地铁站内外多源融合定位关键技术研究及实现  

Research and Implementation of Key Technology of Multi-source Fusion Positioning in and out of Subway Station

作　　者：刘思远 辛迎欣 余优生 Liu Siyuan;Xin Yingxin;Yu Yousheng(Beijing Metro Operation Co.,Ltd.,Beijing 100044;Beijing Metro Technology Development Co.5 Ltd.,Beijing 100072;Beijing XTD Information Technology Co.,Ltd.,Beijing 102200)

机构地区：[1]北京市地铁运营有限公司,北京100044 [2]北京地铁科技发展有限公司,北京100072 [3]北京星天地信息科技有限公司,北京102299

出　　处：《中国仪器仪表》2021年第11期82-85,共4页China Instrumentation

摘　　要：随着智能终端和移动互联网的快速发展,Wi-Fi被广泛分布在商厦、机场等室内公共场所,利用Wi-Fi实现室内定位可节省大量设备成本,但单独使用Wi-Fi实现定位有着稳定性差的问题。地磁信号相较于Wi-Fi信号,有着更强的时间稳定性,但单独使用地磁进行定位的精度较低。为了实现北京地铁站内Wi-Fi定位,本文提出了一种基于站内地图数据及Wi-Fi网络设备实现站内多源融合定位方案。With the rapid development of intelligent terminals and mobile Internet,Wi-Fi is widely distributed in indoor public places such as shopping malls and airports.Using Wi-Fi to achieve indoor positioning can save a lot of equipment costs,but using Wi-Fi alone to achieve positioning has poor stability.Compared with Wi-Fi signal,geomagnetic signal has stronger time stability,but the accuracy of positioning using geomagnetic signal alone is low.In order to realize Wi-Fi location in Beijing subway station,this paper proposes a multi-source fusion location scheme based on the map data of station interior and Wi-Fi network equipment.

关 键 词：Wi-Fi定位 位置指纹算法 地磁 

分 类 号：U231.7[交通运输工程—道路与铁道工程]