一种无线传感器网络节点精确定位的方法

摘要

在无线传感器网络应用中,传感器节点经常被布设在大面积的农田环境里,由于网络规模大、节点数目多、节点能量有限等特点,如何对节点进行准确定位是最为重要的事情.为了延长节点的存活时间,就需要在节点通信过程中尽可能提高定位的精度.为此提出了一种利用距离和角度相结合的定位方法来解决这类问题.分析结果表明,采用该方案节省了节点能量,延长了网络的生存时间.%In the wireless sensor network,sensor nodes are often located in large area farmland environment,due to the large network size,numerous nodes and limited node energy,locating accurate position of the nodes was very important.In order to extend the survival time of node,the locating should be as accuracy as possible in the communication process.A locating method combing distance and angle position was proposed,and it was proved that this method could save node energy while extend the network lifetime.