JP2019074259A - Control device of air conditioner - Google Patents

Abstract

To allow a user to easily execute regulation of a dead band.SOLUTION: A control device of an air conditioner comprises: an input unit 12a configured to receive setting of cooling and heating of an air conditioner; a display unit 12b configured to display setting values of a cooling temperature and a heating temperature; and a controller 13 configured to control these units. The controller 13 is configured to, when any one of the cooling temperature and heating temperature is set as an initial value, and then the other temperature is set, change the initially set temperature so that temperature difference between both temperatures is kept to a predetermined threshold or more.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control device of an air conditioner.

  For example, in an air conditioner in the United States, it is defined that a fixed width, that is, a dead band is provided between the minimum temperature that can be set for cooling and the maximum temperature that can be set for heating (see Non-Patent Document 1). .

ANSI / ASHRAE / IES Standard 90.1-2010, “Energy Standard for Buildings Except Low-Rise Residential Buildings I-P Edition”, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., P. 42

In the case of a configuration in which the user can arbitrarily set the cooling set temperature and the heating set temperature, there is a possibility that the setting operation may be complicated in order to securely implement the dead band control.
An object of the present invention is to enable a user to easily implement dead band regulation.

  A control device of an air conditioner according to one aspect of the present invention includes an input unit that receives settings of cooling and heating temperatures of the air conditioner, a display unit that displays setting values of the cooling temperature and the heating temperature, an input unit, A control unit that controls the display unit, and the control unit sets one of the cooling temperature and the heating temperature as an initial value, and when the other temperature is then set, both temperatures are set. A control device of an air conditioner characterized by changing a previously set temperature so that a difference maintains a predetermined threshold value or more.

  According to the present invention, when the temperature of the cooling and the temperature of the heating are arbitrarily selected, the user changes the previously selected temperature so that the temperature difference between the two becomes equal to or more than the predetermined threshold. Band regulations can be easily implemented.

It is a figure which shows the control system of an air conditioner. It is a flowchart of a display process. It is a flowchart of a display process. It is a figure which shows the example of a display of a temperature list. It is a figure which shows the change result of T1. It is a figure which shows the return result of T1.

  Hereinafter, embodiments of the present invention will be described based on the drawings. Each drawing is schematic and may be different from the actual one. In addition, the following embodiments illustrate apparatuses and methods for embodying the technical idea of the present invention, and the configuration is not specified to the following. That is, the technical idea of the present invention can be variously modified within the technical scope described in the claims.

<< Embodiment >>
"Constitution"
FIG. 1 is a diagram showing a control system of an air conditioner.
The control system 11 includes a touch panel 12, a controller 13, and an air conditioner 14. Here, a medium-scale system in which several tens of air conditioners 14 are centrally managed is assumed.

The touch panel 12 includes an input unit 12a which is an operation input unit, and a display unit 12b which is a liquid crystal display. The input unit 12a senses the user's touch operation on the screen with a resistive film type or capacitance type touch sensor, and performs various settings based on the touch position. The display unit 12 b performs arbitrary display by partially blocking or transmitting light emitted from the backlight.
The controller 13, which is a control unit, is configured by, for example, a microcomputer, and includes a list display processing unit 21, a selection result display processing unit 22, a storage unit 23, and a command transmission unit 24.
The list display processing unit 21 displays a temperature list at the time of cooling in the air conditioner 14 and a temperature list at the time of heating on the touch panel 12 when the user requests a temperature setting via the touch panel 12.

The selection result display processing unit 22 displays the selection result on the touch panel 12 when the user selects an arbitrary temperature from each of the cooling temperature list and the heating temperature list.
The storage unit 23 stores a predetermined dead band width α and the like as data.
Hereinafter, this α is treated as a threshold.
The command transmission unit 24 transmits a command from the user to the air conditioner 14.
The air conditioner 14 harmonizes the indoor air with predetermined setting conditions by cooling, heating, dehumidifying or humidifying according to an instruction from the user.

2 and 3 are flowcharts showing display processing.
This display process is activated when a specific user requests a temperature setting.
The temperature setting request operation is limited by authentication with a password or the like. For example, an operation is performed in which only the facility manager can perform this operation.

In step S103, the indoor unit function information in the air conditioner 14 is acquired.
In step S104, the current set temperature, that is, the set temperature Tc at the time of cooling, and the set temperature Th at the time of heating are acquired.
In step S105, the temperature list at the time of cooling and the temperature list at the time of heating are displayed on the touch panel 12. Each temperature list is a list listing selectable temperature options.

FIG. 4 is a view showing a display example of the temperature list.
Here, the temperature list 31 at the time of cooling is displayed on the left side, and the temperature list 32 at the time of heating is displayed on the right side, and options are listed for each 1.0 ° C., respectively. “26.0 ° C.” highlighted in the cooling temperature list 31 and “23.0 ° C.” highlighted in the heating temperature list 32 are respectively the current set temperatures.
In step S106, it is determined whether an arbitrary temperature is selected from one of the temperature list 31 for cooling and the temperature list 32 for heating. When it is selected (S106-No), the process proceeds to step S107. The temperature selected here is taken as an initial value. On the other hand, when it is not selected (S106-Yes), it waits until it is selected.

In step S107, the selection result is highlighted on the touch panel 12. For example, although “26.0 ° C.” is highlighted in the temperature list 31 at the time of cooling in FIG. 4, when the user touches “25.0 ° C.”, the highlighted display changes from “26.0 ° C.” to “25 Switch to 0 ° C.
In step S108, the previously selected temperature is stored as T1.
In step S109, it is determined whether or not an arbitrary temperature is selected from the other of the temperature list 31 for cooling and the temperature list 32 for heating. When it is selected (S109-Yes), the process proceeds to step S110. On the other hand, when it is not selected (S109-No), it waits until it is selected.

In step S110, the selection result is highlighted on the touch panel 12. In FIG. 4, “23.0 ° C.” is highlighted in the heating temperature list 32, but when the user touches “19.0 ° C.”, for example, the highlighted display changes from “23.0 ° C.” to “19. Switch to 0 ° C.
In step S111, the temperature selected later is stored as T2.
In step S112, it is determined whether the previously selected temperature T1 is a temperature at the time of cooling. When T1 is the cooling temperature (S112-Yes), the process proceeds to step S113. On the other hand, when T1 is the temperature at the time of heating (S112-No), the process proceeds to step S115.

  In step S113, a predetermined threshold value α is referred to, and the previously selected temperature T1 is greater than the temperature T2 selected later, and a value obtained by subtracting the temperature T2 from the temperature T1 is α or more. It is determined whether T1> T2 and T1-T2 ≧ α. Here, if the temperature T1 is greater than the temperature T2 and the value obtained by subtracting the temperature T2 from the temperature T1 is α or more (T1> T2 and T1-T2 ≧ α) (S113-Yes), It is determined that the temperature difference between the temperatures T1 and T2 satisfies the dead band control, and the process proceeds to step S117. On the other hand, when the temperature T1 is equal to or lower than the temperature T2 or the value obtained by subtracting the temperature T2 from the temperature T1 is less than α (T1 ≦ T2 or T1-T2 <α) (S113-No), the dead band is It is determined that the regulation is not satisfied, and the process proceeds to step S114.

In step S114, the previously selected temperature T1 is changed to a value obtained by adding α of the dead band to the later selected temperature T2 (T1 ← T2 + α), and the changed result is displayed on the touch panel 12.
FIG. 5 is a diagram showing the result of changing T1.
It is assumed that “26.0 ° C.” is first selected as the cooling temperature, and then “24.0 ° C.” is selected as the heating temperature. Assuming that α is 3.0 ° C., since the temperature difference between the selected temperatures T1 and T2 does not satisfy the dead band regulation, the temperature at the time of cooling selected previously is “26.0 ° C.” to “27. It has been changed to "0 ° C".

  In step S115, α is read from the storage unit 23, and it is determined whether or not the previously selected temperature T1 is smaller than the later selected temperature T2 and a value obtained by subtracting the temperature T1 from the temperature T2 is α or more. (T2> T1 and T2-T1 ≧ α). Here, if the temperature T1 is smaller than the temperature T2 and the value obtained by subtracting the temperature T1 from the temperature T2 is α or more (T2> T1 and T2-T1 ≧ α) (S115-Yes), It is determined that the temperature difference between the temperatures T1 and T2 satisfies the dead band control, and the process proceeds to step S117. On the other hand, it is selected when the temperature T1 is equal to or higher than the temperature T2 or the value obtained by subtracting the temperature T1 from the temperature T2 is less than α (T2 ≦ T1 or T2-T1 <α) (S115-No) It is determined that the temperature difference between the temperatures T1 and T2 does not satisfy the dead band regulation, and the process proceeds to step S116.

In step S116, the previously selected temperature T1 is changed to a value obtained by subtracting α for the dead band from the temperature T2 selected later (T1 T T2-α), and the changed result is displayed on the touch panel 12.
In step S117, it is determined whether the user has sent the set temperature for cooling and the set temperature for heating. For example, in FIG. 4, the transmission button 33 is displayed at the lower right, and when the user touches the transmission button 33, the set temperature for cooling and the set temperature for heating are transmitted to the air conditioner 14. When the user transmits (S117-Yes), the display process ends. On the other hand, when the user is not transmitting (S117-No), the process proceeds to step S118.

In step S118, it is determined whether the user has reselected the temperature T2 selected later. When the temperature T2 is not reselected (S118-No), the process proceeds to step S117. On the other hand, when the temperature T2 is reselected (S118-Yes), the process proceeds to step S119.
In step S119, the selection result is highlighted on the touch panel 12.
In step S120, it is determined whether the temperature difference between the selected temperatures T1 and T2 is larger than the width of the dead band, as in the process of steps S112, S113, and S115 described above. When the temperature difference between the selected temperatures T1 and T2 is larger than or equal to the width of the dead band (S120-Yes), the process proceeds to step S121. On the other hand, when the temperature difference between the selected temperatures T1 and T2 is smaller than the width of the dead band (S120-No), the process proceeds to step S122.

In step S121, the temperature T1 selected earlier is returned to the initial value before the change, and then the process proceeds to step S117.
FIG. 6 is a diagram showing the return result of T1.
By previously selecting “26.0 ° C.” as the cooling temperature and then selecting “24.0 ° C.” as the heating temperature, the previously selected cooling temperature is “27.0”. It has been changed to "° C". On the other hand, when the user reselects “22.0 ° C.” as the heating temperature, the temperature at the previously selected cooling returns to the initial “26.0 ° C.”.
In step S122, as in the process of steps S114 and S116 described above, the previously selected temperature T1 is changed, and then the process proceeds to step S117.
The above is the display process.

<< Operation >>
Next, main actions of the embodiment will be described.
In the US air conditioner, it is defined from the viewpoint of energy saving that a certain width (α in this embodiment) is provided between the minimum temperature that can be set by cooling and the maximum temperature that can be set by heating. That is, the setting temperature of the cooling is set to be lower, and the setting temperature of the heating is set to be higher. However, in the case where the user can arbitrarily set the cooling setting temperature and the heating setting temperature, the setting temperature difference between the cooling and the heating should be set to α or more in order to reliably implement the dead band control. The setter must always pay attention and make adjustments, which may make setting operation complicated.

Therefore, the user first selects an arbitrary temperature from one of the temperature list 31 for cooling and the temperature list 32 for heating (S106-Yes), and then selects an arbitrary temperature from the other (S109) -Yes). At this time, the previously selected temperature T1 is selected according to the temperature T2 selected so that the temperature at the time of cooling is higher than the temperature at the time of heating and the difference between the two is equal to or greater than a predetermined dead band. Change
Specifically, it is assumed that the previously selected temperature T1 is the temperature at the time of cooling (S112-Yes). The temperature T1 at the time of cooling is equal to or lower than the temperature T2 at the time of heating, or the value obtained by subtracting the temperature T2 at the time of heating from the temperature T1 at the time of cooling is less than α (S113-No). In this case, the previously selected temperature T1 is changed to a value obtained by adding α to the subsequently selected temperature T2 (S114).

On the other hand, it is assumed that the previously selected temperature T1 is the heating temperature (S112-No). Then, it is assumed that the temperature T1 at the time of heating is equal to or higher than the temperature T2 at the time of cooling, or the value obtained by subtracting the temperature T1 at the time of heating from the temperature T2 at the time of cooling is less than α (S115-No). In this case, the previously selected temperature T1 is changed to a value obtained by subtracting α from the subsequently selected temperature T2 (S116).
Thus, when the temperature of the cooling and the temperature of the heating are arbitrarily selected, the temperature at the time of heating <the temperature at the time of the cooling, and the difference between the both becomes α or more according to the temperature T2 selected later Since the previously selected temperature T1 is changed, the user can easily implement the dead band regulation.

In addition, it is assumed that the user reselects to correct the temperature T2 selected later (S118-Yes). At this time, when the value obtained by subtracting the heating temperature from the cooling temperature becomes α or more (S120-Yes), the previously selected temperature T1 is returned to the initial value before the change (S121). As described above, by maintaining the initial value of the temperature T1 selected previously, it is possible to perform control reflecting the user's initial instruction.
Then, when the user touches the send button 33, the set temperature at the time of cooling and the set temperature at the time of heating are transmitted to the air conditioner 14 (S117). Thereby, air conditioning according to the user's instruction is realized.

<< Modification >>
Although said embodiment demonstrated the structure which a user inputs operation via the touch panel 12, it is not limited to this. For example, the present invention can be applied to a configuration in which a temperature list at the time of cooling and a temperature list at the time of heating are displayed on a display, and the user operates a mouse as a pointing device to select an arbitrary temperature. In this case, it is desirable to highlight the temperature at which the cursor is located and to make the temperature selected with the movement of the cursor variable so that the temperature is fixed by clicking. Furthermore, it is applicable also to the composition which carries out operation input via portable terminals, such as a smart phone. The point is that any display interface that can display the temperature list to the user and can display the user's selection results can be applied to any other configuration.

  Although the foregoing has been described with reference to a limited number of embodiments, the scope of rights is not limited to them, and modifications of the embodiments based on the above disclosure are obvious to those skilled in the art.

11 control system 12 touch panel 12a input unit 12b display unit 13 controller 14 air conditioner 21 list display processing unit 22 selection result display processing unit 23 storage unit 24 command transmission unit 31 temperature list at cooling 32 temperature list at heating 33 transmission button

Claims (2)

An input unit that receives settings of cooling and heating temperatures of the air conditioner;
A display unit for displaying set values of the cooling temperature and the heating temperature;
And a control unit that controls the input unit and the display unit.
The control unit
When one of the cooling temperature and the heating temperature is set as an initial value and then the other temperature is set, the temperature difference between the both is maintained at or above a predetermined threshold value. A control device of an air conditioner characterized by changing a set temperature. The control unit
The control of the air conditioner according to claim 1, wherein when the temperature set later is changed and the temperature difference becomes equal to or more than the threshold value, the previously set temperature is returned to the initial value. apparatus.

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