Smart Blind Stick With Ultrasonic Sensor Pdf

The smart stick is built on arduino pro mini.

Smart blind stick with ultrasonic sensor pdf. Presented here is a smart stick using arduino uno. Blind walking stick using arduino ultrasonic sensor hc sr04. The blind stick is integrated with ultrasonic sensor along with light and water sensing. This arduino board is small enough to install on a regular stick and has buzzer ldr sensor ultrasonic sensor and a water detector sensor interfaced to it.

This smart stick will have an ultrasonic sensor to sense distance from any obstacle ldr to sense lighting conditions and a rf remote using which the blind man could remotely locate his stick all the feedbacks will be given to the blind man through a buzzer. We here propose an advanced blind stick that allows visually challenged people to navigate with ease using advanced technology. Blind stick is an innovative stick designed for visually disabled people for improved navigation. However the study conclusion shows that using the ultrasonic sensors would be an efficient solution to detect the obstacles.

Thus the obstacleswhich are in front can. The stick also has an rf receiver which connects with an rf transmitter that acts as a remote for finding the stick on missing. An ultrasonic sensor is used for object detection from a variable distance and a vibration actuator is attached with the handle of the stick to provide vibration feedback to the user depending. These blind people are totally dependent on others as they can t walk alone.

A number of techniques for making a smart stick for blind people. Of course you can use a vibrator motor in place of buzzer and advance a lot more using your creativity. The ultrasonic sensors work efficiently in an angle of 45 degrees. Ultrasonic blind walking stick as shown in diagrams there are two openings in ultrasonic sensor first is transmitter or trigger and second is receiver or echo.

In this project we will learn how to design blind walking stick using arduino ultrasonic sensor hc sr04. Almost 30 million people are blind according to the recent who report. Obstacle detection is one of the major concerns for a fully or a partially blind person e g. The stick uses ultrasonic sensors for obstacle detection.