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SENSYS
2010
ACM

SensLoc: sensing everyday places and paths using less energy

9 years 8 months ago
SensLoc: sensing everyday places and paths using less energy
Continuously understanding a user's location context in colloquial terms and the paths that connect the locations unlocks many opportunities for emerging applications. While extensive research effort has been made on efficiently tracking a user's raw coordinates, few attempts have been made to efficiently provide everyday contextual information about these locations as places and paths. We introduce SensLoc, a practical location service to provide such contextual inforabstracting location as place visits and path travels from sensor signals. SensLoc comprises of a robust place detection algorithm, a sensitive movement detector, and an ondemand path tracker. Based on a user's mobility, SensLoc proactively controls active cycle of a GPS receiver, a WiFi scanner, and an accelerometer. Pilot studies show that SensLoc can correctly detect 94% of the place visits, track 95% of the total travel distance, and still only consume 13% of energy than algorithms that periodically co...
Donnie H. Kim, Younghun Kim, Deborah Estrin, Mani
Added 15 Feb 2011
Updated 15 Feb 2011
Type Journal
Year 2010
Where SENSYS
Authors Donnie H. Kim, Younghun Kim, Deborah Estrin, Mani B. Srivastava
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