Ultrasonic Spectacles And Waist- Belt For Visually Impaired And Blind Person

Abstract

The main aim the project is to design “Ultrasonic Spectacles and Waist-belt for Visually Impaired and Blind Person”. This paper presents an electronic navigation system for visually impaired and blind people (subject). This system understands obstacles around it and in front, left and right direction using a network of ultrasonic sensors. It effectively calculates distance of the detected object from the subject and prepares navigation path accordingly avoiding obstacles. It uses speech feedback to aware the subject about the detected obstacle and its distance. This proposed system uses AT89S52/LPC2148 microcontroller based embedded system to process real time data collected using ultrasonic sensor network. Based on direction and distance of detected obstacle, relevant pre-recorded speech message stored in Voice and play back circuit. Such speech messages are conveyed to the subject using speaker on voice and playback circuit.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM