一种智能手机室内位置共享的方法  

An indoor location sharing method for smartphones

作　　者：张加丁 陈崇成[1] 叶晓燕[1] 方荟 ZHANG Jiading;CHEN Chongcheng;YE Xiaoyan;FANG Hui(Key Laboratory of Spatial Data Mining&Information Sharing of MOE,Fuzhou University/National and Local Joint Engineering Research Center of Geospatial Information Technology,Fuzhou University,Fuzhou 350116,China;Digital Fujian IoT Laboratory of Intelligent Production,Minjiang University,Fuzhou 350108,China)

机构地区：[1]福州大学空间数据挖掘与信息共享教育部重点实验室/地理空间信息技术国家地方联合工程研究中心,福州350116 [2]闽江学院数字福建智能化生产物联网实验室,福州350108

出　　处：《导航定位学报》2019年第3期17-23,共7页Journal of Navigation and Positioning

基　　金：福建省第二批科技创新领军人才项目(00387005)

摘　　要：针对GPS室内定位精度较低,难以实现准确的室内位置共享的问题,提出一种智能手机室内位置共享的方法,主要包括室内定位和路径规划2个部分:室内定位方法采用行走采集的方式快速构建WiFi指纹数据库,分析3种智能手机获取航向的方法,并采用球面线性插值算法来融合陀螺仪和旋转矢量传感器以获得更为稳定的航向,再将WiFi定位与航迹推算结果进行粒子滤波融合;路径规划方法利用环信即时通讯云作为通讯服务器实现位置共享,并采用Dijkstra算法计算最短路径,为用户提供地图导航。实验结果表明,该方法能够在有效提高室内定位精度的同时,结合室内位置共享和路径规划实现快速准确的室内寻人寻址。Aiming at the problem that the indoor positioning accuracy of GPS is too low to achieve accurate indoor location sharing,the paper proposed an indoor location sharing method for smartphones,which mainly includes two parts,i.e.indoor positioning and path planning:for the indoor positioning method,WiFi fingerprint database was quickly built by using the method of walking acquisition,the methods of obtaining the headings by three kinds of smartphones were analyzed,and the more stable heading was acquired by using spherical linear interpolation algorithm integrated the gyroscope with the rotation vector sensor.then the WiFi positioning and the PDR were combined by particle filtering;for the path planning method,the location sharing was achieved by using HuanXin instant messaging as the communication server,and Dijkstra algorithm was used to calculate the shortest path to provide map navigation for users.Experimental results showed that the method could effectively improved the accuracy of indoor positioning,and achieve fast and accurate indoor search by combining indoor location sharing and path planning.

关 键 词：位置共享 室内定位 粒子滤波 无线保真(WiFi)指纹数据库 行人航迹推算(PDR) 路径规划 

分 类 号：P228[天文地球—大地测量学与测量工程]