Cheung Cho Hang Christine13200828

Tuesday, October 15, 2013

Introduction BackgroundE-survey

result

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

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

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

Active Tags

•Use a battery

•communicate over

distances of several

meters

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

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

Mediu

m 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

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

Credit Cards with RFID

(Paywave function)

Applications

Octopus (Smart Card)

Autotoll (Electronic toll collection)

Applications

Access Control

Target: SME

Information: Opinion on RFID and its applications

Site: ◦ http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuy

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Enhanced customersatisfaction Improved efficiency

Increased inventoryturnover rate Reduced manpower

Reduced total cost

0

2

0

2

1

0

2

1

3

0

11

0

1

0

3

44

44

Benefits of using RFID in different industries

Manufacturing Retailing Transportation Warehousing

6%

23%

24%

29%

6%

12%

Types of the companies answersing the questionnaire

Education

Manufacturing

Retailing

Warehousing

Transportation

Others

In medical uses and library management

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