RFID based Attendance System - PowerPoint PPT Presentation

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RFID based Attendance System

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This ppt explains how to record the attendance of students using RFID tags, student is provided with his/her authorized tag to swipe over the reader to record their attendance. Edgefxkits.com has a wide range of electronic projects ideas that are primarily helpful for ECE, EEE and EIE students and the ideas can be applied for real life purposes as well. Visit our page to get more ideas on popular electronic projects developed by professionals. Edgefx provides free verified electronic projects kits around the world with abstracts, circuit diagrams, and free electronic software. We provide guidance manual for Do It Yourself Kits (DIY) with the modules at best price along with free shipping. – PowerPoint PPT presentation

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Title: RFID based Attendance System


1
RFID Based Attendance System
2
RFID Based Attendance System
  • Introduction
  • The main functionality of this project is to
    verify the identity / attendance of the user who
    needs to access it through RFID.
  • For this purpose the authorized person is given
    an RFID card.
  • This card contains an integrated circuit that is
    used for storing, processing information through
    modulating and demodulating of the radio
    frequency signal that is being transmitted.
  • Thus, the data stored in this card is referred as
    the identification/attendance of the person.


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RFID Based Attendance System
  • Once, the person places the card in front of the
    RFID card reader, it reads the data and verifies
    it with that data present in the system and if it
    matches then it displays a message as valid entry
    and allows accessing the device or else displays
    invalid and denies the access/attendance.


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RFID Based Attendance System
  • RFID Based Attendance System Principle
  • RFID based attendance system consists of RFID
    Reader, RFID Tag, LCD display and microcontroller
    unit.
  • RFID can be interfaced to microcontroller through
    USART. Data is transferred from RFID cards to
    reader and from there to microcontroller.
  • RFID tags are of two types
  • Passive Tags.
  • 2) Active Tags.


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RFID Based Attendance System
  • Passive tags contain 13 digit number tag inbuilt
    in it, where as active tag is read/write tag i.e.
    one can read from the tag and write to the tag.
  • RFID projects uses passive tag. In real time, one
    can issue active tags to the students, with their
    roll numbers as their tags.
  • RFID reader contains a copper winding in it. This
    winding acts as an antenna.
  • When the tag is placed near the reader, due to
    the induced mutual inductance energy, data is
    transferred to reader. Reader then transfers data
    to the microntroller.
  • Microcontroller checks for the data continuously,
    if any data is received, microcontroller compares
    the data in data base. If the tag is
    authenticated, microcontroller takes the
    attendance.


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RFID Based Attendance System
Block Diagram

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RFID Based Attendance System
  • Hardware Requirements
  • 8051 series Microcontroller
  • RFID tags and RFID Reader
  • LCD
  • Resistors
  • Capacitors
  • Diodes
  • Transformer
  • Voltage Regulator
  • Crystal
  • switches


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RFID Based Attendance System
  • Software Requirements
  • Keil compiler
  • Language Embedded C or Assembly


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RFID Based Attendance System
Circuit Diagram

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RFID Based Attendance System
  • How to Operate RFID Based Attendance System
    Circuit
  • After making all the above connections, Switch on
    the circuit.
  • On LCD it is displayed PLEASE SWIPE THE CARD.
  • Place the RFID based attendance tag near the
    reader.
  • Reader then reads the data in the tag and
    transmits to the controller.
  • Microcontroller compares the tag with the
    database. If the tag is matched LCD displays
    authenticated and takes your attendance.
  • Now place another card which is not present in
    the database and check for authentication.


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RFID Based Attendance System
  • Now LCD displays Un authorized and it will
    never take the attendance.
  • In this way, we can use implement this circuit.


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RFID Based Attendance System
  • Liquid crystal display-lcd
  • Most common LCDs connected to the
    microcontrollers are 16x2 and 20x2 displays.
  • This means 16 characters per line by 2 lines and
    20 characters per line by 2 lines, respectively.
  • The standard is referred to as HD44780U, which
    refers to the controller chip which receives data
    from an external source (and communicates
    directly with the LCD).


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RFID Based Attendance System
  • Applications
  • RFID based attendance system can be used in
    educational institutions, industries, anywhere.
  • RFID is emerging technology and is used in
    applications where authentication is needed.


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RFID Based Attendance System
  • Advantages
  • Proxy attendance can be caught.
  • Hard copy paper work of attendance sheets is
    reduced.
  • Data can be store long time compare to attendance
    sheets.
  • This system is fully automated and it does not
    require any human interaction except setting the
    initial time setting.
  • LCD and PC interface both are provided with RFID
    based attendance system. This gives benefit of
    viewing attendance on the spot on LCD or remotely
    from computer.


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RFID Based Attendance System
  • Limitations
  • RFID attendance system is secured, but there is a
    chance of misusing the cards. One person can give
    another persons attendance if he/she had RFID
    card.
  • If the card was swiped for more than once, there
    is a chance of giving attendance for next days
    also if code is not written properly.


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RFID Based Attendance System
  • Future Scope
  • Range of the RFID reader can be increased, so the
    reader can detect the tag from far distance.
  • RF TRANSRECEIVER module can be used for long
    distance communication to transfer data.
  • The transferred data can be save and store in
    computer as a database using specific software.
  • Timely attendance can be monitored i.e. time in
    and time out can bar corded using RTC (real time
    clock) and can be stored in the database


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RFID Based Attendance System
  • This attendance systems data base can be linked
    with college website and can be shared and
    monitored by the students parents.
  • We can send this data through internet to the
    user. So that user can access it remotely via
    internet.
  • We can implement GSM technology


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Railway Track Security by GSM With User
Programmable Number Features

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