简易WSN定位算法及其实现  

Simple Positioning Algorithm and Its Implementation Based on WSN

作　　者：顾海军[1] 王永[1] 崔启帆[1] 赵晓晖[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2013年第5期443-448,共6页Journal of Jilin University（Information Science Edition）

基　　金：吉林省科技发展计划基金资助项目(20110356);吉林省自然科学基金资助项目(201215011)

摘　　要：为实现高效、低功耗的区域定位,综合主流的WSN(Wireless Sensor Network)定位技术,提出RSSI(Received Signal Strength Indication)修正的质心定位实用算法,并搭建了无线传感网络,制定了高效的通信定位协议。根据通信协议,上位机发送指令试探性寻址盲节点,盲节点应答并通过其相邻的参考节点的感知进行反馈,最终上位机基于RSSI的运算进行盲节点的坐标定位。实验结果表明,RSSI修正的质心定位算法可高效地对节点进行定位,降低盲节点功耗,具备现实应用的价值。To achieve high efficiency,low-power regional positioning,we combine mainstream WSN（Wireless Sensor Network） location algorithm,bring up a weighted centroid localization method using RSSI（Received Signal Strength Indication）,and build a wireless sensor network,formulate an efficient communication protocol.Based on communication protocol,first the PC sends instruction to poll the target node,and then target node broadcasts acknowledgement,finally PC computes coordinate of the target with the aggregation data from anchornodes.The results fully prove that the method can efficiently locate the target node,reduce target node power consumption,which can place an important role in location application.

关 键 词：无线传感网络 ZIGBEE技术 定位技术 信号接收强度 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]