1.
Chinese Medical Equipment Journal
;
(6)2004.
Artículo
en Chino
| WPRIM
| ID: wpr-587117
RESUMEN
This paper introduces an assist system for the blind.It utilizes ultrasonic to measure the distance and speed.Then the distance signal is converted to position of slip block and the speed signal is converted to tone.The main function of this sytem is to assist the blind to determine distance and speed of objects.It is practical,Simple and inexpensive.