VOICE GUIDANCE SYSTEM FOR BLIND IN TRAFFIC SIGNAL, BUS MONITORING AND OBSTACLE IDENTIFICATION BY USING ULTRASONIC SENSOR
Author’s Name : Kirubakaran S
Volume 02 Issue 04 Year 2015 ISSN No: 2349-252X Page no: 1-4
Abstract -A Survey is Conducted by WHO (World Health Organization) in 2014 on Disability, 269 million visually impaired as well as 49 million blind People found worldwide. Now-a -days there are more facilities available for visually impaired people. The features are done based on the recent technological development in automation. Recent technologies are based on either sensor based or vision based. In most of the system the device use to receive the reflected waves and produces the vibration or audio in order to detect the Obstacles, but here the Voice Guidance System will clearly denotes about monitoring the traffic signal, Obstacle Identification and Bus Route Monitoring for Visually Impaired and Challenged People. Ultrasonic Sensor is used to do all the things for challenged people. Ultrasonic sensors are based on the measurement of the properties of acoustic waves with frequencies above the human audible range often at roughly 40 kHz.
Keywords –Ultrasonic Sensors, Voice Guidance system, Visually impared, sensor based, Automation