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
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
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
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
•Derive their power
from the field generated
by the reader
•without having an
active transmitter to
transfer the information
stored
7. Applications
Frequency of RFID tags in different applications
Frequency
Low Frequency
(125kHz)
High Frequency
(13.56 Mhz)
Ultra High
Frequency (433,
868-928 Mhz)
Appx. Read
Range
<5cm
(passive)
10 cm – 1m
(passive)
3m -7m
(passive)
Microwave (2.45 & 10m -15m
5.8 Ghz)
(passive)
20m – 40m
(active)
Data Speed
Low
Low to
Moderate
Moderate to
High
High
Cost of
Tags
High
Mediu
m to
Low
Low
High
Application
•
Animal Identification
•
•
Access Control
Smart Cards
•
Payment (paywave)
•
Logistics and Supply
Chain
•
•
Baggage Tracking
Electronic toll collection
(Autotoll)
•
Container Tracking
8. Current Applications
Competitive
Technologies
Other keyless entry
technologies
None
Current
Penetration
High
Typical Tag Type
Low
Active
Access Control
Doorway entry
Asset Tracking
Locating tractors
within a freight yard
Asset Tagging
Tracking corporate
computing systems
Bar Code
Low
Passive
Authentication
Luxury goods
counterfeit
prevention
Positive bag
matching
Holograms
Low
Passive
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
Electronic toll
collection
Bar Code
Minimal
Passive
Bar Code, License plate,
reader systems
Medium
Active, Passive
Automotive ignition
systems
Other theft prevention
technologies
High
Passive
Baggage Tracking
Vehicle Identification
Vehicle Immobilizers
Passive
9. Credit Cards with RFID
(Paywave function)
Applications
Octopus (Smart Card)
11. Online Survey
Target: SME
Information: Opinion on RFID and its applications
Site:
http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZu
yuWtsk4
12. Survey Result
Benefits of using RFID in different industries
Manufacturing
Retailing
4
Transportation
Warehousing
4
4
4
3
3
2
2
2
1
1
1
1
0
1
0
0
Enhanced customer
satisfaction
0
Improved efficiency
Increased inventory
turnover rate
0
0
Reduced manpower
Reduced total cost
15. Conclusion
Positive
technology and can read
RFID is a contactless reading
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
