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Ultra-Low Power Wearable Infant Sleep Position Sensor

Numerous wearable sensors have been developed for a variety of needs in medical/healthcare/wellness/sports applications, but there are still doubts about their usefulness due to uncomfortable fit or frequent battery charging. Because the size or capacity of battery is the major factor affecting the...

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Autores principales: Yun, Inyeol, Jeung, Jinpyeo, Kim, Mijung, Kim, Young-Seok, Chung, Yoonyoung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6983211/
https://www.ncbi.nlm.nih.gov/pubmed/31861930
http://dx.doi.org/10.3390/s20010061
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author Yun, Inyeol
Jeung, Jinpyeo
Kim, Mijung
Kim, Young-Seok
Chung, Yoonyoung
author_facet Yun, Inyeol
Jeung, Jinpyeo
Kim, Mijung
Kim, Young-Seok
Chung, Yoonyoung
author_sort Yun, Inyeol
collection PubMed
description Numerous wearable sensors have been developed for a variety of needs in medical/healthcare/wellness/sports applications, but there are still doubts about their usefulness due to uncomfortable fit or frequent battery charging. Because the size or capacity of battery is the major factor affecting the convenience of wearable sensors, power consumption must be reduced. We developed a method that can significantly reduce the power consumption by introducing a signal repeater and a special switch that provides power only when needed. Antenna radiation characteristics are an important factor in wireless wearable sensors, but soft material encapsulation for comfortable fit results in poor wireless performance. We improved the antenna radiation characteristics by a local encapsulation patterning. In particular, ultra-low power operation enables the use of paper battery to achieve a very thin and flexible form factor. Also, we verified the human body safety through specific absorption rate simulations. With these methods, we demonstrated a wearable infant sleep position sensor. Infants are unable to call for help in unsafe situations, and it is not easy for caregivers to observe them all the time. Our wearable sensor detects infants’ sleep positions in real time and automatically alerts the caregivers when needed.
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spelling pubmed-69832112020-02-06 Ultra-Low Power Wearable Infant Sleep Position Sensor Yun, Inyeol Jeung, Jinpyeo Kim, Mijung Kim, Young-Seok Chung, Yoonyoung Sensors (Basel) Article Numerous wearable sensors have been developed for a variety of needs in medical/healthcare/wellness/sports applications, but there are still doubts about their usefulness due to uncomfortable fit or frequent battery charging. Because the size or capacity of battery is the major factor affecting the convenience of wearable sensors, power consumption must be reduced. We developed a method that can significantly reduce the power consumption by introducing a signal repeater and a special switch that provides power only when needed. Antenna radiation characteristics are an important factor in wireless wearable sensors, but soft material encapsulation for comfortable fit results in poor wireless performance. We improved the antenna radiation characteristics by a local encapsulation patterning. In particular, ultra-low power operation enables the use of paper battery to achieve a very thin and flexible form factor. Also, we verified the human body safety through specific absorption rate simulations. With these methods, we demonstrated a wearable infant sleep position sensor. Infants are unable to call for help in unsafe situations, and it is not easy for caregivers to observe them all the time. Our wearable sensor detects infants’ sleep positions in real time and automatically alerts the caregivers when needed. MDPI 2019-12-20 /pmc/articles/PMC6983211/ /pubmed/31861930 http://dx.doi.org/10.3390/s20010061 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yun, Inyeol
Jeung, Jinpyeo
Kim, Mijung
Kim, Young-Seok
Chung, Yoonyoung
Ultra-Low Power Wearable Infant Sleep Position Sensor
title Ultra-Low Power Wearable Infant Sleep Position Sensor
title_full Ultra-Low Power Wearable Infant Sleep Position Sensor
title_fullStr Ultra-Low Power Wearable Infant Sleep Position Sensor
title_full_unstemmed Ultra-Low Power Wearable Infant Sleep Position Sensor
title_short Ultra-Low Power Wearable Infant Sleep Position Sensor
title_sort ultra-low power wearable infant sleep position sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6983211/
https://www.ncbi.nlm.nih.gov/pubmed/31861930
http://dx.doi.org/10.3390/s20010061
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