S&M Young Researcher Paper Award 2020
Recipients: Ding Jiao, Zao Ni, Jiachou Wang, and Xinxin Li [Winner's comments]
Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

S&M Young Researcher Paper Award 2021
Award Criteria
Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

Instructions to authors
English    日本語

Instructions for manuscript preparation
English    日本語

Template
English

Publisher
 MYU K.K.
 Sensors and Materials
 1-23-3-303 Sendagi,
 Bunkyo-ku, Tokyo 113-0022, Japan
 Tel: 81-3-3827-8549
 Fax: 81-3-3827-8547

MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.


MYU Research

(proofreading and recording)


MYU K.K.
(translation service)


The Art of Writing Scientific Papers

(How to write scientific papers)
(Japanese Only)

Sensors and Materials, Volume 32, Number 7(1) (2020)
Copyright(C) MYU K.K.
pp. 2311-2320
S&M2260 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2020.2869
Published: July 10, 2020

Estimating Temperature Map in Body–Mattress Contact from a Few Thermostats to Prevent Decubitus [PDF]

Wen-Hsien Ho, Ching-Ju Hung, Kao-Shing Hwang, Yenming J. Chen, and Jinn-Tsong Tsai

(Received April 16, 2019; Accepted May 20, 2020)

Keywords: body temperature distribution, unscented Kalman filter, partially observed Markov process, heat flux estimation

Patients who are bedridden for a long time are afflicted with multiple problems. Inactive and bedridden patients under sustained pressure are prone to pressure ulcers. High skin temperature and humidity also induce pressure sores. Thus, using automated assistance to measure contact temperature and humidity is a viable solution. A low-cost monitoring device is desperately needed by institutes to improve the quality of care. We embed a few thermostats inside a mattress and estimate the temperature distribution of the entire body on the contact surface of the mattress. The heat flux and temperature distribution, as well as necessary thermal parameters, can be reversely estimated from the measured temperature trajectories of the embedded thermostats by using heat diffusion equations in the finite difference method and the dual iterative estimation of an unscented Kalman filter. We conduct 1D and 2D experiments in a controlled environment and obtain excellent results. The estimated temperature map and heat flux are accurate for a constant amount of flux. Our algorithm is proven to be pragmatic because our findings show that measurements can be taken without knowing any dimensions or thermal properties of the mattress. This will help to prevent bedridden residents from developing pressure sores.

Corresponding author: Yenming J. Chen, Jinn-Tsong Tsai


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Wen-Hsien Ho, Ching-Ju Hung, Kao-Shing Hwang, Yenming J. Chen, and Jinn-Tsong Tsai, Estimating Temperature Map in Body–Mattress Contact from a Few Thermostats to Prevent Decubitus, Sens. Mater., Vol. 32, No. 7, 2020, p. 2311-2320.



Forthcoming Regular Issues


Forthcoming Special Issues

Special Issue on Advanced Materials and Sensing Technologies on IoT Applications: Part 1(1)
Guest editor, Teen-Hang Meen (National Formosa University), Wenbing Zhao (Cleveland State University), and Cheng-Fu Yang (National University of Kaohsiung)
Call for paper


Special Issue on the International Multi-Conference on Engineering and Technology Innovation 2020 (IMETI2020)
Guest editor, Wen-Hsiang Hsieh (National Formosa University)
Conference website


Special Issue on Advanced Materials and Sensing Technologies on IoT Applications: Part 1(2)
Guest editor, Teen-Hang Meen (National Formosa University), Wenbing Zhao (Cleveland State University), and Cheng-Fu Yang (National University of Kaohsiung)
Call for paper


Special Issue on Artificial Intelligence and Advanced Technologies for Power and Renewable Energy Systems Mainly from IS3C2020
Guest editor, Shiue Der Lu , Meng Hui Wang, Kuei Hsiang Chao, and Her Terng Yau (National Chin-Yi University of Technology)
Conference website
Call for paper


Special Issue on Human-in-the-loop Sensing in Cognitive Robotic Systems
Guest editor, Weiwei Wan (Osaka University), Yiming Jiang (Hunan University), and Daolin Ma (MIT)
Call for paper


Special Issue on Sensing and Data Analysis Technologies for Living Environment, Health Care, Production Management and Engineering/Science Education Applications: Part 2
Guest editor, Chien-Jung Huang (National University of Kaohsiung), Rey-Chue Hwang (I-Shou University), Ja-Hao Chen (Feng Chia University), Ba-Son Nguyen (Research Center for Applied Sciences)
Call for paper


Copyright(C) MYU K.K. All Rights Reserved.