| 一种改进的煤矿井下无线传感器质心定位算法 |
| |
| 引用本文： | 张炜,李静静,孟庆黎.一种改进的煤矿井下无线传感器质心定位算法[J].河北工程大学学报,2014,31(1):74-77. |
| |
| 作者姓名： | 张炜 李静静 孟庆黎 |
| |
| 作者单位： | 河北工程大学科信学院,河北工程大学,水利部海委漳卫南运河邯郸河务局 |
| |
| 摘 要： | 频繁的煤矿井下事故要求无线传感器网络能够更精确的对井下人员进行定位。利用修正加权质心算法进行定位存在较大的误差,针对该问题,在修正加权质心算法的基础上提出了一种改进的煤矿井下无线传感器质心定位算法,该算法将修正加权质心算法得到的质心作为新的锚节点,并通过多次选择、运行形成新的锚节点和质心的方法进行定位。仿真结果表明:不同的巷道宽度下,改变修正系数a的值就可以得到最佳的定位效果,同时可以通过仿真实验得到最佳定位效果下的修正系数a的值,从而使定位精度达到最好。通过比较两种算法的平均定位误差得到改进的煤矿井下质心定位算法在三种巷道宽度下分别将定位误差平均降低了0.792 6m,0.636 2 m,0.598 9 m。
|
| 关 键 词： | 无线传感器网络 锚节点 修正加权质心定位算法 |
| 收稿时间： | 2013/11/13 0:00:00 |
An improved centroid localization algorithm for wireless sensor networks in underground coal mine |
| |
| Authors: | ZHANG Wei LI Jing-jing and MENG Qing-li |
| |
| Affiliation: | ZHANG Wei ,LI Jing- jing, MENG Qing- li ( 1. College of Kexin, Hebei University of Engineering, Hebei Handan 056038, China ;2. Handan River Bureau, Zhangweinan Canal, Haihe River Water Resources Commission, Ministry of Water Resources, Hebei Handan 056001, China) |
| |
| Abstract: | The frequently occurring of accidents in underground coal mine demands the accurate location of mine personnel. However, the localization by the improved weighted centroid localization algorithm is not accurate. From this point of view, this paper proposes an improved centroid localization algorithm in underground coal mine based on the improved weighted centroid localization algorithm. The new algorithm takes the centroid as new anchor node and products new anchor nodes and centroid many times to conduct the localization. The simulation results show that the proposed algorithm can reduce the mean error of location and improve the accuracy of localization algorithm. |
| |
| Keywords: | wireless sensor networks anchor nodes improved weighted centroid localization algorithm |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《河北工程大学学报》浏览原始摘要信息 |
|
点击此处可从《河北工程大学学报》下载全文 |
|
