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RFIDs and the Future Logistic System
Dr. Hayden SoDepartment of Electrical and
Electronic Engineering17 Sep, 2008
What we have today…
UPC(Universal Product Code)
JAN(Japanese Article Number)
EAN(European Article Number)
Article Identification – Bar Code
UPC, EAN, JAN: Uniquely identify a type of product with a set of digits + check-digits• UPC: 12 digits• EAN, JAN: 13 digits
Identify products at• point-of-sale• Online shopping
Countrycode
Companycode
Productcode
RFID: Radio Frequency ID
Limitations of Bar Codes
Only useful with line-of-sight Limited information Error Prone
• Dirt on label, wear, etc Alternatives:
Electronic Product Code (EPC)
PassportE-money
AccessControl
RFID
Radio Frequency IDentification• A method to retrieve/store information remotely using
RFID tags Three parts in the system:
• An RFID tag• An RFID reader• IT Applications
3 Categories• Passive• Active• Semi-Active
RFID at work – Octopus Card
Introduced in Hong Kong in September 1997
Today• 50,000 readers• > 17 million cards (HK’s
population is 7 million)• > 10 million transactions per
day• HK$85 million per day
Sony FeliCa technology
World Information Technology and
Services Alliance's 2006 Global IT Excellence
Award:Chairman's Award
RFID at Work – Credit Card
All three major credit card companies have RFID embedded cards• VISA: payWave• MasterCard: PayPass• American Express: ExpressPay
All cards use the same international standard• ISO 14443
Other Places You Can Find RFIDs?
Automatic Toll Collection System
PassportAccess Card
Olympics Ticket
and more…
Future Shopping – RFID Mirror
Clothes tagged with RFID tags
Smart mirror display corresponding information automatically
Touch surface allows user interaction
Security and Privacy
People concern with security and privacy because information is transmitted over-the-air• Easy for sniffer to steal information
without stealing your card Many levels of encryption and security
measures in place• But… still need to be low cost
Many system hacked already• E-Passport cloned• Encryption for popular access card using
Mifare technology cracked