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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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