Presentation 2014-09-12
Time synchronization with sensor data correlation
Yuichiro AOKI, Yuki SATO, Taisuke SATO, Jin MITSUGI, Osamu NAKAMURA, Jun MURAI,
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Abstract(in English) This report proposes a method to determine the absolute time of a sensor event in a sensor device which does not have clock for low cost purpose. Time synchronization of the clock-less sensor device is compensated by recording an environmental data such as room temperature with the sensor event. The environmental data is also collected with accurate time by a clock-equipped sensor device. Correlation analysis in a cloud server determines clock times of the events measured in a clock-less sensor device. This report shows the feasibility of the proposed method by recording time series temperature data and evaluating similarity of them revealing that even if the absolute temperature measurement is different, high correlation can be observed with high resolution sensor. In case of temperature sensing, we can achieve less than 1 minutes clock synchronization with events measured by a clock-less sensor.
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Keyword(in English) Temperature sensors / Time synchronization / Correlation analysis
Paper # SIS2014-63
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Committee SIS
Conference Date 2014/9/4(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Time synchronization with sensor data correlation
Sub Title (in English)
Keyword(1) Temperature sensors
Keyword(2) Time synchronization
Keyword(3) Correlation analysis
1st Author's Name Yuichiro AOKI
1st Author's Affiliation Auto-ID Laboratory Japan, Keio University()
2nd Author's Name Yuki SATO
2nd Author's Affiliation Auto-ID Laboratory Japan, Keio University
3rd Author's Name Taisuke SATO
3rd Author's Affiliation Auto-ID Laboratory Japan, Keio University
4th Author's Name Jin MITSUGI
4th Author's Affiliation Auto-ID Laboratory Japan, Keio University
5th Author's Name Osamu NAKAMURA
5th Author's Affiliation Auto-ID Laboratory Japan, Keio University
6th Author's Name Jun MURAI
6th Author's Affiliation Auto-ID Laboratory Japan, Keio University
Date 2014-09-12
Paper # SIS2014-63
Volume (vol) vol.114
Number (no) 205
Page pp.pp.-
#Pages 4
Date of Issue