Study on programmable gain in ultrasonic guidance system for the blind / 医疗卫生装备
Chinese Medical Equipment Journal
;
(6)1993.
Artículo
en Chino
| WPRIM
| ID: wpr-586699
ABSTRACT
Ultrasonic sensors are optimal to the guidance system for the blind.The previous ultrasonic guidance systems acquire the position information of obstacles,and transform it into audio signal or tactile vibration.The system developed in this paper,utilizing programmable gain technique and digital potentiometer,acquires the power of reflected ultrasonic as additional information,and informs the blind with modulated audio signal.In this paper,the studies on programmable gain is described detailed including the hardware structure,the software design and information post processing.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Tipo de estudio:
Guía de Práctica Clínica
Idioma:
Chino
Revista:
Chinese Medical Equipment Journal
Año:
1993
Tipo del documento:
Artículo
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