Design and Implementation of Pedestrian Dead Reckoning System on a Mobile Phone

Daisuke KAMISAKA  Shigeki MURAMATSU  Takeshi IWAMOTO  Hiroyuki YOKOYAMA  

IEICE TRANSACTIONS on Information and Systems   Vol.E94-D   No.6   pp.1137-1146
Publication Date: 2011/06/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Emerging Technologies of Ubiquitous Computing Systems)
pedestrian dead reckoning,  pedestrian navigation system,  indoor positioning,  motion sensor,  mobile phone,  gait analysis,  

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Pedestrian dead reckoning (PDR) based on human gait locomotion is a promising solution for indoor location services, which independently determine the relative position of the user using multiple sensors. Most existing PDR methods assume that all sensors are mounted in a fixed position on the user's body while walking. However, it is inconvenient for a user to mount his/her mobile phone or additional sensor modules in a specific position on his/her body such as the torso. In this paper, we propose a new PDR method and a prototype system suitable for indoor navigation systems on a mobile phone. Our method determines the user's relative position even if the sensors' orientation relative to the user is not given and changes from moment to moment. Therefore, the user does not have to mount the mobile phone containing sensors on the body and can carry it in a natural way while walking, e.g., while swinging the arms. Detailed algorithms, implementation and experimental evaluation results are presented.