| Presentation | 2010-12-17 Functionality extensions of crowd density estimation by wireless sensors Takamasa SUZUKI, Masayuki NAKATSUKA, Jiro KATTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Today, for market's investigations and automatic monitoring systems, crowd density estimation becomes an important research topic. There are existing methods like the camera based crowd density estimation or the RFID based counting systems. However, these methods need deployment cost and enough spaces to set the sensors. To solve these problems, there is a estimation system using RSSI (Received Signal Strength Indicator) and LQI (Link Quality Indicator) in wireless sensor networks. RSSI is a signal strength obtained by monitoring the packets that are communicated between nodes. We assume that, as the number of people increase, RSSI value is violated and decreases. However, this method applies only to networks that one pair nodes communicate with each other. It's not practicable for many networks. In this paper, we therefore extend a existing method to multihop networks where two or more nodes access to a base station and cover wider area. Finally, we evaluate validity of our proposal and develop an application with wireless sensors. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Crowd Density / Wireless Sensor Networks / RSSI / LQI |
| Paper # | NS2010-133 |
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| Committee | NS |
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| Conference Date | 2010/12/9(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Network Systems(NS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Functionality extensions of crowd density estimation by wireless sensors |
| Sub Title (in English) | |
| Keyword(1) | Crowd Density |
| Keyword(2) | Wireless Sensor Networks |
| Keyword(3) | RSSI |
| Keyword(4) | LQI |
| 1st Author's Name | Takamasa SUZUKI |
| 1st Author's Affiliation | Department of Computer Science, Waseda University() |
| 2nd Author's Name | Masayuki NAKATSUKA |
| 2nd Author's Affiliation | Department of Computer Science, Waseda University |
| 3rd Author's Name | Jiro KATTO |
| 3rd Author's Affiliation | Department of Computer Science, Waseda University |
| Date | 2010-12-17 |
| Paper # | NS2010-133 |
| Volume (vol) | vol.110 |
| Number (no) | 339 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |