Rfid Predictable Door Lock System

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AUTUMN 2010-2011 PROJECT REPORT ON
RFID PREDICTABLE SYSTEM DESIGN FOR DOOR LOCK
Under the guidance of
Asst.Prof Santos kumar Das

Submitted by
S Visweswara rao
Regd no. 209EC2137

---------------------------------------------------------------------------- Department of Electronics and Communication Engineering,
National Institute of Technology,
Rourkela-769008

CONTENTS
Page. No

Abstract
1. Introduction 3
2. Block diagram 4
3. Classification of the system 4
4. RFID read/write module
4.1 Tags 5
4.2 Reader and antenna 6
4.3 Hardware module 7
5. Working principle 8
6. Results 9
7. Conclusion 10.
8. Future work 10
9. References 10

ABSTRACT
This project is to design an door lock system based on ARM micro controller(lpc2103) and RFID reader. it describes the hardware and software design. The hardware includes the Rfid reader kit , ARM7 training board ,relay circuits ,buzzer and power supply. Where as the software contains the main controlling program of the external circuits.

The accessing of door system is mainly controlled from the rfid system. The signal read from the
tag is send to the controller through the reader, the control checks the tag information and acts according to the program .

1. INTRODUCTION
Tags are the heart of an RFID system, because they store the information that describes the object being tracked. Specific object information is stored in the memory of tags and is accessed via the radio signal of RFID readers. Generally in olden days, to provide security, identity cards, magnetic cards, punch cards were used but they could not provide effective security. In case of identity cards and magnetic cards, one can access other’s card. Because they can identify the person with the photo. Hence others can misuse them. Where as in case of punch cards, since punch card is a piece of stiff paper, that contains digital information represented by the presence or absence of holes in predefined positions. So, others can make that card easily. With the advancement of technology, we can avoid these drawbacks by using smartcards (RFID) to provide high security. Factors leading to increase in use of RFID tags

a) Miniaturization of RFID tags
b) Decreased cost of equipment and tags
c) Increased performance
d) Stable international standards

2. Block Diagram

3. THIS SYSTEM IS CLASSIFIED INTO THREE SECTIONS

1. RFID MODULE
RFID read/write module has an integrated antenna and a reader, which is designed to work on the standard carrier frequency of 13.56mhz. 2. CONTROLLER MODULE
The core of system control used Philip’s LPC2103. The main control part of RFID reader circuit consist of microcontrollers, reset circuit, RS-232 communication interface circuit, power circuit and auxiliary circuit. 3. APPLICATION MODULE

This project is for door access control, here we...
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