Mechanics of RFID

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RFID Readers
Speaker: Kai Figwer, LXE
Content: This presentation surveys RFID reader types and capabilities.
  1. Reader Functions
    1. Create an RF Field using antenna
      1. 3-Dimensionality
      2. Null spots
    2. Transmit & Receive RF signals
      1. Antenna types
      2. Antenna polarization
      3. Interference issues
        1. Reader collision
        2. Tag collision & anti-collision algorithms
        3. Environmental sources of RF noise
    3. Control unit and command execution
    4. Data transfer interface
    5. Receive and respond to host computer
       
  2. Fixed Readers And When To Deploy Them
    1. Fixed
    2. Tunnel
    3. Portal
       
  3. Mobile Readers And When To Deploy Them
    1. Hand Held and Ruggedized Hand Held
    2. Vehicle mounted
    3. CF cards and PDA’s
       
  4. Regulations
    1. FCC power limits
    2. Minimum human distance regulations
       
  5. Reader Inputs And Outputs And When To Use Them
    1. Inputs: Motion sensors, tamper indicators, presence detectors
    2. Outputs: Visual indicators, audible signals, emails, actuation of gates, doors and sortation devices

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