Study: RFID Scan Accuracy Drops As Number Of Items Increases

The more RFID-tagged items retailers place on Z-bars or shelves, or in boxes, the lower the read rate will be when those items are scanned, according to a study out of the University of Arkansas. By setting up store-like scenarios in a university lab, researchers conducted three feasibility test scenarios of RFID tagged apparel and shoes.

What they found was that when an associate scanned items, the number of items scanned affected the read rate. For example, researchers scanned RFID items hung on a rounder. When there were 97 items, they found a 99.38 percent read rate. Compare that to the 89.89 percent accuracy of 180 items scanned.