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Network system, portable terminal device, and method for specifying device

  • US 9,826,360 B2
  • Filed: 07/12/2013
  • Issued: 11/21/2017
  • Est. Priority Date: 07/12/2013
  • Status: Active Grant
First Claim
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1. A network system, comprising:

  • a plurality of processors, the plurality of processors are configured to;

    acquire, by an acquirer, a reception electric field intensity or a transmission delay time in wireless communication between each of multiple apparatuses connected to a network and a portable terminal device;

    calculate, by a nearness degree calculator, degrees of nearness, wherein a degree of nearness indicates a nearness between each of the multiple apparatuses and the portable terminal device in a numerical value based on an acquisition result by the acquirer;

    by an operation requestor;

    responsive to the degrees of nearness calculated by the nearness degree calculator, display, on a display, a list based on the degrees of nearness calculated by the nearness degree calculator; and

    thenreceive selection of any one field of fields on the list which is displayed on the display so as to receive designation of a candidate target apparatus from a user; and

    thenresponsive to receiving the designation of the candidate target apparatus from the user, request the candidate target apparatus designated by the user to execute a predetermined operation;

    by an apparatus identifier;

    after the operation requestor requests the candidate target apparatus to execute the predetermined operation, receive a decision on whether or not to approve the candidate target apparatus from the user, andresponsive to receipt of the decision from the user approving the candidate target apparatus, identify the candidate target apparatus as a work-target apparatus intended by the user; and

    measure, by a distance measurer, a distance to an object,wherein the processor is configured to present to the user information regarding the distance measured by the distance measurer before requesting each of the multiple apparatuses to wirelessly transmit response data.

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