor the transmission line in-timely, exactly and low-costly.This work is supported by National Natural Science Foundation of China (No. 60974125).%将无线传感器网络用于输电线路绝缘子泄漏电流监测与预警系统,分析了其技术特点及系统构成,设计和实现了监测系统中各个组成部分的软、硬件.结合输电线路的结构、布局及监测参数等特点,设计了长链树状无线传感器网络的拓扑结构.针对传感器网络数据传输中的漏斗效应问题,实现了多模层次无线传感器网络构建.解决了输电线路绝缘子泄漏电流在线监测数据传输中的一些关键问题,如利用邻近网络Sink节点进行信道调整的联合传输模型解决网络瓶颈问题等.无线传感器网络的优良特性使及时、准确、低成本的输电线路监测成为可能.
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