Patient Posture Monitoring System Based on Flexible Sensors

Monitoring patients using vision cameras can cause privacy intrusion problems. In this paper, we propose a patient position monitoring system based on a patient cloth with unobtrusive sensors. We use flexible sensors based on polyvinylidene fluoride, which is a flexible piezoelectric material. The f...

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Detalles Bibliográficos
Autores principales: Cha, Youngsu, Nam, Kihyuk, Kim, Doik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5375870/
https://www.ncbi.nlm.nih.gov/pubmed/28335385
http://dx.doi.org/10.3390/s17030584
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author Cha, Youngsu
Nam, Kihyuk
Kim, Doik
author_facet Cha, Youngsu
Nam, Kihyuk
Kim, Doik
author_sort Cha, Youngsu
collection PubMed
description Monitoring patients using vision cameras can cause privacy intrusion problems. In this paper, we propose a patient position monitoring system based on a patient cloth with unobtrusive sensors. We use flexible sensors based on polyvinylidene fluoride, which is a flexible piezoelectric material. The flexible sensors are inserted into parts close to the knee and hip of the loose patient cloth. We measure electrical signals from the sensors caused by the piezoelectric effect when the knee and hip in the cloth are bent. The measured sensor outputs are transferred to a computer via Bluetooth. We use a custom-made program to detect the position of the patient through a rule-based algorithm and the sensor outputs. The detectable postures are based on six human motions in and around a bed. The proposed system can detect the patient positions with a success rate over 88 percent for three patients.
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spelling pubmed-53758702017-04-10 Patient Posture Monitoring System Based on Flexible Sensors Cha, Youngsu Nam, Kihyuk Kim, Doik Sensors (Basel) Article Monitoring patients using vision cameras can cause privacy intrusion problems. In this paper, we propose a patient position monitoring system based on a patient cloth with unobtrusive sensors. We use flexible sensors based on polyvinylidene fluoride, which is a flexible piezoelectric material. The flexible sensors are inserted into parts close to the knee and hip of the loose patient cloth. We measure electrical signals from the sensors caused by the piezoelectric effect when the knee and hip in the cloth are bent. The measured sensor outputs are transferred to a computer via Bluetooth. We use a custom-made program to detect the position of the patient through a rule-based algorithm and the sensor outputs. The detectable postures are based on six human motions in and around a bed. The proposed system can detect the patient positions with a success rate over 88 percent for three patients. MDPI 2017-03-13 /pmc/articles/PMC5375870/ /pubmed/28335385 http://dx.doi.org/10.3390/s17030584 Text en © 2017 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
Cha, Youngsu
Nam, Kihyuk
Kim, Doik
Patient Posture Monitoring System Based on Flexible Sensors
title Patient Posture Monitoring System Based on Flexible Sensors
title_full Patient Posture Monitoring System Based on Flexible Sensors
title_fullStr Patient Posture Monitoring System Based on Flexible Sensors
title_full_unstemmed Patient Posture Monitoring System Based on Flexible Sensors
title_short Patient Posture Monitoring System Based on Flexible Sensors
title_sort patient posture monitoring system based on flexible sensors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5375870/
https://www.ncbi.nlm.nih.gov/pubmed/28335385
http://dx.doi.org/10.3390/s17030584
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