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Air-conditioning control system

  • US 10,451,304 B2
  • Filed: 01/30/2015
  • Issued: 10/22/2019
  • Est. Priority Date: 01/31/2014
  • Status: Active Grant
First Claim
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1. An air-conditioning control system for controlling a central-type air-conditioning system capable of performing conditioning in a first operating mode and conditioning in a second operating mode having lower energy consumption than the first operating mode, for each of a plurality of areas of which at least a portion of boundaries is partitioned by an object, the air-conditioning control system comprising:

  • a plurality of auxiliary controllers that are set in respective areas of the plurality of areas; and

    a main controller that is capable of communicating with each of the plurality of auxiliary controllers;

    each of the plurality of auxiliary controllers comprising;

    a sound wave receiving unit that receives sound waves that are outputted from a portable apparatus that is capable of outputting sound waves;

    a sound wave strength information transmitting unit that transmits sound wave strength information to the main controller, the sound wave strength information indicating a reception strength of the sound waves received at the sound wave receiving unit; and

    a processor that receives a time synchronization command transmitted from the main controller and sets a time of a clock to be synchronized among the plurality of auxiliary controllers, based on the time synchronization command,each of the auxiliary controllers repeatedly performing reception of the sound waves by the sound wave receiving unit and transmission of the sound wave strength information to the main controller by the sound wave strength information transmitting unit, at a common timing among the plurality of auxiliary controllers; and

    the main controller comprising;

    a storage unit that stores therein a predetermined threshold;

    a processor that transmits the time synchronization command to each of the plurality of auxiliary controllers; and

    an operating mode setting unit that, when at least a single piece of specific sound wave strength information, indicating a sound wave strength that is at the predetermined threshold or higher, is present among pieces of sound wave strength information received from each of the auxiliary controllers, sets the first operating mode for an area in which the auxiliary controller that is a transmission source of the specific sound wave strength information indicating highest sound wave strength is set, and sets the second operating mode for any remaining areas, the operating mode setting unit repeatedly performing setting of an air-conditioning operating mode for each of the plurality of areas.

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