US 11,941,477 B2
Systems and methods for improved RFID counting
Herb Billings, Carrollton, TX (US); Kevin Arnold, Carrollton, TX (US); Marc Fukuda, Carrollton, TX (US); and John Rayner, Carrollton, TX (US)
Assigned to Datascan, Carrollton, TX (US)
Filed by Datascan, Carrollton, TX (US)
Filed on Apr. 15, 2022, as Appl. No. 17/721,548.
Claims priority of provisional application 63/176,739, filed on Apr. 19, 2021.
Prior Publication US 2022/0335235 A1, Oct. 20, 2022
Int. Cl. G06K 7/10 (2006.01)
CPC G06K 7/10366 (2013.01) 14 Claims
OG exemplary drawing
 
1. A method to validate radio frequency identification (RFID) counts comprising:
affixing location tags with barcodes through an area to be counted;
recording the location tags;
performing an RFID read of all items associated with each of the location tags, wherein the RFID read is associated with a most likely location tag, associating the RFID read with the most likely location tag further comprising:
ranking locations for each RFID tag by highest signal strength, highest average signal strength, and/or highest number of reads within a location's read timeframe;
calculating a combined score for each location and RFID combination; and
assigning the location with a highest combined score to each RFID tag;
comparing a piece count of all items associated with each of the location tags to the RFID read to identify whether the piece count matches the RFID read;
rejecting a location when the piece count does not match the RFID read; and
accepting a location when the piece count matches the RFID read.