RFID & its Applications The document discusses RFID (radio frequency identification) tags, components, and applications. It describes the basic parts of an RFID system including tags, readers, and host computers. It outlines different types of RFID tags and their operating frequencies and read ranges. Applications discussed include credit cards, transportation payment systems, access control, toll collection, and supply chain management. A survey of local businesses found most use was in retailing, manufacturing, and education. Further development of RFID was seen in medical and library uses.

1. RFID & its Applications
Members:
Alice Wong(1532323)
Bob Yuen (1543242)
Cathy Zhen (1554342)
GCIT1015

2. FLOW OF PRESENTATION
Introduction Applications Video
Survey
Results
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
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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

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 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
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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
Retailing

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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