基于足底压力采集系统和压力中心的人体稳态判定方法

Judgment Method of Human Steady State Based on Plantar Pressure Acquisition System and Center of Pressure

设计一种可穿戴的无线足底压力采集系统,并提出基于人体足底压力中心(CoP)的人体稳定状态判定方法.首先,使用该系统采集人体站立和行走时稳定和临界失稳状态下的足底压力数据;其次,通过足底压力信息获取人体稳定行走状态下CoP活动轨迹的区域和边界;最后,采集当前时刻的CoP,通过对当前时刻CoP与人体最大稳定CoP的轨迹区域及边界范围进行对比,实现对人体行走过程的稳定状态判定.结果表明,设计的可穿戴式无线足底压力采集系统具有可穿戴性,方便测量人体足底压力数据,实验验证了基于足底压力采集系统和压力中心的人体稳态判定方法有效.

We designed a wearable wireless plantar pressure acquisition system and proposed a method for determining the stable state of the human body based on the center of pressure(CoP)of the human body.Firstly,the system was used to collect the plantar pressure data in the stable and critical instability states when the human body was standing and walking.Secondly,the area and boundary of the movement locus of the center of pressure in the stable walking state of the human body were obtained through the plantar pressure information.Finally,the CoP at the current moment was collected,and by comparing the trajectory area and boundary range of the CoP at the current moment with the maximum stable CoP of the human body,the stable state judgment of the human walking process was achieved.The results show that the designed wearable wireless plantar pressure acquisition system is wearable and convenient for measuring human plantar pressure data.The experimental verification shows that the human body steady state judgment method based on plantar pressure acquisition system and center of pressure is effective.