Assisting
Blind person using RFID Card and Readers
This Project comprises of a Hardware mechanical model which
is controlled by the electronic circuits to assist a blind person. I.e., This
mechanical model is attached with the walking stick of the blind person. The model will move automatically. This model
helps the blind person to reach the destination quickly. The model has a Master
Control unit through which it can identify the path. When the source and
destination is selected the unit will calculate the path using. The unit will
then tell the user to move in which direction. The movement of the user in
ensured using a RFID proximity cards and a reader. The reader will be placed on
the unit and on encountering of cards (Cards placed at each point) will tell
the user has to take right or left or straight through voice output. An APR 9600 voice storage and retrival IC is
used for this purpose.
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WALKING STICK -RFID PROJECTS BLIND NAVIGATION |
The unit will give alarm signal when
it finds a Obstacle. This project is divided into modules for better understanding
of the circuit.
The modules included in this project
are
Pic
Embedded Microcontroller PIC 16F877
Battery
for Power Supply
RFID
Card Reader with cards
APR
9600 Voice Recording and Playback IC
Software
Driver in Hitech ‘C’ Language.
Pic Embedded Microcontroller (PIC
16F877):
This
is the heart of the device which is responsible for sensing the obstacles and
producing voice Output.
RFID Card Reader with Cards
A RFID Card reader is fixed on the
unit. Cards will be placed on the path
at regular intervals. When the unit
encounters a card, it can sense the point at which the unit is present through
the unique code present in the card.
APR 9600 Voice Recording and Play Back IC
This IC is a Single Chip Voice
Recording and Playback IC. A Prerecorded
Voice is Stored into the IC. It can be
played again by the controller by sending a control signal to the IC.
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