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ANSHUMAN BEHERA

0811016193

ECE-D


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Very small and inexpensive

Silicon core of an radio tag is now 0.4mm

The antenna can be printed onto a productspackaging at time of manufacturing

Radio tags can be purchased for less that 0.25 inquantity.

RFID is small enough, fast enough, and cheapenough to do real work with today.


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RFID is a technology that uses radio-frequency wavesto transfer data between a reader and a movable

item to identify, categorize, track

Three parts to a RFID implementation:

Tag (chip and antenna) Reader

Database & software


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An RFID tag is an object that can be stuck on or incorporated into a

product, animal, or person for the purpose of identification using

radio waves .

Tags ( Chip + Antenna + Substrate )

Tag types

Active

Passive

Semi Passive

Frequency at which these tags are usedLF: Between 125 to 134 kilohertz.

HF: At 13.56 megahertz.

UHF: Between 868 to 956 megahertz.


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Active RFID Passive RFID

Tag Power Source Internal to tag Energy transferredusing RF from reader

Tag Battery Yes No

Availability of power Continuous Only in field of reader

Required signalstrength to Tag

Very Low Very High

Range Up to 100m Up to 3-5m, usuallyless

Multi-tag reading 1000s of tagsrecognized up to100mph

Few hundred within 3mof reader

Data Storage Up to 128Kb 128 bytes


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The microchip picks up signals from and sends signals to areader.

Electronic Product Code (EPC).

The antenna enables the chip.

The reader converts the radio waves.

EPC is retrieved from the tag.

READER

ANTENNA


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RFID Barcode

Forgery is difficult Forgery is easy

Scanner not required. No needto bring the tag near thereader

Scanner needs to see the barcode to read it

RFID is comparatively fast It is relatively slow.

Can read multiple tags Can read only one tag at atime

Relatively expensive ascompared to Bar Codes

(Reader 1000$, Tag 20 cents apiece)

Relatively less expensive

Can be reusable within factory

premises

Cannot be reused


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IndustrialIndustrial

Field ServiceField Service

HealthcareHealthcare

Retail/CPGRetail/CPG

LogisticsLogistics

GovernmentGovernment


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Animal tagging

Waste management

Transportation and logistics

Manufacturing and Processing

Security

Time and attendance

Postal tracking

Airline baggage reconciliation

Road toll management


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Patni Computer Systems Lab Implemented Animal TrackingSystem

Wipro Technologies - Member of the Electronic Product Code (EPC)council

- Setting up a lab to study RFID- Working on pilot projects

Infosys Technologies RFID consulting on logistics player in theRFID space.

TCS have tied up with Hyderabad university to produce RFID tagged

mark sheets & degrees to deter the use of fake degree.

Intellicon - pilot project for BEL Bangalore, tags installed onemployee buses. Buses inside the BEL campus were tracked withthe aim of gauging employee punctuality.


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Optimally implementing RFID is challenging andrequires both creative vision and careful execution.But nothing worthwhile is not challenging, in life

and in business.

And, when properly approached, RFID will be amajor piece of our future.


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http://www.rfidupdate.com/articles/index.php?id=1207

http://electronics.howstuffworks.com/gadgets/high-tech-gadgets/rfid3.htm

Collins, Jonathan. "RFID Labels for Less." RFID Journal.

1/26/2004 (10/17/2007).http://www.rfidjournal.com/article/articleprint/770/-1/1/

RFID Journal. (10/17/2007) http://www.rfidjournal.com

Department of Homeland Security. "E-Passports."(10/16/2007)

http://www.dhs.gov/xtrvlsec/crossingborders/gc_1161636133959.shtm

Department of Homeland Security. "REAL ID." (10/17/2007).http://www.dhs.gov/xprevprot/laws/gc_1172767635686.shtm


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