By, Pratik Gupta 100101172 CS-A,1st year
RFID-What it is? <ul><li>Radio-frequency identification (RFID) is an  automatic identification  method, relying on storing...
Components of  RFID
Components of RFID(cont’d)
Passive RFID Tags
Active RFID Tags <ul><li>Battery Powered tags </li></ul><ul><ul><li>Have much greater range – 100m </li></ul></ul><ul><ul>...
Components of RFID(cont’d) Active RFID Passive RFID Tag Power Source Internal to tag Energy transferred using RF from read...
RFID Vs Bar Code RFID Barcode Forging  is difficult Forging is easy Scanner not required. No need to bring the tag near th...
<ul><li>Gillette & Co: </li></ul><ul><li>Objective: To Track movement of product from Packaging Center to Plant’s distribu...
Uses of RFID <ul><li>Used where unique identification is needed. </li></ul><ul><li>Large Retail companies – Product Tracki...
 
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Radio frequency identification

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Transcript of "Radio frequency identification"

  1. 1. By, Pratik Gupta 100101172 CS-A,1st year
  2. 2. RFID-What it is? <ul><li>Radio-frequency identification (RFID) is an automatic identification method, relying on storing and remotely retrieving data using devices called RFID tags or transponders. </li></ul><ul><li>RFID (radio frequency identification) is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum to uniquely identify an object, animal, or person. </li></ul><ul><li>An alternative to bar code . </li></ul><ul><li>RFID is also called dedicated short range communication (DSRC) . </li></ul>
  3. 3. Components of RFID
  4. 4. Components of RFID(cont’d)
  5. 5. Passive RFID Tags
  6. 6. Active RFID Tags <ul><li>Battery Powered tags </li></ul><ul><ul><li>Have much greater range – 100m </li></ul></ul><ul><ul><li>Hold much more information – Kbytes </li></ul></ul><ul><ul><li>Can integrate sensing technology </li></ul></ul><ul><ul><ul><li>Temperature, GPS </li></ul></ul></ul><ul><ul><li>Can signal at defined time </li></ul></ul><ul><ul><li>Multiple tags can be recorded at once </li></ul></ul><ul><li>Used for higher value items </li></ul><ul><ul><li>Shipping containers </li></ul></ul><ul><ul><li>Babies </li></ul></ul><ul><ul><li>Electronic assets </li></ul></ul><ul><li>Cost between $20 and $40 per item </li></ul><ul><li>Life between 2 – 4 years </li></ul>
  7. 7. Components of RFID(cont’d) Active RFID Passive RFID Tag Power Source Internal to tag Energy transferred using RF from reader Tag Battery Yes No Availability of power Continuous Only in field of reader Required signal strength to Tag Very Low Very High Range Up to 100m Up to 3-5m, usually less Multi-tag reading 1000’s of tags recognized – up to 100mph Few hundred within 3m of reader Data Storage Up to 128Kb or read/write with sophisticated search and access 128 bytes of read/write
  8. 8. RFID Vs Bar Code RFID Barcode Forging is difficult Forging is easy Scanner not required. No need to bring the tag near the reader Scanner needs to see the bar code to read it RFID is comparatively fast Can read multiple tags Can read only one tag at a time Relatively expensive as compared to Bar Codes (Reader 1000$, Tag 20 cents a piece) Can be reusable within factory premises Cannot be reused
  9. 9. <ul><li>Gillette & Co: </li></ul><ul><li>Objective: To Track movement of product from Packaging Center to Plant’s distribution center. </li></ul><ul><li>Previously->Using Bar Code, time taken=80 sec to 20 min </li></ul><ul><li>1999->With RFID it takes 20 seconds. </li></ul><ul><li>Gains->Gillette saves 20% in Operational Cost at each Distribution Center. </li></ul>
  10. 10. Uses of RFID <ul><li>Used where unique identification is needed. </li></ul><ul><li>Large Retail companies – Product Tracking. </li></ul><ul><li>Hospitals & Nursing Homes – Patient Tagging . </li></ul><ul><li>Airports – Baggage Tracking. </li></ul><ul><li>Security Applications – Contactless Smart Cards. </li></ul><ul><li>RFID Readers could also WRITE onto Tags. </li></ul><ul><li>RFID Sensors to sense temperature, movement, radiation, food quality. </li></ul><ul><li>Passports-UK, Australia, Finland, Ireland. </li></ul><ul><li>RFID is used in Libraries. </li></ul><ul><li>Replacing Barcodes. </li></ul>

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