Psychological Analysis of Avoidance Motion of Robots Using Semantic Differential Method

Abstract

For the coexistence of human and robots, it is important for robots to have not only a physical safe but also a psychological safe. When we consider avoidance motion of robots from an unexpected human approach, it is necessary for robots to have comfortable motion that can ease a psychological burden. In this research, we adopt a control strategy in which a robot follows human motion at an interval of desirable distance in front of the human firstly. Next, we evaluate human emotions to the avoidance motion of the robot that follows the strategy using SD method. The results of SD method show that the adopted control strategy is excellent when the distance and motion speed of given task are appropriate simultaneously, and that human emotions to the avoidance motion are represented by the factors of "speed" and "agreeability".