基于无线传感网络的灾区伤员定位算法  

The Wounded Localization Algorithm Based on Wireless Sensor Network

作　　者：陈宇石 

机构地区：[1]南京邮电大学电子科学与工程学院,江苏南京210046

出　　处：《无线互联科技》2015年第3期18-20,共3页Wireless Internet Technology

基　　金：南京邮电大学大学生创新训练计划;项目编号:XYB2014046

摘　　要：自然灾害发生后,需要对灾区伤员快速定位抢救,这就对定位技术的精确度提出了很高的要求。无线传感器网络中节点定位技术是重要技术之一,在多种定位技术中RSSI测距的定位技术便捷、精确度高,因此广泛使用。传统的三边定位算法受外界因素干扰大,导致测量结果不准确。因此文章将RSSI测距技术和质心定位算法相结合设计了一个灾后伤员定位系统。该系统利用无线传感器网络进行定位请求,RSSI测距技术对未知节点进行测距,最后基于质心定位技术编写算法。该算法经过仿真实验精度完全符合要求。After natural disasters, we need to find victims quickly, which puts forward high requirement on the accuracy of positioning technology. Node localization technology is one of the important technology in wireless sensor network （WSN）, RSSI ranging positioning technology is convenient, high precision .Traditional trilateral localization algorithm is interfered by outside factors easily, which can not work well .So this article designs a wounded positioning system which combines the RSSI ranging technology and centroid localization algorithm .Wireless sensor network, RSSI ranging technology and centroid localization technology is used in the system. Through the simulation , the algorithm completely meets the requirements.

关 键 词：无线传感器网络 质心定位 RSSI测距 WIRELESS sensor network (WSN) 

分 类 号：TN929.5[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]