A Smart Phone Based PDR Solution for Indoor Navigation

Ruizhi Chen, Ling Pei, Yuwei Chen

Abstract:	Most smart phones are embedded with low-cost navigation sensors such as GPS receiver, accelerometer, digital compass, and gyros. In addition to these low cost sensors, RF signals from WLAN (Wireless Local Area Network), Bluetooth, RFID (Radio Frequency Identification) and cellular networks are also available in smart phones. With the embedded navigation sensors, especially the GPS receiver, it is not a challenging task to locate the smart phone whenever an open sky is visible. However, it is still a challenging task to locate smart phones in GNSS signal challenging environments such as indoors. Therefore, indoor positioning problem has become attractive to the scientific community. This paper introduces a PDR (Pedestrian Dead Reckoning) positioning solution for indoors, especially for corridor environments. The solution is based on a low cost accelerometer and a digital compass embedded in a smart phone (Nokia 6710) plus the low energy Bluetooth RF chip that has a potential to become a standard component in smart phones in the very near future. It is an instant solution that requires any training phases for e.g. establishing the step-length model and the heading error model. The positioning process is initiated automatically when the mobile user passing a Bluetooth access point, for example the one installed at the front door of a building.
Published in:	Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011) September 20 - 23, 2011 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	1404 - 1408
Cite this article:	Chen, Ruizhi, Pei, Ling, Chen, Yuwei, "A Smart Phone Based PDR Solution for Indoor Navigation," Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011), Portland, OR, September 2011, pp. 1404-1408.
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