FIELD OF THE INVENTION
[0001] The present invention relates to an air conditioner and an operating method thereof,
and more particularly, to an air conditioner and an operating method thereof which
can effectively adjust a plurality of schedules set for each of a plurality of units
in an air conditioner if there is a schedule conflict and can thus efficiently drive
the units according to corresponding schedules.
BACKGROUND
[0002] An air conditioner includes various units for performing cooling, heating and air
purification in order to establish a fine indoor environment. An air conditioner ejects
cool or warm air into a room and purifies a room. An air conditioner may be divided
into an indoor unit including an indoor heat exchanger and an outdoor unit including
a compressor and an outdoor heat exchanger and may be driven by controlling power
supplied to the compressor or the indoor or outdoor heat exchanger.
[0003] An air conditioner may include a plurality of outdoor units and a plurality of indoor
units, which are connected to the outdoor units. In this case, one or more of the
outdoor units may be driven according to the number of indoor units being driven,
and may perform a cooling or heating operation according to a requested operating
state.
[0004] An air conditioner may also include a remote control which monitors and controls
one or more units included in the air conditioner. The remote control sets a schedule
for each of the units of the air conditioner and thus controls a corresponding unit
to be driven according to the schedule. The remote control, however, may not properly
respond to the situations when it is impossible to set a plurality of schedules at
the same time and when there is a schedule conflict.
SUMMARY OF THE INVENTION
[0005] The present invention provides an air conditioner and an operating method thereof,
in which a plurality of schedules can be effectively set for each of a plurality of
units in an air conditioner with a schedule conflict by making time periods reserved
for existing schedules unavailable for new schedules or by either incorporating conflicting
schedules, if any, into a single schedule or selecting one of the conflicting schedules.
[0006] According to an aspect of the present invention, there is provided an air conditioner
including at least one outdoor unit; a plurality of indoor units which are connected
to the outdoor unit; and a remote control which sets a schedule for at least one of
the indoor units, wherein, if a second schedule corresponding to a second time period
is input for one of the indoor units for which a first schedule corresponding to a
first time period is set in advance and the first and second time periods at least
partially overlap with each other, the remote control creates a third schedule based
on the first and second schedules and controls the corresponding indoor unit to be
driven according to the third schedule.
[0007] The remote control may create the third schedule by incorporating the first and second
schedules.
[0008] The remote control may select one of the first and second schedules and set the selected
schedule as the third schedule.
[0009] According to another aspect of the present invention, there is provided an operating
method of an air conditioner, in which schedules set for a plurality of indoor units
are controlled, the operating method including setting a first schedule corresponding
to a first time period for one of the indoor units; if a second schedule corresponding
to a second time period is input for the indoor unit for which the first schedule
is set and the second time period at least partially overlaps with the first time
period, creating a third schedule based on the first and second schedules; and controlling
the corresponding indoor unit to be driven according to the third schedule..
[0010] According to the present invention, it is possible to schedule various schedules
for each unit in an air conditioner. According to the present invention, it is possible
to prevent a schedule conflict by making time periods reserved for existing schedules
unavailable for new schedules or by either incorporating conflicting schedules, if
any, into a single schedule or selecting one of the conflicting schedules. Therefore,
it is possible to improve the safety of the control of an air conditioner, to control
an air conditioner in a sophisticated manner, involving the application of a plurality
of schedules, and thus to improve user convenience. In addition, it is possible to
facilitate the application of schedules and improve the efficiency of the control
of an air conditioner by using schedule patterns.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The above and other features and advantages of the present invention will become
more apparent by describing in detail preferred embodiments thereof with reference
to the attached drawings in which:
FIG. 1 illustrates a schematic diagram of an air conditioner according to an embodiment
of the present invention;
FIG. 2 illustrates a block diagram of a remote control illustrated in FIG. 1;
FIG. 3 illustrates a diagram of a schedule management screen of the remote control
illustrated in FIG. 2;
FIG. 4 illustrates a diagram of a schedule management screen when the remote control
illustrated in FIG. 2 sets a plurality of schedules;
FIG. 5 illustrates diagrams for explaining how the remote control illustrated in FIG.
2 incorporates conflicting schedules;
FIG. 6 illustrates diagrams for explaining how the remote control illustrated in FIG.
2 selects a schedule;
FIG. 7 illustrates a diagram of a schedule management screen on which a message indicating
that there is a schedule conflict is displayed;
FIG. 8(a) illustrates a diagram of a schedule management screen on which a message
for allowing a user to select one of a plurality of conflicting schedules that conflict
with each other is displayed;
FIG. 8(b) illustrates a diagram of a schedule management screen on which a message
for allowing a user to edit one of a plurality of schedules that conflict with each
other is displayed;
FIG. 9 illustrates a flowchart of the setting of a schedule according to priority
levels, as performed by the remote control illustrated in FIG. 2;
FIG. 10 illustrates a flowchart of the setting of a schedule according to user input,
as performed by the remote control illustrated in FIG. 2; and
FIG. 11 illustrates a flowchart of the setting of a schedule while preventing a schedule
conflict, as performed by the remote control illustrated in FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION
[0012] The present invention will hereinafter be described in detail with reference to the
accompanying drawings in which exemplary embodiments of the invention are shown.
[0013] FIG. 1 illustrates a schematic diagram of an air conditioner according to an embodiment
of the present invention. Referring to FIG. 1, the air conditioner includes one or
more indoor units I11 through I13 and I21 through I23 and one or more outdoor units
O1 and 02. The outdoor unit O1 is connected to the indoor units I11 through I13, and
the outdoor unit 02 is connected to the indoor units I21 through I23. Each of the
outdoor units O1 and O2 includes a compressor and a heat exchanger. The air conditioner
also includes a remote control RC, which is connected to the outdoor units O1 and
O2 and the indoor units I11 through I13 and I21 through I23 and monitors and controls
the operating state of the air conditioner, and a local controller R, which is connected
at least one of the indoor units I11 through I13 and I21 through I23.
[0014] The air conditioner may also include an air ventilator, a humidifier, an air purifier,
and a heater. In this case, the air ventilator, the humidifier, the air purifier,
and the heater may all be controlled by the remote control RC. In the embodiment,
only the indoor units I11 through I13 and I21 through I23 and the outdoor units O1
and O2 are connected to the remote control RC, but the present invention is not restricted
to this.
[0015] One or more indoor units may be provided to each room. The outdoor units O1 and O2
may be driven upon the request of at least one of the indoor units I11 through I13
and I21 through I23. When the indoor units I11 through I13 and I21 through I23 are
driven, the cooling/heating capacity of the air conditioner varies, and thus, the
number of outdoor units that need to be driven and the number of compressors that
need to be driven vary.
[0016] Each of the outdoor units O1 and O2 includes a compressor which is provided with
a coolant and compresses the coolant; an outdoor heat exchanger which exchanges heat
between the coolant and outdoor air; an accumulator which extracts a gas coolant from
a coolant supplied thereto and supplies the gas coolant to the compressor; and a 4-way
valve which selects a coolant path for a heating operation. Each of the outdoor units
O1 and O2 may also include a high-pressure sensor which measures the pressure of a
coolant ejected from the compressor; and a low-pressure sensor which measures the
pressure of a coolant supplied to the compressor. Each of the outdoor units O1 and
O2 may also include a plurality of sensors, valves, and an oil collector. Detailed
descriptions of the elements of each of the outdoor units O1 and O2 will be skipped.
[0017] Each of the indoor units I11 through I13 and I21 through I23 includes an indoor heat
exchanger, an indoor fan, an expansion valve, which expands a coolant supplied by
the outdoor unit O1 or 02, and a plurality of sensors. The outdoor units O1 and O2
and the indoor units I11 through I13 and I21 through I23 are connected by coolant
pipes. A heating or cooling operation is performed according to the flow of a coolant
between the outdoor units O1 and O2 and the indoor units I11 through I13 and I21 through
I23. The outdoor units O1 and O2 and the indoor units I11 through I13 and I21 through
I23 may transmit data to or receive data from one another by using a predetermined
communication method.
[0018] The remote control RC transmits data to or receives data from the outdoor units O1
and O2 and the indoor units I11 through I13 and I21 through I23, displays the operating
states of the outdoor units O1 and O2 and the indoor units I11 through I13 and I21
through I23 with the aid of a display unit, and thus enables a user to monitor the
outdoor units O1 and O2 and the indoor units I11 through I13 and I21 through I23.
The remote control RC generates a control command for controlling the operations of
the outdoor units O1 and O2 and the indoor units I11 through I13 and I21 through I23
according to user input, and thus controls the outdoor units O1 and O2 and the indoor
units I11 through I13 and I21 through I23 to be driven according to a predetermined
schedule. The air conditioner may include more than one remote control RC.
[0019] The remote control RC may set a plurality of schedules for the outdoor units O1 and
O2 and the indoor units I11 through I13 and I21 through I23 and control the outdoor
units O1 and O2 and the indoor units I11 through I13 and I21 through I23 according
to the schedules. The remote control RC may set a plurality of schedules that do not
conflict with each other in the first place. Alternatively, the remote control RC
may set a plurality of schedules and then incorporate a number of conflicting schedules,
if any, into a single schedule.
[0020] FIG. 2 illustrates a block diagram of the remote control RC illustrated in FIG. 1.
Referring to FIG. 2, the remote control RC includes a control unit 11, a data unit
13, a communication unit 14, an input unit 12 and a display unit 15.
[0021] The input unit 12 may include at least one button, a touch input unit or both. The
input unit 12 applies a user command, which is input to the remote control RC through
the manipulation of the button or the touch input unit, to the control unit 11.
[0022] The display unit 15 includes a tool for outputting text data or images. The display
unit 15 displays the user command input by the input unit 12 on a screen or a screen
image corresponding to the user command input by the input unit 12 on the screen.
The display unit 15 displays information regarding the operating states of the indoor
units I11 through I13 and I21 through I23 on the screen. The display unit 15 also
displays a menu for controlling the indoor units I11 through I13 and I21 through I23
and a menu for setting schedules on the screen.
[0023] The air conditioner may also include a speaker, which outputs alarm sounds and voice
messages, and a lamp, which is turned on or off.
[0024] The data unit 13 stores data received by the input unit 12, and also stores data
received from the indoor units I11 through I13 and I21 through I23 and the outdoor
units O1 and O2 through the communication unit 14 and control data and setting data
for controlling the indoor units I11 through I13 and I21 through I23 and the outdoor
units O1 and 02. The data unit 13 also stores schedule data regarding a schedule set
for each of the units in the air conditioner.
[0025] The communication unit 14 may include a plurality of communication modules which
transmit data or receive data by using a predetermined communication method. The communication
unit 14 may receive data from the outdoor units O1 and O2 and the indoor units I11
through I13 and I21 through I23 by using the predetermined communication method, and
apply the received data to the control unit 11.
[0026] The control unit 11 controls the input and output of data by controlling data transmitted
through the communication unit 14 and controlling data received by the input unit
12 to be output through the output unit 15. The control unit 11 generates a control
command for controlling the operations of the indoor units I11 through I13 and I21
through I23 and the outdoor units O1 and O2 in response to a user command received
by the input unit 12 and transmits the control command to the indoor units I11 through
I13 and I21 through I23 and the outdoor units O1 and O2 through the communication
unit 14.
[0027] In addition, the control unit 11 sets a schedule for each of the indoor units I11
through I13 and I21 through I23 and the outdoor units O1 and O2 and transmits a control
command to the indoor units I11 through I13 and I21 through I23 and the outdoor units
O1 and O2 through the communication unit 15 so that the indoor units I11 through I13
and I21 through I23 and the outdoor units O1 and O2 can be driven according to respective
corresponding schedules set by the control unit 11. The control unit 11 may set more
than one schedule for each of the indoor units I11 through I13 and I21 through I23
and the outdoor units O1 and O2, and store schedules in the data unit 13. If there
are conflicting schedules, the control unit 11 may select one of the conflicting schedules
or incorporate the conflicting schedules into a single schedule. Alternatively, the
control unit 11 may set a plurality of schedules that do not conflict with each other
in the first place.
[0028] More specifically, if there are conflicting schedules, the control unit 11 may select
whichever of the conflicting schedules is set first or last or incorporate the conflicting
schedules. In addition, if there are conflicting schedules, the control unit 11 may
generate a notice message indicating that there are conflicting schedules, and display
the notice message with the aid of the display unit 15 so that one of the conflicting
schedules can be selected according to user input received by the input unit 12.
[0029] The control unit 11 may divide the indoor units I11 through I13 and I21 through I23
into one or more schedule groups, each having one or more indoor units that are driven
according to the same schedule. The number of schedules groups is not greater than
the number of indoor units, and none of the indoor units I11 through I13 and I21 through
I23 are classified into more than one schedule group at the same time.
[0030] The control unit 11 may set a plurality of schedules and set one of the schedules
as a priority schedule. Then, the control unit 11 may control the priority schedule
to be executed first. If the priority schedule conflicts with other schedules, the
control unit 11 may control the indoor units I11 through I13 and I21 through I23 and
the outdoor units O1 and O2 to be driven according to the priority schedule.
[0031] The remote control RC may set a plurality of schedules that do not conflict with
each other in the first place. More specifically, once a schedule is set, the control
unit 11 of the remote control RC may prevent the setting of a new schedule if the
new schedule conflicts with the existing schedule. For example, the control unit 11
of the remote control RC may inactivate a time period reserved for the existing schedule
and thus make the corresponding time period unavailable for a new schedule.
[0032] FIG. 3 illustrates a diagram of a schedule management screen of the remote control
RC illustrated in FIG. 2. Referring to FIG. 3, when a schedule menu is called through
the input unit 12, the remote control RC controls a schedule setting menu for setting
a schedule to be displayed on the screen of the display unit 15.
[0033] The schedule setting menu includes a schedule group menu D10, which is disposed on
one side of the schedule setting menu and displays a schedule group including one
or more indoor units for which a schedule is to be set. The schedule group is a group
of one or more indoor units that can be driven according to the same schedule. The
schedule group may be configured according to a user command regardless of how indoor
units are connected to an outdoor unit and where the indoor units are located. The
indoor units included in the schedule group may all perform the same function at a
predefined moment of time according to a schedule set for the schedule group.
[0034] A schedule pattern menu D20 for applying a schedule pattern to the schedule group
is displayed below the schedule group menu D10. A period setting menu D40 for setting
a period of time during which a schedule pattern selected from the schedule pattern
menu D20 is to be applied is displayed on the other side of the schedule setting menu.
A time menu for selecting a certain date or setting a special schedule for a certain
date may be disposed above the schedule pattern menu D20 as a calendar, but the present
invention is not restricted to this. The time menu represents a date (day, week, month
and year).
[0035] The schedule setting menu also includes a schedule information menu D30 which displays
schedule information regarding a number of schedules set for a schedule group selected
by a user or a number of schedules corresponding to a schedule pattern selected by
the user and or a schedule.
[0036] FIG. 4 illustrates a diagram of a schedule management screen when a plurality of
schedules is set by the remote control RC illustrated in FIG. 2. Referring to FIG.
4, when schedules A through D are set for a predetermined schedule group by the remote
control RC, the control unit 11 controls the display unit 15 to display a plurality
of pieces of schedule information D51 through D54 respectively corresponding to schedules
A through D, i.e., in a schedule information menu.
[0037] First and second time periods P11 and P12 are reserved for schedule A, and third
and fourth time periods P21 and P22 are reserved for schedule B. As a result, schedules
A and B partially conflict with each other.
[0038] Schedule C does not conflict with schedule B, but conflicts with schedule A. When
there are conflicting schedules set, the control unit 11 may incorporate the conflicting
schedules into a single schedule.
[0039] Alternatively, the control unit 11 may set a plurality of schedules while preventing
the schedules from conflicting with one another. For example, since a fifth time period
P32 is reserved for schedule C, the control unit 11 may control schedule C to be able
to be modified and make the fifth time period P32 unavailable for other schedules.
[0040] FIG. 5 illustrates a diagram for explaining how the remote control RC illustrated
in FIG. 2 incorporates a plurality of schedules set for a schedule group including
one or more indoor units when there is a conflict between the schedules. Referring
to FIG. 5, a period between a zeroth time t0 and a second time t2 is reserved for
a first schedule S1, and a period between a first time t1 and a third time t3 is reserved
for a second schedule S2. Assuming the first schedule S1 has been set earlier than
the second schedule S2, the control unit 11 may incorporate the first and second schedules
S1 and S2 into a third schedule S3 while prioritizing the first schedule S1, as illustrated
in FIG. 5(a). A portion of the third schedule S3 corresponding to the period between
the zeroth time t0 and the second time t2 is the same as the first schedule S1, and
the remaining portion of the third schedule S3 corresponding to the period between
the second time t2 and the third time t3 is the same as a portion of the second schedule
S2 corresponding to the period between the second time t2 and the third time t3.
[0041] Alternatively, referring to FIG. 5(b), the control unit 11 may incorporate the first
and second schedules S1 and S2 into a fourth schedule S4 while prioritizing the second
schedule S2. A portion of the fourth schedule S4 corresponding to the period between
the zeroth time t0 and the first time t1 is the same as the first schedule S1, and
the remaining portion of the third schedule S3 corresponding to the period between
the second time t2 and the third time t3 is the same as a portion of the second schedule
S2 corresponding to the period between the second time t2 and the third time t3.
[0042] Alternatively, referring to FIG. 5(c), the control unit 11 may create third and fourth
schedules S3 and S4 based on the first and second schedules S1 and S2 and set one
of the third and fourth schedules S3 and S4 according to a user command input thereto.
[0043] FIG. 6 illustrates a diagram for explaining how the remote control RC illustrated
in FIG. 2 selects a schedule. Referring to FIG. 6, the remote control RC may control
a plurality of schedules, including first and second schedules S1 and S2. If there
is a conflict between the first and second schedules S1 and S2, the control unit 11
may select one of the first and second schedules S1 and S2, instead of incorporating
the first and second schedules S1 and S2, as illustrated in FIG. 5.
[0044] That is, the control unit 11 may select the first schedule S1 over the second schedule
S2, as illustrated in FIG. 6 (a), or select the second schedule S2 over the first
schedule S1, as illustrated in FIG. 6(b).
[0045] FIG. 7 illustrates a diagram of a schedule management screen on which a message indicating
that there is a schedule conflict is displayed. FIG. 8(a) illustrates a diagram of
a schedule management screen on which a message for allowing a user to select one
of a plurality of conflicting schedules that conflict with each other is displayed,
and FIG. 8(b) illustrates a diagram of a schedule management screen on which a message
for allowing a user to edit one of a plurality of schedules that conflict with each
other is displayed.
[0046] Referring to FIG. 7, if there is a conflict between a plurality of schedules set
for a predetermined schedule group, the remote control RC may display a message indicating
that there is a schedule conflict on a schedule setting menu. The remote control RC
may also display a button for editing schedules along with the message so that a user
can edit conflicting schedules.
[0047] The remote control RC may output a message for allowing a user to select one of a
plurality of schedules that conflict with each other. For example, referring to FIG.
8(a), if there are two schedules set for indoor unit 1 and the two schedules conflict
with each other, the remote control RC may allow the user to select one of the two
schedules. If one of the two schedules is selected according to a user command input
to the remote control RC, the remote control RC may set the selected schedule as a
final schedule for indoor unit 1, instead of incorporating the two schedules into
a single schedule and setting the single schedule as the final schedule for indoor
unit 1.
[0048] Alternatively, the remote control RC may incorporate a plurality of schedules that
conflict with each other into a single schedule. For example, referring to FIG. 8(b),
if schedules E and F conflict with each other during a period from 10 : 00 to 12 :
30, the remote control RC may control only one of schedules E and F to be set for
the period from 10:00 to 12:30, while generally maintaining the setting of schedules
E and F.
[0049] The operation of the remote control RC illustrated in FIG. 2 will hereinafter be
described in further detail.
[0050] FIG. 9 illustrates a flowchart of the setting of a schedule according to priority,
as performed by the remote control RC illustrated in FIG. 2. Referring to FIG. 9,
when a schedule setting menu for setting one or more indoor units for a schedule group
including one or more indoor units is called, the remote control RC displays the schedule
setting menu (S210).
[0051] Then, a number of indoor units and/or a number of schedule groups that can be selected
are displayed on a screen (S220). If an indoor unit or a schedule group is selected
from the screen, a menu for inputting a schedule for the selected indoor unit or the
selected schedule group is displayed on the screen, and a first schedule for the selected
indoor unit or the selected schedule group is received through the input unit 12 in
response to a user command (S230).
[0052] The control unit 11 compares the first schedule with a second schedule, which has
been received earlier than the first schedule and has already been set, and determines
whether there is a schedule conflict (S240).
[0053] If there is a schedule conflict and new schedules are prioritized over existing schedules
(S250), incorporates the first and second schedules into a single schedule while prioritizing
the first schedule over the second schedule (S280) . On the other hand, if existing
schedules are prioritized over new schedules (S260), the remote control RC incorporates
the first and second schedules into a single schedule while prioritizing the second
schedule over the first schedule (S270). If neither new schedules nor existing schedules
are prioritized, the remote control RC cancels the first schedule and allows the setting
of a schedule according to a user command(S270).
[0054] If there is no schedule conflict, the remote control RC stores the first schedule
(S300). Thus, the first and second schedules can both be set.
[0055] FIG. 10 illustrates a flowchart of the setting of a schedule according to user input,
as performed by the remote control RC illustrated in FIG. 2. Referring to FIG. 10,
when a first schedule is inputted(S310), the remote control RC determines whether
there is a schedule conflict by comparing the first schedule with a second schedule,
which is an existing schedule (S320). If there is a schedule conflict, the remote
control RC displays a message on a screen, indicating that there is a schedule conflict
(S330). If a user selects the first schedule over the second schedule, the control
unit 11 sets the first schedule (S380). On the other hand, if the user selects the
second schedule over the first schedule, the control unit 11 sets the second schedule
(S390).
[0056] If the user selects neither the first schedule nor the second schedule and chooses
to edit the first and second schedules, the remote control RC displays a menu for
editing the first and second schedules on the screen and thus allows the user to edit
the first and second schedules (S410). Thereafter, the remote control RC determines
whether there is a conflict between the edited first and second schedules, and allows
the user to choose one of the edited first and second schedules (S320 through S360).
[0057] If the user selects neither the first schedule nor the second schedule and chooses
not to edit the first and second schedules, the remote control RC cancels the first
schedule (S370).
[0058] If there is no conflict between the first and second schedules (S320) or if one of
the first and second schedules is selected by the user (S340 or S350), the remote
control RC stores the first schedule or whichever of the first and second schedules
is selected by the user (S400).
[0059] FIG. 11 illustrates a flowchart of the setting of a schedule while preventing a schedule
conflict, as performed by the remote control RC illustrated in FIG. 2. Referring to
the method illustrated in FIG. 11, if a schedule is input (S430), the remote control
RC determines whether there is a conflict between the input schedule and one or more
existing schedules (S440). If there is a schedule conflict, the remote control RC
outputs a message indicating that there is a schedule conflict (S450).
[0060] If a user chooses to input a new schedule (S460), the method returns to operation
S430. If there is no schedule conflict, the remote control RC sets and stores the
input schedule (S480). If the user chooses not to input a new schedule, the remote
control RC cancels the input schedule (S470).
[0061] In short, if there is a conflict between the input schedule and the existing schedules,
the remote control RC requires the user to input a new schedule or cancels the input
schedule.
[0062] In addition, the remote control RC may prevent a new schedule from being set if the
new schedule conflicts with any one of the existing schedules. That is, the remote
control RC may inactivate time periods reserved for the existing schedules so that
a new schedule can be prevented from being set for any one of the time periods.
[0063] While the present invention has been particularly shown and described with reference
to exemplary embodiments thereof, it will be understood by those of ordinary skill
in the art that various changes in form and details may be made therein without departing
from the scope of the present invention as defined by the following claims.
1. An air conditioner comprising:
at least one outdoor unit O1, 02;
a plurality of indoor units I11 to I13, I21 to I23 which are connected to the outdoor
unit; and
a remote control RC which sets a schedule for at least one of the indoor units,
wherein, if a second schedule S2 corresponding to a second time period is input for
one of the indoor units for which a first schedule S1 corresponding to a first time
period is set in advance and the first and second time periods at least partially
overlap with each other, the remote control RC creates a third schedule S3, S4 based
on the first and second schedules and controls the corresponding indoor unit to be
driven according to the third schedule.
2. The air conditioner of claim 1, wherein the remote control RC creates the third schedule
by incorporating the first and second schedules.
3. The air conditioner of claim 1, wherein the remote control RC selects one of the first
and second schedules and sets the selected schedule as the third schedule.
4. The air conditioner of claim 1, wherein the remote control RC outputs a first message
indicating an overlapping time period of the first and second time periods when the
second schedule is input.
5. The air conditioner of claim 4, wherein the remote control RC outputs a second message
for allowing the user to select one of the first and second schedules after outputting
the first message, and sets whichever of the first and second schedules is selected
according to a user command as the third schedule.
6. The air conditioner of claim 1, wherein the remote control RC cancels the second schedule
and allows the user to input a fourth schedule that does not conflict with the first
schedule.
7. The air conditioner of claim 6, wherein the remote control RC inactivates the first
time period and activates time periods yet to be reserved for schedules.
8. The air conditioner of claim 1, wherein, if a priority schedule is input for the indoor
unit for which the first schedule is set, the remote control RC ignores the first
schedule or the third schedule and controls the corresponding indoor unit to be driven
according to the priority schedule.
9. The air conditioner of claim 1, wherein the remote control RC divides the indoor units
into a number of schedule groups, each comprising one or more indoor units that are
driven according to the same schedule, and the number of schedule groups is smaller
than the number of indoor units included in the air conditioner.
10. An operating method of an air conditioner, in which schedules set for a plurality
of indoor units I11 to I13, I21 to I23 are controlled, the operating method comprising:
setting a first schedule corresponding to a first time period for one of the indoor
units;
if a second schedule corresponding to a second time period is input for the indoor
unit for which the first schedule is set and the second time period at least partially
overlaps with the first time period, creating a third schedule based on the first
and second schedules; and
controlling the corresponding indoor unit to be driven according to the third schedule.
11. The operating method of claim 10, wherein the creating the third schedule, comprises
creating the third schedule by incorporating the first and second schedules.
12. The operating method of claim 10, wherein the creating the third schedule, comprises
selecting one of the first and second schedules and setting the selected schedule
as the third schedule.
13. The operating method of claim 10, further comprising outputting a first message indicating
an overlapping time period of the first and second time periods after the second schedule
is input.
14. The operating method of claim 13, further comprising, after the outputting the first
message, outputting a second message for allowing the user to select one of the first
and second schedules,
wherein the creating the third schedule, comprises setting whichever of the first
and second schedules is selected according to a user command as the third schedule.