| 基于移动锚节点的加权质心定位算法研究 |
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| 引用本文： | 刘洋,高美凤. 基于移动锚节点的加权质心定位算法研究[J]. 传感器与微系统, 2018, 0(2): 150-153. DOI: 10.13873/J.1000—9787(2018)02—0150—04 |
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| 作者姓名： | 刘洋 高美凤 |
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| 作者单位： | 江南大学物联网工程学院轻工过程先进控制教育部重点实验室,江苏无锡,214122 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省自然科学基金资助项目 |
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| 摘 要： | 针对加权质心定位(WSL)算法所需锚节点数目较多,定位精度低,定位成本高等问题,采用单个移动锚节点沿着既定的轨迹在监测区域移动,并在规定位置广播数据包;未知节点根据接收的信号强度(RSSI)比值以及邻居节点间的最小跳数确定权值,进而估算未知节点自身的坐标位置.仿真结果表明:算法有效地提高了定位精度和稳定性,降低了定位成本.
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| 关 键 词： | 无线传感器网络 加权质心定位算法 移动锚节点 wireless sensor networks (WSNs) weighted centroid localization(WSL)algorithm mobile anchor node |
Study of weighted centroid localization algorithm based on mobile anchor nodes |
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| LIU Yang,GAO Mei-feng. Study of weighted centroid localization algorithm based on mobile anchor nodes[J]. Transducer and Microsystem Technology, 2018, 0(2): 150-153. DOI: 10.13873/J.1000—9787(2018)02—0150—04 |
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| Authors: | LIU Yang GAO Mei-feng |
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| Abstract: | In view of the problems of many anchor nodes are needed,low positioning precision and high positioning cost of the weighted centroid localization(WSL)algorithm,a WCL algorithm needs more anchor nodes. An improved WCL algorithm,WCL triangle received signal strength indication (RSSI)hop (WCL-TRH)based on single mobile anchor node aided is proposed. A mobile anchor node moves along the fixed route in monitor area, and broadcasts data packet in specified position;according RSSI ratios received by unknown node and minimum hops,weights are determined,the coordinate position of an unknown node is estimated. The simulation results show that the improved algorithm effectively improves the precision of positioning and stability,at the same time,reduce the costs of positioning. |
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