Air-conditioning cooperation system and control device

Abstract

An air conditioning cooperation system (1) adjusts the air state of a target space (S). An air-conditioning cooperation system (1) is provided with: an outside air introduction device (2) that regulates the target state quantity of a target space (S) by introducing outside air; an air processor (3) having a processing unit for conditioning the target state quantity by processing air; a control unit (10) that sets a first air volume (W1) of the external air introduction device (2) and a second air volume (W2) of the air handling unit (3); and a storage unit (11) that stores relationship information indicating the relationship among a selected state quantity, the first air volume (W1), and the second air volume (W2), the selected state quantity being the state quantity of the target space (S) different from the target state quantity and changing in accordance with at least one of the outside air introduction device (2) and the air handling unit (3). The control unit (10) sets the first air volume (W1) and the second air volume (W2) on the basis of the relationship information on the basis of the selected state quantity.

Description

Technical Field

[0001] The present disclosure relates to an air conditioning cooperation system and a control device. Background Art

[0002] In the target space, a ventilator and an air conditioner are installed to make the target space comfortable. From the viewpoint of reducing the concentration of the target substance (harmful substance or pathogen) to below a reference, ventilation of a certain amount or more is required.

[0003] On the other hand, from the viewpoint of energy saving, a ventilation device that reduces energy consumption has been proposed (for example, Patent Document 1). Prior art literature Patent Literature

[0004] Patent Document 1: Japanese Patent Application Publication No. 2013-92267 Summary of the invention Technical problem to be solved by the invention

[0005] However, currently, the ventilation device and the air conditioner are operated by independent control. In the case of reducing the concentration of the target substance in the target space to below the reference, when each device operates independently in a manner to meet the condition, from the perspective of the system as a whole, unnecessary operations may be performed for the purpose of meeting the condition. This is not limited to the case of reducing the concentration of the target substance to below the reference. Therefore, from the perspective of energy saving, there is room for improvement in the operation of these devices. Technical solutions adopted to solve technical problems

[0006] An air conditioning cooperation system of the first viewpoint for solving the technical problem is an air conditioning cooperation system for adjusting the air state of an object space, the air conditioning cooperation system comprising: an external air introduction machine, the external air introduction machine introduces external air into the object space to adjust the object state quantity of the object space; an air handling machine, the air handling machine having a processing unit, the processing unit adjusting the object state quantity by processing the air of the object space; a control unit, the control unit setting a first air volume of the external air introduction machine and a second air volume of the air handling machine; and a storage unit, the storage unit storing relationship information representing the relationship between a selected state quantity, the first air volume, and the second air volume, the selected state quantity being a state quantity of the object space different from the object state quantity and varying according to at least one of the external air introduction machine and the air handling machine, the control unit setting the first air volume and the second air volume based on the selected state quantity and according to the relationship information, the first air volume being the air volume introduced into the object space by the external air introduction machine, and the second air volume being the air volume processed by the air handling machine.

[0007] According to this configuration, when the target state quantity in the regulation target space is adjusted, energy saving can be achieved compared to a case where the outside air introduction device and the air handling device are operated independently. The air conditioning cooperation system of the second viewpoint is based on the air conditioning cooperation system of the first viewpoint, and has a first selected state quantity that changes according to the external air introduction device as the selected state quantity, and the relationship information includes: first derived information for deriving the first air volume based on the first selected state quantity; and second derived information for deriving the second air volume based on the first air volume.

[0008] According to this configuration, the first air volume can be set based on the first selected state quantity. Furthermore, the second air volume can be set based on the first air volume. The air conditioning cooperation system of the third viewpoint is based on the air conditioning cooperation system of the second viewpoint, and the control unit has an air volume range set to make the first selected state quantity satisfy a first benchmark, and the control unit sets the minimum amount of the air volume range set for the first selected state quantity of the object space as the first air volume.

[0009] According to this configuration, the first air volume is set to the minimum volume. Thus, when the air state of the target space is adjusted to adjust the target state quantity and the first selected state quantity satisfies the first reference, energy saving can be achieved while suppressing changes in the indoor environment that may occur due to the introduction of external air.

[0010] An air conditioning cooperative system according to a fourth aspect is the air conditioning cooperative system according to the third aspect, wherein the first selected state quantity is a carbon dioxide concentration, a temperature, or a humidity of the target space. According to this configuration, when the carbon dioxide concentration, temperature or humidity is adjusted by the outside air introduction device, energy saving can be achieved while air conditioning the target space to adjust the target state quantity so that the carbon dioxide concentration, temperature or humidity satisfies the reference.

[0011] The air conditioning cooperation system of the fifth viewpoint is based on the air conditioning cooperation system of the second viewpoint, and the air handling unit includes: an air purifier having the processing unit; and an air conditioner, wherein the air conditioner has the air conditioning unit and the processing unit for adjusting the temperature of the object space, and the second air volume includes the air volume of the air purifier and the air volume of the air conditioner.

[0012] According to this configuration, when the air cleaner and the air conditioner are in operation, the total air volume of the two devices can be adjusted. The air conditioning cooperation system of the sixth viewpoint is based on the air conditioning cooperation system of the first viewpoint, and has a second selected state quantity that is removed through air processing by the air handling unit as the selected state quantity, and the relationship information includes: third derived information for deriving the second air volume based on the second selected state quantity; and fourth derived information for deriving the first air volume based on the second air volume.

[0013] According to this configuration, when the air state of the adjustment target space is adjusted to adjust the target state quantity and the second selected state quantity satisfies the second reference, energy saving can be achieved. The air conditioning cooperation system of the seventh aspect is based on the air conditioning cooperation system of the first aspect, and has a first selected state quantity that changes according to the external air introduction device as the selected state quantity, and the relationship information includes third relationship information, and the third relationship information represents the relationship between the first selected state quantity, the first air volume, and the second air volume. According to this structure, the first air volume and the second air volume can be derived based on the first selected state quantity and the third relationship information.

[0014] The air conditioning cooperative system of the eighth aspect is based on the air conditioning cooperative system of the first aspect, and has a second selected state quantity that is removed by the air processing of the air handling unit as the selected state quantity, and the relationship information includes fourth relationship information, and the fourth relationship information represents the relationship between the second selected state quantity, the first air volume, and the second air volume. According to this structure, the first air volume and the second air volume can be derived based on the second selected state quantity and the fourth relationship information.

[0015] The air conditioning cooperation system of the ninth aspect is based on the air conditioning cooperation system of any one of the first to eighth aspects, and the object state quantity is the pathogen concentration, pollen concentration, PM concentration, dust concentration or harmful chemical substance concentration in the object space. According to this structure, the pathogen concentration, pollen concentration, PM concentration, dust concentration or harmful chemical substance concentration can be adjusted.

[0016] The control device of the tenth viewpoint for solving the technical problem is a control device for controlling a device for adjusting the air state of an object space, the device comprising: an external air introduction machine, the external air introduction machine introduces external air into the object space to adjust the object state quantity of the object space; an air handling machine, the air handling machine having a processing unit, the processing unit adjusting the object state quantity by processing the air of the object space; a control unit, the control unit setting a first air volume of the external air introduction machine and a second air volume of the air handling machine; and a storage unit, the storage unit storing relationship information representing the relationship between a selected state quantity, the first air volume, and the second air volume, the selected state quantity being a state quantity of the object space different from the object state quantity and varying according to at least one of the external air introduction machine and the air handling machine, the control unit setting the first air volume and the second air volume based on the selected state quantity and according to the relationship information, the first air volume being the air volume introduced into the object space by the external air introduction machine, and the second air volume being the air volume processed by the air handling machine.

[0017] According to this configuration, when the target state quantity in the regulation target space is adjusted, energy saving can be achieved compared to a case where the outside air introduction device and the air handling device are operated independently. <Other Viewpoints> This specification discloses the following viewpoints of technology.

[0018] The air conditioning cooperation system of the first viewpoint is an air conditioning cooperation system for adjusting the air state of the target space, and the air conditioning cooperation system includes: an external air introduction machine, which introduces external air into the target space to adjust the target substance concentration in the target space; an air handling machine, which has a processing unit, which adjusts the target substance concentration by processing the air in the target space; and a control unit, which sets a first air volume of the external air introduction machine and a second air volume of the air handling machine, and the control unit sets the air volume of the first air volume and the second air volume based on the necessary air volume and the air volume of one of the first air volume and the second air volume, the necessary air volume is the air volume required to guide the target substance concentration to the target concentration, the first air volume is the air volume introduced into the target space by the external air introduction machine, and the second air volume is the air volume processed by the air handling machine.

[0019] According to this configuration, when the target substance concentration is brought close to the target concentration, energy saving can be achieved compared to a case where the outside air introduction device and the air handling device are operated independently. The air conditioning cooperation system of the second viewpoint is based on the air conditioning cooperation system of the first viewpoint, and the state quantity which is different from the concentration of the target substance and adjusted by the introduction of external air by the external air introduction device is defined as a first selected state quantity, and the control unit sets the first air volume so that the first selected state quantity of the target space satisfies a first benchmark, and sets the second air volume based on the first air volume.

[0020] According to this configuration, when the air state of the target space is adjusted so that the target substance concentration approaches the target concentration and the first selected state quantity satisfies the first reference, energy saving can be achieved. The air conditioning cooperation system of the third viewpoint is based on the air conditioning cooperation system of the second viewpoint, and the control unit has an air volume range set to make the first selected state quantity satisfy a first benchmark, and the control unit sets the minimum amount of the air volume range set for the first selected state quantity of the object space as the first air volume.

[0021] According to this configuration, the first air volume is set to the minimum volume. Thus, when the air state of the target space is adjusted so that the target substance concentration approaches the target concentration and the first selected state quantity satisfies the first reference, energy saving can be achieved while suppressing changes in the indoor environment that may occur due to the introduction of external air.

[0022] The air conditioning cooperation system of the fourth viewpoint is based on the air conditioning cooperation system of the first viewpoint, and a state quantity that is different from the concentration of the target substance and is removed by air processing of the air handling unit is defined as a second selected state quantity, and the control unit sets the second air volume so that the second selected state quantity of the target space satisfies a second benchmark, and sets the first air volume based on the second air volume.

[0023] According to this configuration, energy saving can be achieved when the air state of the target space is adjusted so that the target substance concentration approaches the target concentration and the second selected state quantity satisfies the second reference. An air-conditioning cooperative system according to a fifth aspect is the air-conditioning cooperative system according to the second aspect or the third aspect, wherein the first selected state quantity is a carbon dioxide concentration in the target space.

[0024] According to this configuration, when the carbon dioxide concentration is adjusted by the outside air introduction device, energy saving can be achieved while air conditioning the target space so that the target substance concentration approaches the target concentration and the carbon dioxide concentration satisfies the reference.

[0025] The air conditioning cooperation system of the sixth viewpoint is based on the air conditioning cooperation system of any one of the second viewpoint, the third viewpoint and the fifth viewpoint, the air conditioning processor includes an air purifier and an air conditioner, the air purifier has the processing unit, the air conditioner has the air conditioning unit for adjusting the temperature of the target space and the processing unit, the second air volume includes the air volume of the air purifier and the air volume of the air conditioner, and the first selected state quantity is the carbon dioxide concentration of the target space.

[0026] According to this configuration, when the carbon dioxide concentration is adjusted by the outside air introduction device, energy saving can be achieved while air conditioning the target space so that the target substance concentration approaches the target concentration and the carbon dioxide concentration satisfies the reference.

[0027] The air conditioning cooperation system of the seventh viewpoint is based on the air conditioning cooperation system of the sixth viewpoint, and the air volume processed by the processing unit in the air purifier is defined as the third air volume, and the air volume processed by the air conditioning unit and the processing unit in the air conditioner and set based on the temperature of the object space is defined as the fourth air volume, and the control unit sets the third air volume based on the second air volume and the fourth air volume.

[0028] According to this configuration, since the operation of the air cleaner and the operation of the air conditioner are coordinated with respect to the air volume, energy saving can be achieved compared to a case where such coordination is not performed. An air conditioning cooperative system according to an eighth aspect is the air conditioning cooperative system according to any one of the second aspect, the third aspect, and the fifth aspect to the seventh aspect, wherein the first selected state quantity is the temperature or humidity of the target space.

[0029] According to this structure, when the temperature or humidity of the target space is adjusted by the external air introduction device, energy saving can be achieved while air conditioning the target space so that the concentration of the target substance approaches the target concentration and the temperature or humidity of the target space meets the reference by introducing external air.

[0030] The air conditioning cooperation system of the ninth viewpoint is based on the air conditioning cooperation system of the first viewpoint. When a unit amount of external air is introduced into the target space, the sum of the energy consumption of the external air introduction machine required for the introduction of the external air and the energy consumption of the air handling machine required to restore the target space after the unit amount of the external air is introduced to the temperature before the external air is introduced is defined as the first energy consumption. When a unit amount of air in the target space is processed, the energy consumption of the air handling machine required for processing the unit amount of air is defined as the second energy consumption. The air handling machine has the processing unit and the air conditioning unit for adjusting the temperature of the target space. The control unit determines whether the first energy consumption is greater than the second energy consumption. When the first energy consumption is greater than the second energy consumption, the control unit sets the first air volume so that the first energy consumption is less than the size at the time of determination, and sets the second air volume based on the first air volume. When the first energy consumption is less than the second energy consumption, the control unit sets the second air volume so that the second energy consumption is less than the size at the time of determination, and sets the first air volume based on the second air volume.

[0031] According to this structure, when the air handling unit performs air conditioning on the target space, the air volume is set so that the energy of the device with the larger energy consumption in the comparison between the first energy consumption based on the introduction of external air by the external air introduction unit and the second energy consumption based on the air treatment by the air handling unit is less than the energy at the time of judgment. Thus, the sum of the energy consumption of the external air introduction unit and the energy consumption of the air handling unit, that is, the total energy consumption, can be reduced.

[0032] The air conditioning cooperation system of the tenth viewpoint is based on the air conditioning cooperation system of the first viewpoint. When a unit amount of external air is introduced into the target space, the sum of the energy consumption of the external air introduction machine required for the introduction of the external air and the energy consumption of the air handling machine required to restore the target space after the introduction of the unit amount of the external air to the temperature before the introduction of the external air is defined as a first energy consumption. When a unit amount of air in the target space is processed, the energy consumption of the air handling machine required for processing the unit amount of air is defined as a second energy consumption. The state quantity that is different from the concentration of the target substance and is adjusted by the introduction of external air by the external air introduction machine is defined as a first selected state quantity. The control unit has a predetermined prescribed air volume as the air volume of the external air introduction machine required to make the first selected state quantity in the target space meet the first benchmark. The air handling machine has the processing unit and an air conditioning unit that adjusts the temperature of the target space. When the first energy consumption is greater than the second energy consumption, the control unit sets the first air volume to an air volume greater than the prescribed air volume so that the first selected state quantity of the target space meets the first benchmark, and sets the second air volume based on the first air volume.

[0033] There is a situation where the first selected state quantity that can only be adjusted by the external air introduction device needs to be adjusted, and the introduction of external air by the external air introduction device in the air conditioning of the target space is not conducive to energy consumption. According to the above structure, in this situation, by setting the first air volume of the external air introduction device to an air volume greater than the specified air volume as described above, energy saving can be achieved while performing air conditioning of the target space so that the concentration of the target substance approaches the target concentration and the first selected state quantity satisfies the first benchmark.

[0034] The air conditioning cooperative system of the eleventh aspect is based on the air conditioning cooperative system of the first aspect, in the case of introducing a unit amount of external air into the target space, the sum of the energy consumption of the external air introduction machine required for introducing the external air and the energy consumption of the air handling machine required for restoring the target space after the unit amount of the external air is introduced to the temperature before the external air is introduced is defined as a first energy consumption, in the case of processing a unit amount of air in the target space, the energy consumption of the air handling machine required for processing the unit amount of air is defined as a second energy consumption, a state quantity that is different from the concentration of the target substance and can be adjusted by air processing of the air handling machine is defined as a second selected state quantity, the control unit has a predetermined prescribed air volume as the air volume of the air handling machine required to make the second selected state quantity in the target space meet a second benchmark, the air handling machine has the processing unit and an air conditioning unit that adjusts the temperature of the target space, and when the first energy consumption is less than the second energy consumption, the control unit sets the second air volume to an air volume greater than the prescribed air volume so that the second selected state quantity of the target space meets the second benchmark, and sets the first air volume based on the second air volume.

[0035] There is a situation where the second selected state quantity that can only be formed by the air handling unit needs to be adjusted, and operating the air handling unit in the air conditioning of the target space is disadvantageous for energy consumption. According to the above structure, in this situation, by setting the second air volume of the air handling unit to an air volume greater than the prescribed air volume as described above, energy saving can be achieved while performing air conditioning of the target space so that the target substance concentration approaches the target concentration and the second selected state quantity satisfies the second reference.

[0036] The air conditioning cooperation system of the twelfth aspect is based on the air conditioning cooperation system of any one of the first to eleventh aspects, and the target substance concentration is the pathogen concentration, pollen concentration, PM concentration, dust concentration or harmful chemical substance concentration in the target space.

[0037] According to this configuration, energy saving can be achieved when the pathogen concentration, pollen concentration, PM concentration, dust concentration, or harmful chemical substance concentration in the target space is brought close to the target concentration. The control device of the thirteenth viewpoint for solving the technical problem is a control device for controlling a device for adjusting the air state of an object space, the device comprising: an external air introduction machine, the external air introduction machine adjusting the concentration of an object substance in the object space by introducing external air into the object space; and an air handling machine, the air handling machine having a processing unit, the processing unit adjusting the concentration of the object substance by processing the air in the object space, the control device setting the air volume of the first air volume and the second air volume of the air handling machine based on the necessary air volume and the air volume of one of the first air volume of the external air introduction machine and the second air volume of the air handling machine, the necessary air volume being the air volume required to guide the concentration of the object substance to the target concentration, the first air volume being the air volume introduced into the object space by the external air introduction machine, and the second air volume being the air volume processed by the air handling machine.

[0038] According to this configuration, when the target substance concentration is brought close to the target concentration, energy saving can be achieved compared to a case where the outside air introduction device and the air handling device are operated independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the air-conditioning cooperative system according to the first embodiment. Figure 2 This is a diagram showing the relationship among the required air volume, the first air volume, and the second air volume. Figure 3 It is a schematic diagram of the air-conditioning cooperative system according to the second embodiment. Figure 4 It is a schematic diagram of an air-conditioning cooperative system according to a third embodiment. Figure 5 It is a schematic diagram of an air-conditioning cooperative system according to a fourth embodiment. Figure 6 This is a diagram showing the relationship between the required air volume and the first to fourth air volumes. Figure 7 It is a schematic diagram of an air-conditioning cooperative system according to a fifth embodiment. Figure 8 It is a schematic diagram of an air-conditioning cooperative system according to a sixth embodiment. Fig. 9 It is a schematic diagram of an air-conditioning cooperative system according to a seventh embodiment. Fig.10 It is a schematic diagram of an air-conditioning cooperative system according to an eighth embodiment. DETAILED DESCRIPTION

[0040] <First embodiment> Reference Figure 1 , the air conditioning cooperation system 1 is explained. The air conditioning cooperation system 1 adjusts the air state of the object space S between multiple devices. The air conditioning cooperation system 1 adjusts the object state quantity in the object space S through the cooperation of multiple devices. An example of the object state quantity is the concentration of the object substance in the object space S. In the following example, the object state quantity is the concentration of the object substance. In the present embodiment, the air conditioning cooperation system 1 adjusts the concentration of the object substance in the object space S through the cooperation of multiple devices. The object space S is a space that is used as an object of air conditioning. As the object space S, for example, there can be cited the indoor space of a building, the indoor space of a house, the space in a factory, and the space in a facility.

[0041] The target substance T is a substance floating in the air. The target substance T may also be a substance floating in the air and affecting the human body. As substances that can be treated as the target substance T, pathogens, pollen, PM (particulate matter), dust or harmful chemicals can be cited. In the present embodiment, the target substance T of the air conditioning cooperation system 1 is a substance that can be removed from the target space S by any one of the external air introduction machine 2 and the air handling machine 3 described later. The target substance T of the air conditioning cooperation system 1 can be changed according to the structure of the air conditioning cooperation system 1 or the surrounding environment of the target space S. In the air conditioning cooperation system 1, the target substance T is pre-set.

[0042] Examples of pathogens include coronavirus, influenza virus, rubella virus, rhinovirus, RS virus, adenovirus and tuberculosis bacteria. Examples of the pollen include cedar pollen, cypress pollen, ragweed pollen, camphor tree pollen, and rice pollen.

[0043] PM includes solid particles or liquid particles with a diameter of 10 μm or less. Solid particles include coal, soil particles, factory dust, yellow sand, petroleum-related substances, and asbestos particles.

[0044] Examples of harmful chemical substances include volatile organic compounds, such as formaldehyde, acetaldehyde, toluene, xylene, ethylbenzene, styrene, p-dichlorobenzene, and chlorpyrifos.

[0045] The target substance concentration includes, for example, a pathogen concentration, a pollen concentration, a PM concentration, a dust concentration, and a harmful chemical substance concentration in the target space S. <Structure of air conditioning cooperation system> The air conditioning cooperation system 1 includes an external air introduction device 2, an air handling unit 3 and a control unit 10. The air conditioning cooperation system 1 may also include a storage unit 11. The external air introduction device 2 adjusts the concentration of the target substance in the target space S by introducing external air into the target space S. As examples of the external air introduction device 2, a ventilation device and a total heat exchanger can be cited. The ventilation device can be a device for performing the first type of ventilation, a device for performing the second type of ventilation, or a device for performing the third type of ventilation. The first type of ventilation is ventilation in which air is supplied and exhausted by a fan. The second type of ventilation is ventilation in which air is supplied by a fan and exhausted from a gap or an exhaust port. The third type of ventilation is ventilation in which air is exhausted by a fan and supplied from a gap or an air supply port. In the case of the first type of ventilation, the air volume introduced by the external air is defined as the air volume of the supply air. In the case of the second type of ventilation, the air volume introduced by the external air is defined as the air volume of the supply air. In the case of the third type of ventilation, the exhaust air volume can be regarded as equivalent to the supply air volume, and therefore, the air volume introduced by the outside air is defined as the exhaust air volume.

[0046] The air handling machine 3 has a processing unit 6. The processing unit 6 is a device that adjusts the concentration of the target substance by processing the air of the target space S. The air handling machine 3 blows out the inhaled air after processing it through the processing unit 6. The processing unit 6 removes the target substance T. Examples of the processing unit 6 include a filter, a UV device, an ion generator device, a virus removal diffusion device, and a streamer device.

[0047] Examples of the air handling device 3 include an air conditioner 4 having a processing unit 6A (hereinafter referred to as "air conditioner 4") and an air cleaner 5. The air handling device 3 may include both the air conditioner 4 and the air cleaner 5.

[0048] The air conditioner 4 processes the target substance T through the processing unit 6A. In addition, the air conditioner 4 adjusts the temperature or humidity of the target space S. The air conditioner 4 may also be an air blower. The air blower adjusts the temperature of the target space S by moving the air in the target space S, and therefore, it is equivalent to a form of the air conditioner 4. The air conditioner 4 may also be a heater that only produces warm air. The air conditioner 4 may also be a humidifier or a dehumidifier.

[0049] The control unit 10 includes one or more CPUs (central processing units) or MPUs (microprocessing units). The control unit 10 can be configured as a circuit (circuitry) including: (1) one or more processors that perform various processes according to a computer program (software); (2) one or more dedicated hardware circuits such as integrated circuits (ASICs) for specific purposes that perform at least a portion of the various processes; or (3) a combination of the above. The processor includes a CPU and a memory such as a RAM and a ROM, and the memory stores program codes or instructions that are configured to cause the CPU to perform the process. The memory, i.e., a computer-readable medium, includes all available media that can be accessed by a general-purpose or special-purpose computer. The storage unit 11 is provided separately from the control unit 10. The storage unit 11 includes all available media that can be accessed by a general-purpose or special-purpose computer. The storage unit 11 includes a memory such as a RAM and a ROM. The storage unit 11 can also be configured by a hard disk, a magnetic tape, an optical disk, or a magnetic disk. The storage unit 11 stores relationship information representing the relationship between the first air volume W1 and the second air volume W2. The relationship information can also be stored in the memory of the control unit 10.

[0050] In one example, the control unit 10 is provided on a substrate. The control unit 10 may also be installed in the external air introduction device 2. The control unit 10 may also be installed in the air handling unit 3. The control unit 10 may also be configured as a device independent of the external air introduction device 2 and the air handling unit 3. The control unit 10 may also be connected to a network. The control unit 10 may also be managed through an external terminal via the network.

[0051] The control unit 10 communicates with the outside air introduction device 2. In one example, the control unit 10 communicates with the control unit 2A of the outside air introduction device 2. The control unit 2A controls the fan of the outside air introduction device 2 based on the command of the control unit 10, thereby adjusting the air volume of the outside air introduction device 2 to the commanded air volume.

[0052] The control unit 10 communicates with the air handling machine 3. In one example, the control unit 10 communicates with the control unit 3A of the air handling machine 3. The control unit 3A controls the fan of the air handling machine 3 based on the command of the control unit 10, thereby adjusting the air volume of the air handling machine 3 to the commanded air volume.

[0053] The control unit 10 sets the first air volume W1 of the external air introduction device 2 and the second air volume W2 of the air handling unit 3. The control unit 10 sets the air volume of the first air volume W1 and the second air volume W2 based on the necessary air volume WA required to guide the concentration of the target substance to the target concentration and the air volume of one of the first air volume W1 and the second air volume W2. The first air volume W1 is the air volume introduced into the target space S by the external air introduction device 2, and the second air volume W2 is the air volume processed by the air handling unit 3.

[0054] Figure 2 1 is a diagram showing the relationship among the required air volume WA, the first air volume W1, and the second air volume W2. Figure 2 The relationship between the required air volume WA, the first air volume W1, and the second air volume W2 shown is an example of the above-mentioned relationship information. Here, the intermediate air volume WX is the air volume of the air not containing the target substance T blown out from the air handling unit 3. The first air volume W1 is the air volume of the outside air, and therefore, it is assumed to be the air volume of the air not containing the target substance T.

[0055] like Figure 2 As shown, the control unit 10 adjusts the air volume of the external air introduction device 2 and the air handling unit 3 respectively so that the sum of the first air volume W1 and the intermediate air volume WX is the required air volume WA, and issues an instruction for each device to operate at a specified air volume. The required air volume WA may also be a fixed value set by a user's operation. The required air volume WA may also be a value updated at any time. In one example, the control unit 10 updates the required air volume WA according to the number of users entering and exiting the target space S. The users entering and exiting the target space S are detected, for example, by a sensor.

[0056] <Required air volume> The required air volume WA may be set by selecting a preset air volume level. In one example, the air volume level is selected by the user operating the control unit 10 .

[0057] The required air volume WA may be set for each target substance T. For example, the required air volume WA is set to X1 for coronavirus, X2 for influenza, and X3 for PM2.5. In this case, the required air volume WA is set according to the selection of the target substance T. The selection of the target substance T is performed by the user operating the control unit 10.

[0058] The control unit 10 may also calculate the required air volume WA. For example, the control unit 10 calculates the required air volume WA based on setting information. The setting information is the number of users (hereinafter referred to as the number of users) using the target space S or the expected number of infected persons. The setting information may also include an infection prevention degree. The setting information may also include a risk degree.

[0059] In the first example, the control unit 10 calculates the required air volume WA based on the number of users (hereinafter referred to as the number of users) using the target space S. Specifically, the control unit 10 calculates the required air volume WA based on the pathogen removal capacity required for each infected person and the number of users. In one example, the control unit 10 calculates the required air volume WA by multiplying the pathogen removal capacity required for each infected person by the number of users.

[0060] In the second example, the control unit 10 calculates the necessary air volume WA based on the pathogen removal capacity required for each infected person and the expected number of infected persons. In one example, the control unit 10 calculates the necessary air volume WA by multiplying the pathogen removal capacity required for each infected person by the expected number of infected persons.

[0061] The pathogen removal capacity required for each infected person is represented by the air volume. The pathogen removal capacity required for each infected person can also be determined based on the WHO standard. WHO is the abbreviation of the World Health Organization. For example, the pathogen removal capacity required for each infected person is set based on the standards recommended by WHO to medical facilities. The standards recommended by WHO to medical facilities are shown in the guideline "Recommendations for Natural Ventilation for Infection Control in Medical Facilities" issued in 2009. The pathogen removal capacity required for each infected person can also be a value different from the standards recommended by WHO to medical facilities.

[0062] In the third example, the control unit 10 corrects the necessary air volume WA calculated in the first example or the second example according to the infection prevention degree. When the infection prevention degree is high, the infection is not easy to spread. Therefore, the control unit 10 reduces the necessary air volume WA when the infection prevention degree is high. Specifically, the control unit 10 corrects the necessary air volume WA to reduce the necessary air volume WA calculated in the first example or the second example. In one example, the control unit 10 has a first coefficient corresponding to the infection prevention degree. The higher the infection prevention degree, the smaller the value of the first coefficient. The first coefficient is a value greater than 0 and less than 1. The control unit 10 corrects the necessary air volume WA by the first coefficient. The control unit 10 derives a new necessary air volume WA by multiplying the necessary air volume WA calculated in the first example or the second example by the first coefficient.

[0063] In the fourth example, the control unit 10 corrects the required air volume WA calculated in the first example, the second example, or the third example according to the classification of the risk level. When the risk level is high, the risk of severe illness increases. Therefore, the control unit 10 increases the required air volume WA when the risk level is high. Specifically, the control unit 10 corrects the required air volume WA to increase the required air volume WA calculated in the first example, the second example, or the third example. In one example, the control unit 10 has a second coefficient corresponding to the risk level. The higher the risk level, the larger the value of the second coefficient. The second coefficient is a value greater than 0. The control unit 10 corrects the required air volume WA by the second coefficient. The control unit 10 derives a new required air volume WA by multiplying the required air volume WA calculated in the first example, the second example, or the third example by the second coefficient.

[0064] <First example of air conditioning cooperative system> The first example of the air conditioning cooperation system 1 derives the second air volume W2 based on the necessary air volume WA and the first air volume W1. In this example, the first air volume W1 is set with priority over the second air volume W2. The target space S is an indoor space. The target substance T is a pathogen. The external air introduction device 2 is a ventilation device. The air handling machine 3 is an air conditioner 4. The air handling machine 3 has a processing unit 6A.

[0065] The control unit 10 receives the necessary air volume WA through the operation of the user. The control unit 10 receives the first air volume W1 through the operation of the user. The control unit 10 sets the second air volume W2 based on the necessary air volume WA and the first air volume W1. For example, the control unit 10 calculates the value obtained by subtracting the first air volume W1 from the necessary air volume WA as the intermediate air volume WX. The control unit 10 corrects the intermediate air volume WX by the conversion value. The control unit 10 sets the value obtained by the correction as the second air volume W2.

[0066] The conversion value indicates the ratio of the air volume from which the target substance T is removed to the air volume processed by the air handling unit 3. For example, when the concentration of the target substance T in the blown air changes from 100 at the time of inhalation to 30 when the air handling unit 3 processes the air, the conversion value is set to 0.7. This is a calculation method that deems that the target substance T in 70% of the air at the time of inhalation is removed when the concentration changes from 100 at the time of inhalation to 30. When the conversion value is 0.7, the control unit 10 outputs the value obtained by dividing the intermediate air volume WX by the conversion value (0.7) as the second air volume W2.

[0067] <Second example of air conditioning cooperative system> The second example of the air conditioning cooperation system 1 derives the first air volume W1 based on the necessary air volume WA and the second air volume W2. In this example, the second air volume W2 is set with priority over the first air volume W1. The target space S is an indoor space. The target substance T is a pathogen. The external air introduction device 2 is a ventilation device. The air handling machine 3 is an air conditioner 4. The air handling machine 3 has a processing unit 6A.

[0068] The air handling unit 3 sets the second air volume W2 based on the indoor temperature TA and the set temperature. The set temperature is a target indoor temperature set by a user. The user is a user of the room or an air conditioning manager who manages indoor air conditioning.

[0069] The control unit 10 receives the necessary air volume WA through the operation of the user. The control unit 10 receives the second air volume W2 from the air handling unit 3. The control unit 10 sets the first air volume W1 based on the necessary air volume WA and the second air volume W2. For example, the control unit 10 corrects the second air volume W2 by the conversion value. The control unit 10 sets the value obtained by the correction as the corrected air volume. When the conversion value is 0.7, the control unit 10 outputs the value obtained by multiplying the second air volume W2 by the conversion value (0.7) as the corrected air volume. In addition, the control unit 10 outputs the value obtained by subtracting the corrected air volume from the necessary air volume WA as the first air volume W1.

[0070] <Function> At present, the external air introduction machine 2 and the air handling machine 3 each have their own purpose of setting, so the external air introduction machine 2 and the air handling machine 3 each operate independently. The external air introduction machine 2 is set in a building for ventilation. The air handling machine 3 is set in a building for air conditioning. On the other hand, the external air introduction machine 2 and the air handling machine 3 set in a specified space use a common space as the object of action. That is, the object space S that is the object of the external air introduction machine 2 and the air handling machine 3 is acted upon by the two devices. As a result, the specified state quantity of the object space S changes according to the actions of the two devices. As a result, the specified state quantity sometimes deviates greatly from the target. Or, the specified state quantity sometimes maintains a balance through the excessive actions of the two devices. In this way, either or both of the two devices may perform unnecessary actions. At this point, the control unit 10 of the air conditioning cooperative system 1 adjusts the air volume of the two devices. Thus, energy saving in air conditioning can be achieved. In addition, the control unit 10 sets the air volume of the other party on the basis of preferentially setting the air volume of one of the two devices. Thus, the complexity of cooperative control can be suppressed.

[0071] <Effect> The effects of this embodiment will be described. (1) The air conditioning cooperative system 1 includes an external air introduction machine 2, an air handling machine 3, and a control unit 10. The control unit 10 sets a first air volume W1 of the external air introduction machine 2 and a second air volume W2 of the air handling machine 3. The control unit 10 sets the air volume of the first air volume W1 and the second air volume W2 based on the required air volume WA and the air volume of one of the first air volume W1 and the second air volume W2. The first air volume W1 is the air volume introduced into the target space S by the external air introduction machine 2. The second air volume W2 is the air volume processed by the air handling machine 3. According to this structure, when the concentration of the target substance is brought close to the target concentration, energy saving can be achieved compared with the case where the external air introduction machine 2 and the air handling machine 3 operate independently.

[0072] (2) The target substance concentration is a pathogen concentration, a pollen concentration, a PM concentration, a dust concentration, or a harmful chemical substance concentration in the target space S. According to this configuration, energy saving can be achieved when the pathogen concentration, the pollen concentration, the PM concentration, the dust concentration, or the harmful chemical substance concentration in the target space S is brought close to the target concentration.

[0073] <Second embodiment> Reference Figure 3 , an air conditioning cooperation system 1 according to a second embodiment will be described. In the air conditioning cooperation system 1 of this embodiment, the same reference numerals as those of the first embodiment are given to the same components as those of the first embodiment, and duplicate descriptions are omitted.

[0074] The air conditioning cooperative system 1 of the present embodiment includes the first example of the first embodiment. The air conditioning cooperative system 1 of the present embodiment is different from the first example in the following respects. In the first example, the first air volume W1 is set by a user operation. In contrast, in the present embodiment, the first air volume W1 is set based on a prescribed rule.

[0075] The air conditioning cooperation system 1 adjusts the concentration of the target substance in the target space S through the cooperation of the external air introduction device 2 and the air handling machine 3. The target substance T is, for example, a pathogen. The air conditioning cooperation system 1 also adjusts a first selected state quantity of the target space S. The first selected state quantity is a state quantity of the target space S different from the concentration of the target substance, and changes according to at least one of the external air introduction device 2 and the air handling machine 3.

[0076] The first selected state quantity is a state quantity different from the concentration of the target substance, and is a state quantity that is adjusted by the introduction of external air by the external air introduction device 2. The first selected state quantity is a quantity that is difficult to adjust by the air handling unit 3. For example, the first selected state quantity is the carbon dioxide concentration in the target space S. Although carbon dioxide CO2 can be removed by a predetermined chemical treatment, the device used for this treatment is a large device. Therefore, carbon dioxide CO2 is selected as the first selected state quantity as a quantity that can only be adjusted by the external air introduction device 2.

[0077] The control unit 10 sets the first air volume W1 so that the first selected state quantity of the target space S satisfies the first reference. The control unit 10 has an air volume range set so that the first selected state quantity satisfies the first reference. The first reference is preset. For example, the first reference represents the first selected state quantity at which a person can spend time comfortably in the object space S. In the present embodiment, the first reference is set to a range of carbon dioxide concentration at which a person can spend time comfortably in the object space S. An example of control performed by two control units 10 is described below.

[0078] <First example> The control unit 10 determines whether the first selected state quantity of the target space S satisfies the first reference based on the sensor that detects the first selected state quantity. For example, when the first selected state quantity is the carbon dioxide concentration, the control unit 10 determines whether the first selected state quantity of the target space S is less than the first reference value based on the concentration detection value of the carbon dioxide sensor set in the target space S. When the concentration detection value of the carbon dioxide sensor is greater than the first reference value, the control unit 10 sets the first air volume W1 so that the concentration detection value of the carbon dioxide sensor is close to the first reference value. In one example, the control unit 10 sets the first air volume W1 based on the difference between the concentration detection value of the carbon dioxide sensor and the first reference value. Through such control, when the concentration detection value of the carbon dioxide sensor is greater than the first reference value and the difference is larger, the first air volume W1 is larger. When the concentration detection value of the carbon dioxide sensor is close to the first reference value, the first air volume W1 gradually decreases and then converges to a certain air volume. In addition, the control unit 10 sets the second air volume W2 based on the first air volume W1 each time the first air volume W1 is set. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the required air volume WA and the first air volume W1.

[0079] <Second example> The first reference may also have different levels selected by the user. The level of the first reference is selected by the user. In each level of the first reference, an air volume range is set corresponding to each level. When the level of the first reference is low, that is, when the concentration is low, the first air volume W1 is set to a larger value because the concentration needs to be reduced. When the level of the first reference is high, that is, when the concentration is high, the first air volume W1 is set to a smaller value because there is no need to reduce the concentration. For example, when the first selected state quantity is the carbon dioxide concentration, it is set as follows. When the carbon dioxide concentration is the first level (A1ppm or more and less than A2ppm), the air volume range is set to B2 or more and less than B3. When the carbon dioxide concentration is the second level (A2ppm or more and less than A3ppm), the air volume range is set to B1 or more and less than B2. In this case, the control unit 10 sets the minimum amount in the air volume range corresponding to the level selected by the user as the first air volume W1. In this way, in the setting of the minimum amount, while satisfying the level of the first reference set by the user, the amount of external air introduced can be suppressed.

[0080] For example, when the user sets the level of the first reference to the first level, the control unit 10 sets B2, which is the minimum volume in the range of the air volume range greater than B2 and less than B3, as the first air volume W1. In addition, the control unit 10 sets the second air volume W2 based on the first air volume W1. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the necessary air volume WA and the first air volume W1.

[0081] <Third Example> In the first example, the control unit 10 sets the first air volume W1 so that the first selected state quantity of the target space S satisfies the first reference. Each time the control unit 10 sets the first air volume W1, it sets the second air volume W2 based on the first air volume W1.

[0082] In contrast, the control unit 10 sets the first air volume W1 and the second air volume W2 based on the following relationship information. The relationship information is pre-stored in the storage unit 11. The relationship information indicates the relationship between the first selected state quantity, the first air volume W1, and the second air volume W2, wherein the first selected state quantity is a state quantity of the target space S different from the target substance concentration and changes according to at least one of the external air introduction device 2 and the air handling unit 3.

[0083] <Case 3-1> The relationship information includes: first derived information for deriving the first air volume W1 based on the first selected state quantity and second derived information for deriving the second air volume W2 based on the first air volume W1. For example, the first derived information is information that associates the first selected state quantity with the first air volume W1 in such a way that the larger the value of the first selected state quantity is, the larger the value of the first air volume W1 is. The second derived information is configured so that the relationship between the first air volume W1 and the second air volume W2 satisfies the relationship shown in the first embodiment. The relationship shown in the first embodiment is a relationship in which the sum of the first air volume W1 and the intermediate air volume WX is the necessary air volume WA. As a result, the object space S is fully ventilated.

[0084] The control unit 10 may also have an air volume range set so that the first selected state quantity satisfies the first benchmark. The air volume range is set in advance. The air volume range is stored in the storage unit 11. The control unit 10 sets the minimum amount of the air volume range set for the first selected state quantity of the object space S to the first air volume W1. An example of the minimum amount is set to the minimum value required for the preferred ventilation. The minimum amount can be set arbitrarily. The minimum amount can also be changed according to the number of people in the object space S. According to this structure, the first selected state quantity in the object space S can satisfy the first benchmark.

[0085] <Case 3-2> An example of relationship information is constituted such that the first selected state quantity of the object space S satisfies the first benchmark. In the relationship information, the relationship between the first selected state quantity, the first air volume W1, and the second air volume W2 is set with the purpose of the first selected state quantity of the object space S satisfying the first benchmark. For example, it is set such that the value of the first selected state quantity is greater than the first benchmark value, and the greater the difference between the first selected state quantity and the first benchmark value, the first air volume W1 is greater than the second air volume W2 and the greater the difference. In addition, the value of the first air volume W1 and the value of the second air volume W2 are set for each value of the first selected state quantity. That is, the first selected state quantity, the first air volume W1, and the second air volume W2 are constituted in the form of table data. In this case, the control unit 10 refers to the relationship information and sets the first air volume W1 and the second air volume W2 based on the selected state quantity.

[0086] <Case 3-3> Another example of relationship information has first setting information and second setting information. The first information is information for setting the first air volume W1 so that the first selected state quantity of the object space S satisfies the first benchmark. The first setting information is constructed according to the size of the object space S. The larger the object space S is, the larger the value of the first air volume W1 is. In addition, the first setting information can also be constructed based on the difficulty of natural wind entering and the size of the object space S. The second setting information is information indicating the relationship between the first air volume W1 and the second air volume W2. According to the second setting information, the second air volume W2 can be set based on the first air volume W1. In this case, the control unit 10 sets the first air volume W1 so that the first selected state quantity of the object space S satisfies the first benchmark, and then sets the second air volume W2 based on the first air volume W1.

[0087] <Effect> The effects of this embodiment will be described. (1) The control unit 10 sets the first air volume W1 and the second air volume W2 based on the first selected state quantity and in accordance with the relationship information. According to this configuration, when the target substance concentration (target state quantity) in the target space S is adjusted, the first air volume W1 and the second air volume W2 are set to a predetermined relationship, thereby achieving energy saving compared to a case where the external air introduction device 2 and the air handling unit 3 operate independently.

[0088] (2) The relationship information includes: first derived information for deriving the first air volume W1 based on the first selected state quantity and second derived information for deriving the second air volume W2 based on the first air volume W1. According to this structure, the first air volume W1 can be set based on the first selected state quantity. In addition, the second air volume W2 can be set based on the first air volume W1.

[0089] (3) The control unit 10 sets the minimum amount of the air volume range set for the first selected state quantity of the target space S as the first air volume W1. According to this structure, the first air volume W1 is set to the minimum amount. Thus, when the air state of the target space S is adjusted to adjust the target substance concentration (target state quantity) and the first selected state quantity satisfies the first reference, energy saving can be achieved while suppressing the change of the indoor environment that may occur due to the introduction of external air.

[0090] (4) The first selected state quantity is the carbon dioxide concentration of the target space S. The first selected state quantity may also be the temperature or humidity of the target space S. According to this configuration, when the carbon dioxide concentration, temperature, or humidity is adjusted by the external air introduction device 2, energy saving can be achieved while air conditioning the target space S to adjust the target state quantity and make the carbon dioxide concentration, temperature, or humidity meet the reference.

[0091] (5) The air handling unit 3 may include an air purifier 5 having a processing unit 6B (described later) and an air conditioning unit 7 (described later) for adjusting the temperature of the target space S and an air conditioner 4 having a processing unit 6A. In this case, the second air volume W2 includes the air volume of the air purifier 5 and the air volume of the air conditioner 4. According to this structure, when the air purifier 5 and the air conditioner 4 are in operation, the total air volume of the two devices can be adjusted.

[0092] (6) The control unit 10 sets the first air volume W1 so that the first selected state quantity of the target space S satisfies the first reference. The control unit 10 sets the second air volume W2 based on the first air volume W1. According to this structure, energy saving can be achieved while adjusting the air state of the target space S so that the target substance concentration approaches the target concentration and the first selected state quantity satisfies the first reference.

[0093] (7) The control unit 10 sets the minimum amount of the air volume range set for the first selected state quantity of the target space S to the first air volume W1. According to this structure, the first air volume W1 is set to the minimum amount. In this case, the amount of external air introduced into the target space S is suppressed. Thus, when the air state of the target space S is adjusted so that the concentration of the target substance approaches the target concentration and the first selected state quantity satisfies the first reference, it is possible to achieve energy saving while suppressing the change in the indoor environment that may occur due to the introduction of external air.

[0094] (8) For example, the first selected state quantity is the carbon dioxide concentration of the target space S. According to this configuration, when the carbon dioxide concentration is adjusted by the external air introduction device 2, energy saving can be achieved while air conditioning the target space S so that the target substance concentration approaches the target concentration and the carbon dioxide concentration satisfies the reference.

[0095] <Third Embodiment> Reference Figure 4 , an air conditioning cooperation system 1 according to a third embodiment will be described. In the air conditioning cooperation system 1 of the present embodiment, the same reference numerals as those of the first embodiment are given to the same components as those of the first embodiment, and duplicate descriptions are omitted.

[0096] The air conditioning cooperative system 1 of the present embodiment includes the second example of the first embodiment. The air conditioning cooperative system 1 of the present embodiment is different from the second example in the following point. In the second example, the second air volume W2 is set by the air handling unit 3. In contrast, in the present embodiment, the second air volume W2 is set based on another rule.

[0097] The air conditioning cooperation system 1 adjusts the concentration of the target substance in the target space S by cooperation between the outside air introduction device 2 and the air handling device 3. The target substance T is, for example, a pathogen. The air conditioning cooperation system 1 also adjusts the second selected state quantity of the target space S.

[0098] The second selected state quantity is a state quantity different from the concentration of the target substance, and is a state quantity that is removed by air processing by the air handling unit 3. The second selected state quantity is a quantity that is difficult to adjust by the external air introduction machine 2. For example, the second selected state quantity is the PM concentration of the target space S. In the case where the building including the target space S is located near a trunk road, the outdoor PM concentration is sometimes higher than the indoor PM concentration. In this case, it is difficult to adjust the PM concentration by the external air introduction machine 2. Therefore, PM is selected as the second selected state quantity as a quantity that can only be adjusted by the air handling unit 3. In this case, the air handling unit 3 has a PM removal filter.

[0099] The air handling unit 3 is an air conditioner 4 with a purification function. In addition to the processing unit 6A capable of processing the target substance T, the air handling unit 3 also has an additional processing unit 6C capable of processing a substance M related to the second selected state quantity. In this embodiment, the substance M related to the second selected state quantity is PM. The additional processing unit 6C removes PM from the air. For example, the additional processing unit 6C has a PM removal filter.

[0100] The control unit 10 sets the second air volume W2 so that the second selected state quantity of the object space S satisfies the second reference. The second reference is preset. For example, the second reference represents the second selected state quantity at which a person can spend time comfortably in the object space S. In the present embodiment, the second reference is set to a range of PM concentrations at which a person can spend time comfortably in the object space S. An example of control performed by the control unit 10 is described below.

[0101] The control unit 10 determines whether the second selected state quantity of the target space S satisfies the second reference based on the sensor that detects the second selected state quantity. For example, when the second selected state quantity is the PM concentration, the control unit 10 determines whether the second selected state quantity of the target space S is less than the second reference value based on the concentration detection value of the PM concentration sensor set in the target space S. When the concentration detection value of the PM concentration sensor is greater than the second reference value, the control unit 10 sets the second air volume W2 so that the concentration detection value of the PM concentration sensor is close to the second reference value. In one example, the control unit 10 sets the second air volume W2 based on the difference between the concentration detection value of the PM concentration sensor and the second reference value. Through such control, when the concentration detection value of the PM concentration sensor is greater than the second reference value and the difference is greater, the second air volume W2 is greater. When the concentration detection value of the PM concentration sensor is close to the second reference value, the second air volume W2 gradually decreases and then converges to a certain air volume. In addition, the control unit 10 sets the first air volume W1 based on the second air volume W2 each time the second air volume W2 is set. Specifically, similarly to the second example of the first embodiment, the control unit 10 sets the first air volume W1 based on the required air volume WA and the second air volume W2.

[0102] <Another example> In the above example of the present embodiment, the control unit 10 sets the second air volume W2 so that the second selected state quantity of the target space S satisfies the second reference. Each time the control unit 10 sets the second air volume W2, it sets the first air volume W1 based on the second air volume W2.

[0103] In contrast, the control unit 10 may also set the first air volume W1 and the second air volume W2 based on the following relationship information. The relationship information is pre-stored in the storage unit 11. The relationship information includes: third derived information for deriving the second air volume W2 based on the second selected state quantity and fourth derived information for deriving the first air volume W1 based on the second air volume W2. For example, the third derived information is information that associates the second selected state quantity with the second air volume W2 in such a way that the second air volume W2 takes a larger value as the second selected state quantity is a larger value. The fourth derived information is configured so that the relationship between the first air volume W1 and the second air volume W2 satisfies the relationship shown in the first embodiment. The relationship shown in the first embodiment is a relationship in which the sum of the first air volume W1 and the intermediate air volume WX is the necessary air volume WA. As a result, the object space S is fully ventilated.

[0104] <Effect> The effects of this embodiment will be described. (1) The relationship information includes: third derived information for deriving the second air volume W2 based on the second selected state quantity and fourth derived information for deriving the first air volume W1 based on the second air volume W2. According to this structure, energy saving can be achieved by adjusting the air state of the target space S to adjust the target substance concentration (target state quantity) and make the second selected state quantity satisfy the second reference.

[0105] (2) The control unit 10 sets the second air volume W2 so that the second selected state quantity of the target space S satisfies the second reference, and then sets the first air volume W1 based on the second air volume W2. According to this structure, energy saving can be achieved while adjusting the air state of the target space S so that the target substance concentration approaches the target concentration and the second selected state quantity satisfies the second reference.

[0106] <Fourth embodiment> Reference Figure 5 , an air conditioning cooperation system 1 according to a fourth embodiment will be described. In the air conditioning cooperation system 1 of the present embodiment, the same reference numerals as those of the second embodiment are used to denote the same components as those of the second embodiment, and duplicate descriptions are omitted.

[0107] The air conditioning cooperative system 1 of this embodiment includes the second embodiment. The air conditioning cooperative system 1 of this embodiment is different from the second embodiment in the following point. In the second embodiment, the air handling machine 3 is an air conditioner 4 with a purification function. In contrast, in this embodiment, the air handling machine 3 includes a plurality of devices.

[0108] In one example, the air handling machine 3 includes an air purifier 5 and an air conditioner 4 . The air cleaner 5 includes a processing unit 6B. The air conditioner 4 includes an air conditioning unit 7 for adjusting the temperature of the target space S and a processing unit 6A.

[0109] In the case of such an air conditioning cooperative system 1 , the target substance T is conditioned by the outside air introduction device 2 , the air cleaner 5 , and the air conditioner 4 . The first air volume W1 includes the air volume of the outside air introduction device 2 .

[0110] The second air volume W2 includes the air volume of the air cleaner 5 and the air volume of the air conditioner 4 . The third air volume W3 is defined as the air volume processed by the processing unit 6B in the air cleaner 5 . The fourth air volume W4 is defined as an air volume that is processed by the air conditioning unit 7 and the processing unit 6A in the air conditioner 4 and is set based on the temperature of the target space S.

[0111] The air conditioning cooperation system 1 adjusts the concentration of a target substance in the target space S through cooperation of an outside air introduction device 2 , an air cleaner 5 as one of the air handling machines 3 , and an air conditioner 4 as the other of the air handling machines 3 .

[0112] The control unit 10 communicates with the control unit 2A of the outside air introduction device 2. The fan of the outside air introduction device 2 is controlled based on the command of the control unit 10, so that the air volume of the outside air introduction device 2 is adjusted to the commanded air volume.

[0113] The control unit 10 communicates with the control unit 4A of the air conditioner 4. The control unit 4A controls the fan of the air conditioner 4 based on the command of the control unit 10, thereby adjusting the air volume of the air conditioner 4 to the commanded air volume.

[0114] The control unit 10 communicates with the control unit 5A of the air cleaner 5. The control unit 5A controls the fan of the air cleaner 5 based on the command of the control unit 10, thereby adjusting the air volume of the air cleaner 5 to the commanded air volume.

[0115] The target substance T is, for example, a pathogen. The air-conditioning cooperative system 1 further adjusts a first selected state quantity of the target space S. The first selected state quantity is the carbon dioxide concentration of the target space S. The control unit 10 sets the first air volume W1 so that a first selected state quantity (for example, carbon dioxide concentration) of the target space S satisfies a first reference.

[0116] The control unit 10 sets the second air volume W2 based on the first air volume W1. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the necessary air volume WA and the first air volume W1. In one example, the control unit 10 derives the intermediate air volume WX as a value obtained by subtracting the first air volume W1 from the necessary air volume WA. The control unit 10 derives the second air volume W2 based on the intermediate air volume WX and the conversion value. In the present embodiment, the conversion value of the air conditioner 4 is equal to the conversion value of the air purifier 5. The second air volume W2 is the air volume that the air conditioner 4 and the air purifier 5 should handle.

[0117] The air conditioner 4 sets the fourth air volume W4 based on the indoor temperature TA and the set temperature. The set temperature is a target indoor temperature set by a user. The user is a user of the room or an air conditioner manager who manages indoor air conditioning.

[0118] The control unit 10 sets the third air volume W3 based on the second air volume W2 and the fourth air volume W4. Specifically, the control unit 10 obtains the fourth air volume W4 from the air conditioner 4. The control unit 10 outputs the value obtained by subtracting the fourth air volume W4 from the second air volume W2 as the third air volume W3.

[0119] Figure 61 is a diagram showing the relationship between the required air volume WA, the first air volume W1, the second air volume W2, the third air volume W3 and the fourth air volume W4. In this way, the control unit 10 adjusts the air volume of each of the external air introduction device 2, the air conditioner 4 and the air purifier 5 so that the sum of the first air volume W1, the third air volume W3 and the fourth air volume W4 reaches the required air volume WA, and issues a command for each device to operate at a specified air volume.

[0120] <Effect> The effects of this embodiment will be described. (1) In the present embodiment, the air handling unit 3 may include an air purifier 5 having a processing unit 6B and an air conditioner 4 having an air conditioning unit 7 for adjusting the temperature of the target space S and a processing unit 6A. The first selected state quantity is the carbon dioxide concentration of the target space S. The second air volume W2 includes the air volume of the air purifier 5 and the air volume of the air conditioner 4. The control unit 10 sets the first air volume W1 so that the first selected state quantity of the target space S satisfies the first reference, and sets the second air volume W2 based on the first air volume W1.

[0121] According to this configuration, when the carbon dioxide concentration is adjusted by the outside air introduction device 2, energy saving can be achieved while air conditioning the target space S so that the target substance concentration approaches the target concentration and the carbon dioxide concentration satisfies the reference.

[0122] (2) The control unit 10 sets the third air volume W3 based on the second air volume W2 and the fourth air volume W4. Here, the third air volume W3 is the air volume processed by the processing unit 6B in the air purifier 5. The fourth air volume W4 is the air volume processed by the air conditioning unit 7 and the processing unit 6A in the air conditioner 4 and set based on the temperature of the target space S.

[0123] According to this configuration, since the operation of the air cleaner 5 and the operation of the air conditioner 4 are coordinated with respect to the air volume, energy saving can be achieved compared to a case where such coordination is not performed.

[0124] <Fifth embodiment> Reference Figure 7 , an air conditioning cooperation system 1 according to a fifth embodiment will be described. In the air conditioning cooperation system 1 of the present embodiment, the same reference numerals as those of the first embodiment are given to the same components as those of the first embodiment, and duplicate descriptions are omitted.

[0125] The air conditioning cooperative system 1 of the present embodiment includes the first example of the first embodiment. The air conditioning cooperative system 1 of the present embodiment is different from the first example in the following respects. In the first example, the first air volume W1 is set by a user operation. In contrast, in the present embodiment, the first air volume W1 is set based on a prescribed rule.

[0126] The air conditioning cooperation system 1 adjusts the concentration of the target substance in the target space S by cooperation between the external air introduction device 2 and the air handling machine 3. The air handling machine 3 includes an air purifier 5. The air handling machine 3 does not include the air conditioner 4 or includes the air conditioner 4 in a stopped state. The target substance T is, for example, a pathogen. The air conditioning cooperation system 1 also adjusts the first selected state quantity of the target space S.

[0127] The first selected state quantity is a state quantity different from the concentration of the target substance, and is a state quantity that is adjusted by the introduction of external air by the external air introduction machine 2. The first selected state quantity is a quantity that is difficult to adjust by the air handling machine 3. In the present embodiment, the first selected state quantity is the temperature or humidity of the target space S. In the present embodiment, the air handling machine 3 does not include the air conditioner 4, or the air handling machine 3 is in a stopped state. Therefore, the temperature or humidity of the target space S is difficult to adjust by the air handling machine 3. Therefore, the temperature or humidity is selected as the first selected state quantity as a quantity that can be adjusted only by the external air introduction machine 2.

[0128] An example of the target space S that is not provided with the air conditioner 4 is an open dome space. In a dome space where an exhibition is held, since people are crowded, countermeasures against infection are required, and therefore, the concentration of the target substance (e.g., pathogen) in the target space S is managed. The temperature or humidity of the target space S is adjusted by introducing outside air.

[0129] The control unit 10 sets the first air volume W1 so that the first selected state quantity of the target space S satisfies the first reference. The control unit 10 has an air volume range set so that the first selected state quantity satisfies the first reference. The first reference is preset. For example, the first reference represents the first selected state quantity at which a person can spend time comfortably in the object space S. In the present embodiment, the first reference is set to a range of temperature or humidity at which a person can spend time comfortably in the object space S. An example of control performed by the control unit 10 is described below.

[0130] The control unit 10 determines whether the first selected state quantity of the object space S satisfies the first benchmark based on the sensor that detects the first selected state quantity. For example, when the first selected state quantity is temperature, the control unit 10 determines whether the first selected state quantity of the object space S is within the benchmark range of the first benchmark based on the temperature detection value of the temperature sensor provided in the object space S. When the temperature detection value of the temperature sensor is not a value within the benchmark range of the first benchmark, the control unit 10 sets the first air volume W1 so that the temperature detection value of the temperature sensor is close to the first benchmark value. The benchmark range is a range set around the first benchmark value and is a range that is regarded as satisfying the first benchmark, and is set in advance. Two examples are given below for this embodiment.

[0131] <First example> In the first example, the outside air introduction device 2 includes a temperature adjustment unit that adjusts the temperature of the outside air. The temperature of the outside air is adjusted by the temperature adjustment unit in the outside air introduction device 2. The temperature adjustment unit includes a heat exchanger of a refrigerant circuit.

[0132] When the temperature in the target space S is higher than the upper limit of the reference range of the first reference value, the control unit 10 controls the refrigerant circuit and sets the first air volume W1 so that the temperature in the target space S approaches the first reference value and the temperature of the outside air is lower than the first reference value. The control unit 10 sets the first air volume W1 based on the difference between the temperature in the target space S and the first reference value. Through such control, when the temperature in the target space S is higher than the first reference value and the difference is larger, the first air volume W1 is larger. When the temperature in the target space S approaches the first reference value, the first air volume W1 gradually decreases and then converges to a certain air volume.

[0133] When the temperature in the target space S is lower than the lower limit of the reference range of the first reference value, the control unit 10 controls the refrigerant circuit and sets the first air volume W1 so that the temperature in the target space S approaches the first reference value and the temperature of the outside air is higher than the first reference value. The control unit 10 sets the first air volume W1 based on the difference between the temperature in the target space S and the first reference value. Through such control, when the temperature in the target space S is lower than the first reference value and the difference is larger, the first air volume W1 is larger. When the temperature in the target space S approaches the first reference value, the first air volume W1 gradually decreases and then converges to a certain air volume.

[0134] Each time the control unit 10 sets the first air volume W1, the control unit 10 sets the second air volume W2 based on the first air volume W1. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the required air volume WA and the first air volume W1.

[0135] The control when the first selected state quantity is humidity is the same as the control when the first selected state quantity is temperature. <Second example> In the second example, the external air introduction device 2 does not have the function of adjusting the temperature of the external air and directly introduces the external air. The control unit 10 sets the first air volume W1 based on the difference between the temperature detection value of the temperature sensor and the first reference value. In addition, the control unit 10 performs feedback control on the first air volume W1 so that the temperature of the object space S meets the first reference only when the temperature of the object space S meets the first reference by introducing external air (hereinafter referred to as the condition that the external air can be introduced). When the temperature of the object space S cannot meet the first reference by introducing external air, the control unit 10 sets the first air volume W1 to the minimum amount. The control unit 10 determines whether the condition that the external air can be introduced is established by whether the first reference value exists between the temperature of the external air and the temperature in the object space S. When the first reference value exists between the temperature of the external air and the temperature in the object space S, the control unit 10 determines that the condition that the external air can be introduced is established.

[0136] According to the feedback control of the control unit 10 when the condition for introducing external air is met, the greater the difference between the temperature detection value of the temperature sensor and the first reference value, the greater the first air volume W1. When the temperature detection value of the temperature sensor is close to the first reference value, the first air volume W1 gradually decreases and then converges to a certain air volume. In addition, the control unit 10 sets the second air volume W2 based on the first air volume W1 each time the first air volume W1 is set. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the necessary air volume WA and the first air volume W1.

[0137] The control when the first selected state variable is humidity is the same as the control when the first selected state variable is temperature. <Effect> The effects of this embodiment will be described.

[0138] The control unit 10 sets the first air volume W1 so that the first selected state quantity of the target space S satisfies the first reference, and sets the second air volume W2 based on the first air volume W1. Here, the first selected state quantity is the temperature of the target space S. The first selected state quantity is the humidity of the target space S.

[0139] According to this configuration, when the temperature or humidity of the target space S is adjusted by the outside air introduction device 2, the following effects are achieved: energy saving can be achieved while air conditioning the target space S so that the target substance concentration approaches the target concentration and the temperature or humidity of the target space S meets the reference by introducing outside air.

[0140] <Sixth embodiment> Reference Figure 8, an air conditioning cooperation system 1 according to a sixth embodiment will be described. In the air conditioning cooperation system 1 according to the present embodiment, the same reference numerals as those in the first embodiment are used to denote the same components as those in the first embodiment, and duplicate descriptions are omitted.

[0141] The air conditioning cooperation system 1 of this embodiment includes the first example or the second example of the first embodiment. The air conditioning cooperation system 1 of this embodiment is different from the first example or the second example in the following respects. In the first example or the second example, the first air volume W1 or the second air volume W2 is set based on the user's operation. In contrast, in this embodiment, the first air volume W1 or the second air volume W2 is set based on a prescribed rule.

[0142] The air conditioning cooperation system 1 adjusts the concentration of a target substance in a target space S by cooperation between an outside air introduction device 2 and an air handling machine 3. The target substance T is, for example, a pathogen. The air handling machine 3 includes an air conditioning unit 7 that adjusts the temperature of the target space S and a processing unit 6A.

[0143] The control unit 10 preferentially sets one of the first air volume W1 and the second air volume W2 based on the determination result of whether the first energy consumption is greater than the second energy consumption. The first energy consumption is defined as the sum of the following energy consumption (1) and energy consumption (2) when a unit amount of outside air is introduced into the target space S. (1) is the energy consumption of the outside air introduction device 2 required for the introduction of outside air. (2) is the energy consumption of the air handling device 3 required to restore the target space S into which the unit amount of outside air has been introduced to the temperature before the introduction of outside air.

[0144] The second energy consumption is defined as the energy consumption of the air handling machine 3 required to process a unit amount of air when a unit amount of space of the processing target space S is processed. By determining whether the first energy consumption is greater than the second energy consumption, it is possible to determine whether the introduction of outside air is advantageous to the energy consumption of the air-conditioning cooperative system 1. Therefore, the energy consumption can be suppressed by control based on the determination result.

[0145] The control unit 10 determines whether the first energy consumption is greater than the second energy consumption. An example of a method of determining whether the first energy consumption is greater than the second energy consumption is given. For example, the control unit 10 can determine whether the first energy consumption is greater than the second energy consumption based on the temperature difference between the outdoor temperature TB and the indoor temperature TA.

[0146] When the first energy consumption is greater than the second energy consumption, the control unit 10 sets the first air volume W1 so that the first energy consumption becomes less than the magnitude at the time of determination. Specifically, the control unit 10 sets the first air volume W1 to be less than the first air volume W1 at the time of determination. In one example, the control unit 10 sets the value obtained by subtracting the prescribed air volume from the first air volume W1 at the time of determination as the first air volume W1. In another example, the control unit 10 sets the value obtained by multiplying the first air volume W1 at the time of determination by a coefficient less than 1 as the first air volume W1.

[0147] The control unit 10 sets the second air volume W2 based on the first air volume W1. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the required air volume WA and the first air volume W1.

[0148] When the first energy consumption is less than the second energy consumption, the control unit 10 sets the second air volume W2 so that the second energy consumption becomes less than the magnitude at the time of determination. Specifically, the control unit 10 sets the second air volume W2 to be less than the second air volume W2 at the time of determination. In one example, the control unit 10 sets the value obtained by subtracting the specified air volume from the second air volume W2 at the time of determination as the second air volume W2. In another example, the control unit 10 sets the value obtained by multiplying the second air volume W2 at the time of determination by a coefficient less than 1 as the second air volume W2.

[0149] The control unit 10 sets the first air volume W1 based on the second air volume W2. Specifically, similarly to the second example of the first embodiment, the control unit 10 sets the first air volume W1 based on the required air volume WA and the second air volume W2.

[0150] <Effect> The effects of this embodiment will be described. The control unit 10 determines whether the first energy consumption is greater than the second energy consumption. When the first energy consumption is greater than the second energy consumption, the control unit 10 sets the first air volume W1 so that the first energy consumption becomes less than the value at the time of determination, and sets the second air volume W2 based on the first air volume W1. When the first energy consumption is less than the second energy consumption, the control unit 10 sets the second air volume W2 so that the second energy consumption becomes less than the value at the time of determination, and sets the first air volume W1 based on the second air volume W2.

[0151] According to this structure, when the air handling unit 3 performs air conditioning on the target space S, the air volume is set so that the energy of the device with the larger energy consumption in the comparison between the first energy consumption and the second energy consumption is less than the energy at the time of judgment. Thus, the sum of the energy consumption of the external air introduction device 2 and the energy consumption of the air handling unit 3, that is, the total energy consumption, can be reduced.

[0152] <Seventh embodiment> Reference Fig. 9 , an air conditioning cooperation system 1 according to a seventh embodiment will be described. In the air conditioning cooperation system 1 of the present embodiment, the same reference numerals as those of the sixth embodiment are given to the same components as those of the sixth embodiment, and duplicate descriptions are omitted.

[0153] The air conditioning cooperative system 1 of this embodiment is different from the sixth embodiment in the following respects: In the sixth embodiment, the first air volume W1 or the second air volume W2 is set based on the consumed energy. In contrast, in this embodiment, the first air volume W1 or the second air volume W2 is set based on the consumed energy and the first selected state quantity.

[0154] The air conditioning cooperative system 1 adjusts the concentration of a target substance in a target space S by cooperation between an outside air introduction device 2 and an air handling unit 3. The target substance T is, for example, a pathogen. The first selected state quantity is the carbon dioxide concentration. The air handling unit 3 includes a processing unit 6A and an air conditioning unit 7 for adjusting the temperature of the target space S.

[0155] The control unit 10 preferentially sets one of the first air volume W1 and the second air volume W2 based on the determination result of whether the first energy consumption is greater than the second energy consumption. The control unit 10 determines whether the first energy consumption is greater than the second energy consumption.

[0156] The control unit 10 has a predetermined air volume set in advance as the air volume of the outside air introducing device 2 required for the first selected state quantity in the target space S to satisfy the first reference. When the first energy consumption is greater than the second energy consumption, the control unit 10 sets the first air volume W1 to an air volume greater than or equal to a predetermined air volume so that the first selected state quantity of the target space S satisfies the first reference.

[0157] When the first energy consumption is greater than the second energy consumption, the control unit 10 sets the first air volume W1 so that the first energy consumption becomes less than the magnitude at the time of determination. Specifically, the control unit 10 sets the first air volume W1 to be less than the first air volume W1 at the time of determination. In one example, the control unit 10 sets the value obtained by subtracting the prescribed air volume from the first air volume W1 at the time of determination as the first air volume W1. In another example, the control unit 10 sets the value obtained by multiplying the first air volume W1 at the time of determination by a coefficient less than 1 as the first air volume W1.

[0158] Furthermore, the control unit 10 determines whether the first air volume W1 is equal to or greater than a predetermined air volume, and sets the predetermined air volume as the first air volume W1 when the first air volume W1 is less than the predetermined air volume. The control unit 10 sets the second air volume W2 based on the first air volume W1. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the required air volume WA and the first air volume W1.

[0159] When the first energy consumption is less than the second energy consumption, the control unit 10 sets the second air volume W2 so that the second energy consumption becomes less than the magnitude at the time of determination. Specifically, the control unit 10 sets the second air volume W2 to be less than the second air volume W2 at the time of determination. In one example, the control unit 10 sets the value obtained by subtracting the specified air volume from the second air volume W2 at the time of determination as the second air volume W2. In another example, the control unit 10 sets the value obtained by multiplying the second air volume W2 at the time of determination by a coefficient less than 1 as the second air volume W2.

[0160] The control unit 10 sets the first air volume W1 based on the second air volume W2. Specifically, similarly to the second example of the first embodiment, the control unit 10 sets the first air volume W1 based on the required air volume WA and the second air volume W2.

[0161] <Effect> The effects of this embodiment will be described. When the first energy consumption is greater than the second energy consumption, the control unit 10 sets the first air volume W1 to a predetermined air volume or more so that the first selected state quantity of the target space S satisfies the first reference, and sets the second air volume W2 based on the first air volume W1.

[0162] There is a situation where the first selected state quantity that can only be adjusted by the external air introduction device 2 needs to be adjusted, and the introduction of external air by the external air introduction device 2 is not conducive to energy consumption in the air conditioning of the target space S. According to the above structure, in such a situation, the first air volume W1 of the external air introduction device 2 is set to an air volume greater than the specified air volume as described above. As a result, energy saving can be achieved while air conditioning the target space S so that the target substance concentration approaches the target concentration and the first selected state quantity satisfies the first benchmark.

[0163] <Eighth Embodiment> Reference Fig.10 , an air conditioning cooperation system 1 according to an eighth embodiment will be described. In the air conditioning cooperation system 1 of the present embodiment, the same reference numerals as those of the first embodiment are given to the same components as those of the first embodiment, and duplicate descriptions are omitted.

[0164] The air conditioning cooperative system 1 of this embodiment is different from the sixth embodiment in the following respects: In the sixth embodiment, the first air volume W1 or the second air volume W2 is set based on the consumed energy. In contrast, in this embodiment, the first air volume W1 or the second air volume W2 is set based on the consumed energy and the second selected state quantity.

[0165] The air conditioning cooperation system 1 adjusts the concentration of the target substance in the target space S by cooperation between the external air introduction device 2 and the air handling machine 3. The target substance T is, for example, a pathogen. The second selected state quantity is the PM concentration. The air handling machine 3 has a processing unit 6A and an air conditioning unit 7 for adjusting the temperature of the target space S. The air handling machine 3 also has an additional processing unit 6C capable of processing a substance M related to the second selected state quantity.

[0166] The control unit 10 preferentially sets one of the first air volume W1 and the second air volume W2 based on the determination result of whether the first energy consumption is greater than the second energy consumption. The control unit 10 determines whether the first energy consumption is greater than the second energy consumption.

[0167] The control unit 10 has a predetermined air volume set in advance as the air volume of the air handling machine 3 required for the second selected state quantity in the target space S to satisfy the second reference. When the first energy consumption is greater than the second energy consumption, the control unit 10 sets the first air volume W1 so that the first energy consumption becomes less than the magnitude at the time of determination. Specifically, the control unit 10 sets the first air volume W1 to be less than the first air volume W1 at the time of determination. In one example, the control unit 10 sets the value obtained by subtracting the prescribed air volume from the first air volume W1 at the time of determination as the first air volume W1. In another example, the control unit 10 sets the value obtained by multiplying the first air volume W1 at the time of determination by a coefficient less than 1 as the first air volume W1.

[0168] The control unit 10 sets the second air volume W2 based on the first air volume W1. Specifically, similarly to the first example of the first embodiment, the control unit 10 sets the second air volume W2 based on the required air volume WA and the first air volume W1.

[0169] When the first energy consumption is less than or equal to the second energy consumption, the control unit 10 sets the second air volume W2 to an air volume greater than or equal to a predetermined air volume so that the second selected state quantity of the target space S satisfies the second reference.

[0170] When the first energy consumption is less than the second energy consumption, the control unit 10 sets the second air volume W2 so that the second energy consumption becomes less than the magnitude at the time of determination. Specifically, the control unit 10 sets the second air volume W2 to be less than the second air volume W2 at the time of determination. In one example, the control unit 10 sets the value obtained by subtracting the specified air volume from the second air volume W2 at the time of determination as the second air volume W2. In another example, the control unit 10 sets the value obtained by multiplying the second air volume W2 at the time of determination by a coefficient less than 1 as the second air volume W2.

[0171] Furthermore, the control unit 10 determines whether the second air volume W2 is equal to or greater than a predetermined air volume, and sets the predetermined air volume as the second air volume W2 when the second air volume W2 is less than the predetermined air volume. The control unit 10 sets the first air volume W1 based on the second air volume W2. Specifically, similarly to the second example of the first embodiment, the control unit 10 sets the first air volume W1 based on the required air volume WA and the second air volume W2.

[0172] <Effect> The effects of this embodiment will be described. When the first energy consumption is less than or equal to the second energy consumption, the control unit 10 sets the second air volume W2 to a predetermined air volume or more so that the second selected state quantity of the target space S satisfies the second reference, and sets the first air volume W1 based on the second air volume W2.

[0173] There is a situation where the second selected state quantity that can only be formed by the air handling unit 3 needs to be adjusted, and it is disadvantageous to consume energy to operate the air handling unit 3 in the air conditioning of the target space S. According to the above configuration, in such a situation, the second air volume W2 of the air handling unit 3 is set to an air volume greater than the prescribed air volume as described above. Thus, energy saving can be achieved while air conditioning the target space S so that the target substance concentration approaches the target concentration and the second selected state quantity satisfies the second reference.

[0174] (Variation Example) In addition to the above-mentioned embodiments, the air conditioning cooperative system 1 of the present disclosure may also be provided as, for example, the following modified examples and an embodiment composed of a combination of at least two modified examples that do not contradict each other.

[0175] In this embodiment, a control device 20 having the following structure is disclosed to solve the technical problem (see Figure 1 , Figure 3 to Figure 5 , Figure 7 to Figure 10). The control device 20 controls the equipment for adjusting the air state of the target space S. The equipment includes: an external air introduction machine 2, which adjusts the target substance concentration in the target space S by introducing external air into the target space S; and an air handling machine 3, which has a processing unit 6, which adjusts the target substance concentration by processing the air of the target space S. The control device 20 sets the air volume of the first air volume W1 and the second air volume W2 based on the necessary air volume WA and the air volume of one of the first air volume W1 of the external air introduction machine 2 and the second air volume W2 of the air handling machine 3. The first air volume W1 is the air volume introduced into the target space S by the external air introduction machine 2. The second air volume W2 is the air volume processed by the air handling machine 3.

[0176] According to this configuration, when the target substance concentration is brought close to the target concentration, energy saving can be achieved compared to a case where the outside air introduction device 2 and the air handling device 3 are operated independently. In the present embodiment, a control device 20 of the following structure is disclosed to solve the technical problem. The control device 20 is a control device 20 that controls a device for adjusting the air state of the target space S. The device includes: an external air introduction device 2 that adjusts the target state quantity of the target space S by introducing external air into the target space S; and an air handling machine 3 that has a processing unit 6 that adjusts the target state quantity by processing the air of the target space S. The control device 20 includes a control unit 10 and a storage unit 11, and the control unit 10 sets the first air volume W1 of the external air introduction device 2 and the second air volume W2 of the air handling machine 3. The storage unit 11 stores relationship information indicating the relationship between the selected state quantity, the first air volume W1, and the second air volume W2, wherein the selected state quantity is the state quantity of the target space S different from the target state quantity and changes according to at least one of the external air introduction device 2 and the air handling machine 3. The control unit 10 sets the first air volume W1 and the second air volume W2 based on the selected state quantity and according to the relationship information. According to this configuration, when the target state quantity in the regulation target space S is adjusted, energy saving can be achieved compared to a case where the outside air introduction device 2 and the air handling device 3 are operated independently.

[0177] · The relationship information in the second embodiment is explained. The relationship information associates the selected state quantity, the first air volume W1, and the second air volume W2. The relationship information can also be constructed as follows. In <Third Example-2> of the second embodiment, the relationship information includes third relationship information indicating the relationship between the first selected state quantity, the first air volume W1, and the second air volume W2. In <Third Example-2> of the second embodiment, in the relationship information, the relationship between the first selected state quantity, the first air volume W1, and the second air volume W2 is set with the purpose of the first selected state quantity of the object space S satisfying the first benchmark. In contrast, in this example, it is not a condition that the first selected state quantity of the object space S satisfies the first benchmark. In this example, the relationship between the first selected state quantity, the first air volume W1, and the second air volume W2 is set based on a specified purpose. The specified purpose can include comfort for business activities, comfort for relaxation, and optimal air conditioning for emphasizing infection prevention. According to this structure, the first air volume W1 and the second air volume W2 can be derived based on the first selected state quantity and the third relationship information.

[0178] ·The relationship information in the third embodiment is explained. The relationship information associates the selected state quantity, the first air volume W1, and the second air volume W2. In the third embodiment, the relationship information can also be constructed as follows. In the third embodiment, the relationship information includes fourth relationship information indicating the relationship between the second selected state quantity, the first air volume W1, and the second air volume W2. In this example, the relationship between the second selected state quantity, the first air volume W1, and the second air volume W2 is set based on a specified purpose. The specified purpose can include comfort for business activities, comfort for relaxation, optimal air conditioning for focusing on infection prevention, etc. According to this structure, the first air volume W1 and the second air volume W2 can be derived based on the second selected state quantity and the fourth relationship information.

[0179] The relationship information shown in the first embodiment to the second embodiment may be in any form. In the first embodiment, the relationship between the first air volume W1 and the second air volume W2 may be constructed in a table form, a mathematical formula, a learning model or a chart. In the second embodiment or the third embodiment, the relationship between the selected state quantity, the first air volume W1 and the second air volume W2 may be constructed in a table form, a mathematical formula, a learning model or a chart.

[0180] This specification discloses the following technologies. [Note 1] An air conditioning cooperative system, which adjusts the air state of a target space. The air conditioning cooperative system includes: an external air introduction machine, which introduces external air into the target space to adjust the target substance concentration in the target space; an air handling machine, which has a processing unit, which adjusts the target substance concentration by processing the air in the target space; and a control unit, which sets a first air volume of the external air introduction machine and a second air volume of the air handling machine. The control unit sets the air volume of the first air volume and the second air volume based on the necessary air volume and the air volume of one of the first air volume and the second air volume, and the necessary air volume is the air volume required to guide the target substance concentration to a target concentration. The first air volume is the air volume introduced into the target space by the external air introduction machine. The second air volume is the air volume processed by the air handling machine.

[0181] [Note 2] The air conditioning cooperation system of Supplement 2 is the air conditioning cooperation system described in Supplement 1. A state quantity that is different from the concentration of the target substance and is adjusted by the introduction of external air by the external air introduction device is defined as a first selected state quantity. In the air conditioning cooperation system, the control unit sets the first air volume so that the first selected state quantity of the target space satisfies a first benchmark, and sets the second air volume based on the first air volume.

[0182] [Note 3] The air conditioning cooperation system of Supplement 3 is based on the air conditioning cooperation system of Supplement 2, wherein the control unit has an air volume range set in such a way that the first selected state quantity satisfies a first benchmark. In addition, the control unit sets the minimum amount of the air volume range set for the first selected state quantity of the target space as the first air volume.

[0183] [Note 4] The air conditioning cooperative system of Supplement 4 is the air conditioning cooperative system described in Supplement 1. A state quantity that is different from the concentration of the target substance and is removed by air processing of the air handling unit is defined as a second selected state quantity. The control unit of the air conditioning cooperative system sets the second air volume so that the second selected state quantity of the target space satisfies a second reference, and sets the first air volume based on the second air volume.

[0184] [Note 5] The air conditioning cooperation system of Supplement 5 is based on the air conditioning cooperation system described in Supplement 2, and the first selected state quantity is the carbon dioxide concentration of the target space.

[0185] [Note 6] The air conditioning cooperation system of Supplement 6 is based on the air conditioning cooperation system of Supplement 2, wherein the air conditioning processing machine includes an air purifier and an air conditioner, the air purifier has the processing unit, and the air conditioner has an air conditioning unit for adjusting the temperature of the target space and the processing unit. The second air volume includes the air volume of the air purifier and the air volume of the air conditioner. The first selected state quantity is the carbon dioxide concentration of the target space.

[0186] [Note 7] The air conditioning cooperation system of Supplement 7 is the air conditioning cooperation system described in Supplement 6. The air volume processed by the processing unit in the air purifier is defined as the third air volume. The air volume processed by the air conditioning unit and the processing unit in the air conditioner and set based on the temperature of the target space is defined as the fourth air volume. In addition, in the air conditioning cooperation system, the control unit sets the third air volume based on the second air volume and the fourth air volume.

[0187] [Note 8] The air conditioning cooperation system of Supplement 8 is based on the air conditioning cooperation system described in Supplement 2, and the first selected state quantity is the temperature or humidity of the target space.

[0188] [Note 9] The air conditioning cooperation system of Supplement 9 is the air conditioning cooperation system described in Supplement 1. In the case of introducing a unit amount of external air into the target space, the sum of the energy consumption of the external air introduction device required for introducing the external air and the energy consumption of the air handling device required to restore the target space after the unit amount of the external air is introduced to the temperature before the external air is introduced is defined as the first energy consumption. In addition, in the case of processing a unit amount of air in the target space, the energy consumption of the air handling device required for processing the unit amount of air is defined as the second energy consumption. In the air conditioning cooperative system, the air handling device has the processing unit and an air conditioning unit that adjusts the temperature of the target space. The control unit determines whether the first energy consumption is greater than the second energy consumption. In the case where the first energy consumption is greater than the second energy consumption, the control unit sets the first air volume so that the first energy consumption is less than the size at the time of determination, and sets the second air volume based on the first air volume. In the case where the first energy consumption is less than the second energy consumption, the control unit sets the second air volume so that the second energy consumption is less than the size at the time of determination, and sets the first air volume based on the second air volume.

[0189] [Note 10] The air conditioning cooperation system of Supplement 10 is the air conditioning cooperation system described in Supplement 1. In the case of introducing a unit amount of external air into the target space, the sum of the energy consumption of the external air introduction machine required for the introduction of the external air and the energy consumption of the air handling machine required to restore the target space after the introduction of the unit amount of the external air to the temperature before the introduction of the external air is defined as the first energy consumption. In addition, in the case of processing a unit amount of air in the target space, the energy consumption of the air handling machine required for processing the unit amount of air is defined as the second energy consumption. In addition, the state quantity that is different from the concentration of the target substance and is adjusted by the introduction of the external air by the external air introduction machine is defined as the first selected state quantity. In addition, in the air conditioning cooperative system, the control unit has a predetermined prescribed air volume as the air volume of the external air introduction machine required to make the first selected state quantity in the target space meet the first benchmark. The air handling machine has the processing unit and the air conditioning unit that adjusts the temperature of the target space. In the case where the first energy consumption is greater than the second energy consumption, the control unit sets the first air volume to an air volume greater than the prescribed air volume so that the first selected state quantity of the target space meets the first benchmark, and sets the second air volume based on the first air volume.

[0190] [Note 11] The air conditioning cooperation system of Supplement 11 is the air conditioning cooperation system described in Supplement 1. In the case of introducing a unit amount of external air into the target space, the sum of the energy consumption of the external air introduction machine required for the introduction of the external air and the energy consumption of the air handling machine required to restore the target space after the introduction of the unit amount of the external air to the temperature before the introduction of the external air is defined as the first energy consumption. In addition, in the case of processing a unit amount of air in the target space, the energy consumption of the air handling machine required to process the unit amount of air is defined as the second energy consumption. In addition, a state quantity that is different from the concentration of the target substance and can be adjusted by air processing of the air handling machine is defined as a second selected state quantity. In the air conditioning cooperation system, the control unit has a predetermined air volume as the air volume of the air handling machine required to make the second selected state quantity in the target space meet the second benchmark. The air handling machine has the processing unit and an air conditioning unit that adjusts the temperature of the target space. When the first energy consumption is less than or equal to the second energy consumption, the control unit sets the second air volume to a volume greater than or equal to the prescribed air volume so that the second selected state quantity of the target space satisfies a second reference, and sets the first air volume based on the second air volume.

[0191] [Note 12] The air conditioning cooperation system of Note 12 is based on the air conditioning cooperation system described in any one of Notes 1 to 11, and the target substance concentration is the pathogen concentration, pollen concentration, PM concentration, dust concentration or harmful chemical substance concentration in the target space.

[0192] [Note 13] The control device of Appendix 13 is a control device that controls a device for adjusting the air state of the target space. The device includes: an external air introduction machine, which adjusts the target substance concentration in the target space by introducing external air into the target space; and an air handling machine, which has a processing unit, which adjusts the target substance concentration by processing the air in the target space. The control device sets the air volume of the first air volume and the second air volume based on the necessary air volume and the air volume of one of the first air volume of the external air introduction machine and the second air volume of the air handling machine, and the necessary air volume is the air volume required to guide the target substance concentration to the target concentration. The first air volume is the air volume introduced into the target space by the external air introduction machine. The second air volume is the air volume processed by the air handling machine.

[0193] As mentioned above, although embodiment of the air conditioning cooperation system 1 was described, it should be understood that various changes in form and details can be made without departing from the gist and scope of the air conditioning cooperation system 1 described in the claims.

Claims

1. An air conditioning cooperative system (1), wherein the air conditioning cooperative system adjusts the air condition of a target space (S), characterized in that: include: an external air introduction device (2) for adjusting the target state quantity of the target space (S) by introducing external air into the target space (S); An air handling machine (3), the air handling machine having a processing unit, the processing unit adjusting the target state quantity by processing the air of the target space (S); A control unit (10) configured to set a first air volume (W1) of the external air introduction device (2) and a second air volume (W2) of the air handling device (3); as well as a storage unit (11) for storing relationship information indicating the relationship between a selected state quantity, the first air volume (W1), and the second air volume (W2), wherein the selected state quantity is a state quantity of the target space (S) different from the target state quantity and changes according to at least one of the external air introduction device (2) and the air handling unit (3); The control unit (10) sets the first air volume (W1) and the second air volume (W2) according to the relationship information based on the selected state quantity, The first air volume (W1) is the air volume introduced into the target space (S) by the external air introduction device (2). The second air volume (W2) is the air volume processed by the air handling unit (3).

2. The air conditioning cooperative system according to claim 1, characterized in that: As the selected state quantity, there is a first selected state quantity which changes according to the external air introduction device (2), The relationship information includes: first derived information for deriving the first air volume (W1) based on the first selected state quantity; and second derived information for deriving the second air volume (W2) based on the first air volume (W1).

3. The air conditioning cooperative system according to claim 2, characterized in that: The control unit (10) has an air volume range set so that the first selected state quantity satisfies a first reference, The control unit (10) sets the minimum amount of the air volume range set for the first selected state amount of the target space (S) as the first air volume (W1).

4. The air conditioning cooperative system according to claim 3, characterized in that: The first selected state quantity is the carbon dioxide concentration, temperature or humidity of the target space (S).

5. The air conditioning cooperative system according to claim 2, characterized in that: The air handling machine (3) comprises: an air purifier (5) having the processing unit (6B); and an air conditioner (4), the air conditioner having an air conditioning unit (7) for adjusting the temperature of the target space (S) and the processing unit (6A), The second air volume (W2) includes the air volume of the air purifier (5) and the air volume of the air conditioner (4).

6. The air conditioning cooperative system according to claim 1, characterized in that: As the selected state quantity, there is a second selected state quantity which is removed by air processing by the air handling unit (3), The relationship information includes: third derived information for deriving the second air volume (W2) based on the second selected state quantity; and fourth derived information for deriving the first air volume (W1) based on the second air volume (W2).

7. The air conditioning cooperative system according to claim 1, characterized in that: As the selected state quantity, there is a first selected state quantity which changes according to the external air introduction device (2), The relationship information includes third relationship information indicating a relationship among the first selected state quantity, the first air volume (W1), and the second air volume (W2).

8. The air conditioning cooperative system according to claim 1, characterized in that: As the selected state quantity, there is a second selected state quantity which is removed by air processing by the air handling unit (3), The relationship information includes fourth relationship information indicating a relationship among the second selected state quantity, the first air volume (W1), and the second air volume (W2).

9. The air conditioning cooperative system according to any one of claims 1 to 8, characterized in that: The object state quantity is a pathogen concentration, a pollen concentration, a PM concentration, a dust concentration, or a harmful chemical substance concentration in the object space (S).

10. A control device (20) for controlling a device for regulating the air condition of a target space (S), characterized in that: The device comprises: an external air introduction device (2), which adjusts the object state quantity of the object space (S) by introducing external air into the object space (S); and an air handling machine (3), which has a processing unit, which adjusts the object state quantity by processing the air of the object space (S). The control device comprises: a control unit (10) for setting a first air volume (W1) of the external air introduction device (2) and a second air volume (W2) of the air handling device (3); and a storage unit (11) for storing relationship information indicating the relationship between a selected state quantity, the first air volume (W1), and the second air volume (W2), wherein the selected state quantity is a state quantity of the target space (S) different from the target state quantity and changes according to at least one of the external air introduction device (2) and the air handling unit (3); The control unit (10) sets the first air volume (W1) and the second air volume (W2) according to the relationship information based on the selected state quantity, The first air volume (W1) is the air volume introduced into the target space (S) by the external air introduction device (2). The second air volume (W2) is the air volume processed by the air handling unit (3).

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