抄録
The child who had a handicap in the motor function is difficult to perform autonomous mobile. Motor dysfunction disturbs movement. Furthermore, it becomes an obstacle even if it puts on mental development. Our research group is manufacturing the electric wheelchair in order that a child with motor dysfunction can move independently. The operational support for the collision avoidance is required in order that a child operates it safely. This research aims at establishment of the collision avoidance which uses an ultrasonic sensor. Wide range environment information acquisition was performed by using some ultrasonic sensors. The situation of the obstacle has realized stop and avoidance by using an ultrasonic sensor.
