RFID Technology
RFID Technology
RFID Technology
Outline
History
of RFID
Types & Systems
Current Uses
Future Applications
Controversies
What is RFID?
A
History of RFID
1939
IFF Transponder
Used by allies in WWII
1945
Leon Theremin
Espionage tool for Soviet Union
History cont.
1973
Retail
Use of RFID in tracking and access
applications appeared
Price, color, date of purchase
RFID Tags
Contains
Silicon chips
Antennas
Components
Passive
Semi-Passive
Active
Passive
Have no internal power supply
Electrical current inducted in antenna by the incoming
signal proves power for integrated circuit in tag to power up
and transmit response
Very Small, Limited Range, Unlimited Life
Semi Passive
Similar to passive tags, with the addition of a small battery
Battery powers the integrated circuit
Bigger, Longer Range, Limited Life
Active
Have their own internal power source
Many operate at fixed intervals
Also called beacons (broadcast own signal)
Large ( coin), Much larger memories, Longer range
RFID System
Interrogator: an antenna
packaged with transceiver
and decoder.
emits signal activating
tag.
Growing Technology
Line
of Sight Technology
RFID superior over Barcode
Elements and accidents can disturb or
damage barcodes
Best
Current Uses
Wal-Mart
Department of Defense to
better track goods along supply
chain (logistics and inventory).
Electronic payment credit card
companies moving to RFID-enabled
cards to increase efficiency and
reduce time at point-of-sale for
customer, merchant, and card issuer.
Medical
Drug Counterfeiting
Tracking & Tracing
Medical Passports
Foster Care System
Food Chain
Precautions
Shopping
Cashier-less check
out and payment
Household
Technology
Smart keys
Intelligent
washing machines
Monitoring
refrigerators
Intelligent
ovens/microwaves
Controversy
Privacy
Consumer Rights
Consumers should be informed if their
products have an RFID tag.
Controversy cont.
Killing
of RFID Tags
Implants/Personal Information
Verichip is a tiny implantable chip that holds
medical records
Bracelets to track infants in medical wards
and elderly in nursing homes.
Used in animals for tracking.
Controversy cont.
Medical
Health Risks
Hard to remove once implanted.
Long term effects unknown.
Religious
Mark of the Beast, etc.
The implanted RFID chip is certain to inflame
Christian fundamentalists, some of whom believe that
such chips are the Satanic mark of the Beast
predicted in Revelations 13:16 And he causeth all,
both small and great, rich and poor, free and bond to
receive a mark in their right hand, or in their
foreheads.
Main Points
Slowly
becoming an industry
standard
Speeds up the supply chain process
Easier to manage inventory
Continually evolving
Controversial technology
RFID technology?
When was RFID introduced?
What are two main reasons RFID is
controversial?
Name the three types of RFID tags?
How are they currently using RFID tags?
How is RFID Technology expected to
effect households?
Questions?