声波室内定位系统中基站几何布局探究  

Discussion on geometrical layout of base station in acoustic indoor positioning system

作　　者：王帅帅 贾学东[1] 陈国军[1] 陈琦[1] WANG Shuaishuai;JIA Xuedong;CHEN Guojun;CHEN Qi(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,郑州450001

出　　处：《导航定位学报》2020年第2期12-17,35,共7页Journal of Navigation and Positioning

基　　金：河南省重大技术专项(181200211300)。

摘　　要：为了进一步研究声波定位系统中基于信标的定位方式,提出利用几何精度衰减因子(GDOP)对不同基站几何布局进行评定的方法:对利用三角定位法的传统基站布局方式的定位精度进行分析,总结出影响定位精度的因素,得出基站的空间几何布局是影响定位精度的重要因素的结论。实验结果表明,传统的基站空间几何布局存在一定的缺陷,通过改进基站空间布局方式可以明显提高定位精度。最后提出几类有效的定位布局模式,可根据实际空间情况采用不同的布局方式,为声波室内定位技术大规模、高精度的定位提供支持。In order to further study on the beacon-based positioning methods in acoustic wave localization systems, the paper proposed a method to evaluate the geometric layout of different base stations using geometric dilution of precision(GDOP): the positioning accuracy of the traditional base station layout using triangulation method was analyzed;the influencing factors on positioning accuracy were summarized, and it was found that the spatial geometric layout of base station would be an important factor affecting the positioning accuracy. Experimental result showed that the traditional spatial geometric layout of base station would have certain defects, and the positioning accuracy could be obviously improved by modifying the spatial layout of the base station. Finally, several types of effective positioning layout modes were provided, which could be selected according to actual space conditions. Result could be referenced for large-scale and high-precise positioning of acoustic indoor positioning technology.

关 键 词：声波室内定位 空间几何分布 几何精度衰减因子 定位精度 

分 类 号：P228[天文地球—大地测量学与测量工程]