Address-setting device and air conditioning system

    公开(公告)号:US11968173B2

    公开(公告)日:2024-04-23

    申请号:US17273829

    申请日:2019-08-28

    摘要: A communication system includes a first device, second devices, and a communication line providing a serial connection from the first device to the second devices to establish a communication connection. An address setting device of the communication system is configured to set addresses of the second devices. The address setting device includes a communication controller. The communication controller is configured to transmit a transmission signal toward the second devices through the communication line and change at least one of an amplitude or a frequency of the transmission signal, and associate the addresses of the second devices with connection precedence of the second devices to the first device based on a reception signal received through the communication line.

    Device network system
    5.
    发明授权

    公开(公告)号:US11902045B2

    公开(公告)日:2024-02-13

    申请号:US18230589

    申请日:2023-08-04

    CPC分类号: H04L12/2809 H04L41/08

    摘要: In a device network system, system recognition processing that identifies a device connected by a wired line is performed using a low-frequency signal of a frequency lower than a first frequency used in communication, and a signal of the first frequency is used to transmit predetermined instruction information. The low-frequency signal includes first information for connection to a network, and identification information of a group to which a device to which the low-frequency signal is transmitted belongs. The predetermined instruction information is transmitted to a device that has received the low-frequency signal, has registered the first information, and has connected to the network, and for which participation in the network has been approved.

    Device-registration-operation assisting apparatus

    公开(公告)号:US11611864B2

    公开(公告)日:2023-03-21

    申请号:US17435659

    申请日:2020-03-13

    IPC分类号: H04W4/00 H04W8/00 H04W60/04

    摘要: A device-registration-operation assisting apparatus in a device management system including a plurality of devices installed in a building and a management device connected to the devices via a network, assists in an operation to register the devices. The device-registration-operation assisting apparatus includes an emission unit of an electromagnetic wave, and a mobile terminal. The emission unit is integrated into or positioned near one of the plurality of devices. The mobile terminal includes a receiving unit that receives the electromagnetic wave, a display unit that displays information of the device, and an input unit that receives an input of registration information in order to register the device displayed on the display unit in the device management system. The display unit does not display the information of the device for which the registration information is input to the input unit, or changes display of the information.

    Network system that facilitates device recognition in a high-frequency communication environment

    公开(公告)号:US11588565B2

    公开(公告)日:2023-02-21

    申请号:US17599222

    申请日:2020-03-24

    IPC分类号: H04J1/12 H04L41/0893

    摘要: System recognition is performed on devices connected to an identical system without recognizing a device of a different system as a device of the identical system in high-frequency communication. In a device network system, in a state in which a first device group is set in advance as a physically connectable system or in a state in which the first device group is recognized as a physically connectable system, in a case where the first device group or a second device detects occurrence of a state in which the second device outside the system is recognized as belonging to the system, the first device group or the second device causes the second device to leave the system. As a result, a network can be normally maintained even in high-frequency communication.

    Air conditioning system
    9.
    发明授权

    公开(公告)号:US11489552B2

    公开(公告)日:2022-11-01

    申请号:US16976272

    申请日:2019-03-01

    IPC分类号: H04B3/02 F24F11/88 F24F11/54

    摘要: An air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit through an air conditioning communication line. The outdoor unit includes: a control unit; a compressor; a fan; a compressor inverter; a fan inverter; a heat exchanger; and valves of various types. The control unit of the outdoor unit has a coupling capacitor and a noise-cutting transformer which are between a communication circuit and the air conditioning communication line.

    Communication network system
    10.
    发明授权

    公开(公告)号:US11990950B2

    公开(公告)日:2024-05-21

    申请号:US18220146

    申请日:2023-07-10

    IPC分类号: H04B3/44 H04B3/30 H04B3/46

    CPC分类号: H04B3/44 H04B3/30 H04B3/46

    摘要: An air-conditioning apparatus includes a first transmission channel, a plurality of second transmission channels different from the first transmission channel, a controller connected to the first transmission channel and not connected to the second transmission channels, a plurality of air-conditioning indoor units connected to the second transmission channels and not connected to the first transmission channel, and a plurality of air-conditioning outdoor units. The plurality of air-conditioning outdoor units electrically connect the first transmission channel and the second transmission channels, and do not transmit a short-circuit state occurring in one of the first transmission channel and the second transmission channels to a transmission channel other than the one of the first transmission channel and the second transmission channels, thereby enabling communication between devices connected to the transmission channel other than the one.