Radio%20Frequency%20Identification

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Radio Frequency Identification

• So What?

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What is RFID

• Type of technology that uses electromagnetic
  radio frequency to identify objects, animals and
  humans
• Transponders and Readers
• Replacement of barcodes

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Types of RFID tags
Type of Tag Power source Range Description
Passive Rely on radio signal that was transmitted to them 10 cm a few meters Can only reflect signals back
Semi Passive Internal battery 10-100 meters Power source activates chip, does not emit signal
Active Internal battery Hundreds of meters Generate powerful responses reliable and effective
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It goes way back

• WWII U.S., British, Germans, Japanese using
  plane radar
• 1970s Los Alamos Natl Laboratory tracking
  nuclear material
• 1950s electronic article surveillance tags
• 1980s use of RFID for bridge tolls

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Progress of RFID

• Auto-ID center 1999
• Track items through supply chain
• Sarma and Brock create network to link objects to
  internet
• 2003-100 companies supporting Auto-ID
• EPC used by retailers to track goods

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Wal-Mart meets RFID

• Use RFID to count inventory and detect when they
  are out of stock
• Only 3 of suppliers use RFID
• Take small steps slowly implement system.
• Use RFID to support promotions

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U.S. DoD uses RFID

• As of January 1, 2007 all cases and pallets must
  have RFID tags
• Tacking weapons and supplies shipped overseas
• Only passive tags used when in foreign countries
  so enemies cant read the tags

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Healthcare wants RFID

• Anti-Counterfeiting history of medicines
  available at all times
• RFID on patients to give information about
  medical history.
• Error prevention prevents wrong procedure from
  happening

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Other Uses
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The Concerns

• Possibility of being tracked through our
  belongings
• Knowing where people are at all times.
• Using RFID to find and steal goods
• Information available to anyone with an RFID
  reader

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References

• http//en.wikipedia.org/wiki/RFID
• http//www.news.com/2010-1069-980325.html
• http//www.rfidjournal.com/article/view/1338/1/129
  
• http//www.idtechex.com/products/en/articles/00000
  470.asp
• http//www.informationweek.com/news/showArticle.jh
  tml?articleID198700170
• http//www.rfidjournal.com/article/articleview/108
  0/1/1/