RFID technology uses radio waves to electronically identify objects. An RFID tag contains information that is transmitted to an RFID reader when within range of its radio waves. Common RFID components include tags/inlays containing chips and antennas, readers/antennas, and application software. Tags can be passive, semi-passive, or active depending on their power source. Common applications include access control, asset tracking, supply chain management, and electronic toll collection. A survey found that respondents thought RFID could be applied to inventory control, security, logistics, and library management. Further development is needed in medical and library uses. While RFID offers advantages over barcodes, costs remain relatively high and standards are still being developed
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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. 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 the chip’s generated by the
several meters circuitry, resist reader
interference and • without having an
circumvent a lack active transmitter
of power from the to transfer the
reader signal due information stored
to 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 Range Data Speed Cost of Application
Tags
Low Frequency <5cm Low High • Animal Identification
(125kHz)
(passive) • Access Control
High Frequency (13.56 10 cm – 1m Low to Moderate Medium • Smart Cards
Mhz) to 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
Ghz) (Autotoll)
(passive)
• Container Tracking
20m – 40m
(active)
8. CURRENT APPLICATIONS
Application Segment Representative Competitive Technologies Current Penetration Typical Tag Type
Applications
Access Control Doorway entry Other keyless entry technologies High Passive
Asset Tracking Locating tractors within a None Low Active
freight yard
Asset Tagging Tracking corporate Bar Code Low Passive
computing systems
Authentication Luxury goods counterfeit Holograms Low Passive
prevention
Baggage Tracking Positive bag matching Bar Code, Optical Character Low Passive
Recognition
POS Applications SpeedPass Credit Cards, Smart Cards, Medium Passive
Wireless Phones
SCM (Container Level) Tracking containers in GPS-based Systems Low Active
shipping terminals
SCM (Pallet Level) Tracking palletized Bar Code Minimal Active, Passive
shipments
SCM (Item Level) Identifying individual items Bar Code Minimal Passive
Vehicle Identification Electronic toll collection Bar Code, License plate, reader Medium Active, Passive
systems
Vehicle Immobilizers Automotive ignition systems Other theft prevention High Passive
technologies
11. ONLINE SURVEY
Target: SME
Information: Opinion on RFID and its applications
Site:
http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuyuWtsk4
12. SURVEY RESULT
Types of industries that respondents think
it is possible to apply RFID technology
Document Management
8%
Inventory Control
10%
Security
Customer Services
8%
5%
Library Management Hotel Management
21% Other 5%
18%
Banking and Finance
5%
Pharmaceutic
manufacturing
Social Services
industries Logistics and Supply Chain 3%
15% Management
20%
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