Aim and objectives of Project.Block diagram.Circuit diagram of RFID.Working of CircuitApplications of RFID.Result and Conclusion.Future ScopeAcknowledgementOverview of Presentation
To understand the Microcontroller and itsapplication. To understand the working of RFID module. To understand the working of IR sensor. Build a Interfacing circuit with RFID and IR. Develop basic programming architectures.
Basic system components(tags, readers & middle ware) Tags consists of a microchipattached to an antenna and isplaced in the object to belocated. Various types oftags…passive, active Reader communicates with thetags through radio waves. Staffwork stations, handheldreaders, self-chargingstations, long range exit readersystems Middleware converts the datacaptured by the reader into aformat that is perceivable bythe application software6/11/2013RapidRadio Solutions Pvt. Ltd. 5Tag
The RFID Reader Module is controlled with asingle TTL-level active-low /ENABLE pin. Whenthe /ENABLE pin is pulled LOW, the module willenter its active state and enable the antenna tointerrogate for tags. A visual indication of the state of the RFIDReader Module is given with the on-board LED. When the module is successfully powered-upand is in an idle state, the LED will be GREEN. When the module is in an active state and theantenna is transmitting, the LED will be RED.Here comes your footer Page 6
Band Regulations Range Data speed Remarks120–150 kHz(LF)Unregulated 10 cm LowAnimalidentification,factory datacollection13.56 MHz(HF)ISM band worldwide 1 mLow tomoderateSmart cards(MIFARE,ISO/IEC14443)433 MHz(UHF)Short Range Devices 1–100 m ModerateDefenceapplications,with activetags865-868 MHz(Europe)902-928 MHz(North America)UHFISM band 1–2 mModerateto highEAN, variousstandards2450-5800 MHz(microwave)ISM band 1–2 m High802.11WLAN,Bluetoothstandards3.1–10 GHz(microwave)Ultra wide band 200 M Highrequiressemi-activeor active tags
Here comes your footer Page 8Infrared radiation is the portion ofelectromagnetic spectrum havingwavelengths longer than visible lightwavelengths, but smaller thanmicrowaves, i.e., the region roughlyfrom 0.75µm to 1000 µm is theinfrared region. Infrared waves areinvisible to human eyes. Thewavelength region of 0.75µm to 3 µmis called near infrared, the regionfrom 3 µm to 6 µm is called midinfrared and the region higher than 6µm is called far infrared.
Light ComparisonName Wavelength Frequency (Hz) Photon Energy (eV)Gamma ray less than 0.01 nm more than 10 EHz 124 keV – 300+ GeVX-Ray 0.01 nm to 10 nm 30 EHz – 30 PHz 124 eV to 124 keVUltraviolet 10 nm – 380 nm 30 PHz – 790 THz 3.3 eV to 124 eVVisible 380 nm – 700 nm 790 THz – 430 THz 1.7 eV – 3.3 eVInfrared 700 nm – 1 mm 430 THz – 300 GHz 1.24 meV – 1.7 eVMicrowave 1 mm – 1 meter 300 GHz – 300 MHz 1.24 µeV – 1.24 meVRadio 1 mm – 100,000 km 300 GHz – 3 Hz 12.4 feV – 1.24 meV
Here comes your footer Page 10PROJECT FLOW:In the beginning, Power supply is given to the circuit toactive all the devices. RFID and IR pair is interface to themicrocontroller and LCD is interface to show the cardnumber.IR detects the pulse when human enters the swappingarea and this information is shown on LCD When RFID tagis swap on the reader, it detects the tagnumber, simultaneously.When a student enter the IR pair detect person’s countand the IR signal will be high that signal will send tomicrocontroller after the IR signal become high thenonly RFID tag can swap .If IR pair does not detect a person then RFID Tag willnot read
Here comes your footer Page 11Here comes your footer Page 11Proxy attendance can be caught.Hard copy paper work of attendance sheetsis reduced.Data can be store long time compare toattendance sheets
The RFID and IR based attendance systemusing microcontroller NXP 89V51” issuccessfully completed, designed, simulated,build and tested. We have successfully completed, designed,simulated, build and tested.
The project can be developed using advanced microcontroller like ARM 7,ARM 9 etc. Range of the RFID reader can be increased, so the reader can detect the tagfrom far distance. RF TRANSRECEIVER module can be used for long distancecommunication to transfer data. The transferred data can be save and store in computer as a database usingspecific software. Timely attendance can be monitored i.e. time in and time out can berecorded using RTC (real time clock) and can be stored in the database. This attendance system’s data base can be linked with college website andcan be shared and monitored by the student’s parents.