基于电磁跟踪系统的人体上肢运动分析

Analysis of Human Upper-Limb Motion Using Electromagnetic Tracing System

通过电磁跟踪系统采集人体上肢运动数据信息,提出了一种分析处理运动数据信息并最终得到关节旋转角度的新方法。基于此方法理论,运用VC编制了一套人体上肢运动分析程序,并通过实验来进一步验证了这种方法理论的正确性,最后对影响电磁系统测量精度的距离LT-S(即发射源与传感器之间的距离)进行了分析讨论,确定了其范围在20cm～70cm之间。

Electromagnetic tracing system has been applied in the measurement of human upper-limb motion, and in this paper a new method is proposed to calculate joint rotation angles by motion information from the sensors of the electromagnetic system, It is approved this method is correct by experiment .Finally the distance LT-S （the distance from transmiter to sensors） that influence the accuracy of the electromagnetic system is analyed and disscussed, then the distance LT-S is obtained in the range from 20cm to 70cm.