CN114502894B - Control device for air conditioner, and recording medium - Google Patents

Control device for air conditioner, and recording medium Download PDF

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CN114502894B
CN114502894B CN201980101125.4A CN201980101125A CN114502894B CN 114502894 B CN114502894 B CN 114502894B CN 201980101125 A CN201980101125 A CN 201980101125A CN 114502894 B CN114502894 B CN 114502894B
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temperature
unit
indoor
air
room
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CN114502894A (en
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池田孟
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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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
    • F24F11/50—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

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  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

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

Description

Control device for air conditioner, and recording medium
Technical Field
The present invention relates to a control device for an air conditioner, and a recording medium.
Background
As a control device of the air conditioning apparatus, there are the following devices: the indoor temperature change 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 document 1 discloses a control device for a hot water heater, which uses a thermal energy model of a house to estimate a temperature at which the house is heated by the hot water heater, and determines a control parameter of the hot water heater based on the estimated temperature.
Patent document 2 discloses a control device for an air conditioner that uses a fluid model that indicates the flow of air in a room to estimate the temperature of a target point in the room when air is conditioned by the air conditioner, and controls the air conditioner based on the estimated temperature.
Prior art literature
Patent literature
Patent document 1: international publication No. 2016/035121
Patent document 2: japanese patent application laid-open No. 2018-109494
Disclosure of Invention
In order to improve user comfort, it is desirable that the control device of the air conditioner estimate an accurate indoor temperature in a short time and perform air conditioning accurately.
However, the control device described in patent document 1 estimates only the temperature in the case where the temperature of the entire room is assumed to be the same. Therefore, the indoor temperature distribution cannot be estimated. As a result, it is difficult to accurately perform air conditioning.
Further, the control device described in patent document 2 obtains the flow of air in the room from a fluid model, and therefore, an accurate temperature distribution can be predicted, but the calculation takes time and is not practical.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a control device for an air conditioner, and a recording medium, which can estimate an accurate indoor temperature in a short time and perform air conditioning.
The control device of the air conditioner of the invention is the control device of the following air conditioner: the air conditioner is provided with 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 air direction. The control device of the 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 air volume, the air direction, and the temperature of the air blown out from the indoor unit into the room, 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 air representative of the temperature determined by the parameter determining unit has been used to air-condition the indoor and the first time has elapsed, using a thermal energy model for estimating the indoor temperature from the thermal energy of the indoor. The indoor temperature distribution estimating unit estimates temperatures at a plurality of locations in the room using a fluid model that estimates the temperatures at a plurality of locations in the room from the flow of air in the room and the thermal energy of the air: the air in the room whose entire air is adjusted to the representative temperature estimated by the representative temperature estimating unit when the first time elapses is then adjusted by the air volume, the air direction, and the temperature of the air determined by the parameter determining unit, and the indoor temperature distribution when the second time longer than the first time elapses. The air conditioning condition adjustment unit obtains a representative value or a temperature at a specific position from the indoor temperature distribution estimated by the indoor temperature distribution estimation 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 at the specific position and the set temperature. The control device of the air conditioner further includes an operation management unit that assigns a first time to the representative temperature estimation unit, thereby causing 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.
According to the configuration of the present invention, the representative temperature estimating unit estimates the representative temperature representing the indoor temperature at the time when the first time has elapsed using the thermal energy model, and the indoor temperature distribution estimating unit estimates the indoor temperature distribution at the time when the second time longer than the first time has elapsed after the air volume, the air direction, and the temperature of the air in the room whose entire air is adjusted to the representative temperature estimated by the representative temperature estimating unit are adjusted 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 of a control device according to embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of an indoor unit of 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 illustrating an example of the direction of wind blown out from an indoor unit in the 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 wind blown out from an indoor unit provided in an air conditioner as a control target object of a 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 included in the control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 7 is a schematic view of heat conduction data stored in a storage unit included in the 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 included in the control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 9 is a schematic diagram of indoor unit wind distribution data stored in a storage unit included in the control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 10 is a schematic view of determination data stored in a storage unit included in the control device for an air conditioner according to embodiment 1 of the present invention.
Fig. 11 is a schematic view of a unit cell of a room used in an operation by a temperature distribution estimating unit included in a control device of an air conditioner according to embodiment 1 of the present invention.
Fig. 12 is a hardware configuration diagram of a control device for 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 a cell when a temperature distribution is estimated in an 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 of the air conditioner according to embodiment 2 of the present invention.
Fig. 16A is a conceptual diagram of each area of a room in which a representative value is obtained when the air-conditioning condition adjustment unit provided in the modification of the control device of the air-conditioning apparatus according to embodiment 1 of the present invention adjusts the setting data.
Fig. 16B is a graph showing the change in average temperature in each region.
(symbol description)
1A: a control device; 10: a parameter determination unit; 20: a representative temperature estimation 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: wind distribution data of the indoor unit; 55: judging data; 60: a wireless communication module; 70: a network; 100: an air conditioner; 110: a refrigerant tube; 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 board; 140: a remote controller; 141: selecting a button; 142: a temperature setting button; 143: an air quantity 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: a region; p1, P2: during which time; t1 and T2: average temperature; w: and (5) wind.
Detailed Description
Hereinafter, a control device for an air conditioner, and a recording medium according to an embodiment 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 1)
The control device of the air conditioner according to embodiment 1 is as follows: in order to make the indoor temperature approach the set temperature set by the user, the indoor temperature when the air conditioner performs air conditioning is estimated, and the estimation result is fed back to the air conditioner. In this control device, in order to accurately estimate the indoor temperature in a short time, a thermal energy model of a room in which an indoor unit is provided and a fluid model of air in the room are used.
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 will be simply referred to as a control device.
Fig. 1 is a block diagram of an air conditioner 100 as a control target of a control device 1A according to embodiment 1. Fig. 2 is a cross-sectional view of the indoor unit 130 included in the air conditioner 100. Fig. 3 is a conceptual diagram illustrating an example of the direction of wind blown out by the indoor unit 130. Fig. 4 is a conceptual diagram of another example of the direction of wind blown out by the indoor unit 130. In fig. 3 and 4, the direction of the wind blown out by the indoor unit 130 is shown by surrounding the area blown by the wind at a specific wind speed with a dotted line for easy understanding.
As shown in fig. 1, the air conditioner 100 is connected by a refrigerant pipe 110, and includes a compressor 121 through which a 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 has a motor 125, and compresses a 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 outdoor air is blown by a fan 126. Thereby, the refrigerant flowing through the outdoor heat exchanger 123 exchanges heat with the 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 provided indoors, and air in the room is blown by the fan 132. Thereby, the refrigerant flowing through the indoor heat exchanger 131 exchanges heat with the 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, and thereby cools or heats the air in the room.
Specifically, when the four-way valve 122 is switched to one direction, the refrigerant is converted into a high-temperature and high-pressure gas by the compressor 121, and then flows to the outdoor heat exchanger 123. The refrigerant is cooled by heat exchange with the outdoor air in the outdoor heat exchanger 123, and is then expanded by the expansion valve 124 to become a low-temperature liquid. The refrigerant, which has been cooled to a low temperature and is in a liquid state, 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 the air in the room. As a result, 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 the indoor air in the indoor heat exchanger 131 to be cooled, and is further expanded by the expansion valve 124 to be a low-temperature liquid. Then, the refrigerant flows into the outdoor heat exchanger 123, exchanges heat with the outdoor air, and returns to the compressor 121. In this case, when the refrigerant exchanges heat with the indoor air in the indoor heat exchanger 131, the refrigerant releases heat to the indoor air. As a result, the interior of the house is heated.
In this way, the air conditioner 100 operates in cooling or heating by switching the four-way valve 122. In order to achieve this operation according to the intention of the user, the air conditioner 100 includes a remote controller 140, and an indoor unit control unit 150 and an outdoor unit control unit 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 a cooling or heating operation mode of the air conditioner 100, a temperature setting button 142 for a user to set a target temperature of 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 further includes a control unit 145 having an MPU (micro processing unit) (Micro Processing Unit). When any one 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, temperature, air volume, and air direction set by the user by pressing the selection button 141, temperature setting button 142, air volume setting button 143, and air direction setting button 144 are referred to as a set mode, a set temperature, a set air volume, and a set air direction.
The indoor unit control unit 150 controls the rotation speed of the fan 132 based on the setting data, each 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. Thereby, the indoor unit control unit 150 adjusts the air volume of the fan 132. As a result, the heat quantity of the air that is transferred from the refrigerant flowing through the indoor heat exchanger 131 to the indoor space 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, each 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 a wind direction control plate 133, and the direction of the wind W generated by the fan 132 can be changed by tilting the plate surface in the up-down direction of the wind direction control plate 133. The indoor unit 130 includes a wind direction control plate 134, and the direction of the wind W generated by the fan 132 can be changed with respect to the horizontal direction by tilting the plate surface of the wind direction control plate 134 in the horizontal 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 each 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, each time the indoor unit control unit 150 receives setting data of any one of the setting mode, the setting temperature, the setting air volume, and the setting air direction, it sends the setting data to the outdoor unit control unit 160.
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 user setting mode.
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 portion 160 adjusts the degree of decompression 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 control unit 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 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 sends a measurement result 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 wind 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 an indoor thermometer described in the present specification.
The indoor unit control unit 150 transmits the data of the indoor temperature sensor 170 to the outdoor unit control unit 160. The outdoor unit control unit 160 controls the rotation frequency of the motor 125, the opening degree of the expansion valve 124, and the rotation speed of the fan 126 of the compressor 121 based on not only the setting data but also the indoor temperature data.
In this way, in the air conditioner 100, the outdoor unit 120 and the indoor unit 130 operate based on the data of the set mode, the set temperature, the set air volume, the set air direction, and the indoor temperature set to the remote controller 140. Thus, the outdoor unit 120 and the indoor unit 130 operate in the setting mode set by the user. The outdoor unit 120 and the indoor unit 130 adjust the indoor air with the set temperature, the set air volume, and the set air direction set by the user as targets.
However, the size of the room to be air-conditioned often differs for each room in which the air conditioner 100 is provided. 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. In addition, the indoor temperature at the location where the user is located in the room may not reach the set temperature. In view of such a background, it is desirable to simulate in advance what temperature the temperature at an arbitrary position in the room is at the target time, and to control the operation of the air conditioner 100 according to the result.
Accordingly, the air conditioner 100 is provided with a control device 1A, and the control device 1A estimates a temperature distribution in the room after the operation of the air conditioner 100 according to the set temperature, the set air volume, and the set air direction of the user, and adjusts the operation of the air conditioner 100 based on the estimation result. Next, the structure 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 conduction data 52, the room data 53, the indoor unit wind 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 view of the cells 210 of the room 200 used in the calculation by the temperature distribution estimating unit 30 included in the control device 1A. Fig. 12 is a hardware configuration diagram of the control device 1A. In fig. 5, for 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 that the indoor unit 130 blows out indoors; a representative temperature estimating unit 20 for estimating a representative temperature in the room after a predetermined time when the room is air-conditioned by the wind of the wind characteristic parameter determined by the parameter determining unit 10; a temperature distribution estimating unit 30 for estimating a subsequent indoor temperature distribution when air conditioning is performed based on the temperature of the representative point in the room estimated by the representative temperature estimating unit 20; an air conditioning condition adjustment unit 40 for adjusting the air conditioning conditions of the outdoor unit 120 and the indoor unit 130 based on the temperature distribution estimated by the temperature distribution estimation 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 determination unit 10 is a unit that determines parameters necessary for operation according to the air conditioning conditions of the outdoor unit 120 and the indoor unit 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, instead of using an operation model for estimating the indoor temperature based on the air conditioning conditions of the outdoor unit 120 and the indoor unit 130. Therefore, in the calculation, the air conditioning conditions of the outdoor unit 120 and the indoor unit 130 are not required, and the parameters of heat energy and fluid are required. The parameter determination unit 10 determines the parameter according to the air conditioning conditions of the outdoor unit 120 and the indoor unit 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 using the wireless communication modules 60 and 151. The parameter determination unit 10 acquires data of the air conditioning conditions of the outdoor unit 120 and the indoor unit 130 from the indoor unit control unit 150.
Here, the air conditioning conditions of the outdoor unit 120 and the indoor unit 130 refer to the switching direction of the four-way valve 122 provided in the outdoor unit 120, the rotation 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 wind direction control plates 133 and 134.
The air conditioner 100 includes an outdoor temperature sensor 180 for measuring an outdoor temperature and transmitting the outdoor temperature to the indoor unit controller 150, in addition to the indoor temperature sensor 170. The parameter determination 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 data table 51 obtained by an experiment is stored in advance in the storage unit 50. As shown in fig. 6, the data table 51 corresponds to the air conditioning conditions, the indoor temperature, and the outdoor temperature, and the wind characteristic parameters of the wind blown into the room by the indoor unit 130 at these air conditioning conditions, indoor temperature, and outdoor temperature.
Here, the wind characteristic parameters are parameters for specifying the amount of wind, the direction of wind, and the 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 wind characteristic parameters corresponding to the acquired air conditioning conditions, 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 the representative temperature in the room at the initial stage when the air conditioner 100 conditions air. Since the temperature distribution estimating unit 30 described later estimates the indoor temperature using the fluid model, the amount of calculation becomes large and the calculation time becomes long when the entire operation time of the air conditioner 100 is calculated. 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 computation and to shorten the computation time.
Here, the thermal energy model is a model for estimating the indoor temperature from the thermal energy of the room 200. At the temperature T of the room to be outdoors out Relative to the indoor temperature T in The relative temperature of (2), i.e. the temperature difference, is set to T d The elapsed time from the start of operation of the air conditioner 100 is t, the thermal resistance from the indoor to the outdoor is R, the heat capacity of the indoor is C, the amount of heat supplied to the indoor by the indoor unit, that is, the heat diffused into the indoor is Q, the density of air is ρ, and the specific heat of air is C p Let the air volume of the air blown out from the indoor unit into the room be A q Setting the temperature of the wind to T W Setting the indoor temperature as T in In the case of (2) by the following formula 1. Equation 2 represents a thermal energy model.
[ number 1]
Figure GDA0003576910170000111
[ number 2]
Q(t)＝ρC p A q (T w -T in ) Equation 2
Further, the heat capacity C, the thermal resistance R, and the heat quantity Q of the formula 1 are expressed in W/. Degree.C.and DEG C/W, W. Temperature difference T d Is in units of degrees Celsius. Density ρ of air, specific heat C of air of formula 2 p Air volume A q Is in kg/m 3 、(W·s)f/(kg·℃)、m 3 /sec. Temperature T of wind W Indoor temperature T in Is in units of degrees Celsius. The unit of the elapsed time t of equations 1 and 2 is seconds.
In addition, the thermal conductivity of the wall of the room 200 is h, the wall area of the room 200 is S, the specific heat of the wall is c, and the volume of the wall is V o In the case of (2), the thermal resistance R and the thermal capacity C of equation 1 are expressed by the following equations 3 and 4.
[ number 3]
Figure GDA0003576910170000112
[ number 4]
C＝cV o Equation 4
Here, the unit of the thermal conductivity h and the wall area S of equation 3 is W/(m) 2 ·℃)、m 2 . Specific heat c of wall, volume V of wall of equation 4 o The unit of (C) is W/(. Degree.C.m) 3 )、m 3 。
Specifically, the representative temperature estimating unit 20 using the thermal energy model will be described, and the representative temperature estimating unit 20 obtains the temperature difference T of the thermal energy model d The indoor temperature and the outdoor temperature at the time of determining the parameter are acquired from the parameter determining unit 10. Then, the representative temperature estimating unit 20 subtracts the outdoor temperature from the indoor temperature to obtain Temperature difference T of heat energy model d Is set to be a constant value. The representative temperature estimating unit 20 sets the acquired indoor temperature as the indoor temperature T of the thermal energy model in 。
Further, the representative temperature estimating unit 20 obtains the air volume a of the thermal energy model q Temperature T of wind W Is an initial value of the wind characteristic parameter of the reception parameter determining unit 10. The representative temperature estimating unit 20 uses the air volume of the wind characteristic parameter and the air temperature as the air volume A of the thermal energy model q Temperature T of wind W 。
The thermal conductivity data 52 shown in fig. 7 including the thermal conductivity, wall area, specific heat of the wall, volume of the wall, density of air, and specific heat of air of the wall of the room 200 in which the indoor unit 130 is provided is stored in the storage unit 50. The representative temperature estimating unit 20 obtains the density ρ of air and the specific heat C of air of the thermal energy model p The heat conduction data 52 is read from the storage section 50. Then, the representative temperature estimating unit 20 uses the data of the density of the air and the specific heat of the air included in the read thermal conduction data 52 as the density ρ of the air and the specific heat C of the air of the thermal energy model p 。
The representative temperature estimating unit 20 obtains thermal resistance and thermal capacity by using the thermal conductivity of the wall, the wall area, the specific heat of the wall, the data of the volume of the wall, and equations 3 and 4 included in the read thermal conductivity data 52. Then, the representative temperature estimating unit 20 sets 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 T d The T thus obtained in The parameters and the thermal energy model are calculated from the operation start t of the air conditioner 100 0 Time t when a certain time elapses 1 Lower indoor temperature T in And an outdoor temperature T out Temperature difference T of (2) d (t 1 ). The representative temperature estimating unit 20 estimates the temperature difference T d (t 1 ) Plus the outdoor temperature T out Thereby obtaining the indoor temperature T after a certain time in (t 1 ). The representative temperature estimating unit 20 estimates the room temperature T in (t 1 ) As a representative temperature representative of the indoor temperature, the representative 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 in order to estimate an accurate temperature distribution. Thus, the temperature distribution estimating unit 30 estimates the temperature distribution in the room at the time after estimation by the representative temperature estimating unit 20. The temperature distribution estimating unit 30 is an example of the indoor temperature distribution estimating unit described in the present specification.
Here, the fluid model is a model for estimating the temperature of an arbitrary portion in the room from the flow of air in the room and the thermal energy of the air, and estimating the temperature distribution in the room. The pressure of the air in the room is p, the flow velocity vector of the air is v= (u, V, w), and the room temperature is T in In the above, the fluid model is represented by the following equations 5 to 8.
[ number 5]
Figure GDA0003576910170000131
[ number 6]
Figure GDA0003576910170000132
[ number 7]
Figure GDA0003576910170000133
[ number 8]
Figure GDA0003576910170000134
Re in equation 5 and equation 6 is the Reynolds number. Pr of equation 6 is the Planet 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 the 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 in the read room data 53. Then, the temperature distribution estimating unit 30 obtains the center coordinates of each cell 210 in the case where the room 200 shown in fig. 15 is divided by the cube-shaped cell 210, based on the obtained shape and size. Thereby, the temperature distribution estimating unit 30 determines the temperature estimating portion of the room 200. The center coordinates of each cell 210 are hereinafter referred to as cell coordinates.
In order to determine the indoor temperature T of the fluid model expressed by the formulas 5 to 8, the temperature distribution estimating unit 30 in The representative temperature in the room obtained by the thermal energy model is obtained from the representative temperature estimating unit 20. Then, the temperature distribution estimating unit 30 assigns the coordinates of each cell 210 to the representative temperature obtained from the temperature distribution estimating unit 30. Thus, the temperature distribution estimating unit 30 assumes that the temperature of the air of all the cells 210 is the representative temperature obtained from the temperature distribution estimating unit 30. Thereby, the temperature distribution estimating unit 30 determines the temperature T of the fluid model for all the cells 210 in Is set to be a constant value.
Further, the temperature distribution estimating unit 30 determines the boundary condition and the 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 of the storage unit 50 includes outlet position data and inlet position data indicating 3-dimensional coordinates of the outlet and inlet of the air of the indoor unit 130 in the room 200. The temperature distribution estimating unit 30 reads the outlet position data and the inlet position data from the room data 53, and determines the cell coordinates of the cells 210 in which the outlet and inlet are arranged from the data.
The temperature distribution estimating unit 30 receives the data of the air volume, the air direction, and the air speed of the air outlet, which are the wind characteristic parameters, from the parameter determining unit 10. On the other hand, the storage unit 50 stores indoor unit wind distribution data 54 shown in fig. 9, and the indoor unit wind distribution data 54 includes experimentally obtained outlet wind distribution data indicating a wind distribution in the vicinity of the outlet and intake wind distribution data indicating a wind distribution in the vicinity of the intake. The temperature distribution estimating unit 30 reads the indoor unit wind distribution data 54 from the storage unit 50.
Here, the parameter determination unit 10 determines the wind characteristic parameters, that is, the data of the amount of wind, the direction of wind, and the speed of wind blown out from the outlet, based on the amount of wind, the direction of wind, and the speed of wind according to the air conditioning conditions in 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 air direction, and the air speed in the data table 51.
The temperature distribution estimating unit 30 determines outlet air distribution data and intake air distribution data corresponding to the received outlet air volume, air direction, and air speed data based on the outlet air volume, air direction, and air speed data received from the parameter determining 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 outlet and the inlet by using the determined outlet wind distribution data and the intake wind distribution data and the cell coordinates determined to be provided with the outlet and the inlet.
The temperature distribution estimating unit 30 obtains a flow velocity vector V of air from the obtained wind direction and wind velocity, and assigns the flow velocity vector V to cell coordinates of the cells 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 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 estimating unit 30 obtains the initial value of the flow velocity vector V of the fluid model expressed by the formulas 5 to 8 and the boundary condition 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 dynamic pressure from the magnitude of the flow velocity vector V allocated to each cell 210. Then, the temperature distribution estimating unit 30 sets the static pressure to 1 atmosphere, and obtains the total pressure p of each cell 210. The temperature distribution estimating unit 30 assigns the obtained pressure p of each cell 210 to the cell coordinates of each cell 210. Thus, the temperature distribution estimating unit 30 obtains an initial value of the pressure p of the fluid model for all the cells 210.
The temperature distribution estimating unit 30 estimates the temperature T of each cell 210 obtained by the above-described processing in The flow velocity vector V and the pressure p are set as 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. Thereby, the temperature distribution estimating unit 30 obtains the temperature distribution in the room at the target time. The temperature distribution estimating unit 30 sends the obtained temperature distribution, that is, the temperature of the air of 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 a predetermined time representing the calculation performed by the temperature estimating unit 20 from the target time, but the time obtained by the subtraction is an example of the second time described in the present specification. The temperature distribution estimating unit 30 is an example of the indoor temperature distribution estimating unit described in the present specification.
The air-conditioning condition adjustment unit 40 receives the temperature data of the air of all the cells 210 from the temperature distribution estimation unit 30, and determines whether or not the temperature of the air of the cell 210 located at the set position among all the cells 210 is within an allowable range allowable from the set temperature at the target time.
Specifically, the air conditioning condition adjustment unit 40 acquires 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 the room where the room temperature is to be determined and a threshold value of a temperature difference between the room temperature and the set temperature. The air conditioning condition adjustment unit 40 reads the determination data 55 from the storage unit 50, and identifies the cells 210 including the specific position based on the coordinates of the specific position of the read determination data 55. The air conditioning condition adjustment unit 40 obtains the absolute value of the temperature difference between the indoor temperature of the specified cell 210 and the set temperature included in the acquired set data. The air conditioning condition adjustment unit 40 determines whether the absolute value obtained exceeds a threshold.
When it is determined that the absolute value exceeds the threshold, 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 adjustment unit 40 adjusts the set temperature up or down by an amount corresponding to the temperature difference. Then, the air conditioning condition adjuster 40 transmits the corrected set temperature to the indoor unit controller 150 via the wireless communication modules 60 and 151.
When the absolute value is determined not to exceed the threshold, the air conditioning condition adjustment unit 40 does not send 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 rotation frequency of the motor 125, the opening degree of the expansion valve 124, and the rotation speed of the fan 126 included in the compressor 121 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 executing an air conditioner control program stored in the storage unit 50 by the CPU 300.
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, which has a CPU300 and an I/O port 310 connected to the air conditioner 100 via the network 70.
Fig. 13 is a flowchart of the air conditioner control process performed 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, the control device 1A determines whether or not the indoor unit control unit 150 has received the 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.
When determining that the indoor unit control unit 150 has not received the setting data (no in step S1), the control device 1A returns to the state before step S1.
On the other hand, when it is determined that the indoor unit control unit 150 has received the setting data (yes in step S1), the control device 1A acquires the air conditioning conditions of the outdoor unit 120 and the indoor unit 130, that is, the switching direction of the four-way valve 122 provided in the outdoor unit 120, the rotation 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 wind direction control plates 133 and 134. In addition, the control device 1A acquires the indoor temperature T in Outdoor temperature T out (step S2).
Next, the control device 1A determines a wind characteristic parameter to be 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 parameters of the indoor units 130 based on the data table 51 and the air conditioning conditions, indoor temperatures, and outdoor temperatures acquired in step S2. Further, steps S2 and S3 are one example of the parameter determination step described in the present specification.
After determining the wind characteristic parameter, the control device 1A estimates the indoor representative temperature using the thermal energy model (step S4).
Specifically, the control device 1A reads the heat conduction data 52 from the storage unit 50, and calculates the indoor-to-outdoor thermal resistance R and the indoor heat capacity C of the equations 3 and 4 using the read heat conduction data 52. The control device 1A calculates the thermal resistance and the heat capacity, and the room temperature T obtained in step S2 in Outdoor temperature T out And the wind characteristic parameter determined in step S3 is applied to the above-described equations 1 and 2 of the thermal energy model, and a time t when a predetermined time has elapsed since the start of the operation of the air conditioner 100 is calculated 1 Lower indoor temperature T in And an outdoor temperature T out Temperature difference T of (2) d (t 1 )。
Here, as the fixed time, a time shorter than the target time for 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. In addition, for a certain period of time, it is preferable that the temperature difference T is a temperature difference T in order to shorten the calculation time representing the whole of the temperature estimating unit 20 and the temperature distribution estimating unit 30 d (t 1 ) The saturation is long enough. The fixed time is preferably 2 to 3 times the time constant expressed by the product of the thermal resistance R and the thermal capacity C expressed by the formulas 3 and 4, for example. Further, a certain time is an example of the first time described in this specification.
Temperature difference T obtained by calculation using thermal energy model d (t 1 ) As described above is the outdoor temperature T out (t 0 ) Relative to the indoor temperature T in Is a relative temperature of (a) and (b). Thus, the control device 1A adds the outdoor temperature T acquired in step S2 to the calculated temperature difference out (t 0 ) Calculating the indoor temperature T when a certain time has elapsed from the start of operation in (t 1 ). Then, the control device 1A sets the indoor temperature T in (t 1 ) As a representative temperature within the representative chamber. Thus, the control device 1A estimates the representative temperature. In addition, step S4 is a representative temperature as referred to in the present specification One example of a degree speculation step.
Next, the control device 1A estimates the temperature distribution in the room using the fluid model (step S5).
Describing in detail, the control device 1A estimates the temperature distribution by solving the above-described equations 5 to 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 obtains a flow velocity vector of 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 wind distribution data 54 stored in the storage unit 50. The control device 1A distributes the obtained pressure to each cell 210.
Next, the control device 1A solves equation 5-equation 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 predetermined 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 elapses.
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 head, body, foot, etc. of the human body. For example, the control device 1A is assumed to divide the room 200 by a 20cm cube to obtain the center coordinates of each cell 210.
The control device 1A performs calculation using a time step Δt in which the brown number expressed by equation 9 is 1 or less. For example, when the cell size is 20cm and the wind speed of the outlet of the indoor unit 130 is 5 m/sec, the control device 1A sets the time step Δt to 0.04 sec or less.
[ number 9]
Figure GDA0003576910170000191
When a three-dimensional object such as furniture or a refrigerator is present in the room 200, the three-dimensional object may be set to the inner wall shape of the room 200, and three-dimensional data of the room 200 in which the three-dimensional object is set to the inner wall shape 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 assuming that the room 200 having the three-dimensional object in the shape of the inner wall is divided by the cells 210 in the shape of a cube. 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 the 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 from the coordinates of the specific position included in the determination data 55. The control device 1A determines whether or not the absolute value of the temperature difference between the indoor temperature of the cell 210 and the set temperature exceeds a threshold value.
When determining that the absolute value of the temperature difference exceeds the threshold value (yes in step S6), the control device 1A calculates a temperature difference, which is a relative temperature of the indoor temperatures with respect to the set temperature, of the cells 210, and corrects the data of the set temperature in accordance with the temperature difference (step S7). Next, the control device 1A transmits the corrected data of the 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 step described in the present specification.
On the other hand, when it is determined that the absolute value of the temperature difference does not exceed the threshold value (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 present air conditioner control process, and returns to step S1 in order to prepare the input of the next setting data to the remote controller 140 by the user.
In step S7, the control device 1A corrects the data of the set temperature in accordance with the temperature difference between the set temperature and the indoor 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 according to the temperature difference between the set temperature and the indoor temperature. In this case, the relation between the air volume set before correction, the set temperature, and the temperature difference and the air volume to be set may be obtained by an experiment, and a data table created from the experiment may be 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, when there is a temperature difference between the set temperature and the indoor temperature and the set wind direction is not in the direction from the outlet of the indoor unit 130 toward the specific position in step S6, the control device 1A may correct the set wind direction to the direction.
The flow of the air conditioner control process is continued until the air conditioner control program is stopped by the information processing apparatus. Thus, the control device 1A continuously executes simulation of the indoor temperature distribution and adjustment of the setting data based on the result thereof.
As described above, since 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, the indoor temperature distribution can be accurately estimated in a short time.
In addition, the air conditioning condition adjustment unit 40 corrects the data of the set temperature using the estimated indoor temperature distribution, so that the air conditioner 100 can perform air conditioning more accurately.
(embodiment 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 thereto. The control device according to embodiment 2 calculates a body temperature from the estimated indoor temperature, and corrects the data of the set temperature based on the difference between the calculated body temperature and the set temperature. The control device according to embodiment 2 will be described below with reference to fig. 15. In embodiment 2, a structure different from that of embodiment 1 will be described.
Fig. 15 is a block diagram of a remote controller 190 included in the air conditioner 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/off an adjustment mode in which the control device adjusts the indoor temperature to the body 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 section 150.
In the control device, the air conditioning condition adjuster 40 receives the on/off of the adjustment mode from the indoor unit controller 150.
On the other hand, as described in embodiment 1, the temperature distribution estimating unit 30 estimates the flow velocity vector of the air in the operation chamber when the temperature distribution is estimated by 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. Thereby, 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 somatosensory temperature of the person in the cell 210 at the determined specific position based on the indoor temperature and the wind speed estimated by the temperature distribution estimating unit 30. In addition, since the temperature distribution estimating unit 30 does not predict the humidity in the calculation of the body temperature, a linke (line) formula is used. The linke equation is an equation for determining a somatosensory temperature from a wind speed and an air temperature.
The air conditioning condition adjustment unit 40 obtains a relative value of the calculated body temperature sensor 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 adjustment unit 40 adjusts the set temperature up or down by an amount corresponding to the relative value.
The air conditioning condition adjuster 40 transmits the corrected data of the set temperature to the indoor unit controller 150. Thus, the control device brings the temperature of the air existing at a specific position in the room close to the temperature of the temperature sensing device.
As described above, the control device according to embodiment 2 includes the air-conditioning condition adjustment unit 40, and the air-conditioning condition adjustment unit 40 calculates the body temperature at a specific position from the indoor temperature and the wind speed estimated by the temperature distribution estimation unit 30, and adjusts the set temperature of the air conditioner 100 based on the body temperature. Therefore, the control device can bring the indoor temperature and the temperature of the air conditioner 100 close to each other when air conditioning is performed. As a result, the control device can improve user comfort.
While the control devices 1A and 1B, the air conditioner 100, and the recording medium of the air conditioner according to the embodiment of the present invention have been described above, the control devices 1A and 1B, the air conditioner 100, and the recording medium are not limited to the above embodiments. For example, in embodiments 1 and 2, the air conditioning condition adjustment unit 40 adjusts the setting temperature, that is, the setting data, based on the difference between the indoor temperature at the specific position in the room 200 estimated by the temperature distribution estimation 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 adjuster 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 adjuster 40 may directly adjust the rotation 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 wind 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 rotation frequency of the compressor 121, the opening degree of the expansion valve 124, the rotation speeds of the fans 126 and 132, and the inclinations of the wind direction control plates 133 and 134 to be corrected. Then, the air conditioning condition adjustment unit 40 may read the data from the storage unit 50, and determine the rotation frequency of the compressor 121, the opening degree of the expansion valve 124, the rotation speeds of the fans 126 and 132, and the inclinations of the airflow direction control plates 133 and 134 from the data. The air conditioning condition adjustment 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, which is a numerical value that is a scale 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 the representative value is obtained when the air-conditioning condition adjustment unit 40 adjusts the setting data. Fig. 16B is a graph showing the change in average temperature in each of the areas A1 and A2. Fig. 16B shows the estimated change in the indoor temperature in the period P1 representing the estimation of the indoor temperature in the initial stage by the temperature estimating unit 20 and in the period P2 representing the estimation of the indoor temperature by the temperature distribution estimating unit 30. The estimated indoor temperature is an average temperature of the entire room 200 during the 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 the temperature distribution into the average temperature T1 of the region A1 and the average temperature T2 of the region A2.
Regarding the area A1 or A2 when the room 200 shown in fig. 16A is divided into 2, the air-conditioning condition adjusting unit 40 may determine the average temperature shown in fig. 16B as a representative value of the indoor temperature distribution of the area A1 or A2. Then, the air conditioning condition adjustment unit 40 may adjust the set temperature based on a 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 region specification data indicating which region average temperature is used to adjust the set temperature. From these data, the temperature distribution estimating unit 30 determines the area, and the air conditioning condition adjusting unit 40 obtains the average temperature of the determined area. The representative value of the indoor temperature distribution means, for example, a central value or 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 estimate the representative temperature by the representative temperature estimating unit 20, and then directly output the representative temperature to the temperature distribution estimating unit 30, and the temperature distribution estimating unit 30 estimates the temperature distribution in the room by using the representative temperature. However, the control devices 1A and 1B are not limited thereto. The control devices 1A and 1B may further include an arithmetic management unit that calculates a predetermined time period by the representative temperature estimation unit 20 and inputs the representative temperature estimated by the representative temperature estimation unit 20 to the temperature distribution estimation unit 30. Here, the specified time is a time specified by the operation management unit, and has a period corresponding to the fixed time described in embodiment 1.
In embodiments 1 and 2, the parameter determination unit 10 uses the data table 51 to determine wind characteristic parameters corresponding to the air conditioning conditions, indoor temperatures, and outdoor temperature data of the outdoor unit 120 and the indoor unit 130. However, the parameter determination unit 10 is not limited thereto. The parameter determination unit 10 may determine the respective parameters of the air volume, the air direction, and the temperature of the air blown out from the indoor unit 130 into the room, 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 a temperature difference between the indoor temperature and the outdoor temperature, the parameter determination unit 10 may determine the parameter using an approximate function indicating the amount of wind, the direction of wind, and the temperature corresponding to the specific air conditioning condition. In this case, an approximation function indicating the air volume, the air direction, and the temperature corresponding to the air conditioning conditions of the indoor unit 130 may be obtained in advance through experiments, and the obtained approximation function may be stored in the storage unit 50. Then, the parameter determination section 10 can read out the approximation function from the storage section 50.
In embodiments 1 and 2, an 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, digital versatile disk), or an MO (Magneto-Optical Disc), and the program may be installed in a computer to constitute 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 a communication network of the internet, and the program may be downloaded, for example, in a manner of being superimposed on a carrier wave.
In the case where the respective OSs (Operating systems) share and implement the air conditioner control program, or in the case where the OS cooperates with an application program to implement the air conditioner control program, the air conditioner control program may be distributed by being stored in a medium in a portion other than the OS, or may be downloaded.
The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the invention. The above embodiments are for the purpose of illustrating the present invention, and do not limit the scope of the present invention. That is, the scope of the present invention is not shown by the embodiments but by the claims. Further, various modifications performed within the scope of the claims and the meaning of the invention equivalent thereto are regarded as being within the scope of the invention.

Claims (5)

1. An air conditioner control device comprising 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 air direction, the air conditioner control device comprising:
a parameter determination unit that determines 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 that estimates a representative temperature representing an indoor temperature when the air of the room is conditioned with the air of the temperature determined by the parameter determining unit and a first time elapses, using a thermal energy model that estimates an indoor temperature from thermal energy of the room;
an indoor temperature distribution estimating unit that estimates temperatures at a plurality of locations in the room using a fluid model that estimates the temperatures at a plurality of locations in the room from the flow of air in the room and the thermal energy of the air: an indoor temperature distribution when the air in the room, the entire of which is air-conditioned to the representative temperature estimated by the representative temperature estimating unit when the first time has elapsed, is then conditioned by the parameter determining unit when a second time longer than the first time has elapsed; and
an air conditioning condition adjustment unit that obtains a representative value or a temperature at a specific position from the indoor temperature distribution estimated by the indoor temperature distribution estimation unit, 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 at the specific position and the set temperature, the representative value being a value that becomes a scale of the indoor temperature distribution,
The control device of the air conditioner further includes an operation management unit that assigns the first time to the representative temperature estimation unit, thereby causing 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.
2. The control device of an air conditioner according to claim 1, wherein,
the indoor temperature distribution estimating unit obtains a temperature and a wind speed at a specific position,
the air conditioning condition adjustment unit calculates a body temperature sensed by the body at the specific position based on the temperature at the specific position and the wind speed obtained by the indoor temperature distribution estimation unit, and adjusts the air conditioning conditions of the indoor unit and the outdoor unit based on a difference between the calculated body temperature and the set temperature.
3. The control device of an air conditioner according to claim 1 or 2, wherein,
the control device is connected with the indoor unit and the outdoor unit through a network.
4. An air conditioner is provided with:
a control device of an air conditioner according to any one of claims 1 to 3;
The indoor unit is controlled by the control device to act; and
the outdoor unit is controlled by the control device.
5. A recording medium storing a program for causing a computer controlling an air conditioner that includes an indoor unit, an indoor thermometer, an outdoor unit, and an outdoor thermometer and operates under air conditioning conditions based on a set temperature, a set air volume, and a set air direction to function as: a parameter determination unit that determines 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 that estimates a representative temperature representing an indoor temperature when the air of the room is conditioned with the air of the temperature determined by the parameter determining unit and a first time elapses, using a thermal energy model that estimates an indoor temperature from thermal energy of the room;
an indoor temperature distribution estimating unit that estimates temperatures at a plurality of locations in the room using a fluid model that estimates the temperatures at a plurality of locations in the room from the flow of air in the room and the thermal energy of the air: an indoor temperature distribution when the air in the room, the entire of which is air-conditioned to the representative temperature estimated by the representative temperature estimating unit when the first time has elapsed, is then conditioned by the parameter determining unit when a second time longer than the first time has elapsed;
An air conditioning condition adjustment unit that obtains a representative value or a temperature at a specific position from the indoor temperature distribution estimated by the indoor temperature distribution estimation 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 at the specific position and the set temperature, the representative value being a value that is a scale of the indoor temperature distribution; and
and a calculation management unit configured to calculate the first time by the representative temperature estimation unit by designating the first time to the representative temperature estimation unit, and input the representative temperature estimated by the representative temperature estimation unit to the indoor temperature distribution estimation unit.
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