An Indoor Positioning Method using Smartphone and Smartwatch Independent of Carrying Modes

Tomoya Wakaizumi, Nozomu Togawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A pedestrian dead reckoning method, or PDR method in short, is one of the positioning methods in indoor environments, which estimates user's positions by using sensors such as acceleration and angular velocity sensors. When we consider using a smartphone as a PDR sensor device, it has various carrying modes such as holding it directly and carrying it inside a pocket. How to deal with these various carrying modes is the great concern in PDR using a smartphone. In this paper, we propose a PDR method based on a combination of a smartphone and a smartwatch. By synchronizing smartphone and smartwatch sensors effectively, the proposed method can successfully reduce drift errors and thus estimate accurate user's positions, compared to just using a smartphone. Furthermore, even when the user carries his/her smartphone in various carrying modes, the proposed method still realizes accurate PDR. The experimental results demonstrate that the positioning errors are reduced by approximately 87.5% on average compared to the existing method.

Original languageEnglish
Title of host publication2021 IEEE International Conference on Consumer Electronics, ICCE 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728197661
DOIs
Publication statusPublished - 2021 Jan 10
Event2021 IEEE International Conference on Consumer Electronics, ICCE 2021 - Las Vegas, United States
Duration: 2021 Jan 102021 Jan 12

Publication series

NameDigest of Technical Papers - IEEE International Conference on Consumer Electronics
Volume2021-January
ISSN (Print)0747-668X

Conference

Conference2021 IEEE International Conference on Consumer Electronics, ICCE 2021
CountryUnited States
CityLas Vegas
Period21/1/1021/1/12

Keywords

  • PDR
  • carrying mode
  • indoor positioning
  • smartphone
  • smartwatch

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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