SICE Journal of Control, Measurement, and System Integration
Online ISSN : 1884-9970
Print ISSN : 1882-4889
Assistive Approach for Pedestrian Dead Reckoning Based on RSSI Using Access Point Selection Method
Shigeyuki TATENOYiTong CHODungHan LIHao TIANPengYu HSIAO
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2018 Volume 11 Issue 6 Pages 463-469


Since smartphones have been widely adopted by the general public and wireless fundamental infrastructure has been changed greatly, indoor positioning and location tracking methods have been applied to various kinds of service and applications. Pedestrian dead-reckoning (PDR) and a received signal strength indicator (RSSI)-based positioning method are widely used since they can be easily utilized by smartphone with build-in sensors such as accelerometer and gyroscope. However, estimation error would occur to PDR which caused by environmental interference and accumulation error in angular calculation. Moreover, RSSI measurements fluctuate according to external effects. In this paper, a novel indoor localization method based on access point (AP) selection is proposed. By assisting PDR with RSSI from stable APs, the heading angle can be updated periodically to reduce the error. Furthermore, in order to enhance the accuracy, the angle is calculated using quaternion. The experimental results show that the suitable APs selection can improve the accuracy effectively.

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© 2018 The Society of Instrument and Control Engineers
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