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10/18/2012
Introduction of RFID
ApplicationsSurvey Results
Future Development
and Opportunities
Conclusion
10/18/2012
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
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
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
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
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
Application Segment Representative Applications Competitive Technologies Current Penetration Typical Tag Type
Access Control Doorway entry Other keyless entry technologies High Passive
Asset Tracking Locating tractors within a freight yard None Low Active
Asset Tagging Tracking corporate computing systems Bar Code Low Passive
Authentication Luxury goods counterfeit prevention Holograms Low Passive
Baggage Tracking Positive bag matching Bar Code, Optical Character Recognition Low Passive
POS Applications SpeedPass Credit Cards, Smart Cards, Wireless Phones Medium Passive
SCM (Container Level) Tracking containers in shipping
terminals
GPS-based Systems Low Active
SCM (Pallet Level) Tracking palletized shipments Bar Code Minimal Active, Passive
SCM (Item Level) Identifying individual items Bar Code Minimal Passive
Vehicle Identification Electronic toll collection Bar Code, License plate, reader systems Medium Active, Passive
Vehicle Immobilizers Automotive ignition systems Other theft prevention technologies High Passive
Credit Cards with RFID(Paywave function)
Octopus (Smart Card)
Autotoll (Electronic toll collection)
Access Control
Target: SME
Information: Opinion on RFID and its applications
Site:
› http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuyuWtsk4
In medical uses and library management
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