摘要
针对现有无线定位技术应用到室内存在的诸多问题,结合无线传感网络技术,分析比较现有成熟的定位方法,针对室内特有的环境,提出一种实用的室内定位方法。以RSSI测距的多元回归模型为基础,利用信标节点的距离差分信息,修正目标节点的距离信息,并结合三边定位算法进行仿真,结果证明算法计算量小,无需较多的信标节点却能保证很高的定位精度,以算法为核心的定位系统能够适用于室内环境,效果满足要求。
Aim at serial problems of current wireless location technology used in indoor space localization,this paper analyses and compares the existing methods of localization,adopts the wireless sensor network technology,combines the trilateration localization algorithm,and puts forward a practical localization algorithm used in indoor.This algorithm corrects the target node distance based on the difference distance of beacon nodes and the multiple regression model of RSSI.The experiments show that the method which needs little computing and little beacon nodes and has high localization precision is more able to meet the requirement of positioning services under the indoor environment.
出处
《计算机仿真》
CSCD
北大核心
2010年第7期102-104,共3页
Computer Simulation
关键词
无线传感网络
室内
差分定位
信标节点
Wireless sensor network（WSN）
Indoor
Difference localization
Beacon node
