A kind of master controller and air conditioner control method

Abstract

The application discloses a central controller and an air conditioner control method, and relates to the technical field of air conditioners, and aims to solve the problems of low operation efficiency and high energy loss of a multi-split central air conditioning system. The method comprises the following steps: determining a user portrait of a user using a multi-split central air conditioner, wherein the user portrait is used to indicate the operation habit of the user when the user uses the multi-split central air conditioner; and determining the capacity output gear of an outdoor unit according to the user portrait, the actual indoor environment parameter and the target indoor environment parameter of the environment where the multi-split central air conditioner is located, wherein different capacity output gears correspond to different output capacities in the outdoor unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, and in particular to a central controller and an air conditioner control method. BACKGROUND

[0002] In order to meet people's requirements for living comfort, the functions of a household multi-split central air conditioner are becoming more and more complex, which makes the operation of the household multi-split central air conditioner more and more complex. However, the linkage efficiency between multiple modules in the household multi-split central air conditioner is low. In order to meet their own requirements for comfort, users often need to manually and continuously and complexly operate each module in the household multi-split central air conditioner, which results in low operation efficiency of the central air conditioner multi-split system and causes energy loss. SUMMARY

[0003] Embodiments of the present application provide a central controller and an air conditioner control method, which solve the problems of low operation efficiency and high energy loss of a multi-split central air conditioner system.

[0004] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions.

[0005] In a first aspect, a central controller is provided, which is used to control a multi-split central air conditioner, the multi-split central air conditioner comprising one outdoor unit and multiple indoor units, wherein the central controller comprises: a portrait determining unit configured to determine a user portrait of a user using the multi-split central air conditioner, the user portrait being used to indicate an operation habit of the user when using the multi-split central air conditioner; and a gear determining unit configured to determine a capacity output gear of the outdoor unit according to the user portrait, an actual indoor environment parameter of an environment in which the multi-split central air conditioner is located, and a target indoor environment parameter, wherein different capacity output gears in the outdoor unit correspond to different output capacities.

[0006] Thus, in the present application, the central controller can determine the user portrait of the multi-split central air conditioner according to the operation habit of the user when using the multi-split central air conditioner, and determine the capacity output gear of the outdoor unit according to the user portrait, the actual indoor environment parameter of the environment in which the multi-split central air conditioner is located, and the target indoor environment parameter. Compared with the prior art, the user needs to manually and continuously and complexly operate each module in the household central air conditioner multi-split system to meet their own requirements for comfort. The present application can automatically adjust the capacity output gear of the outdoor unit according to the user portrait, the actual indoor environment parameter of the environment in which the multi-split central air conditioner is located, and the target indoor environment parameter, quickly meet the user's requirements for comfort, and improve the operation efficiency of the central air conditioner multi-split system.

[0007] In some embodiments, the user portrait is used to indicate that the user likes sudden cooling and sudden heating when using the multi-split central air conditioner. Alternatively, the user portrait is used to indicate that the user likes warmth when using the multi-split central air conditioner.

[0008] In some embodiments, the indoor actual environment parameter includes an indoor actual temperature and an indoor actual humidity of an environment where the indoor unit is located, and the indoor target environment parameter includes an indoor target temperature and an indoor target humidity set by the user. The gear determination unit is configured to determine a temperature difference between the indoor actual temperature and the indoor target temperature, and a humidity difference between the indoor actual humidity and the indoor target humidity. The output capacity gear of the outdoor unit is determined according to the temperature difference, the humidity difference, and the user portrait, and a correspondence between the output capacity gears of the outdoor unit.

[0009] In some embodiments, the central controller further includes a high sensible heat determination unit configured to control the outdoor unit to operate in a high sensible heat mode if the user portrait indicates that the user prefers to be warm when using the multi-split central air conditioner, the temperature difference is less than or equal to a first preset threshold, or the humidity difference is less than or equal to a second preset threshold. The outdoor unit is controlled to operate in the high sensible heat mode if the user portrait indicates that the user prefers to be suddenly cold or suddenly hot when using the multi-split central air conditioner, the temperature difference is less than or equal to a third preset threshold, or the humidity difference is less than or equal to a fourth preset threshold. The third preset threshold is greater than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold. The sensible heat ratio of the outdoor unit in the high sensible heat mode is higher than that in other operating modes.

[0010] In some embodiments, the central controller further includes a model establishment unit configured to determine a plurality of temperature differences between a plurality of indoor actual temperatures of the indoor unit and a preferred temperature of the user, and a plurality of humidity differences between a plurality of indoor actual humidities of the indoor unit and a preferred humidity of the user. A plurality of output capacity gears of the outdoor unit are determined according to the plurality of temperature differences, the plurality of humidity differences, and a maximum output capacity of the air conditioner outdoor unit. An initial control model is established, which includes a first correspondence between the plurality of temperature differences, the plurality of humidity differences, and the plurality of output capacity gears of the outdoor unit. A load prediction model is established, which includes a second correspondence between the plurality of temperature differences, the plurality of humidity differences, the plurality of user portraits, and the plurality of output capacity gears of the outdoor unit.

[0011] In a second aspect, a control method of an air conditioner is provided, which is applied to a central controller of a multi-split central air conditioner. The multi-split central air conditioner includes one outdoor unit and a plurality of indoor units. The method includes determining a user portrait of a user using the multi-split central air conditioner, the user portrait indicating an operation habit of the user when using the multi-split central air conditioner. An output capacity gear of the outdoor unit is determined according to the user portrait, an indoor actual environment parameter, and an indoor target environment parameter of an environment where the multi-split central air conditioner is located. Different output capacity gears of the outdoor unit correspond to different output capacities.

[0012] The beneficial effects of the second aspect can be referred to the first aspect, which will not be repeated here.

[0013] In some embodiments, the user profile is used to indicate that the user prefers sudden cooling and sudden heating when using the multi-split central air conditioner. Alternatively, the user profile is used to indicate that the user prefers mild temperature when using the multi-split central air conditioner.

[0014] In some embodiments, the actual indoor environment parameter includes an actual indoor temperature and an actual indoor humidity of an environment where the indoor unit is located, and the target indoor environment parameter includes a target indoor temperature and a target indoor humidity set by the user. The capability output gear of the outdoor unit is determined according to the user profile, the actual indoor environment parameter and the target indoor environment parameter of the environment where the multi-split central air conditioner is located, including: determining a temperature difference between the actual indoor temperature and the target indoor temperature, and a humidity difference between the actual indoor humidity and the target indoor humidity. The capability output gear of the outdoor unit is determined according to the temperature difference, the humidity difference and the user profile, and a corresponding relationship between the output capability gears of the outdoor unit.

[0015] In some embodiments, the method further includes: if the user profile is used to indicate that the user prefers mild temperature when using the multi-split central air conditioner, the temperature difference is less than or equal to a first preset threshold, or the humidity difference is less than or equal to a second preset threshold, then controlling the outdoor unit to operate in a high sensible heat mode. If the user profile is used to indicate that the user prefers sudden cooling and sudden heating when using the multi-split central air conditioner, the temperature difference is less than or equal to a third preset threshold, or the humidity difference is less than or equal to a fourth preset threshold, then controlling the outdoor unit to operate in the high sensible heat mode. The third preset threshold is greater than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold. The sensible heat ratio of the outdoor unit in the high sensible heat mode is higher than that in other operating modes.

[0016] In some embodiments, before determining the capability output gear of the outdoor unit, the method further includes: determining a plurality of temperature differences between a plurality of actual indoor temperatures of the indoor unit and a preferred temperature of the user, and a plurality of humidity differences between a plurality of actual indoor humidities of the indoor unit and a preferred humidity of the user. A plurality of capability output gears of the outdoor unit are determined according to the plurality of temperature differences, the plurality of humidity differences and the maximum output capability of the air conditioner outdoor unit. An initial control model is established, which includes a first corresponding relationship between the plurality of temperature differences, the plurality of humidity differences and the plurality of capability output gears of the outdoor unit. A load prediction model is established, which includes a second corresponding relationship between the plurality of temperature differences, the plurality of humidity differences, the plurality of user profiles and the plurality of capability output gears of the outdoor unit. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A schematic diagram of an air conditioning system provided by an embodiment of the present application;

[0018] Figure 2 A flowchart of an air conditioning system control method provided by an embodiment of the present application;

[0019] Figure 3A flowchart for dividing the output capacity level of the outdoor unit is provided for the embodiments of the present application.

[0020] Figure 4 A flowchart for determining the capacity output level of the outdoor unit is provided for the embodiments of the present application.

[0021] Figure 5 A flowchart for the outdoor unit operating in the high sensible heat mode is provided for the embodiments of the present application.

[0022] Figure 6 A flowchart for the process of determining the capacity output level of the outdoor unit for refrigeration is provided for the embodiments of the present application.

[0023] Figure 7 A flowchart for the process of determining the capacity output level of the outdoor unit for heating is provided for the embodiments of the present application.

[0024] Figure 8 A schematic diagram for establishing a model is provided for the embodiments of the present application.

[0025] Figure 9 A schematic diagram for the central controller quickly controlling the outdoor unit is provided for the embodiments of the present application.

[0026] Figure 10 A schematic diagram for the central controller is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0030] The control method of the air conditioning system provided by the present application can be applied to, for example, Figure 1The air conditioning system 100 shown. The air conditioning system 100 includes a central controller 101, a multi-connected central air conditioner 102, a fresh air handler 103, a smart big data cloud platform 104, a mobile application (APP) 105 and a web management 106. Among them, the multi-connected central air conditioner 102 includes an outdoor unit 1020 and a plurality of indoor units 1021.

[0031] The central controller 101 is used to control the multi-connected central air conditioner 102 and the fresh air handler 103. For example, the multi-connected central air conditioner 102 can be remotely controlled to start and adjust the temperature. The central controller 101 may, for example, be a smart central control screen. The central controller 101 also has a search function, which can report the searched data of the multi-connected central air conditioner 102 and the fresh air handler 103 to the smart big data cloud platform 104.

[0032] The multi-connected central air conditioner 102 refers to an outdoor unit 1020 connected to two or more indoor units 1021 through pipes, commonly known as "one-to-many". It is a primary refrigerant air conditioning system that uses air cooling on the outdoor side and direct evaporation on the indoor side. The multi-connected central air conditioner 102 can meet the indoor cooling and heating load requirements in a timely manner by controlling the refrigerant circulation of the compressor and the refrigerant flow into the indoor heat exchanger, achieving high efficiency of the refrigerant air conditioning system. The multi-connected central air conditioner 102 needs to use a variable frequency compressor, a multi-pole compressor, an unloading compressor or a combination of multiple compressors to realize compressor capacity control. Electronic expansion valves or other auxiliary circuits are required in the refrigeration system to regulate the refrigerant flow into the indoor unit 1021, and the fan speed product of the indoor and outdoor heat exchangers is controlled to adjust the heat exchanger capacity. The multi-connected central air conditioner 102 can be in heating or cooling mode to adjust the indoor environment temperature.

[0033] The fresh air handler 103 uses the direct expansion refrigeration method to process outdoor air close to room temperature through variable frequency control, strong and precise heating and cooling. For example, the outdoor fresh air can be purified and filtered and then sent indoors, while the indoor stale air is forced or induced outdoors. It can also humidify, heat and cool the incoming fresh air as needed. The fresh air handler 103 is connected to the outdoor unit 1020 and the indoor unit 1021 through communication lines.

[0034] The web terminal management 106 is configured to display the operation data of the air conditioning system 100 and to remotely upgrade the configuration of the strategy.

[0035] In actual use, as the air conditioning system 100 has more and more functions, the operation steps thereof are more and more complicated. Most users can not correctly use the functions of the air conditioning system 100 except for the basic on-off, mode selection and temperature adjustment. For example, some users can not correctly use the fresh air processor 103 to humidify the indoor air.

[0036] Therefore, the present application provides an air conditioning control method, which can automatically adjust the multi-split central air conditioner 102 according to the use habit of the user to meet the comfort requirement of the user.

[0037] As shown in FIG. 1, the air conditioning system 100 provided by the present application comprises a multi-split central air conditioner 102, a fresh air processor 103, a set controller 101, a web terminal management 106 and a user terminal 107. Figure 2 As shown in FIG. 2, the flowchart of the air conditioning system control method provided by the present application is shown.

[0038] 201, the set controller 101 determines the user portrait of the user using the multi-split central air conditioner 102, which is used to indicate the operation habit of the user using the multi-split central air conditioner 102.

[0039] The operation habit herein can be understood as that the set controller 101 periodically counts the operation record of the user in a day, and simultaneously collects the indoor environment parameters in real time. The content of the operation record of the user can be, for example, the time of the user turning on or off the multi-split central air conditioner 102, the time of the user controlling the multi-split central air conditioner 102 to adjust the temperature, humidity or mode, etc. The indoor environment parameters can be, for example, the temperature and humidity in the room where the indoor unit 1021 is located.

[0040] In some embodiments, the user portrait is used to indicate that the user likes to rapidly cool or heat the room when using the multi-split central air conditioner 102. Alternatively, the user portrait is used to indicate that the user likes to gently adjust the temperature of the room when using the multi-split central air conditioner 102.

[0041] The rapid cooling and heating herein can be understood as that the indoor temperature rapidly reaches the temperature set by the user. The gentle adjustment can be understood as that the indoor temperature slowly reaches the temperature set by the user.

[0042] For example, the air conditioning system 100 extracts the operation record of the user turning on or off the air conditioning system 100, the time of the user controlling the air conditioning system 100 to adjust the temperature, humidity or mode, etc. and the temperature and humidity in the room where the indoor unit 1021 is located collected in real time every 7 days to determine whether the user likes the indoor temperature to rapidly reach the temperature set by the user or the indoor temperature to slowly reach the temperature set by the user.

[0043] 202. The controller 101 determines the capacity output level of the outdoor unit 1020 according to the user portrait, the actual indoor environment parameter and the target indoor environment parameter of the environment in which the multi-split central air conditioner 102 is located. Different capacity output levels correspond to different output capacities in the outdoor unit 1020.

[0044] The output capacity of the outdoor unit 1020 herein can be understood as the refrigerating capacity of the outdoor unit 1020. The capacity output level of the outdoor unit 1020 can be understood as the division of the output capacity of the outdoor unit 1020 into different levels, for example, the output capacity of the outdoor unit 1020 can be divided into 7 levels.

[0045] In some embodiments, the method can further include that the controller 101 sends indication information to the outdoor unit 1020, the indication information being used to indicate the capacity output level of the outdoor unit 1020. In this case, the outdoor unit 1020 stores the correspondence between the plurality of capacity output levels and the plurality of output capacities. The outdoor unit 1020 can determine the current output capacity according to the correspondence and the indication information, for example, the output capacity is a percentage of the maximum output capacity.

[0046] Alternatively, the indication information is used to directly indicate the percentage of the maximum output capacity. The outdoor unit 1020 adjusts the current output capacity of the outdoor unit 1020 according to the determined percentage of the maximum output capacity.

[0047] If the output capacity of the outdoor unit 1020 changes, it will affect the heating or cooling capacity and the humidifying or dehumidifying capacity of the plurality of indoor units 1021. For example, if the output capacity of the outdoor unit is improved, the heating or cooling capacity and the humidifying or dehumidifying capacity of the indoor unit will also be improved. If the output capacity of the outdoor unit is reduced, the heating or cooling capacity of the indoor unit will be reduced and the humidifying or dehumidifying capacity will also be reduced.

[0048] Therefore, in this application, the controller 101 determines the user portrait of the multi-split central air conditioner 102 according to the operation habit of the user using the multi-split central air conditioner 102, and determines the capacity output level of the outdoor unit 1020 according to the user portrait, the actual indoor environment parameter and the target indoor environment parameter of the environment in which the multi-split central air conditioner 102 is located. Compared with the prior art, the user needs to manually and continuously and complexly operate each module in the household central air conditioner multi-split system to meet his own requirements for comfort. This application can automatically adjust the capacity output level of the outdoor unit 1020 according to the user portrait, the actual indoor environment parameter and the target indoor environment parameter of the environment in which the multi-split central air conditioner 102 is located, quickly meet the user's requirements for comfort, and improve the operation efficiency of the central air conditioner multi-split system.

[0049] In some embodiments, before step 201, the central controller 101 can first divide the output capacity of the outdoor unit 1020 into multiple levels. The implementation of how to divide the output capacity of the outdoor unit 1020 into different levels can include the flowchart as shown in FIG. 11. Figure 3

[0050] Figure 3 A flowchart for dividing the output capacity levels of the outdoor unit 1020 is provided in this application, which includes the following steps.

[0051] 301. The central controller 101 determines multiple temperature difference values between the multiple indoor actual temperatures of the indoor units 1021 and the user's favorite temperature, and multiple humidity difference values between the multiple indoor actual humidities of the indoor units 1021 and the user's favorite humidity.

[0052] The user's favorite temperature (unit: ℃) and favorite humidity (unit: %RH) here can be understood as the user's target favorite parameters. The central controller 101 can obtain the target favorite parameters in multiple ways. For example, the central controller 101 can confirm through the historical data of the user's cloud.

[0053] Each of the multiple indoor actual temperatures can be understood as the average value of the actual temperature in the room where the indoor unit 1021 is located, which is collected by the multiple indoor units 1021 and the fresh air handler 103 at a time or in a period. Each of the multiple indoor actual humidities can be understood as the average value of the actual humidity in the room where the indoor unit 1021 is located, which is collected by the multiple indoor units 1021 and the fresh air handler 103 at a time or in a period.

[0054] For example, after the indoor units 1021 and the fresh air handler 103 send the actual temperature in the room where the indoor unit 1021 is located, which is collected periodically by the indoor units 1021 and the fresh air handler 103, and the actual humidity in the room where the indoor units 1021 and the fresh air handler 103 are located, which is collected periodically by the indoor units 1021 and the fresh air handler 103, to the central controller 101, the central controller 101 takes the average value of the actual temperature in the room where the indoor unit 1021 is located, which is collected by each of the indoor units 1021 and the fresh air handler 103 in multiple periods, and makes a difference with the user's favorite temperature to obtain multiple temperature difference values in multiple periods. The central controller 101 takes the average value of the actual humidity in the room where the indoor units 1021 and the fresh air handler 103 are located, which is collected by the indoor units 1021 and the fresh air handler 103 in multiple periods, and makes a difference with the user's favorite humidity to obtain multiple humidity difference values in multiple periods.

[0055] It should be understood that the multiple temperature difference values can also be multiple temperature difference value ranges, and the multiple humidity difference values can also be multiple humidity difference value ranges.

[0056] ​302、The central controller 101 determines multiple capacity output levels of the outdoor unit 1020 according to the multiple temperature difference values, the multiple humidity difference values and the maximum output capacity of the outdoor unit 1020.

[0057] The maximum output capacity of the outdoor unit 1020 herein can be understood as the rated cooling capacity or the rated heating capacity of the outdoor unit 1020. The number of the multiple capacity output levels of the outdoor unit 1020 can be determined according to the multiple temperature difference values and the multiple humidity difference values obtained by the central controller 101.

[0058] For example, the multiple temperature difference values and the multiple humidity difference values determine the first N groups of values with the highest occurrence frequency according to probability statistics, and the number of the capacity output levels can be determined as N. For example, the first N groups of values with the highest occurrence frequency are 7 groups, and 7 capacity output levels can be determined accordingly. Each capacity output level corresponds to a group of values including one temperature difference value and one humidity difference value. Alternatively, the number of the multiple capacity output levels is preset, and the central controller 101 can take the first N groups of values with the highest occurrence frequency from the statistical values. For example, when N is 7, the outdoor unit 1020 can be divided into 7 levels according to 20%, 30%, 40%, 50%, 60%, 70% and 90% of the rated cooling capacity or the rated heating capacity of the outdoor unit 1020.

[0059] 303、The central controller 101 establishes an initial control model including a first correspondence relationship between the multiple temperature difference values, the multiple humidity difference values and the multiple capacity output levels of the outdoor unit.

[0060] For example, after the multiple capacity output levels are determined, the first correspondence relationship established by the central controller 101 can be shown in Table 1:

[0061] Table 1

[0062]

[0063]

[0064] In Table 1, △T represents a temperature difference value obtained by subtracting the user's favorite temperature from the actual temperature (average value of the actual temperature) of the room where the indoor unit 1021 is located, which is collected by the indoor unit 1021 in one period, and △S represents a humidity difference value obtained by subtracting the user's favorite humidity from the actual humidity (average value of the actual humidity) of the room where the indoor unit 1021 is located, which is collected by the indoor unit 1021 and the fresh air processor 103 in one period.

[0065] As shown in Table 1, when the temperature difference between the actual temperature in the room where the indoor unit 1021 is located and the user's preferred temperature is 1 and the humidity difference between the actual humidity in the room where the indoor unit 1021 is located and the user's preferred humidity is 5℃, the outdoor unit 1020 performs heating or cooling at 20% of the maximum output capacity of the outdoor unit 1020. Similarly, when the temperature difference is 2-6℃ and the humidity difference is 10-30% RH, the outdoor unit 1020 performs heating or cooling at different gears. However, when the temperature difference between the actual temperature in the room where the indoor unit 1021 is located and the user's preferred temperature is greater than or equal to 7℃ and the humidity difference between the actual humidity in the room where the indoor unit 1021 is located and the user's preferred humidity is greater than or equal to 35% RH, the outdoor unit 1020 performs heating or cooling at 90% of the maximum output capacity of the outdoor unit 1020. Thus, the output capacity of the outdoor unit 1020 is divided into 7 gears.

[0066] In some embodiments, the indoor actual environment parameters include the indoor actual temperature and the indoor actual humidity of the environment where the indoor unit 1021 is located, and the indoor target environment parameters include the indoor target temperature and the indoor target humidity set by the user. The indoor actual temperature can be understood as the actual temperature in the room where the indoor unit 1021 is located, and the indoor actual humidity can be understood as the actual humidity in the room where the indoor unit 1021 is located. The indoor target temperature set by the user can be understood as the temperature in the room where the indoor unit 1021 is located that meets the user's comfort requirements and is set by the user through the mobile phone APP 105 or the central controller 101. The indoor target humidity set by the user can be understood as the humidity in the room where the indoor unit 1021 is located that meets the user's comfort requirements and is set by the user through the mobile phone APP 105 or the central controller 101.

[0067] 304, the central controller 101 establishes a load prediction model, which includes a second correspondence relationship between a plurality of temperature differences, a plurality of humidity differences, a plurality of user portraits, and a plurality of capacity output gears of the outdoor unit 1020.

[0068] That is, on the basis of establishing the initial control model, the central controller 101 can further establish a load prediction model according to a plurality of user portraits and a plurality of capacity output gears of the outdoor unit 1020. The load prediction model is the model for the central controller 101 to determine the capacity output gear of the outdoor unit in the actual application process.

[0069] For example, the second correspondence relationship established by the central controller 101 can be as shown in Table 2:

[0070] Table 2

[0071]

[0072] △T1 represents a temperature difference value obtained by subtracting the actual temperature in the room where the indoor unit 1021 is located from the temperature in the room where the indoor unit 1021 is located set by the user through the mobile phone APP 105 or the central controller 101 to meet the user's comfort requirements. △S1 represents a humidity difference value obtained by subtracting the actual humidity in the room where the indoor unit 1021 is located from the humidity in the room where the indoor unit 1021 is located set by the user through the mobile phone APP 105 or the central controller 101 to meet the user's comfort requirements.

[0073] User portrait 1 indicates that the user likes to suddenly cool and suddenly heat when using the multi-split central air conditioner 102, and user portrait 0 indicates that the user likes to be warm when using the multi-split central air conditioner 102.

[0074] On the basis of establishing the load prediction model, the load prediction model is applied, and how to determine the capacity output gear of the outdoor unit 1020 according to the user portrait, the actual indoor environmental parameters and the indoor target environmental parameters of the environment where the multi-split central air conditioner 102 is located can be as shown in the following. Figure 4

[0075] Figure 4 A flowchart for determining the capacity output gear of the outdoor unit 1020 is provided for the present application, which includes the following steps.

[0076] 401. The central controller 101 determines the temperature difference value of the actual indoor temperature and the indoor target temperature, and the humidity difference value of the actual indoor humidity and the indoor target humidity.

[0077] For example, the central controller 101 obtains a temperature difference value by subtracting the actual temperature in the room where the indoor unit 1021 is located from the temperature in the room where the indoor unit 1021 is located set by the user through the mobile phone APP 105 or the central controller 101 to meet the user's comfort requirements. The central controller 101 obtains a humidity difference value by subtracting the actual humidity in the room where the indoor unit 1021 is located from the humidity in the room where the indoor unit 1021 is located set by the user through the mobile phone APP 105 or the central controller 101 to meet the user's comfort requirements.

[0078] 402. The central controller 101 determines the capacity output gear of the outdoor unit according to the temperature difference value, the humidity difference value and the user portrait, and the corresponding relationship of the output capacity gear of the outdoor unit 1020.

[0079] In some embodiments, by applying the above load prediction model, step 402 is equivalent to that the central controller 101 determines the capacity output gear of the outdoor unit 1020 according to the above-mentioned second corresponding relationship, and the current temperature difference value, the current humidity difference value and the user portrait calculated by the central controller 101.

[0080] ​Exemplarily, as shown in Table 2, when △T1 is 1℃, △S1 is 5%RH, and the user portrait is 1, the following is exemplified. When △T1 is 1, △S1 is 5, and the user portrait is 1, the central controller 101 controls the outdoor unit 1020 to heat or cool at 30% of the maximum output capacity of the outdoor unit 1020.

[0081] While performing steps 401-402 as shown in the following table, in order to reduce the energy consumption of the air conditioning system 100, the central controller 101 controls the outdoor unit 1020 to run in high sensible heat mode in some cases. Figure 4

[0082] Here, high sensible heat can be understood as a higher ratio of sensible heat to total heat, for example, it can be 0.9. In high sensible heat mode, the multi-split central air conditioner 102 can save energy consumption.

[0083] As shown in the following table, the outdoor unit 1020 provided in the present application runs in high sensible heat mode, wherein steps 501 and 502 are or, and one of them can be executed. Figure 5

[0084] 501, if the user portrait is used to indicate that the user prefers warm when using the multi-split central air conditioner 102, the temperature difference is less than or equal to the first preset threshold, or the humidity difference is less than or equal to the second preset threshold, the central controller 101 controls the outdoor unit 1020 to run in high sensible heat mode.

[0085] Here, the first preset threshold can be 3℃, and the second preset value can be 15%RH.

[0086] Exemplarily, when the user prefers the indoor temperature to reach the user's set temperature quickly, i.e. the user portrait is 1, if △T1≤3℃ or △S1≤15%RH, the central controller 101 controls the outdoor unit 1020 to run in high sensible heat mode. The sensible heat ratio of the outdoor unit 1020 in high sensible heat mode is higher than that in other modes, and the outdoor unit 1020 runs in high sensible heat mode with lower energy consumption.

[0087] 502, if the user portrait is used to indicate that the user prefers sudden cooling and sudden heating when using the multi-split central air conditioner, the temperature difference is less than or equal to the third preset threshold, or the humidity difference is less than or equal to the fourth preset threshold, the central controller 101 controls the outdoor unit to run in high sensible heat mode.

[0088] Here, the third threshold can be 2℃, and the fourth threshold can be 10%RH.

[0089] Exemplarily, when the user prefers the indoor temperature to reach the user's set temperature slowly, i.e. the user portrait is 0, if △T1≤2℃ or △S1≤10%RH, the central controller 101 controls the outdoor unit 1020 to run in high sensible heat mode.​​

[0090] It can be understood that the third preset threshold is greater than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold.

[0091] Therefore, the second correspondence relationship in the above load prediction model can also be as shown in Table 3, which is based on Table 2 and Table 3 adds a table entry of the high sensible heat mode.

[0092] Table 3

[0093]

[0094] Where YES indicates that the outdoor unit 1020 operates in the high sensible heat mode, and NO indicates that the outdoor unit 1020 does not operate in the high sensible heat mode.

[0095] As can be seen from Table 3, when the user prefers the indoor temperature to quickly reach the user's set temperature, i.e., the user portrait is 1, if ΔT1>3℃ or ΔS1>15%RH, the outdoor unit 1020 does not operate in the high sensible heat mode. When the user prefers the indoor temperature to slowly reach the user's set temperature, i.e., the user portrait is 0, if ΔT1>2℃ or ΔS1>10%RH, the outdoor unit 1020 does not operate in the high sensible heat mode.

[0096] In some implementations, when the air conditioning system 100 is in a cooling state, the central controller 101 determines the capacity output level of the outdoor unit according to the temperature difference, the humidity difference, and the user portrait, and the correspondence relationship between the output capacity level of the outdoor unit, i.e., the above-mentioned second correspondence relationship, to determine the process of cooling the capacity output level of the outdoor unit. The schematic diagram can be a curve as shown in Figure 6 .

[0097] Figure 6 The vertical axis represents the change trend of the indoor actual temperature, the indoor actual humidity, the indoor target temperature, the indoor target humidity, the output capacity of the outdoor unit 1020, the indoor process target temperature, and the indoor process target humidity, and the horizontal axis represents the time of cooling.

[0098] Wherein, the indoor process target temperature is lower than the indoor target temperature, and the indoor process target humidity is lower than the indoor target humidity.

[0099] As can be seen from the above-mentioned process of cooling the capacity output level of the outdoor unit, the indoor process target temperature is lower than the indoor target temperature, and the indoor process target humidity is lower than the indoor target humidity. Figure 6It can be seen that the indoor target temperature and indoor target humidity are constant. The indoor process target temperature gradually increases to the indoor target temperature, while the indoor actual temperature gradually decreases to the indoor target temperature. The indoor process target humidity gradually increases to the indoor target humidity, while the indoor actual humidity gradually decreases to the indoor target humidity. Since the indoor process target temperature and indoor actual temperature are constantly changing, ΔT1 is constantly changing and gradually decreases. The indoor process target humidity and indoor actual humidity are also constantly changing, so ΔS1 is constantly changing and gradually decreases. As shown in Table 2, when ΔT1 and ΔS1 decrease, the output capacity of outdoor unit 1020 gradually decreases, that is, the output speed of outdoor unit 1020 decreases. Initially, because the values ​​of ΔT1 and ΔS1 are relatively large, the central controller 101 controls outdoor unit 1020 to output at a higher speed, so... Figure 6 It can be seen that the output capacity of the outdoor unit 1020 first increased significantly and then gradually decreased.

[0100] When the air conditioning system 100 is in heating mode, the central controller 101 determines the outdoor unit's output capacity level for heating based on the correspondence between the temperature difference, humidity difference, user profile, and the outdoor unit's output capacity level (i.e., the aforementioned second correspondence). A schematic diagram of this process is shown below. Figure 7 The curve shown.

[0101] Figure 7 The vertical axis represents the changing trends of actual indoor temperature, actual indoor humidity, target indoor temperature, target indoor humidity, outdoor unit 1020 output capacity, target indoor temperature, and target indoor humidity. The horizontal axis represents the heating time.

[0102] Among them, the indoor process target temperature is higher than the indoor target temperature, and the indoor process target humidity is higher than the indoor target humidity.

[0103] Depend on Figure 7 It can be seen that the indoor target temperature and indoor target humidity are constant. The indoor process target temperature gradually decreases to the indoor target temperature, while the indoor actual temperature gradually increases to the indoor target temperature. The indoor process target humidity gradually decreases to the indoor target humidity, while the indoor actual humidity gradually increases to the indoor target humidity. Since the indoor process target temperature and indoor actual temperature are constantly changing, ΔT1 is constantly changing and gradually decreases. The indoor process target humidity and indoor actual humidity are also constantly changing, so ΔS1 is constantly changing and gradually decreases. As shown in Table 2, when ΔT1 and ΔS1 decrease, the output capacity of outdoor unit 1020 gradually decreases, that is, the output speed of outdoor unit 1020 decreases. Initially, because the values ​​of ΔT1 and ΔS1 are relatively large, the central controller 101 controls outdoor unit 1020 to output at a higher speed, so... Figure 7It can be seen that the output capacity of the outdoor unit 1020 is first significantly increased and then gradually decreased.

[0104] In some embodiments, based on Figure 4 steps 401-402, the process of determining the initial control model and the load prediction model before determining the capacity output gear of the outdoor unit 1020 is further introduced as follows.

[0105] As Figure 8 shown is a model building diagram provided by the present application. Referring to Figure 8 , the central controller 101 establishes the initial control model 801, which can be based on the environmental parameters 803 and the capacity detection 804 of the multi-split central air conditioner 102. Based on the establishment of the initial control model 801, the load prediction model 802 can also be based on the user preference 805 and the indoor air detection 806.

[0106] Among them, the environmental parameters 803 include the multiple indoor actual temperatures detected by the indoor unit 1021, the multiple indoor actual humidities of the indoor unit 1021, the user's preferred temperature, and the user's preferred humidity.

[0107] The capacity detection 804 includes the refrigeration power detection of the outdoor unit 1020 and the heating power detection of the outdoor unit 1020.

[0108] When the indoor unit 1021 sends the multiple indoor actual temperatures detected by the indoor unit 1021 and the multiple indoor actual humidities of the indoor unit 1021 to the central controller 101, the central controller 101 can establish the initial control model 801, including multiple temperature difference values, multiple humidity difference values, and a first correspondence relationship between multiple capacity output gears of the outdoor unit 1020.

[0109] Exemplarily, the environmental parameters 803 and the capacity detection 804 are model trained to obtain the initial control model 801.

[0110] The user preference 805 can be understood as the user's preference for sudden cooling and sudden heating or preference for warm when using the multi-split central air conditioner 102 as described above.

[0111] The indoor air detection 806 can be understood as the indoor actual environmental parameters described above.

[0112] When the indoor unit 1021 sends the indoor actual temperature and the indoor actual humidity of the environment where the indoor unit 1021 is located to the central controller 101, the central controller 101 can establish the load prediction model 802, including multiple temperature difference values, multiple humidity difference values, multiple user portraits, and a second correspondence relationship between multiple capacity output gears of the outdoor unit.

[0113] An example is that the first corresponding relationship between the user preference 805, the load prediction model 802 and the initial control model 801 is trained to obtain the load prediction model 802.

[0114] Figure 9 A schematic diagram of a central controller 101 rapidly controlling an outdoor unit 1020 is provided in the present application. It includes a target parameter 901, an initial control model 801, a load prediction model 802, an adjusted control target 902 and a maintained outdoor unit 1020 output capacity 903.

[0115] The target parameter 901 can be understood as the target preference parameter described above.

[0116] The adjusted control target 902 can be understood as the indoor process target temperature and the indoor process target humidity in the above formula (1) and formula (2). Figure 6 Or Figure 7 The indoor process target temperature and the indoor process target humidity in the above formula (1) and formula (2).

[0117] The maintained outdoor unit 1020 output capacity 903 can be understood as keeping the output capacity of the outdoor unit 1020 unchanged when the indoor process target temperature is equal to the indoor target temperature and the indoor process target humidity is equal to the indoor target humidity. Figure 6 Or Figure 7 It can be known that the output capacity of the outdoor unit 1020 gradually tends to be stable.

[0118] An example is that after the initial control model 801 and the load prediction model 802 are established, the central controller 101 can apply the initial control model 801 and the load prediction model 802 to reach the target temperature and humidity set by the user in the most energy-saving, fastest and most comfortable way.

[0119] In some embodiments, there can also be multiple load prediction models 802 in the central controller 101. Since one outdoor unit 1020 is connected with multiple indoor units 1021, each indoor unit 1021 can be installed in a different room, that is, the actual environmental parameters and the indoor target environment in the room where each indoor unit 1021 is located can be different. Each load prediction model 802 in the central controller 101 can be applied to the room where one indoor unit 1021 is located.

[0120] Based on the above introduction of the air conditioning system control method, the present application also provides a central controller 200.

[0121] As Figure 10Fig. 1 shows a schematic diagram of a controller 200 according to an embodiment of the present application, which includes a user portrait determining unit 1001, a gear determining unit 1002, a high sensible heat determining unit 1003, and a model establishing unit 1004.

[0122] The user portrait determining unit 1001 is configured to determine a user portrait of a user using a multi-split central air conditioner, where the user portrait is used to indicate an operation habit of the user using the multi-split central air conditioner.

[0123] The gear determining unit 1002 is configured to determine an output capacity gear of an outdoor unit 1020 according to the user portrait, an actual indoor environment parameter and a target indoor environment parameter of an environment where the multi-split central air conditioner is located, where different output capacity gears correspond to different output capacities in the outdoor unit 1020.

[0124] In some embodiments, the user portrait is used to indicate that the user likes sudden cooling and sudden heating when using the multi-split central air conditioner. Alternatively, the user portrait is used to indicate that the user likes mildness when using the multi-split central air conditioner.

[0125] In some embodiments, the actual indoor environment parameter includes an actual indoor temperature and an actual indoor humidity of an environment where an indoor unit is located, and the target indoor environment parameter includes a target indoor temperature and a target indoor humidity set by the user.

[0126] The gear determining unit 1002 is configured to determine a temperature difference between the actual indoor temperature and the target indoor temperature, and a humidity difference between the actual indoor humidity and the target indoor humidity. The output capacity gear of the outdoor unit 1020 is determined according to a correspondence between the temperature difference, the humidity difference, and the output capacity gears of the outdoor unit 1020.

[0127] The high sensible heat determining unit 1003 is configured to control the outdoor unit 1020 to operate in a high sensible heat mode if the user portrait is used to indicate that the user likes mildness when using the multi-split central air conditioner, the temperature difference is less than or equal to a first preset threshold, or the humidity difference is less than or equal to a second preset threshold. The outdoor unit 1020 is controlled to operate in the high sensible heat mode if the user portrait is used to indicate that the user likes sudden cooling and sudden heating when using the multi-split central air conditioner, the temperature difference is less than or equal to a third preset threshold, or the humidity difference is less than or equal to a fourth preset threshold. The third preset threshold is greater than the first preset threshold, and the fourth preset threshold is greater than the second preset threshold. The sensible heat ratio of the outdoor unit 1020 in the high sensible heat mode is higher than that in other operating modes.

[0128] The model establishing unit 1004 is configured to determine a plurality of temperature difference values of the plurality of indoor actual temperatures of the indoor unit and the plurality of favorite temperatures of the user, and a plurality of humidity difference values of the plurality of indoor actual humidities of the indoor unit and the plurality of favorite humidities of the user. A plurality of capacity output gears of the outdoor unit 1020 are determined according to the plurality of temperature difference values, the plurality of humidity difference values, and the maximum output capacity of the outdoor unit 1020. An initial control model is established, the initial control model including a first correspondence relationship between the plurality of temperature difference values, the plurality of humidity difference values, and the plurality of capacity output gears of the outdoor unit 1020. A load prediction model is established, the load prediction model including a second correspondence relationship between the plurality of temperature difference values, the plurality of humidity difference values, the plurality of user portraits, and the plurality of capacity output gears of the outdoor unit 1020.

[0129] Therefore, in the present application, the central controller 101 determines the user portrait of the multi-split central air conditioner 102 according to the operation habit of the user using the multi-split central air conditioner 102, and determines the capacity output gear of the outdoor unit 1020 according to the user portrait, the indoor actual environmental parameter, and the indoor target environmental parameter of the environment where the multi-split central air conditioner 102 is located. Compared with the prior art, the user needs to manually and continuously and complicatedly operate each module in the household central air conditioner multi-split system to meet his or her requirement for comfort. The present application can automatically adjust the capacity output gear of the outdoor unit 1020 according to the user portrait, the indoor actual environmental parameter, and the indoor target environmental parameter of the environment where the multi-split central air conditioner 102 is located, quickly meet the requirement of the user for comfort, and improve the operation efficiency of the central air conditioner multi-split system.

[0130] Although the present application is described herein in conjunction with various embodiments, other variations of the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from an inspection of the drawings, the disclosure, and the appended claims. The word “comprising” does not exclude other components or steps not listed in the claims. The word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. A single processor or other unit can fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to an advantage.

[0131] Although the present application has been described in connection with certain specific features and embodiments thereof, it is to be understood that it is intended to cover all modifications and variations of this application which are within the scope of the appended claims and their equivalents. Accordingly, the description and drawings are to be regarded as illustrative in nature and not as restrictive.

[0132] The above descriptions are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A cluster controller, characterized in that, The central controller is used for controlling a multi-connected central air conditioner, the multi-connected central air conditioner comprises one outdoor unit and multiple indoor units, and the central controller comprises: an image determining unit configured to determine a user image of a user using the multi-connected central air conditioner, the user image being used for indicating an operation habit of the user when using the multi-connected central air conditioner; a gear determining unit configured to determine a capacity output gear of the outdoor unit according to the user image, an indoor actual environment parameter and an indoor target environment parameter of an environment in which the multi-connected central air conditioner is located, wherein different capacity output gears correspond to different output capacities in the outdoor unit; the user image is used for indicating that the user likes sudden cooling and sudden heating when using the multi-connected central air conditioner; or, the user image is used for indicating that the user likes gentleness when using the multi-connected central air conditioner; different user images correspond to different output capacities of the outdoor unit at the same capacity output gear of the outdoor unit.

2. The control center of claim 1, wherein, the indoor actual environment parameter comprises an indoor actual temperature and an indoor actual humidity of an environment in which an indoor unit is located, and the indoor target environment parameter comprises an indoor target temperature and an indoor target humidity set by the user; the gear determining unit is configured to: determine a temperature difference between the indoor actual temperature and the indoor target temperature and a humidity difference between the indoor actual humidity and the indoor target humidity; determine the capacity output gear of the outdoor unit according to a correspondence between the temperature difference, the humidity difference and the user image and the output capacity gears of the outdoor unit.

3. The cluster controller of claim 2, wherein, The central controller further comprises a high sensible heat determining unit configured to control the outdoor unit to operate in a high sensible heat mode if the user image is used for indicating that the user likes gentleness when using the multi-connected central air conditioner, the temperature difference is less than or equal to a first preset threshold, or the humidity difference is less than or equal to a second preset threshold; if the user image is used for indicating that the user likes sudden cooling and sudden heating when using the multi-connected central air conditioner, the temperature difference is less than or equal to a third preset threshold, or the humidity difference is less than or equal to a fourth preset threshold, the outdoor unit is controlled to operate in the high sensible heat mode; wherein the third preset threshold is greater than the first preset threshold, the fourth preset threshold is greater than the second preset threshold, and a sensible heat ratio of the outdoor unit in the high sensible heat mode is higher than that in other operation modes.

4. The central controller according to claim 2 or 3, wherein the central controller further comprises a model establishing unit configured to determine multiple temperature differences between multiple indoor actual temperatures of the indoor unit and a favorite temperature of the user, and multiple humidity differences between multiple indoor actual humidities of the indoor unit and a favorite humidity of the user; determine multiple capacity output gears of the outdoor unit according to the multiple temperature differences, the multiple humidity differences and a maximum output capacity of the outdoor unit; establish an initial control model, the initial control model comprising a first correspondence between the multiple temperature differences, the multiple humidity differences and the multiple capacity output gears of the outdoor unit. A load prediction model is established, which includes the second correspondence relationship between the plurality of temperature difference values, the plurality of humidity difference values, a plurality of user portraits and a plurality of capacity output gears of the outdoor unit.

5. An air conditioning control method characterized by, The method is applied to a central controller of a multi-split central air conditioner, the multi-split central air conditioner comprising one outdoor unit and a plurality of indoor units, and the method comprises: determining a user portrait of a user using the multi-split central air conditioner, the user portrait being used to indicate the operation habit of the user using the multi-split central air conditioner; determining a capacity output gear of the outdoor unit according to the user portrait, an indoor actual environment parameter and an indoor target environment parameter of an environment in which the multi-split central air conditioner is located, wherein different capacity output gears of the outdoor unit correspond to different output capacities of the outdoor unit; the user portrait is used to indicate that the user likes sudden cooling and sudden heating when using the multi-split central air conditioner; or, the user portrait is used to indicate that the user likes moderate temperature when using the multi-split central air conditioner; different user portraits correspond to different output capacities of the outdoor unit at the same capacity output gear of the outdoor unit.

6. The method of claim 5, wherein, the indoor actual environment parameter comprises an indoor actual temperature and an indoor actual humidity of an environment in which the indoor unit is located, and the indoor target environment parameter comprises an indoor target temperature and an indoor target humidity set by the user; the determining of the capacity output gear of the outdoor unit according to the user portrait, the indoor actual environment parameter and the indoor target environment parameter of the environment in which the multi-split central air conditioner is located comprises: determining a temperature difference value of the indoor actual temperature and the indoor target temperature, and a humidity difference value of the indoor actual humidity and the indoor target humidity; determining the capacity output gear of the outdoor unit according to the correspondence relationship between the temperature difference value, the humidity difference value and the user portrait and the output capacity gear of the outdoor unit.

7. The method of claim 6, wherein, The method further comprises: if the user portrait is used to indicate that the user likes moderate temperature when using the multi-split central air conditioner, the temperature difference value is less than or equal to a first preset threshold value, or the humidity difference value is less than or equal to a second preset threshold value, then the outdoor unit is controlled to operate in a high sensible heat mode; if the user portrait is used to indicate that the user likes sudden cooling and sudden heating when using the multi-split central air conditioner, the temperature difference value is less than or equal to a third preset threshold value, or the humidity difference value is less than or equal to a fourth preset threshold value, then the outdoor unit is controlled to operate in the high sensible heat mode; wherein the third preset threshold value is greater than the first preset threshold value, the fourth preset threshold value is greater than the second preset threshold value, and the sensible heat ratio of the outdoor unit in the high sensible heat mode is higher than that in other operating modes.

8. The method according to claim 6 or 7, characterized in that, Before determining the capacity output gear of the outdoor unit, the method further comprises: determining a plurality of temperature difference values of a plurality of indoor actual temperatures of the indoor unit and a favorite temperature of the user, and a plurality of humidity difference values of a plurality of indoor actual humidities of the indoor unit and a favorite humidity of the user; determining a plurality of capacity output gears of the outdoor unit according to the plurality of temperature difference values, the plurality of humidity difference values and the maximum output capacity of the outdoor unit; establishing an initial control model, the initial control model comprising a first correspondence between the plurality of temperature difference values, the plurality of humidity difference values, and a plurality of capacity output levels of the outdoor unit; establishing a load prediction model, the load prediction model comprising a second correspondence between the plurality of temperature difference values, the plurality of humidity difference values, a plurality of user profiles, and a plurality of capacity output levels of the outdoor unit.

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