Blind Aid Navigation Stick

Summary: The Blindness is frequently used to describe severe visual impairments with or without residual vision. The application of ultrasonic ranging scheme for producing electronic walking stick for the blind is a technological advancement. There is a great dependency for any type of movem

Project Title

Blind Aid Navigation Stick

Project Area of Specialization

Wearables and Implantable

Project Summary

Summary:

The Blindness is frequently used to describe severe visual impairments with or without residual vision. The application of ultrasonic ranging scheme for producing electronic walking stick for the blind is a technological advancement. There is a great dependency for any type of movement or walking within area or out of the particular area, they use only their natural senses such as touch or sound for identification or walking. To overcome all these problems of blind people, we are developing a project by using simple available technologies. This walking stick for blind people has multiple sensors, with the help of which it has been possible to enhance more features to the walking stick. The features are to detect the obstacle for collision avoidance, it detects the object in directions up, down and front. The other sensor placed near bottom tip of the walking cane to find the pits on the ground. We integrate these sensors to the voice record and play chip. In this project, sensors play a key role to detect the objects in all directions and thus help blind people to be independent.

Project Objectives

Objective of the project:

     The aim of this project is to help the visually impaired people around the world. This project can help a person to go anywhere without the help of any other person, the device will come in aid by directing a person towards the location where they want to go, the device will detect the obstacles and give the right possible direction.

Project Implementation Method

In this system the ultrasonic sensors are used to sense the obstacle (if there is any). The sensors are set a threshold limit if any obstacle is found within that range it gives beep speech through speaker. Obstacles found in different directions are indicated with different pattern beep and speech (Top, Middle, Pit and Water) to identify them easily. The ultrasonic sensors emit soundscapes with frequency lying in ultrasonic spectrum (>20kHz), which is inaudible to human ears. The sound waves hits the obstacle and bounces back to detectors. The ultrasonic sensor is used for detecting objects/obstacles which are in front whereas the two IR sensors are used to detect the obstacles on the sides. After the collection of data the calculations are done according to the formula : uS / 58 = centimeters or uS / 148 =inch. Once the distance of the obstacle is calculated then the conditions are checked. The signal is then send to Arduino to operate a buzzer.  The microcontroller reads the distance of the obstacle using sensor and also commands the buzzer. The buzzer beeps once for left side obstacle, twice for front obstacles and thrice for right obstacles. The vibrator is also connected in parallel with the buzzer for vibration sensation. The light sensor is gives a feedback about the environment. That is it informs the user if it's day or night or if a particular place is dark or bright. The moisture sensor is used to detect water pits or any puddles if present. All these signals are then sent to the microcontroller which in turn sends signal to the buzzer thereby alerting the user.

Benefits of the Project

Benefits:

•The system can be used both indoor and outdoor navigation.

• it tells about the rain & buzzer operate 3 times.

• Detects obstacles and alerts the blind person through vibration alert and speech output.

Technical Details of Final Deliverable

Interfacing of different components:

First we use arduino Uno to control the operations of all the sensors used here. Each and every sensor have its own designated programming. When the specific sensors sense its working area being disturb or interupted its sense the signal to the arduino which inturn sense signal to the buzzer to beep until the distrubance is overcome.

Buzzer, LDR, water sensor, Ultrasonic sensor, vibrator motor, Relay are the main parts that are being interface here with the arduino UNO.

Final Deliverable of the Project

Hardware System

Type of Industry

Medical

Technologies

Wearables and Implantables

Sustainable Development Goals

Reduced Inequality

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com