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Paper Abstract and Keywords
Presentation 2018-03-13 10:25
Estimation of sleep position change and sleep stages using sheet-type vibration sensors
Megumi Nakamura, Shion Yamagata, Takamasa Yoshida, Nobuyuki Terada (Toyo Univ.) MBE2017-90
Abstract (in Japanese) (See Japanese page) 
(in English) To easily estimate sleep position change and sleep stages on the bed, we measured physical vibrations using sheet-type vibration sensors under the mattress. The sensors composed of two bidirectional microphones equipped with elastic tubes placed under the foot and chest sides were installed at asymmetrical positions each other. We identified the subject’s position on the bed with high precision by calculating correlation coefficients between waveforms of the pressure change being transmitted to the both sides of the microphone. Sleep stages were presumed by an index of sympathetic and parasympathetic nervous activity based on the instantaneous heart rate derived from the ballistocardiographic signal.
Keyword (in Japanese) (See Japanese page) 
(in English) Sleep Position Change / Heartbeat Interval / Sleep Stage / Watching System for Elderly People / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 507, MBE2017-90, pp. 57-60, March 2018.
Paper # MBE2017-90 
Date of Issue 2018-03-06 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee MBE NC  
Conference Date 2018-03-13 - 2018-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME, general 
Paper Information
Registration To MBE 
Conference Code 2018-03-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of sleep position change and sleep stages using sheet-type vibration sensors 
Sub Title (in English)  
Keyword(1) Sleep Position Change  
Keyword(2) Heartbeat Interval  
Keyword(3) Sleep Stage  
Keyword(4) Watching System for Elderly People  
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1st Author's Name Megumi Nakamura  
1st Author's Affiliation Toyo University (Toyo Univ.)
2nd Author's Name Shion Yamagata  
2nd Author's Affiliation Toyo University (Toyo Univ.)
3rd Author's Name Takamasa Yoshida  
3rd Author's Affiliation Toyo University (Toyo Univ.)
4th Author's Name Nobuyuki Terada  
4th Author's Affiliation Toyo University (Toyo Univ.)
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Speaker Author-1 
Date Time 2018-03-13 10:25:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2017-90 
Volume (vol) vol.117 
Number (no) no.507 
Page pp.57-60 
#Pages
Date of Issue 2018-03-06 (MBE) 


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