CN114502894A - Control device for air conditioner, control method for air conditioner, and program - Google Patents

Control device for air conditioner, control method for air conditioner, and program Download PDF

Info

Publication number
CN114502894A
CN114502894A CN201980101125.4A CN201980101125A CN114502894A CN 114502894 A CN114502894 A CN 114502894A CN 201980101125 A CN201980101125 A CN 201980101125A CN 114502894 A CN114502894 A CN 114502894A
Authority
CN
China
Prior art keywords
temperature
unit
air
indoor
room
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201980101125.4A
Other languages
Chinese (zh)
Other versions
CN114502894B (en
Inventor
池田孟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN114502894A publication Critical patent/CN114502894A/en
Application granted granted Critical
Publication of CN114502894B publication Critical patent/CN114502894B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps

Abstract

A control device (1A) of an air conditioner is provided with: a parameter determination unit (10) that determines each parameter; a representative temperature estimation unit (20) which estimates a representative temperature representing the indoor temperature when the first time has elapsed since the air conditioning of the room by the wind at the temperature determined by the parameter determination unit, using a thermal energy model that estimates the indoor temperature from the thermal energy in the room; an indoor temperature distribution estimation unit (30) that estimates an indoor temperature distribution using a fluid model that estimates temperatures at a plurality of locations in a room from the flow of air in the room and the heat energy of the air; and an air conditioning condition adjustment unit (40) that adjusts the air conditioning conditions of the indoor unit and the outdoor unit.

Description

Control device for air conditioner, control method for air conditioner, and program
Technical Field
The present invention relates to a control device for an air conditioner, a control method for an air conditioner, and a program.
Background
As a control device of the air conditioning apparatus, there are the following devices: a change in the indoor temperature when the air conditioner is operated is estimated, and the operation of the air conditioner is controlled based on the estimation result.
For example, patent literature 1 discloses a control device for a hot water heater, which estimates a temperature at which a heat pump type hot water heater heats a house using a thermal energy model of the house and determines a control parameter of the hot water heater based on the estimated temperature.
Patent document 2 discloses an air conditioner control device that estimates a temperature of a target point in a room when air is conditioned by an air conditioner using a fluid model indicating a flow of air in the room, and controls the air conditioner based on the estimated temperature.
Documents of the prior art
Patent document
Patent document 1: international publication No. 2016/035121
Patent document 2: japanese laid-open patent publication No. 2018-109494
Disclosure of Invention
In order to improve user comfort, it is desirable that the control device of the air conditioner accurately estimate an accurate indoor temperature in a short time to accurately perform air conditioning.
However, the control device described in patent document 1 only estimates the temperature when it is assumed that the entire indoor space has the same temperature. Therefore, the indoor temperature distribution cannot be estimated. As a result, it is difficult to accurately perform air conditioning.
In addition, the control device described in patent document 2 can predict an accurate temperature distribution because it obtains the flow of air in the room according to a fluid model, but takes a long time to calculate, and is not practical.
The present invention has been made to solve the above-described problems, and an object thereof is to provide a control device for an air conditioner, a control method for an air conditioner, and a program that can estimate an accurate indoor temperature in a short time to perform air conditioning.
The control device of the air conditioner of the invention is the following control device of the air conditioner: the air conditioner includes an indoor unit, an indoor thermometer, an outdoor unit, and an outdoor thermometer, and the indoor unit and the outdoor unit operate under air conditioning conditions based on a set temperature, a set air volume, and a set wind direction. A control device for an air conditioner is provided with a parameter determination unit, a representative temperature estimation unit, an indoor temperature distribution estimation unit, and an air conditioning condition adjustment unit. The parameter determination unit determines parameters of the volume, direction, and temperature of air blown into the room by the indoor unit, based on the air conditioning condition of the indoor unit, the indoor temperature measured by the indoor thermometer, and the outdoor temperature measured by the outdoor thermometer. The representative temperature estimating unit estimates a representative temperature of the indoor temperature when the first time has elapsed since the air conditioning of the room by the wind having the temperature determined by the parameter determining unit, using a thermal energy model that estimates the indoor temperature from the thermal energy in the room. The indoor temperature distribution estimating unit estimates, using a fluid model that estimates temperatures at a plurality of locations in a room from a flow of air in the room and a thermal energy of the air: and an indoor temperature distribution when a second time longer than the first time has elapsed after the air in the room air conditioned to the representative temperature estimated by the representative temperature estimating unit as a whole when the first time has elapsed has been conditioned to the representative temperature determined by the parameter determining unit, and when the air volume, the air direction, and the temperature of the air are subsequently conditioned. The air conditioning condition adjusting unit obtains a representative value or a temperature of the specific location from the indoor temperature distribution estimated by the indoor temperature distribution estimating unit, and adjusts the air conditioning conditions of the indoor unit and the outdoor unit based on a difference between the obtained representative value or the temperature of the specific location and the set temperature.
According to the configuration of the present invention, the representative temperature estimating unit estimates the representative temperature representative of the room temperature at the elapse of the first time using the thermal energy model, and the room temperature distribution estimating unit estimates the room temperature distribution at the elapse of the second time longer than the first time when the air in the room air conditioned as a whole to the representative temperature estimated by the representative temperature estimating unit at the elapse of the first time is subsequently conditioned with the air volume, the wind direction, and the temperature of the wind determined by the parameter determining unit, using the fluid model. Therefore, the control device of the air conditioner can estimate the accurate indoor temperature in a short time.
Drawings
Fig. 1 is a block diagram of an air conditioner as a control target object of a control device according to embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of an indoor unit provided in an air conditioner as a control target of the control device according to embodiment 1 of the present invention.
Fig. 3 is a conceptual diagram of an example of the direction of the wind blown out by an indoor unit provided in an air conditioner as a control target of the control device according to embodiment 1 of the present invention.
Fig. 4 is a conceptual diagram of another example of the direction of the wind blown out by an indoor unit provided in an air conditioner as a control target of the control device according to embodiment 1 of the present invention.
Fig. 5 is a block diagram of a control device of an air conditioner according to embodiment 1 of the present invention.
Fig. 6 is a schematic diagram of a data table stored in a storage unit provided in a control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 7 is a schematic view of heat transfer data stored in a storage unit provided in a control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 8 is a schematic diagram of room data stored in a storage unit provided in a control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 9 is a schematic view of indoor unit air distribution data stored in a storage unit provided in a control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 10 is a schematic diagram of determination data stored in a storage unit provided in a control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 11 is a schematic diagram of a cell of a room used for calculation by a temperature distribution estimating unit provided in a control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 12 is a hardware configuration diagram of a control device of an air conditioner according to embodiment 1 of the present invention.
Fig. 13 is a flowchart of an air conditioner control process performed by the control device of the air conditioner according to embodiment 1 of the present invention.
Fig. 14 is a conceptual diagram of cells when the temperature distribution is estimated in the air-conditioner control process performed by the control device of the air-conditioner according to embodiment 1 of the present invention.
Fig. 15 is a block diagram of a remote controller provided in an air conditioner controlled by a control device for the air conditioner according to embodiment 2 of the present invention.
Fig. 16A is a conceptual diagram of each region of a room for which a representative value is obtained when the air-conditioning condition adjusting unit provided in the modified example of the control device of the air-conditioner according to embodiment 1 of the present invention adjusts the setting data.
Fig. 16B is a graph showing changes in the average temperature of each region.
(symbol description)
1A: a control device; 10: a parameter determination section; 20: a representative temperature estimating unit; 30: a temperature distribution estimating unit; 40: an air conditioning condition adjustment unit; 50: a storage unit; 51: a data table; 52: heat conduction data; 53: room data; 54: indoor unit wind distribution data; 55: judging data; 60: a wireless communication module; 70: a network; 100: an air conditioner; 110: a refrigerant pipe; 120: an outdoor unit; 121: a compressor; 122: a four-way valve; 123: an outdoor heat exchanger; 124: an expansion valve; 125: a motor; 126: a fan; 130: an indoor unit; 131: an indoor heat exchanger; 132: a fan; 133. 134: a wind direction control plate; 140: a remote controller; 141: a selection button; 142: a temperature setting button; 143: an air volume setting button; 144: a wind direction setting button; 145: a control unit; 150: an indoor unit control unit; 151: a wireless communication module; 160: an outdoor unit control unit; 170: an indoor temperature sensor; 180: an outdoor temperature sensor; 190: a remote controller; 196: adjusting a setting button; 200: a room; 210: a cell; 300: a CPU; 310: an I/O port; a1, A2: an area; p1, P2: during the period; t1, T2: an average temperature; w: wind.
Detailed Description
Hereinafter, a control device for an air conditioner, a control method for an air conditioner, and a program according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or equivalent portions are denoted by the same reference numerals.
(embodiment mode 1)
The control device of the air conditioner of embodiment 1 is a device as follows: in order to bring the indoor temperature close to the set temperature set by the user, the indoor temperature at the time of air conditioning by the air conditioner is estimated, and the estimation result is fed back to the air conditioner. In order to estimate the indoor temperature accurately and in a short time, this control device uses a thermal model of a room in which the indoor unit is installed and a fluid model of air in the room.
First, an air conditioner to be controlled will be described with reference to fig. 1 to 4. Next, the structure of the control device will be described with reference to fig. 5 to 12. Next, the operation of the control device will be described with reference to fig. 13 and 14. Hereinafter, the control device of the air conditioner is simply referred to as a control device.
Fig. 1 is a block diagram of an air conditioner 100 as a control target object of a control device 1A according to embodiment 1. Fig. 2 is a sectional view of an indoor unit 130 provided in the air-conditioning apparatus 100. Fig. 3 is a conceptual diagram of an example of the direction of the air blown out by the indoor unit 130. Fig. 4 is a conceptual diagram of another example of the direction of the air blown out by the indoor unit 130. In fig. 3 and 4, for easy understanding, the direction of the wind blown out by the indoor unit 130 is shown by surrounding the area where the wind at a specific wind speed is blown with a broken line.
As shown in fig. 1, the air conditioner 100 is connected by a refrigerant pipe 110, and includes a compressor 121 through which refrigerant flows, a four-way valve 122, an outdoor heat exchanger 123, an expansion valve 124, and an indoor heat exchanger 131.
The compressor 121, the four-way valve 122, the outdoor heat exchanger 123, and the expansion valve 124 are components of the outdoor unit 120. The compressor 121 includes a motor 125, and compresses the refrigerant by rotation of the motor 125. The four-way valve 122 switches the flow of the refrigerant in the refrigerant pipe 110. The outdoor heat exchanger 123 is installed outdoors, and blows outdoor air by a fan 126. Thereby, the refrigerant flowing through the outdoor heat exchanger 123 exchanges heat with outdoor air. The expansion valve 124 expands the refrigerant.
In contrast, the indoor heat exchanger 131 is a component of the indoor unit 130. The indoor heat exchanger 131 is installed indoors, and blows air indoors by a fan 132. Thereby, the refrigerant flowing through the indoor heat exchanger 131 exchanges heat with indoor air.
These components of the outdoor unit 120 and the indoor unit 130 are connected by the refrigerant pipe 110 in the order of the compressor 121, the four-way valve 122, the outdoor heat exchanger 123, the expansion valve 124, the indoor heat exchanger 131, the four-way valve 122, and the compressor 121. Thereby, a refrigerant circuit for circulating the refrigerant is formed. In this refrigerant circuit, the four-way valve 122 switches the flow of the refrigerant, thereby cooling or heating the indoor air.
Specifically, when the four-way valve 122 is switched to one direction, the refrigerant is turned into a high-temperature and high-pressure gas by the compressor 121 and then flows into the outdoor heat exchanger 123. Further, the refrigerant exchanges heat with outdoor air in the outdoor heat exchanger 123 to be cooled, and then is expanded by the expansion valve 124 to become a low-temperature liquid. The refrigerant that has become low-temperature and liquid flows into the indoor heat exchanger 131, and exchanges heat with the indoor air in the indoor heat exchanger 131. At this time, the refrigerant absorbs heat of indoor air. As a result, the interior of the room is cooled. After cooling the indoor space, the refrigerant returns to the compressor 121.
When the four-way valve 122 is switched from this state, the refrigerant flows in the reverse direction. That is, the refrigerant flows from the compressor 121 to the indoor heat exchanger 131. The refrigerant exchanges heat with indoor air in the indoor heat exchanger 131, is cooled, and is expanded by the expansion valve 124 to become a low-temperature liquid. The refrigerant then flows into the outdoor heat exchanger 123, exchanges heat with outdoor air, and returns to the compressor 121. In this case, the refrigerant radiates heat to the indoor air when exchanging heat with the indoor air in the indoor heat exchanger 131. As a result, the indoor space is heated.
In this way, the air conditioner 100 operates in cooling or heating by switching the four-way valve 122. In order to realize this operation according to the intention of the user, the air conditioner 100 includes a remote controller 140, and an indoor unit controller 150 and an outdoor unit controller 160 that operate according to the output of the remote controller 140.
The remote controller 140 includes a selection button 141 for a user to select an operation mode for cooling or heating the air conditioner 100, a temperature setting button 142 for a user to set a target temperature for air conditioning, an air volume setting button 143 for a user to set a target air volume, and an air direction setting button 144 for a user to set a target air direction. The remote controller 140 includes a control Unit 145 having an MPU (Micro Processing Unit). When any of the selection button 141, the temperature setting button 142, the air volume setting button 143, and the wind direction setting button 144 is pressed, the control unit 145 transmits setting data set by the operation to the indoor unit control unit 150.
The setting data is data set by the user pressing the button among the data of the operation mode, the temperature, the air volume, and the wind direction. Hereinafter, the operation mode, the temperature, the air volume, and the wind direction set by the user by pressing the selection button 141, the temperature setting button 142, the air volume setting button 143, and the wind direction setting button 144 are referred to as a setting mode, a setting temperature, a setting air volume, and a setting wind direction.
The indoor unit control unit 150 controls the rotation speed of the fan 132 based on the setting data every time the setting data of any one of the setting mode, the setting temperature, the setting air volume, and the setting air direction is received. Thus, the indoor unit controller 150 adjusts the air volume of the fan 132. As a result, the amount of heat transferred from the refrigerant flowing through the indoor heat exchanger 131 to the indoor air is adjusted, and the temperature of cooling or heating is adjusted.
Further, the indoor unit control unit 150 adjusts the direction of the air blown by the fan 132 based on the setting data every time the setting data of any one of the setting mode, the setting temperature, the setting air volume, and the setting air direction is received.
Specifically, as shown in fig. 2, the indoor unit 130 includes an airflow direction control plate 133, and the airflow direction control plate 133 can change the direction of the airflow W generated by the fan 132 with respect to the vertical direction by inclining the plate surface in the vertical direction. The indoor unit 130 further includes an airflow direction control plate 134, and the airflow direction control plate 134 can change the direction of the airflow W generated by the fan 132 with respect to the left-right direction by tilting the plate surface in the left-right direction. The indoor unit control unit 150 adjusts the inclination of the plate surface of the wind direction control plate 133 or 134 based on the setting data every time the setting data is received. As a result, the indoor unit control unit 150 adjusts the wind direction of the fan 132 as shown in fig. 3 and 4.
Further, the indoor-unit control unit 150 transmits the setting data to the outdoor-unit control unit 160 every time the setting data of any one of the setting mode, the setting temperature, the setting air volume, and the setting air direction is received.
The outdoor unit control unit 160 switches the four-way valve 122 according to the received setting data. Thus, the air conditioner 100 operates in a cooling or heating mode, which is a mode set by the user.
Further, the outdoor unit control unit 160 controls the rotation frequency of the motor 125 based on the received setting data. Thereby, the outdoor unit control unit 160 adjusts the degree of compression of the refrigerant by the compressor 121. As a result, the temperature of the refrigerant is adjusted.
The outdoor unit control unit 160 controls the opening degree of the expansion valve 124 based on the received setting data. Thereby, the outdoor unit control unit 160 adjusts the degree of pressure reduction of the refrigerant. As a result, the temperature of the refrigerant is adjusted.
The outdoor unit control unit 160 controls the rotation speed of the fan 126 based on the received setting data. Thereby, the outdoor unit controller 160 adjusts the amount of heat of the refrigerant transferred from the outdoor air to the outdoor heat exchanger 123. As a result, the temperature of the cooling or heating is adjusted.
The air conditioner 100 further includes an indoor temperature sensor 170, and the indoor temperature sensor 170 measures an indoor temperature and transmits a measurement result thereof to the indoor unit control unit 150. The indoor unit control unit 150 controls the rotation speed of the fan 132 and the inclination of the plate surface of the airflow direction control plate 133 or 134 based on not only the setting data but also the data of the indoor temperature measured by the indoor temperature sensor 170. The indoor temperature sensor 170 is an example of the indoor thermometer described in the present specification.
The indoor unit control unit 150 transmits data of the indoor temperature sensor 170 to the outdoor unit control unit 160. The outdoor unit control unit 160 controls the rotational frequency of the motor 125 of the compressor 121, the opening degree of the expansion valve 124, and the rotational speed of the fan 126, based on the data of the indoor temperature as well as the setting data.
In this way, in the air-conditioning apparatus 100, the indoor unit 130 and the indoor unit 130 operate based on the data of the setting mode, the setting temperature, the setting air volume, the setting air direction, and the indoor temperature set in the remote controller 140. Thereby, the indoor unit 130 and the indoor unit 130 operate in the setting mode set by the user. The indoor units 130 and 130 adjust the indoor air to the set temperature, the set air volume, and the set wind direction set by the user.
However, the size of the room to be air-conditioned often differs for each room in which the air conditioner 100 is installed. As a result, when the air conditioner 100 is used to air-condition the room, the room temperature may not reach the set temperature until the target time desired by the user. Further, the indoor temperature of the position where the user is located in the room may not reach the set temperature. From such a background, it is desirable to simulate in advance what temperature the temperature at an arbitrary position in the room will be at in the target time, and to control the operation of the air conditioner 100 according to the result.
Therefore, the air conditioner 100 is provided with the control device 1A, and the control device 1A estimates the subsequent indoor temperature distribution when the air conditioner 100 operates in accordance with the user's set temperature, set air volume, and set wind direction, and adjusts the operation of the air conditioner 100 based on the estimation result. Next, the configuration of the control device 1A will be described with reference to fig. 5 to 12.
Fig. 5 is a block diagram of a control device 1A of the air conditioner 100 according to embodiment 1. Fig. 6 to 10 are schematic diagrams of the data table 51, the heat transfer data 52, the room data 53, the indoor unit air distribution data 54, and the determination data 55 stored in the storage unit 50 included in the control device 1A. Fig. 11 is a schematic diagram of a cell 210 of the room 200 used for calculation by the temperature distribution estimating unit 30 provided in the control device 1A. Fig. 12 is a hardware configuration diagram of the control device 1A. In fig. 5, for the sake of easy understanding, the main structure of the air conditioner 100 is shown in addition to the structure of the control device 1A.
As shown in fig. 5, the control device 1A includes: a parameter determination unit 10 that determines a wind characteristic parameter of the indoor unit 130 blown into the room; a representative temperature estimating unit 20 configured to estimate a representative temperature in the room after a predetermined time when the air in the room is conditioned by the wind of the wind characteristic parameter determined by the parameter determining unit 10; a temperature distribution estimating unit 30 that estimates a subsequent indoor temperature distribution when air conditioning is performed based on the temperature at the representative point in the room estimated by the representative temperature estimating unit 20; an air-conditioning condition adjusting unit 40 that adjusts the air-conditioning conditions of the indoor units 130 and 130 based on the temperature distribution estimated by the temperature distribution estimating unit 30; a storage unit 50 for storing various data; and a wireless communication module 60 for communicating with the indoor unit control unit 150.
The parameter identification unit 10 is a part that identifies parameters necessary for calculation from the indoor units 130 and the air-conditioning conditions of the indoor units 130. As described later, the representative temperature estimating unit 20 and the temperature distribution estimating unit 30 estimate the indoor temperature using the thermal energy model and the fluid model of the room 200, without using an operation model that estimates the indoor temperature from the air conditioning conditions of the indoor units 130 and the indoor units 130. Therefore, the calculation requires parameters of heat energy and fluid, without requiring air conditioning conditions of the indoor units 130 and the indoor units 130. The parameter determination unit 10 determines the parameter based on the indoor units 130 and the air-conditioning conditions of the indoor units 130.
Specifically, the control device 1A and the indoor unit control unit 150 have wireless communication modules 60 and 151, respectively. The parameter determination unit 10 is connected to the indoor unit control unit 150 via the network 70 by the wireless communication modules 60 and 151. The parameter determination unit 10 acquires the indoor unit 130 and the data of the air-conditioning conditions of the indoor unit 130 from the indoor unit control unit 150.
Here, the air-conditioning conditions of the indoor unit 130 and the indoor unit 130 refer to the switching direction of the four-way valve 122 provided in the outdoor unit 120, the rotational frequency of the compressor 121, the opening degree of the expansion valve 124, the rotation speed of the fan 126, the rotation speed of the fan 132 provided in the indoor unit 130, and the inclination of the airflow direction control plates 133 and 134.
The air conditioner 100 includes an outdoor temperature sensor 180 that measures an outdoor temperature and transmits the outdoor temperature to the indoor unit control unit 150, in addition to the indoor temperature sensor 170. The parameter identification unit 10 acquires the indoor temperature measured by the indoor temperature sensor 170 and the outdoor temperature measured by the outdoor temperature sensor 180 via the wireless communication modules 60 and 151. The outdoor temperature sensor 180 is an example of an outdoor thermometer described in the present specification.
The storage unit 50 stores a data table 51 obtained by an experiment in advance. As shown in fig. 6, in the data table 51, the data of the air-conditioning conditions, the indoor temperature, and the outdoor temperature are associated with the wind characteristic parameters of the wind blown into the room by the indoor unit 130 under the air-conditioning conditions, the indoor temperature, and the outdoor temperature.
Here, the wind characteristic parameters are parameters for determining the volume, direction, and temperature of the wind blown into the room by the indoor unit 130.
The parameter determination unit 10 reads the data table 51 from the storage unit 50 shown in fig. 5, and determines the wind characteristic parameter corresponding to the acquired air conditioning condition, indoor temperature, and outdoor temperature data from the data table 51. The parameter determination unit 10 transmits the determined wind characteristic parameter to the representative temperature estimation unit 20 and the temperature distribution estimation unit 30.
The representative temperature estimating unit 20 estimates a representative temperature in the room at an initial stage when the air conditioner 100 is air-conditioned. Since the temperature distribution estimating unit 30 described later estimates the indoor temperature using the fluid model, the amount of calculation increases and the calculation time increases when calculating the entire operation time of the air conditioner 100. The representative temperature estimating unit 20 estimates the indoor temperature at the initial stage of the air conditioner 100 using the thermal energy model of the room 200 in order to reduce the amount of calculation and shorten the calculation time.
Here, the thermal energy model is a model for estimating the indoor temperature from the thermal energy of the room 200. At the outdoor temperature ToutRelative to the indoor temperature TinRelative temperature (T), i.e. temperature differencedLet t be the elapsed time from the start of operation of the air conditioner 100, R be the thermal resistance from indoor to outdoor, C be the heat capacity in the indoor, Q be the amount of heat supplied to the indoor by the indoor unit, i.e., diffused into the indoor, ρ be the density of the air, and C be the specific heat of the airpAnd the air volume of the air blown out of the indoor unit into the room is AqSetting the temperature of the wind to TWSetting the indoor temperature to TinIn the case of (2), the thermal energy model is expressed by the following equations 1 and 2.
[ number 1]
Figure BDA0003576910090000111
[ number 2]
Q(t)＝ρCpAq(Tw-Tin) Equation 2
The heat capacity C, the thermal resistance R, and the heat quantity Q of formula 1 are expressed in W/DEG C and DEG C/W, W. Temperature difference TdThe unit of (A) is [ deg. ] C. Density ρ of air and specific heat C of air in formula 2pAir quantity AqUnit of (b) is kg/m3、(W·s)f/(kg·℃)、m3In seconds. Temperature T of windWIndoor temperature TinThe units of (A) are all in degrees Celsius. The unit of the elapsed time t of equations 1 and 2 is seconds.
The thermal conductivity of the wall of the room 200 is h, the wall surface area of the room 200 is S, the specific heat of the wall is c, and the volume of the wall is VoIn the case of (1), the thermal resistance R and the thermal capacity C of formula 1 are expressed by the following formulas 3 and 4.
[ number 3]
Figure BDA0003576910090000112
[ number 4]
C＝cVoEquation 4
The thermal conductivity h and the wall area S in equation 3 are expressed in units of W/(m)2·℃)、m2. Specific heat of wall c, volume of wall V of equation 4oThe unit of (d) is W/(. degree. C. m)3)、m3。
The representative temperature estimating unit 20 using the thermal energy model will be described in detail, and the representative temperature estimating unit 20 calculates the temperature difference T of the thermal energy modeldThe initial value of (2) is obtained from the parameter specifying unit 10 as the indoor temperature and the outdoor temperature at the time of specifying the parameter. Then, the representative temperature estimating unit 20 subtracts the outdoor temperature from the indoor temperature to obtain the temperature difference T of the thermal energy modeldIs started. The representative temperature estimating unit 20 uses the acquired indoor temperature as the indoor temperature T of the thermal energy modelin。
The representative temperature estimating unit 20 obtains the air volume a of the thermal energy modelqTemperature T of windWReceives the wind characteristic parameter of the parameter determination unit 10. The representative temperature estimating unit 20 uses the wind volume and the wind temperature of the wind characteristic parameter as the wind volume a of the thermal energy modelqTemperature T of windW。
The storage unit 50 stores heat conduction data 52 shown in fig. 7, including the heat conductivity of the wall of the room 200 in which the indoor units 130 are installed, the wall area, the specific heat of the wall, the volume of the wall, the density of air, and the specific heat of air. The representative temperature estimating unit 20 obtains the density ρ of air and the specific heat C of air in the thermal energy modelpThe thermal conductivity data 52 is read from the memory unit 50. Then, the representative temperature estimating unit 20 uses the data of the density of air and the specific heat of air included in the read heat conduction data 52 as the density ρ of air and the specific heat C of air of the thermal energy modelp。
The representative temperature estimating unit 20 obtains the thermal resistance and the thermal capacity using the data of the thermal conductivity of the wall, the wall area, the specific heat of the wall, and the volume of the wall included in the read thermal conductivity data 52, and the equations 3 and 4. Then, the representative temperature estimating unit 20 uses the obtained thermal resistance and thermal capacity as the thermal resistance R and thermal capacity C of the thermal energy model.
The representative temperature estimating unit 20 uses the obtained temperature difference TdT thus obtainedinThe parameters and the thermal energy model are equal to each other, and the operation start t of the air conditioner 100 is obtained0Time t after a certain time1Lower room temperature TinAnd outdoor temperature ToutTemperature difference T ofd(t1). The representative temperature estimating unit 20 estimates the temperature difference T obtained by the calculationd(t1) Plus the outdoor temperature ToutTo find the indoor temperature T after a certain timein(t1). The representative temperature estimating unit 20 estimates the obtained indoor temperature Tin(t1) The representative temperature, which is representative of the indoor temperature, is sent to the temperature distribution estimating unit 30.
The temperature distribution estimating unit 30 estimates an accurate indoor temperature distribution after the indoor temperature estimated by the representative temperature estimating unit 20. The temperature distribution estimating unit 30 uses a fluid model of the air in the room to estimate an accurate temperature distribution. Thus, the temperature distribution estimating unit 30 estimates the temperature distribution in the room at the time after the estimation by the representative temperature estimating unit 20. The temperature distribution estimating unit 30 is an example of an indoor temperature distribution estimating unit described in the present specification.
Here, the fluid model is a model for estimating the temperature distribution in the room by estimating the temperature of an arbitrary portion in the room from the flow of air in the room and the heat energy of the air. Let the pressure of the air in the room be p, let the flow velocity vector of the air be (u, V, w), and let the room temperature be TinIn the case of (2), the fluid model is expressed by the following equations 5 to 8.
[ number 5]
Figure BDA0003576910090000131
[ number 6]
Figure BDA0003576910090000132
[ number 7]
Figure BDA0003576910090000133
[ number 8]
Figure BDA0003576910090000134
In addition, Re in the formulas 5 and 6 is a reynolds number. Pr of equation 6 is the prandtl number.
The temperature distribution estimating unit 30 determines a temperature estimation portion of the room 200 in order to estimate the temperature distribution using the fluid model. Specifically, the storage unit 50 stores room data 53 including three-dimensional data of a room 200 shown in fig. 8. The temperature distribution estimating unit 30 reads the room data 53, and obtains the shape and size of the room 200 from the three-dimensional data of the room 200 of the read room data 53. Then, the temperature distribution estimating unit 30 obtains the center coordinates of each cell 210 when the room 200 shown in fig. 15 is divided by the cube-shaped cells 210, based on the obtained shape and size. Thus, the temperature distribution estimating unit 30 determines the temperature estimation location of the room 200. Hereinafter, the center coordinates of each cell 210 are referred to as cell coordinates.
The temperature distribution estimating unit 30 determines the indoor temperature T of the fluid model expressed by the equations 5 to 8inThe representative temperature in the room obtained by the thermal energy model is acquired from the representative temperature estimating unit 20. Then, the temperature distribution estimating unit 30 assigns the representative temperature obtained from the temperature distribution estimating unit 30 to the coordinates of each cell 210. Thus, the temperature distribution estimating unit 30 assumes that the temperature of the air in all the cells 210 is the representative temperature obtained from the temperature distribution estimating unit 30. Thus, the temperature distribution estimating unit 30 determines the temperature T of the fluid model for all the cells 210inIs started.
Further, the temperature distribution estimating unit 30 determines a boundary condition and an initial value of the flow velocity vector V of the air of the fluid model in each cell 210.
Specifically, the room data 53 shown in fig. 8 described above in the storage unit 50 includes outlet position data and inlet position data indicating 3-dimensional coordinates of the outlet and inlet of the air in the indoor unit 130 in the room 200. The temperature distribution estimation unit 30 reads the air outlet position data and the air inlet position data from the room data 53, and specifies the cell coordinates of the cell 210 in which the air outlet and the air inlet are arranged from the data.
The temperature distribution estimation unit 30 receives data of the air volume, the wind direction, and the wind speed of the air outlet, which are wind characteristic parameters, from the parameter determination unit 10. On the other hand, the storage unit 50 stores indoor unit air distribution data 54 shown in fig. 9, and the indoor unit air distribution data 54 includes outlet air distribution data indicating an air distribution in the vicinity of the outlet and intake air distribution data indicating an air distribution in the vicinity of the intake, which are experimentally obtained. The temperature distribution estimating unit 30 reads the indoor unit air distribution data 54 from the storage unit 50.
Here, the parameter specifying unit 10 determines the wind characteristic parameters, that is, the wind volume, the wind direction, and the wind speed of the wind blown out from the air outlet, based on the wind volume, the wind direction, and the wind speed corresponding to the air-conditioning conditions of the data table 51 as described above. In contrast, the indoor unit air distribution data 54 stores the outlet air distribution data and the inlet air distribution data for each combination of the air volume, the wind direction, and the wind speed in the data table 51.
The temperature distribution estimation unit 30 specifies outlet air distribution data and inlet air distribution data corresponding to the received outlet air volume, wind direction, and wind speed data, based on the outlet air volume, wind direction, and wind speed data received from the parameter specification unit 10 and the read indoor unit air distribution data 54. Then, the temperature distribution estimating unit 30 obtains the wind direction and the wind speed of the cell 210 located near the air outlet and the air inlet, using the determined air outlet wind distribution data and air inlet wind distribution data and the cell coordinates determined to have the air outlet and the air inlet arranged.
The temperature distribution estimating unit 30 obtains a flow velocity vector V of the air from the obtained wind direction and wind velocity, and assigns the flow velocity vector V to cell coordinates of the cell 210 located near the air outlet and the air inlet. The temperature distribution estimating unit 30 assigns a flow velocity vector V having a magnitude of 0 to the cell coordinates of the cells 210 other than the vicinity of the air outlet and the air inlet. Based on the above, the temperature distribution estimation unit 30 obtains the initial value and the boundary condition of the flow velocity vector V of the fluid model expressed by the equations 5 to 8 for all the cells 210.
The temperature distribution estimating unit 30 obtains the pressure p of the fluid model in each cell 210. Specifically, the temperature distribution estimating unit 30 obtains the dynamic pressure from the magnitude of the flow velocity of the assigned flow velocity vector V for each cell 210. Then, the temperature distribution estimating unit 30 sets the static pressure to 1 atmospheric pressure, and obtains the pressure p, which is the total pressure of each cell 210. The temperature distribution estimation unit 30 assigns the pressure p of each cell 210 to the cell coordinates of each cell 210. Thus, the temperature distribution estimation unit 30 obtains the initial value of the pressure p of the fluid model for all the cells 210.
The temperature distribution estimating unit 30 calculates the temperature T of each cell 210 obtained by the above-described processinginThe flow velocity vector V and the pressure p are initial values, and the temperature of the air in each cell 210 at the target time is obtained by solving equations 5 to 8 for all cells 210. Thus, the temperature distribution estimating unit 30 obtains the indoor temperature distribution at the target time. The temperature distribution estimating unit 30 sends the obtained temperature distribution, that is, the temperature of the air in all the cells 210 to the air-conditioning condition adjusting unit 40.
The temperature distribution estimating unit 30 calculates the amount of time obtained by subtracting the predetermined time period representative of the calculation performed by the temperature estimating unit 20 from the target time, but the time obtained by this subtraction is an example of the second time period described in the present specification. The temperature distribution estimating unit 30 is an example of an indoor temperature distribution estimating unit described in the present specification.
The air conditioning condition adjusting unit 40 receives the temperature data of the air of all the cells 210 from the temperature distribution estimating unit 30, and determines whether or not the temperature of the air of the cell 210 at the set position among all the cells 210 is within an allowable range that can be allowed from the set temperature at the above target time.
Specifically, the air-conditioning condition adjustment unit 40 acquires the setting data from the indoor unit control unit 150 via the wireless communication modules 60 and 151. As shown in fig. 10, the storage unit 50 stores determination data 55 including coordinates of a specific position in a room where the indoor temperature is to be determined and a threshold value of a temperature difference between the indoor temperature and the set temperature. The air conditioning condition adjusting unit 40 reads the determination data 55 from the storage unit 50, and specifies the cell 210 including the specific position based on the coordinates of the specific position in the read determination data 55. The air conditioning condition adjusting unit 40 obtains an absolute value of a temperature difference between the indoor temperature of the identified cell 210 and the set temperature included in the acquired set data. The air conditioning condition adjusting unit 40 determines whether or not the obtained absolute value exceeds a threshold value.
When determining that the absolute value exceeds the threshold value, the air conditioning condition adjustment unit 40 calculates a temperature difference between the set temperature and the indoor temperature of the cell 210, and corrects the set temperature based on the calculated temperature difference. For example, the air conditioning condition adjusting unit 40 adjusts the set temperature up or down by an amount corresponding to the temperature difference. Then, the air conditioning condition adjustment unit 40 transmits the corrected set temperature to the indoor unit control unit 150 via the wireless communication modules 60 and 151.
When determining that the absolute value does not exceed the threshold value, the air-conditioning condition adjustment unit 40 does not transmit data to the indoor unit control unit 150.
The indoor unit control unit 150 controls the rotation speed of the fan 132 based on the corrected set temperature received from the air-conditioning condition adjustment unit 40. The indoor-unit control unit 150 transmits the corrected set temperature to the outdoor-unit control unit 160. Thus, the outdoor unit control unit 160 controls the rotational frequency of the motor 125 included in the compressor 121, the opening degree of the expansion valve 124, and the rotation speed of the fan 126 based on the corrected set temperature. As a result, the air conditioning of the air conditioner 100 is more accurately adjusted.
As shown in fig. 12, the control device 1A includes a CPU (Central Processing Unit) 300 and an I/O Port (Input/Output Port)310 to which the wireless communication module 60 is connected. In addition, an air conditioner control program is stored in the storage unit 50. The parameter determination unit 10, the representative temperature estimation unit 20, the temperature distribution estimation unit 30, and the air-conditioning condition adjustment unit 40 are realized by the CPU300 executing an air-conditioning control program stored in the storage unit 50.
Next, the operation of the control device 1A will be described with reference to fig. 13 and 14. In the following description, the control device 1A is implemented using an information processing device such as a personal computer or a server including a CPU300 and an I/O port 310 connected to the air-conditioning apparatus 100 via the network 70.
Fig. 13 is a flowchart of the air conditioner control process executed by the control device 1A. Fig. 14 is a conceptual diagram of cells when the temperature distribution is estimated by the air conditioner control process.
When the air conditioner control program is started in the above-described information processing apparatus, the air conditioner control program is executed by the CPU 300. As a result, the flow of the air conditioner control process is started.
When the flow of the air-conditioner control process is started, first, as shown in fig. 13, control device 1A determines whether or not indoor-unit control unit 150 has received setting data (step S1). Specifically, the indoor unit control unit 150 transmits a setting data reception completion signal to the control device 1A every time there is transmission of setting data from the remote controller 140. The control device 1A determines whether or not the setting data reception completion signal is present.
If it is determined that the indoor unit controller 150 has not received the setting data (no at step S1), the control device 1A returns to the state before step S1.
On the other hand, when determining that the indoor unit control unit 150 has received the setting data (yes at step S1), the control device 1A acquires the air-conditioning conditions of the outdoor unit 120 and the indoor units 130, that is, the four-way joint provided in the outdoor unit 120The switching direction of the valve 122, the rotational frequency of the compressor 121, the opening degree of the expansion valve 124, the rotational speed of the fan 126, the rotational speed of the fan 132 provided in the indoor unit 130, and the inclination of the airflow direction control plates 133 and 134. In addition, the control device 1A acquires the indoor temperature TinAnd outdoor temperature Tout(step S2).
Next, the control device 1A determines the wind characteristic parameter blown by the indoor unit 130 (step S3). Specifically, the control device 1A reads the data table 51 from the storage unit 50, and determines the wind characteristic parameter of the indoor unit 130 based on the data table 51 and the air-conditioning condition, the indoor temperature, and the outdoor temperature acquired in step S2. Further, steps S2 and S3 are an example of the parameter determination step described in this specification.
After determining the wind characteristic parameter, the control device 1A estimates a representative temperature in the room using the thermal energy model (step S4).
Specifically, the control device 1A reads the heat transfer data 52 from the storage unit 50, and calculates the thermal resistance R from the indoor to the outdoor and the heat capacity C in the indoor of equations 3 and 4 using the read heat transfer data 52. The control device 1A compares the calculated thermal resistance and thermal capacity with the indoor temperature T acquired in step S2inAnd outdoor temperature ToutAnd the wind characteristic parameter determined in step S3 is applied to the above-described equation 1 and equation 2 of the thermal energy model, and the time t at which a predetermined time has elapsed since the start of the operation of the air conditioner 100 is calculated1Lower room temperature TinAnd outdoor temperature ToutTemperature difference T ofd(t1)。
Here, as the fixed time, a time shorter than the target time of the desired temperature estimation is set. For example, in the case where the target time is 1 or 2 hours, the certain time is 30 minutes or 1 hour. Further, regarding the fixed time, in order to shorten the calculation time of the entire representative temperature estimating unit 20 and the temperature distribution estimating unit 30, it is preferable that the temperature difference T is set to be equal to or less than the temperature difference Td(t1) A sufficiently long time for saturation. The certain time is preferably 2 to 3 times of a time constant expressed by, for example, the product of the thermal resistance R and the thermal capacity C expressed by equations 3 and 4. In addition, a certain period of time is as described in the specificationAn example of the first time is said.
Temperature difference T obtained by calculation using thermal energy modeld(t1) As mentioned above is the outdoor temperature Tout(t0) Relative to the indoor temperature TinRelative temperature of (a). Therefore, the control device 1A adds the outdoor temperature T acquired in step S2 to the calculated temperature differenceout(t0) Calculating the indoor temperature T after a predetermined time has elapsed from the start of operationin(t1). Then, the control device 1A adjusts the indoor temperature Tin(t1) As a representative temperature in the representative room. Thereby, the control device 1A estimates the representative temperature. Step S4 is an example of the representative temperature estimation step described in the present specification.
Next, the control device 1A estimates the temperature distribution in the chamber using the fluid model (step S5).
To explain in detail, the control device 1A estimates the temperature distribution by solving the above equation 5 to equation 8 by the MAC (Marker And Cell) method. More specifically, the control device 1A reads the room data 53 from the storage unit, and obtains the center coordinates of each cell 210 when the room 200 is divided by the cube-shaped cells 210 from the room data 53.
The control device 1A assigns the representative temperature estimated in step S4 as the temperature of each of the cells 210. The control device 1A also obtains the flow velocity vector of the air for each cell 210 using the indoor unit air distribution data 54 stored in the storage unit 50, and assigns the obtained flow velocity vector to each cell 210. Further, the control device 1A obtains the pressure of the air for each cell 210 using the indoor unit air distribution data 54 stored in the storage unit 50. The control device 1A distributes the determined pressure to each cell 210.
Next, the control device 1A solves equations 5 to 8 using the representative temperature, flow velocity vector, and pressure assigned to each cell 210. Thus, the control device 1A calculates the temperatures of all the cells 210 after a certain time period from the start of the operation of the air conditioner 100 in step S4. Thereby, the control device 1A obtains the temperatures of all the cells 210 when the target time has elapsed.
In this calculation, the control device 1A preferably sets the size of the cell 210 assumed to be divided into the cells 210 to be smaller than each part of the human body, such as the head, the trunk, and the feet. For example, the control device 1A determines the center coordinates of each cell 210 by dividing the room 200 into cubes each having a side of 20 cm.
The control device 1A performs the calculation by using a time step Δ t in which the coulomb number represented by equation 9 is 1 or less. For example, when the size of the cell is 20cm and the air speed of the outlet port of the indoor unit 130 is 5 m/sec, the control device 1A sets the time step Δ t to 0.04 sec or less.
[ number 9]
Figure BDA0003576910090000191
When a three-dimensional object such as furniture or a refrigerator is present in the room 200, the three-dimensional object may be formed into the inner wall shape of the room 200, and the three-dimensional data of the room 200 formed into the inner wall shape of the three-dimensional object may be registered in the storage unit 50 as the room data 53. In this case, as shown in fig. 14, the control device 1A may determine the center coordinates of each cell 210 by assuming that a room 200 in which a three-dimensional object has an inner wall shape is divided by a cube-shaped cell 210. Step S5 is an example of the indoor temperature distribution estimation step described in the present specification.
After estimating the temperature distribution in the room, the control device 1A determines whether or not the difference between the temperature at a specific position in the room and the set temperature exceeds a threshold value (step S6). Specifically, the control device 1A reads the determination data 55 from the storage unit 50, and specifies the cell 210 including the coordinates of the specific position included in the determination data 55. The control device 1A obtains the absolute value of the temperature difference between the indoor temperature of the cell 210 and the set temperature, and determines whether the absolute value of the temperature difference exceeds a threshold value.
When determining that the absolute value of the temperature difference exceeds the threshold value (yes at step S6), the control device 1A calculates a temperature difference that is a relative temperature of the indoor temperature of the cell 210 with respect to the set temperature, and corrects the data of the set temperature in accordance with the temperature difference (step S7). Next, the control device 1A transmits the data of the corrected set temperature to the indoor unit 130 (step S8). After that, the control device 1A ends the air conditioner control process. Steps S6 to S8 are examples of the air conditioning condition adjustment steps described in this specification.
On the other hand, if it is determined that the absolute value of the temperature difference does not exceed the threshold (no in step S6), the control device 1A sets the indoor temperature to be within the allowable range from the set temperature, and does not correct the data of the set temperature. Then, the control device 1A ends the current air conditioner control process, and returns to step S1 in preparation for the next setting data input to the remote controller 140 by the user.
In step S7, control device 1A corrects the data of the set temperature in accordance with the temperature difference between the set temperature and the room temperature. However, the operation of the control device 1A is not limited to this, and the control device 1A may correct the data of the set air volume based on the temperature difference between the set temperature and the indoor temperature. In this case, the relationship between the set air volume before correction, the set temperature, and the temperature difference and the air volume to be set can be obtained by an experiment, and a data table created from the experiment is stored in the storage unit 50 in advance. Then, the control device 1A may correct the data of the set air volume based on the data table, the set air volume, the set temperature, and the temperature difference.
In step S7, if there is a temperature difference between the set temperature and the indoor temperature and the set airflow direction is not in the direction from the outlet port of the indoor unit 130 to the specific position in step S6, the control device 1A may correct the set airflow direction to that direction.
The flow of the air conditioner control process is continued until the information processing device stops the air conditioner control program. Thus, the control device 1A continuously performs simulation of the temperature distribution in the room and adjustment of the setting data based on the result thereof.
As described above, the control device 1A according to embodiment 1 includes the representative temperature estimating unit 20 using the thermal energy model and the temperature distribution estimating unit 30 using the fluid model, and therefore can accurately estimate the indoor temperature distribution in a short time.
Further, since the air-conditioning condition adjusting unit 40 corrects the data of the set temperature using the estimated indoor temperature distribution, the air-conditioning apparatus 100 can perform air-conditioning more accurately.
(embodiment mode 2)
The control device 1A according to embodiment 1 corrects the set temperature based on the temperature difference between the estimated indoor temperature and the set temperature. However, the control device 1A is not limited to this. The control device according to embodiment 2 calculates a sensible temperature from the estimated indoor temperature, and corrects the data of the set temperature based on a difference between the calculated sensible temperature and the set temperature. Hereinafter, a control device according to embodiment 2 will be described with reference to fig. 15. In embodiment 2, a configuration different from that of embodiment 1 will be described.
Fig. 15 is a block diagram of a remote controller 190 provided in the air-conditioning apparatus 100 controlled by the control device according to embodiment 2.
As shown in fig. 15, the remote controller 190 has an adjustment setting button 196. The adjustment setting button 196 is a button for turning on and off the adjustment mode in which the control device adjusts the room temperature to the sensible temperature. When the adjustment setting button 196 is pressed, the remote controller 190 transmits the on/off of the adjustment mode to the indoor unit control unit 150.
In the control device, the air-conditioning condition adjustment unit 40 receives the on/off of the adjustment mode from the indoor unit control unit 150.
On the other hand, as described in embodiment 1, the temperature distribution estimating unit 30 calculates the flow velocity vector of the air in the room when estimating the temperature distribution using the fluid model. Therefore, the temperature distribution estimating unit 30 estimates not only the indoor temperature at the target time but also the flow velocity vector at the target time. Thus, the temperature distribution estimating unit 30 estimates the wind speed.
When it is determined that the absolute value of the temperature difference between the indoor temperature estimated by the temperature distribution estimating unit 30 and the set temperature exceeds the threshold value when the adjustment mode is on, the air-conditioning condition adjusting unit 40 calculates the sensible temperature of the person in the cell 210 at the determined specific position, based on the indoor temperature estimated by the temperature distribution estimating unit 30 and the wind speed. In the calculation of the sensible temperature, the temperature distribution estimating unit 30 does not predict the humidity, and thus the linke equation is used. Here, the linke formula is a formula for obtaining a sensible temperature from a wind speed and a temperature.
The air conditioning condition adjusting unit 40 obtains a relative value of the calculated sensible temperature with respect to the set temperature, and corrects the data of the set temperature based on the obtained relative value. Specifically, the air conditioning condition adjusting unit 40 adjusts the set temperature up or down by an amount corresponding to the relative value.
The air conditioning condition adjustment unit 40 transmits the data of the corrected set temperature to the indoor unit control unit 150. Thus, the control device brings the temperature of the air existing at a specific position in the room close to the sensible temperature.
As described above, the control device according to embodiment 2 includes the air-conditioning condition adjusting unit 40, and the air-conditioning condition adjusting unit 40 calculates the sensible temperature at a specific position based on the indoor temperature and the wind speed estimated by the temperature distribution estimating unit 30, and adjusts the set temperature of the air-conditioning apparatus 100 based on the sensible temperature. Therefore, the control device can bring the indoor temperature and the sensible temperature at the time of air conditioning by the air conditioner 100 close to each other. As a result, the control device can improve the comfort of the user.
Although the control device for an air conditioner, the control method for an air conditioner, and the program according to the embodiments of the present invention have been described above, the control device, the air conditioner, the control method for an air conditioner, and the program are not limited to the above embodiments. For example, in embodiments 1 and 2, the air-conditioning condition adjusting unit 40 adjusts the setting data, which is the setting temperature, based on the difference between the indoor temperature at the specific position in the room 200 estimated by the temperature distribution estimating unit 30 and the setting temperature set in the remote controllers 140 and 190.
However, the air conditioning condition adjusting unit 40 is not limited thereto. The air-conditioning condition adjusting unit 40 may adjust the air-conditioning conditions of the indoor unit 130 and the outdoor unit 120 based on the difference between the temperatures without using the setting data. That is, the air-conditioning condition adjusting unit 40 may directly adjust the rotational frequency of the compressor 121, the opening degree of the expansion valve 124, the rotational speed of the fan 126, the rotational speed of the fan 132 provided in the indoor unit 130, and the inclination of the airflow direction control plates 133 and 134.
For example, the difference and the setting data may be stored in the storage unit 50 in association with the rotational frequency of the compressor 121, the opening degree of the expansion valve 124, the rotational speeds of the fans 126 and 132, and the inclination of the airflow direction control plates 133 and 134 to be corrected. The air conditioning condition adjusting unit 40 may read the data from the storage unit 50 and obtain the rotational frequency of the compressor 121, the opening degree of the expansion valve 124, the rotational speeds of the fans 126 and 132, and the inclinations of the airflow direction control plates 133 and 134 from the data. Further, the air conditioning condition adjusting unit 40 may transmit the obtained condition to the indoor unit control unit 150 or the outdoor unit control unit 160.
In embodiments 1 and 2, the air-conditioning condition adjustment unit 40 adjusts the setting data using the indoor temperature at a specific position in the room 200. However, the air conditioning condition adjusting unit 40 is not limited thereto. The air-conditioning condition adjustment unit 40 may adjust the setting data using a representative value that is a numerical value that is a measure of the temperature distribution in the room 200.
Fig. 16A is a conceptual diagram of the areas a1 and a2 of the room 200 in which representative values are obtained when the air-conditioning condition adjustment unit 40 adjusts the setting data. Fig. 16B is a graph showing changes in the average temperatures in the regions a1 and a 2. Fig. 16B shows changes in the estimated indoor temperature in a period P1 in which the representative temperature estimating unit 20 estimates the indoor temperature in the initial stage and a period P2 in which the subsequent temperature distribution estimating unit 30 estimates the indoor temperature. The estimated indoor temperature is the average temperature of the entire room 200 in period P1. In the period P2, the temperature distribution estimating unit 30 estimates the temperature distribution in the room, but in fig. 16B, the temperature distribution is shown by converting it into the average temperature T1 in the region a1 and the average temperature T2 in the region a 2.
The air-conditioning condition adjustment unit 40 may determine the average temperature shown in fig. 16B as a representative value of the indoor temperature distribution in the area a1 or a2 for the area a1 or a2 obtained when the room 200 shown in fig. 16A is divided into 2. Then, the air-conditioning condition adjusting unit 40 may adjust the set temperature based on the difference between the obtained average temperature and the set temperature set in the remote controllers 140 and 190. In this case, the storage unit 50 may store the division data of the room 200 and the area designation data indicating which area is used to adjust the set temperature. Based on these data, the temperature distribution estimating unit 30 determines the region, and the air conditioning condition adjusting unit 40 can obtain the average temperature of the determined region. The representative value of the indoor temperature distribution means, for example, a central value and a maximum value of the indoor temperature distribution, in addition to the average temperature.
In embodiments 1 and 2, the control devices 1A and 1B cause the representative temperature estimating unit 20 to estimate the representative temperature and then output the representative temperature to the temperature distribution estimating unit 30 as it is, and the temperature distribution estimating unit 30 estimates the temperature distribution in the room using the representative temperature. However, the control devices 1A and 1B are not limited to this. The control devices 1A and 1B may further include an arithmetic management unit that causes the representative temperature estimating unit 20 to calculate a predetermined time and inputs the representative temperature estimated by the representative temperature estimating unit 20 to the temperature distribution estimating unit 30. Here, the designated time is a time designated by the arithmetic management unit and has a period corresponding to the fixed time described in embodiment 1.
In embodiments 1 and 2, the parameter specification unit 10 specifies the wind characteristic parameters corresponding to the air-conditioning conditions, the indoor temperatures, and the outdoor temperature data of the outdoor unit 120 and the indoor units 130 using the data table 51. However, the parameter identification unit 10 is not limited to this. The parameter determination unit 10 may determine the respective parameters of the air volume, the air direction, and the temperature of the air blown into the room by the indoor unit 130, based on the air conditioning condition of the indoor unit 130, the indoor temperature measured by the indoor temperature sensor 170, and the outdoor temperature measured by the outdoor temperature sensor 180.
For example, when the indoor unit 130 operates under a specific air conditioning condition with respect to the temperature difference between the indoor temperature and the outdoor temperature, the parameter identification unit 10 may identify the parameter using an approximate function indicating the volume, direction, and temperature of the wind in response to the specific air conditioning condition. In this case, an approximate function representing the air volume, the wind direction, and the temperature according to the air conditioning condition of the indoor unit 130 may be experimentally obtained in advance, and the obtained approximate function may be stored in the storage unit 50. Then, the parameter determination unit 10 may read out the approximation function from the storage unit 50.
In embodiments 1 and 2, the air conditioner control program may be stored in a computer-readable recording medium such as a flexible Optical disk, a CD-ROM (Compact Disc Read-Only Memory), a DVD (Digital Versatile Disc), or an MO (Magneto-Optical Disc), and distributed to the computer, and the program may be installed in the computer to configure the control devices 1A and 1B that execute the air conditioner control process.
The air conditioner control program may be stored in an optical disk device or a storage device of a server device on the internet communication network, and the program may be downloaded, for example, so as to overlap with a carrier wave.
In the case where the air conditioner control program is realized by sharing the respective OSs (Operating systems) or by cooperation of the OS and the application program, only the part other than the OS may be stored in a medium and distributed, or may be downloaded.
The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above embodiments are illustrative of the present invention, and do not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Further, various modifications made within the scope of the claims and within the meaning of the invention equivalent thereto are considered to be within the scope of the present invention.

Claims (7)

1. A control device for an air conditioner, the air conditioner including an indoor unit, an indoor thermometer, an outdoor unit, and an outdoor thermometer, the indoor unit and the outdoor unit being operated under air conditioning conditions based on a set temperature, a set air volume, and a set wind direction, the control device comprising:
a parameter determination unit configured to determine parameters of an air volume, an air direction, and a temperature of air blown into a room by the indoor unit, based on the air conditioning condition of the indoor unit, the indoor temperature measured by the indoor thermometer, and the outdoor temperature measured by the outdoor thermometer;
a representative temperature estimating unit configured to estimate a representative temperature representative of an indoor temperature at a first time when the room is air-conditioned by the wind of the temperature determined by the parameter determining unit, using a thermal energy model for estimating the indoor temperature from the thermal energy in the room;
an indoor temperature distribution estimation unit that estimates, using a fluid model that estimates temperatures at a plurality of locations in a room from a flow of air in the room and a thermal energy of the air, an indoor temperature distribution estimation unit that estimates: an indoor temperature distribution when a second time longer than the first time has elapsed after the air in the room air whose entire temperature is air-conditioned to the representative temperature estimated by the representative temperature estimating unit is subsequently adjusted by the air volume, the wind direction, and the temperature of the wind determined by the parameter determining unit; and
and an air conditioning condition adjusting unit that obtains a representative value or a temperature of a specific location from the indoor temperature distribution estimated by the indoor temperature distribution estimating unit, and adjusts the air conditioning conditions of the indoor unit and the outdoor unit based on a difference between the obtained representative value or the temperature of the specific location and the set temperature.
2. The control device of an air conditioner according to claim 1,
the indoor temperature distribution estimating unit obtains the temperature and the wind speed at a specific position,
the air-conditioning condition adjusting unit calculates a sensible temperature that the body feels at the specific position based on the temperature of the specific position and the wind speed obtained by the indoor temperature distribution estimating unit, and adjusts the air-conditioning conditions of the indoor unit and the outdoor unit based on a difference between the calculated sensible temperature and the set temperature.
3. The control device of the air conditioner according to claim 1 or 2,
the control device for an air conditioner further includes an arithmetic management unit that specifies the first time to the representative temperature estimation unit, causes the representative temperature estimation unit to calculate the first time, and inputs the representative temperature estimated by the representative temperature estimation unit to the indoor temperature distribution estimation unit.
4. The control device of the air conditioner according to any one of claims 1 to 3,
the control device is connected to the indoor unit and the outdoor unit via a network.
5. An air conditioner is provided with:
the control device of an air conditioner according to any one of claims 1 to 4;
the indoor unit is controlled to operate by the control device; and
and the outdoor unit is controlled by the control device to operate.
6. A control method for an air conditioner including an indoor unit, an indoor thermometer, an outdoor unit, and an outdoor thermometer, wherein the indoor unit and the outdoor unit operate under air conditioning conditions based on a set temperature, a set air volume, and a set wind direction, the control method comprising:
a parameter determination step of determining parameters of an air volume, an air direction, and a temperature of air blown out indoors by the indoor unit, based on the air conditioning condition of the indoor unit, an indoor temperature measured by the indoor thermometer, and an outdoor temperature measured by the outdoor thermometer;
a representative temperature estimation step of estimating a representative temperature representative of an indoor temperature at the time when a first time has elapsed since the air conditioning of the room with the wind at the temperature determined in the parameter determination step, using a thermal energy model that estimates the indoor temperature from the thermal energy in the room;
an indoor temperature distribution estimation step of estimating, using a fluid model for estimating temperatures at a plurality of locations in a room from a flow of air in the room and a thermal energy of the air, an indoor temperature distribution: an indoor temperature distribution when a second time longer than the first time has elapsed after the air in the room, which has been air-conditioned as a whole to the representative temperature estimated in the representative temperature estimating step, has been conditioned by the volume of the wind, the direction of the wind, and the temperature determined in the parameter determining step; and
an air conditioning condition adjusting step of obtaining a representative value or a temperature of a specific position from the indoor temperature distribution estimated in the indoor temperature distribution estimating step, and adjusting the air conditioning conditions of the indoor unit and the outdoor unit based on a difference between the obtained representative value or the temperature of the specific position and the set temperature.
7. A program for causing a computer to execute the control method of claim 6.
CN201980101125.4A 2019-10-07 2019-10-07 Control device for air conditioner, and recording medium Active CN114502894B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/039507 WO2021070227A1 (en) 2019-10-07 2019-10-07 Control device for air conditioner, air conditioner, control method for air conditioner, and program

Publications (2)

Publication Number Publication Date
CN114502894A true CN114502894A (en) 2022-05-13
CN114502894B CN114502894B (en) 2023-05-23

Family

ID=75437051

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980101125.4A Active CN114502894B (en) 2019-10-07 2019-10-07 Control device for air conditioner, and recording medium

Country Status (3)

Country Link
JP (1) JP7258172B2 (en)
CN (1) CN114502894B (en)
WO (1) WO2021070227A1 (en)

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2094703U (en) * 1989-07-31 1992-01-29 三菱电机株式会社 Air conditioner
JP2001099467A (en) * 1999-09-30 2001-04-13 Mitsubishi Electric Corp Control unit for thermal storage device
JP2004069273A (en) * 2002-08-09 2004-03-04 Taisei Corp Indoor temperature prediction method in air conditioning of building, and air conditioning condition optimization method for building
CN101603751A (en) * 2009-07-15 2009-12-16 北京科技大学 A kind of frequency conversion energy-saving control method of refrigeration system
CN102607140A (en) * 2011-01-21 2012-07-25 日立空调·家用电器株式会社 Air-conditioner
EP2559950A2 (en) * 2011-08-19 2013-02-20 Tai-Her Yang Building warmed and pumped secondary fluid as reflux by fluid
CN103884078A (en) * 2014-02-28 2014-06-25 美的集团股份有限公司 Air conditioner, and control method and control system thereof
CN103884075A (en) * 2014-01-06 2014-06-25 浙江工业大学 Computational fluid dynamics and energy prediction hybrid based greenhouse energy-saving control method
CN104698843A (en) * 2015-02-06 2015-06-10 同济大学 Model prediction control based energy saving control method of data center
WO2015084058A1 (en) * 2013-12-03 2015-06-11 삼성전자 주식회사 Apparatus and method for controlling comfort temperature of air conditioning device or air conditioning system
CN105387565A (en) * 2015-11-24 2016-03-09 深圳市酷开网络科技有限公司 Temperature adjusting method and device
EP3082010A1 (en) * 2015-04-17 2016-10-19 Fourdeg Oy A system for dynamically balancing a heat load and a method thereof
CN106322655A (en) * 2016-08-23 2017-01-11 四川科冠电子有限公司 Somatosensory comfortable machine room environment control method
US20170130982A1 (en) * 2015-11-06 2017-05-11 Honeywell Spol. S.R.O. Inferential sensor for internal heat exchanger parameters
CN106920006A (en) * 2017-02-23 2017-07-04 北京工业大学 A kind of subway station air conditioning energy consumption Forecasting Methodology based on ISOA LSSVM
CN107514685A (en) * 2017-08-01 2017-12-26 青岛海尔空调器有限总公司 Wall-hanging air conditioner indoor unit and its control method
JP2018109494A (en) * 2017-01-06 2018-07-12 株式会社東芝 Air conditioning control device, air conditioning control method, and computer program
CN108302719A (en) * 2018-01-29 2018-07-20 广东美的暖通设备有限公司 Control method, device, system and the storage medium of multi-online air-conditioning system
CN108344104A (en) * 2017-12-27 2018-07-31 青岛海尔空调器有限总公司 A kind of indoor temperature prediction technique and air conditioner for air conditioner
WO2018179731A1 (en) * 2017-03-29 2018-10-04 パナソニックＩｐマネジメント株式会社 Environment estimation device and environment estimation method
CN108931302A (en) * 2017-05-29 2018-12-04 阿自倍尔株式会社 Temperature distributing detecting device and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5674193B2 (en) * 2010-09-15 2015-02-25 大成建設株式会社 Air conditioning environment monitoring system
CN110300874B (en) * 2017-03-28 2021-12-24 松下知识产权经营株式会社 Environment control system and environment control method

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2094703U (en) * 1989-07-31 1992-01-29 三菱电机株式会社 Air conditioner
JP2001099467A (en) * 1999-09-30 2001-04-13 Mitsubishi Electric Corp Control unit for thermal storage device
JP2004069273A (en) * 2002-08-09 2004-03-04 Taisei Corp Indoor temperature prediction method in air conditioning of building, and air conditioning condition optimization method for building
CN101603751A (en) * 2009-07-15 2009-12-16 北京科技大学 A kind of frequency conversion energy-saving control method of refrigeration system
CN102607140A (en) * 2011-01-21 2012-07-25 日立空调·家用电器株式会社 Air-conditioner
EP2559950A2 (en) * 2011-08-19 2013-02-20 Tai-Her Yang Building warmed and pumped secondary fluid as reflux by fluid
WO2015084058A1 (en) * 2013-12-03 2015-06-11 삼성전자 주식회사 Apparatus and method for controlling comfort temperature of air conditioning device or air conditioning system
CN103884075A (en) * 2014-01-06 2014-06-25 浙江工业大学 Computational fluid dynamics and energy prediction hybrid based greenhouse energy-saving control method
CN103884078A (en) * 2014-02-28 2014-06-25 美的集团股份有限公司 Air conditioner, and control method and control system thereof
CN104698843A (en) * 2015-02-06 2015-06-10 同济大学 Model prediction control based energy saving control method of data center
EP3082010A1 (en) * 2015-04-17 2016-10-19 Fourdeg Oy A system for dynamically balancing a heat load and a method thereof
US20170130982A1 (en) * 2015-11-06 2017-05-11 Honeywell Spol. S.R.O. Inferential sensor for internal heat exchanger parameters
CN105387565A (en) * 2015-11-24 2016-03-09 深圳市酷开网络科技有限公司 Temperature adjusting method and device
CN106322655A (en) * 2016-08-23 2017-01-11 四川科冠电子有限公司 Somatosensory comfortable machine room environment control method
JP2018109494A (en) * 2017-01-06 2018-07-12 株式会社東芝 Air conditioning control device, air conditioning control method, and computer program
CN106920006A (en) * 2017-02-23 2017-07-04 北京工业大学 A kind of subway station air conditioning energy consumption Forecasting Methodology based on ISOA LSSVM
WO2018179731A1 (en) * 2017-03-29 2018-10-04 パナソニックＩｐマネジメント株式会社 Environment estimation device and environment estimation method
CN108931302A (en) * 2017-05-29 2018-12-04 阿自倍尔株式会社 Temperature distributing detecting device and method
CN107514685A (en) * 2017-08-01 2017-12-26 青岛海尔空调器有限总公司 Wall-hanging air conditioner indoor unit and its control method
CN108344104A (en) * 2017-12-27 2018-07-31 青岛海尔空调器有限总公司 A kind of indoor temperature prediction technique and air conditioner for air conditioner
CN108302719A (en) * 2018-01-29 2018-07-20 广东美的暖通设备有限公司 Control method, device, system and the storage medium of multi-online air-conditioning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
丛晓春;王明红;: "室内可吸入空气品质的指标分析" *

Also Published As

Publication number Publication date
WO2021070227A1 (en) 2021-04-15
JPWO2021070227A1 (en) 2021-04-15
CN114502894B (en) 2023-05-23
JP7258172B2 (en) 2023-04-14

Similar Documents

Publication Publication Date Title
CN110986287B (en) Air conditioner control method and device, storage medium and air conditioner
CN107013978B (en) Air conditioner indoor unit and air supply method thereof
CN107560127B (en) Wall-mounted air conditioner indoor unit and control method thereof
KR101502096B1 (en) Control method of air conditioner
JP7055218B2 (en) Air conditioner, air conditioner control method and program
JP2017172830A (en) Air conditioner
CN105020836B (en) The pleasant climate method and device of air conditioner
WO2019235109A1 (en) Air-conditioning control device, air-conditioning control method, and air-conditioning control system
JP2009030820A (en) Air-conditioning control device and its method
CN107726549B (en) A kind of air-conditioned room real-time humidity projectional technique and air conditioner
CN108644968B (en) Control method for air conditioning system
MX2014001942A (en) Air conditioning apparatus.
CN105157167A (en) Air conditioner refrigeration control method and device
CN108759003A (en) Control method, air conditioner and the computer readable storage medium of air conditioner
US11543300B2 (en) Dynamic temperature compensation of a thermostat for an evaporative cooler system
US20210404695A1 (en) Air-conditioning ventilation system
CN108826599B (en) Control method for air conditioning system
CN109323414A (en) Air conditioner and its control method and control device and electronic equipment
JP7086219B2 (en) Air conditioners, control devices, air conditioning systems, air conditioning control methods and programs
JP6685418B2 (en) Air conditioning system, air conditioning controller, air conditioning method and program
CN114502894B (en) Control device for air conditioner, and recording medium
JP2019086246A (en) Ventilation system, air conditioning system, ventilation method and program
JP3518353B2 (en) Heat pump heating system
US20230332793A1 (en) Air conditioning control device
WO2019159241A1 (en) Air-conditioning system, air-conditioning control device, air-conditioning control method and program

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant