Abstract: A system for tracking transported grain. A writer records data into an RFID tag. The data includes 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 retrieves the recorded data from the RFID tag.

Abstract: A tracking device for transported grain. A tracking device for grain comprises a radio-frequency identification (RFID) tag dimensioned to have a size approximating surrounding grain. The tag comprises a memory and an RF communication channel. Data is stored in the memory, comprising 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 the surrounding grain.

Abstract: A method and system of tracking transported grain. A radio-frequency identification (RFID) tag is provided for being deposited in a container with the grain. The tag is dimensioned to approximate a size of an individual grain, and comprises a memory and RF communication channel. The RFID tag further comprises data stored in the memory, 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 the RFID tag was handled with the surrounding grain.