A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor

Monitoring gait patterns in daily life will provide a lot of biological information related to human health. At present, common gait pressure analysis systems, such as pressure platforms and in-shoe systems, adopt rigid sensors and are wired and uncomfortable. In this paper, a biomimetic porous grap...

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Autores principales:	Tianrui Cui, Le Yang, Xiaolin Han, Jiandong Xu, Yi Yang, Tianling Ren
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	pressure sensor porous structure gait analysis in-shoe system graphene Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d42cbc195fe24809829bca401f8a70b6
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spelling	oai:doaj.org-article:d42cbc195fe24809829bca401f8a70b62021-11-11T18:03:01ZA Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor10.3390/ma142164751996-1944https://doaj.org/article/d42cbc195fe24809829bca401f8a70b62021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6475https://doaj.org/toc/1996-1944Monitoring gait patterns in daily life will provide a lot of biological information related to human health. At present, common gait pressure analysis systems, such as pressure platforms and in-shoe systems, adopt rigid sensors and are wired and uncomfortable. In this paper, a biomimetic porous graphene–SBR (styrene-butadiene rubber) pressure sensor (PGSPS) with high flexibility, sensitivity (1.05 kPa<sup>−1</sup>), and a wide measuring range (0–150 kPa) is designed and integrated into an insole system to collect, process, transmit, and display plantar pressure data for gait analysis in real-time via a smartphone. The system consists of 16 PGSPSs that were used to analyze different gait signals, including walking, running, and jumping, to verify its daily application range. After comparing the test results with a high-precision digital multimeter, the system is proven to be more portable and suitable for daily use, and the accuracy of the waveform meets the judgment requirements. The system can play an important role in monitoring the safety of the elderly, which is very helpful in today’s society with an increasingly aging population. Furthermore, an intelligent gait diagnosis algorithm can be added to realize a smart gait monitoring system.Tianrui CuiLe YangXiaolin HanJiandong XuYi YangTianling RenMDPI AGarticlepressure sensorporous structuregait analysisin-shoe systemgrapheneTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6475, p 6475 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pressure sensor porous structure gait analysis in-shoe system graphene Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	pressure sensor porous structure gait analysis in-shoe system graphene Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Tianrui Cui Le Yang Xiaolin Han Jiandong Xu Yi Yang Tianling Ren A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor
description	Monitoring gait patterns in daily life will provide a lot of biological information related to human health. At present, common gait pressure analysis systems, such as pressure platforms and in-shoe systems, adopt rigid sensors and are wired and uncomfortable. In this paper, a biomimetic porous graphene–SBR (styrene-butadiene rubber) pressure sensor (PGSPS) with high flexibility, sensitivity (1.05 kPa<sup>−1</sup>), and a wide measuring range (0–150 kPa) is designed and integrated into an insole system to collect, process, transmit, and display plantar pressure data for gait analysis in real-time via a smartphone. The system consists of 16 PGSPSs that were used to analyze different gait signals, including walking, running, and jumping, to verify its daily application range. After comparing the test results with a high-precision digital multimeter, the system is proven to be more portable and suitable for daily use, and the accuracy of the waveform meets the judgment requirements. The system can play an important role in monitoring the safety of the elderly, which is very helpful in today’s society with an increasingly aging population. Furthermore, an intelligent gait diagnosis algorithm can be added to realize a smart gait monitoring system.
format	article
author	Tianrui Cui Le Yang Xiaolin Han Jiandong Xu Yi Yang Tianling Ren
author_facet	Tianrui Cui Le Yang Xiaolin Han Jiandong Xu Yi Yang Tianling Ren
author_sort	Tianrui Cui
title	A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor
title_short	A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor
title_full	A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor
title_fullStr	A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor
title_full_unstemmed	A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor
title_sort	low-cost, portable, and wireless in-shoe system based on a flexible porous graphene pressure sensor
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d42cbc195fe24809829bca401f8a70b6
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A Low-Cost, Portable, and Wireless In-Shoe System Based on a Flexible Porous Graphene Pressure Sensor

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