基于惯性传感器的双足运动跟踪步态分析。

Department of Electrical Engineering, University of Ulsan, Namgu, Ulsan 680-749, Korea.

Sensors (Basel). 2013 Apr 29;13(5):5614-29. doi: 10.3390/s130505614.

Two feet motion is estimated for gait analysis. An inertial sensor is attached on each shoe and an inertial navigation algorithm is used to estimate the movement of both feet. To correct inter-shoe position error, a camera is installed on the right shoe and infrared LEDs are installed on the left shoe. The proposed system gives key gait analysis parameters such as step length, stride length, foot angle and walking speed. Also it gives three dimensional trajectories of two feet for gait analysis.

该系统使用两个安装在鞋子上的惯性传感器估计人体的脚步动作，通过惯性导航算法估计双脚的运动。为了校正鞋子之间的位置误差，在右脚鞋子上安装了一个摄像头，在左脚鞋子上安装了红外 LED。该系统给出了关键的步态分析参数，如步长、跨步长、脚角度和行走速度。此外，它还给出了用于步态分析的双脚三维轨迹。