N.M.ELECTRONICS

                 The objective of this project is to identify the consumers in ration store by using the RFID card instead of using the ration card.

This project is very used to provide the easy access in the ration store.  In this project RFID card is used as ration ID card.  In this project consumer information are maintained in the individual data base in PC. The consumers RFID card is used to access their database. So we can avoid the man made error.  So this project improves the security performance because we cannot make the duplicate RFID card.   

             This project is designed with

Ø  RFID tag

Ø  RFID reader

Ø  Microcontroller

Ø  RS 232 converter

Ø  Driver circuit

Ø  Alarm

Ø  PC

Ø  Key pad

RFID is the special type wireless card which has inbuilt the embedded chip along with loop antenna. The inbuilt embedded chip represents the 12 digit card number. 

            RFID reader is the circuit which generates 125KHZ magnetic signal. This magnetic signal is transmitted by the loop antenna connected along with this circuit which is used to read the RFID card number.

         In this project RFID card is used as ration card. So each consumer has the individual RFID card. RFID reader is interfaced with microcontroller. Here the microcontroller is the flash type reprogrammable microcontroller in which we already programmed with card number. The microcontroller is interfaced with PC through RS 232 converter. The RS232 is used to convert TTL logic to RS 232 logic.

            When the consumers show the RFID card in the reader, the reader will read the number and send to microcontroller. Then the consumer has to press the personal identification number through key pad.  The microcontroller received the card number and PIN number from the reader and key pad then compare the stored number. If the card and PIN number is valid the microcontroller transfers the card information to PC through RS 232. In PC the corresponding consumer database is opened. The database contains the book information for those consumers such as consumer name, occupation, address, ID number etc.

       If the RFID card is not valid for that particular consumer, the microcontroller will display the “Authentication Fail “on the LCD display and also activate the driver circuit for alarm.  So the alarm makes the sound for indicating the Authentication Fail. We can also add the new consumers in the data base.

1.      Low power consumption.

2.      Improve security performance in the library.

3.      We can add new student users.

4.       Student database maintained individually so we can avoid the man made error.

                 This project is very useful to the

1.      College libraries.

2.      School libraries.

3.      Corporation central libraries.