Project Name : The path finding four sensor stick for the blind and bus identifier
Theme Name : Transport & Communication
Objective/Aim:
To facilitate a blind person in path clearing assistance and obstacle detection.
To help a blind person by guiding him/her with help of bus identification device regarding the arrival of a specific bus.
Scientific Principle involved: This project has converted the normal blind stick into modified Autonomous blind stick. In the stick, four different sensors with micro-controller interface had been used. The four sensors are:-
Interruption sensor, Temperature sensor, Light sensor; and Water sensor
This project uses IC 89C51 as a main micro-controller to interface the blind stick with the different sensor’s and different sound.
Material Used: This project is consists of many components. Some of the important components
used are as follows:-
For blind stick-Micro Controller, Voice Processor, Volt regulator. Transistor, Push to On Switch, Condenser Mike, Variable resister, Capacitor, L.E.D resister.
For bus – RF Transmitter, microcontroller, encoder IC, decoder IC , voice processor, Rf module receiver, keypad , mike, power supply circuit.
Working Investigation/Findings: In this project we are using IR sensor for interruption or to find the object in their path. The IR sensor detect object in very a limited range. We can increase its detection distance by using ultrasonic sensors.
The bus identifier system helps the blind people to know about arrival of a specific bus in a bus stand, but it does not enable such person to catch the bus.
Utility and further scope of the project: Most of the blind have the desire to stay independent as long as possible. This is also true for persons with impaired vision, a growing group as more and more people grow old. However, elderly persons are afraid to rely on new and unknown technology. Our concept of combining traditional aids with innovative technologies may also be a solution for persons suffering from other sensory deficits. the near future this project will help the blind persons to be more independent and to be self dependent. We can also make stick in vibration mode. This will help the blind persons to sense the obstacles more effectively.
Name of the School: Lalit Mahajan SVM School, Vasant Vihar, New Delhi.
