dc.contributor.advisor |
Lee, Kyunghan |
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dc.contributor.author |
Lee, Sungyong |
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dc.date.accessioned |
2024-01-25T13:31:43Z |
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dc.date.available |
2024-01-25T13:31:43Z |
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dc.date.issued |
2016-08 |
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dc.description.abstract |
A new transportation mode recognition system for smartphones, VehicleSense that is widely applicable to mobile context-aware services is proposed. VehicleSense aims at achieving three performance objectives: high accuracy, low latency, and low power consumption at once by exploiting sound characteristics captured while being on candidate transportations in a unique way. To attain the high energy efficiency, VehicleSense adopts hierarchical accelerometer-based triggers that minimize the activation of the built-in microphone of smartphones. Further, to attain the high accuracy and the low latency, VehicleSense manipulates the sampled sound with non-linear filters that are shown to lead to substantial performance improvement. Our 186-hour log of sound and accelerometer data collected by seven different Android smartphone models confirms that VehicleSense shows 98.2% of recognition accuracy with only 0.6 seconds of latency, while consuming only about 26.1 mW on average for all day monitoring. |
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dc.description.degree |
Master |
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dc.description |
Department of Electrical and Computer Engineering |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/72084 |
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dc.identifier.uri |
http://unist.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002301294 |
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dc.language |
eng |
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dc.publisher |
Ulsan National Institute of Science and Technology (UNIST) |
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dc.rights.embargoReleaseDate |
9999-12-31 |
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dc.rights.embargoReleaseTerms |
9999-12-31 |
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dc.title |
VehicleSense: Transportation Mode Detection Using Sound Data with an Acceleromter-based Trigger System |
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dc.type |
Thesis |
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