IOT BASED SMART SPEECH GUIDANCE FOR VISUALLY IMPAIRED USING CORTEX M3

Electronics and Communication Engineering

NATIONAL CONFERENCE on VLSI, COMMUNICATION AND SIGNAL PROCESSING (NCVCS-2017)

This paper describes the development of a navigation aid in order to assist blind and visually impaired people to navigate easily, safely and to detect any obstacles. The system is based on a microcontroller with synthetic speech output. In addition, it consists of two vibrators, two ultrasonic sensors mounted on the user’s shoulders and another one integrated into the cane. This aid is able to give information to the blind about urban walking routes and to provide real-time information on the distance of over-hanging obstacles within six meters along the travel path ahead of the user. The suggested system consists then in sensing the surrounding environment via sonar sensors and sending vibro-tactile feedback to the user of the position of the closest obstacles in range. For the ultrasonic cane, it is used to detect any obstacle on the ground. This system enables the caretaker of user to keep track of him/her through IOT, where in case of any emergencies caretaker can easily know where exactly the user is. Additionally caretaker also receives a message to his mobile during emergencies.

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