Title
Correcting Air-Pressure Data Collected by MEMS Sensors in Smartphones
Abstract
We present a novel correction method for air-pressure data collected by microelectromechanical pressure sensors embedded in Android-based smartphones, in order to render them usable as meteorological data. The first step of the proposed correction method involves removing the mechanically derived outliers existing beyond the physical limits and those existing outside 3 sigma, as well as a reduction to the mean sea level pressure using the altitude data from digital elevation models. The second correction step involves classifying data by location and linear-regression analysis utilizing the temperature and humidity sensed by the smartphone to reduce correction errors by performing the analysis according to personalized settings. Air-pressure data obtained from smartphones is subject to several influential factors, depending on the users' external environment. However, once corrected for spatial location, temperature, and humidity and for individual users after a comprehensive quality control, the corrected air-pressure data was highly reliable as an auxiliary resource for automatic weather stations.
Year
DOI
Venue
2015
10.1155/2015/245498
JOURNAL OF SENSORS
Field
DocType
Volume
USable,Android (operating system),Remote sensing,Outlier,Atmospheric pressure,Digital elevation model,Mems sensors,Pressure sensor,Engineering
Journal
2015
ISSN
Citations 
PageRank 
1687-725X
2
0.38
References 
Authors
3
6
Name
Order
Citations
PageRank
Na Young Kim121.74
Yong-Hyuk Kim235540.27
Yourim Yoon318517.18
Hyo-Hyuc Im420.72
Reno K. Y. Choi520.72
Yong Hee Lee6467.09