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Indoor/Outdoor Route Estimation Method Based on Global Map Matching Using BLE Beacons and GPS

Authors:
Shinsuke Kajioka
Takanori Saito
Daisuke Yamamoto

Keywords: map matching, BLE beacon, GPS, geographical information systems

Abstract:
In recent years, devices, such as smartphones and Bluetooth Low Energy (BLE) beacons, equipped with BLE functionality have become increasingly widespread, resulting in a proliferation of services that use BLE beacons to estimate location. However, most existing research on location estimation using BLE beacons is limited to indoor locations, and few methods are available to accommodate both indoor and outdoor locations. This study proposes a method that combines data from BLE beacons and Global Positioning System (GPS) to estimate continuous path of human movement across both indoor and outdoor areas. This enables not only highly accurate estimation of indoor and outdoor routes but also flexible route estimation by expanding “indoor” and “outdoor” routes to include “semi- outdoor” routes: for example, supplementary BLE beacons are placed near high-rise buildings or in semi-outdoor areas where GPS signals are weak to improve the accuracy of estimation. For achieving such estimation, the proposed method joints maps on adjacent floors or indoor/outdoor. To validate the effectiveness of the proposed method, a prototype system for achieving this functionality is developed and experiment is conducted. The results of the experiment indicates that the proposed method produces better results of route estimation.

Pages: 61 to 66

Copyright: Copyright (c) IARIA, 2023

Publication date: April 24, 2023

Published in: conference

ISSN: 2308-393X

ISBN: 978-1-68558-079-7

Location: Venice, Italy

Dates: from April 24, 2023 to April 28, 2023