A Novel Motion Sensor with Nine Degrees of Freedom
In this paper, a group of new multi-axis MEMS sensors including triaxial gyroscope (ITG-3200), triaxial accelerometer (ADXL345) and triaxial magnetometer (HMC5843) are incorporated to develop a motion sensor with nine degrees of freedom (9D), which can communicate with personal computer through a Bluetooth wireless module. A simplified threedimensional orientation estimation method is proposed in this paper to implement real-time estimation of triaxial orientation. To test accuracy of the new sensor system, validation experiments by using reference measurements of a commercially available measurement system were performed in a gait laboratory. Experiment results supported that the wireless 9D sensor can be used to measure 3D orientations with an acceptable precision.
MEMS motion sensor gait Kalman filter orientation.
Tao Liu Yoshio Inoue Kyoko Shibata
Dep. of Intelligent Mechanical Systems Engineering Kochi University of Technology Kami, Japan
国际会议
上海
英文
1033-1036
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）