RFID BASED ATTENDENCE SYSTEM

RFID BASED TOLL COLLECTION SYSTEM

MADE BY:- SANCHIT GARG(1512823) VIDHU TANWAR(1512827)Contents

INTRODUCTIONBLOCK DIAGRAMCIRCUIT DIAGRAMCOMPONENTSWORKINGFLOW CHARTADVANTAGESAPPLICATIONFUTURE SCOPE

INTRODUCTIONThis project focuses on an electronic toll collection (ETC) system using Radio frequency identification. (RFID) technology. The RFID system uses tags, through which information embedded on the tags are read by RFID readers, The proposed system eliminates the need for motorists and toll authorities to manually perform ticket payments and toll fee collections, respectively. Thus it is a more efficient toll collection by reducing traffic and eliminating possible human errors.This system allows the vehicle drivers to pass the toll tax booths without stopping at the toll booths. The toll amount is deducted from the RFID card. This RFID card is rechargeable and account is stored on the records.Block DiagramPIC16F887BuzzerLCD DisplayRFID ReaderRFID TagsMotor driver KeypadIR Reciever IR LEDMotor(for gate)CIRCUIT DIAGRAM

COMPONENTS

PIC 16F887CRYSTAL OSCILLATORVOLTAGE REGULATORULN 2004DIODES,RESISTORS & CAPACITORSLAMPMAX232RFID READER AND TAGSLCD BUZZER

PIC 16F887 MICROCONTROLLERIt is the uc that we used in it.Here F stands for flash rom. It is a non-volatile memory.

Specifications - 1) OPERATING FREQ 0 - 20 Mhz2) I/O PORTS 5(A,B,C,D,E) 3) INPUT/OUTPUT PINS - 364) ADC - 145) ROM - 8K Bytes6) RAM - 368 Bytes7) TIMERS - 3(Timer 0, Timer 1, Timer 2)8) EEPROM - 256 Bytes

CRYSTAL OSCILLATOROscillator circuit is used to provide the necessary clock cycle that is required to processed the instruction.There are 2 types of oscillator that are mainly used1) RC Oscillator2) Crystal OscillatorWe used crystal oscillator because it provide high stability frequency.

VOLTAGE REGULATOR1)A voltage regulator is used to maintain a constant voltage level.2) In this we used 12V power supply.

ULN-2004ULN2004 is a 16pin IC.Its inside circuitory consists of transistor transistor pair i.e Darlington Pair.The Darlington pair is used to amplify the weak signals.

MAX232MAX232-It is reader module IC.Its 10th pin is connected to RX pin of pic16f887

RFID Reader and RFID tags

Radio-frequency identification(RFID) is atechnologyto electronically record the presence of an object using radio signals.To do this, it relies onRFID tags. These are small transponders(combined radio receiverandtransmitter) that will transmit identity information over a short distance, when asked. The other piece to make use of RFID tags is an RFID tag reader.

RFID Reader

RFID tagSpecification of RFID ReaderPower source Electric current FrequencyReads the card distance 5v