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ARTICLE MANAGEMENT SYSTEM

  • US 20160292977A1
  • Filed: 10/23/2014
  • Published: 10/06/2016
  • Est. Priority Date: 11/11/2013
  • Status: Active Grant
First Claim
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1. An article management system comprising:

  • a line constituted by an open-type transfer line terminated with matching termination, the line transmitting and receiving a radio signal;

    a distribution area in which an article to be managed is placed, the article to be managed being placed in the distribution area;

    an RF tag provided with tag transmission unit for electromagnetic coupling with the line of the distribution area for the article to be managed;

    signal communication unit provided to one end of the line;

    an antenna configured to perform non-contact signal communication with the signal communication unit; and

    an RFID reader for sending out a transmission signal to the antenna, and receiving a response signal output by the tag transmission unit via the antenna,wherein the RFID reader detects one of presence and absence of the article to be managed by detecting a variation in an operating characteristic of the tag transmission unit caused by the article to be managed as a result of a variation in one of an intensity and a phase of a signal reflected from the RF tag.

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