基于柔性触觉传感器的坐姿压力监测系统设计

摘要

提出了一种有效监测人体坐姿压力的系统,设计了柔性触觉传感器阵列,基于多路模拟开关CD4051、微处理器MSP430与无线发送模块实现数据的采集与传输,在上位机软件中通过低通滤波、配色与插值算法,并应用分布式压缩感知理论,形成了模拟人体坐姿压力分布的彩色图像,图像真实清晰,便于观察.实验结果表明:系统稳定性和分辨率较好,且能够实现坐姿压力分布的实时测量和显示.%An effective monitoring system of body sitting posture pressure is proposed. A flexible tactile sensor array is designed,a multi-channel analog switch CD4051,microprocessor MSP430G2553 and wireless transmission module for data acquisition and transmission. Through low-pass filtering,color matching and interpolation algorithm in upper PC software,distributed compressed sensing theory is applied,color images which simulates human body' s sitting posture pressure distribution is formed,the image is ture,clear and convenient for observation. Experimental results indicate that the system has good stability and resolution,and real-time measurement and display of sitting posture pressure distribution can be achieved conveniently.