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