Air conditioning system

Abstract

To provide an air conditioning system enabling an air humidity in a living room to be closer to a target humidity while making an air temperature in a living room close to a target temperature.SOLUTION: A control part in an air conditioning system includes: a temperature conditioning and air quantity control mode for controlling an air quantity of a carrying fan and an aperture of a damper on the basis of a temperature conditioning operation where an air conditioning device conditions an air temperature in a living room so as to have a target temperature; and a humidity conditioning and air quantity control mode for controlling the air quantity of the carrying fan and the aperture of the damper on the basis of a humidity conditioning operation where the air conditioning device conditions an air humidity in the living room so as to have a target humidity. The control part performs control for switching the temperature conditioning and air quantity control mode and the humidity conditioning and air quantity control mode on the basis of a first control capability value set on the basis of temperature difference between the air temperature in the living room and the target temperature and a second control capability value set on the basis of humidity difference between the air humidity in the living room and the target humidity.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to air conditioning technology, and more particularly to an air conditioning system that controls the air conditioning of multiple spaces. [Background technology]

[0002] An air conditioning system conditions multiple rooms in a house. In the air conditioning system, a transport fan sends conditioned air in an air-conditioned room to a branch chamber, ducts transport the air that has flowed into the branch chamber to the multiple rooms, and dampers adjust the volume of air sent through the ducts to each of the multiple rooms (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-147886 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, the volume of air delivered to each room is adjusted based on the target temperature of each room and the room air temperature acquired by a temperature sensor installed in each room. Specifically, in conventional air conditioning systems, the volume of air delivered by the transport fan and the opening degree of the damper are determined so that the room air temperature approaches the target temperature. However, to ensure user comfort, it is necessary to adjust not only the room air temperature but also the room air humidity, which is the humidity in the room. In conventional air conditioning systems, it is difficult to further bring the room air humidity closer to the target humidity after bringing the room air temperature closer to the target temperature.

[0005] Therefore, the present invention provides an air conditioning system that can bring the room air temperature close to a target temperature and further bring the room air humidity close to a target humidity. [Means for solving the problem]

[0006] The air conditioning system according to the present invention includes an air conditioning device, a plurality of transport air ducts, a plurality of dampers, and a control unit. The air conditioning device is installed in an air-conditioned room. The plurality of transport air ducts connect the air-conditioned room to a plurality of living rooms that are independent of the air-conditioned room. The plurality of dampers are installed corresponding to the plurality of transport air ducts and adjust the air volume of conditioned air passing through each of the plurality of transport air ducts. The control unit controls the opening degree of the dampers. The control unit has a temperature control air volume control mode in which the air conditioning device controls the air volume of the transport fan and the opening degree of the damper based on a temperature control operation in which the air conditioning device controls the temperature of the air in the living room to a target temperature, and a humidity control air volume control mode in which the air conditioning device controls the air volume of the transport fan and the opening degree of the damper based on a humidity control operation in which the air conditioning device controls the humidity of the air in the living room to a target humidity. The control unit switches between a temperature adjustment air volume control mode and a humidity adjustment air volume control mode based on a first control capability value set based on the temperature difference between the temperature of the air in the room and the target temperature, and a second control capability value set based on the humidity difference between the humidity of the air in the room and the target humidity. [Effects of the Invention]

[0007] According to the present invention, it is possible to bring the room air temperature closer to the target temperature and also bring the room air humidity closer to the target humidity. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the configuration of a house according to this embodiment. [Figure 2] FIG. 2 is a diagram showing the configuration of the air conditioning controller of FIG. [Figure 3] FIG. 3 is a flowchart showing a procedure for determining the damper opening degree by the air conditioning controller of FIG. [Figure 4] FIG. 4 is a flowchart showing the determination of the temperature adjustment air volume control mode and the humidity adjustment air volume control mode in FIG. [Figure 5] FIG. 5 is a diagram including an equation for calculating the control capability value. DETAILED DESCRIPTION OF THE INVENTION

[0009] Before describing specific embodiments of the present invention, an overview of the embodiments will be described. This embodiment relates to an air conditioning system installed in a facility such as a house, which performs whole-house air conditioning for the facility. The facility includes an air-conditioned room in which an air conditioner is installed and multiple rooms in which users reside. The air-conditioned room and the multiple rooms are connected to each other via ducts for ventilation. The air conditioning system transports conditioned air to the multiple rooms via the multiple ducts using a transport fan. The air conditioning system adjusts the amount of air blown out from the ducts by adjusting the air volume of the transport fan and the opening degree of a damper installed in each duct. The air conditioning system also has a temperature control air volume control mode that controls the air volume of the transport fan and the opening degree of the damper based on a temperature control operation that adjusts the temperature of the air in the rooms to a target temperature, and a humidity control air volume control mode that controls the air volume of the transport fan and the opening degree of the damper based on a humidity control operation that adjusts the humidity of the air in the rooms to a target humidity. In this embodiment, control is performed to switch between the temperature control air volume control mode and the humidity control air volume control mode based on a first control capability value that is set based on the temperature difference between the air temperature in the room and the target temperature, and a second control capability value that is set based on the humidity difference between the air humidity in the room and the target humidity.

[0010] Here, the duct is an air passage for transporting conditioned air to a room, and therefore can be called a "transport air passage."

[0011] For ease of explanation, the temperature of the air in the living room will be referred to as the "room air temperature" and the humidity of the air in the living room will be referred to as the "room air humidity."

[0012] The examples described below each illustrate a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, component placement and connection configurations, steps (processes), and step order shown in the following examples are merely examples and are not intended to limit the present disclosure. Therefore, among the components in the following examples, components that are not described in the independent claims that represent the highest concept of the present disclosure are described as optional components. Furthermore, in each drawing, substantially identical components are designated by the same reference numerals, and redundant descriptions are omitted or simplified. (Embodiment) FIG. 1 is a diagram showing the configuration of a house according to this embodiment. The house 40 is a two-story building, and as an example, the first floor includes a first living room 5a, a second living room 5b, and a third living room 5c, and the second floor includes a fourth living room 5d, a fifth living room 5e, and an air-conditioned room 1. The first living room 5a to the fifth living room 5e are collectively referred to as "living rooms," and the living rooms are spaces for users to reside in. The number of living rooms in the house 40 is not limited to "5." The air-conditioned room 1 is a space independent of the living rooms. The house 40 also includes an attic space 14 above the second floor and an inter-floor space 15 between the first and second floors.

[0013] The air conditioning system 30 installed in the residence 40 includes a first air conditioner 2a, a second air conditioner 2b, a first fan 3a, a second fan 3b, a first air transfer duct 11a to a fifth air transfer duct 11e, a first damper 6a to a fifth damper 6e, a first damper controller 7a, a second damper controller 7b, an air conditioning controller 8, a fan controller 10, a first temperature sensor 20a to a fifth temperature sensor 20e, and a first humidity sensor 21a to a fifth humidity sensor 21e. The first air conditioner 2a and the second air conditioner 2b correspond to the "air conditioner" in the claims. Note that a configuration may include only one of the first air conditioner 2a and the second air conditioner 2b. The first air transfer duct 11a to the fifth air transfer duct 11e correspond to the "plurality of air transfer ducts" in the claims. The first damper 6a to the fifth damper 6e correspond to the "plurality of dampers" in the claims.

[0014] The first air conditioner 2a is an air conditioner that controls the temperature of the air inside the air-conditioned room 1. The first air conditioner 2a is installed in the air-conditioned room 1. The first air conditioner 2a heats or cools the air that flows into the air-conditioned room 1 and blows it out at a set air volume so that the temperature of the air inside the air-conditioned room 1 becomes a set temperature (hereinafter referred to as the "set temperature"). A HEPA (High Efficiency Particulate Air) filter may be installed downstream of the first air conditioner 2a. The HEPA filter is an air filter that removes dirt, dust, etc. from the air conditioned by the first air conditioner 2a and can output purified air.

[0015] The second air conditioner 2b is a humidification module that controls the humidity of the air inside the air-conditioned room 1. The second air conditioner 2b is installed upstream of the first air conditioner 2a in the air-conditioned room 1. In other words, the second air conditioner 2b humidifies the air before it is drawn into the first air conditioner 2a. The second air conditioner 2b humidifies the air that has flowed into the air-conditioned room 1 and blows it out at a set air volume so that the humidity of the air inside the air-conditioned room 1 reaches a set humidity (hereinafter referred to as the "set temperature").

[0016] The set temperature and air volume of the first air conditioner 2a are set by the air conditioning controller 8. The set humidity and air volume of the second air conditioner 2b are also set by the air conditioning controller 8.

[0017] The first blower 3a is installed downstream of the first air conditioner 2a and is a transport fan for transporting air from the air-conditioned room 1 to the rooms on the first floor (the first room 5a, the second room 5b, and the third room 5c). In other words, the first blower 3a blows air that has been conditioned by the first air conditioner 2a and the second air conditioner 2b and purified by a HEPA filter into a duct 4A described below.

[0018] The second fan 3b is installed downstream of the first air conditioner 2a and is a transport fan for transporting air from the air-conditioned room 1 to the rooms on the second floor (the fourth room 5d and the fifth room 5e). In other words, the second fan 3b blows air that has been conditioned by the first air conditioner 2a and the second air conditioner 2b and purified by a HEPA filter into a duct 4B described below. The airflow rates of the first fan 3a and the second fan 3b may be set to different values.

[0019] The first fan device 3a and the second fan device 3b can communicate with a fan device controller 10, which can communicate with the air conditioning controller 8. The air volumes of the first fan device 3a and the second fan device 3b are set by the air conditioning controller 8 via the fan device controller 10.

[0020] The first transport air duct 11a is an air duct that connects the air-conditioned room 1 and the first living room 5a, and is provided in the inter-floor space 15. The first transport air duct 11a is made up of the duct 4A, the first branch chamber 9a, and the first duct 4Aa.

[0021] The second transport air duct 11b is an air duct that connects the air-conditioned room 1 and the second room 5b, and is provided in the inter-floor space 15. The second transport air duct 11b is made up of the duct 4A, the first branch chamber 9a, and the second duct 4Ab.

[0022] The third transport air duct 11c is an air duct that connects the air-conditioned room 1 and the third living room 5c, and is provided in the inter-floor space 15. The third transport air duct 11c is made up of the duct 4A, the first branch chamber 9a, and the third duct 4Ac.

[0023] The fourth transport air duct 11d is an air duct that connects the air-conditioned room 1 and the fourth living room 5d, and is provided in the attic space 14. The fourth transport air duct 11d is connected between the duct 4B, the second branch chamber 9b, and the fourth living room 5d. It consists of duct 4Bd.

[0024] Fifth transport air duct 11e is an air duct that connects air-conditioned room 1 and fifth room 5e, and is provided in attic space 14. Fifth transport air duct 11e is made up of duct 4B, second branch chamber 9b, and fifth duct 4Be.

[0025] The duct 4A is an air passage that extends from the air-conditioning room 1 to the inter-floor space 15 and is connected to the first branch chamber 9a.

[0026] The duct 4B is an air passage that extends from the air-conditioned room 1 to the attic space 14 and is connected to the second branch chamber 9b.

[0027] The first branch chamber 9a branches the duct 4A into a first duct 4Aa, a second duct 4Ab, and a third duct 4Ac. The first duct 4Aa is connected to the first compartment 5a and transports air from the duct 4A to the first compartment 5a. The second duct 4Ab is connected to the second compartment 5b and transports air from the duct 4A to the second compartment 5b. The third duct 4Ac is connected to the third compartment 5c and transports air from the duct 4A to the third compartment 5c.

[0028] A first damper 6a is provided between the first branch chamber 9a and the first duct 4Aa, and the first damper 6a adjusts the volume of air passing through the first duct 4Aa by changing the degree of opening or closing of the first duct 4Aa (hereinafter referred to as "opening degree"). A second damper 6b is provided between the first branch chamber 9a and the second duct 4Ab, and the second damper 6b adjusts the volume of air passing through the second duct 4Ab by changing the opening degree of the second duct 4Ab. A third damper 6c is provided between the first branch chamber 9a and the third duct 4Ac, and the third damper 6c adjusts the volume of air passing through the third duct 4Ac by changing the opening degree of the third duct 4Ac.

[0029] The first damper 6a, the second damper 6b, and the third damper 6c can communicate with a first damper controller 7a, and the first damper controller 7a can communicate with an air conditioning controller 8. The opening degrees of the first damper 6a to the third damper 6c are set by the air conditioning controller 8 via the first damper controller 7a. The opening degrees of the first damper 6a to the third damper 6c may be different values.

[0030] The second branch chamber 9b branches the duct 4B into a fourth duct 4Bd and a fifth duct 4Be. The fourth duct 4Bd is connected to the fourth chamber 5d and transports air from the duct 4B to the fourth chamber 5d. The fifth duct 4Be is connected to the fifth chamber 5e and transports air from the duct 4B to the fifth chamber 5e.

[0031] A fourth damper 6d is provided between the second branch chamber 9b and the fourth duct 4Bd, and the fourth damper 6d adjusts the volume of air passing through the fourth duct 4Bd by changing the opening of the fourth duct 4Bd. A fifth damper 6e is provided between the second branch chamber 9b and the fifth duct 4Be, and the fifth damper 6e adjusts the volume of air passing through the fifth duct 4Be by changing the opening of the fifth duct 4Be.

[0032] The fourth damper 6d and the fifth damper 6e are capable of communicating with a second damper controller 7b, and the second damper controller 7b is capable of communicating with an air conditioning controller 8. The opening degrees of the fourth damper 6d and the fifth damper 6e are set by the air conditioning controller 8 via the second damper controller 7b. The opening degrees of the fourth damper 6d and the fifth damper 6e may be different values.

[0033] The first temperature sensor 20a and the first humidity sensor 21a are installed in the first living room 5a. The first temperature sensor 20a detects the temperature in the first living room 5a, and the first humidity sensor 21a detects the humidity in the first living room 5a. The first temperature sensor 20a and the first humidity sensor 21a have a communication function and transmit the temperature detected by the first temperature sensor 20a and the humidity detected by the first humidity sensor 21a to the air conditioning controller 8. The second temperature sensor 20b and the second humidity sensor 21b are installed in the second living room 5b, the third temperature sensor 20c and the third humidity sensor 21c are installed in the third living room 5c, the fourth temperature sensor 20d and the fourth humidity sensor 21d are installed in the fourth living room 5d, and the fifth temperature sensor 20e and the fifth humidity sensor 21e are installed in the fifth living room 5e. The second temperature sensor 20b to the fifth temperature sensor 20e perform the same process as the first temperature sensor 20a, and the second humidity sensor 21b to the fifth humidity sensor 21e perform the same process as the first humidity sensor 21a.

[0034] The air conditioning controller 8 is a controller that controls the entire air conditioning system 30. The air conditioning controller 8 is communicatively connected to the first air conditioner 2a, the second air conditioner 2b, the first damper controller 7a, the second damper controller 7b, the fan controller 10, the first temperature sensor 20a to the fifth temperature sensor 20e, and the first humidity sensor 21a to the fifth humidity sensor 21e via wireless or wired communication. The air conditioning controller 8 receives temperatures from the first temperature sensor 20a to the fifth temperature sensor 20e and humidity from the first humidity sensor 21a to the fifth humidity sensor 21e. The air conditioning controller 8 also determines whether to control the first fan 3a, the second fan 3b, and the first damper 6a to the fifth damper 6e in a temperature-adjusted airflow control mode or a humidity-adjusted airflow control mode.

[0035] Here, the temperature regulation air volume control mode is a control mode that controls the air volume of the first blower 3a and the second blower 3b and the opening degree of the first damper 6a to the fifth damper 6e based on the temperature regulation operation that regulates the air temperature in the room to a target temperature.

[0036] In addition, the humidity-adjusted air volume control mode is a control mode that controls the air volume of the first blower 3a and the second blower 3b and the opening degree of the first damper 6a to the fifth damper 6e based on the humidity adjustment operation that adjusts the humidity of the air in the room to the target humidity.

[0037] The air conditioning controller 8 also has an interface for receiving input of information necessary to construct the air conditioning system 30. For example, the air conditioning controller 8 receives the temperature to be set in the air conditioning system 30 (hereinafter referred to as the "target temperature") and the humidity to be set (hereinafter referred to as the "target humidity").

[0038] The air conditioning controller 8 determines the set temperature and air volume of the first air conditioner 2a based on the temperatures received from the first temperature sensor 20a to the fifth temperature sensor 20e and the target temperature. The air conditioning controller 8 also determines the humidification amount of the second air conditioner 2b based on the humidity received from the first humidity sensor 21a to the fifth humidity sensor 21e and the target humidity. In the temperature and air volume control mode, the air conditioning controller 8 also determines the air volumes of the first and second fan devices 3a and 3b, and determines the opening degrees of the first dampers 6a to 6e, based on the temperatures received from the first temperature sensor 20a to the fifth temperature sensor 20e and the target temperature. Furthermore, in the humidity control airflow control mode, the air conditioning controller 8 determines the airflow rates of the first and second fan devices 3a and 3b and the opening degrees of the first to fifth dampers 6a to 6e based on the humidities received from the first to fifth humidity sensors 21a to 21e, respectively, and the target humidity. The air conditioning controller 8 transmits the opening degrees of the first to third dampers 6a to 6c to the first branch chamber 9a, and transmits the opening degrees of the fourth to fifth dampers 6d to 6e to the second branch chamber 9b.

[0039] The interface function in the air conditioning controller 8 is a communication function separate from the air conditioning controller 8. The communication device may be a communication device that is capable of communicating with the air conditioning controller 8. The communication device is, for example, a mobile phone, a smartphone, or a tablet terminal (hereinafter referred to as a "terminal").

[0040] Next, the detailed configuration of the air conditioning controller 8 will be described with reference to Fig. 2. Fig. 2 is a diagram showing the configuration of the air conditioning controller 8. The air conditioning controller 8 includes an operation unit 52, a display unit 54, a storage unit 56, and a control unit 50.

[0041] The operation unit 52 is the interface described above, and accepts operations from a user or the like. The operation unit 52 outputs a signal corresponding to the accepted operation to the control unit 50. When a communication device (not shown) accepts an operation from a user or the like, the communication device may transmit a signal corresponding to the accepted operation to the air conditioning controller 8. One example of information input by operation from a user or the like is information on the number of dampers in the first branch chamber 9a and information on the number of dampers in the second branch chamber 9b, which is input by an installer when installing the air conditioning system 30 in the house 40. Another example of information input by operation from a user or the like is information on target temperature and target humidity input by the user when operating the air conditioning system 30.

[0042] The display unit 54 is a display that visualizes the state of the air conditioning controller 8. The display unit 54 displays, for example, the target temperature, the target humidity, the current control mode, and the like.

[0043] The storage unit 56 stores data structures of tables corresponding to the number of dampers in the branch chambers. For example, the number of dampers in the first branch chamber 9a in FIG. 1 is "3," and the number of dampers in the second branch chamber 9b is "2," so tables corresponding to these are also stored. These tables associate the damper opening score, the airflow rate of the blower, and the opening of the damper.

[0044] The control unit 50 includes a room temperature acquisition unit 58, a room target temperature acquisition unit 60, a room humidity acquisition unit 62, a room target humidity acquisition unit 64, a temperature difference calculation unit 66, a humidity difference calculation unit 68, a control value calculation unit 70, a control mode determination unit 72, a blower device determination unit 74, and an opening degree determination unit 76.

[0045] The room temperature acquisition unit 58 is communicably connected to the first temperature sensor 20a to the fifth temperature sensor 20e and acquires the temperatures of the first room 5a to the fifth room 5e.

[0046] The room target temperature acquisition unit 60 acquires the target temperatures for the first room 5a to the fifth room 5e. The target temperatures are acquired from values ​​input by the user via the operation unit 52, for example.

[0047] The room humidity acquisition unit 62 is communicably connected to the first humidity sensor 21a to the fifth humidity sensor 21b, and acquires the humidity in the first room 5a to the fifth room 5e.

[0048] The room target humidity acquisition unit 64 acquires the target humidity for the first room 5a to the fifth room 5e. The target humidity is acquired from a value input by the user via the operation unit 52, for example.

[0049] The temperature difference calculation unit 66 calculates the temperature difference between the target temperature of each room acquired by the room target temperature acquisition unit 60 and the air temperature of each room acquired by the room temperature acquisition unit 58.

[0050] The humidity difference calculation unit 68 calculates the humidity difference, which is the difference between the target humidity of each room acquired by the room target humidity acquisition unit 64 and the air humidity of each room acquired by the room humidity acquisition unit 62.

[0051] The control value calculation unit 70 calculates the temperature difference calculated by the temperature difference calculation unit 66 and the humidity difference calculated by the humidity difference calculation unit 68. Based on the humidity difference thus obtained, the control value used by the control mode determination unit 72 is calculated. The calculation of the control value will be described in detail later.

[0052] The control mode determination unit 72 determines in which control mode the first damper 6a to the fifth damper 6e should be opened or closed, based on the control value calculated by the control value calculation unit 70. In other words, the control mode determination unit 72 selects one control mode from a plurality of control modes. Specifically, the control mode determination unit 72 determines whether the first damper 6a to the fifth damper 6e should be opened or closed: a temperature adjustment airflow control mode in which the opening degree is determined based on the temperature difference calculated by the temperature difference calculation unit 66, or a humidity adjustment airflow control mode in which the opening degree is determined based on the humidity difference calculated by the humidity difference calculation unit 68. Note that the control mode determination unit 72 may determine not only the opening or closing of the first damper 6a to the fifth damper 6e, but also the control modes of the first blower 3a and the second blower 3b.

[0053] The fan device determination unit 74 determines the airflow rates of the first fan device 3a and the second fan device 3b based on the control mode determined by the control mode determination unit 72, and transmits the determined airflow rate to the fan device controller 10. For example, in the temperature adjustment airflow control mode, the airflow rate is adjusted so that the room air temperature approaches a target temperature, and in the humidity adjustment airflow control mode, the airflow rate is adjusted so that the room air humidity approaches a target humidity.

[0054] The opening degree determination unit 76 determines the opening degrees of the first damper 6a to the fifth damper 6e based on the control mode determined by the control mode determination unit 72, and transmits the determined opening degrees to the first damper controller 7a and the second damper controller 7b. For example, in the temperature adjustment air volume control mode, the opening degrees are adjusted so that the room air temperature approaches a target temperature, and in the humidity adjustment air volume control mode, the opening degrees are adjusted so that the room air humidity approaches a target humidity.

[0055] Below, with reference to Figures 3 and 5, an overview of the processing in the air conditioning controller 8 will be explained in the following order: (1) determining the temperature adjustment air volume control mode and the humidity adjustment air volume control mode, (2) determining the air volume of the first fan device 3a and the second fan device 3b, and (3) determining the opening degrees of each of the first damper 6a to the fifth damper 6e. Here, Figure 3 is a flowchart showing the procedure for determining the damper opening degrees by the air conditioning controller 8. Also, Figure 5 is a diagram including formulas for calculating the control capability values ​​(first control capability value and second control capability value). (1) Deciding on temperature and humidity control modes The control unit 50 has a temperature control airflow control mode in which the first air conditioner 2a controls the damper opening based on a temperature control operation that controls the room air temperature to a target temperature, and a humidity control airflow control mode in which the second air conditioner 2b controls the damper opening based on a humidity control operation that controls the room air humidity to a target humidity. The control unit 50 controls switching between the temperature control airflow control mode and the humidity control airflow control mode based on a first control capability value set based on the temperature difference between the room air temperature and the target temperature and a second control capability value set based on the humidity difference between the room air humidity and the target humidity.

[0056] First, the control unit 50 acquires each room air temperature from each of the first temperature sensor 20a to the fifth temperature sensor 20e using the room temperature acquisition unit 58. The control unit 50 also acquires each room air humidity from each of the first humidity sensor 21a to the fifth humidity sensor 21e using the room humidity acquisition unit 62. Furthermore, the control unit 50 acquires the target temperature from the operation unit 52 using the room target temperature acquisition unit 60, and acquires the target humidity using the room target humidity acquisition unit 64 (step S10).

[0057] Next, the control unit 50 calculates the temperature difference between the air temperature in each room and the target temperature in the temperature difference calculation unit 66. Furthermore, the control unit 50 calculates the average value of the temperature differences in the first room 5a to the fifth room 5e (hereinafter referred to as the "average temperature difference").

[0058] Next, the control unit 50 calculates the humidity difference, which is the difference between the air temperature of each room and the target humidity, in the humidity difference calculation unit 68. Furthermore, the average value of the humidity differences in the first room 5a to the fifth room 5e (hereinafter referred to as (hereinafter referred to as the "average humidity difference") is calculated (step S12).

[0059] Next, the control unit 50 calculates the sum of the squares of the temperature differences in the first room 5a to the fifth room 5e as the first control capability value (see formula (1) in Figure 5) in the control value calculation unit 70. Here, "T1" in Figure 5 is the temperature difference between the set temperature and the air temperature in each room. Also, "i" is an index that identifies the temperature sensor, an index that identifies the room, and an index that identifies the damper. For example, if "i" is 1, the first temperature sensor 20a, the first room 5a, and the first damper 6a correspond to each other.

[0060] Next, the control unit 50 calculates the second control capability value (see formula (2) in FIG. 5) by using the control value calculation unit 70 to multiply the sum of the squares of the humidity differences from the target humidity in the first living room 5a to the fifth living room 5e by a constant A. Here, "T2" in FIG. 5 is the humidity difference between the set humidity and the air humidity in each living room. Also, "A" is a constant that ensures that the first control capability value and the second control capability value have the same unit.

[0061] Next, the control unit 50 determines in the control mode determination unit 72 whether to perform control in the temperature adjustment air volume control mode or the humidity adjustment air volume control mode based on the average temperature difference, the average humidity difference, the predetermined temperature difference threshold, the predetermined humidity difference threshold, the first control capability value, and the second control capability value (step S18). (2) Determination of the airflow rates of the first and second blower devices 3a and 3b The control unit 50 performs control in either a temperature-adjusted air volume control mode or a humidity-adjusted air volume control mode, as determined by the control mode determination unit 72. In the temperature-adjusted air volume control mode, the air blower determination unit 74 determines the air volumes of the first air blower 3a and the second air blower 3b based on the temperature difference. In the humidity-adjusted air volume control mode, the air blower determination unit 74 determines the air volumes of the first air blower 3a and the second air blower 3b based on the humidity difference (step S20). Hereinafter, the air volumes of the first air blower 3a and the second air blower 3b will be referred to as "notches." The notches are indicated by numbers from "1" to "7," with "1" representing the smallest air volume and "7" representing the largest air volume. (3) Determining the opening degrees of the first damper 6a to the fifth damper 6e The control value calculation unit 70 calculates the damper opening score D(i) (see equation (3) in FIG. 5) by dividing the sum of the temperature difference "T1" and the constant B by the largest temperature difference "T1max" among the first living room 5a to the fifth living room 5e and multiplying the result by a constant C (step S14). The damper opening score D(i) is used in the temperature adjustment airflow control mode. The control value calculation unit 70 also calculates the damper opening score E(i) (see equation (4) in FIG. 5) by dividing the sum of the humidity difference "T2" and the constant B by the largest humidity difference "T2max" among the first living room 5a to the fifth living room 5e and multiplying the result by a constant C (step S14). The damper opening score E(i) is used in the humidity adjustment airflow control mode. In equations (3) and (4) of FIG. 5, "B" uses an appropriate value so that the temperature difference and humidity difference do not become negative numbers. In this embodiment, "B" is set to 3 as an example. Furthermore, "C" in equations (3) and (4) of FIG. 5 is an integer, and may be freely changed depending on the number of stages at which the damper opening is desired to be controlled. In this embodiment, "C" is set to 5 as an example. In other words, in this embodiment, the damper opening changes in five stages. Here, D(i) and E(i) are rounded to the nearest integer. As a result, D(i) and E(i) are expressed as any of "1" to "5." The damper opening is smallest when the damper opening score is "1" and largest when it is "5."

[0062] The control unit 50 determines the opening degree of the dampers in the opening degree determination unit 76 based on a table that associates the damper opening degree score stored in the storage unit 56 with the airflow rate of the air blower and the opening degree of the dampers. For example, in the case of the temperature regulation airflow control mode, the opening degree determination unit 76 determines the number of dampers in the first branch chamber 9a, the number of dampers in the second branch chamber 9b, the number of dampers in the first branch chamber 9a, the number of dampers in the second branch chamber 9b, the opening degree of the dampers in the first branch chamber 9a, the number of dampers in the second branch chamber 9b, the opening degree of the dampers in the first branch chamber 9b, the number of ... second branch chamber 9b, the opening degree of the dampers in the first branch chamber 9a, the number of dampers in the second branch chamber 9b, the opening degree of the dampers in the first branch chamber 9b, the number of dampers in the first branch chamber 9a, the number of dampers in the second branch chamber 9b, the opening degree of the dampers in the first branch chamber 9 The opening degree of each damper is determined based on the airflow rate (notch) of the fan device 3a, the airflow rate (notch) of the second fan device 3b, and the damper opening score D(i). In the humidity control airflow control mode, the opening degree determination unit 76 determines the opening degree of each damper based on the number of dampers in the first branch chamber 9a, the number of dampers in the second branch chamber 9b, the airflow rate (notch) of the first fan device 3a, the airflow rate (notch) of the second fan device 3b, and the damper opening score E(i) (step S22).

[0063] The control unit 50 selects a table corresponding to the number of dampers in one branch chamber. From the table, the control unit 50 selects a column corresponding to the airflow rate (notch) of the blower connected to that branch chamber. From the selected column, the control unit 50 selects a value corresponding to the damper opening score of one damper in that branch chamber. The control unit 50 executes this process for each damper in that branch chamber, and also for other branch chambers. In other words, the control unit 50 determines the opening rate of each of the multiple dampers based on the number of dampers, the airflow rate of the blower, and the table stored in the memory unit 56. In this way, the control unit 50 controls the opening rate of each of the multiple dampers.

[0064] The control unit 50 sets the air volume and set temperature of the first air conditioner 2a in the first air conditioner 2a by transmitting the air volume and set temperature of the first air conditioner 2a to the first air conditioner 2a. Also, it sets the humidification amount of the second air conditioner 2b by transmitting the set humidity of the second air conditioner 2b to the second air conditioner 2b. The control unit 50 transmits the air volume of the first fan 3a and the air volume of the second fan 3b to the fan controller 10, and the fan controller 10 sets the air volume of the first fan 3a in the first fan 3a and the air volume of the second fan 3b in the second fan 3b.

[0065] The control unit 50 transmits the opening degrees of the first damper 6a to the third damper 6c to the first damper controller 7a. The first damper controller 7a sets the opening degree of the first damper 6a to the first damper 6a, the opening degree of the second damper 6b to the second damper 6b, and the opening degree of the third damper 6c to the third damper 6c. The control unit 50 transmits the opening degrees of the fourth damper 6d and the fifth damper 6e to the second damper controller 7b. The second damper controller 7b sets the opening degree of the fourth damper 6d to the fourth damper 6d, and the opening degree of the fifth damper 6e to the fifth damper 6e.

[0066] The subject of the device, system, or method of the present disclosure includes a computer. The computer executes a program to realize the functions of the subject of the device, system, or method of the present disclosure. The computer includes, as its main hardware component, a processor that operates according to the program. The processor may be of any type as long as it can realize the functions by executing the program. The processor may be composed of one or more electronic circuits, including a semiconductor integrated circuit (IC) or a large-scale integration (LSI). The electronic circuits may be integrated into a single chip or may be provided on multiple chips. The multiple chips may be integrated into a single device or may be provided on multiple devices. The program is recorded on a non-transitory recording medium, such as a computer-readable ROM, optical disk, or hard disk drive. The program may be pre-stored on the recording medium or may be supplied to the recording medium via a wide-area communication network, including the Internet.

[0067] The operation of the air conditioning controller 8 configured as described above will be described with reference to Figures 3 and 4. Figure 3 is a flowchart showing the procedure for determining the damper opening degree by the air conditioning controller 8. Figure 4 is a flowchart showing the determination of the temperature adjustment air volume control mode and the humidity adjustment air volume control mode in Figure 3.

[0068] First, the first temperature sensor 20a to the fifth temperature sensor 20e measure the room air temperature. is acquired by the room temperature acquisition unit 58. Furthermore, the room air humidity is acquired from each of the first humidity sensor 21a to the fifth humidity sensor 21e by the room humidity acquisition unit 62. Furthermore, the target temperature from the operation unit 52 is acquired by the room target temperature acquisition unit 60, and the target humidity is acquired by the room target humidity acquisition unit 64 (step S10).

[0069] Next, temperature difference calculation unit 66 calculates the temperature difference, which is the difference between the air temperature in each room and the target temperature. Furthermore, humidity difference calculation unit 68 calculates the humidity difference, which is the difference between the air humidity in each room and the target humidity (step S12). Furthermore, the average temperature difference and average humidity difference in first room 5a to fifth room 5e are also calculated in the process of S12.

[0070] Next, the control unit 50 executes a damper score calculation process (step S14). Here, the control value calculation unit 70 calculates the damper opening score D(i) (see equation (3) in FIG. 5) and the damper opening score E(i) (see equation (4) in FIG. 5).

[0071] Next, the control unit 50 determines the airflow rate / set temperature of the first air conditioner 2a based on the average temperature difference between the first room 5a and the fifth room 5e. Furthermore, the control unit 50 determines the humidification amount of the second air conditioner 2b based on the average humidity difference between the first room 5a and the fifth room 5e (step S16).

[0072] Next, the control mode determination unit 72 determines whether the first damper 6a to the fifth damper 6e should be opened or closed in the temperature adjustment air volume control mode or the humidity adjustment air volume control mode (step S18). The processing of step S18 will now be described in detail with reference to FIG.

[0073] The control mode determination unit 72 determines whether to give priority to the temperature regulation air volume control mode. This is because the room air temperature must be stabilized in order to stabilize the room air humidity. In other words, the control mode determination unit 72 selects each control mode so that the room air temperature is stabilized by the temperature regulation air volume control mode and then the room air humidity is stabilized by the humidity regulation air volume control mode.

[0074] In step S18, a determination is made using the average temperature difference and average humidity difference calculated by the temperature difference calculation unit 66, the first control capability value (formula (1) in FIG. 5) and the second control capability value (formula (2) in FIG. 5) calculated by the control value calculation unit, and the temperature difference threshold and humidity difference threshold stored in the memory unit 56. Note that the temperature difference threshold and humidity difference threshold may be freely determined. In the present embodiment, as an example, the temperature difference threshold and humidity difference threshold are set to 0.

[0075] If the average value of each room's air temperature is equal to or higher than the target temperature, the average temperature difference will be a negative value, so the relationship between the average temperature difference and the temperature difference threshold is "average temperature difference < temperature difference threshold." Also, if the average value of each room's air humidity is lower than the target temperature, the average temperature difference will be a positive value, so the relationship between the average temperature difference and the temperature difference threshold is "average temperature difference ≧ temperature difference threshold."

[0076] Furthermore, if the average value of the air humidity in each room is equal to or greater than the target humidity, the average humidity difference will be a negative value, so the relationship between the average humidity difference and the humidity difference threshold is "average humidity difference < humidity difference threshold." Furthermore, if the average value of the air humidity in each room is less than the target humidity, the average humidity difference will be a positive value, so the relationship between the average humidity difference and the humidity difference threshold is "average humidity difference ≧ humidity difference threshold."

[0077] First, the control mode determination unit 72 determines whether the relationship between the average temperature difference and the temperature difference threshold is "average temperature difference ≧ temperature difference threshold" (step S18-1). In other words, it determines whether the average value of the room air temperature is less than the target temperature. If the relationship between the average temperature difference and the temperature difference threshold is "average temperature difference ≧ temperature difference threshold" (step S18-1: YES), the control mode determination unit 72 determines to control the first damper 6a to the fifth damper 6e in the temperature adjustment air volume control mode. In such cases, in order to stabilize the air humidity in the rooms, it is first necessary to quickly bring the air temperature in each room to the target temperature. By controlling the opening of each damper based on the temperature difference in the temperature control airflow control mode, the air temperature in each room can be made to reach the target temperature quickly.

[0078] If the relationship between the average temperature difference and the temperature difference threshold is "average temperature difference < temperature difference threshold" (step S18-1: NO), the control mode determination unit 72 determines whether the relationship between the average humidity difference and the humidity difference threshold is "average humidity difference ≥ humidity difference threshold" (step S18-2). If the relationship between the average humidity difference and the humidity difference threshold is "average humidity difference ≥ humidity difference threshold" (step S18-2: YES), the control mode determination unit 72 determines to control the first damper 6a through the fifth damper 6e in the temperature adjustment airflow control mode. "Step S18-2: YES" indicates a situation in which the average value of each room air temperature reaches the target temperature, but the average value of each room air humidity does not reach the target humidity. If the humidity adjustment airflow control mode is immediately selected in this situation, the room temperature may become unstable. Therefore, maintaining the temperature adjustment airflow control mode in this case also allows the room air temperature to remain stable while the room air humidity approaches the target humidity. In other words, when the temperature difference is less than the temperature difference threshold and the humidity difference is equal to or greater than the humidity difference threshold, the temperature adjustment air volume control mode is continued until the humidity difference becomes less than the humidity difference threshold.

[0079] If the relationship between the average humidity difference and the humidity difference threshold is "average humidity difference<humidity difference threshold" (step S18-2: NO), the control mode determination unit 72 determines whether the relationship between the first control capability value and the second control capability value is "first control capability value≧second control capability value" (step S18-3). If the relationship between the first control capability value and the second control capability value is "first control capability value≧second control capability value" (step S18-3: YES), the control mode determination unit 72 determines to control the first damper 6a to the fifth damper 6e in the temperature adjustment airflow control mode. If the relationship between the first control capability value and the second control capability value is "first control capability value<second control capability value" (step S18-3: NO), the control mode determination unit 72 determines to control the first damper 6a to the fifth damper 6e in the humidity adjustment airflow control mode. "Step S18-3: YES" and "Step S18-3: NO" indicate a situation in which the average value of each room air temperature has reached the target temperature, and the average value of each room air humidity has also reached the target humidity. In this way, when both the room air temperature and the room air humidity are relatively stable, the variation from the measurement values ​​of the first temperature sensor 20a to the measurement values ​​of the fifth temperature sensor 20e relative to the target temperature is compared with the variation from the measurement values ​​of the first humidity sensor 21a to the measurement values ​​of the fifth humidity sensor 21e relative to the target humidity, and control is performed to reduce the variation with the larger variation. Here, the "variation from the measurement values ​​of the first temperature sensor 20a to the measurement values ​​of the fifth temperature sensor 20e relative to the target temperature" corresponds to the first control value (Equation (1) in FIG. 5), and the "variation from the measurement values ​​of the first humidity sensor 21a to the measurement values ​​of the fifth humidity sensor 21e relative to the target humidity" corresponds to the second control value (Equation (2) in FIG. 5). With this type of control, it is possible to bring the room air temperature closer to the target temperature and also bring the room air humidity closer to the target humidity.

[0080] Up to this point, when either the temperature control airflow control mode or the humidity control airflow control mode is selected, the first damper 6a through the fifth damper 6e are all controlled in the same control mode. However, this is not limited to this. It is possible to select whether to adjust the opening degree for each damper in the temperature control airflow control mode or the humidity control airflow control mode. For example, the opening degree of the first damper 6a can be adjusted in the temperature control airflow control mode, and the opening degree of the second damper 6b can be adjusted in the humidity control airflow control mode. This type of control allows the selection of a control mode based on the characteristics of the room. For example, in a room with large windows, the temperature difference between the room air temperature and the target temperature may temporarily increase due to the influence of solar radiation. In such cases, temporary temperature fluctuations can be suppressed by adjusting the opening degree in the temperature control airflow control mode for only that room. Furthermore, in a room with a wet room, such as a kitchen, the humidity difference between the room air humidity and the target humidity may temporarily increase. In such cases, temporary humidity fluctuations can be suppressed by adjusting the opening degree in the humidity control airflow control mode for only that room.

[0081] Next, the control following step S18 will be described with reference to FIG. 3. In the temperature adjustment air volume control mode, the opening degree determination unit 76 determines the air volume of the first fan 3a and the second fan 3b based on the temperature difference between each room air temperature and the target temperature (step S20). Furthermore, the opening degree of each of the first damper 6a to the fifth damper 6e is determined based on the damper opening degree score D(i) calculated in step S14 (step S22). In other words, in the temperature adjustment air volume control mode, the opening degree of the damper is adjusted for each of multiple rooms based on the temperature difference between the target temperature and the room temperature. With this control, if the temperature difference between the air temperature of some rooms and the target temperature temporarily increases, the temperature difference is reduced, thereby suppressing temporary fluctuations in the air temperature of some rooms.

[0082] In the humidity-controlled airflow control mode, the airflow rates of the first and second blowers 3a and 3b are determined based on the difference between the air humidity in each room and the target humidity (step S20). Furthermore, the opening degrees of the first through fifth dampers 6a through 6e are determined based on the damper opening score E(i) calculated in step S14 (step S22). In other words, in the humidity-controlled airflow control mode, the opening degrees of the dampers are adjusted for each of a plurality of rooms based on the difference between the target humidity and the humidity. This type of control reduces the humidity difference when the difference between the air humidity in some rooms and the target humidity temporarily increases, thereby suppressing temporary fluctuations in humidity in some rooms.

[0083] Here, the control of the damper opening will be described in detail. In the temperature adjustment air volume control mode, when the temperature difference is equal to or greater than the temperature difference threshold, the control unit 50 increases the damper opening as the difference between the temperature difference and the temperature difference threshold increases. Furthermore, when the temperature difference is less than the temperature difference threshold, the control unit 50 decreases the damper opening as the difference between the temperature difference and the temperature difference threshold increases. In other words, when the room air temperature is less than the target temperature and the difference between the temperature difference threshold is large, the air volume being conveyed can be increased to bring the room air temperature closer to the target temperature. Furthermore, when the room air temperature is equal to or greater than the target temperature and the difference between the temperature difference threshold is large, the air volume being conveyed can be decreased to bring the room air temperature closer to the target temperature.

[0084] Furthermore, in the humidity control airflow control mode, when the humidity difference is equal to or greater than the humidity difference threshold, the damper opening is increased as the difference between the humidity difference and the humidity difference threshold increases, whereas in the humidity control airflow control mode, when the humidity difference is less than the humidity difference threshold, the damper opening is decreased as the difference between the humidity difference and the humidity difference threshold increases. In other words, when the room air humidity is less than the target humidity and there is a large difference between it and the humidity difference threshold, the airflow rate can be increased to bring the room air humidity closer to the target humidity. Furthermore, when the room air humidity is equal to or greater than the target humidity and there is a large difference between it and the humidity difference threshold, the airflow rate can be decreased to bring the room air humidity closer to the target humidity.

[0085] With an air conditioning system configured in this way, it is possible to bring the room air temperature close to the target temperature and also bring the room air humidity close to the target humidity.

[0086] An outline of one aspect of the present disclosure is as follows. (Item 1) An air conditioning device provided in the air-conditioned room 1; a plurality of conveying air ducts connecting a plurality of rooms independent of the air-conditioning room 1 to the air-conditioning room 1; a plurality of dampers provided corresponding to the plurality of transport air passages, each damper adjusting the volume of conditioned air passing through each of the plurality of transport air passages; A control unit 50; Equipped with The control unit 50 controls a temperature regulation air volume control mode in which the air conditioner controls the opening degree of the damper based on a temperature regulation operation in which the air temperature of the room is regulated to a target temperature; a humidity control air volume control mode in which the opening degree of the damper is controlled based on a humidity control operation for adjusting the humidity of the air in the room to a target humidity; performing control to switch between the temperature control airflow control mode and the humidity control airflow control mode based on a first control capability value of the air conditioner that is set based on a temperature difference between the temperature of the air in the room and the target temperature, and a second control capability value of the air conditioner that is set based on a humidity difference between the humidity of the air in the room and the target humidity; Air conditioning system 30. (Item 2) The control unit 50 performing control to switch to the temperature adjustment air volume control mode when the temperature difference is less than a predetermined temperature difference threshold, the humidity difference is less than a predetermined humidity difference threshold, and the first control capability value is greater than the second control capability value; When the temperature difference is less than a predetermined temperature difference threshold, the humidity difference is less than a predetermined humidity difference threshold, and the second control capability value is greater than the first control capability value, control is performed to switch to the humidity control airflow control mode. Item 1. The air conditioning system 30 according to item 1. (Item 3) The control unit 50 When the temperature difference is equal to or greater than the temperature difference threshold, control is performed to switch to the temperature adjustment air volume control mode regardless of the humidity difference. Item 2. The air conditioning system 30 according to item 2. (Item 4) The control unit 50 When the temperature difference is less than the temperature difference threshold and the humidity difference is equal to or greater than the humidity difference threshold, control is performed to continue the temperature adjustment air volume control mode until the humidity difference becomes less than the humidity difference threshold. Item 3. An air conditioning system 30 according to item 3. (Item 5) The control unit 50 In the temperature regulation air volume control mode, adjusting the opening degree of the damper based on a temperature difference between the target temperature and the temperature for each of the plurality of rooms; In the humidity control air volume control mode, the opening degree of the damper is adjusted based on a humidity difference between the target humidity and the humidity for each of the plurality of rooms. Item 1. The air conditioning system 30 according to item 1. (Item 6) The control unit 50 Item 1. The air conditioning system according to item 1, wherein it is possible to select, for each of the plurality of rooms, whether to adjust the opening degree of the damper in the temperature adjustment air volume control mode or in the humidity adjustment air volume control mode. (Item 7) The control unit 50 When the temperature difference is equal to or greater than the predetermined temperature difference threshold in the temperature adjustment air volume control mode, the opening degree of the damper is increased as the difference between the temperature difference and the temperature difference threshold increases; When the temperature difference is less than the predetermined temperature difference threshold in the temperature adjustment air volume control mode, the opening degree of the damper is reduced as the difference between the temperature difference and the temperature difference threshold increases, In the humidity control air volume control mode, when the humidity difference is equal to or greater than the predetermined humidity difference threshold, the opening degree of the damper is increased as the difference between the humidity difference and the humidity difference threshold increases; When the humidity difference is less than the predetermined humidity difference threshold in the humidity control air volume control mode, the opening degree of the damper is reduced as the difference between the humidity difference and the humidity difference threshold increases. The air conditioning system described in item 2.

[0087] The present disclosure has been described above based on examples. These examples are merely illustrative, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component or each treatment process, and that such modifications are also within the scope of the present disclosure. [Industrial Applicability]

[0088] The air conditioning system according to the present invention can be applied, for example, as a system for controlling air conditioning in a whole building. [Explanation of symbols]

[0089] 1 Air conditioned room 2a 1st air conditioner 2b 2nd air conditioner 3a 1st blower 3b 2nd blower 4A Duct 4Aa 1st duct 4Ab Second Duct 4Ac 3rd Duct 4B Duct 4Bd 4th Duct 4Be 5th Duct 5a 1st room 5b 2nd living room 5c 3rd living room 5d 4th room 5e Room 5 6a First damper 6b Second damper 6c Third damper 6d 4th damper 6e 5th Dumper 7a First damper controller 7b Second damper controller 8 Air Conditioning Controller 9a First branch chamber 9b Second branch chamber 10 Blower Controller 11a First conveying air duct 11b Second transport air duct 11c Third conveying air duct 11d Fourth conveying air duct 11e 5th transport air duct 14 Attic space 15-story space 20a First temperature sensor 20b Second temperature sensor 20c Third temperature sensor 20d 4th temperature sensor 20e 5th temperature sensor 21a First humidity sensor 21b Second humidity sensor 21c Third humidity sensor 21d 4th humidity sensor 21e 5th humidity sensor 30 Air Conditioning System 40 Housing 50 control section 52 Operation section 54 Display section 56 Memory section 58 Room temperature acquisition section 60 Room target temperature acquisition section 62 Living Room Humidity Acquisition Department 64 Room target humidity acquisition unit 66 Temperature difference calculation section 68 Humidity difference calculation section 70 Control value calculation unit 72 Control mode determination unit 74 Blower device determination unit 76 Opening degree determination unit

Claims

1. an air conditioning device provided in the air-conditioned room; a plurality of transport air ducts connecting the air-conditioned room to a plurality of rooms independent of the air-conditioned room; a plurality of dampers provided corresponding to the plurality of transport air passages, each damper adjusting the volume of conditioned air passing through each of the plurality of transport air passages; A control unit; Equipped with the control unit has a temperature control airflow control mode in which the air conditioner controls the opening degree of the damper based on a temperature control operation in which the air conditioner controls the temperature of the air in the room to a target temperature, and a humidity control airflow control mode in which the air conditioner controls the opening degree of the damper based on a humidity control operation in which the air conditioner controls the humidity of the air in the room to a target humidity, and performing control to switch between the temperature control airflow control mode and the humidity control airflow control mode based on a first control capability value of the air conditioner that is set based on a temperature difference between the temperature of the air in the room and the target temperature, and a second control capability value of the air conditioner that is set based on a humidity difference between the humidity of the air in the room and the target humidity. Air conditioning system.

2. The control unit performing control to switch to the temperature adjustment air volume control mode when the temperature difference is less than a predetermined temperature difference threshold, the humidity difference is less than a predetermined humidity difference threshold, and the first control capability value is greater than the second control capability value; When the temperature difference is less than a predetermined temperature difference threshold, the humidity difference is less than a predetermined humidity difference threshold, and the second control capability value is greater than the first control capability value, control is performed to switch to the humidity control airflow control mode. The air conditioning system of claim 1 .

3. The control unit When the temperature difference is equal to or greater than the temperature difference threshold, control is performed to switch to the temperature adjustment air volume control mode regardless of the humidity difference.

3. The air conditioning system of claim 2.

4. The control unit When the temperature difference is less than the temperature difference threshold and the humidity difference is equal to or greater than the humidity difference threshold, control is performed to continue the temperature adjustment air volume control mode until the humidity difference becomes less than the humidity difference threshold.

4. The air conditioning system of claim 3.

5. The control unit In the temperature regulation air volume control mode, adjusting the opening degree of the damper based on a temperature difference between the target temperature and the temperature for each of the plurality of rooms; In the humidity control air volume control mode, the opening degree of the damper is adjusted based on a humidity difference between the target humidity and the humidity for each of the plurality of rooms. The air conditioning system of claim 1 .

6. The control unit The air conditioning system according to claim 1 , wherein it is possible to select, for each of the plurality of rooms, whether to adjust the opening degree of the damper in the temperature adjustment air volume control mode or in the humidity adjustment air volume control mode.

7. The control unit When the temperature difference is equal to or greater than the predetermined temperature difference threshold in the temperature adjustment air volume control mode, the opening degree of the damper is increased as the difference between the temperature difference and the temperature difference threshold increases; When the temperature difference is less than the predetermined temperature difference threshold in the temperature adjustment air volume control mode, the opening degree of the damper is reduced as the difference between the temperature difference and the temperature difference threshold increases, In the humidity control air volume control mode, when the humidity difference is equal to or greater than the predetermined humidity difference threshold, the opening degree of the damper is increased as the difference between the humidity difference and the humidity difference threshold increases; When the humidity difference is less than the predetermined humidity difference threshold in the humidity control air volume control mode, the opening degree of the damper is reduced as the difference between the humidity difference and the humidity difference threshold increases.

3. The air conditioning system of claim 2.

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