Abstract
This paper describes the mechanism and the control system of a seahorse robot that is able to express happiness, sadness and anger. MP motion sensors (Pyroelectric Motion Detection Sensor), force sensors and light sensors are employed for the emotion expression. The seahorse robot consists of a base, a body and a head. It has 4 DOFs (2 DOFs in the head and 2 DOFs in the body) and its weight is 800 [g]. Emotion expression experiments were conducted to confirm the mechanism and the control system of the robot and were evaluated by ten subjects. After they watched the body color and motion, they select one of five emotions. The effectiveness of the mechanism and the control of the robot are verified through emotion experiments.
