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IJSTR >> Volume 5 - Issue 6, June 2016 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Assistive Device For Visually Impaired People By Using Ultrasonic Sensors

[Full Text]



Hninn Nandar Aye, Aye Thin Naing, Hla Myo Tun



Assistive device, detection system, avoidance system, ultrasonic sensors, vibrator, servo motor, buzzer, LDR.



The visually impaired people need some aid to walk and move safety in their surroundings. The ordinary people cannot know how hard it is to live and move in daily life for the blindness, the visually impaired people and the old person who has poor vision. Although the sighted people cannot help the blindness to regain the eyesight, the visually impaired one can try to make easier the daily routine by using the assistive device that can detect the obstacles near the blindness and the visually impaired people, and warn the alert to the users before accidence. This assistive device like walking stick contains ultrasonic sensors, PIC microcontroller (Peripheral Interface Controller), LDR, vibrator, servo motor, buzzer and LED. Ultrasonic sensors are used for sensing and detecting the obstacles near the user to avoid the dangerous condition. Vibrator and buzzer are used for providing the alert to know that the obstacle is near. Servo motor is used for turning the wheel easily without effort. LDR and LED is used for lighting in low light room and at night to know the ordinary or sighted people where the walking stick is, so, this assistive device will be safe from the other people’s hit.



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