3. RFID
• RFID = Radio Frequency Identification
• Electronic labeling and wireless
identification of objects using radio
frequency
• Tag carries with its information
• a serial number
• Model number
• Color or any other imaginable data
• When these tags pass through a field
generated by a compatible reader,
they transmit this information back to
the reader, thereby identifying the
object
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4. RFID COMPONENTS
• A basic RFID system consists of these
components:
• A programmable RFID tag/inlay for storing
item data;
• Consisting of an RFID chip for data storage
• an antenna to facilitate communication
with the RFID chip
• A reader/antenna system to interrogate
the RFID inlay
• Application software and a host computer
system
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5. RFID TAG
• The RFID tag consists of an integrated
circuit (IC) embedded in a thin film
medium.
• Information stored in the memory of the
RFID chip is transmitted by the antenna
circuit embedded in the RFID inlay via radio
frequencies, to an RFID reader
• 3 types
• Passive
• Semi-passive
• Active
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6. TYPES OF RFID TAGS
Active Tags
• Use a battery
• communicate over
distances of several meters
Semi-passive Tags
• Contain built-in batteries to
power the chip’s circuitry,
resist interference and
circumvent a lack of power
from the reader signal due
to long distance.
• They are different from
active tags in that they only
transmit data at the time a
response is received
Passive Tags
• Derive their power from the
field generated by the
reader
• without having an active
transmitter to transfer the
information stored
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7. APPLICATIONS
Frequency Appx. Read
Range
Data Speed Cost of
Tags
Application
Low Frequency
(125kHz)
<5cm
(passive)
Low High • Animal Identification
• Access Control
High Frequency
(13.56 Mhz)
10 cm – 1m
(passive)
Low to
Moderate
Mediu
m to
Low
• Smart Cards
• Payment (paywave)
Ultra High
Frequency (433,
868-928 Mhz)
3m -7m
(passive)
Moderate to
High
Low • Logistics and Supply
Chain
• Baggage Tracking
Microwave (2.45 &
5.8 Ghz)
10m -15m
(passive)
20m – 40m
(active)
High High • Electronic toll collection
(Autotoll)
• Container Tracking
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11. ONLINE SURVEY
• Target: SME
• Information: Opinion on RFID and its applications
• Site:
• http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuy
uWtsk4
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12. SURVEY RESULT
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6%
23%
24%
29%
6%
12%
Types of the companies answersing the
questionnaire
Educati
on
Manufa
cturing
13. FURTHER DEVELOPMENT
• In medical uses and library
management
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15. CONCLUSION
• Positive
• RFID is a contactless reading technology and can read
through other materials
• Hold more data than barcode does
• RFID tags data can be changed or added
• More effective, bring lots of convenience to us
• Negative
• Cost is relatively remain high (compare to barcode)
• RFID signals may have problems with some materials
• RFID standards are still being developed
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