Abstract
As for the mechanism of the movement in omni-directions, the smooth moves are more possible than conventional mechanisms, and the applications to electric vehicles and a personal mobility are expected. However, more complex operations are needed as for omni-direction mover. Therefore, the development of an easy-to-use human-machine-interface (HMI) for the user is needed. In this study, we investigate the technique for evaluating the usability of the HMI by using the movement in omni-directions. We also evaluate the usability using evaluation parameters such as the time of task completion and the time of protrude the line.