RFID applications

1. RFID & Its Applications
Members:
Alice Wong(1532323)
Bob Yuen(1543242)
Cathy Chan(1524464)

2. FLOW OF PRESENTATION
Introductions Applications Video Survey Result Conclusion
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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
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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 Medium
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

8. Current Applications
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9. Applications
Credit Cards with RFID
(Paywave function)
Octopus (Smart Card)
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10. Applications
Autotoll (Electronic toll collection)
Access Control
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11. Online Survey
• Target: SME
• Information: Opinion on RFID and its applications
• Site:
• http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuyuWtsk4
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12. Survey Result
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6%
23%
24%
29%
6%
12%
Types of the companies answersing the
questionnaire
Education
Manufact
uring

13. Further Development
• In medical uses and library management
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14. Video
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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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