User:Viralplantation/sandbox

http://viralplantation.blogspot.in/--Viralplantation (talk) 05:07, 27 September 2013 (UTC) hy i m viral ptel to provide to you project.... mini project ... our project is rfid based device control and authentication using pic microcontroller .......

REPORT IS A Seminar Report on “RFID BASED DEVICE CONTROL AND AUTHIRICATION USING PIC - MICROCONTROLLER” Submitted by Patel viral(100900111010) Patel jigar(100900111007) Gandhi Harshil(100900111034)

EC – 151005 EMIL Bachelor of Engineering (Electronics & Communication) In the Field of “Electronics & Communication Engineering” Tatva Institute Of Technological Studies,Modasa Department of Electronics & Communication Engineering

INDEX Acknowledgement……………………………………………………………………… 04 LIST OF FIGURE…………...………………………………………………………….05 CHEPTER:1 INTRODUCTION…………………………………………………………………….….06 1.1 Block diagram…………………….…………………………………………….……07 CHAPTER:2 Power Supply………………………………………………..…………………08 2.1 PIC Microcontroller...............................................................................................09 2.2 Relay Driver……………………………..……………………………….10 2.3 RFID Tags………………………………………………….…………...11 2.4 RFID Reader.......................................................................................................................12 2.5 Relay ……………………………………………………………………………..…13 2.6 LCD Display…………………………………………………………………………..14

CHAPTER :-3 EXPECTED OUTCOME………………………………………………………………15

ACKNOWLEDGEMENT

I express my cavernous sense of obligation and gratitude to my guide PROF. Ketan B. Sheth sir for his genuine guidance and constant encouragement throughout this project work. I am highly obliged as my honourable guide have devoted his valuable time and shared his expertise knowledge. I extend my sincere thanks to HOD, Department of Electronics & Communication Engineering, TATVA INSTITUTE OF TECHNOLOGICAL STUDIES,MODASA for providing me such an opportunity to do my project work. I also wish to express my heartfelt appreciation to my friends, colleagues and many who have rendered their support for the successful completion of the project, both explicitly and implicitl.

Name of student (Roll no-) PATELJIGAR( 100900111007) PATEL VIRAL(100900111010) GANDHI HARSHIL(100900111034) DATE:- Place:TATVA INSTITUTE OF TECHNOLOGICAL STUDIES,MODASA

�

ABSTRACT

The main objective of this project is to provide security in an organization by allowing only the authorized personnel to access the secure area. The security of any organization is a priority for the authorities. The concern is for the physical property and also for the intellectual property. For this reason only the authorized person with a valid RFID tag is allowed into the secured premises. This tag contains an integrated circuit that is used for storing and processing information and modulating, demodulating the radio frequency signal that is being transmitted. Thus, once the person shows the RFID tag to the card reader it scans the data present in the tag and compares it with the data present in the system. When the data matches with that in the microcontroller, the load will be turned ON which is driven by a relay and it displays a message “AUTHORIZED” else states “UNAUTHORIZED” and doesn’t allow access. This project can be further enhanced by interfacing it with GSM technology. Any attempt for unauthorized access can be intimated to the security personnel through an SMS.

� LIST OF FIGURES

1.1	Block Diagram …….………………………………..……07 2.0 2.1 2.2	Power Supply………………………………………………….……08 PIC Microcontroller……………………………………………… .09 Relay Driver………………………..……………………………….10 2.3	 RFID Tags…………………..……………………………………..11 2.4	RFID Reader………...………………………………………..…….12 2.5 2.6  	Relay………………………………………………………………..13 LCD Display………………………………………………………..14

CHAPTER 1 INTRODUCTION The main objective of this project is to provide security in an organization by allowing only the authorized personnel to access the secure area. The security of any organization is a priority for the authorities. The concern is for the physical property and also for the intellectual property. For this reason only the authorized person with a valid RFID tag is allowed into the secured premises. This tag contains an integrated circuit that is used for storing and processing information and modulating, demodulating the radio frequency signal that is being transmitted. Thus, once the person shows the RFID tag to the card reader it scans the data present in the tag and compares it with the data present in the system. When the data matches with that in the microcontroller, the load will be turned ON which is driven by a relay and it displays a message “AUTHORIZED” else states “UNAUTHORIZED” and doesn’t allow access. This project can be further enhanced by interfacing it with GSM technology. Any attempt for unauthorized access can be intimated to the security personnel through an SMS.

� 1.1 BLOCK DIAGRAM

CHAPTER 2 POWER SUPPLY Here we used +12V and +5V dc power supply. The main function of this block is to provide the required amount of voltage to essential circuits. +12 voltages are given. +12V is given to relay driver. To get the +5V dc power supply we have used here IC 7805, which provides the +5V dc regulated power supply.

�

2.1 PIC - MICROCONTROLLER

PIC is a family of modified Harvard architecture microcontrollers made by Microchip Technology, derived from the PIC1650 originally developed by General Instrument's microelectronics Division. The name PIC initially referred to "Peripheral Interface Controller". PICs are popular with both industrial developers and hobbyists alike due to their low cost, wide availability, large user base, extensive collection of application notes, availability of low cost or free development tools, and serial programming (and re-programming with flash memory) capability. They are also commonly used in educational programming as they often come with the easy to use 'pic legislator' software.

2.2 RELAY DRIVER One of the serious problems in relay operated circuits is the relay clicking or chattering during the on/off of the relay driver transistor. This problem is severe if the input circuit is a light/temperature sensor. During the transition of light/temperature levels, the relay clicks which may cause sparking of contacts. By using a simple tip, this problem can be avoided.

� 2.3 RFID TAGS A radio-frequency identification system uses tags, or labels attached to the objects to be identified. Two-way radio transmitter-receivers called interrogators or readers send a signal to the tag and read its response. RFID tags can be either passive, active or battery assisted passive. An active tag has an on-board battery and periodically transmits its ID signal. A battery assisted passive (BAP) has a small battery on board and is activated when in the presence of a RFID reader. A passive tag is cheaper and smaller because it has no battery. Tags may either be read-only, having a factory-assigned serial number that is used as a key into a database, or may be read/write, where object-specific data can be written into the tag by the system user. Field programmable tags may be write-once, read-multiple; "blank" tags may be written with an electronic product code by the user.

2.4 RFID READER

The RFID Transceiver represents the core of the RFID reader. Besides the interface to the reader’s antenna, a parallel or serial communication can be used between the Processor and the Transceiver unit. Various programming options make the TI's RFID Transceiver suitable for a wide range of proximity (communication distance to Transceiver - Tag: <10cm) and vicinity (communication distance to Transceiver - Tag: >50cm) RFID applications. ISO15693, IOS14443-A bit rates ranging from 106kbps to 848kbps, ISO18000-3 and Tag-it RFID communication protocols are supported. Included with the on chip data coding/encoding is the automatic generation of SOF (Start of Frame), EOF (End of Frame), CRC and/or parity bits. The transceiver unit supports data communication levels to the sMCU/I/O Interface ranging from 1.8V to 5.5V while also providing a data synchronous clock.

2.5 RELAY A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits, repeating the signal coming in from one circuit and re-transmitting it to another. Relays were used extensively in telephone exchanges and early computers to perform logical operations. A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called "protective relays".

2.6 LCD DISPLAY

A liquid-crystal display (LCD) is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals. Liquid crystals do not emit light directly. LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images which can be displayed or hidden, such as preset words, digits, and 7-segment displays as in a digital clock. They use the same basic technology, except that arbitrary images are made up of a large number of small pixels, while other displays have larger elements.

CHAPTER :-3 EXPECTED OUTPUT

The main aim of this project is develop an identified a wanted Pearson which will cloud that place. RFID system is used to authorize the tag holder to enter a secure area. The RFID reader reads the data present on the RFID tag. This data is compared in microcontroller to match the built in data for status display and authorizing the entry which is indicated with a lamp coupled with an LCD display. When we have take a wanted Tags to RFID Sensor then the Output as Load will be Available as bulb will flow light. Whenever we have take unwanted tags to RFID Sensor than the Output as Load will be not available as Bulb could not flow light.