Smart Blind Stick With Ultrasonic Sensor Pdf

Almost 30 million people are blind according to the recent who report.

Smart blind stick with ultrasonic sensor pdf.

Presented here is a smart stick using arduino uno. Smart blind stick project using arduino and sensors. In this project we will learn how to design blind walking stick using arduino ultrasonic sensor hc sr04. These blind people are totally dependent on others as they can t walk alone.

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. Of course you can use a vibrator motor in place of buzzer and advance a lot more using your creativity. We here propose an advanced blind stick that allows visually challenged people to navigate with ease using advanced technology. The smart stick is built on arduino pro mini.

However the study conclusion shows that using the ultrasonic sensors would be an efficient solution to detect the obstacles. Ultrasonic sensor sends high frequency pulses these pulses reflects from object and takes as echo time between echo and trig is measured by the microcontroller or arduino which is. Person suffering from night blindness cataracts glaucoma albinism or injury. The ultrasonic sensors work efficiently in an angle of 45 degrees.

Blind walking stick using arduino ultrasonic sensor hc sr04. 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. 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. 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.

Obstacle detection is one of the major concerns for a fully or a partially blind person e g. The blind stick is integrated with ultrasonic sensor along with light and water sensing. The stick uses ultrasonic sensors for obstacle detection. Thus the obstacleswhich are in front can.