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Development of an Indoor Location Based Service Test Bed and Geographic Information System with a Wireless Sensor Network
Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 70101, Taiwan
* Author to whom correspondence should be addressed.
Received: 28 January 2010; in revised form: 2 March 2010 / Accepted: 11 March 2010 / Published: 30 March 2010
Abstract: In order to provide the seamless navigation and positioning services for indoor environments, an indoor location based service (LBS) test bed is developed to integrate the indoor positioning system and the indoor three-dimensional (3D) geographic information system (GIS). A wireless sensor network (WSN) is used in the developed indoor positioning system. Considering the power consumption, in this paper the ZigBee radio is used as the wireless protocol, and the received signal strength (RSS) fingerprinting positioning method is applied as the primary indoor positioning algorithm. The matching processes of the user location include the nearest neighbor (NN) algorithm, the K-weighted nearest neighbors (KWNN) algorithm, and the probabilistic approach. To enhance the positioning accuracy for the dynamic user, the particle filter is used to improve the positioning performance. As part of this research, a 3D indoor GIS is developed to be used with the indoor positioning system. This involved using the computer-aided design (CAD) software and the virtual reality markup language (VRML) to implement a prototype indoor LBS test bed. Thus, a rapid and practical procedure for constructing a 3D indoor GIS is proposed, and this GIS is easy to update and maintenance for users. The building of the Department of Aeronautics and Astronautics at National Cheng Kung University in Taiwan is used as an example to assess the performance of various algorithms for the indoor positioning system.
Keywords: wireless sensor network; indoor positioning system; geographic information system; location based service
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Cite This Article
MDPI and ACS Style
Jan, S.-S.; Hsu, L.-T.; Tsai, W.-M. Development of an Indoor Location Based Service Test Bed and Geographic Information System with a Wireless Sensor Network. Sensors 2010, 10, 2957-2974.
Jan S-S, Hsu L-T, Tsai W-M. Development of an Indoor Location Based Service Test Bed and Geographic Information System with a Wireless Sensor Network. Sensors. 2010; 10(4):2957-2974.
Jan, Shau-Shiun; Hsu, Li-Ta; Tsai, Wen-Ming. 2010. "Development of an Indoor Location Based Service Test Bed and Geographic Information System with a Wireless Sensor Network." Sensors 10, no. 4: 2957-2974.