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FTrack: Infrastructure-free floor localization via mobile phone sensing

conference contribution
posted on 2024-10-31, 16:59 authored by Haibo Ye, Tao Gu, Xiaorui Zhu, Jingwei Xu, Xianping Tao, Jian Lu, Ning Jin
Mobile phone localization plays a key role in the fast-growing Location Based Applications domain. Most of the existing localization schemes rely on infrastructure support such as GSM, WiFi or GPS. In this paper, we present FTrack, a novel floor localization system to identify the floor level in a multi-floor building on which a mobile user is located. FTrack uses the mobile phone's accelerometer only without any infrastructure support. It does not require any prior knowledge of the building such as floor height. By capturing user encounters and analyzing user trails, FTrack finds the mapping from the traveling time (when taking the elevator) or the step counts (when walking on the stairs) between any two floors to the number of floor levels. The mapping can then be used for mobile users to pinpoint their current floor levels. We conduct both simulation and field studies to demonstrate the effectiveness of FTrack. Our field trial in a 10-floor building shows that FTrack achieves an accuracy of over 90% after two hours in our experiment.

History

Start page

2

End page

10

Total pages

9

Outlet

Proceedings of IEEE International Conference on Pervasive Computing and Communications (PerCom)

Editors

Silvia Giordano, Marc Langheinrich

Name of conference

PerCom 2012

Publisher

IEEE

Place published

New York, USA

Start date

2012-03-19

End date

2012-03-23

Language

English

Copyright

© 2012 IEEE

Former Identifier

2006040018

Esploro creation date

2020-06-22

Fedora creation date

2015-01-15

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