Voice Guide Walking Stick using Ultrasonic Sensor

Abstract

Basically, the ultrasonic detector is enforced within the walking stick for detection the obstacles ahead of the blind/impaired persons. If there are any obstacles, it will alert the blind man to avoid that obstacles and therefore the alert in Our project proposes a low-priced walking stick supported latest technology and a brand-new implementation are created for economical interface the shape of voice announcement and buzzer to form a lot of helpful the stick is additionally mounted with the water detector that detects and alerts the blind if any wetness content is present to avoid slippery methods. Daily in several aspects so as to produce versatile and safe movement for the individuals. During this technology driven world, wherever individuals try to measure severally, this project propose a low-priced stick for blind individuals to achieve personal independence, in order that they will move from one place to a different simply and safely. A conveyable stick is style and developed that detects the obstacles within the path of the blind using sensors. The buzzer and vibration motor are activated once any obstacle is detected. Additionally, the stick is provided with GPS and SMS message system. GPS system give the knowledge relating to the situation of the blind man using the stick with his relations. SMS system is employed by the blind to send SMS message to the saved numbers within the microcontroller just in case of emergency.

Existing System

This system introduced a smart electronic aid for the visually impaired people. The smart cane provides a solution to the visually impaired that face complications in detecting obstacles and changes in the environment. The smart cane comprises three sensors: infrared sensor, ultrasonic sensor and flame sensor. These sensors are implemented and programmed using a microcontroller (Arduino UNO R3). This stick can detect obstacles that lie in the range of about 2m from the user. This system aims to provide reliable smart cane that would help the visually impaired to navigate freely.

Proposed System

The 5-volt DC supply is given to microcontroller AT89S52 and all the sensor for supply voltage. The input components of microcontroller are ultrasonic sensor, water sensor, accelerometer, IR flame sensor, GPS neo6 and output components of microcontroller is LCD 16 x2 display, Buzzer, Audio Player and GSM 800C, Vibrator. The microcontroller is provided the instructions through programme. Then the input sensors sense and the logic is provided to microcontroller, then microcontroller will send the output from according to desired programme to output components, which is LCD display, audio player, buzzer, vibrator gsm sim. By the application of voice playback module in any language instructions can give so these stick we will use worldwide. The main function of our model is sending emergency message to the take careers of blind person within 2 minutes and also location which is effectively done by the application of GSM and GPS module.

Architecture

BLOCK DIAGRAM