Communication method between indoor machine and outdoor machine of air conditioner


PURPOSE: To increase transmission speed of a data and a control signal, and to quickly control an indoor environment to make a comfortable environment, by transmitting plural bits in synchronizing with the frequency of a power source of an air conditioner. CONSTITUTION: When a power source switch of an air conditioner is turned on, a controller 10 of an indoor machine outputs data, a control signal, and a serial signal of, for instance, 8 bits (01101001), corresponding to a set value which is set by an operation switch by a timing of a synchronizing signal pulse, to a controller 11a. On the other hand, a controller 11 of an outdoor machine converts its serial signal (01101001) by a timing of the synchronizing signal pulse and inputs it. In such a way, between the controllers 10, 11 of the indoor machine and the outdoor machine, the serial signal of plural bits is sent and received by a timing of a synchronizing signal pulse generated by synchronizing with a frequency of a power source. Accordingly, the transmission speed between the indoor machine and the outdoor machine can be increased. In such a way, a compressor, etc., of the outdoor machine can be allowed to respond quickly, and the indoor environment can also be controlled quickly. COPYRIGHT: (C)1988,JPO&Japio




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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-S6078241-AMay 02, 1985Daikin Ind LtdSignal transmission device of separate type air conditioning device
    JP-S61228740-AOctober 11, 1986Toshiba CorpData transmission equipment

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    JP-H03152337-AJune 28, 1991Daikin Ind LtdOperation control device of air conditioner
    JP-H03152338-AJune 28, 1991Daikin Ind LtdOperation control device for air conditioner
    JP-H0796948-B2October 18, 1995ダイキン工業株式会社空気調和装置の運転制御装置