A Smartphone Indoor Positioning System Using Hybrid Localization Technology

被引:20
作者
Gang, Hui-Seon [1 ]
Pyun, Jae-Young [1 ]
机构
[1] Chosun Univ, Dept Informat & Commun Engn, Gwangju 61452, South Korea
关键词
indoor positioning system; location-based service; bluetooth low energy; beacon; fingerprinting; inertial measurement unit; geomagnetic field; pedestrian dead-reckoning; vision positioning; PEDESTRIAN TRACKING; SENSORS; FILTER; WIFI;
D O I
10.3390/en12193702
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
As smartphone built-in sensors, wireless technologies, and processor computing power become more advanced and global positioning system (GPS)-based positioning technologies are improving, location-based services (LBS) have become a part of our daily lives. At the same time, demand has grown for LBS applications in indoor environments, such as indoor path finding and navigation, marketing, entertainment, and location-based information retrieval. In this paper, we demonstrate the design and implementation of a smartphone-based indoor LBS system for location services consisting of smartphone applications and a server. The proposed indoor LBS system uses hybrid indoor positioning methods based on Bluetooth beacons, Geomagnetic field, Inertial Measurement Unit (IMU) sensors, and smartphone cameras and can be used for three types of indoor LBS applications. The performance of each positioning method demonstrates that our system retains the desired accuracy under experimental conditions. As these results illustrate that our system can maintain positioning accuracy to within 2 m 80% of the time, we believe our system can be a real solution for various indoor positioning service needs.
引用
收藏
页数:20
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