改进的三维加权质心定位算法

发布时间：2018-04-26 07:48

本文选题：电气火花源 + RSSI测距　；参考：《工矿自动化》2017年02期

【摘要】：针对现有煤矿引爆源(电气火花源)定位方法采用二维加权质心定位算法存在误差较大的问题,提出了一种改进的三维加权质心定位算法。根据电气火花能在周围空间产生电磁波的特点,建立了自由空间下的接收信号强度指示(RSSI)传播模型,利用高斯模型对RSSI信号强度进行修正,得到更准确的测距模型;在三维空间内,合理选择检测点,并引入新的加权因子指数k,求出目标节点的坐标,实现对电气火花源的定位。模拟测试结果表明,该算法具有较高的定位精度,最大定位误差为0.319m,平均误差为0.265m。
[Abstract]:An improved 3D weighted centroid localization algorithm is proposed to solve the problem that the existing mine detonation source (electrical spark source) localization method has a large error by using two-dimensional weighted centroid localization algorithm. According to the characteristic that the electric spark can produce electromagnetic wave in the surrounding space, the propagation model of the received signal intensity indicator (RSSI) in the free space is established. The RSSI signal intensity is modified by using the Gao Si model, and a more accurate ranging model is obtained. In three dimensional space, the detection points are reasonably selected, and a new weighting factor exponent k is introduced to find out the coordinates of the target node, and to realize the location of the electrical spark source. The simulation results show that the algorithm has high accuracy, the maximum positioning error is 0.319m and the average error is 0.265m.
【作者单位】：中国矿业大学信息与电气工程学院;
【基金】：“十三五”国家重点研发计划项目(2016YFC0801808)
【分类号】：TD712;TP212.9

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