標題: A Walking Velocity Update Technique for Pedestrian Dead-Reckoning Applications
作者: Lo, Chi-Chung
Chiu, Chen-Pin
Tseng, Yu-Chee
Chang, Sheng-An
Kuo, Lun-Chia
資訊工程學系
Department of Computer Science
關鍵字: body sensing;inertial measurement unit;location tracking;pedestrian dead-reckoning;wireless sensor network
公開日期: 2011
摘要: Inertial sensors for pedestrian dead-reckoning (PDR) have been attracting considerable attention recently. Since accelerometers are prone to the accumulation of errors, a "Zero Velocity Update" (Z-UPT) technique [1], [2] was proposed as a means to calibrate the velocity of pedestrians. However, these inertial sensors must be mounted on the bottom of the foot, resulting in excessive vibration and errors when measuring speed or orientation. This paper proposes a self-calibrating PDR solution using two inertial sensors in conjunction with a novel concept called "Walking Velocity Update" (W-UPT). One inertial sensor is mounted on the lower leg to identify a point suitable for calibrating the walking velocity of the user (when its pitch value becomes zero), while another sensor is mounted on the upper body to track the velocity and orientation. We have developed a working prototype and tested the proposed system using actual data.
URI: http://hdl.handle.net/11536/15428
ISBN: 978-1-4577-1348-4
期刊: 2011 IEEE 22ND INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC)
起始頁: 1249
結束頁: 1253
顯示於類別:會議論文