AUTHOR=Zhang Jie , Ding Huanxiang 

TITLE=Exploration on flexible wearable sensor motion monitoring based on novel functional polymer conjugated materials

JOURNAL=Frontiers in Chemistry

VOLUME=Volume 11 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2023.1265211

DOI=10.3389/fchem.2023.1265211

ISSN=2296-2646

ABSTRACT=With the continuous development of technologies such as flexible electronics,multifunctional device integration, and artificial intelligence, sensors are gradually moving towards intelligence, diversification,miniaturization, and flexible wearability.Flexible wearable sensors are also playing an increasingly important role in people's daily motion monitoring.However, the current flexible wearable sensors have problems such as low accuracy, poor real-time performance, and low stability in motion monitoring,which seriously hinder the better application of flexible wearable sensors and are not conducive to the collection and monitoring of motion signals.To address these issues and promote the better development of flexible wearable sensors, this article provides a detailed explanation of the preparation and performance of new functional polymer conjugated materials. Copper tape is used to fix the conductive fiber membrane at both ends of the electrode, and a conjugated material compound is applied between the two.The conjugated material with ultra-thin structure is used as the conductive filler, and the conjugated material is wrapped on the surface of TPU fibers using ultrasonic dispersion method, the conjugated material nanosheets are uniformly distributed on TPU fibers, forming a conductive channel for conjugated materials. After preparing flexible wearable sensors using new functional polymer conjugated materials, this paper also designed a motion monitoring system for flexible wearable sensors and tested its performance. The research results indicate that the motion monitoring system designed based on the flexible wearable sensor of a new functional polymer conjugated material has good monitoring accuracy and real-time performance. When the output data is 500, the accuracy of running motion monitoring reaches 95.4%,and the monitoring feedback time is 0.321 seconds;The accuracy of monitoring high jump movement reached 97%,with a monitoring feedback time of 0.287 seconds; The accuracy of monitoring long jump movement reached 96%, with a monitoring feedback time of 0.296 seconds. This indicates that the flexible wearable sensor motion monitoring system in this article has better performance and can meet the current needs for accuracy and real-time motion monitoring.This study highlights the impact of novel functional polymer conjugated materials on flexible wearable sensors, which helps to further address the shortcomings of flexible wearable sensors in motion monitoring and promote their better development.