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US 6,669,089 B2Granted
Radio frequency identification systems for asset tracking
OwnerEric R. Cybulski, Francis D. Dehn +6inventors
InventorsEric R. Cybulski, Francis D. Dehn, Robert C. Francis, Peter B. Hogerton, Mary C. Kallestad, Karl M. Kropp, James P. McGee, Sai-Kit Tong
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Abstract
An asset tracking system is provided, having particular usefulness in connection with the interrogation of RFID-tagged pallets by a forklift equipped with one or more RFID reader antennas. A useful embodiment of an RFID-tagged pallet is described, along with other beneficial components of such a system.
Claims24
A forklift RFID system, comprising:
- a) at least one RFID antenna positioned on a fixed portion of the forklift;
- b) at least one RFID antenna positioned on a portion of the forklift that is vertically movable with respect to the fixed portion;
- c) a user interface including a touch-panel display;
- and
- d) software adapted to provide information to the display describing which RFID tags have been interrogated by the antennas.
2 more elements
A forklift RFID system, comprising:
- a) a forklift having a mast and a load backrest;
- b) at least one RFID antenna positioned within a column on each side of the forklift, the columns each being bounded by (i) the outer edge of the forklift mast;
- (ii) the outer edge of the forklift, (iii) the back edge of the forklift mast, and (iv) the front edge of the load backrest;
- c) a user interface including a touch-panel display;
- and
- d) software adapted to provide information to the display describing which RFID tags have been interrogated by the antennas.
3 more elements
Dependencies are inferred from the claim text.