室内Cricket无线传感器网络定位方法的改进  

Improved indoor location scheme for Cricket wireless sensor network

作　　者：刘玉宏[1] 詹英[1] 

机构地区：[1]南阳理工学院软件学院基础教研室,河南南阳473004

出　　处：《计算机工程与应用》2010年第21期227-228,234,共3页Computer Engineering and Applications

摘　　要：在无中心构架的Cricket无线传感器网络室内定位系统中,呈线性关系的参与定位的3个参考节点坐标会使三边测量法失效,从而导致系统进行大量的冗余计算甚至崩溃。采用参考节点坐标的最小距离决策和二次迭代法,使得系统在三边测量法失效的前提下仍能正常运行。通过实验证明这种改进方案提高了系统的稳定性和效率。The three beacons node-coordinates of linear relationship make trilateration fail in locating with the decentralized architecture for Cricket wireless sensor networks,which causes location system to be in redundant calculations even collapsed state.Twice-iteration and mini-distance-decision are proposed to maintain system to run healthily under the trilateration-failure condition.The improved scheme proves to make the system obtain high stability and efficiency.

关 键 词：无线传感器网络 三边测量法 室内定位 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]