Security
is a prime concern in our day-to-day life. The rapid development of electronics provides secured environment to
the human.
More and more devices are coming every day to protect the people’s house or office. Present project RF
ID based security system is also one of them. You might be familiar with
RFID systems as seen in contact less payment systems, product tracking and
inventory control, etc. Basically, an RFID system consists of three components:
an antenna or coil, a transceiver (with decoder) and a transponder (RF tag)
electronically programmed with unique information.
The Main concept behind this
project"Radio Frequency
Identification (RFID) Based Access Control System"is to allow only authorized persons to access a
restricted area. TO allow access, the authorized person’s RF ID card has to be
shown in front of the RFID reader and then the access is allowed or denied to
the respective person/RFID card.The system is based on micro controller and
comprises an RFID module, an LCD module for displaying the status and a relay
for opening the door.
The authorized
persons are provided with unique tags, using which they can access the
restricted area. When an authorized person’s tag enters in the RF field
generated by the RFID reader, energy is transmitted to the tag and retrieves
data from the tag. Then the RFID reader communicates to the microcontroller for
further processing. Thus on identifying the authorized person relay energizes
to open the door for the person. Simultaneously, the LCD shows “access granted”
message and buzzer is on .If the person is unauthorized, then the LCD shows
“access denied” and the door doesn’t open.
Related Projects
The system is based on micro controller and comprises an RFID module, an LCD module for displaying the status and a relay for opening the door.arlington tx locksmith
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