Title: Indoor pedestrian displacement estimation using Smart phone inertial sensors

Authors: Shahid Ayub; Xiaowei Zhou; Soroush Honary; Alireza Bahraminasab; Bahram Honary

Addresses: School of Computing and Communications, Lancaster University, Lancaster LA1 4YT, UK. ' HW Communications, Parkfield Greaves Rd., Lancaster, Lancashire LA1 4TZ, UK. ' HW Communications, Parkfield Greaves Rd., Lancaster, Lancashire LA1 4TZ, UK. ' HW Communications, Parkfield Greaves Rd., Lancaster, Lancashire LA1 4TZ, UK. ' School of Computing and Communications, Lancaster University, Lancaster LA1 4YT, UK

Abstract: The embedded inertial sensors in today's Smart phones have added the facility to use them for localisation and tracking applications. The benefit of using them for localisation purpose is that no extra infrastructure is to be installed in contrast to other existing positioning technologies. Inertial navigation only provides the information relative to initial point, so it is suitable for short distance positioning. However, integration of inertial navigation with other positioning technologies can be used for precise localisation. In this paper we introduce a mechanism for indoor pedestrian positioning using a combination of accelerometer and compass. Three different Smart phone placement modes (idle, hand held and listening) are investigated and a comparison of different pedestrian dead reckoning (PDR) techniques is presented.

Keywords: pedestrian dead reckoning; accelerometers; magnetometers; heading; step detection; stride length; indoor pedestrian displacement; smartphones; inertial sensors; localisation; tracking; inertial navigation; positioning technology; pedestrian positioning.

DOI: 10.1504/IJICA.2012.045702

International Journal of Innovative Computing and Applications, 2012 Vol.4 No.1, pp.35 - 42

Received: 06 Oct 2011
Accepted: 06 Nov 2011

Published online: 27 Feb 2012 *

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