Paper Abstract and Keywords |
Presentation |
2011-03-04 11:40
Application extensions of crowd density estimation by wireless sensors Takamasa Suzuki, Jiro Katto (Waseda Univ.) NS2010-233 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Today, for market's investigations and automatic monitoring systems, crowd density estimation becomes an important research topic. There are existing methods such as the camera based crowd density estimation or the RFID based counting systems. However, these methods need deployment costs 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 [1]. 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 where one pair nodes communicate with each other. It’s not practicable for many networks. And this method focused only on off-line evaluation and did not implement realtime applications. 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 which can estimate number of people in real-time with wireless sensors. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Crowd Density / Wireless Sensor Networks / RSSI / LQI / Zigbee / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 448, NS2010-233, pp. 393-398, March 2011. |
Paper # |
NS2010-233 |
Date of Issue |
2011-02-24 (NS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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NS2010-233 |
Conference Information |
Committee |
IN NS |
Conference Date |
2011-03-03 - 2011-03-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okinawa Convention Center |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General, NS+IN workshop (March 3-4) |
Paper Information |
Registration To |
NS |
Conference Code |
2011-03-IN-NS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Application extensions of crowd density estimation by wireless sensors |
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Keyword(1) |
Crowd Density |
Keyword(2) |
Wireless Sensor Networks |
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RSSI |
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LQI |
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Zigbee |
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1st Author's Name |
Takamasa Suzuki |
1st Author's Affiliation |
Waseda University (Waseda Univ.) |
2nd Author's Name |
Jiro Katto |
2nd Author's Affiliation |
Waseda University (Waseda Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-03-04 11:40:00 |
Presentation Time |
20 minutes |
Registration for |
NS |
Paper # |
NS2010-233 |
Volume (vol) |
vol.110 |
Number (no) |
no.448 |
Page |
pp.393-398 |
#Pages |
6 |
Date of Issue |
2011-02-24 (NS) |
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