KR101591589B1 - A control system for an air conditioning device and a method for operating the smae - Google Patents

Abstract

The present invention relates to a control system of an air conditioner and a method of operating the same.
The control system of the air conditioner according to the embodiment of the present invention may include a control system of an air conditioner including at least one outdoor unit and a plurality of indoor units, 1 control device; And a second control device capable of monitoring operation information of the master indoor unit among the plurality of indoor units, wherein a first control command including setting operation information from the first controller or the second controller to the master indoor unit The second control command corresponding to the first control command is transmitted to the slave indoor unit of the plurality of indoor units.

Description

Technical Field [0001] The present invention relates to a control system for an air conditioner and a method of operating the same,

The present invention relates to a control system of an air conditioner and a method of operating the same.

Generally, an air conditioner is provided for cooling / heating the room to create a more pleasant indoor environment, and includes an outdoor unit in which an indoor unit is arranged in each room, and the outdoor unit is connected to the outdoor unit by a refrigerant pipe. The outdoor unit and the at least one indoor unit can be operated and controlled by the control unit.

1, the control system 1 of the conventional air conditioner is provided with an outdoor unit 2, at least one indoor unit 3 communicatively connected to the outdoor unit 2, and at least one indoor unit 3 communicably connected to the indoor unit 3 And a control device 4 for controlling the operation of the apparatus.

The control device 4 may be provided so as to be able to communicate with at least some of the indoor units of the indoor units disposed on each floor of the building. For example, the control device 4 may be arranged to be fixed at a predetermined position of each layer of the building. A plurality of control devices 4 may be provided for each building.

For example, the outdoor unit 2 and the at least one indoor unit 3 may be communicatively connected through the first communication line 5. The control device 4 and the at least one indoor unit 3 may be communicatively connected through a second communication line 6. [

According to the control system 1 of the conventional air conditioner, since the control device 4 is wired to a plurality of indoor units, there is a problem in that the cost due to the wired communication line is increased when the air conditioner is installed.

In many cases, a plurality of indoor units provided in one building are generally operated under the same operating conditions. In such a case, it is inconvenient to control a plurality of indoor units by using the control unit 4.
The following applications are presented in the prior art documents for prior art background.

Patent Application No. 10-1999-0058018 (Multilay type air conditioner, published on July 07, 2001)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a control system for an air conditioner and a method of operating the same.

The control system of the air conditioner according to the embodiment of the present invention may include a control system of an air conditioner including at least one outdoor unit and a plurality of indoor units, 1 control device; And a second control device capable of monitoring operation information of the master indoor unit among the plurality of indoor units, wherein a first control command including setting operation information from the first controller or the second controller to the master indoor unit The second control command corresponding to the first control command is transmitted to the slave indoor unit of the plurality of indoor units.

Also, the operation information included in the second control command is the same as the setting operation information included in the first control command.

When the first control command is transmitted from the first controller to the master indoor unit, the first controller transmits the second control command to the slave indoor unit after the set time has elapsed do.

The air conditioner further includes a first communication line communicatively connecting the outdoor unit and the first control unit to transfer the first control command from the first control unit to the outdoor unit.

The system further includes a second communication line for communicating the outdoor unit with the plurality of indoor units and transmitting the first control command from the outdoor unit to the plurality of indoor units.

The system further includes a third communication line for communicating the master indoor unit from the second control unit and transferring the first control command from the second control unit to the master indoor unit.

In addition, the first control device is a central control device that monitors the operation of the master indoor unit and the slave indoor unit, and controls the operation thereof.

In addition, the second control device is a remote controller capable of monitoring the operation of the master indoor unit and controlling the operation thereof.

Further, the second control device is characterized in that communication connection with the slave indoor unit is limited.

According to another aspect of the present invention, there is provided a method of operating a control system of an air conditioner, comprising: grouping one master indoor unit and one or more slave indoor units of a plurality of indoor units; Transmitting a first control command including setting operation information to the master indoor unit; Operating the master indoor unit according to the setting operation information; And transmitting a second control command to the slave indoor unit, wherein the operation information included in the second control command is the same as the setting operation information included in the first control command.

An outdoor unit communicatively coupled to the master indoor unit and the slave indoor unit; And a central control unit communicatively coupled to the outdoor unit, wherein the first control command and the second control command are transmitted from the central control unit.

An outdoor unit communicatively coupled to the master indoor unit and the slave indoor unit; A central control device communicatively connected to the outdoor unit; And a remote controller connected to the master indoor unit communication, wherein the first control command is transmitted from the remote controller, and the second control command is transmitted from the central controller.

In addition, when the operation information of the master indoor unit is changed, the operation information of the slave indoor unit is formed by replicating the operation information of the master indoor unit.

According to the embodiment of the present invention, if the master indoor unit and the slave indoor unit are grouped and a predetermined condition is input to the master indoor unit, the same operation can be performed by replicating the inputted condition to the slave indoor unit, .

In particular, when a plurality of indoor units provided in one building are operated under the same conditions, the ease of use can be increased.

In addition, since it is not necessary to install a communication line for connecting the control device and the plurality of indoor units, there is an advantage that the cost for installing the air conditioner can be reduced.

Further, since the operation information of the master indoor unit is monitored through the central control unit or the remote controller, and the operation information of the slave indoor unit is set according to the operation information of the monitored master indoor unit, the control method is simple, .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a control system of a conventional air conditioner.
2 is a view showing a configuration of an air conditioner and its control system according to an embodiment of the present invention.
3 is a block diagram illustrating a configuration of a display unit of the control system according to an embodiment of the present invention.
FIG. 4 to FIG. 9 are views showing a registering of the master indoor unit and the slave indoor unit according to the embodiment of the present invention in the control system.
FIG. 10 is a view showing operation information of the master indoor unit and the slave indoor unit through the control system according to the embodiment of the present invention.
11 is a flowchart showing a pattern copying method of a control system according to an embodiment of the present invention.
12 is a diagram illustrating a process in which a pattern is copied when a command is input from a central control unit according to an embodiment of the present invention.
FIG. 13 is a diagram illustrating a process in which a pattern is copied when an instruction is input from a remote controller according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

2 is a view showing a configuration of an air conditioner and its control system according to an embodiment of the present invention.

2, an air conditioner according to an embodiment of the present invention includes an outdoor unit 20, an outdoor unit 20, and a plurality of indoor units 31, 32, 33, 34, and 35.

One or more slave indoor units (32, 33, 34, 35) which are operated by replicating operation information of one master indoor unit (31) and the master indoor unit (31) 35). For example, the slave indoor units 32, 33, 34, and 35 may be provided in a plurality of slave indoor units.

One or more outdoor units 20 may be provided on the roof of the building, and the outdoor units 20 may form a refrigeration cycle together with a plurality of indoor units 31, 32, 33, 34 and 35. The outdoor unit (20) may include a compressor, a heat exchanger, a blower fan, and the like.

The outdoor unit (20) and the plurality of indoor units (31, 32, 33, 34, 35) can be communicatively connected by the second communication line (220).

The master indoor unit 31 is one indoor unit among a plurality of indoor units connected to the outdoor unit 20 and a refrigerant pipe and is a reference indoor unit for outputting operating conditions to the slave indoor units 32, Can be understood.

The slave indoor units 32, 33, 34 and 35 are indoor units other than the master indoor unit 31 among the plurality of indoor units connected to the outdoor unit 20 by refrigerant, It can be understood as an indoor unit, that is, an output indoor unit, which is replicated as it is and operated according to the inputted operating conditions.

The master indoor unit 31 and the slave indoor units 32, 33, 34, and 35 may be grouped to communicate with the outdoor unit 20. Although only five indoor units are shown as being connected to the outdoor unit 20, the master indoor unit and the plurality of slave indoor units grouped into a separate group may be connected to the outdoor unit 20.

The control system 10 of the air conditioner according to the embodiment of the present invention includes the first control device 100 and the second control device 101. [

The first control device 100 is a "central control device" which monitors or controls the operation of all the air conditioners installed in the building, or monitors or controls the operation of the air conditioner provided in each floor of the building .

The first control device 100 may be communicatively connected to the outdoor unit 20 through a first communication line 210.

The second control device 101 is a control device capable of monitoring or controlling operation of a part of indoor units among a plurality of indoor units provided in each floor of a building, User control device "or" remote control ". A plurality of the third control devices 103 may be provided on each floor of the building.

For example, the second control device 101 may communicate with the master indoor unit 31 to monitor the operating state of the master indoor unit 31 or transmit a control command to the master indoor unit 31.

In detail, a plurality of slave indoor units (32, 33, 34, 35), which are controlledly connected to the master indoor unit 31 and the master indoor unit 31, are grouped into one indoor unit group . One second control device 101 may be provided for the master indoor unit 31 and the slave indoor units 32, 33, 34, and 35 registered as one indoor unit group.

At this time, the second control device 101 is communicatively connected to the master indoor unit 31 through the third communication line 230, and is not connected to the slave indoor units 32, 33, 34, . The master indoor unit 31 and the slave indoor units 32, 33, 34, and 35 may not be communicatively connected to each other.

Accordingly, a communication connection operation between the second control device 101 and the plurality of slave indoor units 32, 33, 34 and 35 and the communication connection between the master indoor unit 31 and the plurality of slave indoor units 32, 33, 34, The installation time of the air conditioner can be shortened and the installation cost can be reduced.

In addition, since the second controller 101 does not have to control the plurality of indoor units 31, 32, 33, 34, and 35, the DIP switch setting for controlling the indoor units can be omitted .

When the operating condition of the master indoor unit 31 is changed through the first control unit 100 or the second control unit 101, the plurality of slave indoor units 32, 33, 34, (31).

Hereinafter, the registration (grouping) process of the master indoor unit 31 and the slave indoor units 32, 33, 34, and 35 will be described.

3 is a block diagram illustrating a configuration of a display unit of the control system according to an embodiment of the present invention.

Referring to FIG. 3, the display unit 110 of the first controller 100 according to the embodiment of the present invention includes a menu display unit 120 for displaying one or more menus selectable for monitoring or controlling the air conditioner, A main screen display unit 130 for displaying information corresponding to the menu selected by the menu display unit 120, that is, the information desired by the user in accordance with the selection of the menu, and additional information about the information displayed on the main screen display unit 130 And an additional information display unit 140 for displaying the additional information.

For example, the menu display unit 120 may display menus such as "control / monitoring", "automatic control", "energy monitor", "report", "cycle" and "setting" of the air conditioner.

When the "automatic control" menu of the menu display unit 120 is selected, the main screen display unit 130 displays a main screen 131 showing information corresponding to the "automatic control" menu, And a pattern setting display unit 132 arranged to allow the user to select one of the indoor units and to set an operation pattern of the indoor units for the "automatic control ".

The pattern setting display unit 132 is configured to be able to select any one of "copy pattern", "general pattern", and "emergency pattern".

The "replica pattern" is a pattern in which operating conditions or setting information of the master indoor unit 31 are inputted to the plurality of slave indoor units 32, 33, 34, 35, , 35 are understood as a pattern in which operating conditions or setting information of the master indoor unit 31 are replicated as they are.

When the replica pattern is selected in the pattern setting display unit 132, the main screen display unit 130 displays a master indoor unit setting display unit 133 (see FIG. 3) that can be selected to register the master indoor unit 31 among the input condition indoor units, And a slave indoor unit setting display unit 134 that is selectable for registering the output condition indoor unit, that is, the slave indoor units 32, 33, 34, and 35 among the plurality of indoor units. The master indoor unit setting display unit 133 is referred to as a "first setting display unit" and the slave indoor unit setting display unit 134 is referred to as a "second setting display unit".

When the master indoor unit setting display unit 133 or the slave indoor unit setting display unit 134 is selected, information on the master indoor unit 31 or the slave indoor unit 32, 33, 34, 35 is displayed on the main screen 131 .

The additional information display unit 140 displays information for selecting an option relating to the order of interlocking when the master indoor unit 31 and the slave indoor units 32, 33, 34, 35 are interlocked. For example, the additional information display unit 140 may be provided with an input button for selecting whether the plurality of indoor units are to be interlocked in order of "name order" or "operation order" set in advance.

FIG. 4 to FIG. 9 are views showing a registering of the master indoor unit and the slave indoor unit according to the embodiment of the present invention in the control system.

Referring to FIG. 4, the process of registering the master indoor unit 31 will be described first. 4 is displayed on the main screen display unit 130 when the "edit device" button provided in the main screen display unit 130 of FIG. 3 is selected. At this time, the device edit display unit 150 may be displayed on the main screen display unit 130 in a pop-up form.

The apparatus edit display unit 150 displays a registered device list 151 in which a list related to indoor units registered in the master indoor unit 31 is displayed, an unlisted device list 152 that displays a list of unregistered indoor units, A selectable registration button 153 is included to move the device from the device list 152 to the registered device list 151.

The registered device list 151 displays a list of master indoor units selected for registration, and the unregistered device list 152 displays a list of unregistered master indoor units.

The registration button 153 may include one button for moving the device from the unregistered device list 152 to the registered device list 151 and one button for moving the device from the registered device list 151 to the unregistered device list 152. [ Lt; RTI ID = 0.0 > a < / RTI >

The registration button 153 may be located between the registered device list 151 and the unregistered device list 152. [

For example, after selecting at least one indoor unit among the plurality of indoor units displayed in the unregistered device list 152, the selected indoor unit can be moved to the registered device list 151 by pressing the register button 153. [

4 and 5 illustrate the state in which the indoor device 0 is selected in the unregistered device list 152 and then the registration button 153 is pressed to move to the registered device list 151. [

6, when one of the plurality of indoor units is registered as the master indoor unit 105 and then the "Store" button located below the device edit display unit 150 is pressed in this manner, Information such as "type", "device name", and "address" and the like of the indoor unit registered as the input condition indoor unit, that is, the master indoor unit, may be displayed on the screen 131. [ Here, the "address" is understood as information on a position in a building where the indoor unit is installed.

After registering the master indoor unit 31 in the above-described manner, the slave indoor units 32, 33, 34, and 35 linked to the master indoor unit can be registered.

In detail, when the slave indoor unit setting display unit 134 displayed on the main screen display unit 130 is pressed and the "edit device" button is selected, the device edit display unit 150 shown in FIG. 7 may pop up.

It is possible to select one or more indoor units among the indoor units displayed in the unregistered device list 152 and move the registered indoor unit to the registered device list 151 by pressing the register button 153 as in the case of registering the master indoor unit.

The registered device list 151 displays a list of slave indoor units selected for registration, and the non-registered device list 152 displays a list of slave indoor units that are not registered.

8, the main screen 131 displays information on indoor units registered as output condition indoor units, that is, slave indoor units (32, 33, 34, 35), example For example, "type "," device name ", and "address"

9, when the "Apply" button provided on the main screen display unit 130 is pressed after registering the master indoor unit (input condition indoor unit) and the slave indoor unit (output condition indoor unit) in this way, The list of the indoor units to be interlocked with each other is displayed.

For example, a list of input condition indoor units is displayed on the upper part of the main screen 131, and a list of output condition indoor units is displayed below the main screen 131.

FIG. 10 is a view showing operation information of the master indoor unit and the slave indoor unit through the control system according to the embodiment of the present invention.

4 to 9, when the registration of the master indoor unit and the slave indoor unit is completed, the main screen display unit 130 displays information on the operation of the master and slave indoor units that are interlocked with each other.

Operation information of the master indoor unit and the slave indoor unit may be displayed on the display unit 110 of the first control device 100 so that monitoring can be performed.

10, the main screen display unit 130 of the display unit 110 displays operation information or setting information of the master indoor unit information display unit 161 and the slave indoor unit, And a slave indoor unit information display section 162 for displaying the slave indoor unit information.

For example, in the main screen display unit 130, information indicating that a total of fifteen indoor units are grouped as a "replica pattern group" and that the fifteen indoor units are operating can be further displayed.

The operation information of the master indoor unit and the operation information of the slave indoor unit displayed on the slave indoor unit information display unit 162 displayed on the master indoor unit information display unit 161 are configured identically.

That is, the operation information of the slave indoor unit, which is displayed on the slave indoor unit information display unit 162, is set as it is by duplicating the operation information of the master indoor unit displayed on the master indoor unit information display unit 161.

For example, in the master indoor unit information display unit 161, the master indoor unit performs the heating operation while the current temperature of the indoor space is 23 ° C, and the desired temperature is set to 20 ° C. Then, in the slave indoor unit information display unit 162, setting information of the master indoor unit is replicated, and the slave indoor unit performs the heating operation while the current temperature of the indoor space is 23 DEG C, and the desired temperature is set to 20 DEG C .

That is, the slave indoor unit registered as the "copy pattern group " is controlled so as to follow the operation information or the setting information of the master indoor unit.

In this regard, possible scenarios are described.

[First scenario]

If the master indoor unit is performing the cooling operation toward the predetermined desired temperature even if the control command is input to stop the operation of the one indoor unit among the plurality of slave indoor units through the first controller 100, Together with the master indoor unit, performs the cooling operation toward the predetermined desired temperature.

In detail, when a control command is inputted to stop the operation of the one indoor unit, the one indoor unit is stopped according to the control command. The state of the indoor unit that is inactivated may be monitored through the display unit 110. [ The first controller 100 recognizes the operation of the indoor unit and controls the operating state of the indoor unit to be the same as that of the master indoor unit.

When a predetermined time (about 5 to 10 seconds) elapses after a control command for stopping operation of the one indoor unit is inputted and the one indoor unit is stopped, the one indoor unit duplicates the operation information of the master indoor unit, As shown in FIG.

11 is a flowchart showing a pattern copying method of a control system according to an embodiment of the present invention. An operation method of the control system according to the present embodiment will be described with reference to Fig.

A replica pattern is selected as an interlocking method of a plurality of indoor units, and one master indoor unit and one or more slave indoor units of a plurality of indoor units are grouped by using the process described with reference to FIG. 4 to FIG. The grouped master and slave indoor units are interlocked with each other in accordance with a reproduction pattern in which the operation information of the slave indoor unit follows the operation information of the master indoor unit (S11).

The operation information of the indoor units grouped into the replica pattern, that is, the master indoor unit and the slave indoor units, can be monitored through the first control unit 100. The monitored state is as described in Fig. The operation information of the master indoor unit among the indoor units grouped in the replica pattern can be monitored through the second control unit 101 (S12).

During the operation and monitoring of the master and slave indoor units, it is checked whether the operation information or the setting information of the master indoor unit is changed. For example, the operation information of the master indoor unit may be changed through the first control device 100 or the second control device 101.

When the operation information of the master indoor unit is changed, the slave indoor units duplicate the changed operation information of the master indoor unit and receive the same. Therefore, the slave indoor units can be operated under the same operating conditions as the master indoor unit (S13, S14, S15).

Meanwhile, during the operation and monitoring of the master and slave indoor units, it is recognized whether the operation information of the slave indoor unit is changed, that is, whether the operation information of the slave indoor unit is changed or not.

When the operation information of the slave indoor unit is different from the operation information of the master indoor unit, the slave indoor unit is changed again after the lapse of the set time so as to become the same as the operation information of the master indoor unit.

In detail, when the operation information of the slave indoor unit is different from the operation information of the master indoor unit, the changed operation information is monitored through the first control unit 100. The first controller 100 may send a control command to the slave indoor unit so that the operation information of the slave indoor unit becomes identical to the operation information of the master indoor unit based on the monitored information.

Accordingly, when about 5 to 10 seconds elapses after the operation information of the slave indoor unit is changed to be different from the operation information of the master indoor unit, the operation information of the slave indoor unit may be controlled to be the same as the operation information of the master indoor unit (S16).

According to such an operating method, since a plurality of slave indoor units can be operated by replicating operation information of the master indoor unit, there is no need to connect the control unit and the indoor units in order to individually control the operation of the plurality of indoor units. In addition, convenience for the user to control a plurality of indoor units can be increased.

12 is a diagram illustrating a process in which a pattern is copied when a command is input from a central control unit according to an embodiment of the present invention. Referring to FIG. 12, the operation according to the replica pattern when a command for operating the indoor unit is input from the first controller 100, that is, the central controller according to the embodiment of the present invention will be described.

A predetermined control command may be transmitted from the first controller 110 to the master indoor unit 31 among the plurality of indoor units.

More specifically, the first control unit 110 transmits a first control command to the outdoor unit 20 through the first communication line 210, and the outdoor unit 20 transmits the first control command to the master indoor unit 31) of the first control command (B). Accordingly, the master indoor unit 31 can operate according to the operation information corresponding to the first control command.

In order to apply the replica pattern to the plurality of slave indoor units 32, 33, 34, and 35, the first control unit 110 is connected to the outdoor unit 20 through the first communication line 210, (C), and the outdoor unit (20) transmits the second control command to the plurality of slave indoor units (32, 33, 34, 35) (D).

The first control unit 110 may transmit the second control command to the outdoor unit 20 after a predetermined time has elapsed after the first control unit 110 transmits the first control command.

Here, the same operation information may be included in the first control command and the second control command. Accordingly, the plurality of slave indoor units (32, 33, 34, 35) can operate according to the same operation information as the master indoor unit (31).

The operation information of the master indoor unit 31 and the plurality of slave indoor units 32, 33, 34, and 35 may be monitored through the first control unit 100. The operation information of the master indoor unit 31 may be monitored by the second control unit 101 through the third communication line 230 (E).

Meanwhile, when the operation information of the master indoor unit 31 is to be changed, the changed control command can be inputted through the first control device 100 or the second control device 101.

When the control command including the predetermined operation information is transmitted from the first control device 100 to the master indoor unit 31, a control command including the operation information is transmitted to the slave indoor units 32 and 33 , 34, 35) so that the master and slave indoor units (31, 32, 33, 34, 35) can be operated according to the same operation information, so that the control method can be easily implemented.

FIG. 13 is a diagram illustrating a process in which a pattern is copied when an instruction is input from a remote controller according to an embodiment of the present invention. Referring to FIG. 13, the operation according to the reproduction pattern when a command for operating the indoor unit is input from the second control device 101, that is, the remote controller according to the embodiment of the present invention will be described.

A predetermined control command may be transmitted from the second control device 101 to the master indoor unit 31 among the plurality of indoor units.

In detail, the second control device 101 transmits a first control command to the master indoor unit 31 through the third communication line 210 (A '), and the outdoor unit 20 transmits the first control command to the master indoor unit 31 (B ') that the first control command is input to the master indoor unit 31 through the first communication line 220 and the second control line (C').

The master indoor unit 31 can operate according to the operation information corresponding to the first control command.

In order to apply the replica pattern to the plurality of slave indoor units 32, 33, 34 and 35, the first control unit 110 controls the outdoor unit 20 via the first communication line 210, (D '), and the outdoor unit 20 transmits the second control command to the plurality of slave indoor units (32, 33, 34, 35) (E').

Here, the first control command and the second control command may include the same operation information. Accordingly, the plurality of slave indoor units (32, 33, 34, 35) can operate according to the same operation information as the master indoor unit (31).

The operation information of the master indoor unit 31 and the plurality of slave indoor units 32, 33, 34, and 35 may be monitored through the first control unit 100. The operation information of the master indoor unit 31 can be monitored by the second control unit 101 via the third communication line 230 (F ').

Meanwhile, when the operation information of the master indoor unit 31 is to be changed, the changed control command can be inputted through the first control device 100 or the second control device 101.

When the control command including the predetermined operation information is transmitted from the second control device 101 to the master indoor unit 31, the first control device 100 receives the control command including the operation information from the first control device 100 Is transmitted to the plurality of slave indoor units (32, 33, 34, 35), and the master and slave indoor units (31, 32, 33, 34, 35) There is an advantage that it can be.

10: Control system of the air conditioner 20:
30: indoor unit 31: master indoor unit
32, 33, 34, 35: slave indoor unit 100: first control unit
101: second control device 110:
120: menu display part 130: main screen display part
131: Main screen 132: Pattern setting display
133: master indoor unit setting display unit 134: slave indoor unit setting display unit
150: device edit display section 161: master indoor unit information display section
162: slave indoor unit information display unit 210: first communication line
220: second communication line 230: third communication line

Claims (13)

1. A control system for an air conditioner comprising at least one outdoor unit and a plurality of indoor units,
A first controller having a display unit for displaying information on operation of the plurality of indoor units; And
A second controller for monitoring operation information of the master indoor unit among the plurality of indoor units;
A third communication line communicatively connecting the master indoor unit from the second control unit to transfer the first control command from the second control unit to the master indoor unit;
A first communication line communicatively connecting the outdoor unit and the first control unit to transfer the first control command from the first control unit to the outdoor unit; And
And a second communication line communicatively connecting the outdoor unit and the plurality of indoor units to transmit the first control command from the outdoor unit to the plurality of indoor units,
When a first control command including setting operation information is transmitted from the first control device or the second control device through the first communication line or the second communication line to the master indoor unit,
A second control command corresponding to the first control command is transmitted to the slave indoor unit among the plurality of indoor units through the second communication line,
Wherein the communication between the master indoor unit and the slave indoor units is limited. The method according to claim 1,
Wherein the operation information included in the second control command includes:
Wherein the first control command is the same as the setting operation information included in the first control command. The method according to claim 1,
When the first control command is transmitted from the first controller to the master indoor unit,
Wherein the first control device transmits the second control command to the slave indoor unit after the set time has elapsed. delete delete delete The method according to claim 1,
Wherein the first control device is a central control device capable of monitoring the operation of the master indoor unit and the slave indoor unit and controlling the operation thereof. The method according to claim 1,
Wherein the second control device is a remote control device capable of monitoring the operation of the master indoor unit and controlling the operation thereof. The method according to claim 1,
And the second control device is limited in communication connection with the slave indoor unit. Grouping one master indoor unit and one or more slave indoor units among a plurality of indoor units;
Transmitting a first control command including setting operation information to the master indoor unit;
Operating the master indoor unit according to the setting operation information; And
And transmitting a second control command to the slave indoor unit,
Wherein the operation information included in the second control command is the same as the setting operation information included in the first control command,
Wherein the communication between the master indoor unit and the slave indoor units is limited, and the slave indoor units receive control commands only from the outdoor unit. 11. The method of claim 10,
An outdoor unit communicatively connected to the master indoor unit and the slave indoor unit; And
And a central control device communicatively connected to the outdoor unit,
Wherein the first control command and the second control command are transmitted from the central control device. 11. The method of claim 10,
An outdoor unit communicatively connected to the master indoor unit and the slave indoor unit;
A central control device communicatively connected to the outdoor unit; And
Further comprising a remote controller connected to the master indoor unit communication,
Wherein the first control command is transmitted from the remote controller, and the second control command is transmitted from the central control device. 11. The method of claim 10,
Further comprising the step of, when the operation information of the master indoor unit is changed, the operation information of the slave indoor unit is formed by replicating the operation information of the master indoor unit.

Images