BTrack: Using barometer for energy efficient location tracking on mountain roads

Ye, H, Yang, W, Yao, Y, Gu, T and Huang, Z 2018, 'BTrack: Using barometer for energy efficient location tracking on mountain roads', IEEE Access, vol. 6, pp. 66998-67009.


Document type: Journal Article
Collection: Journal Articles

Title BTrack: Using barometer for energy efficient location tracking on mountain roads
Author(s) Ye, H
Yang, W
Yao, Y
Gu, T
Huang, Z
Year 2018
Journal name IEEE Access
Volume number 6
Start page 66998
End page 67009
Total pages 12
Publisher Institute of Electrical and Electronics Engineers Inc.
Abstract This paper presents the design and implementation of BTrack, a new approach for location tracking on mountain roads. It is as accurate as the GPS on common smartphones, but costs much less energy. To design such a location system, we carried out a nation-wide online survey to confirm the desirability for low power location tracking system, and the result is positive. Then, we proposed BTrack, and it makes two key technical contributions. The first is to propose a dynamic transition matrix hidden Markov model to combine the barometer and accelerometer reading hints for estimating the location of the user. The second is to design some novel techniques for parameter estimation, and proposed an adaptive algorithm to reduce the computational complexity. The field studies show that the accuracy of BTrack is no worse than GPS in 56% cases, meanwhile, the energy consumption is only about 30%. Compared with the existing works, BTrack is more suitable for location tracking on mountain roads.
Subject Navigation and Position Fixing
Keyword(s) barometer
Location tracking
smartphone sensors
DOI - identifier 10.1109/ACCESS.2018.2879311
Copyright notice © 2018 IEEE
ISSN 2169-3536
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