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Paper Abstract and Keywords
Presentation 2009-07-28 15:00
Power Saving of Wireless Sensor Node in Ubiquitous Environment Managed by DB
Yuki Yamada, Takashi Tomii (Yokohama Nat. Univ.) DE2009-8
Abstract (in Japanese) (See Japanese page) 
(in English) In ubiquitous environments, wireless-sensors are effective because their weight is light and user whowears them can go wherever one wants to go. Although the life time of the wireless-sensors is limited by capacity of a battery. For extending the life time of the wireless-sensors, extending the polling interval is effective. However, if the polling interval is longer, the number of fail of sensity is higher. In this paper, we propose three methods which make life time of wireless-sensors long without fail of sensity using the sensors only at need. First method uses DB which has location where user can get important data. Second method makes the polling interval short when user who wears accelsensor moves. Last method combines the concept first and second. We implemented three methods and evaluated the utility of these by experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) Ubiquitous Environment Database / Wireless-sensor / Consumption / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 153, DE2009-8, pp. 43-48, July 2009.
Paper # DE2009-8 
Date of Issue 2009-07-21 (DE) 
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)
Download PDF DE2009-8

Conference Information
Committee DE  
Conference Date 2009-07-28 - 2009-07-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Kobe fashion mart 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ubiquitous, sensor environments, and database system, etc. 
Paper Information
Registration To DE 
Conference Code 2009-07-DE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Power Saving of Wireless Sensor Node in Ubiquitous Environment Managed by DB 
Sub Title (in English)  
Keyword(1) Ubiquitous Environment Database  
Keyword(2) Wireless-sensor  
Keyword(3) Consumption  
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1st Author's Name Yuki Yamada  
1st Author's Affiliation Yokohama National University (Yokohama Nat. Univ.)
2nd Author's Name Takashi Tomii  
2nd Author's Affiliation Yokohama National University (Yokohama Nat. Univ.)
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Speaker Author-1 
Date Time 2009-07-28 15:00:00 
Presentation Time 30 minutes 
Registration for DE 
Paper # DE2009-8 
Volume (vol) vol.109 
Number (no) no.153 
Page pp.43-48 
#Pages 6 
Date of Issue 2009-07-21 (DE) 

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