一种基于光学动作捕捉技术的座椅舒适性评价方法

为研究坐姿的舒适性评价方法,以评估一种人机工程座椅和普通座椅之间的舒适差异性为例,提出一种实验测试方法并结合人机工程学理论来评估坐姿的舒适性。在该方法中,基于光学运动捕捉系统、压力传感器和JACK软件,通过EVART实时动作捕捉软件获得人体动作空间运动轨迹TRC文件,用MATLAB软件进行人体动作数据分析处理,获得人体在不同座椅上坐姿状态的角度差异数据,然后将TRC文件导入到JACK软件中,利用JACK软件中的TAT REPORTER工具输出肌力、力矩、疲劳等数据,与实验实际测量的数据进行对比分析,并用人机工程学的方法分析评价。研究表明,这种综合考虑关节角度和JACK软件输出数据的方法能有效地评估坐姿的舒适性。

An evaluation method on seat comfort based on optical motion capture

To research the sitting posture comfort evaluation method, through the example of comfort evaluation of the ergonomic seat and standard office seat, a methodology is introduced to evaluate the sitting posture comfort combining ergonomics theory. The proposed method is based on optical motion capture system, pressure sensor and JACK software, and TRC file is acquired by using EVART real-time capture software for identifying the spatial motion trail of human body. Then MATLAB software is used to analyze the human body motion data, and the sitting posture angle difference data for human body in different seats is acquired. TRC file is loaded into JACK software, and with the TAT REPORTER of JACK software, muscle force, moment of force and fatigue data, etc. are output, which are compared with the actual measured data from experiments, and ergonomics method is used for the evaluation. The result shows that the method of considering joint angles combining JACK software for data output is effective for evaluating sitting comfort.