基于智能鞋垫的足部数据可视化系统设计  

Design of foot data visualization system based on intelligent insole

作　　者：林一凡 孙巍伟[1] 张志强[1] 曲明亮 LIN Yifan;SUN Weiwei;ZHANG Zhiqiang;QU Mingliang(School of Mechanical and Electrical Engineering,Beijing Information Science&Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学机电工程学院,北京100192

出　　处：《传感器与微系统》2024年第8期95-98,共4页Transducer and Microsystem Technologies

摘　　要：为了采集人体足部的状态数据并实现数据的实时可视化,本文设计了采集足底压力和足部姿态的下位机,并且在手机终端设计并部署了实时显示下位机采集数据的移动端应用软件。下位机通过8点位薄膜压力传感器获得足底特征点的压力,通过惯性测量单元(IMU)获得足部姿态角,最终将数据打包并通过蓝牙发送给手机;上位机接收并处理数据,最终通过本文研发的3D视图和曲线视图将数据进行可视化。通过佩戴设备进行静态和动态测量实验,通过分析测量数据得出静态测量角度误差为0.08°~0.13°,压力误差为0.2~0.7 kgf,视频帧与3D模型角度偏差低于0.19°。实验结果表明:本文构建的采集和可视化系统具有较高的准确度、实时性以及稳定性,可用于足部状态数据集创建和远程诊断等相关研究。In order to collect status data of human foot and realize real-time visualization of the data,a lower computer to collect the plantar pressure and foot posture is designed,and a mobile terminal application software to display the data collected by the lower computer in real-time is designed and deployed in the mobile terminal.The lower computer obtains the pressure of the characteristic points of the plantar through the 8-point thin film pressure sensor,and obtains the foot attitude angle through the inertial measurement unit(IMU).Finally,the data are packaged and sent to the mobile phone through Bluetooth.The upper computer receives and processes the data,and finally,the data are visualized through the developed 3D view and curve view.Static and dynamic measurement experiments are carried out by wearing equipment.By analyzing measurement data,it is concluded that the angle error of static measurement is between 0.08°and 0.13°,the pressure error is between 0.2 and 0.7 kgf,and the angle deviation between video frame and 3D model is less than 0.19°.The experimental results show that the constructed acquisition and visualization system has high accuracy,real-time performance and stability,and can be used in related studies such as foot state dataset creation and remote diagnosis.

关 键 词：足底压力 智能穿戴 无线通信 可视化 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN87[自动化与计算机技术—控制科学与工程]