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Voice based electronic guidance system for visually impaired (Blind) people


 Blind people cannot detect what are the obstacles in front of them. Because of this, there is a chance to misshapenness such as automobiles collisions, obstacles, and accident that leads to great loss of human lives and can have disastrous results. To  avoid this, it  is better to have  a another  person  with  them to guide about  the  obstacles. But this is not possible in all cases, so blind people faces lot of problems while moving on a road, at home or at offices. In this fast moving world, no one spares time to help other people like blind people or don’t even think about them. But for these visually impaired people, there is always need an assistant to them while moving on roads or any other places.

                The solution for the above mentioned problems for blind people is to have a guiding assistant while moving on roads or any other places. It is also mentioned that a human guiding assistance is not always possible in this busy world. The alternative solution for the above specified problem is to have an electronic guidance system and it should be voice enabled. This electronic guidance system is generally placed on a walking stick, whenever it detects any obstacle comes near to the blind people who carries this stick the obstacle sensor (ultrasonic) will detect and intimate it to them with a predefine voice. Working principle of this electronic guidance system is simple, firstly the ultrasonic sensor is used to detect obstacles and the ADC will convert the analog variations into digital. This digital data is given the 8-bit microcontroller for processing. A voice based chip is connected to the microcontroller and based on the obstacle sensor data the microcontroller will send commands to voice based chip which in turn pronounce the commands via a speaker connected to it. In this way, the electronic guidance system will help the blind people and protect them from obstacle in front of them.

The technology is used in this project is mainly ultrasonic sensor is used to detect obstacle in front of it and APR9600 voice based chip  which is used to pronounce some predefined voice commands through a simple speaker. The 89S52 microcontroller or any other suitable microcontroller will provide interface between the ultrasonic sensor and the voice enabled chip.

Block Diagram:

Block diagram for Voice based electronic guidance system for visually impaired (Blind) people

3 comments :

  1. hi,can you provide me the circuit diagram of this project?

    ReplyDelete
  2. hi,can i have the document and the circuit diagram of this project, please

    ReplyDelete

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3 comments :

IcE_FiRe said...

hi,can you provide me the circuit diagram of this project?

Pooja Karajgar said...

plsss provide ckt diagram of this

juxtine mlimbila said...

hi,can i have the document and the circuit diagram of this project, please

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