| Presentation | 2015-01-26 Implementation and Power Consumption Analysis of Sensor-fused Energy-efficient Geofencing for Smartphones Tomohiro NAKAGAWA, Ken OHTA, Hiroshi INAMURA, Makoto SUZUKI, Hiroyuki MORIKAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to realize energy-efficient geofencing, which enables automatic detection of user's entrance to POIs, it is required to reduce battery consumption while maintaining detection accuracy and delay. In this paper, with the aim of clarifying system performance under real environments, which is hard to model in rigorous fashion in computer simulation, we evaluate the proposed geofencing system implemented on Android-based smartphone through field tests. For the purpose of detailed analysis of the system, we compare hardware-component level battery consumption breakdown among different settings that covers every combination of geofencing component functions, such as movement detection, variable interval positioning, and positioning method switching. The evaluation results show that movement detection and variable interval positioning cause serious entrance detection delay when they are executed with sequential erroneous positioning results of WiFi-based positioning. It is also confirmed that false negative and false positive of movement detection can cause detection delay, because they block position measurements at appropriate timings. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Energy-efficient geofencing / Power consumption analysis / Smartphone |
| Paper # | MoNA2014-67 |
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| Conference Information | |
| Committee | MoNA |
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| Conference Date | 2015/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Mobile Network and Applications(MoNA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Implementation and Power Consumption Analysis of Sensor-fused Energy-efficient Geofencing for Smartphones |
| Sub Title (in English) | |
| Keyword(1) | Energy-efficient geofencing |
| Keyword(2) | Power consumption analysis |
| Keyword(3) | Smartphone |
| 1st Author's Name | Tomohiro NAKAGAWA |
| 1st Author's Affiliation | Research laboratories, NTT DOCOMO, Inc.:RCAST, The University of Tokyo() |
| 2nd Author's Name | Ken OHTA |
| 2nd Author's Affiliation | Research laboratories, NTT DOCOMO, Inc. |
| 3rd Author's Name | Hiroshi INAMURA |
| 3rd Author's Affiliation | Research laboratories, NTT DOCOMO, Inc. |
| 4th Author's Name | Makoto SUZUKI |
| 4th Author's Affiliation | RCAST, The University of Tokyo |
| 5th Author's Name | Hiroyuki MORIKAWA |
| 5th Author's Affiliation | RCAST, The University of Tokyo |
| Date | 2015-01-26 |
| Paper # | MoNA2014-67 |
| Volume (vol) | vol.114 |
| Number (no) | 417 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |