BLInd NAVigation

Hey Guys, this post is different from the other posts as it is about one of our own projects. We created a device called the BLINAV. From the name it is apparent that we created it to help blind people navigate to their destination. It was created by a group of 5 people : Siddharth (Admin), Rahul (Admin), Amith, Madhan (Admin), Vikram. We also figured out that a similar model was created by a student from the Rajasthan University, whose model also gave us a few ideas.

The aim of this project is for a social cause. The objective of this project is to help the blind and make them independent so that they could lead a life of normal people. This idea erupted when I found a blind looking out for favor to cross the road and lead him to his destination. It all started with the thought that a sensor could be used to detect obstacles and send the response to an output device.

Arduino is the standard way that connectors are exposed, allowing the CPU board to be connected to a variety of interchangeable add-on modules. Hence, we kept Arduino as a base of our project. Our model of the shoe contains two proximity sensors(one on the front and one on the outer side), one micro controller i.e. the Arduino board and 3 vibrational motors on each shoe. The micro controller is programmed as per the requirement which controls all the components of the shoe which are connected to the board.

When the blind person wears the shoe and encounters an obstacle the proximity sensors on his shoes will sense the obstacle and sends a signal to the micro controller which in turn sends the signal to the vibrational motor, placed under the sole, as programmed. Based on the vibration of the vibrational motor, the person will know the position of the obstacle.  This way it will help the blind person navigate through the obstacles and also since the board is programmed to be connected to GPS of the phone, it will also help the person to move to his destination. So a total of 4 sensors, two micro controllers and a few vibrational motors all on a pair of shoes will help a blind person navigate which we call BLINAV.

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