International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Obstacle Sensing Walking Stick for Visually Impaired Nitish Ojha1, Pravin Kumar Pradhan2, Prof. M.V.Patil3 1.2Btech
in Electronics engg . BVDUCOE, Pune, Maharashtra, India
3Professor
in Electronics dept., BVDUCOE, Pune, Maharashtra, India
---------------------------------------------------------------------***--------------------------------------------------------------------1.1 SYSTEM ARCHITECTURE:
Abstract - White stick with the ultrasonic sensor, IR
sensor and various other equipped technologies (Arduino IC, sensors etc.) is the boon for blind people. The application of ultrasonic ranging scheme along with location tracing (GPS Module) for producing electronic walking stick with improved features for the blinds is a technological advancement. Visually impaired people use their senses like touch or sound for walking in a particular area, which is not possible for outdoor walking. To overcome a these problems of blind people, need to develop a project by using simple available technologies. This walking stick for blind people which have multiple sensors, (Ultrasonic and IR) with the help of sensors it has possible to enhance more features to the walking stick. The features are to detect the obstacle for collision avoidance, it detects the object in all the possible direction from the subject. The other sensor placed near bottom tip of the walking cane to find the pits on the ground. The output of these sensors are taken with Voice record in the different tracks; respond for different sensors to give the audio message to the blind person by the speaker to alert. In this project, sensors plays key role to detect the objects and with the use of GSM Module safety is also concerned.
Fig.1 shows the working of the Ultrasonic Stick.
Fig.1 BLOCK DIAGRAM:Fig.2
Key Words: GPS Module, GSM Module, Arduino, Ultrasonic Sensor, IR Sensor. 1.INTRODUCTION Blind stick is a unique and effective tool designed for visually disabled people for improved and easy navigation. We know that visually impaired people are dependent on other human beings or some animals like trained dogs or a wood stick for their movement indoor or outdoor. We proposed a innovative blind stick that allows visually challenged people to navigate with ease using advanced technology. We introduced the features of safety by using GSM Module which will help the guardian of the blind Subject to trace the location as they will receive the SMS of the location on their phone if their subject is lost somewhere or is in some Panic situation. We also made the stick efficient to work in rainy environment also through fabrication of entire module. Our project is Voice based Blind walking stick which makes use of programmed voice for guidance and uses GSM technology for navigation purpose.
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1.2 HARDWARE & SOFTWARE DESCRIPTION A. Hardware used:
ATmega328 GSM SIM 900 module GPS Module Ultrasonic Sensor IR Sensor
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