This document discusses RFID (radio frequency identification) technology. It describes the components of an RFID system including RFID tags, readers, and antennas. It explains the different types of RFID tags - passive, semi-passive, and active - and their typical read ranges. Applications of RFID technology discussed include access control, asset tracking, supply chain management, toll collection, and more. The document also summarizes the results of an online survey on perceptions of RFID and its benefits in different industries. It concludes that RFID provides contactless reading and holds more data than barcodes but costs remain relatively high compared to barcodes.
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5. 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
6. 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
7. 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
8. TYPES OF RFID TAGS
Active Tags Semi-passive Tags Passive Tags
1. Use a battery 1. 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.
1. Derive their power from the
field generated by the reader
2. Communicate over distances
of several meters
2. They are different from active
tags in that they only transmit
data at the time a response is
received
2. Without having an active
transmitter to transfer the
information stored
9. 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
10. 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
13. ONLINE SURVEY
• background: WHY? TARGET AUDIENCE?
• Target: SME
• Information: Opinion on RFID and its applications
• Survey link:
• http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuyuWtsk4
NO of response
16. 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
