抄録
In this paper, an electric wheelchair control system with Brain-Computer-Interface (BCI) is discussed for a disabled person who cannot operate joystick by his/her hands. A biosignal acquisition BCI headset, Emotiv EPOC which can detect electroencephalogram by 14 electrodes and head movement by two gyroscope sensors, is attached to the user's head, and expression of user's face and movement of user's head are distinguished. Then, control command to the electric wheelchair is assigned to each user's motion. Thus, using the motorized control device of the joystick developed in our previous study, the electric wheelchair can be controlled by user's face expression and head movement, without using user's hands. In order to evaluate the developed system, experiment which investigates accuracy of recognition for the control commands and slaloming experiment were carried out. The results showed the effectiveness of the proposed system, while some improvements to enhance the operability are required.
