Anchor-Free Localization Method for Mobile Targets in Coal Mine Wireless Sensor Networks

被引：28

作者：

Pei, Zhongmin ^{[1
]}

Deng, Zhidong ^{[1
]}

Xu, Shuo ^{[2
]}

Xu, Xiao ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Intelligent Technol & Syst, Tsinghua Natl Lab Informat Sci & Technol, Dept Comp Sci & Technol, Beijing 100084, Peoples R China

[2] Inst Sci & Tech Informat China, Beijing 100038, Peoples R China

来源：

SENSORS | 2009年 / 9卷 / 04期

基金：

国家高技术研究发展计划(863计划);

关键词：

Wireless sensor networks; Multi-dimensional scaling; Received signal strength; Rank sequence;

D O I：

10.3390/s90402836

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Severe natural conditions and complex terrain make it difficult to apply precise localization in underground mines. In this paper, an anchor-free localization method for mobile targets is proposed based on non-metric multi-dimensional scaling (Multidimensional Scaling: MDS) and rank sequence. Firstly, a coal mine wireless sensor network is constructed in underground mines based on the ZigBee technology. Then a non-metric MDS algorithm is imported to estimate the reference nodes' location. Finally, an improved sequence-based localization algorithm is presented to complete precise localization for mobile targets. The proposed method is tested through simulations with 100 nodes, outdoor experiments with 15 ZigBee physical nodes, and the experiments in the mine gas explosion laboratory with 12 ZigBee nodes. Experimental results show that our method has better localization accuracy and is more robust in underground mines.

引用

页码：2836 / 2850

页数：15

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