电力系统自动化2012，Vol.36Issue(10)：86-89,4.
变电站在线监测系统中无线传感器网络的RETX算法
RETX Route Metric Algorithm for Wireless Sensor Network of Online Monitoring System for Smart Substations
摘要
Abstract
In smart substation, it is an important topic that how to send device status data to the monitoring center securely, reliably and cost-effectively through wireless sensitive network （WSN）. At first, it is found through experiment that several shortcomings of WSN communication link such as high loss rate, obvious asymmetry, etc. Then a RETX route metric algorithm based on link quality and containing received signal strength indication （RSSI） value and expected transmission count （ETX） is proposed. The RSSI value is calculated through an algorithm of forward link and reverse link, and furthermore the minimum energy needed for success sending a packet is also calculated. By using this algorithm to online monitor system of smart substation, the network duration of service may be extended, which offers valuable reference to the application of WSN in intelligent online monitoring system for smart substations.关键词
智能变电站/在线监测/无线传感器网络/链路质量评估/RETX算法Key words
smart substation/online monitoring/wireless sensor network/link quality evaluation/RETX algorithm分类
信息技术与安全科学引用本文复制引用
张文波,高强,程大伟,李洪凯..变电站在线监测系统中无线传感器网络的RETX算法[J].电力系统自动化,2012,36(10):86-89,4.基金项目
国家985工程重点建设项目 （）
国家自然科学基金资助项目（69873007）. （）
