JP2017150711A - Room temperature control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a room temperature control system capable of saving energy with comfort.SOLUTION: A room temperature control system includes two or more windows 1, 1, ..., an outside air temperature sensor 2, a room temperature sensor 3, an outside air humidity sensor 4, a room humidity sensor 5, and control means 6. The control means 6, when a room temperature is equal to or higher than a comfort lower limit temperature TL and an outside air temperature is equal to or higher than a window close temperature TC and lower than the room temperature, opens the windows 1, 1, ..., and when an outside air humidity or outside air enthalpy is higher than room humidity or room enthalpy, closes the windows 1, 1, ... even when the room temperature is equal to or higher than the comfort lower limit temperature TL and the outside air temperature is equal to or higher than the window close temperature TC and lower than the room temperature.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a room temperature control system that automatically opens and closes a window and keeps the room comfortable.

  Conventionally, an air conditioner has been used as a means for adjusting the temperature in the room, but when adjusting the temperature with the air conditioner, an ON / OFF operation is required each time, which is troublesome. In addition, if the air conditioner is used for a long time, it leads to waste of energy, and there is a risk that the human body is loaded and health is impaired.

  The present invention has been made in view of the circumstances described above, and an object of the present invention is to provide a room temperature control system that is comfortable and can save energy.

  In order to achieve the above object, a room temperature control system according to the first aspect of the present invention comprises two or more windows, an outdoor air temperature sensor, an indoor temperature sensor, an outdoor air humidity sensor, an indoor humidity sensor, and control means, and control means. Is to open the window when the room temperature is above the comfortable lower limit temperature and the outside air temperature is above the window closing temperature and below the room temperature, and when the outside air humidity or outside air enthalpy is higher than the room humidity or indoor enthalpy, the room temperature is comfortable The window is closed even when the temperature is lower than the lower limit temperature and the outside air temperature is higher than the window closing temperature and lower than the room temperature.

  A room temperature control system according to a second aspect of the present invention comprises two or more windows, an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, and a control means, and the control means has a room temperature not less than a comfortable lower limit temperature and an outside air temperature. When the outside air humidity or outside enthalpy is higher than the specified value, the room temperature is above the comfortable lower limit temperature and the outside air temperature is above the window closing temperature. It is characterized by closing the window even when it is lower.

  A room temperature control system according to a third aspect of the present invention comprises two or more windows, an outside air temperature sensor, an indoor temperature sensor, an indoor humidity sensor, and a control means, and the control means has a room temperature not less than a comfortable lower limit temperature and an outside air temperature. When the room humidity is higher than the window closing temperature and lower than the room temperature, and the room humidity or the room enthalpy is higher than the predetermined value, the room temperature is above the comfortable lower limit temperature and the outside air temperature is above the window closing temperature. It is characterized by closing the window even when it is lower.

  A room temperature control system according to a fourth aspect of the present invention includes two or more windows, an outside air temperature sensor, an indoor temperature sensor, a rain sensor, and a control means. When the rain sensor detects rain, it closes the window and lowers the window opening temperature for a predetermined period after the rain stops. To do.

  The room temperature control system according to the invention described in claim 5 further includes an air conditioner in addition to the configuration of the invention described in claim 1, 2, 3 or 4, and the control means turns off the air conditioner when the window is opened, The air conditioner is turned on when the temperature is higher than a predetermined temperature and the window is closed.

  The room temperature control system according to the first aspect of the present invention includes two or more windows, an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, an indoor humidity sensor, and a control means, and the control means has a room temperature equal to or higher than a comfortable lower limit temperature. When the outside air temperature is higher than the window closing temperature and lower than the room temperature, the room temperature can be comfortably controlled using the natural wind to the maximum, and the control means is that the outside air humidity or the outside air enthalpy is the room humidity. Or when the temperature is higher than the indoor enthalpy, the window is closed even when the room temperature is above the comfortable lower limit temperature and the outside air temperature is above the window closing temperature and below the room temperature. Comfort can be prevented and energy can be saved because it can be prevented from being lost.

  A room temperature control system according to a second aspect of the present invention comprises two or more windows, an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, and a control means, and the control means has a room temperature not less than a comfortable lower limit temperature and an outside air temperature. By opening the window when the temperature is above the window closing temperature and below the room temperature, it is possible to comfortably control the room temperature by making the best use of natural wind, and the control means has an outside air humidity or an outside air enthalpy higher than a predetermined value When the room temperature is higher than the comfortable lower limit temperature and the outside air temperature is higher than the window closing temperature and lower than the room temperature, the window is closed, so that outside air with high humidity flows into the room and indoor comfort is impaired. Can be prevented, so it is comfortable and energy saving.

  A room temperature control system according to a third aspect of the present invention comprises two or more windows, an outside air temperature sensor, an indoor temperature sensor, an indoor humidity sensor, and a control means, and the control means has a room temperature not less than a comfortable lower limit temperature and an outside air temperature. By opening the window when the temperature is above the window closing temperature and below the room temperature, it is possible to comfortably control the room temperature using the natural wind to the maximum, and the control means is that the room humidity or the room enthalpy is higher than the predetermined value When the room temperature is higher than the comfortable lower limit temperature and the outside air temperature is higher than the window closing temperature and lower than the room temperature, the window is closed, so that outside air with high humidity flows into the room and indoor comfort is impaired. Can be prevented, so it is comfortable and energy saving.

  A room temperature control system according to a fourth aspect of the present invention includes two or more windows, an outside air temperature sensor, an indoor temperature sensor, a rain sensor, and a control means. By opening the window when the temperature is above the window closing temperature and below the room temperature, the room temperature can be controlled comfortably using the natural wind to the maximum, and the control means closes the window when the rain sensor detects rain. At the same time, by lowering the window opening temperature for a predetermined period after the rain has stopped, it is possible to prevent the outside air with high humidity from flowing into the room and impairing the comfort in the room, so that comfort and energy saving can be achieved.

  The room temperature control system according to the invention of claim 5 further includes an air conditioner, and the control means turns off the air conditioner when the window is opened, and turns on the air conditioner when the room temperature is equal to or higher than the predetermined temperature and the window is closed. In addition, the comfort of the room can be further improved by operating the air conditioner, and the operation time of the air conditioner can be reduced as much as possible by incorporating the natural wind to save energy.

It is a flowchart which shows an example of the flow of control of the control means in the case of no air conditioner. FIG. 2 shows determination diagrams 1, 2, and 3 used for humidity determination in the flowchart of FIG. FIG. 2 is a determination diagram “a” used for temperature state determination in the flowchart of FIG. 1. It is a flowchart which shows the other example of the control flow of the control means in the case of no air conditioner, Comprising: The thing at the time other than midsummer is shown. FIG. 5 shows a determination diagram b used for temperature state determination in the flowchart of FIG. 4. It is a flowchart which shows the other example of the control flow of the control means in the case of no air conditioner, Comprising: The thing at the time of midsummer is shown. FIG. 7 shows a determination diagram c used for temperature state determination in the flowchart of FIG. 6. It is a flowchart which shows an example of the flow of control of the control means in the presence of an air conditioner. FIG. 9 is a determination diagram A used for temperature state determination in the flowchart of FIG. 8. FIG. 9 is a determination diagram B used for temperature state determination in the flowchart of FIG. 8. FIG. 9 shows a determination diagram C used for temperature state determination in the flowchart of FIG. 8. It is a flowchart which shows the other example of the flow of control of the control means in the presence of an air conditioner, and shows a case other than midsummer. FIG. 13 shows a determination diagram D used for temperature state determination in the flowchart of FIG. FIG. 13 shows a determination diagram D2 used for temperature state determination in the flowchart of FIG. It is a flowchart which shows the other example of the flow of control of the control means when an air conditioner exists, Comprising: The thing at the time of midsummer is shown. FIG. 16 is a determination diagram E used for temperature state determination in the flowchart of FIG. 15. FIG. 16 shows a determination diagram E2 used for temperature state determination in the flowchart of FIG. It is a top view which shows typically the building which installed the room temperature control system which concerns on one Embodiment of this invention. It is a block diagram which shows the function structure of the room temperature control system. It is a graph which shows the cooling load reduction effect of the room temperature control system of this invention. It is a graph which shows the result of the simulation performed about the room temperature control system of this invention, Comprising: The state of the room temperature and humidity when a window opens is plotted on an air diagram. It is a graph which shows the result of the simulation performed about the room temperature control system of this invention, Comprising: The state of the room temperature and humidity when a window opens is plotted on an air diagram. It is a graph which shows the result of the experiment performed about the room temperature control system of this invention, Comprising: The state of the outdoor temperature and humidity when a window opens is plotted on an air diagram. It is a graph which shows the result of the simulation performed about the room temperature control system of the present invention, and shows the rate of comfortable time.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 18 is a plan view schematically showing a building in which a room temperature control system according to an embodiment of the present invention is installed, and FIG. 19 is a block diagram showing a functional configuration of the system. The room temperature control system of this embodiment is applied to a one-story house.
This system includes a plurality of windows 1, 1,... Facing outdoors, an air conditioner 7 installed indoors, a central controller 6, an operation panel 8, an indoor temperature sensor 3 and an indoor humidity sensor 5, and rain installed outdoors. A sensor 9, an outside air temperature sensor 2, and an outside air humidity sensor 4 are provided. The windows 1, 1,..., The air conditioner 7, the operation panel 8, and the sensors 2, 3, 4, 5, 9 are connected to the centralized controller 6 by wire or wirelessly.
In addition, although this embodiment is a system provided with the air conditioner 7, there may be a system without the air conditioner 7.

  Each window 1 is an electric window connected to the outdoors, and is automatically opened and closed by a motor (not shown) based on a command from the central controller 6. Each window 1 can restrict the amount of ventilation as a fully open state, a fully closed state, or a half open state. A plurality of windows 1, 1,... Are provided on walls facing or intersecting the building. By opening these windows 1, 1,... Since a lot of cool outdoor air can be taken into the room, it is possible to comfortably control the room temperature by making the best use of the natural wind. Two windows 1 and 1 can be provided at the upper and lower parts on one wall. In this case, ventilation by gravity ventilation can be performed by simultaneously opening the two windows. Each window 1 may be of any kind, such as a sliding window, an awning window, or a sliding window.

The operation panel 8 has a function of monitoring indoor and outdoor temperature and humidity states, a function of setting a comfortable upper limit temperature TH, a comfortable lower limit temperature TL and a window closing temperature TC, and a function of setting an operation mode. .
The comfortable upper limit temperature TH and the comfortable lower limit temperature TL can be set as desired by the user, but considering the ecology, the comfortable upper limit temperature TH is set slightly higher than the normal air conditioner set temperature, and the comfortable lower limit temperature TL is set to the user. Is preferably an acceptable temperature (a temperature at which it does not feel cold). Specifically, for example, the comfortable upper limit temperature TH is set to 27 ° C. and the comfortable lower limit temperature TL is set to 22 ° C. during the daytime, and the comfortable upper limit temperature TH is set to 29 ° C. and the comfortable lower limit temperature TL is set to 24 ° C. at night. Rather than individually setting the comfortable upper limit temperature TH and the comfortable lower limit temperature TL, when a certain set temperature is set, the set temperature ± 3 ° C is automatically set as the comfortable upper limit temperature TH and the comfortable lower limit temperature TL. It can also be done. In general, an air conditioner also has a function of setting a set temperature, but the set temperature of the air conditioner is set to the same temperature as the comfortable upper limit temperature TH of this system. The window closing temperature TC is set to prevent the window from being opened when the outside air temperature falls below the temperature in order to prevent the room temperature from being lowered too much. For example, the window closing temperature TC is set to 20 ° C.
As the operation mode, an air conditioner use mode and an air conditioner non-use mode can be selected. The air conditioner use mode is selected when there is a person in the room, and automatically turns the air conditioner 7 on and off and automatically opens and closes the windows 1, 1,. The air conditioner non-use mode is selected when there is no person in the room, and the air conditioner 7 is automatically turned off and automatically opened and closed to control the room comfortably. Is. Switching between the air conditioner use mode and the air conditioner non-use mode may be performed manually, or may be automatically switched by a human sensor installed in the room.

  The centralized controller 6 is composed of, for example, a personal computer or a dedicated controller, and includes a storage unit that stores various data and programs, a timer unit that performs timekeeping operation, and the like, according to a program stored in advance in the storage unit. The outside air temperature is compared, and the opening and closing of the windows 1, 1,. The central controller 6 has a function of calculating the outside air enthalpy based on the outside air temperature detected by the outside air temperature sensor 2 and the outside air humidity detected by the outside air humidity sensor 4, and the room temperature and indoor humidity sensor 5 detected by the room temperature sensor 3. It has a function of calculating the indoor enthalpy based on the detected indoor humidity.

  Next, the flow of control performed by the centralized controller 6 will be described based on a flowchart. FIG. 1 is a flowchart showing an example of the control flow of the centralized controller 6 when there is no air conditioner. As shown in FIG. 1, when the control determination is started, a loop process is started (step S1), and the presence / absence of rainfall is subsequently determined from information obtained by the rain sensor 9 (step S2). If it is determined that there is rain, the windows 1, 1,... Are closed (step S3), and the loop processing is terminated.

If it is determined that there is no rain in step S2, humidity determination is performed using any one of the determination diagrams 1, 2, and 3 shown in FIG. 2 (step S4). Which of the determination diagrams 1, 2, and 3 is used is determined in advance by a program.
The determination shown in FIG. 2A is determined as state 1 when the outside air humidity or outside air enthalpy is equal to or higher than a certain value Hh, and determined as state 2 when the outside air humidity or outside air enthalpy is lower than a certain value Hh. Yes (outside air humidity constant value control, outside air enthalpy constant value control). When the determination diagram 1 is used, it is not necessary to detect the indoor humidity and the indoor enthalpy, and therefore an indoor humidity sensor is not necessary.
FIG. 2B shows a determination diagram 2 in which when the outside air humidity or the outside air enthalpy is higher than the room humidity or the room enthalpy, it is judged as the state 1, and when the outside air humidity or the outside air enthalpy is lower than the room humidity or the room enthalpy. State 2 is determined (humidity proportional control, enthalpy proportional control).
FIG. 3C shows a determination diagram 3 in which state 1 is determined when the room humidity or the room enthalpy is higher than a certain value Hh, and state 2 when the room humidity or the room enthalpy is lower than a certain value Hh. (Indoor humidity constant value control, indoor enthalpy constant value control). When the determination diagram 3 is used, it is not necessary to detect the outdoor humidity or the outdoor enthalpy, and therefore the outdoor humidity sensor is not necessary.

  As a result of the determination according to any one of the above determination diagrams 1 to 3, when it is determined that the state 1 is present, the windows 1, 1,... Are closed (step S3) and the loop processing is ended in the same manner as when there is rain. When the state 2 is determined, a temperature state determination is performed based on a determination diagram “a” described later, and the windows 1, 1,... By performing such control, it is possible to prevent outdoor air with high humidity from flowing into the room and impairing indoor comfort. Since enthalpy is proportional to humidity, even if the determination is made by enthalpy, the same effect as when the determination is made by humidity can be obtained.

If it is determined in step S4 that the state is 2, the outside air temperature and room temperature are applied to the determination diagram a shown in FIG. 3 (step S5), and the states of the windows 1, 1,... Are determined (step S6). In the determination diagram a, when the outside air temperature is equal to or lower than the window closing temperature TC, when the room temperature is equal to or lower than the comfortable lower limit temperature TL, and when the room temperature is equal to or higher than the comfortable lower limit temperature TL and the outside air temperature is higher than the room temperature (A region in the figure). ), Windows 1, 1,... Are closed. When the room temperature is equal to or higher than the comfortable lower limit temperature TL and the outside air temperature is lower than the room temperature (B region in the figure), the windows 1, 1,.
When the outside air temperature is lower than the comfortable lower limit temperature TL and higher than the window closing temperature TC and the room temperature is higher than the comfortable lower limit temperature TL (C region in the figure), the windows 1, 1,. Half open).

  FIG. 4 is a flowchart showing another example of the control flow of the centralized controller 6 when there is no air conditioner, and shows a case other than midsummer. When the control determination is started, a loop process is started (step S11), and then whether or not there is rainfall is determined from information obtained by the rain sensor 9 (step S12). If it is determined that there is rain, the windows 1, 1,... Are closed (step S13), and the loop processing is terminated. Up to this point, the control is the same as the control of the flowchart of FIG. 1 described above.

If it is determined that there is no rain in step S12, it is determined whether or not a predetermined period has elapsed after the rain (S14). The predetermined period here may be set by the length of time, for example, how many hours, or may be set by the time of the end point of the period. Preferably, the period is from the rain until the next morning.
If it is determined in step S14 that a predetermined period has elapsed after the rain, the outside air temperature and room temperature are applied to the determination diagram a shown in FIG. 3 (step S15), and the states of windows 1, 1,... Are determined (step S16). . Steps S15 and S16 are the same as steps S5 and S6 in the flowchart of FIG.

If it is determined in step S14 that the predetermined period has not elapsed since the rain, the outside air temperature and the room temperature are applied to the determination diagram b shown in FIG. 5 (step S17), and the states of the windows 1, 1,. S16). Compared to the determination diagram a shown in FIG. 3, the determination diagram b is a range in which the outside air temperature is not lower than the comfortable upper limit temperature TH by dt4 + T or less in the region where the room temperature is not less than the comfortable lower limit temperature TL and the outside air temperature is lower than the room temperature. The difference is that the windows 1, 1,... Are closed. That is, the window opening temperature is lowered until a predetermined period elapses after the rain.
Since the humidity of the outside air increases after the rain, the window opening temperature is lowered and the conditions for opening the windows 1, 1,. High outdoor air can be prevented from flowing into the room and impairing indoor comfort. According to this control, the outside humidity sensor 4 and the indoor humidity sensor 5 become unnecessary, and the cost can be reduced.

FIG. 6 is a flowchart showing another example of the control flow of the centralized controller 6 when there is no air conditioner, and shows a case of midsummer. The flow of control is the same as in the case other than midsummer shown in FIG. The difference is that the determination diagram in the temperature state determination (step S15) when a predetermined period has passed after raining is the determination diagram b shown in FIG. 5, and the window opening temperature is compared with the determination diagram a in the case other than midsummer. The determination diagram in the temperature state determination (step S17) in the case where the predetermined period has not elapsed since the point of lowering and the rainfall is the determination diagram c shown in FIG. 7, and the window opening temperature is T2 compared with the determination diagram b. It is further lowered.
In midsummer, the humidity is generally higher than in other than midsummer, so by lowering the window opening temperature in this way, outdoor air with high humidity flows into the room during midsummer and indoor comfort is impaired. And can improve the comfort of midsummer.

FIG. 8 is a flowchart showing an example of the control flow of the centralized controller 6 when there is an air conditioner. As shown in FIG. 8, when the control determination is started, a loop process is started (step S21), and then whether or not there is rainfall is determined from information obtained by the rain sensor 9 (step S22).
If it is determined that there is rainfall, it is determined whether there is a person in the room (presence / absence determination) (step S23). When the air conditioner non-use mode is selected or the presence sensor does not detect a person, it is judged as “absent”, and when the air conditioner use mode is selected or when the presence sensor detects a person, Is determined. When it is determined as “absent”, the windows 1, 1,... Are closed and the air conditioner 7 is turned off (step S24). When it is determined as “present”, the outside air temperature and the room temperature are applied to the determination diagram C shown in FIG. 11 (step S25), and the states of the windows 1, 1,... And the air conditioner 7 are determined (step S26). Specifically, when the room temperature is higher than the comfortable upper limit temperature TH, the windows 1, 1,... Are closed and the air conditioner 7 is turned on. When the room temperature is lower than the comfortable upper limit temperature TH, the windows 1, 1,... Are closed and the air conditioner 7 is turned off. That is, in the determination diagram C, the windows 1, 1,... Are closed in any case, and it is determined only whether the air conditioner 7 is turned ON or OFF depending on the room temperature.

  If it is determined in step S22 that there is no rain, the humidity determination is performed using any one of the determination diagrams 1, 2, and 3 shown in FIG. 2 as in the case of the absence of the air conditioner described above (step S27). . Which of the determination diagrams 1, 2, and 3 is used is determined in advance by a program.

  As a result of the determination according to any one of the above determination diagrams 1 to 3, when it is determined that the state 1 is present, the presence / absence determination is performed (step S23) in the same manner as in the case of the rain described above. When the window is closed, the air conditioner 7 is turned off (step S24). When “present”, the temperature state is determined according to the determination diagram C of step S25, and when the room temperature is equal to or higher than the comfortable upper limit temperature TH. .. Are closed and the air conditioner 7 is turned on. When the room temperature is below the comfortable upper limit temperature TH, the windows 1, 1,... Are closed and the air conditioner 7 is turned off. That is, when it is determined as the state 1, the windows 1, 1,... Are closed regardless of the outside air temperature and the room temperature. When the state 2 is determined, a temperature state determination is performed according to a determination diagram A or a determination diagram B which will be described later, and the windows 1, 1,... May be opened depending on the outside air temperature and the room temperature. By performing such control, it is possible to prevent outdoor air with high humidity from flowing into the room and impairing indoor comfort. Since enthalpy is proportional to humidity, even if the determination is made by enthalpy, the same effect as when the determination is made by humidity can be obtained.

As a result of the humidity determination described above, when it is determined that the state 2 is determined, it is determined whether or not there is a person in the room (presence / absence determination) (step S28).
If it is determined as “absent”, the outside air temperature and the room temperature are applied to the determination diagram A shown in FIG. 9 (step S29), and the states of the windows 1, 1,... And the air conditioner 7 are determined (step S26). In the determination diagram A, when the outside air temperature is equal to or lower than the window closing temperature TC, when the room temperature is equal to or lower than the comfortable lower limit temperature TL, and when the room temperature is equal to or higher than the comfortable lower limit temperature TL and the outside air temperature is higher than the room temperature (A region in the figure). ), Windows 1, 1,... Are closed and the air conditioner 7 is turned off. When the room temperature is equal to or higher than the comfortable lower limit temperature TL and the outside air temperature is lower than the room temperature and higher than the comfortable lower limit temperature TL (B area in the figure), the windows 1, 1,.
When the outside air temperature is lower than the comfortable lower limit temperature TL and higher than the window closing temperature TC and the room temperature is higher than the comfortable lower limit temperature TL (C region in the figure), the windows 1, 1,. The air conditioner 7 is turned off. Thus, in the determination diagram A, the air conditioner 7 is always OFF, and only the windows 1, 1,... Are opened and closed according to the outside air temperature and the room temperature.

If it is determined as “present” in step S28, the outside air temperature and room temperature are applied to the determination diagram B shown in FIG. 10 (step S30), and the states of the windows 1, 1,... And the air conditioner 7 are determined (step S26). In the determination diagram B, when the outside air temperature is equal to or lower than the window closing temperature TC, when the room temperature is equal to or lower than the comfortable lower limit temperature TL, and when the room temperature is equal to or higher than the comfortable lower limit temperature TL and equal to or lower than the comfortable upper limit temperature TH (see FIG. (D area), windows 1, 1,... Are closed and the air conditioner 7 is turned off. When the outside air temperature is equal to or higher than the comfortable upper limit temperature TH and the room temperature is equal to or higher than the comfortable upper limit temperature TH (E region in the figure), the windows 1, 1,... Are closed and the air conditioner 7 is turned on. When the room temperature is above the comfortable upper limit temperature TH and the outside air temperature is above the comfortable lower limit temperature TL and below the comfortable upper limit temperature TH, and when the room temperature is above the comfortable minimum temperature TL and below the comfortable upper limit temperature TH, the outside air temperature is lower than the room temperature and below the comfortable lower limit temperature TL When it is high (F area in the figure), the windows 1, 1,... Are open and the air conditioner 7 is OFF.
Further, when the outside air temperature is not less than the window closing temperature TC and not more than the comfortable lower limit temperature TL and the room temperature is not less than the comfortable lower limit temperature TL (G region in the figure), the windows 1, 1,. Turn off. As described above, in the determination diagram B, the opening and closing of the windows 1, 1,... And the ON / OFF of the air conditioner 7 are interlocked according to the outside air temperature and the room temperature to maintain the room more comfortably.
When the states of the windows 1, 1,... And the air conditioner 7 are determined as described above, the loop process is terminated and the process returns to the control determination start.

FIG. 12 is a flowchart showing another example of the control flow of the centralized controller 6 when there is an air conditioner, and shows a case other than midsummer. When the control determination is started, a loop process is started (step S31), and then it is determined whether or not there is rainfall from the information obtained by the rain sensor 9 (step S32).
If it is determined that there is rain, it is determined whether or not there is a person in the room (step S33). If “absent”, the windows 1, 1,... Are closed and the air conditioner 7 is turned off (step S34). When “current”, the temperature state is determined according to the determination diagram C shown in FIG. 11 (step S35), and the state of the window and the air conditioner is determined (step S36). Up to this point, the control is the same as the control of the flowchart of FIG. 8 described above.

If it is determined that there is no rain in step S32, it is determined whether or not a predetermined period has elapsed after the rain (S37).
If it is determined in step S37 that a predetermined period has elapsed after the rain, it is determined whether or not there is a person in the room (step S38). If it is determined that the user is absent, the determination diagram A shown in FIG. The temperature and room temperature are applied (step S39), and the state of the windows 1, 1,... And the air conditioner 7 is determined (step S36). When it is determined as “present”, the outside air temperature and the room temperature are applied to the determination diagram B shown in FIG. 10 (step S40), and the states of the windows 1, 1,... And the air conditioner 7 are determined (step S36). The control flow from step S38 to step S36 via step S39 or step S40 is the same as the control flow from step S28 to step S29 via step S29 or step S30 in the flowchart of FIG. .

If it is determined in step S37 that the predetermined period has not elapsed since the rain, it is determined whether or not there is a person in the room (step S41). Are applied (step S42), and the state of the windows 1, 1,... And the air conditioner 7 is determined (step S36). The determination diagram D is lower than the comfortable upper limit temperature TH by dt4 + T, compared to the determination diagram B shown in FIG. 10, in which the upper limit of the outside air temperature in the region F where the windows 1, 1,. The difference is that the window opening temperature is lowered.
Since the humidity of the outside air becomes high after the rain, by reducing the window opening temperature in this way until the predetermined period has passed after the rain, the outside air with high humidity flows into the room and the indoor comfort is impaired. Can be prevented. According to this control, the outside humidity sensor 4 and the indoor humidity sensor 5 become unnecessary, and the cost can be reduced.
When it is determined in step S41 that the user is absent, the outside air temperature and room temperature are applied to the determination diagram D2 shown in FIG. 14 (step S43), and the states of the windows 1, 1,... And the air conditioner 7 are determined (step S36). The difference from the judgment diagram D is that there is no region E where the air conditioner 7 is turned on when the windows 1, 1,... Are closed, and that portion is a region D where the air conditioner 7 is turned off when the windows 1, 1,. Is a point.

FIG. 15 is a flowchart showing another example of the control flow of the centralized controller 6 in the case of the presence of an air conditioner, and shows a case in midsummer. The flow of control is the same as in the case other than midsummer shown in FIG. The difference is that the determination diagram in the temperature state determination (S40) when it is determined to be “present” when a predetermined period has elapsed after the rain is the determination diagram D shown in FIG. 13, and when it is determined to be “absent” The determination diagram in the temperature state determination (S39) of FIG. 14 is a determination diagram D2 shown in FIG. 14, and the window opening temperature is lower than in the case other than midsummer (determination diagrams A and B), and a predetermined period has elapsed after the rain. The determination diagram in the temperature state determination (S42) when it is determined as “present” when it is not present is the determination diagram E shown in FIG. 16, and the determination diagram in the temperature state determination (S43) when it is determined as “absent” Is a determination diagram E2 shown in FIG. 17, and the window opening temperature is further lowered by T2 as compared to the determination diagrams D and D2 at the time other than midsummer.
In midsummer, the humidity is generally higher than in non-midsummer, so by increasing the window opening temperature threshold in this way, high humidity outside air flows into the room during midsummer and the indoor comfort is impaired. To improve the comfort of midsummer.

  Next, the result of the simulation performed for the room temperature control system (with air conditioner) is shown. The simulation was performed by using automatic control windows in six windows of a one-story house as shown in FIG. 18 and using the AMeDAS weather data standard year (6/1 to 10/30) in Osaka. As an example of the present invention, the simulation is performed with temperature control (lower limit of open air outside temperature 20 ° C., upper limit 26 °) + outside air enthalpy constant value control (opening when outside air enthalpy falls below 60 kJ / kg ′), temperature control ( Window open outside temperature lower limit 20 ° C, upper limit 26 °) + enthalpy proportional control, temperature control (window open outside temperature lower limit 20 ° C, upper limit 26 °) + indoor enthalpy constant value control (indoor enthalpy is 60 kJ / kg ' Open window when lower), temperature control (lower limit of open air temperature 20 ° C, upper limit of 26 °) + constant humidity control of open air (open window when absolute humidity falls below 14g / kg '), temperature control (open window) As a comparative example, only air conditioner operation (no window opening) and only temperature control (no control based on humidity or enthalpy) were performed as comparative examples.

  FIG. 20 is a graph showing the cooling loads obtained by the above simulation. As shown in the figure, it can be seen that all the embodiments of the present invention can reduce the cooling load by approximately 20% or more as compared with the case of only the air-conditioner operation. The cooling load can be reduced in this way because the air conditioner 7 is turned off and the windows 1, 1,... Are opened when the outside air temperature decreases. Note that the cooling load of the embodiment of the present invention is larger than that in the case of only temperature control because the control is performed so that the windows 1, 1,... Are not opened when the humidity or enthalpy is high even when the outside air temperature decreases. This is because the time during which the windows 1, 1,... Are opened is shorter than in the case of only temperature control.

FIGS. 21-1 and 21-2 are plots of indoor temperature / humidity conditions when the windows are opened on the air diagram as a result of simulation based on hourly AMeDAS weather data. In the case of only the temperature control shown in FIG. 21-2 (f), there are many points with a relative humidity of 70% or more, but FIGS. 21-1 (a), (b), (c) and FIG. In the embodiments of the present invention shown in (d) and (e) of the present invention, it can be seen that there are almost no points with a relative humidity of 70% or more, and they are almost within the comfortable range. The comfortable range was PMV-0.5 to +0.5 and the relative humidity was 70% or less. PMV (Predicted Mean Vote) is defined by the ISO standard (ISO7730), and is calculated in consideration of air temperature, humidity, airflow, thermal radiation, metabolic rate, and amount of clothes. If the PMV value is between -0.5 and +0.5, 90% of people are comfortable.
FIG. 23 shows the ratio of the time during which the indoor temperature and humidity are within the comfortable range of the time when the window is open. As shown in the figure, in the case of only temperature control, the proportion of time within the comfortable range is 38.5%, whereas in the embodiment of the present invention, the proportion of time within the comfortable range is all. It turns out that it becomes 60% or more, and the ratio of comfortable time increases significantly.

FIG. 22 shows the results of an experiment conducted by installing the room temperature control system of the present invention in an actual building. The experiment was conducted from June 3 to July 22 with automatic control windows installed in 6 windows of a one-story house in Ena City. The experimental conditions were such that the lower limit of the outside temperature of the window opening was 18 ° C., the upper limit was 26 ° C., and after raining, the window opening temperature was lowered by 2 ° C. until the next morning. FIG. 22A is a plot of the outdoor temperature and humidity when the window is opened as a result of the experiment on the air diagram, and FIG. 22B is a comparative example and only temperature control is performed. Shows the case.
As can be seen from the figure, when control is performed to lower the window opening temperature for a certain period after the rain, it is understood that outside air with high enthalpy cannot enter the room as compared with the case of only temperature control.

  As described above, this room temperature control system includes two or more windows 1, 1,..., An outside air temperature sensor 2, an indoor temperature sensor 3, an outside air humidity sensor 4, an indoor humidity sensor 5, and control means (centralized controller). The control means 6 has a room temperature above the comfortable lower limit temperature TL and an outside air temperature above the window closing temperature TC, as shown in FIG. 3 in the case without an air conditioner and in FIGS. 9 and 10 in the case with an air conditioner. By opening the windows 1, 1,... When the temperature is lower than the room temperature, the room temperature can be comfortably controlled using the natural wind to the maximum. Further, the control means 6 is shown in FIGS. 8) and FIG. 2 (b) when the air conditioner is present, when the outside air humidity or the outside air enthalpy is higher than the room humidity or the room enthalpy, the room temperature is not less than the comfortable lower limit temperature TL and the outside air temperature is a window. When the closing temperature is above TC and below room temperature Window 1,1 also, to close the ..., since humid outside air can be prevented comfort of the room flows into the chamber is compromised, thereby comfort and energy saving.

  In addition, the room temperature control system includes two or more windows 1, 1,..., An outside air temperature sensor 2, an indoor temperature sensor 3, an outside air humidity sensor 4, and a control means 6. As shown in FIG. 3 and FIGS. 9 and 10 with an air conditioner, by opening the windows 1, 1,... When the room temperature is higher than the comfortable lower limit temperature TL and the outside air temperature is higher than the window closing temperature TC and lower than the room temperature. The room temperature can be controlled comfortably by making the best use of natural wind, and the control means are shown in FIGS. 1 and 2 (a) in the case without an air conditioner and in FIGS. 8 and 2 (a) in the case with an air conditioner. As shown, when the outside air humidity or the outside air enthalpy is higher than a predetermined value, the windows 1, 1, even when the room temperature is equal to or higher than the comfortable lower limit temperature TL and the outside temperature is equal to or higher than the window closing temperature TC and lower than the room temperature. … To close the outside, high humidity outside air flows into the room It is possible to prevent the aptitude is impaired, thereby comfortable and energy-saving. Since the indoor humidity sensor 5 becomes unnecessary, the system can be simplified.

  Further, the room temperature control system includes two or more windows 1, 1,..., An outside air temperature sensor 2, an indoor temperature sensor 3, an indoor humidity sensor 5, and a control means 6. As shown in FIG. 3 and FIGS. 9 and 10 with an air conditioner, by opening the windows 1, 1,... When the room temperature is higher than the comfortable lower limit temperature TL and the outside air temperature is higher than the window closing temperature TC and lower than the room temperature. Further, the room temperature can be controlled comfortably by making the best use of the natural wind, and the control means 6 is shown in FIGS. 1 and 2 (c) in the case without an air conditioner, and in FIGS. As shown in FIG. 2, when the room humidity or the room enthalpy is higher than a predetermined value, the windows 1 and 1 even when the room temperature is equal to or higher than the comfortable lower limit temperature TL and the outside air temperature is equal to or higher than the window closing temperature TC and lower than the room temperature. , ... to close the outside, high humidity outside air flows into the room It is possible to prevent the comfort is impaired, thereby comfort and energy saving. Since the outside humidity sensor 4 is not required, the system can be simplified.

  In addition, the room temperature control system includes two or more windows 1, 1,..., An outside air temperature sensor 2, an indoor temperature sensor 3, a rain sensor 9, and a control means 6. The control means 6 is a diagram in the case of no air conditioner. 9, As shown in Figs. 9 and 10 with air conditioner, open the window when the room temperature is higher than the comfortable lower limit temperature and the outside air temperature is higher than the window closing temperature and lower than room temperature. Thus, the room temperature can be controlled comfortably, and the control means can detect the rain when the rain sensor detects rain, as shown in FIGS. 4 and 5 when there is no air conditioner and FIGS. 12 and 13 when there is an air conditioner. By closing the window and lowering the window opening temperature for a predetermined period after the rain stops, it is possible to prevent the outside air with high humidity from flowing into the room and impairing the comfort in the room. . Since both the indoor humidity sensor 5 and the outside air humidity sensor 4 are unnecessary, the system can be further simplified. Compared to the time other than midsummer, when the summer is mid-summer, the window opening temperature when the predetermined period has elapsed after the rain is lowered, and the window opening temperature when the predetermined period has not elapsed since the rain is further lowered. Comfort can be further improved.

  The room temperature control system further includes an air conditioner 7. The control means 6 turns off the air conditioner 7 when the windows 1, 1,... Are opened, and the windows 1, 1,. Since the air conditioner is turned on at the time, the comfort of the room is further improved by the operation of the air conditioner 7, and the operation time of the air conditioner 7 is reduced as much as possible by incorporating the natural wind, thereby saving energy.

  The present invention is not limited to the embodiments described above. Although the embodiment is provided with an air conditioner, the air conditioner may not be provided and only the opening and closing of the window may be performed. The rain sensor and the control based on the rain sensor signal can be omitted (except for the invention according to claim 4). Moreover, although the thing of embodiment sets the comfortable upper limit temperature TH and the comfortable lower limit temperature TL of room temperature, you may set only one preset temperature. In the embodiment, the temperature and humidity in the one-story building are collectively controlled, but the temperature and humidity of a plurality of rooms in one building are controlled for each room, and each of the buildings in a plurality of floors is controlled. You may control for every floor. The flowchart can be changed as appropriate. For example, it is possible to determine humidity or enthalpy after performing temperature state determination. In the embodiment, the window opening temperature when the predetermined period has not elapsed since the rain is different between the time other than midsummer and the time of midsummer. However, the temperature can be the same regardless of the season. The control means may open the window when the room temperature is equal to or higher than the comfortable lower limit temperature and the outside air temperature is equal to or higher than the window closing temperature and falls below the room temperature by a predetermined window opening delay temperature dt. By setting dt, it is possible to prevent hunting in which the window is opened and closed in a short time. Similarly, with respect to humidity or enthalpy, hunting can be prevented by providing a predetermined threshold value between the condition for the state 1 and the condition for the state 2. The system of the present invention can be applied not only to a house but also to any building.

DESCRIPTION OF SYMBOLS 1 Window 2 Outside temperature sensor 3 Indoor temperature sensor 4 Outside air humidity sensor 5 Indoor humidity sensor 6 Centralized controller (control means)
7 Air conditioner 8 Operation panel 9 Rain sensor

Claims (5)

  Two or more windows, an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, an indoor humidity sensor, and a control means are provided, and the control means has a room temperature above the comfortable lower limit temperature and an outside air temperature above the window closing temperature. When opening the window when the temperature is low and the outside air humidity or outside air enthalpy is higher than the room humidity or indoor enthalpy, the room temperature is higher than the comfortable lower limit temperature and the outside air temperature is higher than the window closing temperature and lower than the room temperature. A room temperature control system characterized by closing the window.   Two or more windows, an outside air temperature sensor, an indoor temperature sensor, an outside air humidity sensor, and a control means are provided, and the control means has a window when the room temperature is equal to or higher than the comfortable lower limit temperature and the outside air temperature is equal to or higher than the window closing temperature and lower than the room temperature. When the outside air humidity or outside air enthalpy is higher than the specified value, the window should be closed even when the room temperature is above the comfortable minimum temperature and the outside air temperature is above the window closing temperature and below room temperature. A featured room temperature control system.   Two or more windows, an outside air temperature sensor, an indoor temperature sensor, an indoor humidity sensor, and a control means are provided, and the control means is configured to open the window when the room temperature is equal to or higher than the comfortable lower limit temperature and the outside air temperature is equal to or higher than the window closing temperature and lower than the room temperature. When the room humidity or the room enthalpy is higher than the specified value, the window should be closed even when the room temperature is above the lower comfortable temperature and the outside air temperature is above the window closing temperature and below the room temperature. A featured room temperature control system.   And two or more windows, an outside air temperature sensor, an indoor temperature sensor, a rain sensor, and a control means. The control means opens the window when the room temperature is above the comfortable lower limit temperature and the outside air temperature is above the window closing temperature and below the room temperature. A room temperature control system that opens and closes the window when the rain sensor detects rain, and lowers the window opening temperature for a predetermined period after the rain stops.   An air conditioner is further provided, and the control means turns off the air conditioner when the window is opened, and turns on the air conditioner when the room temperature is equal to or higher than a predetermined temperature and the window is closed. 4. The room temperature control system according to 4.