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Paper Abstract and Keywords
Presentation 2015-07-29 14:25
A Study of Positioning System with Wireless Synchronization Technique
Yuji Tohzaka, Takafumi Sakamoto, Yusuke Doi (Toshiba Corp.) ASN2015-25
Abstract (in Japanese) (See Japanese page) 
(in English) Indoor localization systems with ICT (Information and Communication Technology) are expected to expand markets and being developped actively. However, precise location systems have an initial cost problem due to cabling for synchronizing infrastructure devices. In this paper, we propose an indoor localization system, which realizes precise localization and lower initial cost by applying our wireless synchronization technique. In the proposed system, localization nodes equip a sonic receiver and a wireless LAN module. Then, localization nodes can do time synchronization and communication with the wireless LAN. Each localization node detects sonic wave from a localization target and sends the time of detection to a localization server. The localization server carries out localization calcuration with the times of detection. We prototyped the proposed system and measured the localization precision. Then the system achieved 200 mm localization error on average. We show the proposed system architecture, prototyping and measurement results.
Keyword (in Japanese) (See Japanese page) 
(in English) Positioning / Localization / Wireless synchronization / Wireless LAN / IEEE 802.11 / Sonic wave / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 162, ASN2015-25, pp. 27-31, July 2015.
Paper # ASN2015-25 
Date of Issue 2015-07-22 (ASN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee RCC ASN RCS NS SR  
Conference Date 2015-07-29 - 2015-07-31 
Place (in Japanese) (See Japanese page) 
Place (in English) JA Naganoken Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Distributed Network, M2M: Machine-to-Machine, D2D (Device-to-Device),etc. 
Paper Information
Registration To ASN 
Conference Code 2015-07-RCC-ASN-RCS-NS-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Positioning System with Wireless Synchronization Technique 
Sub Title (in English)  
Keyword(1) Positioning  
Keyword(2) Localization  
Keyword(3) Wireless synchronization  
Keyword(4) Wireless LAN  
Keyword(5) IEEE 802.11  
Keyword(6) Sonic wave  
1st Author's Name Yuji Tohzaka  
1st Author's Affiliation Toshiba Corporation (Toshiba Corp.)
2nd Author's Name Takafumi Sakamoto  
2nd Author's Affiliation Toshiba Corporation (Toshiba Corp.)
3rd Author's Name Yusuke Doi  
3rd Author's Affiliation Toshiba Corporation (Toshiba Corp.)
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Date Time 2015-07-29 14:25:00 
Presentation Time 25 
Registration for ASN 
Paper # IEICE-ASN2015-25 
Volume (vol) IEICE-115 
Number (no) no.162 
Page pp.27-31 
#Pages IEICE-5 
Date of Issue IEICE-ASN-2015-07-22 

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