This document discusses RFID (Radio Frequency Identification) and its applications. It begins by defining RFID and its components, including RFID tags that can be passive, semi-passive, or active. It then discusses common applications of RFID in various frequency ranges for uses like access control, toll collection, supply chain/logistics tracking and more. The document also summarizes an online survey of businesses on their opinions of RFID and its future applications in areas like medical and libraries. It concludes that RFID provides benefits like contactless reading and updating of data but also faces challenges from costs and standardization.
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
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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Education
6%
Manufacturing
23%
Retailing
24%
Warehousing
29%
Transportation
6%
Others
12%
TYPES OF THE COMPANIES ANSWERSING
THE QUESTIONNAIRE
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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