NEW_WHITE CANE / medical instruments

"NEW WHITE CANE" grasps position of object using ultrasonic wave.
"NEW WHITE CANE" sends ultrasonic wave continuously and receives it again reflected from objects so that analyzes and recognizes surrounding environment that wish to sense distance of object, direction, size.

Ultrasonic wave can analyze surrounding environment easily with directivity and sharp.
When an object approaches, the projection associated the object acts equally with movement of the object so it can recognize that the object is approaching with tactile sensation.
So, strength and reaction rate of projection change.