1.
PRESENTATION OUTLINE
A)Introduction to RFID
B) Working principle
C) GSM Module
D) Flow chart of class
attendance system
E) Advantage of technology
F)Why RFID
G) RFID V/S BAR CODE
H) Application field
I) Pros and Cons
J) Conclusion

2.
RFID STANDS FOR….
RADIO
FREQUENCY
IDENTIFICATION
GSM STANDS FOR ……
GLOBAL SYSTEM FOR MOBILE COMMUNICATION
“We need technology in every classroom and in every
student and teacher’s hand because it is the pen and
paper of our time,and it’s the lens through which we
experience much of this world” –David Warlick

3.
1. Introduction to RFID

4.
KEY COMPONENT TO BE USED FOR CLASS ATTENDANCE
A) An RFID Tag
B) An RFID Reader
C)GSM MODULE
D)Data bus
E)LCD(1.120 kp)
F)AVR microcontroller
G) An RFID Station/PC

5.
A) AN RFID TAG

6.
An RFID Tag are made of :-
1) Chip :- Hold information about physical object
2) Antenna :-Transmit signal at radio frequency
3) Package :-encase chips and antenna so that tag can be
attached to physical object
Tags are-
Active Tag Passive Tag
Power –Battery Power-No(get from reader
through mutual inductance)
Signal –stronger Signal –Weaker
Range-100 feet Range-few inches.
NOTE :- These cards are known as proximity card

7.
B)AN RFID READER
An RFID Reader is a device used to gather
data information from an rfid tag,which is
used to track individual objects.Radio waves
are used to transfer data to RFID reader from
an rfid tag
Transfer of energy from one circuit[READER] to another[CARD] by mean
of electromagnetic waves at Radio frequency through mutual inductance

8.
C) GSM
GSM is a 2nd generation[2-G]
cellular standard developed to cater
voice services and data delivery
using time division
multiplication access[TDMA]
GSM SERVICES
Tele services :-Includes mobile
phones and emergency calls etc.
data services :-Includes SMS(short
messge service),Fax,voice
mail,electronic-mail.
Supplementary service:-I/C&O/G
calls,call forwarding,call
holding,call waiting,conference etc.

9.
E) LCD(1.120KP)
a)liquid crystal display
b) cheap and easy way to display text
c) various configurations(1line *20characters,2line*16
chaaracters)
d) the display has two register
d.1) command register
d.2) data register
e) by RS you can select register
f) data line(db7-db0)used to transfer data and commands

10.
E) AVR MICROCONTROLLER
As a microprocessor is a heart of general purpose computer in the same
way the microcontroller is a heart of embedded system A
microcontroller is a single chip containing at least a cpu,non-volatile
memory(e.G.Rom,prom,eprom,eeprom,flash),volatile memory(s-ram,d-
ram),a timer and I/O controlling unit. Where flash memory is mainly
used for microcontroller.

11.
Introduction TO CAS
Attendance in colleges is
generally paper based which may
sometimes cause errors.Taking
attendance manually consumes
more time.So the proposed
attendance system uses RFID and
GSM technology to take
attendance.In this system,each
student is issued an RFID tag.The
controlling unit is in
institute.whenever the card is
placed near the reader,it will take
the attendance and increment the
student attendance variable.In
case if the student is absent for
any class day the gsm module is
used to make a call to their
parents to inform.

12.
FLOW CHART

13.
RFID BASED ATTENDANCE SYSTEM

14.
1.)Proxy attendance can be caught.
2.)Hardcopy paper work of attendandacesheet
is reduced
3.)Data can be stored long time compare to
attendance sheets.
ADVANTAGE
RFID V/S BAR CODE COMPARISON
RFID and BAR Codes are similar in that they are both data
collection technologies,meaning they automate the
process of collecting data.

15.
RFID BAR CODE
Line of sight Not required (In most cases) Required
Read Range Passive UHF RFID :
-upto 40 feet(fixed readers)
-upto 20 feet(handheld
readers)
Active RFID :
-upto 100’s feet or more
Several inches upto
several feets.
Read Rate 10’s,100’s,or 1000’s
simultaneously
Only one at a time
Identification Can uniquely identify each
item /asset tagged
Most barcodes only
identify the type of
item(UPC code)but not
uniquely
Read/Write Many RFID tags are
Read/Write
Read only
Technology RF(Radio frequency) Optical(LASER)
Interference Like TSA(Transportation security
administration),same RFID
frequencies don’t like metal
and liquids.They can
interference with same RF
frequencies
Obstructed barcodes
cannot be read(dirt
covering barcode,torn
barcode,etc).

16.
Application of RFID based attendace system
1)RFID baseed attendance system can be used in educational
institutions,bank offices,industries,anywhere.
2)RFID is emerging technology and is used where authentication
application is needed.
OTHER APPLICATIONS OF RFID TECHNOLOGY
1.)people track 2.)Document trackin
3.)Health care 4.)Manufacturing
5.)Department of road transportation and highways
6.)Center for railway information system
7.)Apparel tracking 8.)Laptop tracking
Automation Automation
Most “fixed” readers
don’t require human
involvement to collect
data(automated)
Most barcode scanners require a
human to operate(labor intensive)

17.
PROS AND CONS
PROS CONS
-RFID tags are very simple to
install/inject inside the body of
animal,thus helping to keep tract on
them.
-Expensiveness of technology than Bar
code
-The RFID tags can store data upto 2kb.
-The RFID technology can not be easily
replicated and therefore,it increases
the security of the product.
Collision :
-signals can ‘collide’when multiple
signals are read at once
-Those signals are either lost or read
with errors
-mobility -failure
-Unlimited scope -still evolving
-reduced human intervention

18.
CONCLUSION
+RFID Is helpful in tracking assets–human and machine
+Used in inventory control
+Scope limited by imagination of its implementation
FUTURE PROSPECTS
+ Can be extended to embedded system
Ex:-so the RFID chip can be embedded within the
laptop for tracking
+ Application software can be made web based