JP2023151030A - Air conditioner management device and air conditioner management program - Google Patents

Abstract

To provide an air conditioner management device and an air conditioner management program for receiving operation instructions for operation object machines selected out of a plurality of kinds of air conditioners.SOLUTION: An air conditioner management device 40 includes a selection reception unit 65a, an operation instruction reception unit 65b, and an output unit 65c so as to manage a plurality of kinds of air conditioners installed in a building to be managed having a plurality of rooms. The selection reception unit 65a receives first selection for selecting one or more rooms of the plurality of rooms as object rooms, and second selection for selecting any one kind of air conditioner of the plurality of kinds of air conditioners as an operation object machine. The operation instruction reception unit 65b receives an operation instruction for the operation object machine installed in the object room. The output unit 65c outputs the first selection and the second selection received by the selection reception unit 65a, and the operation instruction received by the operation instruction reception unit 65b.SELECTED DRAWING: Figure 2

Description

The present invention relates to an air conditioner management device and an air conditioner management program.

In the air conditioner management device described in Patent Document 1, a central management device of a hotel collectively transmits data indicating the set temperature of the air conditioner to the air conditioning controller of each guest room.

Japanese Patent Application Publication No. 7-280329

The air conditioner management device of Patent Document 1 cannot cope with a case where multiple types of air conditioners are installed in a building to be managed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner management device and an air conditioner management program that accept operation instructions for an operation target device selected from a plurality of types of air conditioners.

The air conditioner management device of the present invention is an air conditioner management device that manages multiple types of air conditioners installed in a building to be managed having multiple rooms, and includes a selection reception section and an operation instruction reception section. , and an output section. The selection reception unit includes a first selection of selecting one or more of the plurality of rooms as a target room, and a first selection of selecting one or more of the plurality of types of air conditioners as an operation target device. The second selection is accepted. The operation instruction receiving unit receives an operation instruction for the operation target device installed in the target room. The output unit outputs the first selection and the second selection received by the selection reception unit and the operation instruction received by the operation instruction reception unit.

The air conditioner management program of the present invention is an air conditioner management program that manages multiple types of air conditioners installed in a managed building having multiple rooms, and includes a selection reception section, an operation instruction reception section, and Make the computer function as an output unit. The selection reception unit includes a first selection of selecting one or more of the plurality of rooms as a target room, and a first selection of selecting one or more of the plurality of types of air conditioners as an operation target device. The second selection is accepted. The operation instruction receiving unit receives an operation instruction for the operation target device installed in the target room. The output unit outputs the first selection and the second selection received by the selection reception unit and the operation instruction received by the operation instruction reception unit.

According to the present invention, an air conditioner management device and an air conditioner management program are provided that accept operation instructions for an operation target device selected from a plurality of types of air conditioners.

1 is a block diagram showing an example of the configuration of a management system including an air conditioner management device according to an embodiment. FIG. 2 is a block diagram showing an example of the configuration of a server. FIG. 2 is a block diagram showing an example of the configuration of a management terminal. It is a figure showing an example of a device information management table. It is a figure showing an example of a room information management table. It is a figure showing an example of a sensor information management table. It is a figure showing an example of a management screen. It is a figure showing an example of a device list screen.

Embodiments of the present invention will be described with reference to the drawings. In addition, in the drawings, the same reference numerals are given to the same or corresponding parts, and the description will not be repeated.

First, with reference to FIG. 1, the configuration of a management system 100 including an air conditioner management device 40 according to an embodiment will be described. FIG. 1 is a block diagram showing an example of the configuration of a management system 100.

As shown in FIG. 1, the management system 100 has m (m is a positive integer) air conditioners 11 to 1m and n (n is a positive integer) air purifiers in a building to be managed. 21 to 2n. The m air conditioners 11 to 1m and the n air purifiers 21 to 2n correspond to an example of "multiple types of air conditioners."

The management system 100 further includes an air conditioner management device 40. The m air conditioners 11 to 1m and the n air purifiers 21 to 2n are connected to an air conditioner management device 40 via a network 30. The air conditioner management device 40 includes a server 41 and a management terminal 42. The server 41 and the management terminal 42 are connected to be able to communicate with each other.

Next, the configuration of the server 41 will be described with reference to FIGS. 1 and 2. FIG. 2 is a block diagram showing an example of the configuration of the server 41. As shown in FIG.

As shown in FIG. 2, the server 41 includes a communication section 50, a control section 60, and a storage section 70.

The communication unit 50 communicates with each of the m air conditioners 11 to 1m and the n air cleaners 21 to 2n via the network 30. The communication unit 50 also communicates with the management terminal 42 .

The storage unit 70 includes a storage device and stores data and computer programs. The storage unit 70 includes a main storage device such as a semiconductor memory and an auxiliary storage device such as a hard disk drive. The data stored in the storage unit 70 includes a device information management table 71a, a room information management table 71b, and a sensor information management table 72.

The control unit 60 includes a processor such as a CPU (Central Processing Unit). The processor of the control unit 60 controls each component of the server 41 by executing a computer program stored in the storage unit 70.

Next, the configuration of the management terminal 42 will be explained with reference to FIGS. 1 to 3. FIG. 3 is a block diagram showing an example of the configuration of the management terminal 42. As shown in FIG.

As shown in FIG. 3, the management terminal 42 includes an operation display section 80, a communication section 85, a control section 90, and a storage section 95.

The operation display unit 80 is an input and display device for operations by an administrator. The operation display section 80 includes a touch panel 81. The operation display section 80 may further include operation buttons. The operation display section 80 corresponds to an example of a "display section."

Communication unit 85 communicates with server 41 .

The storage unit 95 includes a storage device and stores data and computer programs. The storage unit 95 includes a main storage device such as a semiconductor memory.

Control unit 90 includes a processor such as a CPU. The processor of the control unit 90 controls each component of the management terminal 42 by executing a computer program stored in the storage unit 95. The control section 60 of the server 41 controls the operation of the operation display section 80 via the control section 90 of the management terminal 42 .

Next, the device information management table 71a and the room information management table 71b will be described with reference to FIGS. 2, 4, and 5. FIG. 4 is a diagram showing an example of the device information management table 71a. FIG. 5 is a diagram showing an example of the room information management table 71b.

As shown in FIG. 4, each data entry in the device information management table 71a includes information on device ID, device type, floor, room, setting content, device abnormality, and maintenance. The floor and room information corresponds to an example of "equipment information" indicating in which room in a managed building each of the plurality of air conditioners is installed, and is written by the administrator. The information on settings, equipment abnormalities, and maintenance corresponds to an example of "status information" indicating the equipment status of each of the plurality of air conditioners.

As shown in FIG. 5, each data entry in the room information management table 71b includes room, floor, and position information. The position information is an example of "position information" and is information representing the position of a room on the floor, and in the illustrated example, the direction in which the room is located is input. Location information is written by the administrator.

Next, the sensor information management table 72 will be explained with reference to FIGS. 2 and 6. FIG. 6 is a diagram showing an example of the sensor information management table 72.

As shown in FIG. 6, each data entry in the sensor information management table 72 includes information on device ID, room temperature, humidity, and air cleanliness. Information on room temperature, humidity, and air cleanliness corresponds to an example of "sensor information" detected by a sensor provided in each of a plurality of air conditioners.

As shown in FIG. 2, the processor of the control unit 60 includes a first acquisition unit 61, a second acquisition unit 62, a display control unit 63, an environment determination unit 64, a selection reception unit 65a, an operation instruction reception unit 65b, an output unit 65c, a third acquisition unit 66, a maintenance determination unit 67, and a report generation unit 68.

The first acquisition unit 61 acquires "device information" from the device information management table 71a.

The second acquisition unit 62 acquires "sensor information" from the m air conditioners 11 to 1m and the n air purifiers 21 to 2n. The “sensor information” acquired by the second acquisition unit 62 is written into the sensor information management table 72.

The display control unit 63 displays a room icon corresponding to one of the plurality of rooms on the operation display unit 80. The room icon includes "environment information" indicating the air environment of the room corresponding to the room icon, or "position information" indicating the position of the room corresponding to the room icon. For example, the display control unit 63 controls the operation display unit 80 to display a list of “environmental information” indicating the air environment of each room based on “device information,” “sensor information,” and “location information.” do.

For example, when an air conditioner and an air cleaner are installed in a certain room and each obtains the room temperature, a representative value is used as the room temperature to be displayed as environmental information. The representative value may be calculated by, for example, obtaining an average value from sensor information of a plurality of devices. Using sensor information from multiple devices makes it easier to detect device failures. Further, target devices may be used depending on the type of sensor information. For example, for room temperature, sensor information from a device that detects a temperature close to the floor surface may be preferentially used as environmental information. This allows the environment that the user actually feels within the space to be displayed more faithfully.

The environment determining unit 64 determines whether or not the air environment in the room needs to be improved based on the "environmental information." The display control unit 63 controls the operation display unit 80 to display the determination result of the environment determination unit 64. In particular, the display control unit 63 controls the operation display unit 80 to display a room icon corresponding to the room, and causes the operation display unit 80 to display the determination result of the environment determination unit 64 in the color of the room icon. to control.

The selection reception section 65a, the operation instruction reception section 65b, and the output section 65c are provided to receive a batch operation for a plurality of air conditioners.

The selection reception unit 65a selects, via the touch panel 81, a first selection in which one or more of the plurality of rooms is selected as the target room, and one type of air conditioner among the plurality of types of air conditioners. A second selection of the device to be operated is accepted. The selection accepting unit 65a accepts the first selection while the room icon is displayed on the operation display unit 80. When the selection reception unit 65a receives the first selection, the display control unit 63 highlights a target room icon that is a room icon corresponding to the target room. The selection accepting unit 65a accepts the second selection with the target room icon highlighted on the operation display unit 80. When the selection reception unit 65a receives the second selection, the display control unit 63 cancels the highlighted display of the non-installation room icon, which is the target room icon corresponding to the room in which the operation target device is not installed, among the target rooms.

The operation instruction receiving unit 65b receives, via the touch panel 81, an operation instruction for the operation target device installed in the target room. The operation instruction receiving section 65b receives the operation instruction with the target room icon highlighted on the operation display section 80. When the operation instruction receiving section 65b receives the operation instruction, the display control section 63 controls the operation display section 80 to display the operating status of the operation target device.

The output unit 65c outputs the first selection and second selection received by the selection reception unit 65a, and the operation instruction received by the operation instruction reception unit 65b.

The third acquisition unit 66 acquires "status information" from the m air conditioners 11 to 1m and the n air purifiers 21 to 2n. The "status information" acquired by the third acquisition unit 66 is written to the device information management table 71a. The display control unit 63 controls the operation display unit 80 to display “status information”.

The maintenance determination unit 67 determines whether or not maintenance work on the air conditioner is necessary based on the "status information." The display control unit 63 controls the operation display unit 80 to display the determination result of the maintenance determination unit 67.

The report generation unit 68 generates a report indicating a history of changes in the air environment of a specified room in a building to be managed.

Next, the management screen 200 displayed on the operation display section 80 will be described with reference to FIGS. 1 to 7. FIG. 7 is a diagram showing an example of the management screen 200.

As shown in FIG. 7, the management screen 200 includes a display format switching area 210, a display range switching area 220, a management target display area 230, a warning area 240, and a batch operation area 250.

Display format switching area 210 includes a floor map icon, a room list icon, and an equipment list icon. The floor map icon is an icon for displaying a list of room icons in the management target display area 230 in a floor map format. The room list icon is an icon for displaying a list of room icons in the management target display area 230 in a matrix format. The device list icon is an icon for displaying a list of operating status icons of each air conditioner in a matrix format in the management target display area 230. In the illustrated example, the room list icon is selected by touch operation and highlighted.

The display range switching area 220 includes all icons, a first floor west icon, a first floor east icon, a second floor icon, and a third floor icon. The administrator can specify a predetermined floor or area using the icon displayed in the display range switching area 220. The display control unit 63 controls the operation display unit 80 to display a list of “environmental information” only for rooms included in a specified floor or a specified area in a building to be managed. In the illustrated example, the 1st floor east icon is selected by touch operation and highlighted.

The managed display area 230 includes a room icon or a driving status icon depending on the selection in the display format switching area 210. The management target display area 230 in the illustrated example includes a first room icon 231, a second room icon 232, a third room icon 233, a fourth room icon 234, a fifth room icon 235, and a sixth room icon. 236. The first room icon 231 to the sixth room icon 236 each indicate "environmental information" and "equipment operation information." For example, the first room icon 231 indicates that the temperature of Room 1 located in the east area of the first floor is 20°C, the humidity is 75%, the air cleanliness (air quality) is 4, and the air conditioner and air purifier are in operation. Show that something is true.

The display control unit 63 controls to display the first room icon 231 to the sixth room icon 236 based on the "position information". Specifically, the display control unit 63 controls so that pieces of position information having similar types are displayed close to each other. In the illustrated example, the first room icon 231 to third room icon 233 corresponding to Room1 to Room3 whose "position information" includes north in the room information management table 71b shown in FIG. 5 are arranged at the top of the screen. . On the other hand, fourth room icons 234 to sixth room icons 236 corresponding to Rooms 4 to 6 whose "location information" includes south are arranged at the bottom of the screen. In addition, in the room information management table 71b shown in FIG. 5, the first room icon 231, second room icon 232, and fourth room icon 234 corresponding to Room1, Room2, and Room4 whose "position information" includes "west" are displayed on the screen. It is placed on the left side. On the other hand, a third room icon 233, a fifth room icon 235, and a sixth room icon 236 corresponding to Room3, Room5, and Room6 whose "position information" includes "east" are arranged on the right side of the screen. In this way, by displaying pieces of location information that are similar in type nearby, it is possible to display "environmental information" of rooms with similar surrounding environments nearby.

As described above, the environment determination unit 64 determines whether or not the air environment in the room needs to be improved based on the "environment information." The display control unit 63 controls the operation display unit 80 to display the determination result of the environment determination unit 64 in the color of the room icon. In the illustrated example, it is determined that the air environment needs to be improved because the temperature of the room exceeds the first threshold, and the third room icon 233 and fourth room icon 234 are displayed in red. Furthermore, since the temperature of the room is below the second threshold, it is determined that the air environment needs to be improved, and the sixth room icon 236 is displayed in blue. The first room icon 231 and the second room icon 232 are displayed in green because it has been determined that there is no need to improve the air environment. The fifth room icon 235 is displayed in gray because the air conditioner is not in operation.

When the administrator touches any of the first room icon 231 to the sixth room icon 236, the management screen 200 is switched to a device operation screen (not shown). On the device operation screen, the administrator can remotely control the air conditioner installed in the selected room.

The alert area 240 includes a temperature check icon 241, an air quality check icon 242, an error occurrence icon 243, and a maintenance/consumables replacement icon 244.

The display control unit 63 controls the operation display unit 80 to display an environmental information icon corresponding to “environmental information”. In addition, when the environment determining unit 64 determines that the air environment of any room requires improvement, the display control unit 63 displays the specific environment corresponding to the specific environment information determined to require improvement. The operation display unit 80 is controlled to highlight the information icon. The temperature monitoring icon 241 and the air quality monitoring icon 242 each correspond to an example of an "environmental information icon."

The temperature reading icon 241 is an environmental information icon corresponding to the temperature of the room. When the environment determining unit 64 determines that the temperature of any of the rooms needs improvement, the display control unit 63 controls the operation display unit 80 to highlight the temperature reading icon 241 in red.

The air quality icon 242 is an environmental information icon corresponding to the air cleanliness of the room. The display control unit 63 causes the operation display unit 80 to highlight the air quality check icon 242 in red when the environment determination unit 64 determines that the air cleanliness of any room needs improvement. Control.

When the specific environment information icon is selected, the display control unit 63 displays only the room icon corresponding to the specific room whose air environment has been determined to need improvement in the management target display area 230. Control as follows. At this time, even if the display format of the room icons in the management target display area 230 is the floor map format, the display control unit 63 automatically switches the display format to the matrix format.

The display control unit 63 controls the operation display unit 80 to display a status information icon corresponding to “status information”. In addition, when the maintenance determination unit 67 determines that maintenance work is required for any of the air conditioners, the display control unit 63 displays a specific state corresponding to the specific state information determined to require maintenance work. The operation display unit 80 is controlled to highlight the information icon. The error occurrence icon 243 and the maintenance/consumables replacement icon 244 each correspond to an example of a "status information icon".

The error occurrence icon 243 is a status information icon corresponding to the presence or absence of equipment abnormality. The display control unit 63 causes the operation display unit 80 to highlight the error occurrence icon 243 in red when the maintenance determination unit 67 determines that maintenance work regarding equipment abnormality is required for any of the air conditioners. Control.

The maintenance/consumables replacement icon 244 is a status information icon corresponding to whether maintenance is necessary. When the maintenance determination unit 67 determines that maintenance work related to maintenance is required for any of the air conditioners, the display control unit 63 causes the operation display unit 80 to highlight the maintenance/consumables replacement icon 244 in red. Control what is displayed.

When the specific status information icon is selected, the display control unit 63 displays only the room icon corresponding to the specific room in which the specific air conditioner that has been determined to require maintenance work to be managed. It is controlled so that it is displayed in area 230. At this time, the display control unit 63 automatically switches the display format of the room icons in the management target display area 230 to the floor map format even if the display format of the room icons in the management target display area 230 is a matrix format, considering the convenience of maintenance work.

The batch operation area 250 includes icons corresponding to devices for which batch operations can be instructed. The icons included in the batch operation area 250 are, for example, icons corresponding to the types of devices that are preset as registrable devices. The collective operation area 250 may not display icons corresponding to types of devices that are not registered in the device information management table 71a. In this embodiment, the collective operation area 250 includes an air conditioner icon 251 and an air purifier icon 252.

When the administrator touches the air conditioner icon 251 or the air purifier icon 252, a room icon corresponding to the room in which the device corresponding to the touched icon is registered among the room icons displayed in the management target display area 230 is displayed. is highlighted. At the same time, a batch operation screen (not shown) is displayed as a pop-up on the management screen 200. At this time, it is preferable to cancel the highlighted display of the room icon in which the device corresponding to the touched icon is not registered. This allows the administrator to confirm the room in which the air conditioning operation will actually be performed.

On the batch operation screen, the administrator can collectively operate the air conditioners installed in the rooms corresponding to the highlighted room icons among the rooms corresponding to the room icons displayed in the management target display area 230. I can do it. Specifically, when the administrator performs a touch operation on the air conditioner icon 251, the operation instruction receiving unit 65b responds to the highlighted room icon among the rooms corresponding to the room icons displayed in the management target display area 230. It accepts batch operations for air conditioners installed in each room. When the administrator touches the air purifier icon 252, the operation instruction receiving unit 65b selects the room corresponding to the highlighted room icon from among the rooms corresponding to the room icons displayed in the management target display area 230. Accepts batch operations for each installed air purifier.

The management screen 200 further includes a settings icon 260 and a report icon 270.

When the administrator touches the settings icon 260, the management screen 200 is switched to a settings screen (not shown). On the setting screen, the administrator can determine setting values such as a first threshold value and a second threshold value to be referred to by the environment determination unit 64.

When the administrator touches the report icon 270, the management screen 200 is switched to a report screen (not shown). As described above, the report generation unit 68 generates a report indicating the history of changes in the air environment of a specified room in a building to be managed. The display control unit 63 controls the operation display unit 80 to display the report generated by the report generation unit 68 in a color corresponding to the color of the room icon.

The management screen 200 further includes a device selection icon 280. The device selection icon 280 is operated before selection of air conditioners targeted for batch operation starts.

Next, the device list screen will be described with reference to FIGS. 7 and 8. FIG. 8 is a diagram showing an example of a device list screen.

As shown in FIG. 8, the equipment list screen includes an equipment list 290 that shows the operating status of each air conditioner. The device list 290 is displayed in the managed object display area 230 shown in FIG. The device list 290 includes a first operating status icon 291 regarding the air conditioner installed in Room 1 and a second operating status icon 292 regarding the air conditioner installed in Room 2. When a batch operation is executed on the room list screen, the display control unit 63 switches the room list screen to the equipment list screen. For example, the administrator can immediately confirm that the air cleaners in Room 1 and Room 2 have been turned off all at once.

The air conditioner management program according to the embodiment includes a selection reception unit 65a, an operation instruction reception unit 65b, and an output unit so as to manage multiple types of air conditioners installed in a building to be managed that has multiple rooms. The computer functions as a 65c. The selection reception unit 65a makes a first selection of selecting one or more of a plurality of rooms as a target room, and selects one type of air conditioner from among a plurality of types of air conditioners as an operation target device. Accept the second selection. The operation instruction reception unit 65b receives operation instructions for the operation target equipment installed in the target room. The output unit 65c outputs the first selection and second selection received by the selection reception unit 65a, and the operation instruction received by the operation instruction reception unit 65b.

According to the embodiment, an air conditioner management device 40 and an air conditioner management program that accept operation instructions for an operation target device selected from a plurality of types of air conditioners are provided.

In particular, according to the embodiment, the administrator can turn on air conditioners in rooms with high room temperatures all at once, or select any room by touching the device selection icon 280 and then turn off air purifiers all at once. It is possible to smoothly perform batch operations of air conditioners.

Note that when the display format or display range of room icons in the managed display area 230 is switched, the display control unit 63 changes the display format of a specific room icon among the room icons to be displayed after switching. It's okay. For example, the display control unit 63 controls a room icon corresponding to a specific room determined to require improvement of the air environment to temporarily stand out. For example, the display control unit 63 may, with a slight delay after switching the display format or display range of room icons in the managed display area 230, highlight the display format of a specific room icon among the room icons to be displayed after switching. control to change. Accordingly, the user can visually confirm the change. This makes it easier for the user to understand the existence of rooms that need improvement. The display control unit 63 also controls the room icon corresponding to the specific room in which the specific air conditioner determined to require maintenance work to be installed to be temporarily highlighted.

The above description of the embodiments describes the preferred embodiments of the present invention, and therefore may include various technically preferable limitations; however, the technical scope of the present invention particularly covers the present invention. Unless otherwise stated, the present invention is not limited to these embodiments. That is, the components in the above embodiment can be replaced with existing components as appropriate, and various variations including combinations with other existing components are possible. The description of the above embodiments is not intended to limit the content of the invention set forth in the claims.

INDUSTRIAL APPLICABILITY The present invention can be used in the field of air conditioner management devices and air conditioner management programs.

11-1m Air conditioner (air conditioner)
21~2n Air purifier (air conditioner)
40 Air conditioner management device 60 Control section 63 Display control section 65a Selection reception section 65b Operation instruction reception section 65c Output section 70 Storage section 71a Equipment information management table 71b Room information management table 72 Sensor information management table 80 Operation display section (display section)

Claims (8)

An air conditioner management device that manages multiple types of air conditioners installed in a managed building having multiple rooms,
a first selection of selecting one or more of the plurality of rooms as a target room; and a second selection of selecting one of the plurality of types of air conditioners as an operation target device. a selection reception department that accepts
an operation instruction reception unit that receives operation instructions for the operation target device installed in the target room;
an output unit that outputs the first selection and the second selection received by the selection reception unit and the operation instruction received by the operation instruction reception unit;
Air conditioner management device equipped with A display section;
a display control unit that displays a room icon corresponding to one of the plurality of rooms on the display unit;
further comprising;
The room icon includes environmental information indicating the air environment of the room corresponding to the room icon or position information indicating the position of the room corresponding to the room icon,
The air conditioner management device according to claim 1, wherein the selection reception unit receives the first selection with the room icon displayed on the display unit. The air conditioner management device according to claim 2, wherein the display control unit highlights a target room icon that is the room icon corresponding to the target room when the selection reception unit receives the first selection. The air conditioner management device according to claim 3, wherein the selection reception unit receives the second selection with the target room icon highlighted on the display unit. When the selection reception unit receives the second selection, the display control unit highlights a non-installation room icon that is the target room icon corresponding to a room in which the operation target device is not installed in the target room. The air conditioner management device according to claim 4, wherein the air conditioner management device releases the . The air conditioner management device according to any one of claims 3 to 5, wherein the operation instruction reception unit receives the operation instruction with the target room icon highlighted on the display unit. The air conditioner according to any one of claims 2 to 6, wherein the display control unit displays the operating status of the operation target device on the display unit when the operation instruction receiving unit receives the operation instruction. Machine management device. An air conditioner management program that manages multiple types of air conditioners installed in a managed building having multiple rooms,
a first selection of selecting one or more of the plurality of rooms as a target room; and a second selection of selecting one of the plurality of types of air conditioners as an operation target device. Selection reception department that accepts
an operation instruction reception unit that receives operation instructions for the operation target device installed in the target room; and
An air conditioner management program that causes a computer to function as an output unit that outputs the first selection and the second selection received by the selection reception unit and the operation instruction received by the operation instruction reception unit.

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