RFID technology uses radio waves to electronically identify objects. It consists of tags that contain information transmitted to a reader, and has applications in access control, asset tracking, supply chain management, and more. A survey found that most companies interested in RFID were in education, manufacturing, retailing, and warehousing. Further development of RFID may include medical and library uses. While RFID provides benefits over barcodes like contactless reading, it also faces challenges from higher costs and developing standards.

1. RFID TECHNOLOGY
WONG YIU TING
12200727
17 October 2012

2. Future
Introduction Survey development
Application Conclusion
of RFID results and
opportunities

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;
 Consistingof 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 Semi-passive Tags Passive Tags
• Use a battery • Contain built-in • Derive their power
• communicate over batteries to power from the field
distances of several the chip’s generated by the
meters circuitry, resist reader
interference and • without having an
circumvent a lack of active transmitter to
power from the transfer the
reader signal due to information stored
long distance.
• They are different
from active tags in
that they only
transmit data at the
time a response is
received

7. APPLICATIONS
Frequency Appx. Read Data Speed Cost of Tags Application
Range
Low <5cm Low high -Animal
Frequency (passive) -Identification
(125kHz) Access Control
High 10 cm – 1m Low to Medium to Low -Smart Cards
Frequency (passive) Moderate -Payment
(13.56 Mhz) (paywave)
Ultra High 3m -7m Moderate to Low -Logistics and
Frequency (passive) High Supply Chain
(433, 868-928 -Baggage
Mhz) Tracking
Microwave 10m -15m High High -Electronic toll
(2.45 & 5.8 (passive) collection
Ghz) 20m – 40m (Autotoll)
(active) -Container
Tracking

8. CURRENT APPLICATIONS
Application Representative Competitive Current Penetration Typical Tag Type
Segment Applications Technologies
Access Control Doorway entry Other keyless entry High Passive
technologies
Asset Tracking Locating tractors None Low Active
within a freight yard
Asset Tagging Tracking corporate Bar Code Low Passive
computing systems
Authentication Luxury goods Holograms Low Passive
counterfeit prevention
Baggage Tracking Positive bag matching Bar Code, Optical Low Passive
Character
Recognition
POS Applications SpeedPass Credit Cards, Smart Medium Passive
Cards, Wireless
Phones
SCM (Container Tracking containers in GPS-based Systems Low Active
Level) shipping terminals
SCM (Pallet Level) Tracking palletized Bar Code Minimal Active, Passive
shipments
SCM (Item Level) Identifying individual Bar Code Minimal Passive
items
Vehicle Identification Electronic toll Bar Code, License Medium Active, Passive
collection plate, reader systems
Vehicle Immobilizers Automotive ignition Other theft prevention High Passive
systems technologies

9. Credit Cards with RFID
(Paywave function)
APPLICATIONS
Octopus (Smart Card)

10. Autotoll (Electronic toll collection)
APPLICATIONS
Access Control

11. ONLINE SURVEY
 Target: SME
 Information: Opinion on RFID and its
applications
 Site:
 http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPR
ZuyuWtsk4

12. SURVEY RESULT
types of companies answering the questionnaire
12% 6%
6%
23%
Education
Manufacturing
Retailing
Warehousing
Transportation
Others
29%
24%

13. FURTHER DEVELOPMENT
 In medical uses and library management

14. VIDEO

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