This document describes an RFID and IR based attendance system project. It includes the aim, block diagram, circuit diagram of RFID, working of the circuit, applications of RFID, and results and conclusions from developing and testing the system. An RFID reader module controlled by a microcontroller reads RFID tags when an IR sensor first detects a person's presence. The system allows for automated attendance tracking to reduce paper records and store data longer term. Future scopes involve enhancing the range and data transfer capabilities.

1. RFID AND IR BASED
ATTENDANCE SYSTEM

2. Aim and objectives of Project.
Block diagram.
Circuit diagram of RFID.
Working of Circuit
Applications of RFID.
Result and Conclusion.
Future Scope
Acknowledgement
Overview of Presentation

3.  To understand the Microcontroller and its
application.
 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.

5.  Basic system components
(tags, readers & middle ware)
 Tags consists of a microchip
attached to an antenna and is
placed in the object to be
located. Various types of
tags…passive, active
 Reader communicates with the
tags through radio waves. Staff
work stations, handheld
readers, self-charging
stations, long range exit reader
systems
 Middleware converts the data
captured by the reader into a
format that is perceivable by
the application software
6/11/2013RapidRadio Solutions Pvt. Ltd. 5
Tag

6.  The RFID Reader Module is controlled with a
single TTL-level active-low /ENABLE pin. When
the /ENABLE pin is pulled LOW, the module will
enter its active state and enable the antenna to
interrogate for tags.
 A visual indication of the state of the RFID
Reader Module is given with the on-board LED.
 When the module is successfully powered-up
and is in an idle state, the LED will be GREEN.
 When the module is in an active state and the
antenna is transmitting, the LED will be RED.
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7. Band Regulations Range Data speed Remarks
120–150 kHz
(LF)
Unregulated 10 cm Low
Animal
identification,
factory data
collection
13.56 MHz
(HF)
ISM band worldwide 1 m
Low to
moderate
Smart cards
(MIFARE,
ISO/IEC
14443)
433 MHz
(UHF)
Short Range Devices 1–100 m Moderate
Defence
applications,
with active
tags
865-868 MHz
(Europe)
902-928 MHz
(North America)
UHF
ISM band 1–2 m
Moderate
to high
EAN, various
standards
2450-5800 MHz
(microwave)
ISM band 1–2 m High
802.11
WLAN,
Bluetooth
standards
3.1–10 GHz
(microwave)
Ultra wide band 200 M High
requires
semi-active
or active tags

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Infrared radiation is the portion of
electromagnetic spectrum having
wavelengths longer than visible light
wavelengths, but smaller than
microwaves, i.e., the region roughly
from 0.75µm to 1000 µm is the
infrared region. Infrared waves are
invisible to human eyes. The
wavelength region of 0.75µm to 3 µm
is called near infrared, the region
from 3 µm to 6 µm is called mid
infrared and the region higher than 6
µm is called far infrared.

9. Light Comparison
Name Wavelength Frequency (Hz) Photon Energy (eV)
Gamma ray less than 0.01 nm more than 10 EHz 124 keV – 300+ GeV
X-Ray 0.01 nm to 10 nm 30 EHz – 30 PHz 124 eV to 124 keV
Ultraviolet 10 nm – 380 nm 30 PHz – 790 THz 3.3 eV to 124 eV
Visible 380 nm – 700 nm 790 THz – 430 THz 1.7 eV – 3.3 eV
Infrared 700 nm – 1 mm 430 THz – 300 GHz 1.24 meV – 1.7 eV
Microwave 1 mm – 1 meter 300 GHz – 300 MHz 1.24 µeV – 1.24 meV
Radio 1 mm – 100,000 km 300 GHz – 3 Hz 12.4 feV – 1.24 meV

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PROJECT FLOW:
In the beginning, Power supply is given to the circuit to
active all the devices. RFID and IR pair is interface to the
microcontroller and LCD is interface to show the card
number.
IR detects the pulse when human enters the swapping
area and this information is shown on LCD When RFID tag
is swap on the reader, it detects the tag
number, simultaneously.
When a student enter the IR pair detect person’s count
and the IR signal will be high that signal will send to
microcontroller after the IR signal become high then
only RFID tag can swap .
If IR pair does not detect a person then RFID Tag will
not read

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Proxy attendance can be caught.
Hard copy paper work of attendance sheets
is reduced.
Data can be store long time compare to
attendance sheets

12.  The RFID and IR based attendance system
using microcontroller NXP 89V51” is
successfully completed, designed, simulated,
build and tested.
 We have successfully completed, designed,
simulated, build and tested.

13.  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 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 be
recorded using RTC (real time clock) and can be stored in the database.
 This attendance system’s data base can be linked with college website and
can be shared and monitored by the student’s parents.