WO2023188096A1 - 空調制御装置および空調制御方法 - Google Patents
空調制御装置および空調制御方法 Download PDFInfo
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- WO2023188096A1 WO2023188096A1 PCT/JP2022/015944 JP2022015944W WO2023188096A1 WO 2023188096 A1 WO2023188096 A1 WO 2023188096A1 JP 2022015944 W JP2022015944 W JP 2022015944W WO 2023188096 A1 WO2023188096 A1 WO 2023188096A1
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- variable
- air
- comfort level
- value
- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/1928—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperature of one space
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
Definitions
- the present disclosure relates to technology for controlling air conditioners.
- Patent Document 1 the temperature of the air-conditioned space is adjusted by controlling control amounts such as air temperature and wind direction of the air conditioner. At this time, there are various demands, such as wanting to achieve the target temperature with lower power consumption and reaching the target temperature more quickly than just adjusting the temperature. Depending on what kind of requests are prioritized, the values of the control variables will differ even if the same target temperature is aimed at. In order to determine the control amount in accordance with such various requests, Patent Document 1 discloses that a specific pattern is determined from a plurality of patterns of the control amount using evaluation values.
- control variables are input into a function (model) to calculate the target items related to the user's requests, such as average wind speed and power consumption, and weighting is given to the target items that are desired to be prioritized.
- the technology discloses a technology that realizes air conditioning operation that better meets the user's needs by calculating an evaluation value by multiplying and adding together the weighting coefficients marked with and controlling the air conditioning equipment with a control amount that has a higher evaluation value. There is.
- Patent Document 1 discloses that weighting coefficients are given more weight to target items that should be prioritized, but there is no disclosure as to how to specifically determine the weighting coefficients, and the weighting coefficients are There is also no disclosure that the decision will be made automatically. Furthermore, the weighting does not take into consideration the comfort of air conditioning, nor is there any suggestion thereof. The present disclosure aims to automatically adjust weighting coefficients so as to control air conditioning according to requests while maintaining more comfort.
- FIG. 1 is a configuration diagram showing an example of an air conditioning system including an air conditioning control device according to Embodiment 1.
- FIG. FIG. 2 is a refrigerant circuit diagram showing a configuration example of the air conditioner shown in FIG. 1.
- FIG. 1 is a block diagram showing a configuration example of an air conditioning control device according to Embodiment 1.
- FIG. 3 is a diagram showing an example of an analysis condition list. It is a figure which shows an example of the blow-off condition regarding the operating state of an air conditioner among analysis conditions. It is a figure which shows an example of load conditions among analysis conditions.
- FIG. 3 is a diagram illustrating an example of a priority management table that manages priorities using numerical ranges. It is a figure which shows an example of pattern data.
- FIG. 7 is a diagram illustrating an example of different variables in a variable importance table.
- 11 is a diagram showing an example of a comfort degree table during cooling, corresponding to the control mode and variables of the variable importance table shown in FIG. 10.
- FIG. It is a figure which shows an example of the comfort level table at the time of heating.
- 12 is a diagram showing an example of a comfort level table during cooling corresponding to the variable importance level table shown in FIG. 11.
- FIG. 3 is a diagram showing an example of a comfort level function of "the difference in temperature between +1.7 m above the floor and +0.1 m above the floor” during cooling.
- FIG. 6 is a diagram illustrating an example of a variable importance table used when explaining a method for determining weighting coefficients by a coefficient calculation unit.
- FIG. 6 is a diagram illustrating an example of a comfort level table used when explaining a method for determining weighting coefficients by a coefficient calculation unit.
- FIG. 3 is a diagram showing a comfort level function of "air speed above the floor + 1.1 m" during cooling.
- FIG. 3 is a diagram showing a comfort level function of "temperature above the floor +1.1 m" during cooling.
- FIG. 3 is a diagram showing a comfort level function of "difference in temperature between +1.7 m above the floor and +0.1 m above the floor” during cooling.
- 4 is a diagram showing another example of the comfort level function shown in FIG. 3.
- FIG. 4 is a hardware configuration diagram showing an example of the configuration of the arithmetic device shown in FIG. 3.
- FIG. 4 is a hardware configuration diagram showing another example of the configuration of the arithmetic device shown in FIG. 3.
- FIG. FIG. 3 is a flow diagram showing an example of an operation procedure of the air conditioning control device according to the first embodiment.
- 27 is a flowchart of the operation procedure in step ST11 shown in FIG. 26.
- FIG. 27 is a flowchart of the operation procedure in step ST15 shown in FIG. 26.
- FIG. 29 is a flowchart of the operation procedure in step ST23 shown in FIG. 28.
- FIG. FIG. 2 is a configuration diagram showing an example of an air conditioning system including an air conditioning control device according to a second embodiment.
- 31 is a functional configuration diagram of the ventilation device shown in FIG. 30.
- FIG. 31 is a diagram showing an example of the configuration of a total heat exchanger of the ventilation device shown in FIG. 30.
- FIG. FIG. 2 is a block diagram showing a configuration example of an air conditioning control device according to a second embodiment. It is a figure which shows an example of the blow-off condition regarding the operating state of an air conditioner and a ventilation device among analysis conditions.
- FIG. 34 is a diagram showing an example of the pattern data shown in FIG. 33.
- FIG. 34 is a diagram showing an example of the comfort level function shown in FIG. 33.
- FIG. 27 is a flow diagram of the operation procedure in the second embodiment of step ST15 shown in FIG. 26.
- FIG. FIG. 3 is a block diagram showing a configuration example of an air conditioning control device according to a third embodiment.
- 39 is a diagram showing an example of the change history table shown in FIG. 38.
- FIG. 39 is a diagram showing an example of a comfort level function improved by the function improvement unit shown in FIG. 38.
- FIG. 12 is a flow diagram showing an example of an operation procedure of a function improvement unit in Embodiment 3.
- Embodiment 1 An embodiment of an air conditioning control device 1 of the present disclosure will be described with reference to the drawings.
- FIG. 1 is a configuration diagram showing an example of an air conditioning system including an air conditioning control device 1 according to the first embodiment.
- the air conditioning system includes an air conditioner 2 that conditions air in a space to be air conditioned, an air conditioning control device 1 that controls the air conditioner 2, and a sensor 3 that measures at least the environment of the space to be air conditioned.
- Air conditioning control device 1 is connected to air conditioner 2 and sensor 3 via network 4 .
- the sensor 3 includes a sensor 3a, a sensor 3b, and so on.
- the air conditioner 2 and the sensor 3 are connected separately, but the sensor 3 may be included in the air conditioner 2 and its location is not limited.
- the air conditioner 2 includes an outdoor unit 21, an indoor unit 22, and a controller 23.
- the indoor unit 22 is installed indoors, which is a space to be air-conditioned.
- FIG. 2 is a refrigerant circuit diagram showing an example of the configuration of the air conditioner 2 shown in FIG. 1.
- the outdoor unit 21 is connected to the indoor unit 22 via refrigerant piping.
- the outdoor unit 21 includes a compressor 51, a four-way valve 52, a heat source side heat exchanger 53, a throttle device 54, and an outdoor fan 57.
- the indoor unit 22 includes a load-side heat exchanger 55, an indoor fan 58, and a wind direction adjustment section 59.
- the compressor 51, the heat source side heat exchanger 53, the expansion device 54, and the load side heat exchanger 55 are connected by refrigerant piping, and a refrigerant circuit 50 in which refrigerant circulates is configured.
- a refrigerant circuit 50 in which refrigerant circulates is configured.
- the heat medium circulating between the outdoor unit 21 and the indoor unit 22 is a refrigerant, but a heat medium heat exchanger (not shown) in which water and the refrigerant exchange heat is used. may be provided in the outdoor unit 21, and water may be circulated between the outdoor unit 21 and the indoor unit 22.
- the wind direction adjustment section 59 is provided at the air outlet of the indoor unit 22.
- the wind direction adjustment section 59 has left and right flaps 61 and upper and lower flaps 62.
- the left and right flaps 61 change the angle clockwise or counterclockwise with respect to the front direction of the air outlet of the indoor unit 22, so that the direction of the airflow sent out from the indoor unit 22 is parallel to the floor surface. change.
- the direction of the airflow that changes depending on the angle of the left and right flaps 61 is the left and right wind direction.
- clockwise angles are expressed as positive values
- counterclockwise angles are expressed as negative values.
- the upper and lower flaps 62 change the direction of the airflow sent out from the indoor unit 22 by changing the angle from the gravity direction to the horizontal direction at the air outlet of the indoor unit 22 with respect to the gravity direction.
- the direction of gravity is 0°
- the horizontal direction is 90°.
- the direction of the airflow that changes depending on the angle of the upper and lower flaps 62 is the vertical wind direction.
- the method of displaying the angle indicating the vertical wind direction is not limited to the case where the gravitational direction is 0° and the horizontal direction is 90°, but the gravitational direction may be 90° and the horizontal direction is 0°. In other words, when the horizontal direction is 0°, the depression angle corresponds to the angle indicating the vertical wind direction.
- the controller 23 is, for example, a microcomputer.
- the controller 23 is connected to a compressor 51, a four-way valve 52, an outdoor fan 57, a throttle device 54, an indoor fan 58, and a wind direction adjustment section 59 via signal lines not shown.
- the controller 23 is a device that allows a user or administrator to turn the indoor unit 22 on and off, and to manually change settings such as the set temperature and air volume. Controller 23 may be a remote controller.
- the controller 23 controls the refrigeration cycle of the refrigerant circulating in the refrigerant circuit 50.
- the controller 23 controls the four-way valve 52 so that the flow direction of the refrigerant in the refrigerant circuit 50 is switched in accordance with the heating operation mode and the cooling operation mode.
- the controller 23 also controls the operating frequency of the compressor 51, the opening degree of the throttle device 54, and the outdoor fan so that the indoor temperature and humidity measured by the sensor 3 match the respective set values within a predetermined range. 57 rotation speed is controlled.
- the indoor temperature and humidity settings are set by the user.
- the controller 23 transmits air conditioning operation data 36 indicating the operating state of the air conditioner 2 to the air conditioning control device 1 via the network 4 at regular time intervals.
- the fixed time interval is, for example, 5 minutes.
- the controller 23 controls the rotation speed of the indoor fan 58 and the angles of the left and right flaps 61 and the upper and lower flaps 62 of the wind direction adjustment unit 59 in accordance with the control command. .
- the air volume and air speed are adjusted in accordance with the rotation speed of the indoor fan 58.
- the left and right wind directions are adjusted in accordance with the angles of the left and right flaps 61, and the up and down wind directions are adjusted in accordance with the angles of the upper and lower flaps 62.
- the refrigerant absorbs heat in the heat source side heat exchanger 53, and the refrigerant exchanges heat with indoor air in the load side heat exchanger 55 and radiates heat, thereby warming the indoor air.
- the operation mode is the cooling operation
- the refrigerant radiates heat in the heat source side heat exchanger 53, and the refrigerant exchanges heat with indoor air in the load side heat exchanger 55, thereby cooling the indoor air.
- the air conditioner 2 may be a room air conditioner in which a plurality of indoor units 22 are connected to one outdoor unit.
- the air conditioner 2 may be a building multi-air conditioner used in an office building or the like.
- the air conditioning system may be a central air conditioning system used for air conditioning throughout a large building.
- the air conditioning system may be installed in a server room, a warehouse, etc., and may be an air conditioning system that performs objective air conditioning.
- These configurations are examples of the air conditioner 2 and an air conditioning system including the air conditioner 2, and the type of the air conditioner 2 is not limited to the above-mentioned configuration.
- the air-conditioned space is not limited to the above-mentioned rooms, buildings, and other spaces.
- the sensor 3 is a sensor that measures a physical quantity.
- the sensor 3 transmits sensor data 37, which is a measured value, to the air conditioning control device 1 via the network 4 at regular time intervals.
- the fixed time interval is, for example, 5 minutes.
- the number of sensors 3 may be one or more.
- FIG. 1 shows a case where the sensor 3 has a plurality of sensors 3-1 to 3-n (n is an integer of 2 or more).
- the sensor 3 acquires information about indoor and outdoor environments.
- the sensor 3 is a sensor that measures temperature, humidity, radiation temperature, thermal image, air velocity, and the like. If the sensor 3 includes an infrared sensor, the thermal image is acquired by the infrared sensor.
- the sensor 3 may be provided in the air conditioner 2.
- the indoor unit 22 may be provided with a sensor 3 that measures the room temperature, which is the temperature of the indoor air
- the outdoor unit 21 may be provided with a sensor 3 that measures the outside air temperature, which is the temperature of the outdoor air.
- the outside temperature is not limited to the case where the sensor 3 transmits to the air conditioning control device 1.
- a server (not shown) that provides weather forecasts via a network such as the Internet may send information on the outside temperature to the air conditioning control device 1.
- the network 4 is a communication network that connects the air conditioning control device 1, the air conditioner 2, and the sensor 3.
- the communication means in the network 4 may be wired, wireless, or a combination of wired and wireless.
- the communication protocol for communication performed via the network 4 is not particularly limited, and may be a general-purpose protocol that is open to the public.
- the communication range of the network 4 may be a narrow range such as a LAN (Local Area Network) or a wide range such as the Internet.
- the network 4 is a dedicated line operated by the manufacturer of the air conditioner 2, the communication protocol used in the network 4 may be a dedicated protocol.
- FIG. 3 is a block diagram showing an example of the configuration of the air conditioning control device 1 according to the first embodiment.
- the air conditioning control device 1 is an information processing device that controls the air conditioner 2.
- the air conditioning control device 1 includes a storage device 13 , a calculation device 14 , a receiving device 11 , and a transmitting device 12 .
- the receiving device 11 acquires air conditioning operation data 36 from the air conditioner 2 at fixed time intervals, and stores the acquired data in the storage device 13.
- the receiving device 11 acquires sensor data 37 from the sensor 3 at regular time intervals and stores the acquired data in the storage device 13.
- the fixed time interval is, for example, 5 minutes. In the first embodiment, a case will be described in which the time interval at which the receiving device 11 acquires data from the air conditioner 2 and the sensor 3 is the same. The acquisition time interval may be different.
- the transmitting device 12 transmits the determined control command to the air conditioner 2.
- the storage device 13 stores an analysis condition list 131, equipment and space information 132, an airflow analysis model 133, pattern data 134, target conditions 135, measurement data 136 including air conditioning operation data 36 and sensor data 37, and control data.
- a mode list 137, a variable importance table 138, a comfort level table 139, and a comfort level function 140 are stored.
- the storage device 13 is, for example, an HDD (Hard Disk Drive).
- the storage device 13 may be a semiconductor memory. Information stored in the storage device 13 shown in FIG. 3 will be explained with reference to FIGS. 4 to 6.
- FIG. 4 is an image diagram showing an example of the analysis condition list 131 shown in FIG. 3.
- the analysis condition list 131 a plurality of analysis conditions consisting of combinations of blowout conditions and load conditions are set.
- a pattern name, operation mode, priority, load condition, blowing condition, and pattern generation state are stored in correspondence with the identifier of the analysis condition.
- the pattern generation state indicates whether airflow analysis is performed according to analysis conditions and pattern data is generated based on the results of the airflow analysis. The pattern data will be explained in detail later.
- each analysis condition is assigned a priority.
- the priority is expressed as a positive integer. For example, 1 is assigned to the highest priority and 10 is assigned to the lowest priority.
- a unique integer that does not overlap or an overlapping integer may be assigned to each analysis condition. For example, there may be a plurality of analysis conditions with a priority of 1, or there may be one analysis condition with a priority of 1.
- the priority given to each analysis condition is set based on the air conditioning operation data 36, for example.
- the higher the frequency of occurrence of the operating state the higher the priority is given to the analysis conditions corresponding to the operating state.
- the frequency of occurrence is calculated based on the performance data of the driving state stored in the storage device 13 during a predetermined period such as a certain period (three months) in the past. A specific example of the frequency of occurrence will be explained.
- the condition that greatly affects the frequency of occurrence of the operating state is the blowout condition, and for example, the frequency of occurrence is determined as follows. The number of times each variable of temperature, air volume, and wind direction at the outlet matches the set value is counted in the actual data. Of these occurrences, the number of occurrences in which each of these three variables matches its respective set value is defined as the occurrence frequency.
- the frequency of occurrence is calculated for each air outlet.
- FIG. 5 is an image diagram showing an example of the blowout conditions related to the operating state of the air conditioner 2 among the analysis conditions shown in FIG. 4.
- the blowout conditions include conditions such as the state of the compressor 51, the blowout wind speed and blowout wind direction at the outlet of the indoor unit 22, and the like.
- the state of the compressor 51 is an on or off state.
- the blowing wind direction is information including left and right wind directions and up and down wind directions.
- the blowing conditions may include blowing air volume and blowing temperature.
- the indoor unit 22 may have one or more air outlets, and a plurality of indoor units 22 may be installed in a room that serves as a common air-conditioned space.
- the air outlet conditions are configured by a combination of air outlet conditions set for each outlet.
- the blowout conditions are configured by a combination of blowout conditions set for each outlet of each indoor unit 22.
- FIG. 6 is an image diagram showing an example of the load conditions among the analysis conditions shown in FIG. 4.
- the load conditions are conditions regarding the inflow of heat into the room and the outflow of heat from the room.
- the load conditions include boundary conditions, heat passage conditions, and heat generation conditions.
- the boundary condition is a condition regarding the inflow and outflow of heat generated due to a temperature difference between indoors and outdoors from a boundary surface such as a wall in the room where the air conditioner 2 is installed.
- Heat passage conditions are conditions regarding the inflow and outflow of heat into a room from openings such as windows and doors.
- the heat generation conditions are conditions related to the amount of heat generated indoors due to the human body, OA equipment, and the like.
- FIG. 6 is a table showing conditions related to heat inflow and outflow into the air-conditioned space as an example of load conditions.
- the load conditions shown in FIG. 6 are part of the boundary conditions, heat passage conditions, and heat generation conditions.
- values for wall surface temperature, ceiling surface temperature, and floor surface temperature are set in correspondence with load condition identifiers.
- the surface temperature of the wall is expressed as wall temperature Tw
- the surface temperature of the ceiling is expressed as ceiling temperature Tc
- the surface temperature of the floor is expressed as floor temperature Tf.
- ceiling temperature Tc 25°C
- floor temperature Tf 15°C are set.
- ⁇ T is, for example, 2°C.
- FIG. 7 is an image diagram showing an example of a priority management table when priorities are managed using numerical ranges.
- the priorities are set and managed in two categories: essential conditions and additional conditions.
- An upper limit priority and a lower limit priority are set for each of the essential conditions and additional conditions.
- a priority range of analysis conditions under which airflow control can be started is set.
- the essential condition indicates that airflow control can be started when airflow analysis is performed from the analysis condition assigned the upper limit priority to the analysis condition assigned the lower limit priority.
- the additional conditions a priority range of analysis conditions under which airflow analysis is performed after the start of airflow control is set. Specifically, after airflow control is started, the additional conditions include airflow analysis and the accumulation of the analysis results from the analysis condition with the upper limit priority to the analysis condition with the lower limit priority. This indicates that they can be executed in parallel. A priority management table is not shown.
- the integer 1 is set as the upper limit priority
- the integer 3 is set as the lower limit priority, as essential conditions.
- airflow control can be started when airflow analysis targeting analysis conditions assigned a priority of 1 or more and 3 or less is completed.
- an integer 4 is set for the upper limit priority
- an integer 10 is set for the lower limit priority.
- FIG. 7 shows a case where the upper limit priority of the essential condition is 1 and the lower limit priority is 3, but the lower limit priority may be 1, which is the same as the upper limit priority.
- the equipment and spatial information 132 is information necessary to create the airflow analysis model 133, and is composed of spatial information and equipment information.
- the spatial information is information regarding the air-conditioned space in which the air conditioner 2 is installed.
- the spatial information is information regarding the room in the air-conditioned space, including the shape of the room, the arrangement of windows, doors, fixtures, etc., and the heat insulation performance representing the thermal characteristics of the wall surface.
- the device information is information regarding the performance of the air conditioner 2.
- the equipment information is information including the position of the air outlet of the air conditioner 2, the capacity and efficiency of the air conditioner 2, and the settable air outlet temperature, air volume, and air direction.
- the information listed here is an example, and the device and space information 132 is not limited to these pieces of information.
- the airflow analysis model 133 is, for example, a model used in a CFD (Computational Fluid Dynamics) analysis method.
- the airflow analysis model 133 is created based on the equipment and space information 132 and the analysis conditions in the analysis condition list 131.
- FIG. 8 is an image diagram showing an example of the pattern data shown in FIG. 3.
- the pattern data is data that is created based on the results of airflow analysis and indicates trends in the distribution of the environment, such as temperature and wind speed, within the air-conditioned space.
- Variables representing the environment in the air-conditioned space, such as temperature and wind speed included in the pattern data may be variables other than temperature and wind speed as long as they are variables related to thermal index or comfort in the indoor space.
- the number may be one or more.
- the types and number of variables set in the variable importance table 138, which will be described later, are set to be the same as these variables included in the pattern data.
- the pattern data 134 shown in FIG. 3 means information such as a table in which a plurality of pattern data are recorded. A method for generating the pattern data shown in FIG. 8 will be explained later.
- FIG. 9 is an image diagram showing an example of the control mode list 137 shown in FIG. 3.
- the control mode list 137 is a list in which control modes for cooling or heating are stored.
- the control mode is different from the operation mode of the air conditioner 2 and is the name of control using cooling, heating, etc. to obtain temporal or spatial effects on the space to be air-conditioned. For example, rapid cooling and heating, cooling and heating for the purpose of maintaining room temperature, cooling and heating for improving the user's intellectual productivity, cooling that emphasizes the user's sense of airflow, and cooling that focuses on the user's feet. This includes heating, etc.
- a symbol corresponding to each control mode and an operation mode corresponding to each control mode are attached, which correspond to the control mode symbols of the variable importance table 138 described below.
- variable importance table 138 is a table that stores the importance of variables such as temperature and wind speed in the air-conditioned space used in the pattern data for each control mode and operation mode stored in the control mode list 137. It is.
- FIG. 10 is an image diagram showing an example of the variable importance table 138 shown in FIG. 3.
- the variable importance is an integer value expressed as a value greater than or equal to 1 and less than or equal to the number of variables in the variable importance table 138 within one control mode, with 1 being the most important value.
- the importance level is stored in advance for each control mode, but may be updated later by the user.
- the types and number of variables in the variable importance table 138 are stored so as to be the same as the types and number of variables such as temperature and wind speed in the air-conditioned space included in the pattern data.
- the three variables included in the pattern data are "wind speed at 1.1 m on the floor”, “temperature at 1.1 m on the floor”, and “difference between temperature between +1.7 m on the floor and +0.1 m above the floor”. In this case, the importance of each variable is shown for each control mode shown in FIG.
- the control mode is "A: Rapid cooling"
- the most important factor is to reduce the temperature at the height of the user's work surface to within a comfortable range, and the "temperature at 1.1m floor surface” is important. Set the degree to 1 (most important).
- the next most important factor is that the user feels comfortable due to the airflow, and the importance level of "wind speed at 1.1 m on the floor” is set as 2.
- the importance level of "the difference in temperature between the floor +1.7m and the floor +0.1m” is set to 3 as an element that is not very important during cooling. shall be.
- control mode is "D: Room temperature maintenance (heating)"
- the most important thing is to suppress the draft feeling caused by the heating airflow and prevent the expansion of the temperature difference between the user's head height and foot height.
- the importance of "wind speed at 1.1 m on the floor” and “difference in temperature between +1.7 m on the floor and +0.1 m on the floor” are both set to 1 (most important).
- the "1.1m floor temperature” is considered to rise at the same time as the temperature at foot level, so it is given the next importance level of 2.
- the variable importance table 138 stores the importance of each variable within each control mode. Furthermore, the importance levels of other control modes are similarly stored.
- FIG. 11 is an image diagram showing an example of different variables in the variable importance table 138.
- the variables stored in the variable importance level table 138 may be variables other than those stored in FIG. 10 as long as they are the same as the variables in the air-conditioned space included in the pattern data. For example, if the user's sensible temperature, radiant temperature, predicted mean thermal sensation report (PMV), etc. are used as variables in the pattern data, these values are also included in the variable importance table 138 as shown in FIG. A variable is added.
- PMV predicted mean thermal sensation report
- the comfort level table 139 stores target values for the percentage of users who feel comfortable during cooling and heating for each control mode and the importance of each variable stored in the variable importance table 138. It is a table.
- the comfort level is a numerical value ranging from 0% to 100%.
- the comfort level is a value that means that 100% is the most comfortable. For example, if there is a variable with a comfort level of 80%, it means that 80% of the users in the air-conditioned space are comfortable with that variable. This means controlling airflow in a way that allows you to feel it.
- FIG. 12 is an example of a cooling comfort table 139 that corresponds to the control mode and variables of the variable importance table 138 shown in FIG. 10.
- the comfort level is 90% for importance level 1
- the comfort level is 90% for importance level 2.
- the comfort level is set to 75%
- the comfort level is set to 50%. In this way, even if the variable is of low importance, it is possible to store it so that the percentage of users who feel comfortable with it is relatively larger than other variables.
- FIG. 13 is an example of the comfort level table 139 during heating.
- floor surface temperature of 1.1 m as in the example of "D: Room temperature maintenance (heating)" mentioned earlier, it may be thought that the temperature will rise with the temperature at foot level, and depending on the control mode, it may not necessarily be large.
- importance level 1 does not have to be a value, the user feels more comfortable as the importance level decreases, such as 85% comfort level for importance level 1, 60% comfort level for importance level 2, and 30% comfort level for importance level 3. Set the ratio so that it is small.
- FIG. 14 is an example of a comfort level table 139 during cooling that corresponds to the variable importance table 138 shown in FIG. 11.
- the comfort level stored in the comfort level table 139 can be changed later by the user based on the external environment of the building and the like. For example, if you live in a region where the outside environment is cold, the temperature at your feet may drop more easily than in other regions due to air flowing in through gaps in the room, making you more likely to feel uncomfortable due to the cold temperatures at your feet. There is.
- the comfort level stored in the comfort level table 139 can be further changed by taking into account the shape of the air-conditioned space, the user's preferences regarding the thermal environment, and the like. For example, when considering the shape of the space to be air-conditioned, if the airflow from the air conditioner is L-shaped or U-shaped, making it difficult for the airflow to reach every corner of the room, the "floor surface 1.1m wind speed" or “floor surface 1m wind speed” may be used. By changing the overall comfort level of each importance level at .1 m temperature to be higher than that of a square-shaped room, it becomes possible to perform air conditioning that allows airflow to easily reach every corner of the room.
- the comfort level of each importance level for "1.1m wind speed on the floor” will be lower overall than on other floors.
- the comfort level may be changed based on other factors. Other factors include, for example, the capacity and number of air conditioners 2, the gender ratio of users in the air-conditioned space, and the like.
- the comfort level function 140 is a correlation function between indoor variables and the user's comfort level during cooling or heating, and a graph thereof.
- the comfort level function 140 defines the relationship between the value of each variable and the comfort level.
- the comfort level function 140 has one variable on the horizontal axis and the user's comfort level on the vertical axis. An example of the comfort level function 140 during cooling will be explained using FIGS. 15 to 17.
- FIG. 16 is an example of the comfort level function 140 of the "floor surface temperature of 1.1 m" during cooling.
- FIG. 16 shows that the comfort level is at its maximum value when the temperature is 26° C., and in other ranges, the percentage of users who feel comfortable decreases with 26° C. being the maximum.
- FIG. 17 is an example of the comfort function 140 of "the difference in temperature between +1.7 m above the floor and +0.1 m above the floor" during cooling.
- FIG. 17 shows that users feel most comfortable when the temperature difference is 0° C., and as the temperature difference increases beyond that value, the percentage of users who feel comfortable decreases.
- the comfort level function 140 may be cited from a known document or may be based on results obtained from experiments or the like. Furthermore, the comfort level function 140 is not limited to a two-dimensional planar graph with two axes, but may be a three-dimensional space graph with three axes that simultaneously consider two indoor variables. For example, by using a comfort function 140 that takes "floor surface 1.1m wind speed" in the X-axis direction, "floor surface 1.1m temperature" in the Y-axis direction, and comfort level in the Z-axis direction, the user's position can be determined. Comfort can be expressed by considering wind speed and temperature at the same time.
- the value of the variable used on the horizontal axis of the comfort level function 140 does not necessarily have to be the absolute value of the variable, but may be a relative value viewed from another reference value.
- a reference value that users generally feel comfortable with may be set, and a relative value representing the magnitude of the difference from the reference value may be used as the horizontal axis.
- a value using a representative value, an average value, etc. in the air-conditioned space obtained from values measured by sensor data 37, which will be described later, may be used as the horizontal axis.
- a relative value representing the magnitude of may be used as the horizontal axis.
- the target condition 135 is a set condition regarding the target of the environment formed by the operation of the air conditioner 2 in the air-conditioned space.
- the target conditions 135 are, for example, upper and lower limits of a range that the air-conditioned space should satisfy with regard to variables such as temperature and wind speed.
- the target condition 135 may be a setting condition regarding one variable, or may be a setting condition regarding a plurality of variables.
- the target condition 135 may be set for a blowout condition in which a plurality of variables are combined.
- the target conditions 135 may include target values for each variable, and may be set by the user via a remote controller (not shown).
- the target conditions 135 are setting conditions for creating an ideal environment that can be derived from the air-conditioned space or an ideal environment that the user considers comfortable.
- analysis conditions with high priority prioritize airflow analysis in order to perform airflow control necessary to form the environment of target condition 135, corresponding to the current environment of the air-conditioned space. These are the analysis conditions to be performed.
- the target conditions 135 may include respective domains for the comfort function 140 of each variable.
- the range that the variable should satisfy in the air-conditioned space and the domain of the comfort function 140, which are set in the target condition 135, may have the same value or may have independent and different values. good.
- the target value of each variable included in the target condition 135 may be used as a standard for the comfort level set in the comfort level table 139. For example, if the target value for the temperature of 1.1 m of the floor surface set in the target condition 135 is 26°C, the comfort level for the importance level 1 of the temperature of 1.1 m of the floor surface in the comfort level table 139 is The comfort level at 26° C. in the temperature comfort function 140 may be used.
- the air conditioning operation data 36 includes, for example, information on set values such as set temperature, air volume, left and right wind direction, and up and down wind direction, or their operating states, and information used for air conditioning control such as room temperature, outside temperature, refrigerant temperature, and refrigerant flow rate. be.
- Information used for air conditioning control is measured by a sensor 3 provided in the air conditioner 2.
- the sensor data 37 is data measured by a sensor 3 such as a temperature sensor installed indoors.
- the air conditioning operation data 36 may include the sensor data 37.
- the calculation device 14 includes a model creation section 141, an airflow analysis section 142 that performs airflow analysis for each analysis condition, a pattern generation section 143 that generates pattern data from the analysis results, and an air conditioner 2 based on the pattern data or analysis results. and an airflow control section 144 that controls the airflow of the airflow. Although not shown, it also includes an evaluation value calculation section that calculates evaluation values.
- the model creation unit 141 creates a model used for airflow analysis. First, the model creation unit 141 creates shape data specifying the room shape, the arrangement of windows and fixtures, and the position of the air outlet of the air conditioner 2 based on the equipment and space information 132, and defines the area to be analyzed. Performs processing to divide into multiple small spaces. Furthermore, based on the analysis conditions, the model creation unit 141 creates conditions regarding the inflow and outflow of heat from the wall surface into the analysis target area, heat generation conditions due to human body heat generation, office automation equipment heat generation, etc., taking into consideration the position of fixtures, and inhalation Suction conditions such as inflow temperature and three-dimensional inflow air velocity at the mouth position, and blowout conditions such as outflow air volume at the outlet are set.
- the airflow analysis unit 142 performs calculations on the airflow analysis model 133 using a CFD analysis method or the like to determine the distribution of temperature, wind speed, etc. in the room that is the space to be air-conditioned. For example, the airflow analysis unit 142 divides the air-conditioned space into a large number of microregions, and calculates the temperature, wind speed, etc. of each microregion using the airflow analysis model 133.
- u is a three-dimensional velocity vector
- t is time
- p pressure
- ⁇ density
- ⁇ viscosity coefficient
- ⁇ 0 reference density
- g gravitational acceleration
- C p specific heat at constant pressure
- T temperature
- k thermal conductivity
- Q the internal heat generation amount
- Equation (1) is a continuity equation that represents the conservation of mass of a fluid.
- Equation (2) is an incompressible Navier-Stokes equation expressing conservation of momentum.
- Equation (3) is an energy equation.
- the airflow analysis unit 142 calculates the temperature, wind speed, etc. of each divided region by solving these equations (1) to (3) under appropriate initial values and boundary conditions. In this case, the air conditioning operation data 36 and sensor data 37 of the air conditioner 2 are used as initial values and boundary condition values in the airflow analysis.
- the analysis conditions included in the airflow analysis model 133 are prioritized, and the airflow analysis unit 142 performs airflow analysis in accordance with the order of priority. After the airflow analysis is completed under the analysis conditions given a predetermined priority, it is possible to start airflow control. Thereafter, airflow control is executed by the airflow control unit 144 at fixed time intervals (for example, every 5 minutes), but during that time, the airflow analysis unit 142 temporarily suspends calculations for analysis conditions for which airflow analysis is not performed. The calculation may be continued by parallel processing.
- the airflow control unit 144 can start airflow control using airflow analysis at an early stage.
- the air conditioner 2 can be caused to start the most efficient operation at an early stage among the operating states that have been operated in the past.
- the airflow analysis unit 142 continues to perform airflow analysis even after airflow control is started, resulting in analysis results based on analysis conditions corresponding to operating states with poor operating results. is accumulated. Thereafter, the airflow control unit 144 can also include operating states with low operating performance as options for airflow control.
- the pattern generation unit 143 performs statistical processing on the airflow analysis results to generate pattern data that expresses the tendency of the distribution of the environment of the air-conditioned space using fewer variables than the airflow analysis results. By storing the generated pattern data, the storage device 13 can reduce the data capacity to be stored, compared to the case where the airflow analysis results are stored.
- FIG. 8 is an image diagram showing an example of pattern data. Taking temperature as an example of a variable, the pattern generation unit 143 generates pattern data as follows.
- the pattern generation unit 143 divides a room to be an air-conditioned space into a plurality of small areas, and calculates the temperature measurement value of an area where a resident may be present among the temperature measurement values of each small area. Extract.
- the area where a resident may exist is, for example, an area at a height of 1.1 m above the floor surface.
- the pattern generation unit 143 sets a plurality of temperature ranges based on the preset upper and lower temperature limits and the number of divisions of the temperature range.
- the pattern generation unit 143 projects the small areas included in each temperature range onto a plane parallel to the floor surface, and generates pattern data indicating the temperature distribution so that the total area ratio of the projected plane becomes 100%. generate.
- the first category is 20°C or more and less than 21°C
- the first category is 21°C or more and less than 22°C.
- the 10th category of 29°C or higher and lower than 30°C.
- pattern data differs depending on the pattern.
- the occurrence rate in the fifth category is 44.43%, and the occurrence rate in the seventh category is 9.7%.
- the occurrence rate in the fifth category is 5.26%
- the occurrence rate in the seventh category is 40.16%. It can be seen that the room temperature of the pattern whose pattern name is pattern002 is higher than that of the pattern whose pattern name is pattern001.
- the pattern data generation method described with reference to FIG. 8 is an example, and other methods may be used. Further, the pattern generation unit 143 can generate pattern data not only when the variable is temperature but also for other variables such as wind speed, humidity, and comfort index, in the same way as when the variable is temperature. Furthermore, the variables are not limited to an area at a height of 1.1 m above the floor, but also an area 0.1 m above the floor corresponding to the height near the user's feet, and 1 above the floor corresponding to the height near the user's head when standing.
- the pattern generation unit 143 determines that the area is an area with a height of 1.1 m above the floor. Similarly, pattern data can be generated.
- the number of variables is not limited to one, but may be multiple.
- the pattern data is expressed as a frequency distribution based on any one or more of the indoor temperature, humidity, wind speed, comfort index, etc. in the analysis results.
- the types and number of variables set in the variable importance table 138 are stored so as to be the same as those variables included in the pattern data.
- the data size of the analysis results can be compressed and the storage capacity of the storage device 13 can be reduced. Further, by using the pattern data, it is possible to calculate an index representing temperature unevenness in a room, etc. from the pattern data, and to calculate an evaluation value. In other words, the weighting coefficient can be determined by determining comfort by considering the overall state of the room, such as temperature unevenness.
- the airflow control section 144 includes an airflow control availability determination section 41 , an operating state determination section 42 , a control command conversion section 43 , and a coefficient calculation section 44 .
- the airflow control availability determination unit 41 determines whether or not airflow control can be started based on the generation state of pattern data by the pattern generation unit 143. Pattern data is generated corresponding to analysis conditions assigned priorities.
- the airflow control possibility determining unit 41 determines that airflow control can be started if all pattern data corresponding to analysis conditions set with high priority have been generated.
- the operating state determination unit 42 includes a coefficient calculation unit 44, and when the airflow control possibility determination unit 41 determines that airflow control can be started, the operation state determination unit 42 calculates the measurement data 136 and the pattern data determined by the coefficient calculation unit 44 described below. Based on the weighting coefficient used when calculating the evaluation value, a pattern that realizes an environment closest to the target condition 135 is selected from among the plurality of generated pattern data, and the operating state of the air conditioner 2 is determined.
- the driving state determination unit 42 selects one control mode stored in the control mode list 137 based on the measured value of the indoor environment measured by the sensor data 37 and outputs it to the coefficient calculation unit 44.
- the control mode may be set by the user from the control mode list 137 via a remote controller (not shown).
- a method for selecting the control mode for example, there is a method in which it is determined whether the operating state of the air conditioner 2 is in a transient state or has reached a stable state, and the control mode is determined in accordance with the operating state.
- the transient state is a state in an unsteady process, such as immediately after the air conditioner 2 is started.
- the operating state of the air conditioner 2 is determined, for example, by acquiring information on the suction temperature and set temperature from the air conditioner 2, and comparing the temperature difference between the suction temperature and the set temperature with a predetermined threshold temperature. .
- the operating state determining unit 42 determines that the operating state of the air conditioner 2 is in a transient state, and selects either the "rapid cooling” or “rapid heating” control mode. Choose one.
- the operating state determining unit 42 determines that the operating state of the air conditioner 2 is stable, and sets the control mode to "room temperature maintenance (cooling)” or "room temperature maintenance”. (Heating)”.
- the operating state determination section 42 Since the airflow control is executed by the airflow control section 144 at fixed time intervals (for example, every 5 minutes), the operating state determination section 42 also selects the control mode at the same time intervals. Thereby, the control mode can be selected based on the latest measured value of the indoor environment measured by the sensor data 37. In this way, by flexibly selecting the control mode based on the latest measured values of the indoor environment, priority is given to the speed at which the air conditioner 2 reaches the target value immediately after startup, and comfort is prioritized after the air conditioner 2 stabilizes. is prioritized, and airflow control can be performed according to the situation of the air conditioner 2.
- the determination of the operating state of the air conditioner 2 is not limited to the above-mentioned determination method.
- the operating state of the air conditioner 2 may be determined based on whether the elapsed time from the start of activation is equal to or longer than a predetermined threshold time. If the elapsed time from the start of the air conditioner 2 is less than the threshold time, the operating state of the air conditioner 2 is determined to be a transient state, and if the elapsed time from the start of the air conditioner 2 is equal to or greater than the threshold time, the air conditioner 2 is determined to be in a transient state. The operating state of machine 2 is determined to be stable.
- the operating state determination unit 42 may select another control mode based on the current time instead of the elapsed time from the start of the air conditioner 2. For example, among the hours from 8:00 to 17:00, which are generally considered working hours, during times when particularly high productivity is required, the control mode "Intellectual productivity improvement (cooling)” or “Intellectual productivity improvement (cooling)” or “Intellectual A control mode such as “Productivity Improvement (Heating)” may be selected.
- the air conditioner 2 is controlled based on the control mode, which is the name of the control using cooling, heating, etc., to obtain a temporal or spatial effect on the air-conditioned space, rather than the operation mode such as cooling or heating.
- control mode which is the name of the control using cooling, heating, etc.
- the operation mode such as cooling or heating.
- the coefficient calculating unit 44 calculates the control mode selected by the driving state determining unit 42, the importance of each variable in the corresponding control mode stored in the variable importance table 138, and each variable stored in the comfort level table 139. Using the comfort level corresponding to the importance of the variable and the comfort level function 140 in which each variable is plotted on the horizontal axis, weighting coefficients for variables such as temperature and wind speed, which are used when calculating the evaluation value, are determined.
- the coefficient calculation unit 44 calculates the importance of the variable corresponding to the control mode specified from the comfort function 140 that defines the relationship between the value of each variable and the comfort level, the variable importance table 138, and the comfort level table 139.
- a weighting coefficient for each variable is calculated based on the comfort level corresponding to the degree of comfort. The specific procedure by which the coefficient calculation unit 44 determines the weighting coefficient will be described below. This will be explained using FIG. 13.
- FIGS. 18 and 19 are conceptual diagrams showing examples of the variable importance table 138 and the comfort level table 139 used when explaining the method by which the coefficient calculation unit 44 determines weighting coefficients.
- the coefficient calculation unit 44 searches for a control mode symbol that is the same as the control mode symbol representing the control mode selected by the driving state determination unit 42 from among the string of control mode symbols stored in the variable importance table 138. Then, the importance of each variable included in the rows in which the same control mode symbol is stored is obtained.
- the operating state determination unit 42 selects "C: Room temperature maintenance (cooling)" from the control mode list 137 shown in FIG. 9 as the control mode.
- FIG. 18 is a diagram for explaining an image when the coefficient calculation unit 44 refers to the variable importance table 138 when the operating state determination unit 42 selects the control mode “C: room temperature maintenance (cooling)”. It is.
- the coefficient calculation unit 44 sets the importance level of "wind speed above the floor +1.1 m” to 2, the importance level of "temperature above the floor + 1.1 m” to 1, and the importance level of "wind speed above the floor + 1.7 m and above the floor”.
- the importance level of "Temperature difference of +0.1 m" is acquired as 3.
- the coefficient calculation unit 44 obtains, from the comfort level table 139, the comfort level corresponding to the importance of each variable obtained from the variable importance table 138.
- FIG. 19 is a diagram for explaining an image when the coefficient calculation unit 44 refers to the comfort level table 139 when the coefficient calculation unit 44 has acquired the importance of each variable in the control mode shown in FIG. 18. It is.
- the coefficient calculation unit 44 calculates that the comfort level is 75% when the "air speed above the floor + 1.1 m" has the importance level 2, and the comfort level when the "temperature above the floor + 1.1 m” has the importance level 1. 90%, "difference in temperature between +1.7m on the floor and +0.1m above the floor” is obtained as a comfort level of 30% when the importance level is 3.
- the coefficient calculation unit 44 Based on the comfort level corresponding to the importance of each variable acquired in the comfort level table 139 and the comfort level function 140 for each variable, the coefficient calculation unit 44 generates a comfort level function 140 that satisfies the acquired comfort level or higher. Convert the range to the area value of the region on the coordinate plane. Further, the coefficient calculation unit 44 calculates the range of the comfort function 140 within the definition range based on the comfort function 140 for each variable and the upper and lower limits of the definition range of the comfort function 140 for each variable. Convert to the area value of the area on the coordinate plane.
- 20 to 22 are conceptual diagrams showing an example of the comfort level function 140 used when explaining the method by which the coefficient calculation unit 44 determines weighting coefficients.
- FIG. 20 shows the comfort function 140 of "air speed above the floor + 1.1 m" during cooling.
- FIG. 21 shows the comfort function 140 of "temperature above the floor +1.1 m" during cooling.
- FIG. 22 shows the comfort function 140 of "the difference in temperature between +1.7 m above the floor and +0.1 m above the floor” during cooling. Furthermore, in the comfort level function 140 of each variable, the comfort level according to the importance of each variable obtained in the comfort level table 139 is reflected on the Y axis of the comfort level function 140 of each variable. It is also a diagram. Furthermore, FIGS. 20 to 22 show a part of the function having a comfort level higher than the comfort level reflected on the Y-axis, the upper and lower limits of the variables at that time, and the area surrounded by the X-axis (in FIG. 14). It is also a diagram showing the shaded area).
- the coefficient calculation unit 44 calculates the ratio of the area of the comfort function 140 that satisfies the comfort value or more (referred to as a comfort area) to the area defined within the definition area of the comfort function 140 (referred to as a definition area). .
- the coefficient calculation unit 44 calculates the ratio between the comfortable area and the defined area by converting them into area values.
- the area ratio of the comfortable area to the defined area can be calculated, for example, using Equations 4 to 6 below.
- Rs, Rt, and Ru are the comfort areas for the defined area at "wind speed above the floor +1.1m", “temperature above the floor +1.1m”, and “difference between the temperature between the floor +1.7m and the floor +0.1m", respectively.
- the area ratio is [-].
- f(x), g(x) and h(x) are the comfort functions 140 for each variable.
- smin and smax, and s1 and s2 are the upper and lower limits [m/s] of the domain in the comfort function 140 of “above the floor + 1.1 m wind speed” and the above floor + 1 that satisfies the comfort level of 75% or more. .1m
- tmin and tmax, and t1 and t2 are the upper and lower limit values [°C] of the domain in the comfort function 140 of "Temperature +1.1m above the floor” and +1.1m above the floor that satisfies the comfort level of 90% or more. These are the upper and lower limits of temperature [°C].
- umin and umax, and u1 and u2 are the upper limit value and lower limit value [°C] of the domain in the comfort function 140 of "the difference in temperature between +1.7m on the floor and +0.1m on the floor", and the comfort level These are the upper and lower limits [° C.] of the difference in temperature between +1.7 m above the floor and +0.1 m above the floor, which satisfy 30% or more.
- smin may exceed s1 or smax may be below s2, so in that case, the lower limit value of s1 becomes smin.
- the upper limit value of s2 may be corrected to be equal to smax.
- the area ratios Rs, Rt, and Ru calculated for each variable tend to have smaller values as their importance or comfort level increases. Therefore, the smaller the area ratio of a variable, the greater the weight it needs to have as an element of the environment. Further, the method includes, for example, subtracting from 1 or taking a reciprocal number, and other methods may also be used.
- the coefficient calculation unit 44 calculates the weight as a coefficient for each variable based on the area ratio determined for each variable. For Rs, Rt, and Ru obtained as shown in FIG. 14, if a method of subtracting from 1 is used as a method to convert the smaller the value, the greater the weight as a variable, the coefficient of each variable is
- the coefficient calculation unit 44 first uses the comfort function 140 of each variable to correspond to the importance of each variable in the corresponding control mode. First, the area value of the area that is equal to or higher than that comfort level is calculated, and finally, the smaller the area value of the variable, the greater the weight as a coefficient, and the ratio is calculated.
- the coefficient calculating unit 44 of the state determining unit 42 can determine a weighting coefficient, which is a weight as a coefficient of each variable, based on a quantitative basis regarding comfort.
- the evaluation value calculation unit calculates an evaluation value based on the calculated weighting coefficient and each variable corresponding to the manipulated variable. Although it has been explained that each variable is common to pattern data, functions may be used in addition to pattern data. Pattern data and function outputs for each variable are determined according to the amount of operation of the air conditioner, and an evaluation value is calculated by multiplying and summing each variable by the weighting coefficient corresponding to each variable. A more specific calculation method will be described later.
- the operating state determination unit 42 determines the operation amount with a high evaluation value as the operation amount of the air conditioner.
- FIG. 23 is an image diagram showing another example of the comfort level function 140 shown in FIG. 3.
- the comfort level function 140 is not a two-dimensional planar graph consisting of two axes, but a three-axis graph using two axes representing two variables and one axis representing the comfort level, as shown in FIG.
- the range of the comfort function 140 that has a comfort level equal to or higher than the degree of comfort according to the importance of the two variables is defined as a spatial region. Convert to a volume value (assume the volume value of the comfort area).
- the coefficient calculation unit 44 calculates the ratio of the volume value to the volume of all regions within the defined region (which is taken as the volume value of the defined region). Then, the ratio of the volume value of the comfortable area to the volume value within the defined domain is compared for each variable, and the smaller the volume ratio of the variable, the greater the weight as a coefficient, and the ratio is calculated. Even when variables are considered at the same time, the weight as a coefficient of each variable can be calculated using the same method as in the case of a two-dimensional planar graph.
- Equations 4 to 6 are not equations for calculating the area of a region in a two-dimensional plane, but equations for calculating the volume of a region in a three-dimensional space.
- weighting coefficients are calculated based on a three-dimensional spatial graph with three axes, two variables can be considered in combination, so the evaluation value of pattern data is higher than when a two-dimensional planar graph with two axes is used. can be calculated more precisely, making it possible to perform more accurate airflow control.
- the control command conversion unit 43 converts the operating state, which is the operation amount determined by the operating state determining unit 42, into a control command that actually gives a command to the air conditioner 2. The control command conversion unit 43 then transmits the control command to the air conditioner 2.
- the airflow control possibility determination unit 41 when determining whether or not the airflow control possibility determination unit 41 can start airflow control, a case will be described in which the determination is made based on the generation state of pattern data; however, the airflow analysis unit 142 The determination may be made based on the generation state of the analysis result.
- a method using the frequency of occurrence of operating states in a certain period of time has been described as a priority setting method, the present invention is not limited to this method.
- the user may select an operating state with a high priority among the plurality of operating states.
- high priority operating states may be randomly set, such as presetting high priority operating states at equal intervals within the operable range of the air conditioner 2.
- the selectable range of the operating states of the air conditioner 2 is divided into multiple ranges in advance, and in each divided range, one representative operating state is given a high priority, and the other operating states are given a high priority. It is conceivable to assign a relatively lower priority than the priority of the driving state. In this case, the optimal operating state can be determined early from among typical conditions, and the range of selectable operating states can be gradually expanded to other conditions.
- the selectable range of operating conditions is divided into three categories.
- the three divisions are a first division of 0° or more and less than 30°, a second division of 30° or more and less than 60°, and a third division of 60° or more and less than 90°.
- a high priority is assigned to the angle 15° as a representative value, and a relatively lower priority than the priority of the representative value is assigned to the other angles.
- a high priority is assigned to 45° as the representative value, and a relatively lower priority than the representative value is assigned to the other angles.
- a high priority is assigned to 75° as the representative value, and a relatively lower priority than the representative value is assigned to the other angles.
- the airflow analysis unit 142 preferentially executes airflow analysis for analysis conditions in which the vertical wind direction angles are 15°, 45°, and 75°. Thereafter, the airflow analysis unit 142 performs airflow analysis for analysis conditions in which the vertical wind direction angle is other than 15°, 45°, and 75°. Airflow control can be started when airflow analysis is completed for typical operating conditions within each divided range, and the most efficient operation can be performed from among the representative operating conditions.
- Airflow control can be started when airflow analysis is completed for typical operating conditions within each divided range, and the most efficient operation can be performed from among the representative operating conditions.
- FIG. 3 an example of the hardware of the arithmetic unit 14 of the air conditioning control device 1 shown in FIG. 3 will be explained.
- FIG. 24 is a hardware configuration diagram showing an example of the configuration of the arithmetic device 14 shown in FIG. 3.
- the arithmetic device 14 shown in FIG. 3 is configured with a processing circuit 81, as shown in FIG. 24.
- the functions of the model creation section 141, airflow analysis section 142, pattern generation section 143, and airflow control section 144 shown in FIG. 3 are realized by the processing circuit 81.
- the processing circuit 81 may be implemented using, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), or an FPGA (Field-Programmable Gate). Array) or a combination of these.
- Each of the functions of the model creation section 141, airflow analysis section 142, pattern generation section 143, and airflow control section 144 may be realized by the processing circuit 81.
- the functions of the model creation section 141, airflow analysis section 142, pattern generation section 143, and airflow control section 144 may be realized by one processing circuit 81.
- FIG. 25 is a hardware configuration diagram showing another example of the configuration of the arithmetic unit 14 shown in FIG. 3. Another example of hardware of the arithmetic device 14 shown in FIG. 3 will be explained.
- the arithmetic device 14 shown in FIG. 3 is configured with a processor 82 such as a CPU (Central Processing Unit) and a memory 83, as shown in FIG.
- the functions of the model creation section 141, airflow analysis section 142, pattern generation section 143, and airflow control section 144 are realized by the processor 82 and the memory 83.
- FIG. 25 shows that processor 82 and memory 83 are communicably connected to each other via bus 84.
- the functions of the model creation section 141, airflow analysis section 142, pattern generation section 143, and airflow control section 144 are realized by software, firmware, or a combination of software and firmware.
- Software and firmware are written as programs and stored in memory 83.
- the processor 82 reads and executes programs stored in the memory 83 to realize the functions of each section.
- Examples of the memory 83 include ROM (Read Only Memory), flash memory, EPROM (Erasable and Programmable ROM), and EEPROM (Electrically Erasable and Programmable ROM).
- ROM Read Only Memory
- flash memory EPROM (Erasable and Programmable ROM)
- EEPROM Electrical Erasable and Programmable ROM
- a nonvolatile semiconductor memory such as a programmable ROM (ROM) is used.
- a volatile semiconductor memory such as RAM (Random Access Memory) may be used as RAM (Random Access Memory) may be used.
- a removable recording medium such as a magnetic disk, a flexible disk, an optical disk, a CD (Compact Disc), an MD (Mini Disc), and a DVD (Digital Versatile Disc) may be used.
- a removable recording medium such as a magnetic disk, a flexible disk, an optical disk, a CD (Compact Disc), an MD (Mini Disc), and a DVD (Digital Versatile Disc) may be used.
- FIG. 26 is a flow diagram illustrating an example of the operation procedure of the air conditioning control device 1 according to the first embodiment.
- the trigger for starting the flow shown in FIG. 26 is, for example, that the air conditioning control device 1 receives an operation start notification signal from the air conditioner 2 indicating that the operation has started.
- the controller 23 of the air conditioner 2 transmits an operation start notification signal to the air conditioning control device 1 when starting the operation.
- the airflow control availability determination unit 41 determines whether or not airflow control can be started. For example, the airflow control possibility determination unit 41 determines whether generation of pattern data has been completed by the pattern generation unit 143 based on the results of airflow analysis under analysis conditions assigned a higher priority than a predetermined priority. Determine whether
- step ST11 if the generation of pattern data corresponding to the analysis condition with a high priority has been completed, the airflow control possibility determination unit 41 determines that airflow control can be started, and proceeds to step ST12. On the other hand, as a result of the determination in step ST11, if the generation of pattern data corresponding to the analysis condition with a high priority has not been completed, the airflow control possibility determination unit 41 returns to step ST11.
- step ST12 the airflow control unit 144 determines whether it is the timing of the airflow control execution cycle. When the airflow control unit 144 determines that it is the timing of the airflow control execution cycle, the process proceeds to step ST13. When the airflow control unit 144 determines that it is not the timing of the airflow control execution cycle, the process returns to step ST12.
- the airflow control execution cycle is, for example, a fixed cycle such as every 5 minutes.
- the airflow analysis unit 142 continues the airflow analysis for the remaining analysis conditions in order of priority.
- the results of airflow analysis under analysis conditions set with relatively low priority are also accumulated in the storage device 13 over time.
- the results of airflow analysis based on analysis conditions with low priority can also be used at an early stage, allowing more accurate airflow control to be performed.
- the airflow control unit 144 acquires the air conditioning operation data 36 and the sensor data 37 from the storage device 13.
- the data acquired here is not limited to current data, which is data acquired from the air conditioner 2 and the sensor 3 at the time closest to the current time.
- the data acquired from the storage device 13 may be past data consisting of air conditioning operation data 36 and sensor data 37 stored in the storage device 13 in the past.
- step ST14 the airflow control unit 144 selects a pattern that achieves a state closest to a preset target value from the pattern data already generated by the pattern generation unit 143.
- step ST15 the operating state determining unit 42 determines the operating state of the air conditioner 2 by referring to the blowing conditions of the air conditioner 2 corresponding to the pattern selected in step ST14.
- step ST16 the control command conversion unit 43 converts the operating state determined in step ST15 into a control command that actually gives a command to the air conditioner 2, and transmits the control command to the air conditioner 2.
- step ST17 the airflow control unit 144 determines whether the termination condition is satisfied. If the termination conditions are met, the airflow control unit 144 terminates the process. On the other hand, if the end condition is not satisfied as a result of the determination in step ST17, the airflow control unit 144 returns to step ST12.
- the termination condition is, for example, that the air conditioner 2 is stopped.
- the controller 23 of the air conditioner 2 stops the operation of the air conditioner 2, and also indicates that the operation of the air conditioner 2 has been stopped.
- a stop notification signal shown is transmitted to the air conditioning control device 1.
- the termination condition is not limited to stopping the air conditioner 2, but may also be a condition that a preset time has elapsed since the start of operation of the air conditioner 2.
- the preset time is the time when the operation of the air conditioner 2 becomes stable.
- FIG. 27 is a flow diagram showing an example of the operation procedure in step ST11 shown in FIG. 26.
- the pattern generation unit 143 stores the generated pattern data in the storage device 13 (step ST34).
- the airflow control possibility determining unit 41 determines whether the priority k matches the lower limit priority kL (step ST35). As a result of the determination in step ST35, if the priority k does not match the lower limit priority kL, the airflow control possibility determining unit 41 sets a value obtained by adding 1 to the current priority k as a new priority k (step ST35). ST36), return to step ST32.
- step ST35 if the priority k matches the lower limit priority kL, the airflow control possibility determination unit 41 determines that airflow control can be performed (step ST37). Note that if there are two or more analysis conditions assigned the same priority k, the airflow control unit 144 executes steps ST32 to ST34 for each of the two or more analysis conditions, and then proceeds to step ST35.
- FIG. 28 is a flow diagram showing an example of the operation procedure in step ST15 shown in FIG. 26. With reference to FIG. 28, pattern selection processing by the driving state determination unit 42 will be described.
- the air conditioner 2 has one indoor unit 22, and the number of air outlets provided in the indoor unit 22 is one.
- the air conditioning operation data 36 includes data on the ON or OFF state of the air conditioner 2, the operation mode indicating cooling operation or heating operation, the set temperature, the blowing wind speed, the vertical wind direction, and the horizontal wind direction.
- the sensor 3 is an infrared sensor, and the sensor data 37 includes data on wall surface temperature, ceiling surface temperature, and floor surface temperature obtained from a thermal image of the infrared sensor.
- the load condition is the wall surface temperature, ceiling surface temperature, and floor surface temperature
- the blowout condition is the blowout temperature, the vertical direction and direction of the airflow at one blowout port provided in the indoor unit 22.
- the wind direction is left and right.
- the objects calculated in airflow analysis are variables representing the indoor environment such as temperature and wind speed.
- the target condition 135 an upper limit value and a lower limit value are set for each variable such as wind speed and temperature on a plane at a predetermined height in the room of the air-conditioned space.
- the driving state determination unit 42 selects a current state pattern that is a pattern that approximates the current driving state in the following manner.
- the operating state determining unit 42 acquires the on or off state, operating mode, blowing wind speed, vertical wind direction, and left/right wind direction of the air conditioner 2 from the air conditioning operating data 36, and determines the blowing conditions that match the obtained operating state of the air conditioner 2. is selected from the blowout conditions in the analysis conditions.
- the operating state determining unit 42 acquires the wall surface temperature, ceiling surface temperature, and floor surface temperature from the sensor data 37, and subtracts the floor surface temperature from the acquired ceiling surface temperature, thereby determining the ceiling surface temperature and the floor surface temperature. Find the temperature difference between the top and bottom, which is the temperature difference from the surface temperature. Further, regarding the load conditions in the analysis conditions, the operating state determining unit 42 subtracts the floor temperature from the ceiling temperature to obtain the upper and lower temperature difference, and calculates the upper and lower temperature difference and the wall temperature with the values obtained from the sensor data 37. Compare to determine the closest load condition.
- pattern data corresponding to the analysis conditions including the determined blowing conditions and load conditions is uniquely determined.
- the driving state determining unit 42 sets the uniquely determined pattern data as a current state pattern that is the estimated value of the current indoor environment.
- the driving state determining unit 42 extracts a candidate pattern, which is a pattern that is a candidate for an estimated value of the indoor environment when the blowing wind speed, vertical wind direction, and left/right wind direction are changed, from the current state pattern as follows. do.
- the operating state determining unit 42 refers to the air conditioning operating data 36 and selects a plurality of blowout conditions in which the on or off state of the air conditioner 2 matches the operating mode, and in which the blowing wind speed, vertical wind direction, and horizontal wind direction are different. .
- the operating state determining unit 42 selects a plurality of analysis conditions including a blowout condition that is the same as any of the selected blowout conditions and a load condition that is the same as the load condition determined in step ST21. is extracted from the analysis condition list 131.
- the driving state determining unit 42 sets a pattern corresponding to the extracted analysis condition as a candidate pattern. There may be one candidate pattern, but there may also be multiple candidate patterns.
- step ST23 the driving state determination unit 42 calculates an evaluation value for each of the current state pattern determined in step ST21 and the candidate pattern determined in step ST22.
- the evaluation value is calculated by calculating the percentage of the area included in the upper and lower limits of the preset range for each variable such as temperature and wind speed in the pattern data according to each manipulated variable, and calculating the percentage of the area included in the upper and lower limits of the preset range. Then, the weighting coefficients determined in steps ST41 to ST45 are multiplied to obtain a total value.
- the variable may include not only pattern data but also a function.
- a variable such as power consumption
- the power consumption is determined by inputting each manipulated variable into a function that can specify the power consumption according to the manipulated variable.
- the manipulated variable may be multiple parameters such as set temperature and wind direction, or may be a single parameter, and the number is not limited.
- evaluation value ⁇
- pattern data g temperature at 1.1 m above the floor
- function f power consumption
- ⁇ pattern data h
- wind speed above the floor + 1.1 m Calculate the evaluation value.
- each value of ⁇ , ⁇ , and ⁇ represents a weighting coefficient.
- the upper and lower limits (the upper and lower limits at which people feel comfortable) were obtained from pattern data A with a wind speed of 0 to 2 m/s and a temperature of 21 to 23 degrees Celsius, with a certain amount of operation. Assume that the indoor wind speed distribution is 40% between 0 and 1 m/s, 30% between 1 and 2 m/s, 20% between 2 and 3 m/s, and 10% between 3 m/s and above.
- the temperature distribution is 40% at 20-21 m/s, 30% at 21-22 m/s, 20% at 22-23 m/s, and 10% at 23 m/s.
- the operating state determination unit 42 acquires information on the temperature corresponding to the suction temperature from the analysis result or pattern data, and uses the difference value between the temperature acquired from the analysis result or pattern data and the measured value to obtain the analysis result or Correct the pattern data.
- this correction is reflected in the airflow control actually executed in the room, and the temperature in the room is corrected.
- errors caused by differences between analysis conditions and actual conditions are corrected, and highly accurate airflow control can be performed.
- the operating state determining unit 42 determines the operating state of the air conditioner 2 as follows.
- the driving state determining unit 42 does not change the driving state if all of the evaluation values of the plurality of candidate patterns calculated in step ST23 are lower than the evaluation value of the current state pattern.
- the operating state determination unit 42 sets the operating state of the air conditioner 2 corresponding to the blowing condition corresponding to the candidate pattern to the target operating state of the air conditioner 2. Decide on the value.
- the operating state determination unit 42 selects the candidate pattern with the highest evaluation value, and sets the air conditioner to the air conditioner corresponding to the blowout condition corresponding to the selected candidate pattern.
- the operating state of the air conditioner 2 is determined to be the target value of the operating state of the air conditioner 2. The operation by the driving state determining section 42 in step ST23 shown in FIG. 28 will be explained with reference to FIG. 29.
- FIG. 29 is a flow diagram showing an example of the operation procedure in step ST23 shown in FIG. 28.
- the driving state determining unit 42 selects a control mode from the control mode list 137 based on the sensor data 37 or data such as the current time.
- the driving state determining unit 42 uses the variable importance table 138 to obtain the importance of each variable based on the control mode selected in step ST41.
- the driving state determining unit 42 obtains the comfort level corresponding to the importance of each variable obtained in step ST42, based on the comfort level table 139.
- step ST44 the coefficient calculation unit 44 first calculates a comfort level function that satisfies the acquired comfort level or higher based on the comfort level corresponding to the importance of each variable acquired in step ST43 and the comfort level function 140 for each variable. 140, and in the comfort function 140 of each variable, a portion of the comfort function 140 having a comfort level greater than or equal to the acquired comfort level, and the upper and lower limit values of the variable at that time, Calculate the area value of the area surrounded by the X axis.
- step ST45 the weight coefficient of each variable is determined by converting a variable with a smaller area value into a larger weight as a coefficient and calculating the ratio.
- the air conditioning control device 1 accumulates the results of airflow analysis performed on the airflow analysis model 133 created based on the equipment and space information 132 and the analysis condition list 131 as pattern data.
- the air conditioning control device 1 selects a pattern that satisfies the target condition 135 from among the pattern data based on the measurement data 136 and executes the airflow control.
- a priority is assigned to each analysis condition in the analysis condition list 131, and the air conditioning control device 1 performs airflow analysis in the order of priority, so that the airflow analysis for the conditions with the highest priority is completed at an early stage. Airflow control can be started. In addition, after the start of airflow control, the air conditioning control device 1 continues airflow analysis using analysis conditions with low priority, thereby gradually accumulating various pattern data and improving the accuracy of airflow control.
- the model creation unit 141 performs machine learning using the measurement data 136 accumulated in the storage device 13 to perform airflow analysis so that the airflow analysis model 133 is adapted to the air-conditioned space.
- the model 133 may be updated. This further improves the accuracy of airflow analysis.
- the method for calculating the weighting coefficient for each evaluation item used to calculate the evaluation value for the airflow analysis result is clarified, and the correlation with user comfort is considered for each evaluation item.
- the present invention provides an air conditioning control device 1 that provides a basis regarding comfort to the weighting coefficient of each evaluation item.
- the air conditioning control device provided in the present disclosure calculates evaluation values for multiple evaluation items, the priority and importance of each evaluation item are determined based on user comfort rather than fixed values.
- the evaluation value can be calculated based on the optimal evaluation function that uniquely matches the state of the thermal environment and the user's preferences, resulting in optimal analysis results that always make the user comfortable. will be able to obtain.
- the weighting coefficient for each variable used is a fixed value based on the value under a finite representative indoor and outdoor environment.
- the indoor and outdoor environments are all different for each air-conditioned space, and in particular, differences in how easily a space gets warmed and cooled depend on environmental differences such as the shape of the air-conditioned space and the heat storage performance of the building. Since this greatly affects user comfort, evaluation of analysis results using weighting coefficients based on fixed values cannot take these differences into consideration, and there is a risk that user comfort cannot be guaranteed through airflow control.
- the air conditioning control device 1 of the first embodiment calculates the weighting coefficient for each variable in consideration of the fact that the user's perception of comfort is influenced by differences in the indoor and outdoor environments of each air-conditioned space. Make decisions on comfort grounds. Since the weighting coefficient for each air-conditioned space based on the basis of comfort is used to evaluate the airflow analysis results, airflow control can be performed to ensure the comfort of each air-conditioned space with higher accuracy.
- a priority is assigned to each of a plurality of analysis conditions, and airflow analysis is performed in order from the analysis conditions assigned with a high priority.
- Airflow control can be started at an early stage after analysis is completed. Since appropriate airflow control is performed early from the start of the air conditioner 2, a comfortable environment can be provided to the user quickly. Since airflow control suitable for the space to be air-conditioned is performed more quickly, unnecessary changes in the operating frequency of the compressor 51 are suppressed, and energy saving can be achieved.
- the air conditioning control device 1 of the first embodiment does not reduce the number of analysis conditions among multiple analysis conditions, but preferentially executes the airflow analysis of the analysis conditions with high priority. Start airflow control based on the analysis results. Since airflow analysis is performed under analysis conditions with high priority, loss of accuracy in airflow analysis is suppressed.
- the airflow analysis unit 142 performs airflow analysis using analysis conditions with low priority in parallel with airflow control, so that many analysis results are obtained over time. It is stored in the storage device 13. Therefore, the air conditioning control device 1 can perform detailed airflow control for the user with high precision using the analysis results of many analysis conditions stored in the storage device 13.
- the storage device 13 does not store and manage the results of airflow analysis as they are, but stores and manages pattern data indicating the distribution of the environment of the air-conditioned space. Therefore, the data size of the analysis result is compressed, and the storage capacity of the storage device 13 can be reduced. Even when there are many analysis conditions, the required storage capacity can be suppressed. As a result, according to the first embodiment, the calculation load and storage capacity can be reduced, and airflow control that takes into account the distribution of the thermal environment in the air-conditioned space can be started early.
- the air conditioning control device 1 determines a plurality of analysis conditions to which priorities are assigned, airflow analysis results for each analysis condition, and weighting coefficients used for evaluation values of the airflow analysis results. It has a storage device 13 that stores a plurality of data, and an arithmetic device 14 that controls the air conditioner 2.
- the storage device 13 stores pattern data 134 that expresses the tendency of the distribution of the environment in the air-conditioned space based on the results of airflow analysis using fewer variables than the analysis results, and variables that store the importance of each variable included in the pattern data 134.
- It has an importance level table 138, a comfort level table 139 in which comfort levels corresponding to the importance levels of each variable are stored, and a comfort level function 140 representing the correlation between each variable and the comfort level, and its graph.
- the arithmetic unit 14 includes an airflow analysis unit 142 that performs airflow analysis in order of analysis conditions starting from the highest priority among a plurality of analysis conditions, and an airflow analysis unit 142 that performs airflow analysis on the air conditioner 2 based on the generation state of the airflow analysis results by the airflow analysis unit 142.
- the airflow control possibility determining section 41 determines whether or not airflow control can be started, and each variable for calculating the evaluation value of the result of airflow analysis determined by the airflow control possibility determining section 41 that airflow control can be started. It has a coefficient calculation section 44 that determines a weighting coefficient, and an airflow control section 144 that determines the operating state of the air conditioner 2 based on the evaluation value of the result of airflow analysis.
- each The purpose of the present invention is to provide an air conditioning control device 1 that provides a basis regarding comfort to the weighting coefficient of the evaluation item.
- the air conditioning control device 1 when the air conditioning control device 1 provided in the present disclosure calculates evaluation values for a plurality of evaluation items, the priority order and importance level of each evaluation item are determined based on user comfort rather than fixed values. This allows users to make decisions freely based on their gender, and to calculate evaluation values based on the optimal evaluation function that uniquely matches the state of the thermal environment and the user's preferences, resulting in optimal analysis that always makes the user comfortable. You will be able to get the results.
- Embodiment 2 Next, the air conditioning control device 1 according to the second embodiment will be explained.
- the air conditioner 2 controls the airflow within the space to be air conditioned.
- the air conditioning control device 1 of the second embodiment controls the airflow in the space to be air-conditioned using the air conditioner 2, and at the same time controls the ventilation amount using the ventilation device 5.
- ventilation amount control is also performed by the ventilation device 5, and both the thermal environment distribution and the air quality distribution of the air-conditioned space are taken into consideration at the same time.
- FIG. 30 is a configuration diagram showing an example of an air conditioning system including the air conditioning control device 1 according to the second embodiment.
- the same reference numerals as in FIG. 1 indicate the same or corresponding parts.
- the air conditioning control device 1 in the air conditioning system of the second embodiment is connected to the air conditioner 2, the sensor 3, and the ventilation device 5 via the network 4, and the ventilation device 5 has a controller 71.
- the controller 71 is a device that allows a user or administrator to turn the ventilation device 5 on and off, and to manually change settings such as the ventilation air volume. Controller 71 may be a remote controller.
- FIG. 31 is a functional configuration diagram of the ventilation device 5 shown in FIG. 30.
- the ventilation device 5 includes an air supply fan 72, an exhaust fan 73, a total heat exchanger 74, a control device 75, an outdoor temperature sensor 76, an indoor temperature sensor 77, and an indoor humidity sensor. 78.
- the left side of the ventilation system 5 is outside the building, and the right side is inside the building.
- the indoor temperature sensor 77 and the indoor humidity sensor 78 may be an integrated temperature and humidity sensor.
- the outdoor temperature sensor 76, the indoor temperature sensor 77, and the indoor humidity sensor 78 may be included in the sensor 3.
- the flow of air flowing through the ventilation device 5 will be explained using FIG. 31.
- air from outside the building passes through the total heat exchanger 74 and is taken into the room.
- the air entering the ventilation device 5 from outside the building will be referred to as “outside air” and the air taken into the room will be referred to as “supply air.”
- the indoor air passes through the total heat exchanger 74 and is discharged outside the building.
- the air entering the ventilation device 5 from the room will be referred to as "return air” and the air discharged outside the building will be referred to as "exhaust air”.
- the total heat exchanger 74 heat is exchanged between outside air and return air, and supply air whose temperature and humidity have been adjusted is supplied indoors.
- outside air is taken directly into the room without passing through the total heat exchanger 74.
- a bypass path is provided for taking in outside air without passing through the total heat exchanger 74.
- the path passing through the total heat exchanger 74 and the bypass path are switched by a damper (not shown).
- the air supply fan 72 is a fan for taking air from outside the building into the room. In this example, the air supply fan 72 is placed closer to the room than the total heat exchanger 74.
- the exhaust fan 73 is a fan for exhausting indoor air to the outside of the building. In this example, the exhaust fan 73 is placed outside the total heat exchanger 74.
- FIG. 32 is a diagram showing an example of the configuration of the total heat exchanger 74.
- the left side is outdoors and the right side is indoors. Outside air enters the total heat exchanger 74 from outside the room and is supplied into the room, and return air enters the total heat exchanger 74 from the room and is exhausted outside.
- the total heat exchanger 74 exchanges total heat between the outside air and the return air.
- the total heat exchanger 74 is formed into a square column shape.
- the partition plates 79 which are flat plate members, and the spacing plates 80, which are corrugated members, are alternately stacked to form an outside air flow path for flowing outside air to one of the adjacent side surfaces. , an exhaust flow path for flowing exhaust gas is formed on the other side of the adjacent side surface.
- the flat plate member and the wavy member are made of a moisture-permeable material (for example, paper), allowing moisture to move between the supply air and the exhaust air. This allows the total heat exchanger 74 to exchange latent heat in addition to sensible heat exchange.
- the total heat exchanger 74 In the total heat exchanger 74, the outside air taken in and the indoor air exhausted are completely separated by a partition plate 79. Further, the wavy portion of the spacer plate 80 acts as a bank, so that the supply air path and the exhaust air path can be completely separated. Further, by making the spacer plate 80 a corrugated member, the strength of the total heat exchanger 74 is maintained. Further, temperature and humidity are exchanged between the supply air and the exhaust air flowing on the front and back sides of the partition plate 79. For example, it is preferable to use total heat exchange paper with high heat exchange efficiency and excellent moisture permeability for the partition plate 79, and to use corrugated paper with a honeycomb structure for the spacer plate 80.
- FIG. 33 is a block diagram showing an example of the configuration of the air conditioning control device 1 according to the second embodiment.
- the measurement data 136 includes the ventilation operation data 38.
- the operating state determining section 42 includes an air quality determining section 45.
- an analysis condition list 131, pattern data 134, target conditions 135, measurement data 136, variable importance table 138, comfort table 139, and comfort function 140 are partially different from those in the first embodiment.
- the analysis condition list 131 includes not only the blowout conditions related to the operating state of the air conditioner 2 but also the blowout conditions related to the operating state of the ventilation device 5.
- the operating state which is the operation amount of the ventilation device 5, is, for example, the ventilation air volume.
- the ventilation air volume refers to the air volume that is a general term for the air volume supplied and the air volume exhausted, but if the air volume supplied and the air volume exhausted are different values, each of them is referred to as the air volume, not the ventilation air volume. may also be referred to as supply air volume and exhaust air volume.
- FIG. 34 is an image diagram showing an example of blowout conditions related to the operating states of the air conditioner 2 and the ventilation device 5 among the analysis conditions.
- the ventilation air volume stored in FIG. 34 may be stored by distinguishing between the supply air volume and the exhaust air volume, or may be stored as the output of the air supply fan 72 and the exhaust fan 73, respectively. Further, an identifier indicating whether heat exchange is performed between outside air and return air using the total heat exchanger 74 may be included. Further, an identifier indicating that outside air is taken in through a bypass route instead of through the total heat exchanger 74 may be included.
- the analysis condition list 131 includes both the blowout conditions of the air conditioner 2 and the ventilation device 5 shown in FIG. Conditions can be set.
- the pattern data 134 includes at least one variable related to the air quality in the air-conditioned space in addition to the variables shown in the first embodiment.
- Variables related to air quality include, for example, CO2 concentration, air age, ventilation efficiency, ventilation frequency, ventilation volume, other indicators expressing the ventilation volume relative to the required ventilation volume, and the concentration of other pollutants. be.
- FIG. 35 is an image diagram showing an example of the pattern data shown in FIG. 33, and is an example when CO2 concentration is used as a variable related to air quality.
- the variable importance table 138 since the pattern data 134 includes at least one variable related to air quality, the variable importance table 138 also includes the same variable related to air quality. Therefore, in the second embodiment, the comfort level table 139 includes the comfort level corresponding to the importance level of at least one air quality-related variable included in the variable importance level table 138.
- the comfort level function 140 includes a correlation function between variables related to air quality included in the pattern data 134 and the user's comfort level, and a graph thereof.
- 34 is an image diagram showing an example of the comfort level function 140 shown in FIG. 33.
- FIG. 36 is an example of the comfort level function 140 when CO2 concentration is plotted on the horizontal axis as a variable related to air quality.
- the target conditions 135 include, in addition to the setting conditions shown in Embodiment 1, the upper and lower limits of the allowable range that at least one air quality-related variable in the air-conditioned space should satisfy. I'm here.
- the measurement data 136 includes ventilation operation data 38 in addition to the air conditioning operation data 36 and sensor data 37 shown in the first embodiment.
- the ventilation operation data 38 is, for example, information regarding operating conditions such as set air volume.
- the operating state determining section 42 includes an air quality determining section 45.
- the air quality determination unit 45 determines whether the representative value of the air quality related variable included in the pattern data meets the target condition 135 for all the pattern data for which the airflow control possibility determination unit 41 has determined that airflow control can be started. It is determined whether the upper and lower limits of the set tolerance range are satisfied. The air quality determination unit 45 extracts pattern data in which variables related to air quality fall within acceptable ranges as candidate patterns, which are candidate pattern data.
- the air quality determining unit 45 determines whether the air quality variables specified from the pattern data satisfy the target values, and calculates the evaluation value for the pattern data in which the air quality variables are within the allowable range. Extract as a candidate pattern
- the representative value of the variable related to air quality included in the pattern data for example, there is a method of using the intermediate value of the variable in a small area included in the pattern data where the incidence rate is the highest.
- the method using intermediate values taking as an example the pattern data "pattern001" in which the CO2 concentration shown in FIG.
- the representative value of the CO2 concentration of "pattern001" is 525 ppm, which is the intermediate value between 500 and 550.
- the representative values of variables related to air quality included in the pattern data are weighted by the occurrence rate by calculating the product of the decimal value of the occurrence rate included in the pattern data and the value of the variable category.
- There is a method of calculating the average value with a method of using the maximum value, etc., and other methods may also be used.
- the result is 549.7 ppm. Representative values can be obtained.
- the air conditioning control device 1 of the second embodiment performs a process different from ST21 to ST24, which is a detailed explanation of the process of ST15 in the first embodiment, but performs the same process as the first embodiment for other operations. conduct. Therefore, in the following, a flow corresponding to ST21 to ST24, which is a detailed explanation of the process of ST15 according to the first embodiment, of the operation of the air conditioning control device 1 according to the second embodiment will be described.
- FIG. 37 is a flow diagram illustrating an example of the operation procedure in the second embodiment of step ST15 illustrated in FIG. 26. With reference to FIG. 37, pattern selection processing by the driving state determination unit 42 according to the second embodiment will be described.
- the operating state determination unit 42 selects a current state pattern that is a pattern that approximates the current operating states of the air conditioner 2 and ventilation device 5 in the following manner.
- the operating state determining unit 42 includes air conditioning operating data 36 including the on or off state of the air conditioner 2, the operating mode, the blowing wind speed, the vertical wind direction, and the left and right wind direction, the on or off state of the ventilation device 5, and the ventilation air volume.
- the ventilation operation data 38 are acquired, and the blowout conditions that match the acquired operating states of the air conditioner 2 and the ventilation device 5 are selected from the blowout conditions in the analysis condition list 131.
- the operating state determining unit 42 acquires the wall surface temperature, ceiling surface temperature, and floor surface temperature from the sensor data 37, and subtracts the floor surface temperature from the acquired ceiling surface temperature, thereby determining the ceiling surface temperature and the floor surface temperature. Find the temperature difference between the top and bottom, which is the temperature difference from the surface temperature.
- the operating state determining unit 42 subtracts the floor temperature from the ceiling temperature to obtain the upper and lower temperature difference, and calculates the upper and lower temperature difference and the wall temperature with the values obtained from the sensor data 37. Compare to determine the closest load condition.
- pattern data corresponding to the analysis conditions including the determined blowing conditions and load conditions is uniquely determined.
- the driving state determining unit 42 sets the uniquely determined pattern data as a current state pattern that is the estimated value of the current indoor environment.
- step ST52 the operating state determining unit 42 estimates the indoor environment when changing the blowing wind speed, vertical wind direction, and horizontal wind direction of the air conditioner 2 and the ventilation air volume of the ventilation device 5 from the current state pattern as follows.
- a candidate pattern which is a pattern that can be used as a value, is extracted.
- the operating state determining unit 42 refers to the air conditioning operating data 36 and selects a plurality of air outlet conditions in which the on or off state of the air conditioner 2 matches the operating mode, and the air outlet speeds, vertical wind directions, and left and right wind directions are different. select.
- the operating state determining unit 42 refers to the ventilation operating data 38 and further selects a plurality of blowout conditions in which the on or off state of the ventilation device 5 matches and the ventilation air volume differs.
- the operating state determining unit 42 selects a plurality of analysis conditions including a blowout condition that is the same as any of the selected blowout conditions and a load condition that is the same as the load condition determined in step ST21. is extracted from the analysis condition list 131.
- the operating state determination section 42 extracts a pattern corresponding to the extracted analysis condition and outputs it to the air quality determination section 45 .
- step ST53 the air quality determining unit 45 determines that, for each of the patterns extracted by the operating state determining unit 42 in step ST52, the representative value of the air quality-related variable included in the pattern data is within the tolerance range set in the target condition 135. It is determined whether or not it exists.
- the air quality determining unit 45 selects as candidate patterns patterns in which the representative values of variables related to air quality are determined to fall within these ranges. There may be one candidate pattern, but there may also be multiple candidate patterns.
- step ST54 the driving state determination unit 42 calculates an evaluation value for each of the current state pattern determined in step ST51 and the candidate pattern determined in step ST53.
- the evaluation value is calculated by calculating the percentage of the area included in the target value range set in advance for variables such as temperature and wind speed and at least one air quality related variable in the pattern data, and calculating the percentage of the area included in the range of the target value set in advance for each variable such as temperature and wind speed in the pattern data, The value is multiplied by the weighting coefficient and summed.
- step ST55 the operating state determining unit 42 determines the operating states of the air conditioner 2 and the ventilation device 5 as follows.
- the driving state determination unit 42 does not change the driving state when all of the evaluation values of the plurality of candidate patterns calculated in step ST54 are lower than the evaluation value of the current state pattern.
- the operating state determination unit 42 determines the operating state of the air conditioner 2 and the ventilation device 5 corresponding to the blowout condition corresponding to the candidate pattern. and the target value for the operating state of the ventilation system 5 is determined. If there are multiple candidate patterns with higher evaluation values than the evaluation value of the current state pattern, the operating state determination unit 42 selects the candidate pattern with the highest evaluation value, and sets the air conditioner to the air conditioner corresponding to the blowout condition corresponding to the selected candidate pattern. The operating states of the air conditioner 2 and the ventilation device 5 are determined to be the target operating states of the air conditioner 2 and the ventilation device 5.
- the measurement data 136 includes the ventilation operation data 38 that is information regarding the operating state of the ventilation device 5, and further, the operating state determination unit 42 is included in the pattern data. It has an air quality determination section 45 that determines representative values of variables related to air quality. Therefore, the air conditioning control device 1 of the second embodiment can improve comfort in the air-conditioned space and ensure healthy air quality with high accuracy, and compared to the first embodiment, the air conditioning control device 1 can It is possible to provide air-conditioned space with even higher value.
- Embodiment 3 Next, the air conditioning control device 1 of Embodiment 3 will be explained.
- the air conditioning control device 1 of the second embodiment simultaneously performs airflow control by the air conditioner 2 and ventilation amount control by the ventilation device 5 for a space to be air-conditioned.
- the air conditioning control device 1 of Embodiment 3 uses the comfort function 140 used to evaluate pattern data for determining the operating state of the air conditioner 2 and the ventilation device 5 to determine the operating state of the air conditioner 2 and the ventilation device 5.
- the ventilation system 5 is constantly and automatically improved based on feedback such as the operation history of the ventilation system 5.
- the unique weighting coefficient for each air-conditioned space can be adjusted without requiring the user to update the variable importance table 138 and the comfort level table 139 in the first and second embodiments. It becomes possible to decide. Therefore, in the third embodiment, it is possible to simultaneously improve comfort in the air-conditioned space and ensure healthy air quality with a high degree of precision while maximally matching the characteristics of the air-conditioning space and the user's preferences. Therefore, compared to the second embodiment, it is possible to provide the user with an air-conditioned space of even higher value.
- FIG. 38 is a block diagram showing an example of the configuration of the air conditioning control device 1 according to the third embodiment.
- the same or equivalent parts are denoted by the same reference numerals as in FIG. 33.
- the measurement data 136 has a change history table 39, and the arithmetic device 14 further includes a function improvement unit 145.
- the change history table 39 includes a history of changes to set values such as the set temperature, air volume, and wind direction of the indoor unit 22 that have been input by multiple users in the air-conditioned space via the controller 23 of the air conditioner 2, and the change history of the set values of the indoor unit 22, such as the set temperature, air volume, and wind direction, as well as the change history of the set values of the indoor unit 22, which have been input by multiple users in the air-conditioned space via the controller 23 of the air conditioner 2, and This is a table that stores the change history of setting values such as ventilation air volume of the ventilation device 5 inputted via the controller 71 of the ventilation device 5.
- the change history table 39 acquires the history of changes to setting values by the user from the receiving device 11 at regular time intervals, and stores the date and time of changes made by the user, the changed value of the setting value, and the current setting value.
- FIG. 39 is an example of the change history table 39 shown in FIG. 38.
- the air conditioner 2 has one indoor unit 22, and the number of air outlets provided in the indoor unit 22 is one. Moreover, the number of ventilation devices 5 is one.
- the change history table 39 includes at least the date and time when the setting values of the indoor unit 22 and the ventilation device 5 were changed, the changed setting values, and the current setting values.
- the change history table 39 stores the change history of setting values, and is overwritten at regular time intervals.
- the fixed time interval is, for example, 5 minutes when storing a short-term change history, and is, for example, 6 months, which is the period during which cooling and heating are switched, when storing a long-term change history.
- the fixed time interval may be set to a predetermined value, or may be changed by any user within or outside the air-conditioned space.
- the change history of the setting values of the indoor unit 22 inputted through the controller 71 of the ventilation apparatus 5 and the setting values of the ventilation apparatus 5 inputted via the controller 71 of the ventilation apparatus 5 are stored in ascending order for each time. Note that values including parentheses "()" indicate that no changes have been made by the user, and represent the latest setting values of the indoor unit 22 and ventilation device 5.
- the operating state determining unit 42 outputs the determined operating states of the air conditioner 2 and the ventilation device 5 to the control command converting unit 43, and at the same time changes the operating states of the air conditioner 2 and the ventilation device 5 to air conditioning operation.
- the data 36 and the ventilation operation data 38 are stored as the latest operating states of the air conditioner 2 and the ventilation device 5. Further, the driving state determining unit 42 outputs the pattern data with the highest evaluation value to the function improving unit 145, which will be described below.
- the function improvement unit 145 updates the change history table 39, the current setting values of the air conditioner 2 and the ventilation device 5 stored in the air conditioning operation data 36 and the ventilation operation data 38, and the evaluation value output by the operation state determination unit 42. Based on the highest pattern data, the correlation function with comfort for each variable stored in the comfort function 140 and its graph are improved. Then, the function improvement unit 145 overwrites and stores the improved comfort level function 140 in the storage device 13 as a new comfort level function 140.
- the function improvement unit 145 acquires the change history of set values such as the set temperature and air volume of the indoor unit 22 and the ventilation system 5 stored in the change history table 39 at regular time intervals, and Calculate the representative setting value within.
- the fixed time interval is, for example, 5 minutes.
- the representative set value of the set value within a certain period of time is, for example, a known index obtained by a statistical calculation method such as an average value or a median value.
- a statistical calculation method such as an average value or a median value.
- the function improvement unit 145 stores them in the air conditioning operation data 36 and the ventilation operation data 38.
- the representative setting value is calculated by comparing the setting value in the character string and the air volume value, and converting the setting value in the character string to the air volume value.
- the function improvement unit 145 obtains the current setting values of the air conditioner 2 and the ventilation device 5 stored in the air conditioning operation data 36 and ventilation operation data 38.
- the current set temperature is 25.0°C.
- the function improvement unit 145 compares the representative setting value within a certain period of time with the obtained current setting value, and obtains the magnitude relationship between them. Then, the function improvement unit 145 improves the comfort level function 140 using the current set value as a reference value so that the comfort level on the comfort level function 140 that is equal to or higher than the reference value or lower than the reference value increases or decreases.
- the function improvement unit 145 determines that the comfort level of the comfort function 140 at "temperature 1.1 m above the floor" during cooling is constant at 25.0°C or lower, with the current set temperature of 25.0°C as a reference. Improve it so that the value decreases.
- the fixed value is, for example, 5%.
- the representative setting value (25.5° C.) provides the most comfort.
- the current set temperature is 25.0°C. Considering that we are talking about air conditioning, ⁇ 25.0°C has been changed to 25.5°C'' is the same as ⁇ users feel cold at 25.0°C.'' think.
- the temperature at which the comfort level should be lowered is "25 degrees Celsius or less,” which is the sum of 25.0 degrees Celsius and temperatures lower than 25.0 degrees Celsius.
- the function improvement unit 145 determines whether the comfort level should be lowered, a high temperature or a low temperature, according to the magnitude relationship between the representative set value and the current set value within a certain period of time. judge.
- the representative setting value (25.5°C) within a certain period of time is higher than the current setting value (25.0°C), so the user wants to set a higher temperature. For reasons of feeling comfortable, the comfort level was lowered by a certain value for temperatures lower than the current set value.
- the representative setting value within a certain period of time is 24.5 degrees Celsius
- the representative setting value (24.5 degrees Celsius) within a certain period of time is the current setting value. (25.0° C.)
- a method for determining the amount of decrease in comfort level for example, there is a method in which the corresponding amount of decrease is determined in advance according to the difference between the current setting value and the representative setting value of the setting value. For example, if the difference is 1°C or more, it is determined to be 10%, and if the difference is less than 1°C, it is determined to be 5%. In this case, in the above example, the difference between 25.0°C and 25.5°C is 0.5°C, so the amount of decrease in comfort level is 5%.
- FIG. 40 is an example of the comfort level function 140 improved by the function improvement unit 145 shown in FIG. 38.
- FIG. 40 shows the changed "temperature 1.1 m above the floor” during cooling when the function improvement unit 145 changes the comfort function 140 at "temperature 1.1 m above the floor” during cooling according to the above example. It is a figure which shows an example of the comfort level function 140 in .
- the comfort value below 24.5° C. is decreased by 5% overall.
- the comfort level when the "temperature 1.1 m above the floor" is higher than 24.5°C becomes relatively higher than the comfort level when it is 24.5°C or lower.
- the comfort function 140 based on the average value of the changed setting values, it is possible to create a unique comfort function 140 for the air-conditioned space in which the setting values have been changed.
- the function improvement unit 145 updates the improved comfort function 140 as a new comfort function 140 and stores it in the storage device 13.
- the function improvement unit 145 shows how to improve the comfort function 140 for "temperature 1.1m above the floor” during cooling, but the comfort function 140 can be improved in the same way for other variables as well. do. For example, if the wind speed is 1.1 m above the floor, the function improvement unit 145 compares the air volume value with the character string setting value stored in the air conditioning operation data 36 and ventilation operation data 38, and compares the current setting value with the air volume value. The average value of the set values after the change is compared, and the comfort level function 140 at "wind speed of 1.1 m above the floor” is calculated using the current set value of "wind speed of 1.1 m above the floor” of the pattern data output last as the reference value.
- the comfort level function 140 is improved so that the comfort level above or below the reference value increases or decreases.
- the function improvement unit 145 can improve the comfort level function 140 with respect to other variables as well.
- FIG. 41 is a flow diagram illustrating an example of the operation procedure of the function improvement unit 145 according to the third embodiment.
- the improvement processing of the comfort level function 140 by the function improvement unit 145 according to the third embodiment will be described. Note that in the third embodiment, the same processing as in the second embodiment is performed for operations that do not involve the function improvement unit 145.
- the trigger for starting the flow shown in FIG. 41 is, for example, a signal indicating that the set values such as the set temperature, air volume, and wind direction of the indoor unit 22 have been changed, or a signal indicating that the set values such as the ventilation air volume of the ventilation device 5 have been changed.
- the air conditioning control device 1 receives a signal indicating this from the controller 23 of the air conditioner 2 or the controller 71 of the ventilation device 5.
- step ST61 the function improvement unit 145 acquires the change history of the setting values of the indoor unit 22 and the ventilation system 5 stored in the change history table 39 at regular time intervals, and acquires the change history of the setting values of the indoor unit 22 and the ventilation system 5 stored in the change history table 39, and Calculate the average value, which is the representative setting value.
- step ST62 the function improvement unit 145 acquires the current setting values of the air conditioner 2 and ventilation device 5 stored in the air conditioning operation data 36 and ventilation operation data 38.
- step ST63 the function improving unit 145 refers to the pattern data last output by the driving state determining unit 42 and calculates representative setting values for each variable.
- step ST64 the function improvement unit 145 compares the average value of the changed setting values calculated in step ST61 with the current setting value obtained in step ST62. Then, based on the comparison results, the function improvement unit 145 sets the comfort level of the current setting value of the variable of the pattern data output last calculated in step ST63 as the reference value, and sets the reference value on the comfort level function 140.
- the comfort level function 140 is improved so that the comfort level above or below the reference value increases or decreases.
- step ST65 the function improvement unit 145 improves the comfort function 140, updates the improved comfort function 140 as a new comfort function 140, and stores it in the storage device 13.
- the correction value is a pattern in which the amount of decrease corresponding to the difference is defined in advance, but the correction value is not limited to this method, and for example, the correction value may be obtained by obtaining the discomfort index.
- a method of specifying a correction value using a discomfort index will also be described.
- metabolic rate, amount of work, amount of clothing, temperature, wind speed, and humidity are input values for the environment, and a discomfort index is calculated, which is an index of what percentage of people feel uncomfortable with respect to the input values.
- the input values are metabolic rate 1.1met (64.02W/m ⁇ 2), mechanical work load 0.0W/m ⁇ 2, amount of clothing 0.3 cloi (basic thermal resistance of clothing), average wind speed 0.
- the discomfort index is 10.4931 when the room temperature is 25.0°C. In other words, 10.5% of people feel uncomfortable.
- the discomfort index of is also calculated in the same way.
- the discomfort index is 7.13173, meaning that 7.1% of people feel uncomfortable. Since the discomfort index is lower for room temperature 25.5°C, it can be seen that more people feel more comfortable at 25.5°C than at 25.0°C.
- the correction amount at this time is "-7.1%”. Therefore, in this case, the method for improving the comfort function 140 is to reduce the amount of decrease in the comfort function 140 by 7.1% (decrease by 7.1%). Based on the idea that comfort is definitely uncomfortable, the comfort value below (or above) the current set value is corrected according to the correction amount based on the discomfort index obtained from the representative value of the set value as the correct value. .
- the pattern data used for evaluating the operating state of the air conditioner 2 that performs airflow control and the operating state of the ventilation device 5 that performs ventilation amount control shown in the second embodiment is used. Processing is performed to constantly improve the comfort level function 140 based on the operation history of a plurality of users. As a result, it is possible to simultaneously improve comfort in the air-conditioned space and ensure healthy air quality while maximally adapting to the characteristics of the air-conditioned space and the user's preferences. Compared to the above, it is possible to provide the user with an air-conditioned space with higher precision and higher value.
- the comfort function 140 is improved based on feedback such as the user's operation history, so the ideal function for each air-conditioned space can be The weighting coefficient for each variable can be automatically optimized.
- Air conditioning control device 2: Air conditioner, 3, 3-1 to 3-n: Sensor, 4: Network, 5: Ventilation device, 11: Receiving device, 12: Transmitting device, 13: Storage device, 14: Computation Device, 21: Outdoor unit, 22: Indoor unit, 23: Controller, 36: Air conditioning operation data, 37: Sensor data, 38: Ventilation operation data, 39: Change history table, 41: Airflow control possibility determination unit, 42: Operation State determination unit, 43: Control command conversion unit, 44: Coefficient calculation unit, 45: Air quality determination unit, 50: Refrigerant circuit, 51: Compressor, 52: Four-way valve, 53: Heat source side heat exchanger, 54: Throttle Device, 55: Load side heat exchanger, 57: Outdoor fan, 58: Indoor fan, 59: Wind direction adjustment section, 61: Left and right flaps, 62: Upper and lower flaps, 71: Controller, 72: Air supply fan, 73: Exhaust fan , 74: total heat exchanger, 75: control device, 76
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Abstract
Description
本開示の空調制御装置1の実施の形態について、図面を参照しながら説明する。
次に、実施の形態2の空調制御装置1について説明する。実施の形態1の空調制御装置1は、空調対象空間内の気流制御を空調機2によって行うものあった。実施の形態2の空調制御装置1は、空調機2によって空調対象空間に対する気流制御を行うと同時に、換気装置5による換気量制御も行う。
次に、実施の形態3の空調制御装置1について説明する。実施の形態2の空調制御装置1は、空調対象空間に対して、空調機2による気流制御と換気装置5による換気量制御を同時に行うものであった。実施の形態3の空調制御装置1は、空調機2および換気装置5の運転状態を決定するためのパターンデータの評価に用いる快適度関数140を、空調対象空間内の複数のユーザによる室内機22および換気装置5の操作履歴等のフィードバックに基づいて常に自動的に改良し続けるものである。
ここで、代表設定値(25.5℃)が最も快適になることがわかっている。そしてこのときの、現在の設定温度は25.0℃である。冷房時の話であることを踏まえると、「25.0℃が25.5℃に変更された」ということは、「ユーザは25.0℃だと寒いと感じている」ということと同義と考える。
Claims (9)
- 制御モードごとに、空調対象空間の環境を表す各変数がどの重要度になるかを記憶する変数重要度テーブルと、
前記重要度ごとに、前記各変数の快適度を記憶する快適度テーブルと、
前記各変数の値と前記快適度との関係性を定義する快適度関数と、前記変数重要度テーブルと、前記快適度テーブルとから特定される前記制御モードに対応する前記変数の前記重要度に対応する前記快適度に基づいて、各変数の重みづけ係数を算出する係数演算部と、
算出された前記重みづけ係数と操作量に対応する前記各変数とに基づいて評価値を算出する評価値算出部と、
前記評価値が高い前記操作量を空調装置の操作量として決定する運転状態決定部と、
を備えることを特徴とする空調制御装置。 - 前記係数演算部は、前記快適度関数において、前記重要度で特定される前記快適度以上になる面積の大きさに基づいて前記各変数の重みづけ係数を算出すること
を特徴とする請求項1に記載の空調制御装置。 - 前記係数演算部は、前記面積の大きさが小さいほど前記各変数の重みづけ係数を大きくして算出すること
を特徴とする請求項2に記載の空調制御装置。 - 前記評価値算出部は、前記各変数と前記各変数に対応する重みづけ係数を掛け合わせ合算することで前記評価値を算出する
ことを特徴とする請求項1から請求項3のいずれか1項に記載の空調制御装置。 - 気流解析の結果から前記空調対象空間の環境の分布の傾向を解析結果よりも少ないデータで表すパターンデータとを備え、
前記変数は前記パターンデータから特定される変数を含むこと
を特徴とする請求項1から請求項4のいずれか1項に記載の空調制御装置。 - 前記パターンデータは空気質に関する変数を含み、
前記操作量が換気装置の操作量を含み、
前記パターンデータから特定される前記空気質に関する変数が目標値を満たしているか否かを判定し、前記空気質に関する変数が許容範囲内に収まっている前記パターンデータを、前記評価値を算出する候補パターンとして抽出する空気質判定部と、
を特徴とする請求項1から請求項5のいずれか1項に記載の空調制御装置。 - 設定値の変更履歴を記憶する変更履歴テーブルと、
前記変更履歴テーブルの一定期間の設定値から算出される代表設定値と、現在の設定値に基づいて、前記快適度関数の快適度を前記現在の設定値を基準として、所定量補正する関数改良と、
を備えることを特徴とする請求項1から請求項6のいずれか1項に記載の空調制御装置。 - 前記関数改良部は、前記代表設定値と現在の設定値とを比較した結果、前記代表設定値の方が快適な場合に、前記快適度関数を補正する
ことを特徴とする請求項7に記載の空調制御装置。 - 制御モードごとに、空調対象空間の環境を表す各変数がどの重要度になるかを変数重要度テーブルに記憶するステップと、
前記重要度ごとに、前記各変数の快適度を快適度テーブルに記憶するステップと、
前記各変数の値と前記快適度との関係性を定義する快適度関数と、前記変数重要度テーブルと、前記快適度テーブルとから特定される前記制御モードに対応する前記変数の前記重要度に対応する前記快適度に基づいて、各変数の重みづけ係数を算出するステップと、
算出された前記重みづけ係数と操作量に対応する前記各変数とに基づいて評価値を算出するステップと、
前記評価値が高い前記操作量を空調装置の操作量として決定する運転状態決定部と、
を備えることを特徴とする空調制御方法。
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| PCT/JP2022/015944 WO2023188096A1 (ja) | 2022-03-30 | 2022-03-30 | 空調制御装置および空調制御方法 |
| CN202280094159.7A CN118946769A (zh) | 2022-03-30 | 2022-03-30 | 空调控制装置及空调控制方法 |
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| KR102911476B1 (ko) * | 2024-09-02 | 2026-01-12 | 중앙대학교 산학협력단 | 다수의 재실자의 활동량을 반영한 pmv 기반 실내환경제어 방법 및 시스템 |
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|---|---|---|---|---|
| KR102911476B1 (ko) * | 2024-09-02 | 2026-01-12 | 중앙대학교 산학협력단 | 다수의 재실자의 활동량을 반영한 pmv 기반 실내환경제어 방법 및 시스템 |
| CN120403054A (zh) * | 2025-04-28 | 2025-08-01 | 国网安徽省电力有限公司宿州市城郊供电公司 | 一种变电站空调智能控制系统及方法 |
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| Publication number | Publication date |
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| EP4502483A1 (en) | 2025-02-05 |
| JPWO2023188096A1 (ja) | 2023-10-05 |
| CN118946769A (zh) | 2024-11-12 |
| JP7637861B2 (ja) | 2025-03-03 |
| EP4502483A4 (en) | 2025-05-07 |
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