This document discusses radio frequency identification (RFID) technology. It describes the basic components of an RFID system including RFID tags, readers, and antennas. It outlines the three main types of RFID tags - passive, semi-passive, and active - and provides examples of common RFID applications in areas like access control, asset tracking, and transportation. The document also presents results from an online survey on the benefits of RFID for different industries and discusses future development opportunities for this technology.

1. 3D Printing in Food
15224147 Ip Ka Kei
22 February 2016

2. Introduction
of RFID
Applications
Survey
Results
Future
Development
and
opportunities
Conclusion

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
meter
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

7. Applications
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

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

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

10. Applications
Autotoll (Electronic toll collection)
Access Control

11. Online Survey
 Target: SME
 Information: Opinion on RFID and its applications
 Site:
 http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuyuWtsk4

12. Survey Result
Enhanced customer
satisfaction Improved efficiency
Increased inventory turnover
rate Reduced manpower
Reduced total cost
0
2
0
2
1
0
2
1
3
0
1
1
0
1
0
3
4
4
4
4
Benefits of using RFID in differentindustries
Manufacturing Retailing Transportation Warehousing

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