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
RFID
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
RFID components
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
RFID Tag
6. Active Tags
• Use a battery
• communicate over
distances of several
meters
Semi-passive Tags
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
• Derive their power
from the field
generated by the
reader
• without having an
active transmitter to
transfer the
information stored
Types of RFID Tags
7. Target: SME
Information: Opinion on RFID and its
applications
Site:
◦ http://qtrial.qualtrics.com/SE/?SID=SV_9N5UP
RZuyuWtsk4
Online Survey
8. Types of industries that respondents think
it is possible to apply RFID technology
Document Management
8%
Inventory Control
10%
Security
8%
Library Management
21%
Customer Services
5%
Other
18%
Hotel Management
5%
Banking and Finance
5%
Pharmaceutic
manufacturing industries
15%
Logistics and Supply Chain
Management
20%
Survey Result
Social Services
3%
11.
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
Conclusion
