| Project/Area Number |
23700114
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Media informatics/Database
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 情報システム / 無線 LAN / 加速度センサ / 屋内位置推定 / 無線LAN / 確率モデル / 無線LAN環境特異点 / LOS・NLOS / 無線LAN距離関数 / ゲート検出 / デッドレコニング |
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| Research Abstract |
We have developed a gate passing detection method based on WiFi signal strength and accelerometer of the user’s smartphone. Door divides physical areas such as room and hallway. Thus, the WiFi environments of them tend to vary on a large scale. Conversely, it can be said that a gate should exist when the point that the WiFi environment varies on a large scale. We define such point “WiFi Significant Point.” We propose the detection method based on WiFi distance function and estimated moving distance according to accelerometer. We evaluated the proposal method and found out that more than half part of door passing can be detected. We also found that the existence of doors that can be estimated same door passing with a high degree of accuracy
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