Title
Indoor-Outdoor Detection Using a Smart Phone Sensor.
Abstract
In the era of mobile internet, Location Based Services (LBS) have developed dramatically. Seamless Indoor and Outdoor Navigation and Localization (SNAL) has attracted a lot of attention. No single positioning technology was capable of meeting the various positioning requirements in different environments. Selecting different positioning techniques for different environments is an alternative method. Detecting the users' current environment is crucial for this technique. In this paper, we proposed to detect the indoor/outdoor environment automatically without high energy consumption. The basic idea was simple: we applied a machine learning algorithm to classify the neighboring Global System for Mobile (GSM) communication cellular base station's signal strength in different environments, and identified the users' current context by signal pattern recognition. We tested the algorithm in four different environments. The results showed that the proposed algorithm was capable of identifying open outdoors, semi-outdoors, light indoors and deep indoors environments with 100% accuracy using the signal strength of four nearby GSM stations. The required hardware and signal are widely available in our daily lives, implying its high compatibility and availability.
Year
DOI
Venue
2016
10.3390/s16101563
SENSORS
Keywords
Field
DocType
seamless positioning,indoor/outdoor detection,machine learning,GSM
Base station,Mobile internet,GSM,Location-based service,Positioning technology,Electronic engineering,Real-time computing,Signal strength,Engineering,Smart phone,High energy,Embedded system
Journal
Volume
Issue
ISSN
16
10.0
1424-8220
Citations 
PageRank 
References 
4
0.42
4
Authors
5
Name
Order
Citations
PageRank
Wang Weiping133563.84
Qiang Chang2181.46
Qun Li3203.22
Zesen Shi4130.93
Wei Chen58612.45