RFIDa.ppt

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RFIDa.ppt

  1. 1. RFID “ The hidden danger”
  2. 2. RFID <ul><li>What is it? </li></ul><ul><li>How does it work? </li></ul><ul><li>Uses and examples of RFID </li></ul><ul><li>The (dangerous) future? </li></ul><ul><li>Discussion & Questions </li></ul>
  3. 3. RFID What is it? <ul><li>Radio Frequency Identification </li></ul><ul><li>RFID tags: Small transponder devices </li></ul><ul><li>Using radio waves to communicate </li></ul>
  4. 4. RFID How does it work? <ul><li>Transceiver – big and needs power </li></ul><ul><li>Transponder – very small and doesn’t need any power source! </li></ul><ul><li>The transceiver sends a signal to the transponder, and the transponder replies with a simple answer </li></ul>
  5. 5. RFID How does it work? TRANSCEIVER TRANSPONDER
  6. 6. RFID How does it work? TRANSCEIVER TRANSPONDER
  7. 7. RFID How does it work? <ul><li>Small transponders do not need batteries </li></ul><ul><ul><li>Can sends simple short messages </li></ul></ul><ul><ul><li>Pretty dumb, but getting smarter </li></ul></ul><ul><li>Big transponders need batteries </li></ul><ul><ul><li>Can send long messages </li></ul></ul><ul><ul><li>Smart, used for more complex communications </li></ul></ul><ul><li>Different frequencies for different sizes </li></ul>
  8. 8. RFID Uses and examples of RFID <ul><li>Shop security </li></ul><ul><li>Car locks </li></ul><ul><li>Toll booths </li></ul><ul><li>Cargo identification </li></ul><ul><li>Spy devices </li></ul><ul><li>Animal tagging </li></ul>
  9. 9. RFID The (dangerous) future? <ul><li>In Cell phones </li></ul><ul><li>Paying your groceries </li></ul><ul><li>Implanted in your arm </li></ul><ul><li>Prison security </li></ul>
  10. 10. RFID The (dangerous) future? <ul><li>So small they can’t be seen </li></ul><ul><li>“ They” know what you are up too </li></ul><ul><li>Spy ware </li></ul>
  11. 11. RFID Discussion & Questions HOW FAR CAN WE GO? BIG BROTHER?
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