Dew condensation suppression system and program

Abstract

To provide a dew condensation suppression system and a program capable of suppressing occurrence of dew condensation in a space inside a wall.SOLUTION: A dew condensation suppression system includes a temperature sensor 12 for acquiring a surface temperature of a wall material 111 in an internal space 100 of a partition wall 11, an in-wall temperature and humidity sensor 13 for acquiring a temperature and relative humidity in the internal space 100 of the partition wall 11, an air conditioner 14 for feeding air to a living room 10 and adjusting a room temperature of the living room 10, and a controller 15 for controlling a wind direction of the air conditioner 14. The controller 15 executes direction acquiring processing for acquiring a direction where the partition wall 11 is located with respect to the air conditioner 14, in-wall dew point temperature calculating processing for calculating a dew point temperature on the basis of the room temperature and the relative humidity acquired by the in-wall temperature and humidity sensor 13, and wind direction control processing for controlling so that the wind direction of the air conditioner 14 is not directed toward the partition wall 11 based on the acquired direction on the condition that the dew point temperature is higher than the surface temperature.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a dew condensation suppression system and program for suppressing dew condensation generated on the surface of a wall material in a space within a partition wall adjacent to a living room with a partition wall therebetween.

Background Art

[0002] In the air conditioning system described in Patent Document 1, in a room of a space to be air-conditioned and another room adjacent thereto that is not directly air-conditioned, outside air is supplied and exhausted to suppress the occurrence of dew condensation in the room that is not directly air-conditioned.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a living room of a house, there is a space within a partition wall. In the space within the partition wall, for example, electrical wiring and the like are located. Also, the space within the partition wall may communicate with the outside through ventilation holes or the like. When warm and humid outside air in summer enters the space within the partition wall and contacts a wall material or the like that constitutes the partition wall being cooled by air conditioning, dew condensation may occur on the surface of the wall material.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a dew condensation suppression system and program for suppressing the occurrence of dew condensation in the space within the wall.

Means for Solving the Problems

[0006] (1) The dew condensation suppression system according to the present invention includes a living room, a partition wall having a wall material that partitions the living room, a temperature sensor that acquires the surface temperature of the wall material in the internal space of the partition wall, a wall internal temperature and humidity sensor that acquires the temperature and relative humidity in the internal space of the partition wall, an air conditioner that sends out air to the living room to adjust the room temperature of the living room, and a controller that controls the wind direction of the air conditioner. The controller executes an in-wall dew point temperature calculation process for calculating a dew point temperature based on the room temperature and relative humidity acquired by the in-wall temperature and humidity sensor, and a wind direction control process for restricting the operation range of the wind direction so that the wind direction of the air conditioner does not face the partition wall on the condition that the dew point temperature is higher than the surface temperature, thereby controlling the wind direction of the air conditioner.

[0007] When the dew point temperature in the internal space of the partition wall is higher than the surface temperature of the wall material, the wind direction of the air conditioner is controlled so as not to face the partition wall. Thereby, it is suppressed that the wall material is cooled by the air sent out from the air conditioner. By suppressing the decrease in the surface temperature of the wall material, dew condensation on the surface of the wall material is suppressed.

[0008] (2) After executing the wind direction control process, the controller may further execute a temperature increase process for increasing the temperature of the air sent out from the air conditioner on the condition that the dew point temperature is higher than the surface temperature.

[0009] By increasing the temperature of the air sent out, the surface temperature of the wall material rises. By the surface temperature of the wall material rising, dew condensation on the surface of the wall material is suppressed.

[0010] (3) The dew condensation suppression system further includes a through hole that penetrates the wall material and communicates the internal space of the partition wall with the living room, a differential pressure sensor that acquires the difference between the air pressure in the internal space of the partition wall and the outdoor air pressure, and a first fan located at an opening of the outer wall that partitions the living room and the outdoors. After executing the wind direction control process, the controller may further execute a first fan control process of driving the first fan to introduce outside air from the outdoors into the living room on the condition that the dew point temperature is higher than the surface temperature and the outdoor pressure is higher than the air pressure in the internal space of the partition wall.

[0011] By introducing outside air into the living room using the first fan located on the outer wall, the pressure inside the living room becomes positive with respect to the outdoors and the internal space of the partition wall. The air dried (dehumidified) by the air conditioner flows into the internal space of the partition wall through the through hole, thereby suppressing the inflow of outside air into the internal space of the partition wall. Since the dew point temperature in the internal space of the partition wall decreases, dew condensation on the surface of the wall material is suppressed.

[0012] (4) The dew condensation suppression system further includes a room temperature and humidity sensor that acquires the room temperature and relative humidity in the living room, and a second fan located at an opening of the partition wall. The controller calculates the absolute humidity in the living room based on the room temperature and relative humidity acquired by the room temperature and humidity sensor, calculates the absolute humidity in the internal space of the partition wall based on the room temperature and relative humidity acquired by the in-wall temperature and humidity sensor, and after executing the first fan control process, drives the second fan to introduce air from the living room into the internal space of the partition wall on the condition that the dew point temperature is higher than the surface temperature and the absolute humidity in the living room is lower than the absolute humidity in the internal space of the partition wall.

[0013] Since the air in the living room, which has a lower absolute humidity than the internal space of the partition wall, flows into the internal space of the partition wall, the absolute humidity in the internal space of the partition wall decreases. The decrease in the absolute humidity in the internal space of the partition wall suppresses condensation on the surface of the wall material.

[0014] (5) The condensation suppression system further includes an outside air temperature and humidity sensor that acquires the temperature and relative humidity of the outside air. The controller executes an outside air absolute humidity calculation process for calculating the absolute humidity in the outside air based on the temperature and relative humidity acquired by the outside air temperature and humidity sensor, an outside air dew point temperature calculation process for calculating the dew point temperature in the outside air based on the temperature and relative humidity acquired by the outside air temperature and humidity sensor, and an absolute humidity calculation process for calculating the absolute humidity in the internal space of the partition wall based on the room temperature and relative humidity acquired by the wall internal temperature and humidity sensor. The wind direction control process may be executed on the condition that the absolute temperature in the outside air is higher than the absolute temperature in the internal space of the partition wall and the dew point temperature in the outside air is higher than the surface temperature.

[0015] When the absolute humidity of the outside air is higher than the absolute humidity in the internal space of the partition wall and the dew point temperature of the outside air is higher than the surface temperature of the wall material of the partition wall, the wind direction of the air conditioner is controlled so as not to face the partition wall. In a situation where condensation occurs due to the inflow of outside air into the internal space of the partition wall, the wind sent from the air conditioner can be prevented from facing the partition wall in advance, so that condensation on the surface of the wall material can be suppressed.

[0016] (6) The condensation suppression system further includes a wind speed sensor that is located on the surface of the wall material on the living room side and acquires the wind speed on the surface of the partition wall on the living room side. The controller may control the wind direction from the air conditioner toward the partition wall so that the wind speed acquired by the wind speed sensor is equal to or lower than a predetermined value in the wind direction control process.

[0017] By obtaining the wind speed on the surface of the wall material on the living room side, it is possible to control the direction of the air from the air conditioner so that it does not face the partition wall.

[0018] (7) The program according to the present invention is a program that operates as a dew condensation suppression system including a living room, a partition wall having a wall material partitioning the living room, a temperature sensor that obtains the surface temperature of the wall material in the internal space of the partition wall, a wall internal temperature and humidity sensor that obtains the room temperature and relative humidity in the internal space of the partition wall, an air conditioner that sends air to the living room to adjust the room temperature of the living room, and a controller that controls the air direction of the air conditioner. The controller is caused to execute an in-wall dew point temperature calculation process for calculating a dew point temperature based on the room temperature and relative humidity obtained by the in-wall temperature and humidity sensor, and a wind direction control process for controlling the air direction of the air conditioner so that the air direction does not face the partition wall by restricting the operation range of the air direction on the condition that the dew point temperature is higher than the surface temperature.

Effect of the Invention

[0019] According to the present invention, it is possible to provide a dew condensation suppression system and a program that suppress the occurrence of dew condensation in the space inside the wall.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. It should be noted that the embodiments described below are merely examples in which the present invention is embodied, and it goes without saying that the embodiments can be appropriately changed without changing the gist of the present invention.

[0022] Hereinafter, as directions related to the dew condensation suppression system 1, an up-down direction 7, a front-rear direction 8, and a left-right direction 9 are shown. The front-rear direction 8 and the left-right direction 9 are both directions orthogonal to the up-down direction 7 and are orthogonal to each other. The up-down direction 7 is the direction in which the partition wall 11 stands up and is the direction from the floor board 101 to the ceiling board 102 of the living room 10. The left-right direction 9 is the direction along the floor board 101 of the living room 10 and along the surfaces of the wall materials 111 and 112 of the partition wall 11. The front-rear direction 8 is the direction orthogonal to the surfaces of the wall materials 111 and 112 of the partition wall 11 and is the thickness direction of the wall materials 111 and 112.

[0023] [Installation Mode of Dew Condensation Suppression System 1] As shown in FIGS. 1 and 2, the dew condensation suppression system 1 suppresses dew condensation on the surface of the wall material 111 inside the building, which is generated by the cooling of the air conditioner 14 used in summer, for example. The building is a structure whose interior is partitioned by partition walls. The dew condensation suppression system 1 can be used in buildings such as detached houses, apartment houses, and commercial facilities. The dew condensation suppression system 1 includes a living room 10, a partition wall 11, a temperature sensor 12, a wall temperature and humidity sensor 13, an air conditioner 14, a through hole 16, a differential pressure sensor 17, a first fan 18, a living room temperature and humidity sensor 19, a second fan 20, an outside air temperature and humidity sensor 21, a wind speed sensor 22, and a controller 15 (see FIG. 6).

[0024] As shown in FIG. 1, the living room 10 is, for example, a rectangular room. In the present embodiment, as an example, the living room on the first floor of a detached house will be described. The living room is partitioned by a floor board 101, a ceiling board 102, and four walls (a front wall 103, a rear wall 104, a right wall 105, and a left wall 106). The floor board 101 of the living room 10 is attached to a subfloor not shown, and a space under the floor is located below the floor board 101. The outside air from the outside can be introduced into the space under the floor through, for example, ventilation holes not shown. The ceiling board 102 of the living room 10 is attached to a soffit suspended from a beam using, for example, a hanger not shown. A space is located above the ceiling board 102. The outside air from the outside can be introduced into the space above the ceiling board 102 through, for example, ventilation holes not shown.

[0025] In the living room 10 in the present embodiment, the front wall 103 and the left wall 106 are outer walls. The outer surfaces of the front wall 103 and the left wall 106 face the outside. An opening 31 (see FIG. 2) penetrating in the thickness direction is located in the front wall 103. The rear wall 104 and the right wall 105 are partition walls 11 that partition the living room 10 from other rooms, corridors, etc. inside the building.

[0026] In the partition wall 11, a stud is combined with a runner to which a frame body (not shown) is fixed to the floor board 101 and the ceiling board 102. The partition wall 11 has a structure in which a pair of wall materials 111, 112 (such as gypsum boards and wallpapers) are attached to both surfaces (front surface and rear surface) of the frame body. A space having a width equal to the thickness of the frame body for accommodating electrical wiring, optical wiring, etc. is located between the pair of wall materials 111, 112. Hereinafter, the said space is also referred to as the internal space 100.

[0027] An opening 110 that communicates the internal space 100 with the space above the ceiling board 108 is located in the ceiling board 108 of the internal space 100 and the runner located above. Electrical wiring, optical wiring, etc. are located in the opening 110, for example. Also, an opening 109 that communicates the internal space with the under-floor space is located in the floor board 107 of the internal space and the runner located below. Pipes, etc. are located in the opening 109, for example. The opening 109 also has a function as a ventilation hole for passing air between the outside and the internal space 100 through the under-floor space or the space above the ceiling board.

[0028] In FIG. 1, for the rear wall 104, a pair of wall materials 111, 112 and the internal space 100 are shown. On the other hand, for the right wall 105, the illustration of a pair of wall materials 111, 112 and the internal space 100 is omitted. Also, an opening 161 for entering and leaving the living room 10 is located in the right wall 105. A door 162 is located in the opening 161.

[0029] The temperature sensor 12 is located in the internal space 100 of the partition wall 11. The temperature sensor 12 is located, for example, on the surface (the surface facing the rear) of the wall material 111. The temperature sensor 12 acquires the surface temperature of the wall material 111 located in the front and outputs an electrical signal according to the acquired surface temperature. The temperature sensor 12 is, for example, a sensor that measures the resistance value of a resistor that changes with temperature, or an infrared sensor, etc.

[0030] The in-wall temperature and humidity sensor 13 is located in the internal space 100 of the partition wall 11. The in-wall temperature and humidity sensor 13 acquires the temperature and relative humidity of the air located in the internal space 100, and outputs an electrical signal according to the acquired relative humidity. The in-wall temperature and humidity sensor 13 is a combination of a temperature sensor and a humidity sensor. The humidity sensor is, for example, a resistive humidity sensor that captures moisture adsorbed and desorbed by a humidity-sensitive material as electrical resistance, or a capacitive humidity sensor that captures moisture adsorbed and desorbed by a humidity-sensitive material as capacitance, etc.

[0031] The air conditioner 14 is a so-called air conditioner. The air conditioner 14 is a device that sends out wind (cold air) into the living room 10 by heat exchange between external air and a refrigerant, and adjusts the room temperature of the living room 10. The air conditioner 14 is located within the living room 10. In the present embodiment, the air conditioner 14 is fixed to the upper part of the left wall 106 within the living room 10. As shown in FIG. 3, the air conditioner 14 is configured to be able to change the direction of the wind it sends out. The air conditioner 14 is configured to be able to change the direction of the wind it sends out, for example, by changing the angle of louvers (not shown). Further, the air conditioner 14 is configured to be able to change the temperature of the wind it sends out. The air conditioner 14 is configured to be able to change the temperature of the wind it sends out, for example, by adjusting the amount of compression of the refrigerant.

[0032] The through-hole 16 penetrates the front wall material 111 in the partition wall 11 to communicate the living room 10 and the internal space 100. In the present embodiment, the through-hole 16 is, for example, a hole where the power outlet panel 41 is attached.

[0033] The differential pressure sensor 17 is located, for example, in the internal space 100 of the partition wall 11. The differential pressure sensor 17 acquires the differential pressure between the air in the internal space 100 and the outside air adjacent to the internal space 100 through the opening 109, and outputs an electrical signal according to the acquired differential pressure. The differential pressure sensor 17 acquires the differential pressure, for example, by acquiring the pressure of the air in the internal space 100 and the pressure of the outside air, and calculating the difference therebetween.

[0034] The first fan 18 is located at the opening 31 (see FIG. 2) of the outer wall (front wall 103) that partitions the living room 10 from the outdoors. The first fan 18 is a so-called ventilation fan. As shown in FIG. 4, the first fan 18 enables the introduction of air from the outdoors into the living room 10 by rotation.

[0035] The indoor temperature and humidity sensor 19 is located inside the living room 10. The indoor temperature and humidity sensor 19 acquires the indoor temperature and relative humidity in the living room 10 and outputs an electrical signal according to the acquired indoor temperature and relative humidity. The wall temperature and humidity sensor 13 is a combination of a temperature sensor and a humidity sensor.

[0036] The second fan 20 is located at the opening 32 of the wall material 111 on the living room 10 side in the partition wall 11. The second fan 20 is a so-called ventilation fan. As shown in FIG. 5, the second fan 20 enables the introduction of air from the living room 10 into the internal space 100 by rotation.

[0037] The outside air temperature and humidity sensor 21 is located outside the living room 10. The outside air temperature and humidity sensor 21 is located, for example, on the outer surface of the front wall 103. The outside air temperature and humidity sensor 21 acquires the temperature and relative humidity of the outside air and outputs an electrical signal according to the acquired temperature and relative humidity. The outside air temperature and humidity sensor 21 is a combination of a temperature sensor and a humidity sensor.

[0038] The wind speed sensor 22 is located on the surface (the surface facing forward) on the living room 10 side of the wall material 111 inside the living room 10. The wind speed sensor 22 is located at a plurality of positions on the surface of the wall material 111, for example. The wind speed sensor 22 uses a resistor whose resistance value changes with temperature, converts the change in resistance value into wind speed, acquires the wind speed, and outputs an electrical signal according to the acquired wind speed. The wind speed sensor 22 may be located at a plurality of positions on the surface of the wall material 111.

[0039] In the living room 10, a controller 15 is arranged. As shown in FIG. 6, the controller 15 is one in which a CPU 151, a ROM 152, a RAM 153, an EEPROM 154, an ASIC 155, etc. are connected by a bus so as to be capable of data communication. By the CPU 151 executing the program stored in the ROM 152 and the ASIC 155 performing a specific function set, the operation of the dew condensation suppression system 1 is controlled. The controller 15 is electrically connected to a temperature sensor 12, an in-wall temperature and humidity sensor 13, an air conditioner 14, a differential pressure sensor 17, a living room temperature and humidity sensor 19, an outside air temperature and humidity sensor 21, a wind speed sensor 22, and motors 23, 24.

[0040] The EEPROM 154 stores the set temperature of the living room 10 that is preset when the air conditioner 14 operates. The EEPROM 154 stores wind direction information, which is information on the wind direction of the wind sent from the air conditioner 14, in the wind direction control process described later. The EEPROM 154 stores the target value of the temperature when changing the temperature sent from the air conditioner 14. The EEPROM 154 stores a program for wind direction control processing for controlling the wind direction of the wind sent from the air conditioner 14. The EEPROM 154 stores a program for temperature control processing for controlling the temperature of the wind sent from the air conditioner 14. The EEPROM 154 stores programs for first fan control processing and second fan control processing for controlling the first fan 18 and the second fan 20 by controlling the operation of the motors 23, 24. The EEPROM 154 stores the target value for raising the room temperature of the living room 10 set in the temperature control process, variables W, P1, P2, P3, P4, etc. The EEPROM 154 stores the relational expression of the saturated water vapor pressure calculated based on the temperature. The EEPROM 154 stores the relational expression of the water vapor pressure in the air calculated based on the saturated water vapor pressure and the relative humidity. The EEPROM 154 stores the relational expression of the dew point temperature based on the water vapor pressure in the air. The EEPROM 154 stores the relational expression of the saturated water vapor amount based on the saturated water vapor pressure and the temperature. The EEPROM 154 stores a predetermined value that is used as a wind speed threshold value in the wind direction control process.

[0041] Here, the wind direction information is information on the wind direction preset so as not to directly blow the wind from the air conditioner 14 against the position of the wall material 111 of the partition wall 11. The wind direction information is, for example, information indicating the horizontally movable range M (for example, the range indicated by the limit positions A1 and A2 of the changeable angle in FIG. 3) of the changeable wind direction of the air conditioner 14 as shown in FIG. 3. The wind direction information includes a plurality of movable ranges in which the limit position A1 closer to the partition wall 11 approaches the limit position A2 farther from the partition wall 11. That is, the wind direction information includes information on a plurality of movable ranges in which the movable range M is gradually reduced without changing the position of the limit position A2. For example, as shown in FIG. 3, as the wind direction information, the information on the movable range M having the limit position A1 and the limit position A2, the movable range M1 in which the limit position A1 is moved to the limit position A3, the movable range M2 in which the limit position A1 is moved to the limit position A4, and further, the limit position A1 exceeds the limit position A4 and gradually approaches A2 to narrow the movable range.

[0042] The target value for raising the room temperature of the living room 10 is a value indicating the increase range of the set temperature of the air conditioner 14. The target value for raising the room temperature of the living room 10 is a predetermined value such as +0.5°C, +1°C, etc.

[0043] The variable W is an integer and is a variable corresponding to each of the plurality of movable ranges. The variable W is used when selecting the movable range. The variable W stores 0 as an initial value.

[0044] The variables P1, P2, P3, and P4 are integers. The variables P1, P2, P3, and P4 are variables indicating the implementation status of the wind direction control process, the temperature increase control process, the first fan control process, and the second fan control process, which will be described later. The variables P1, P2, P3, and P4 all store 0 as an initial value.

[0045] Note that the controller 15 may execute various processes only by the CPU 151. The controller 15 may execute various processes only by the ASIC 155. The controller 15 may implement a plurality of CPUs 151 that share and execute each process. The controller 15 may implement a plurality of ASICs 155 that share and execute each process.

[0046] [Operation of the dew condensation suppression system 1] Next, the operation of the dew condensation suppression system 1 will be described with reference to the flowcharts of FIGS. 7 to 11. As shown in FIG. 7, first, the controller 15 determines whether or not the operation of the air conditioner 14 has started (step S1). If the operation of the air conditioner 14 has started (step S1_YES), the process proceeds to step S2. If the operation of the air conditioner 14 has not started (step S1_NO), the process of the dew condensation suppression system 1 ends. Note that the air conditioner 14 operates while controlling the air volume, the wind speed, etc. based on the set temperature of the living room 10 stored in the EEPROM 154, for example.

[0047] In step S2, the controller 15 acquires the surface temperature of the wall material 111 of the partition wall 11 by receiving an electric signal corresponding to the temperature acquired by the temperature sensor 12. The controller 15 acquires the temperature and relative humidity of the air in the internal space 100 by receiving an electric signal from the in-wall temperature and humidity sensor 13 (step S3). Then, the controller 15 executes pre-suppression processing. The pre-suppression processing will be described later (step S4). After the pre-suppression processing, the process proceeds to step S5.

[0048] In step S5, the controller 15 calculates the dew point temperature of the internal space 100 based on the acquired temperature and relative humidity of the air in the internal space 100. The dew point temperature is obtained, for example, as follows. The controller 15 reads out the relational expression of the saturated water vapor pressure from the EEPROM 154. The controller 15 substitutes the temperature of the air in the internal space 100 into the relational expression of the saturated water vapor pressure to calculate the saturated water vapor pressure. The controller 15 reads out the relational expression of the water vapor pressure in the air from the EEPROM 154. The controller 15 substitutes the calculated saturated water vapor pressure and the relative humidity of the internal space 100 into the relational expression of the water vapor pressure in the air to calculate the water vapor pressure in the air. The controller 15 acquires the relational expression of the dew point temperature from the EEPROM 154. The controller 15 substitutes the calculated water vapor pressure into the relational expression of the dew point temperature to calculate the dew point temperature.

[0049] The controller 15 determines whether the surface temperature of the wall material 111 is lower than the calculated dew point temperature (step S6). If the surface temperature is lower than the dew point temperature (step S6_YES), the process proceeds to step S7. If the surface temperature is higher than the dew point temperature (step S6_NO), the process proceeds to step S17.

[0050] In step S7, the controller 15 determines whether the air direction control process of the air conditioner 14 has already been performed. That is, the controller 15 determines whether the process of step S11 has been performed. The controller 15 reads out the variable P1 from the EEPROM 154. When the variable P1 is 0, the controller 15 determines that the air direction control process has not been performed. When the variable P1 is 1, the controller 15 determines that the air direction control process has been performed. If the air direction control process has been performed (step S7_YES), the process proceeds to step S8. If the air direction control process has not been performed (step S7_NO), the process proceeds to step S11.

[0051] In step S11, the controller 15 performs the air direction control process. The details of the air direction control process will be described later. The process proceeds to step S16.

[0052] In step S8, the controller 15 determines whether the temperature control process has already been performed. That is, the controller 15 determines whether the process of step S12 has been completed. The controller 15 acquires the variable P2 from the EEPROM 154. When the variable P2 is 0, the controller 15 determines that the temperature control process has not been performed. When the variable P2 is 1, the controller 15 determines that the temperature control process has been performed. If the temperature control process has been performed (step S8_YES), the process proceeds to step S9. If the temperature control process has not been performed (step S8_NO), the process proceeds to step S12.

[0053] In step S12, the controller 15 performs the temperature control process. The controller 15 acquires from the EEPROM 154 the set temperature of the living room 10 and the target value which is the rising width for raising the room temperature of the living room 10. The controller 15 sets, as the new set temperature of the air conditioner 14, the temperature obtained by adding the acquired target value to the room temperature of the living room 10. By operating the air conditioner 14 based on the new set temperature, the temperature of the air sent out from the air conditioner 14 rises. The air conditioner 14 raises the temperature of the air sent out, for example, by adjusting the amount of compression of the refrigerant based on the set temperature. Thereafter, the controller 15 increments the variable P2 and stores it in the EEPROM 154 (step S13). Thereafter, the process proceeds to step S16.

[0054] In step S9, the controller 15 determines whether the first fan 18 has been operated. That is, the controller 15 determines whether the process of step S14 has been performed. The controller 15 acquires the variable P3 from the EEPROM 154. When the variable P3 is 0, the controller 15 determines that the first fan control process has not been performed. When the variable P3 is 1, the controller 15 determines that the first fan control process has been performed. If the control process of the first fan 18 has been performed (step S9_YES), the process proceeds to step S10. If the first fan control process has not been performed (step S9_NO), the process proceeds to step S14.

[0055] In step S14, the controller 15 performs the first fan control process. Details of the first fan control process will be described later. Thereafter, the process proceeds to step S16.

[0056] In step S10, the controller 15 determines whether the second fan control process has been performed. That is, the controller 15 determines whether the process of step S15 has been performed. The controller 15 acquires the variable P4 from the EEPROM 154. When the variable P4 is 0, the controller 15 determines that the second fan control process has not been performed. When the variable P4 is 1, the controller 15 determines that the second fan control process has been performed. If the second fan control process has been performed (step S10_YES), the process proceeds to step S15. If the second fan control process has not been performed (step S10_NO), the process proceeds to step S16.

[0057] In step S15, the controller 15 performs the second fan control process. Details of the second fan control process will be described later. Thereafter, the process proceeds to step S16.

[0058] In step S16, the controller 15 determines whether a predetermined time has elapsed since the end of the wind direction control process, the temperature control process, the first fan control process, or the second fan control process. Here, the controller 15 waits until the effects on the surface temperature by the wind direction control process, the temperature control process, the first fan control process, and the second fan control process are expected to appear. The waiting time is preset, for example, within the range of 5 minutes to 10 minutes. If the waiting time has elapsed (step S16_YES), the process proceeds to step S19. If the waiting time has not elapsed (step S16_NO), step S16 is repeated until the waiting time elapses.

[0059] In step S17, the controller 15 determines whether there is any ongoing control. Specifically, the controller 15 determines whether there is a variable among the variables P1, P2, P3, and P4 in which 0 is not stored. If there is ongoing control (step S17_YES), the process proceeds to step S18. If there is no ongoing control (step S17_NO), the process proceeds to step S19.

[0060] In step S18, the controller 15 stops all ongoing controls. The controller 15 resets (sets to the numerical value "0") the variables W, P1, P2, P3, and P4 and stores the variables W, P1, P2, P3, and P4 in the EEPROM 154. The process proceeds to step S19.

[0061] In step S19, the controller 15 determines whether the air conditioner 14 has been stopped. If the air conditioner 14 has been stopped (step S19_YES), the process proceeds to step S20. If the air conditioner 14 has not stopped (step S19_NO), the process returns to step S2.

[0062] In step S20, the controller 15 stops all the operations in progress. The controller 15 resets the variables W, P1, P2, P3, P4 and stores the variables W, P1, P2, P3, P4 in the EEPROM 154. Thereby, the processing of this flow ends.

[0063] [Preventive suppression processing] Next, the flow of the preventive suppression processing will be described with reference to the flowchart of FIG. 8. The pre-control processing is a process implemented in the dew condensation suppression system 1 to make it difficult for dew condensation to occur in advance in a situation where the dew point temperature of the outside air rises and dew condensation is likely to occur on the surface of the wall material 111 of the partition wall 11.

[0064] The controller 15 acquires the temperature and relative humidity of the outside air based on the electrical signal received from the outside air temperature and humidity sensor 21 (step S41). The controller 15 calculates the absolute humidity of the outside air from the acquired temperature and relative humidity of the outside air (step S42). The absolute humidity is obtained, for example, as follows. First, the controller 15 reads out the relational expression of the saturated water vapor pressure calculated based on the temperature from the EEPROM 154. The controller 15 substitutes the temperature of the outside air into the read relational expression of the saturated water vapor pressure to calculate the saturated water vapor pressure. The controller 15 reads out the relational expression of the saturated water vapor amount based on the saturated water vapor pressure and temperature from the EEPROM 154. The controller 15 substitutes the calculated saturated water vapor pressure and the temperature of the outside air into the relational expression of the saturated water vapor amount to calculate the saturated water vapor amount. The controller 15 calculates the product of the calculated saturated water vapor amount and the relative humidity of the outside air as the absolute humidity.

[0065] The controller 15 calculates the dew point temperature of the outside air from the acquired temperature and relative humidity of the outside air (step S43). The dew point temperature is obtained, for example, as follows. The controller 15 reads out the relational expression of the saturated water vapor pressure from the EEPROM 154. The controller 15 substitutes the temperature of the outside air into the relational expression of the saturated water vapor pressure to calculate the saturated water vapor pressure. The controller 15 reads out the relational expression of the water vapor pressure in the air from the EEPROM 154. The controller 15 substitutes the calculated saturated water vapor pressure and the relative humidity of the outside air into the relational expression of the water vapor pressure in the air to calculate the water vapor pressure in the air. The controller 15 acquires the relational expression of the dew point temperature from the EEPROM 154. The controller 15 substitutes the calculated water vapor pressure into the relational expression of the dew point temperature to calculate the dew point temperature.

[0066] The controller 15 calculates the absolute humidity of the internal space 100 from the acquired temperature and relative humidity of the internal space 100 (step S44). The absolute humidity is obtained, for example, as follows. First, the controller 15 reads out the relational expression of the saturated water vapor pressure calculated based on the temperature from the EEPROM 154. The controller 15 substitutes the temperature of the internal space 100 into the read relational expression of the saturated water vapor pressure to calculate the saturated water vapor pressure. The controller 15 reads out the relational expression of the amount of saturated water vapor based on the saturated water vapor pressure and temperature from the EEPROM 154. The controller 15 substitutes the calculated saturated water vapor pressure and the temperature of the internal space 100 into the relational expression of the amount of saturated water vapor to calculate the amount of saturated water vapor. The controller 15 calculates the product of the calculated amount of saturated water vapor and the relative humidity of the internal space 100 as the absolute humidity.

[0067] The controller 15 determines whether the absolute humidity of the outside air is equal to or greater than the absolute humidity of the internal space 100 (step S45). If the absolute humidity of the outside air is equal to or greater than the absolute humidity of the internal space 100 (step S45_YES), the process proceeds to step S46. If the absolute humidity of the outside air is less than the absolute humidity of the internal space 100, the pre-control process ends.

[0068] In step S46, the controller 15 determines whether the dew point temperature of the outside air is equal to or higher than the surface temperature of the wall material 111 of the partition wall 11 (step S47). If the dew point temperature of the outside air is equal to or higher than the surface temperature (step S47_YES), the process proceeds to step S47. If the dew point temperature of the outside air is lower than the surface temperature (step S47_NO), the pre-control process ends.

[0069] In step S47, since condensation occurs due to the inflow of outside air into the internal space 100, the controller 15 executes a wind direction control process. Details of the wind direction control process will be described later. Thereby, the pre-control process ends.

[0070] [Wind Direction Control Process] Next, the flow of the wind direction control process will be described with reference to the flowchart of FIG. 9. The wind direction control process is a process implemented in the condensation suppression system 1 to suppress the wind from hitting the wall material 111 of the partition wall 11 by controlling the wind direction of the wind sent from the air conditioner 14. By preventing the wind from directly hitting the wall material 111, the cooling of the wall material 111 is suppressed.

[0071] The controller 15 acquires information on the wind direction to be directed by the air conditioner 14 (step S110). The controller 15 acquires information on the wind direction to be directed, for example, by reading the wind direction information stored in the EEPROM 154.

[0072] The controller 15 acquires the variable W from the EEPROM 154 and controls the wind direction of the air conditioner 14 (step S111). The controller 15 selects the movable range included in the acquired wind direction information based on the value of the variable W. For example, when the variable W = 0, the controller 15 selects the widest movable range (for example, the movable range M in FIG. 3). For example, each time the variable W increases by 1, the controller 15 selects a gradually narrower movable range among the movable ranges included in the wind direction information (for example, when the variable W = 1, the movable range M1). The controller 15 controls the wind direction of the air conditioner 14 based on the selected movable range.

[0073] The controller 15 acquires the wind speed based on the electrical signal received from the wind speed sensor 22 (step S112). The controller 15 determines whether the acquired wind speed is less than or equal to a predetermined value (step S113). The predetermined value is obtained from, for example, the EEPOM 154. When the wind speed is less than or equal to the predetermined value (step S113_YES), it is a situation where the wind sent from the air conditioner 14 does not hit the wall material 111 of the partition wall 11, and the process proceeds to step S114. When the wind speed exceeds the predetermined value (step S113_NO), it is a situation where the wind sent from the air conditioner 14 hits the wall material 111 of the partition wall 11, and the process proceeds to step S115.

[0074] In step S114, the controller 15 increments the variable P1. The controller 15 stores the incremented variable P1 in the EEPROM 154. Then, the wind direction control process ends.

[0075] In step S115, the controller 15 increments the variable W. The controller 15 stores the incremented variable W in the EEPROM 154. Then, the process returns to step S111.

[0076] [First Fan Control Process] Next, the first fan control process will be described with reference to the flowchart of FIG. 10. The first fan control process is a process of controlling the rotation direction of the first fan 18 to take in outside air from the outside into the living room 10. By taking in outside air into the living room 10, the living room 10 and the outside become positive pressure with respect to the internal space 100. Since the living room 10 is under positive pressure with respect to the internal space 100 and the outside, air flows from the living room 10 into the internal space 100 through the through hole 16. Since the air in the living room 10 is dried by the air conditioner 14, the dried air can be introduced into the internal space 100 to lower the relative humidity of the internal space 100.

[0077] Based on the electrical signal received from the differential pressure sensor 17, the controller 15 acquires the difference between the air pressure in the internal space 100 of the partition wall 11 and the outdoor air pressure (step S141). Based on the acquired difference, the controller 15 determines whether the pressure in the internal space 100 is lower than the outdoor air pressure (step S142). If the pressure in the internal space 100 is lower than the outdoor air pressure (step S142_YES), the process proceeds to step S143. If the pressure in the internal space 100 is equal to or higher than the outdoor air pressure (step S144_NO), the first fan control process ends.

[0078] In step S143, the controller 15 starts the operation of the first fan 18. By controlling the rotation direction of the first fan 18, the controller 15 takes in outdoor air into the living room 10. Then, the process proceeds to step S144.

[0079] In step S144, the controller 15 increments the variable P3. The controller 15 stores the incremented variable P3 in the EEPROM 154. Then, the first fan control process ends.

[0080] [Second Fan Control Process] Next, the second fan control process will be described with reference to the flowchart of FIG. 11. The second fan control process is a process of controlling the rotation direction of the second fan 20 to send air from the living room 10 into the internal space 100 of the partition wall 11. By operating the second fan, the amount of air introduced from the living room 10 into the internal space 100 increases compared to the case where only the first fan is operating. By increasing the amount of air introduced into the internal space 100, the relative humidity in the internal space 100 can be further reduced.

[0081] Based on the electrical signal received from the room temperature and humidity sensor 19, the controller 15 acquires the room temperature and relative humidity in the room 10 (step S151). Based on the acquired room temperature and relative humidity, the controller 15 calculates the absolute humidity of the room 10 and the internal space 100 (step S152). The absolute humidity is obtained, for example, as follows. First, the controller 15 reads out from the EEPROM 154 the relational expression of the saturated water vapor pressure calculated based on the temperature. The controller 15 substitutes the room temperature of the room 10 into the read relational expression of the saturated water vapor pressure to calculate the saturated water vapor pressure. The controller 15 reads out from the EEPROM 154 the relational expression of the saturated water vapor amount based on the saturated water vapor pressure and the temperature. The controller 15 substitutes the calculated saturated water vapor pressure and the room temperature into the relational expression of the saturated water vapor amount to calculate the saturated water vapor amount. The controller 15 calculates the product of the calculated saturated water vapor amount and the relative humidity of the internal space 100 as the absolute humidity.

[0082] The controller 15 determines whether the absolute humidity of the room 10 is less than the absolute humidity of the internal space 100 (step S153). If the absolute humidity of the room 10 is less than the absolute humidity of the internal space 100 (step S153_YES), the process proceeds to step S154. If the absolute humidity of the room 10 is equal to or greater than the absolute humidity of the internal space 100 (step S153_NO), the second fan control process ends.

[0083] In step S154, the controller 15 starts the operation of the second fan 20. The controller 15 controls the rotation direction of the second fan 20 to send the air in the room 10 into the internal space 100 of the partition wall 11.

[0084] The controller 15 increments the variable P4 (step S155). The controller 15 stores the incremented variable P4 in the EEPROM 154. Then, the second fan control process ends.

[0085] (Operational effects of the embodiment) When the dew point temperature in the internal space 100 of the partition wall 11 is higher than the surface temperature of the wall material 111, the air direction of the air conditioner 14 is controlled so as not to face the partition wall 11. Thereby, it is suppressed that the wall material 111 is cooled by the air sent out from the air conditioner 14. By suppressing the decrease in the surface temperature of the wall material 111, dew condensation on the surface of the wall material 111 is suppressed.

[0086] By raising the temperature of the air sent out from the air conditioner 14, the surface temperature of the wall material 111 rises. By raising the surface temperature of the wall material 111, dew condensation on the surface of the wall material 111 is suppressed. By raising the temperature together with the control of the air direction, dew condensation is more effectively suppressed.

[0087] By introducing outside air into the living room 10 using the first fan 18 located on the outer wall, the inside of the living room 10 becomes positive pressure with respect to the outside and the internal space 100 of the partition wall 11. Since the air dried by the air conditioner 14 flows into the internal space 100 of the partition wall 11 through the through hole 16, the inflow of outside air into the internal space 100 of the partition wall 11 is suppressed. Since the dew point temperature in the internal space 100 of the partition wall 11 decreases, dew condensation on the surface of the wall material 111 is suppressed. By operating the first fan 18 together with the control of the air direction, dew condensation is more effectively suppressed.

[0088] Since the air in the living room 10 with a lower absolute humidity than the internal space 100 of the partition wall 11 flows into the internal space 100 of the partition wall 11, the absolute humidity in the internal space 100 of the partition wall 11 decreases. By the decrease in the absolute humidity in the internal space 100 of the partition wall 11, dew condensation on the surface of the wall material 111 is suppressed. Since the amount of air flowing into the internal space 100 increases by being implemented together with the control of the first fan 18, dew condensation is effectively suppressed.

[0089] When the absolute humidity of the outside air is higher than the absolute humidity in the internal space 100 of the partition wall 11 and the dew point temperature of the outside air is higher than the surface temperature of the wall material 111 of the partition wall 11, the wind direction of the air conditioner 14 is controlled so as not to face the partition wall 11. In a situation where condensation occurs due to the inflow of outside air into the internal space 100 of the partition wall 11, it is possible to prevent the wind sent from the air conditioner 14 from facing the partition wall 11 in advance, so that condensation on the surface of the wall material 111 can be suppressed.

[0090] (Modification example) In the above embodiment, the controller 15 is assumed to acquire wind direction information indicating a predetermined movable range regarding the wind direction of the air conditioner 14, but it is not limited thereto. Direction information in which the direction where the partition wall 11 is located is predetermined for the air conditioner 14 may be stored in the EEPROM 154. The controller 15 may acquire the direction information and control the air conditioner 14 so that the wind direction does not face the position of the partition wall 11 indicated by the direction information.

[0091] Also, in the above embodiment, the controller 15 may linearly move the position of the limit position A1 shown in FIG. 3 toward the limit position A2 regarding the wind direction of the air conditioner 14. The controller 15 may move the wind direction of the air conditioner 14 until the wind speed acquired by the wind speed sensor 22 becomes equal to or lower than a predetermined value. Thereby, since the time when the wind speed acquired by the wind speed sensor 22 becomes equal to or lower than the predetermined value can be set as the wind direction by the wind direction control, it is possible to ensure the comfort of the living room as much as possible while suppressing condensation while making the wind direction as wide as possible.

[0092] Also, in the above embodiment, the controller 15 may perform control to increase the air volume in accordance with the amount of temperature increase during the temperature increase control process. By increasing the air volume, an increase in the perceived temperature associated with the temperature increase control process can be suppressed. Further, the target value of the temperature increase may be dynamically determined based on the dew point temperature of the internal space 100. For example, when the dew point temperature of the internal space 100 is higher than the room temperature, the controller 15 may determine the target value such that the sum of the room temperature and the target value is higher than the dew point temperature. Also, the target value may be a plurality of values that gradually increase. The controller 15 may determine the set temperature of the air conditioner 14 using the smallest target value first during the temperature increase control process. When the surface temperature of the wall material 111 is still lower than the dew point temperature after a predetermined time has elapsed, the controller 15 may determine the set temperature of the air conditioner 14 using the next smallest target value. The controller 15 may, for example, add the next smallest target value to the set temperature of the air conditioner 14 immediately before the temperature increase control process to determine a new set temperature.

[0093] Regarding the target value to be used, the controller 15 may also make a determination by applying it, for example, in the same manner as the variable W in the wind direction control process, by incrementing a predetermined variable. When all the target values have been used and the surface temperature is still lower than the dew point temperature after a predetermined time has elapsed, the controller 15 may then proceed to step S9. Note that the upper limit value of the set temperature may be stored in the EEPROM 154 in advance. When the newly set set temperature is higher than the upper limit value, the controller 15 may proceed to step S9 without determining the new set temperature. Thereby, an excessive increase in the room temperature of the living room 10 can be suppressed, and the comfort in the living room 10 can be maintained.

[0094] Also, in the above embodiment, when the air conditioner 14 stops, the operation control in progress is stopped, but the present invention is not limited to this. When the surface temperature is equal to or lower than the dew point temperature of the internal space 100, the controller 15 may continue to execute the first fan control process even when the air conditioner 14 stops. Further, the controller 15 may continue to execute the second fan control process in addition to the first fan control process even when the air conditioner 14 stops. Furthermore, the controller 15 may stop the first fan control process and the second fan control process when the surface temperature becomes higher than the dew point temperature of the internal space 100.

[0095] Also, in the pre-control process in the above embodiment, although the wind direction control process is executed, the present invention is not limited to this. Instead of the wind direction control process, a temperature increase control process or a first fan control process may be executed. In addition to the wind direction control process, at least one of a temperature increase control process and a first fan control process may be executed. In addition to the first fan control process, a second fan control process may be executed. For example, the controller 15 may increase the number of control processes to be executed according to the rate of increase in the absolute humidity of the outside air. Thereby, it is possible to flexibly respond to suppressing dew condensation according to the expected increase amount of the absolute humidity in the internal space 100 of the partition wall 11.

[0096] Also, as shown in FIG. 12, a roll screen 80 capable of deploying a sheet in the vertical direction 7 may be positioned between the wall material 111 of the partition wall 11 and the air conditioner 14. The sheet 81 of the roll screen 80 is located near the top plate 102 in a wound state, for example. The sheet 81 is extended between the wall material 111 and the air conditioner 14 by being deployed downward from the wound state. The sheet 81 has a position and a size capable of blocking the wind sent from the air conditioner 14 with respect to the wall material 111, for example. The controller 15 operates and extends the roll screen in addition to or instead of the wind direction control process. Thereby, the blowing of the wind from the air conditioner 14 to the wall material 111 is suppressed, and the decrease in the surface temperature of the wall material 111 is suppressed.

[0097] Also, in the above embodiment, although it is assumed that the temperature increase control process is performed before the first fan control process, it is not limited thereto. The temperature increase control process may be performed after the first fan control process. The second fan control process may be performed either before or after the temperature increase control process as long as it is performed after the first fan control process.

[0098] [Appendix 1] A living room, A partition wall having a wall material that partitions the above living room, A temperature sensor that acquires the surface temperature of the above wall material in the internal space of the above partition wall, A wall temperature and humidity sensor that acquires the temperature and relative humidity in the internal space of the above partition wall, An air conditioner that blows air into the above living room to adjust the room temperature of the above living room, A controller that controls the air direction of the above air conditioner, Comprising: The above controller, A wall dew point temperature calculation process that calculates the dew point temperature based on the room temperature and relative humidity acquired by the above wall temperature and humidity sensor, A dew condensation suppression system that executes a wind direction control process of restricting the operation range of the above wind direction so that the above wind direction of the above air conditioner does not face the above partition wall on the condition that the above dew point temperature is higher than the above surface temperature.

[0099] [Appendix 2] After executing the above wind direction control process, the above controller further executes a temperature increase process of increasing the temperature of the air sent from the above air conditioner on the condition that the above dew point temperature is higher than the above surface temperature. The dew condensation suppression system according to Appendix 1.

[0100] [Appendix 3] A through hole that penetrates the above wall material and communicates the internal space of the above partition wall with the above living room, A differential pressure sensor that acquires the difference between the air pressure in the internal space of the above partition wall and the outdoor air pressure, A first fan located at an opening of an outer wall that partitions the above living room and the outside, further comprising: The controller is configured to After executing the above-described wind direction control process, on the condition that the dew point temperature is higher than the surface temperature and the pressure outside is higher than the pressure in the internal space of the partition wall, drive the first fan to further execute a first fan control process for introducing outside air from the outside to the living room, according to the dew condensation suppression system described in Appendix 1 or 2.

[0101] [Appendix 4] A room temperature and humidity sensor for acquiring the room temperature and relative humidity in the living room, Further includes a second fan located at the opening of the partition wall, The controller is configured to Based on the room temperature and relative humidity acquired by the room temperature and humidity sensor, execute a room absolute humidity calculation process for calculating the absolute humidity in the living room, Based on the room temperature and relative humidity acquired by the wall internal temperature and humidity sensor, execute a wall internal absolute humidity calculation process for calculating the absolute humidity in the internal space of the partition wall, After executing the first fan control process, on the condition that the dew point temperature is higher than the surface temperature and the absolute humidity in the living room is smaller than the absolute humidity in the internal space of the partition wall, drive the second fan to further execute a second fan control process for introducing air from the living room to the internal space of the partition wall, according to the dew condensation suppression system described in Appendix 3.

[0102] [Appendix 5] Further includes an outside air temperature and humidity sensor for acquiring the temperature and relative humidity of the outside air, The controller is configured to Based on the temperature and relative humidity acquired by the outside air temperature and humidity sensor, execute an outside air absolute humidity calculation process for calculating the absolute humidity in the outside air, Based on the temperature and relative humidity acquired by the outside air temperature and humidity sensor, execute an outside air dew point temperature calculation process for calculating the dew point temperature in the outside air, Based on the room temperature and relative humidity acquired by the wall internal temperature and humidity sensor, execute a wall internal absolute humidity calculation process for calculating the absolute humidity in the internal space of the partition wall. The dew condensation suppression system according to any one of Appendices 1 to 4, which executes the wind direction control process on the condition that the absolute temperature in the outside air is higher than the absolute temperature in the internal space of the partition wall and the dew point temperature in the outside air is higher than the surface temperature.

[0103] [Appendix 6] Further comprising a wind speed sensor located on the surface of the partition wall on the living room side and acquiring the wind speed on the surface of the partition wall on the living room side. The controller In the wind direction control process, the dew condensation suppression system according to any one of Appendices 1 to 5, which controls the wind direction from the air conditioner toward the partition wall so that the wind speed acquired by the wind speed sensor becomes equal to or lower than a predetermined value.

[0104] [Appendix 7] A living room, A partition wall having a wall material partitioning the living room, A temperature sensor for acquiring the surface temperature of the wall material in the internal space of the partition wall, A wall-mounted temperature and humidity sensor for acquiring the room temperature and relative humidity in the internal space of the partition wall, An air conditioner for sending wind into the living room to adjust the room temperature of the living room, A controller for controlling the wind direction of the air conditioner, A program for operating as a dew condensation suppression system including Causing the controller to Perform a wall-mounted dew point temperature calculation process for calculating a dew point temperature based on the room temperature and relative humidity acquired by the wall-mounted temperature and humidity sensor, A program for performing a wind direction control process of restricting the operation range of the wind direction on the condition that the dew point temperature is higher than the surface temperature, thereby controlling the wind direction of the air conditioner so as not to be directed toward the partition wall.

Explanation of Signs

[0105] 1 ··· Dew condensation suppression system 10 ··· Living room 11 ··· Partition wall 12 ··· Temperature sensor 13 ··· Wall internal temperature and humidity sensor 14 ··· Air conditioner 15 ··· Controller 16 ··· Through hole 17 ··· Differential pressure sensor 18 ··· First fan 19 ··· Occupied room temperature and humidity sensor 20 ··· Second fan 21 ··· Outdoor air temperature and humidity sensor 22 ··· Wind speed sensor 31, 32 ··· Opening 100 ··· Internal space 111 ··· Wall material

Claims

1. A living room, a partition wall having a wall material that partitions the living room, a temperature sensor that acquires the surface temperature of the wall material in the internal space of the partition wall, a wall internal temperature and humidity sensor that acquires the temperature and relative humidity in the internal space of the partition wall, an air conditioner that sends out air to the living room to adjust the room temperature of the living room, a controller that controls the air direction of the air conditioner, comprising: The controller performs an in-wall dew point temperature calculation process for calculating a dew point temperature based on the room temperature and relative humidity acquired by the in-wall temperature and humidity sensor, and a dew point control process for controlling the air direction of the air conditioner so that the air direction does not face the partition wall by restricting the operating range of the air direction on the condition that the dew point temperature is higher than the surface temperature. A dew condensation suppression system that executes.

2. After executing the air direction control process, the controller further executes a temperature increase process for increasing the temperature of the air sent out from the air conditioner on the condition that the dew point temperature is higher than the surface temperature. The dew condensation suppression system according to claim 1.

3. A through hole that penetrates the wall material and communicates the internal space of the partition wall with the living room, a differential pressure sensor that acquires the difference between the air pressure in the internal space of the partition wall and the outdoor air pressure, and a first fan located at an opening in an outer wall that partitions the living room and the outdoors, further comprising: The controller After executing the air direction control process, on the condition that the dew point temperature is higher than the surface temperature and the outdoor pressure is higher than the internal space of the partition wall, the first fan is driven to introduce outside air from the outside to the living room. The dew condensation suppression system according to claim 1 or 2, further executing a first fan control process.

4. a room temperature and humidity sensor that acquires the room temperature and relative humidity in the living room, and a second fan located at an opening in the partition wall, further comprising: The controller performs a room absolute humidity calculation process for calculating the absolute humidity in the living room based on the room temperature and relative humidity acquired by the room temperature and humidity sensor, and an in-wall absolute humidity calculation process for calculating the absolute humidity in the internal space of the partition wall based on the room temperature and relative humidity acquired by the in-wall temperature and humidity sensor. After executing the first fan control process, on the condition that the dew point temperature is higher than the surface temperature and the absolute humidity in the living room is lower than the absolute humidity in the internal space of the partition wall, a second fan control process is further executed to drive the second fan to introduce air from the living room into the internal space of the partition wall. The dew condensation suppression system according to claim 3.

5. Further comprising an outside air temperature and humidity sensor for acquiring the temperature and relative humidity of the outside air, The controller, An outside air absolute humidity calculation process for calculating the absolute humidity in the outside air based on the temperature and relative humidity acquired by the outside air temperature and humidity sensor, An outside air dew point temperature calculation process for calculating the dew point temperature in the outside air based on the temperature and relative humidity acquired by the outside air temperature and humidity sensor, Based on the room temperature and relative humidity acquired by the wall internal temperature and humidity sensor, an in-wall absolute humidity calculation process for calculating the absolute humidity in the internal space of the partition wall is executed. The dew condensation suppression system according to claim 1, wherein the wind direction control process is executed on the condition that the absolute temperature in the outside air is higher than the absolute temperature in the internal space of the partition wall and the dew point temperature in the outside air is higher than the surface temperature.

6. Further comprising a wind speed sensor located on the surface of the partition wall on the living room side for acquiring the wind speed on the surface of the partition wall on the living room side, The controller, In the wind direction control process, the wind direction from the air conditioner toward the partition wall is controlled so that the wind speed acquired by the wind speed sensor is equal to or lower than a predetermined value. The dew condensation suppression system according to claim 1.

7. A living room, A partition wall having a wall material for partitioning the living room, A temperature sensor for acquiring the surface temperature of the wall material in the internal space of the partition wall, A wall internal temperature and humidity sensor for acquiring the room temperature and relative humidity in the internal space of the partition wall, An air conditioner for sending out wind to the living room to adjust the room temperature of the living room, A controller for controlling the wind direction of the air conditioner, A program for operating as a dew condensation suppression system comprising, To the controller, An in-wall dew point temperature calculation process for calculating the dew point temperature based on the room temperature and relative humidity acquired by the wall internal temperature and humidity sensor, A program that executes a wind direction control process for controlling the wind direction of the air conditioner so that the wind direction does not face the partition wall by restricting the operating range of the wind direction on the condition that the dew point temperature is higher than the surface temperature.

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