线路在线监测的自组织自愈无线传感器网络方案

Scheme of Long-distance Transmission Line On-line Monitoring for Self-organizing and Self-healing Wireless Sensor Networks

如何将安装于杆塔上在线监测的现场数据信息采集终端装置采集到的数据信息安全可靠地传输至监控中心在线监测诊断预警系统主站中对电网安全运行十分重要,因此针对应用对象的技术层面,提出了适用于远距离输电线路故障在线监测的自组织自愈通信网络的原理和方法,设计了应用于输电线路灾害预警系统无线传感网络能够融合数据、图像、视频等多种类型传感信号的异构加速度传感器节点模块;采用异构节点集群路由协议的思想,给出基于ZigBee无线组网技术来实现层次性网络拓扑结构局域网及簇首单跳或多跳集群路由协议,并从节点查询、数据传输速率和网络安全性方面对此方案进行分析,提出了需进一步研究和探讨的相关技术。

According to technical aspects of application objects, in order to transmit the on–line monitoring data acquired by information acquisition terminal unit which is installed on the towers to the on-line monitoring diagnosis pre-alarming system in the master station of the monitor center securely and reliably,we put forward a method of self-organizing and self-healing communications networks for on-line monitoring of long-distance transmission line fault.A node model of speed-up wireless sensor equipment applied to warning system of transmission line,which can deal with kinds of sensor signals,such as data,picture,video,etc,was designed.Adopting heterogeneous node cluster routing protocols,the wireless organizing technology based on ZigBee was constructed to realize the network of hierarchy within LAN and single hop or multihop routing protocol of leading nodes.The moving management of node,the transmission rate of data and security of this scheme are also analyzed.