Context Awareness for GPS-Enabled Phones

Jouni Kantola, Mikko Perttunen, Teemu Leppanen, Jussi Collin, Jukka Riekki

Abstract:	We study the problem of recognizing the motion mode of users using solely signals from phone embedded GPS receiver and 3-D accelerometers. Motion mode recognition is motivated both by its usage in low-cost inertial aiding systems and as a preprocessing step for other motion mode dependent algorithms. Drawbacks of traditional inertial navigation can be mitigated by context information, enabling automatic zero-velocity updates and pedestrian dead-reckoning mechanization. As an example of other applications, we present 3-D acceleration based road condition monitoring system. The algorithms developed for this study are tested with real data collected with mobile phones, resulting in a realistic identification of limitations and possibilities of context-aware positioning applications.
Published in:	Proceedings of the 2010 International Technical Meeting of The Institute of Navigation January 25 - 27, 2010 Catamaran Resort Hotel San Diego, CA
Pages:	117 - 124
Cite this article:	Kantola, Jouni, Perttunen, Mikko, Leppanen, Teemu, Collin, Jussi, Riekki, Jukka, "Context Awareness for GPS-Enabled Phones," Proceedings of the 2010 International Technical Meeting of The Institute of Navigation, San Diego, CA, January 2010, pp. 117-124.
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