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ON RSSI-BASED ZIGBEE LOCALISATION TECHNOLOGY
Author(s): 
Pages: 134-137
Year: Issue:  4
Journal: Computer Applications and Software

Keyword:  Received signal strength indicator (RSSI)Centroid algorithmIndoor localisation technology;
Abstract: ZigBee定位技术常常采用基于RSSI测距的原理.在研究传统的定位算法基础上,提出一种三边-加权质心定位算法,改进的算法以减小定位面积为目的,采用三边法确定定位三角形,在三角形中再根据以测试距离按影响大小设置的权值变量计算出未知节点的估计值.在基于ZigBee的硬件平台之上,验证了该算法较传统算法的误差更小,在测量距离较大时,优势更加明显.同时采用终端计算机进行算法处理,使各节点硬件结构简单,适合通信开销小、硬件要求低的节点使用.
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