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System for tracking grain

  • US 7,511,618 B2
  • Filed: 12/09/2005
  • Issued: 03/31/2009
  • Est. Priority Date: 07/01/2004
  • Status: Expired due to Fees
First Claim
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1. A system for tracking transported grain, the system comprising:

  • a writer for recording data into an RFID tag, the data including at least a time when the RFID tag was handled with surrounding grain and information sufficient to determine a location of handling at the time when the RFID tag was handled with surrounding grain;

    a reader for retrieving said recorded data from the RFID tag;

    a radio-frequency identification (RFID) tag dimensioned to have a size approximating surrounding grain, said tag comprising a memory and an RF communication channel, wherein said writer records the data in the memory, and wherein said reader retrieves the recorded data from the memory;

    a remover for removing said RFID tag from surrounding grain;

    wherein said remover comprises;

    a container for holding RFID tags;

    a magnet for magnetically attracting the RFID tags; and

    a moving surface for moving said magnetically attracted RFID tags towards said container, said moving surface being disposed between said magnet and the surrounding grain including the RFID tags;

    said moving surface moving said magnetically attracted RFID tags to a location wherein the RFID tags are sufficiently displaced from a force of said magnet and is permitted to freely fall into said container.

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