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基于无线局域网信号的城区室内外无缝定位技术
引用本文:田辉,夏林元,莫志明,彭军还.基于无线局域网信号的城区室内外无缝定位技术[J].桂林工学院学报,2013(2):302-306.
作者姓名:田辉  夏林元  莫志明  彭军还
作者单位:[1]中山大学地理与科学规划学院,广州510275 [2]香港理工大学土地测量与地理资讯学系,香港九龙红磡 [3]中国地质大学(北京)土地科学技术学院,北京100083
基金项目:香港特别行政区研究资助委员会项目(RGC B-Q02F); 国家“863”计划项目(2007AA12Z226;SS2012AA120804); 国家自然科学基金项目(41104025;41074009)
摘    要:无缝定位技术被认为是移动位置服务的支撑技术,讨论了基于无线局域网(WLAN)的城区室内外无缝定位技术,利用室外公众电话亭WLAN和室内普通WLAN信号,基于实际环境建模的简化无线信号路径衰减模型,通过Cell-ID排序和交会算法,实现在城市室外环境2.1~25 m、室内环境下0.8~4.2 m的定位精度,此技术可应用于城市室内外无缝定位服务。

关 键 词:无线局域网  无缝定位  室内定位  路径衰减模型  交会算法

WLAN Based Ubiquitous Positioning for Urban Indoor and Outdoor Environment
TIAN Hui,XIA Lin-yuan,Esmond MOK,PENG Jun-huan.WLAN Based Ubiquitous Positioning for Urban Indoor and Outdoor Environment[J].Journal of Guilin University of Technology,2013(2):302-306.
Authors:TIAN Hui  XIA Lin-yuan  Esmond MOK  PENG Jun-huan
Affiliation:1.School of Geography Sensing and Planning,Sun Yat-sen University,Guangzhou 510275,China;2.Department of LSGI,Hong Kong Polytechnic University,Hongkong,China;3.School of Land Science and Technology,China University of Geosciences,Beijing 100083,China)
Abstract:Ubiquitous positioning is important in mobile geolocation services.In this paper,the signal strength based WLAN positioning technology is discussed.Outdoor public WLAN in telephone booth and indoor WLAN signals are used for positioning.A simplified wireless signal path-loss model for urban indoor and outdoor environments is proposed.By Cell-ID ranking and triangulation approaches,the positioning accuracy of outdoor WLAN is up to 2.1-25 m,and positioning accuracy of 0.8-4.2 m is derived for indoor environment.This technology can be applied for ubiquitous positioning services in urban indoor and outdoor environment.
Keywords:WLAN  ubiquitous positioning  indoor positioning  path loss model  triangulation approach
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