3. 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
4. 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
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
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 thetime 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
Low Frequency
(125kHz)
Appx. Read
Range
<5cm
Data Speed
Low
Cost of
Tags
High
10 cm – 1m
Ultra High
Frequency (433,
868-928 Mhz)
3m -7m
Microwave (2.45
& 5.8 Ghz)
10m -15m
•
Animal Identification
•
(passive)
High Frequency
(13.56 Mhz)
Application
Access Control
(passive)
Mediu
m to
Low
•
Smart Cards
•
Payment (paywave)
Moderate to
High
Low
•
Logistics and Supply
Chain
•
(passive)
Low to
Moderate
Baggage Tracking
•
Electronic toll collection
(Autotoll)
•
Container Tracking
High
High
(passive)
20m – 40m
(active)
8. Current Applications
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
9. Credit Cards with RFID
(Paywave function)
Applications
Octopus (Smart Card)
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
