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WIRELESS TAG COLLECTIVE READING DEVICE, AND NETWORK ARTICLE MANAGEMENT SYSTEM

  • US 20120025988A1
  • Filed: 10/12/2011
  • Published: 02/02/2012
  • Est. Priority Date: 04/14/2009
  • Status: Active Grant
First Claim
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1. A wireless tag collective reading device for collectively reading tag information from articles equipped with wireless tags each emitting the tag information in response to an electromagnetic wave, the device comprising:

  • a rack which comprises storage areas to store the articles;

    an antenna unit which applies the electromagnetic waves to the articles stored in the rack, and receives the tag information emitted from the wireless tags;

    an electromagnetic wave controller which controls directivity, intensity, and phase of the electromagnetic waves emitted from the antenna unit;

    a position controller which controls relative positions of the antenna unit and the rack;

    a reader which reads the tag information from a signal received by the antenna unit;

    an article detector which detects whether the articles are stored in the storage areas in the rack, respectively;

    a counter which counts a total number of the articles stored in the storage areas in the rack from a detection result of the article detector; and

    a checking unit which checks number of pieces of the tag information read by the reader against the number of the stored articles counted by the counter.

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