Satisfaction degree calculation device, satisfaction degree calculation method, and satisfaction degree calculation program

Abstract

A satisfaction degree calculation device (10) calculates a satisfaction degree with respect to air quality representing an air environment of a space. The specific enthalpy calculation unit (110) acquires the temperature and humidity in the space and calculates the specific enthalpy in the space. An air quality satisfaction degree calculation unit (120) acquires the carbon dioxide concentration in the space, determines constants for which values differ in accordance with the carbon dioxide concentration, and uses the specific enthalpy and the constants to calculate the satisfaction degree with respect to the air quality as the air quality satisfaction degree (31). An air quality satisfaction degree calculation unit (120) calculates, as an air quality satisfaction degree (31), a value obtained by adding a second constant to a value obtained by multiplying the comparison enthalpy by the first constant.

Description

Technical Field

[0001] The present disclosure relates to a satisfaction calculation device, a satisfaction calculation method and a satisfaction calculation program, and more particularly to a satisfaction calculation device, a satisfaction calculation method and a satisfaction calculation program for calculating the satisfaction level of an air quality environment in a space. Background Art

[0002] In recent years, a method has been proposed for calculating user satisfaction related to air quality in a device such as an air conditioner or a ventilator that controls the environment of a building.

[0003] Patent Document 1 discloses a method of calculating a comfort index based on a weighted value of a discomfort index determined based on temperature and humidity and a carbon dioxide concentration.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2011-089682 Summary of the invention

[0007] Problems to be solved by the invention

[0008] In Patent Document 1, the comfort level is calculated based on the discomfort index determined based on temperature and humidity and the weighted value of carbon dioxide concentration, but there is no qualitative information to evaluate how satisfied the users of the space are with the air quality of the space. Therefore, how to quantitatively evaluate qualitative information such as satisfaction with air quality remains a problem.

[0009] The present disclosure aims to calculate / evaluate qualitative information such as user satisfaction with the air environment of a space as a quantitative index.

[0010] Means for solving problems

[0011] The satisfaction calculation device disclosed in the present invention calculates the satisfaction with the air quality of the air environment representing a space, wherein the satisfaction calculation device comprises: a specific enthalpy calculation unit, which obtains the temperature and humidity in the space and calculates the specific enthalpy in the space; and an air quality satisfaction calculation unit, which obtains the carbon dioxide concentration in the space, determines a constant that takes different values ​​according to the carbon dioxide concentration, and uses the specific enthalpy and the constant to calculate the satisfaction with the air quality as the air quality satisfaction.

[0012] Effects of the Invention

[0013] In the satisfaction calculation device disclosed in the present invention, the air quality satisfaction calculation unit determines a constant according to the carbon dioxide concentration in the space, and uses the specific enthalpy in the space and the constant to calculate the satisfaction with the air quality as the air quality satisfaction. Thus, according to the satisfaction calculation device disclosed in the present invention, it is possible to calculate qualitative information such as the satisfaction with the air quality as a quantitative indicator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a diagram showing a configuration example of a satisfaction degree calculation system according to the first embodiment.

[0015] Figure 2 This is a diagram showing a configuration example of a satisfaction calculation device according to the first embodiment.

[0016] Figure 3 This is a flowchart showing an example of the operation of the satisfaction calculation device according to the first embodiment.

[0017] Figure 4 This is a diagram showing a configuration example of a satisfaction calculation device according to a modified example of the first embodiment.

[0018] Figure 5 This is a diagram showing a configuration example of a satisfaction calculation system according to the second embodiment.

[0019] Figure 6 This is a diagram showing a configuration example of a satisfaction calculation device according to the second embodiment.

[0020] Figure 7 This is a flowchart showing an example of the operation of the satisfaction calculation device according to the second embodiment.

[0021] Figure 8 This is a flowchart showing an operation example of a process of accumulating control information and power consumption information in a storage unit according to the second embodiment.

[0022] Fig. 9 This is a diagram showing a configuration example of a satisfaction degree calculation system according to the third embodiment.

[0023] Fig.10 This is a diagram showing a configuration example of a satisfaction calculation device according to a third embodiment.

[0024] Fig.11 This is a flowchart showing an example of the operation of the satisfaction calculation device according to the third embodiment. DETAILED DESCRIPTION

[0025] Implementation Method 1

[0026] ***Description of the structure***

[0027] Figure 11 is a diagram showing a configuration example of a satisfaction degree calculation system 500 according to the present embodiment.

[0028] The satisfaction calculation system 500 of the present embodiment includes a satisfaction calculation device 10, a thermometer 20, a hygrometer 30, and a CO2 meter 40. Each of the thermometer 20, the hygrometer 30, and the CO2 meter 40 may be referred to as a measurement sensor.

[0029] The satisfaction calculating device 10, the thermometer 20, the hygrometer 30 and the CO2 meter 40 of the satisfaction calculating system 500 cooperate to calculate the satisfaction of the air quality environment in the space. The satisfaction calculating system 500 is also called an air quality satisfaction calculating system.

[0030] The thermometer 20 has a function of measuring the temperature in the space, that is, the room temperature.

[0031] The hygrometer 30 has a function of measuring the humidity in the space.

[0032] The CO 2 meter 40 has a function of measuring the carbon dioxide concentration in the space.

[0033] The satisfaction degree calculation device 10 has a function of calculating the satisfaction degree for the air quality representing the air environment of the space. The satisfaction degree calculation device 10 is also called an air quality satisfaction degree calculation device.

[0034] Figure 2 1 is a diagram showing a configuration example of the satisfaction calculation device 10 according to the present embodiment.

[0035] The satisfaction calculation device 10 is a computer and includes a processor 910 and other hardware such as a memory 921, an auxiliary storage device 922, an input interface 930, an output interface 940, and a communication device 950. The processor 910 is connected to other hardware via a signal line and controls the other hardware.

[0036] As functional elements, the satisfaction calculation device 10 includes a specific enthalpy calculation unit 110, an air quality satisfaction calculation unit 120, and a storage unit 130. The storage unit 130 stores a first threshold value x1 and a second threshold value x2 as threshold values ​​131, and an air quality satisfaction level 31.

[0037] The functions of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120 are realized by software. The storage unit 130 is provided in the memory 921. In addition, the storage unit 130 may be provided in the auxiliary storage device 922, or may be provided in the memory 921 and the auxiliary storage device 922 in a distributed manner.

[0038] The processor 910 is a device for executing a satisfaction degree calculation program. The satisfaction degree calculation program is a program for realizing the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction degree calculation unit 120.

[0039] The processor 910 is an IC that performs calculation processing. Specific examples of the processor 910 are a CPU, a DSP, and a GPU. IC is the abbreviation of Integrated Circuit. CPU is the abbreviation of Central Processing Unit. DSP is the abbreviation of Digital Signal Processor. GPU is the abbreviation of Graphics Processing Unit.

[0040] The memory 921 is a storage device for temporarily storing data. A specific example of the memory 921 is SRAM or DRAM. SRAM is an abbreviation of Static Random Access Memory. DRAM is an abbreviation of Dynamic Random Access Memory.

[0041] The auxiliary storage device 922 is a storage device for storing data. A specific example of the auxiliary storage device 922 is an HDD. In addition, the auxiliary storage device 922 may also be a mobile storage medium such as an SD (registered trademark) memory card, CF, NAND flash memory, floppy disk, optical disk, high-density disk, Blu-ray (registered trademark) disk, or DVD. In addition, HDD is the abbreviation of Hard Disk Drive. SD (registered trademark) is the abbreviation of Secure Digital. CF is the abbreviation of CompactFlash (registered trademark). DVD is the abbreviation of Digital Versatile Disk.

[0042] The input interface 930 is a port connected to an input device such as a mouse, a keyboard, or a touch panel. Specifically, the input interface 930 is a USB terminal. In addition, the input interface 930 may also be a port connected to a LAN. USB is the abbreviation of Universal Serial Bus. LAN is the abbreviation of Local Area Network.

[0043] The input interface 930 is connected to the measuring sensors of the thermometer 20, the hygrometer 30, and the CO2 meter 40. The input interface 930 functions as a measuring sensor interface for acquiring sensor data acquired by the measuring sensors of the thermometer 20, the hygrometer 30, and the CO2 meter 40.

[0044] The output interface 940 is a port to which a cable of a display unit 941 such as a display is connected. Specifically, the output interface 940 is a USB terminal, an HDMI (registered trademark) interface, or a VGA interface. Specifically, the display is an LCD. The output interface 940 has the function of a display interface or an image output interface.

[0045] For example, the satisfaction degree calculation device 10 displays the calculated air quality satisfaction degree 31 on a display via the output interface 940 .

[0046] HDMI (registered trademark) is the abbreviation of High Definition Multimedia Interface. VGA is the abbreviation of Video Graphic Array. LCD is the abbreviation of Liquid Crystal Display.

[0047] The communication device 950 has a receiver and a transmitter. The communication device 950 is connected to a communication network such as a LAN, the Internet, or a telephone line. Specifically, the communication device 950 is a communication chip or a NIC. In addition, the communication device 950 may also have a function of a communication interface for obtaining sensor data obtained by each measuring sensor of the thermometer 20, the hygrometer 30, and the CO2 meter 40 in a wired or wireless manner. NIC is the abbreviation of Network Interface Card.

[0048] The satisfaction calculation program is executed in the satisfaction calculation device 10. The satisfaction calculation program is read into the processor 910 and executed by the processor 910. In the memory 921, not only the satisfaction calculation program but also the OS is stored. OS is the abbreviation of Operating System. The processor 910 executes the satisfaction calculation program while executing the OS. The satisfaction calculation program and the OS can also be stored in the auxiliary storage device 922. The satisfaction calculation program and the OS stored in the auxiliary storage device 922 are loaded into the memory 921 and executed by the processor 910. In addition, part or all of the satisfaction calculation program can also be embedded in the OS.

[0049] The satisfaction calculation device 10 may include a plurality of processors instead of the processor 910. These plurality of processors share the responsibility of executing the satisfaction calculation program. Like the processor 910, each processor is a device that executes the satisfaction calculation program.

[0050] Data, information, signal values, and variable values ​​used, processed, or output by the satisfaction calculation program are stored in the memory 921 , the auxiliary storage device 922 , or a register or cache memory within the processor 910 .

[0051] The "unit" of each unit of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120 may also be rewritten as a "circuit", "process", "step", "processing" or "line". The satisfaction calculation program enables a computer to perform specific enthalpy calculation processing and air quality satisfaction calculation processing. The "processing" of the specific enthalpy calculation processing and the air quality satisfaction calculation processing may also be rewritten as a "program", "program product", "computer-readable storage medium storing a program" or "computer-readable recording medium recording a program". In addition, the satisfaction calculation method is a method implemented by the satisfaction calculation device 10 executing the satisfaction calculation program.

[0052] The satisfaction calculation program may be provided by being stored in a computer-readable recording medium. In addition, the satisfaction calculation program may be provided as a program product.

[0053] ***Description of the action***

[0054] Next, the operation of the satisfaction calculation device 10 of this embodiment will be described. The operation procedure of the satisfaction calculation device 10 corresponds to the satisfaction calculation method. In addition, the program that realizes the operation of the satisfaction calculation device 10 corresponds to the satisfaction calculation program.

[0055] Figure 3 This is a flowchart showing an example of the operation of the satisfaction calculation device 10 according to the present embodiment.

[0056] <Measurement Data Acquisition Process: Step S101>

[0057] The input interface 930 acquires sensor data acquired by each measuring sensor of the thermometer 20, the hygrometer 30, and the CO2 meter 40. The sensor data includes values ​​of temperature, humidity, and carbon dioxide concentration.

[0058] In addition, when it is determined that the input interface 930 cannot obtain the sensor data, the process ends.

[0059] <Specific enthalpy calculation process: step S102>

[0060] The specific enthalpy calculation unit 110 obtains the temperature and humidity in the space through the input interface 930. The specific enthalpy calculation unit 110 calculates the specific enthalpy h in the space using the temperature and humidity in the space.

[0061] Specifically, the specific enthalpy calculation unit 110 calculates the specific enthalpy h using the temperature and humidity measured by the thermometer 20 and the hygrometer 30 as input values. According to the definition in physics, the specific enthalpy h is calculated by the following (Formula 1) using the temperature t (° C.) and the absolute humidity m (Kg / kg').

[0062] Specific enthalpy h = 1.006*t+(1.856t+2501)*m (Formula 1)

[0063] In addition, some hygrometers have a function of measuring absolute humidity. Therefore, as the hygrometer 30, it is preferable to use a hygrometer having a function of measuring absolute humidity.

[0064] On the other hand, a more general hygrometer has the function of measuring only relative humidity. When using a hygrometer that can only measure relative humidity, by further measuring the air pressure or assuming the atmospheric pressure (for example, 1 atmospheric pressure = 1013 Pa, etc.), the absolute humidity can be calculated from the relative humidity. In this way, a hygrometer that can only measure relative humidity can also be used.

[0065] <Air Quality Satisfaction Calculation Process: Step S103>

[0066] First, the air quality satisfaction calculation unit 120 obtains the carbon dioxide concentration in the space and determines constants a and b that take different values ​​according to the carbon dioxide concentration. Then, the air quality satisfaction calculation unit 120 calculates the satisfaction with the air quality as the air quality satisfaction 31 using the specific enthalpy h and the constants a and b.

[0067] Specifically, it is as follows.

[0068] The air quality satisfaction degree calculation unit 120 calculates the air quality satisfaction degree 31 using the specific enthalpy h calculated by the specific enthalpy calculation unit 110 and the carbon dioxide concentration measured by the CO 2 meter 40 .

[0069] The air quality satisfaction level 31 is a value indicating satisfaction with air quality indicating the air environment of a space for which the air quality satisfaction level is calculated, and is also referred to as air quality environment satisfaction level.

[0070] The air quality satisfaction level S can be calculated by an experimental method using subjects, and it is known that the air quality satisfaction level S can be calculated by the following functional formula (Formula 2) using the specific enthalpy h as a variable.

[0071] Air quality satisfaction S = a*h+b (Formula 2)

[0072] a, b: constants

[0073] Regarding the values of constants a and b, different values are used according to the carbon dioxide concentration. Specifically, the values of a and b are determined by the following equations.

[0074] (i) When the carbon dioxide concentration < x1 ppm: a = a1, b = b1

[0075] (ii) When x1 ppm ≤ carbon dioxide concentration < x2 ppm: a = a2, b = b2

[0076] (iii) When x2 ppm ≤ carbon dioxide concentration: a = a3, b = b3

[0077] According to the results of the experiment, the best results were obtained when x1 = 600 and x2 = 900. At this time, it was found that values of a = -1.0 ± 0.5 and b = 125 ± 25 were preferable.

[0078] However, the values of x1, x2, a, and b in this embodiment are not limited to these values.

[0079] When summarizing the above example of the air quality satisfaction calculation process, it is as follows.

[0080] The satisfaction calculation device 10 stores the first threshold value x1 and the second threshold value x2 as the threshold value 131 of the carbon dioxide concentration in the storage unit 130.

[0081] The air quality satisfaction calculation unit 120 determines the first constant a and the second constant b according to any one of the cases where the carbon dioxide concentration is lower than the first threshold value, the case where the carbon dioxide concentration is equal to or higher than the first threshold value and lower than the second threshold value, and the case where the carbon dioxide concentration is equal to or higher than the second threshold value.

[0082] As described above, the air quality satisfaction calculation unit 120 determines the first constant a to be multiplied by the specific enthalpy h and the second constant b to be added to the value obtained by multiplying the specific enthalpy h by the first constant a as constants. The air quality satisfaction calculation unit 120 calculates the value obtained by adding the second constant b to the value obtained by multiplying the specific enthalpy h by the first constant a as the air quality satisfaction S.

[0083] ***Description of the effects of this embodiment***

[0084] As described above, according to the satisfaction calculation system of this embodiment, the following effects are achieved: by using the carbon dioxide concentration and the specific enthalpy calculated based on the temperature and humidity, it is possible to calculate qualitative information such as the satisfaction of the air quality environment as a quantitative index.

[0085] ***Other structures***

[0086] <Modification Example 1>

[0087] The satisfaction calculation device 10 may also display a display screen indicating the air quality satisfaction level S on the display unit 941 via the output interface 940 .

[0088] In addition, the satisfaction calculation device 10 can also display the air quality satisfaction S on an external display device via an image output interface.

[0089] The storage unit 130 stores the history of the air quality satisfaction levels S calculated by the air quality satisfaction level calculation unit 120. The satisfaction level calculation device 10 may visualize the transition of the air quality satisfaction level S in a form such as a graph or a table and display it on the display unit 941 or an external display device.

[0090] <Modification 2>

[0091] In this embodiment, the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction degree calculation unit 120 are implemented by software. As a modified example, the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction degree calculation unit 120 may also be implemented by hardware.

[0092] Specifically, the satisfaction calculation device 10 includes an electronic circuit 909 instead of the processor 910 .

[0093] Figure 4 1 is a diagram showing a configuration example of a satisfaction calculation device 10 according to a modification of the present embodiment.

[0094] The electronic circuit 909 is a dedicated electronic circuit for realizing the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120. Specifically, the electronic circuit 909 is a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA, an ASIC or an FPGA. GA is the abbreviation of Gate Array. ASIC is the abbreviation of Application Specific Integrated Circuit. FPGA is the abbreviation of Field-Programmable Gate Array.

[0095] The functions of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120 may be implemented by one electronic circuit or may be implemented by distributing them in a plurality of electronic circuits.

[0096] Alternatively, the electronic circuit may be a dedicated circuit that realizes the functions of each functional element as well as the memory 921 and the auxiliary storage device 922 .

[0097] As another variation, a part of the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120 may be implemented by an electronic circuit, and the remaining functions may be implemented by software. In addition, a part or all of the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120 may also be implemented by firmware.

[0098] The processor and the electronic circuit are also referred to as processing circuits, respectively. That is, the functions of the specific enthalpy calculation unit 110 and the air quality satisfaction calculation unit 120 are implemented by the processing circuits.

[0099] Implementation Method 2

[0100] In this embodiment, differences from the first embodiment and additions to the first embodiment are mainly described.

[0101] In this embodiment, the same reference numerals are given to components having the same functions as those in Embodiment 1, and description thereof will be omitted.

[0102] ***Description of the structure***

[0103] In this embodiment, in addition to the functions of the satisfaction calculation system 500 disclosed in Embodiment 1, the system also has a function of controlling air conditioning equipment and ventilation equipment based on the calculation result of the satisfaction calculation device 10, namely, the air quality satisfaction degree 31.

[0104] Figure 5 1 is a diagram showing a configuration example of a satisfaction degree calculation system 500 according to the present embodiment.

[0105] The satisfaction calculation system 500 of the present embodiment has a control device 200 that affects air quality in addition to the configuration described in Embodiment 1. The control device 200 includes an air conditioner 50 and a ventilator 60.

[0106] Each of the air conditioner 50 and the ventilation device 60 has an interface with the satisfaction calculation device 10. Each of the air conditioner 50 and the ventilation device 60 has a function of changing the control content according to the control instruction 35 from the satisfaction calculation device 10. In addition, each of the air conditioner 50 and the ventilation device 60 has a function of notifying the satisfaction calculation device 10 of the control information of the device. However, in each of the air conditioner 50 and the ventilation device 60, the interface with the satisfaction calculation device 10 does not need to be a dedicated interface. As the interface with the satisfaction calculation device 10, for example, an existing interface used for information exchange with other devices such as an air conditioner remote controller may be used.

[0107] Figure 6 1 is a diagram showing a configuration example of the satisfaction calculation device 10 according to the present embodiment.

[0108] The satisfaction calculation device 10 has the structure described in Embodiment 1 and further has a device control interface 960. The device control interface 960 obtains control information and power consumption information transmitted from each device of the air conditioner 50 and the ventilation device 60. In addition, the input interface 930 or the communication device 950 may also have the function of the device control interface 960.

[0109] In addition to the functional elements described in Embodiment 1, the satisfaction calculation device 10 further includes a control instruction determination unit 140. In addition, in the satisfaction calculation device 10, in addition to the threshold 131 and the air quality satisfaction level 31 described in Embodiment 1, the storage unit 130 stores control information 32 and power consumption information 33. Similar to the functions described in Embodiment 1, the functions of the satisfaction calculation device 10 of this embodiment are also realized by software or hardware.

[0110] ***Description of the action***

[0111] Next, the operation of the satisfaction calculation device 10 of this embodiment will be described. The operation procedure of the satisfaction calculation device 10 corresponds to the satisfaction calculation method. In addition, the program that realizes the operation of the satisfaction calculation device 10 corresponds to the satisfaction calculation program.

[0112] Figure 7 This is a flowchart showing an example of the operation of the satisfaction calculation device 10 according to the present embodiment.

[0113] Figure 7 The processing of steps S101 to S103 in Figure 3 The processing of steps S101 to S103 in is the same.

[0114] <Control Instruction Determination Process: Step S104>

[0115] The control instruction determination unit 140 determines the control instruction 35 for changing the control of the control device 200 that affects the air quality based on the air quality satisfaction level 31 .

[0116] The storage unit 130 stores the history of the control information 32 in the control device 200 , the history of the air quality satisfaction level 31 , and the history of the power consumption information 33 in the control device 200 .

[0117] The control instruction determination unit 140 estimates the amount of change in the air quality satisfaction level 31 caused by the control instruction 35 and the increase in power consumption caused by the control instruction 35, using the history of the control information 32, the history of the air quality satisfaction level 31, and the history of the power consumption information 33. Then, the control instruction determination unit 140 determines, as the control instruction 35, a control content that can be realized with the smallest increase in power consumption among the control contents that improve the air quality satisfaction level 31 compared to the current situation.

[0118] A specific example of determining the control instruction 35 is as follows.

[0119] The control instruction determination unit 140 reads out the history of each of the air quality satisfaction level 31 , the control information 32 , and the power consumption information 33 stored in the storage unit 130 .

[0120] The control instruction determination unit 140 determines whether control is required to improve the air quality satisfaction level 31. Specifically, the control instruction determination unit 140 compares the current air quality satisfaction level 31 with a predetermined air quality satisfaction level threshold to determine whether control is required to improve the air quality satisfaction level 31.

[0121] When it is determined that control for improving the air quality satisfaction level 31 is necessary, the control instruction determination unit 140 determines control for improving the air quality satisfaction level 31 as the control instruction 35 for the air conditioner 50 and the ventilator 60. Then, the control instruction determination unit 140 requests the air conditioner 50 and the ventilator 60 to provide the control instruction 35.

[0122] In addition, sometimes it is determined in the past that control is required to increase the air quality satisfaction level 31, and the control instruction 35 is currently being executed in the control device 200. In this case, when it is determined that the air quality satisfaction level 31 has sufficiently increased, the control instruction determiner 140 ends the request for the control instruction 35 being executed.

[0123] The control instruction determination unit 140 determines the control instruction 35 as follows.

[0124] The control instruction 35 is any one of an instruction to change the control of the air conditioner 50 to reduce the specific enthalpy h, an instruction to increase the ventilation volume of the ventilation device 60 to reduce the carbon dioxide concentration, and a combination of the above instructions. In addition, it is preferable to select a method that can achieve these controls with the smallest possible increase in power consumption as the control instruction 35.

[0125] The control instruction determination unit 140 compares the history of the control information 32 and the history of the power consumption information 33, thereby estimating the increase in power consumption caused by the control change based on the control instruction 35. Then, the control instruction determination unit 140 determines, as the control instruction 35, the control that can be achieved with the smallest increase in power consumption among the controls that improve the air quality satisfaction level 31 compared to the current situation.

[0126] Another specific example of determining the control instruction 35 is as follows.

[0127] The storage unit 130 may store the history of the control information 32 in the control device 200 and the history of the air quality satisfaction degree 31 , and store information on the power consumption amount corresponding to the control content of the control device 200 in advance.

[0128] In this case, the control instruction determination unit 140 estimates the amount of change in the air quality satisfaction level 31 caused by the control of the control device 200 for each control content of the control device 200 based on the history of the control information 32 and the history of the air quality satisfaction level 31. Then, the control instruction determination unit 140 determines the control content that can be implemented with the minimum increase in power consumption among the control contents that improve the air quality satisfaction level 31 compared to the current situation as the control instruction 35 by combining it with the power consumption when the control content is implemented.

[0129] For example, when the increase in power consumption due to a change in control content is already known through a product catalog or other methods, the increase in power consumption due to the change in control may be calculated using the known information.

[0130] Figure 8 This is a flowchart showing an operation example of a process of storing the control information 32 and the power consumption information 33 in the storage unit 130 according to the present embodiment.

[0131] <Processing of Acquiring Control Information 32 and Power Consumption Information 33: Step S201>

[0132] The device control interface 960 acquires control information 32 , which is information on the control state of each device, and power consumption information 33 , which is information on the power consumption of each device, from the air conditioner 50 and the ventilation device 60 .

[0133] Examples of the control information 32 of the air conditioner 50 include the operation mode, set temperature, and air volume of the air conditioner 50. Examples of the control information 32 of the ventilator 60 include the air volume of the ventilator 60 and the presence or absence of the heat exchange function.

[0134] <Processing of Storage Control Information 32: Step S202>

[0135] The device control interface 960 stores the control information 32 acquired in step S201 in the storage unit 130 . Thus, the history of the control information 32 is stored in the storage unit 130 .

[0136] <Processing of accumulating power consumption information 33: Step S203>

[0137] The device control interface 960 stores the power consumption information 33 acquired in step S201 in the storage unit 130 . Thus, the history of the power consumption information 33 is stored in the storage unit 130 .

[0138] In addition, as described above, the increase in power consumption due to the change in the control content may be clarified through the product catalog or other methods, and the power consumption increase can be calculated using such clarified information. In this case, the satisfaction calculation device 10 may not have the functions of obtaining the power consumption information in step S201 and accumulating the power consumption information in step S203.

[0139] ***Description of the Effects of the Embodiment***

[0140] As described above, according to the satisfaction calculation system of this embodiment, the control contents of the air conditioner 50 and the ventilation device 60 can be determined according to the calculation result of the air quality satisfaction, thereby improving the air quality satisfaction with a small increase in power consumption.

[0141] ***Other structures***

[0142] <Variation 3>

[0143] When an operation is input to the control device 200, the satisfaction calculation device 10 may not determine the control instruction 35 for the device to which the operation is input in the control device 200. The satisfaction calculation device 10 may determine the control instruction 35 only for the device to which the operation is not input.

[0144] In the present embodiment, it is described that the satisfaction calculation device 10 determines the control of the air conditioner 50 and the ventilation device 60 .

[0145] In addition, it is also possible to input operation from the user to the air conditioner 50 or the ventilator 60 via a user operation terminal such as a remote controller installed on the wall. Alternatively, it is also possible to input control content instructions from a higher-level controller connected to the air conditioner 50 or the ventilator 60.

[0146] In this case, the air conditioner 50 or the ventilation device 60 to which a control instruction is inputted by the user's operation or the upper controller operates according to the input operation content. The satisfaction calculation device 10 performs the operation required to achieve the appropriate air quality satisfaction for the air conditioner 50 or the ventilation device 60 to which a control instruction is inputted by the user's operation or the upper controller.

[0147] According to this modification 3, a space can be provided in which an operation request inputted from a user via a user operation terminal or an operation instruction from a higher-level controller is satisfied, and air quality satisfaction is improved by appropriately controlling another device. Thus, the control content of the control device for achieving good air quality satisfaction in the space can be determined without hindering operations from the user or other control devices.

[0148] Implementation 3

[0149] In this embodiment, differences from Embodiment 1 or 2 and additions to Embodiment 1 or 2 are mainly described.

[0150] In this embodiment, the same reference numerals are given to components having the same functions as those in Embodiment 1 or 2, and description thereof will be omitted.

[0151] ***Description of the structure***

[0152] The satisfaction calculation system 500 of this embodiment has a function of collecting users' subjective evaluations in addition to the calculation function of the air quality satisfaction disclosed in Embodiment 1 or 2. In addition, the satisfaction calculation system 500 of this embodiment has a function of correcting the calculation result of the air quality satisfaction by using the value of the user's subjective evaluation as an input value.

[0153] The air quality satisfaction 31 calculated in the above-mentioned embodiment expresses a person's subjective evaluation of air quality as a quantitative value based on a certain scale. On the other hand, an individual's evaluation of air quality is sometimes affected by individual differences such as preferences for air quality or sensitivity to air quality. Therefore, when considering each individual or a small group as an evaluation object, the subjective evaluation felt by the members of the individual or group and the air quality satisfaction 31 calculated in Embodiment 1 or 2 may deviate to a certain extent.

[0154] In this embodiment, the satisfaction calculation device 10 obtains the subjective evaluation of the user using the space as feedback information about the air quality satisfaction 31. The satisfaction calculation device 10 derives the correction term based on the subjective evaluation and the information of the temperature, humidity and carbon dioxide concentration at that time. Then, the satisfaction calculation device 10 constructs an air quality satisfaction calculation formula taking into account the correction term and uses it to calculate the air quality satisfaction 31. As a result, the satisfaction calculation device 10 can calculate the air quality satisfaction 31 that better matches the subjective satisfaction of the user using the space with the air quality.

[0155] Fig. 9 1 is a diagram showing a configuration example of a satisfaction degree calculation system 500 according to the present embodiment.

[0156] The satisfaction calculation system 500 of the present embodiment has a subjective evaluation input device 70 in addition to the configuration described in the second embodiment.

[0157] The subjective evaluation input device 70 has an interface with the satisfaction calculation device 10 .

[0158] Fig.10 1 is a diagram showing a configuration example of the satisfaction calculation device 10 according to the present embodiment.

[0159] The satisfaction calculation device 10 has a subjective evaluation input interface 970 in addition to the structure described in Embodiment 2. The subjective evaluation input interface 970 receives input of a subjective evaluation 34 related to air quality satisfaction. Specifically, the subjective evaluation input interface 970 obtains the subjective evaluation 34 sent from the subjective evaluation input device 70 and stores the subjective evaluation 34 in the storage unit 130. In addition, the input interface 930 or the communication device 950 may also have the function of the subjective evaluation input interface 970.

[0160] Furthermore, the satisfaction degree calculation device 10 has a satisfaction degree index generation unit 150 in addition to the functional elements described in Embodiment 2. The satisfaction degree index generation unit 150 generates a correction term used in calculating the air quality satisfaction degree based on the subjective evaluation 34 .

[0161] In addition to the information described in Embodiment 2, the storage unit 130 also stores the subjective evaluation 34. Similar to the functions described in Embodiment 2, the functions of the satisfaction calculation device 10 of this embodiment are also realized by software or hardware.

[0162] In addition, Fig. 9 and Fig.10In the embodiment, in addition to the structure of the second embodiment, a subjective evaluation input interface 970, a satisfaction index generating unit 150, and a subjective evaluation 34 are further provided. However, in addition to the structure of the first embodiment, a subjective evaluation input interface 970, a satisfaction index generating unit 150, and a subjective evaluation 34 may be further provided.

[0163] ***Description of the action***

[0164] Next, the operation of the satisfaction calculation device 10 of this embodiment will be described. The operation procedure of the satisfaction calculation device 10 corresponds to the satisfaction calculation method. In addition, the program that realizes the operation of the satisfaction calculation device 10 corresponds to the satisfaction calculation program.

[0165] Fig.11 This is a flowchart showing an example of the operation of the satisfaction calculation device 10 according to the present embodiment.

[0166] Fig.11 The processing of steps S101, S102 and S103 in Figure 3 or Figure 7 The processing of step S101, step S102 and step S103 in is the same. In addition, the processing of step S104 is the same as Figure 7 The processing of step S104 in is the same.

[0167] <Checking for New Subjective Evaluation: Step S121>

[0168] The subjective evaluation input interface 970 acquires the subjective evaluation 34 from the subjective evaluation input device 70 , and stores the acquired subjective evaluation 34 in the storage unit 130 .

[0169] The satisfaction index generating unit 150 determines whether a new subjective evaluation 34 is added to the storage unit 130 .

[0170] When a new subjective evaluation 34 is added, the process proceeds to step S122 .

[0171] When a new subjective evaluation 34 is not added, the process proceeds to step S103, and the air quality satisfaction level is calculated in the same manner as the process described in the first or second embodiment.

[0172] <Satisfaction Index Generation Process: Step S122>

[0173] The satisfaction index generating unit 150 obtains the new subjective evaluation 34 stored in the storage unit 130, and the temperature, humidity, and carbon dioxide concentration when the new subjective evaluation 34 is obtained. When the new subjective evaluation 34 is obtained, the temperature, humidity, and carbon dioxide concentration are obtained from the thermometer 20, the hygrometer 30, and the CO2 meter 40.

[0174] The satisfaction index generation unit 150 calculates the correction term f(h) of the air quality satisfaction level based on the new subjective evaluation 34 and the temperature, humidity, and carbon dioxide concentration when the new subjective evaluation 34 is obtained. h is specific enthalpy, and f represents a function.

[0175] Specifically, it is as follows.

[0176] The satisfaction index generation unit 150 generates the correction term f(h) by a multiple regression analysis method. Specifically, the storage unit 130 stores the history of the subjective evaluation 34 and the temperature, humidity, and carbon dioxide concentration corresponding to the history of the subjective evaluation 34. The satisfaction index generation unit 150 generates the correction term f(h) by a multiple regression analysis method based on the history of the subjective evaluation 34, the temperature, humidity, and carbon dioxide concentration corresponding to the history of the subjective evaluation 34, the new subjective evaluation 34, and the temperature, humidity, and carbon dioxide concentration corresponding to the new subjective evaluation 34.

[0177] Alternatively, the satisfaction index generation unit 150 may generate the correction term f(h) by a machine learning method such as a convolutional neural network. The satisfaction index generation unit 150 generates a machine learning model based on the history of the subjective evaluation 34 and the temperature, humidity, and carbon dioxide concentration corresponding to the history of the subjective evaluation 34. Then, the satisfaction index generation unit 150 generates the correction term f(h) by a machine learning method based on the new subjective evaluation 34 and the temperature, humidity, and carbon dioxide concentration corresponding to the new subjective evaluation 34 using the machine learning model.

[0178] The following (Formula 3) shows an air quality satisfaction calculation formula including the calculated correction term f(h).

[0179] Air quality satisfaction S'=a*h+b+f(h) (Formula 3)

[0180] a, b: constants

[0181] Here, h, a, and b are the same as those described in Implementation Example 1.

[0182] <Air Quality Satisfaction Calculation Process Using Correction Item: Step S103a>

[0183] The air quality satisfaction degree calculation unit 120 calculates the air quality satisfaction degree S′ using (Formula 3) including the correction term f(h).

[0184] ***Description of the Effects of the Present Embodiment***

[0185] As described above, the satisfaction calculation system of this embodiment has a subjective evaluation input interface and a satisfaction index generation unit, and the calculation formula of air quality environment satisfaction is corrected according to the subjective evaluation. Therefore, according to the satisfaction calculation system of this embodiment, the air quality satisfaction of the evaluation object space with a high degree of consistency with the user's subjective can be calculated.

[0186] In the above embodiments 1 to 3, the various parts of the satisfaction calculation device are described as independent functional blocks. However, the structure of the satisfaction calculation device may not be the structure of the above embodiments. The functional blocks of the satisfaction calculation device can be any structure as long as they can realize the functions described in the above embodiments. In addition, the satisfaction calculation device may not be a single device, but a system composed of multiple devices.

[0187] Furthermore, a plurality of parts in Embodiments 1 to 3 may be implemented in combination. Alternatively, one part of these embodiments may be implemented. In addition, these embodiments may be implemented in combination as a whole or in part.

[0188] That is, in Embodiments 1 to 3, it is possible to freely combine the respective embodiments, to modify any constituent element in the respective embodiments, or to omit any constituent element in the respective embodiments.

[0189] In addition, the above-mentioned embodiments are essentially preferred illustrations and are not intended to limit the scope of the present disclosure, the scope of the application of the present disclosure, and the scope of the use of the present disclosure. The above-mentioned embodiments can be variously changed as needed. For example, the steps described using the flowchart can also be appropriately changed.

[0190] Description of symbols

[0191] 10: Satisfaction calculation device; 20: Thermometer; 30: Hygrometer; 31: Air quality satisfaction; 32: Control information; 33: Power consumption information; 34: Subjective evaluation; 35: Control instruction; 40: CO2 meter; 50: Air conditioning equipment; 60: Ventilation equipment; 70: Subjective evaluation input device; 110: Specific enthalpy calculation unit; 120: Air quality satisfaction calculation unit; 130: Storage unit; 131: Threshold value; 140: Control instruction determination unit; 150: Satisfaction index generation unit; 200: Control device; 500: Satisfaction calculation system; 909: Electronic circuit; 910: Processor; 921: Memory; 922: Auxiliary storage device; 930: Input interface; 940: Output interface; 941: Display unit; 950: Communication device; 960: Equipment control interface; 970: Subjective evaluation input interface.

Claims

1. A satisfaction calculation device, which calculates the satisfaction with respect to the air quality of the air environment representing a space, wherein: The satisfaction calculation device comprises: a specific enthalpy calculation unit that obtains the temperature and humidity in the space and calculates the specific enthalpy in the space; and The air quality satisfaction calculation unit obtains the carbon dioxide concentration in the space, determines a constant that takes different values ​​according to the carbon dioxide concentration, and calculates the air quality satisfaction as the air quality satisfaction using the specific enthalpy and the constant.

2. The satisfaction calculation device according to claim 1, wherein: The air quality satisfaction calculation unit determines a first constant multiplied by the specific enthalpy and a second constant added to a value obtained by multiplying the specific enthalpy by the first constant as the constants, and calculates a value obtained by adding the second constant to a value obtained by multiplying the specific enthalpy by the first constant as the air quality satisfaction level.

3. The satisfaction calculation device according to claim 2, wherein: The satisfaction calculation device includes a storage unit that stores a first threshold value and a second threshold value as the threshold value of the carbon dioxide concentration. The air quality satisfaction calculation unit determines the first constant and the second constant based on any one of a case where the carbon dioxide concentration is lower than the first threshold, a case where the carbon dioxide concentration is greater than the first threshold and lower than the second threshold, and a case where the carbon dioxide concentration is greater than the second threshold.

4. The satisfaction calculation device according to claim 3, wherein: The satisfaction degree calculation device includes a display unit that displays a display screen indicating the air quality satisfaction degree.

5. The satisfaction calculation device according to claim 3 or 4, wherein: The satisfaction calculation device has an image output interface, which displays the air quality satisfaction on an external display device.

6. The satisfaction calculation device according to any one of claims 3 to 5, wherein: The satisfaction degree calculation device includes a control instruction determination unit that determines a control instruction that changes control of a control device that affects the air quality based on the air quality satisfaction degree.

7. The satisfaction calculation device according to claim 6, wherein: The storage unit stores the history of control information in the control device and the history of the air quality satisfaction, and holds information on power consumption corresponding to the control content of the control device in advance. The control instruction determination unit estimates the change in air quality satisfaction caused by the control of the control device according to the history of control information in the control device and the history of the air quality satisfaction, according to each control content of the control device, and determines the control content that can be achieved with the minimum increase in power consumption among the control contents that improve the air quality satisfaction compared to the current situation as the control instruction by combining it with the power consumption when the control content is implemented.

8. The satisfaction calculation device according to claim 6, wherein: The storage unit stores a history of control information in the control device, a history of the air quality satisfaction level, and a history of power consumption information in the control device. The control instruction determination unit uses the history of the control information, the history of the air quality satisfaction and the history of the power consumption information to estimate the change in the air quality satisfaction caused by the control instruction and the increase in power consumption caused by the control instruction, and determines the control content that can be achieved with the smallest increase in power consumption among the control contents that improve the air quality satisfaction compared to the current situation as the control instruction.

9. The satisfaction calculation device according to claim 7 or 8, wherein: In a situation where an operation is input to the control device, the satisfaction calculation device does not determine the control instruction for the device to which the operation is input among the control devices, and determines the control instruction for the device to which the operation is not input.

10. The satisfaction calculation device according to any one of claims 1 to 9, wherein: The satisfaction calculation device comprises: A subjective evaluation input interface, which accepts input of a subjective evaluation related to the air quality satisfaction; and A satisfaction index generating unit generates a correction term used in calculating the air quality satisfaction index based on the subjective evaluation.

11. The satisfaction calculation device according to claim 10, wherein: The satisfaction index generating unit generates the correction term by a multiple regression analysis method.

12. The satisfaction calculation device according to claim 10, wherein: The satisfaction index generating unit generates the correction item by a machine learning method.

13. A satisfaction calculation method, a satisfaction calculation device for calculating the satisfaction with the air quality of the air environment representing a space, wherein: The computer obtains the temperature and humidity in the space, calculates the specific enthalpy in the space, The computer obtains the carbon dioxide concentration in the space, determines a constant that takes different values ​​according to the carbon dioxide concentration, and calculates the satisfaction degree for the air quality as the air quality satisfaction degree using the specific enthalpy and the constant.

14. A satisfaction calculation program for calculating a satisfaction calculation device for calculating a satisfaction level of air quality representing an air environment of a space, wherein: The satisfaction calculation program causes a computer to execute the following processing: a specific enthalpy calculation process, obtaining the temperature and humidity in the space and calculating the specific enthalpy in the space; and The air quality satisfaction calculation process obtains the carbon dioxide concentration in the space, determines a constant that takes different values ​​according to the carbon dioxide concentration, and uses the specific enthalpy and the constant to calculate the air quality satisfaction as the air quality satisfaction.

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