Haptic Feedback System For Visually Impaired People
Prof. Sachin R Kokane
Professor Electronics and telecommunication engineering, AISSMS Institute of Information, Technology,Pune,India , IN
Alankar Muley
Professor Electronics and telecommunication engineering, AISSMS Institute of Information, Technology,Pune,India , IN
Chaitanya Saraf
Professor Electronics and telecommunication engineering, AISSMS Institute of Information, Technology,Pune,India , IN
Shraddha Taru
Professor Electronics and telecommunication engineering, AISSMS Institute of Information, Technology,Pune,India , IN
Keywords: Visually impaired, ultrasonic sensors, GPS, localization, navigation system, mobility, RFID, indoor navigation ,outdoor navigation, distance measurement
Abstract
Visually impaired people find difficulties detecting obstacles in front of them, during walking in the street, which makes it dangerous. The smart stick comes as a proposed solution to enable them to identify the world around. In this paper we propose a solution, represented in a smart stick with infrared sensor to detect stair-cases and pair of ultrasonic sensor to detect any other obstacles in front of the user, within a range of four meters. Moreover, another sensor is placed at the bottom of the stick for the sake of avoiding puddles. Speech warning messages and the vibration motor are activated when any obstacle is detected. This proposed system uses the microcontroller ATmega embedded system, vibration motor .The stick is capable of detecting all obstacles in the range 4 meter and gives a suitable respect message empowering blind to move twice his normal speed because she/he feels safe. The smart stick is of low cost, fast response, low power consumption, light weight and ability to fold.
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