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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Professor, Head of Lab of Intelligent System
其他任职：大连市工业无线传感器网络工程实验室主任
性别：男
毕业院校：英国杜伦大学
学位：博士
所在单位：控制科学与工程学院
学科：控制理论与控制工程. 模式识别与智能系统. 检测技术与自动化装置
办公地点：海山楼A0624
课题组网址http://lis.dlut.edu.cn/
联系方式：0411-84709010 wangzl@dlut.edu.cn
电子邮箱：wangzl@dlut.edu.cn
A Method to Calibrate Installation Orientation Errors of Inertial Sensors for Gait Analysis
点击次数：
论文类型：会议论文
发表时间：2014-07-28
收录刊物：EI、CPCI-S、SCIE
页面范围：598-603
关键字：gait; inertial measurement unit; orientation error; calibration; stride length
摘要：Gait analysis by using wearable inertial sensors has gained tremendous achievements in recent years. A limitation of using inertial measurement unit (IMU) is that inertial signals heavily rely on the correctness of sensor installation. A slight installation orientation error could lead to inaccurate results for quantitative estimation of gait parameters. In this paper, a calibration method was proposed to deal with installation orientation errors of IMU, where the errors were considered as an IMU frame rotating around the standard coordinate system. The proposed method could generate a three-dimensional rotation matrix to calibrate gait signals. By using the calibrated signals, estimation of gait parameters such as calculation of stride length and detection of gait phase can be more accurate. An experiment was performed on our gait monitoring platform based on IMU, and the experimental results demonstrate the effectiveness of the proposed method.