Fabricating a smart clothing system based on strain-sensing yarn and novel stitching technology for health monitoring  

作　　者：TANG Jian WU YuTing MA ShiDong ZHANG YuMin XU RuoJie YAN Tao PAN ZhiJuan 

机构地区：[1]College of Textile and Clothing Engineering,Soochow University,Suzhou 215123,China [2]National Engineering Laboratory for Modern Silk,Suzhou 215123,China

出　　处：《Science China(Technological Sciences)》2024年第2期587-596,共10页中国科学（技术科学英文版）

基　　金：supported by the Qing Lan Project;the Third-Priority Academic Program Development of Jiangsu Higher Education Institutions;the Science and Technology Guidance Project of China National Textile and Apparel Council(Grant No.2020102);the Primary Research&Development Plan of Jiangsu Province(Grant No.BE2019045)。

摘　　要：Various yarn-shaped flexible strain sensors have recently been developed.However,research is lacking on additive manufacturing for smart clothing for integrating yarn sensors with commercial garments.Herein,a strain-sensing yarn is sewn into a piece of fabric through a novel stitching technique,and the influence of the stitching method and needle pitch on the sensing performance is investigated using finite element analysis(FEA).The sensing performance could be improved when the sensing yarn is self-locked in the fabric at the needle eyes,and the needle pitch was reduced to 0.5 cm,which is attributed to the enhanced stress and strain concentration.Meanwhile,the composite sensing fabric featured outstanding performance,including a low detection limit(0.1%),rapid response(280 ms),excellent durability(10000 cycles),and high stability(negligible drift and frequency independence).In addition,the remarkable wear resistance,washability,and anti-interference to ambient humidity and perspiration were obtained.Therein,the optimal stitch trace lengths of sensing yarn for detecting elbow motion,breathing,and heartbeats are discussed.Finally,a smart clothing system composed of smart clothing,data acquisition unit,and mobile APP was developed to simultaneously detect human movement and physiological signals.This work provides a reference to produce intelligent garments based on yarn sensors for health monitoring.

关 键 词：strain-sensing yarn composite sensing fabric smart clothing system stitching technology health monitoring 

分 类 号：TS941.17[轻工技术与工程—服装设计与工程] TP212[自动化与计算机技术—检测技术与自动化装置]