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公开(公告)号：US20180202682A1
公开(公告)日：2018-07-19
申请号：US15862825
申请日：2018-01-05
Applicant: LG ELECTRONICS INC.
Inventor： Chulmin PARK , Sangwoo Lee , Juntae Kim , Kwonhyung Lee
Abstract: Disclosed is an air conditioner and a control method thereof, the air conditioner where a plurality of units is connected wirelessly to receive and transmit data with each other, and the control method in which an address is set in a wireless communication method using an initially set basic channel, a group is set in response to a response signal, and communication is performed with an indoor unit belonging into the same group through a new channel. Accordingly, the plurality of units in the air conditioner is able to receive and transmit data with each other wirelessly, and a group is set with respect to multiple units so that the multiple units are able to communicate with each other directly. Additionally, because a group is able to be easily set with respected to units connected via a pipe by setting a channel, it is possible to reduce a time for setting wireless communication and make the communication setting accurate. The present disclosure allows units to communicate using a different channel according to which group each unit belongs to, thereby preventing intervention between groups and malfunction of units.
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公开(公告)号：US20190093915A1
公开(公告)日：2019-03-28
申请号：US16144044
申请日：2018-09-27
Applicant: LG ELECTRONICS INC. , Pusan National University Industry-University Cooperation Foundation
Inventor： Hakrae LEE , Jinho KIM , Chulmin PARK , Donggi EOM , Seontae YOON , Kyongdo LEE , Kwonhyung LEE , Sukchan KIM
Abstract: A method for controlling an air conditioner system may include receiving, by one of an outdoor unit and a plurality of indoor units in a group, a command; transmitting, by the outdoor unit, a channel scan command to the plurality of indoor units; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used among a plurality of pre-set channels of a particular group based on a result of the channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. According to this method, an optimal wireless communication channel may be set.
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公开(公告)号：US20190203968A1
公开(公告)日：2019-07-04
申请号：US16233480
申请日：2018-12-27
Applicant: LG ELECTRONICS INC.
Inventor： Hakrae LEE , Hanbae JEON , Jinho KIM , Sunyoung PARK , Chulmin PARK , Seontae YOON , Kyungdo LEE , Kwonhyung LEE
CPC classification number: F24F11/58 , F24F11/54 , H04L12/2838
Abstract: Disclosed is an air conditioner system comprising at least one outdoor unit and a plurality of indoor units. The plurality of units may be grouped into one or more groups. A wireless communication module may be provided at each of the plurality of units and configured to perform wireless communication using a Sub-GHz frequency band. The wireless communication module may include an encoder configured to encode a predetermined signal, a modulator configured to modulate the encoded signal according to Orthogonal Frequency Division Multiplexing (OFDM) using multiple subcarriers, at least one antenna having an antenna pattern formed on a Printed Circuit Board (PCB), and configured to output a signal based on the modulated signal, a demodulator configured to demodulate a signal received at the at least one antenna, according to the OFDM, and a decoder configured to decode the demodulated signal. Accordingly, a high-quality wireless communication environment may be implemented.
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公开(公告)号：US20190093916A1
公开(公告)日：2019-03-28
申请号：US16144119
申请日：2018-09-27
Applicant: LG ELECTRONICS INC. , Pusan National University Industry-University Cooperation Foundation
Inventor： Hakrae LEE , Jinho KIM , Chulmin PARK , Donggi EOM , Seontae YOON , Kyongdo LEE , Kwonhyung LEE , Sukchan KIM
Abstract: A method for controlling an air conditioner system may include a preset reception rate degradation error occurs in one or more indoor unit, transmitting a channel switch request signal to an outdoor unit belonging to a particular group; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used by the particular group based on a result of a channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. Accordingly, the communication channel may be changed to an optimal communication channel according to a change a communication environment.
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