Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : May 27, 2020 - May 30, 2020
This paper reports on quantitative assessment of human stress in tele-operating a mobile robot. In operating the mobile robot remotely, the operator acquired vision from a camera on the mobile robot, and blood pressure pulse wave was measured during operation constantly. LF/HF, which is one of the indexes for quantitative stress assessment, was used for this research. In calculating LF/HF, Fourier transformed graph of PPI (peak-to-peak interval) is needed. PPI graph is acquired by plotting the period of each two peaks of blood pressure pulse wave. Stress assessment was conducted in 3 situations, sitting position, tele-operation of the mobile robot without delay, and tele-operation of the mobile robot with delay. In comparison to sitting position, LF/HF increased by 114% on average in tele-operation without delay, and 303% on average in tele-operation with delay. Therefore, we could assess stress quantitatively in operating a mobile robot remotely using blood pressure pulse wave.
