Patent ID: 9652647
Date: 2017-05-16
CPC Classifications: A47F,G06K,G06Q,H01Q

Claim:
1. An article management system comprising: a reader transmission line formed as a transmission line terminated with matching impedance; a plurality of RFID tags fixed corresponding to an article allocable area above the reader transmission line and electromagnetically coupled to the reader transmission line; a metal sheet placed on the plurality of RFID tags and having an opening at positions corresponding to RFID tags located within an assigned position of an article assigned to place the article in the allocable area among the plurality of RFID tags; a tag reading unit that reads the plurality of RFID tags by electromagnetic coupling through the reader transmission line; and an article presence/absence determination unit that determines presence or absence of the article at the assigned position on the metal sheet based on results of reading the plurality of RFID tags.