WO2023115951A1

WO2023115951A1 - Air conditioner control method and apparatus, and multi-split air conditioner

Info

Publication number: WO2023115951A1
Application number: PCT/CN2022/108885
Authority: WO
Inventors: 王文博; 郝本华
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-12-20
Filing date: 2022-07-29
Publication date: 2023-06-29
Also published as: CN114322238A; CN114322238B

Abstract

An air conditioner control method and apparatus, and a multi-split air conditioner. The air conditioner control method comprises: obtaining a first temperature difference between a first indoor temperature of a first room and a set temperature and a second temperature difference between the set temperature and a second indoor temperature of a second room at a current moment; determining a current temperature adjustment stage from three temperature adjustment stages according to the first temperature difference and the second temperature difference; according to correspondences between the temperature adjustment stages and room temperature change rates, determining a current cooling rate of the first room and a current heating rate of the second room corresponding to the current temperature adjustment stage; and controlling a first air conditioner in the first room according to the current cooling rate, and controlling a second air conditioner in the second room according to the current heating rate. The use of the air conditioner control method can reduce the total energy consumption of the first air conditioner and the second air conditioner.

Description

Method, device and multi-connected air conditioner for controlling air conditioner

This application is based on a Chinese patent application with application number 202111564865.7 and a filing date of December 20, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of intelligent air conditioners, for example, to a method and device for controlling an air conditioner, and a multi-connected air conditioner.

Background technique

At present, air conditioners can be installed in different rooms in a family. These air conditioners can be multi-connected air conditioners or split-type air conditioners. Each air conditioner can adjust the temperature of the room where it is located. In the process of adjusting the temperature in the home, a set temperature can be set, and the room whose indoor temperature is higher than the set temperature is determined as a cooling room. If the air conditioner in the cooling room is in the heating mode, the air conditioner in the cooling room will The operating mode of the system is switched to cooling mode, so that the temperature of multiple rooms in the home can be adjusted to the target temperature.

For the air conditioner in each room, the controller with the function of eliminating deviation is used for control, that is, firstly determine the temperature difference between the indoor temperature and the set temperature, and then determine the cooling power or heating power of the air conditioner according to the temperature difference, and , the greater the temperature difference, the greater the cooling power or heating power.

In the process of implementing the embodiment of the present application, it is found that there are at least the following problems in the related art:

For the first room and the second room where there is heat exchange, the first room is in a cooling state, and the second room is in a heating state. If the temperature difference is greater, the cooling power of the first air conditioner in the first room is increased, and the second The greater the heating power of the second air conditioner in the second room, the less heat flow in the two rooms is likely to result, which increases the energy consumption of the air conditioner.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present application provide a method and device for controlling an air conditioner, and an intelligent air conditioner to reduce energy consumption during the process of cooling down a first room and heating up a second room that has heat exchange with the first room.

In some embodiments, the method for controlling the air conditioner includes: for the first room and the second room where heat exchange exists, in the case of cooling down the first room and heating up the second room, obtaining the first room at the current moment The first temperature difference between the first indoor temperature and the set temperature, and the second temperature difference between the set temperature and the second indoor temperature of the second room; according to the first temperature difference and the second temperature The difference value is to determine the current temperature regulation stage in the three temperature regulation stages; wherein, the three temperature regulation stages are the first temperature regulation stage, the second temperature regulation stage and the second temperature regulation stage in order of temperature difference from large to small. Three temperature adjustment stages: according to the corresponding relationship between the temperature adjustment stage and the room temperature change rate, determine the current temperature drop rate of the first room corresponding to the current temperature regulation stage and the current temperature increase rate of the second room; wherein, the The room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the first temperature adjustment stage, and the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the third temperature adjustment stage ; controlling the first air conditioner in the first room according to the current cooling rate, and controlling the second air conditioner in the second room according to the current heating rate.

Optionally, determining the current temperature adjustment stage in three temperature adjustment stages according to the first temperature difference and the second temperature difference includes: when the first temperature difference is greater than a first temperature threshold, And when the second temperature difference is greater than the third temperature threshold, the first temperature adjustment stage is determined as the current temperature adjustment stage; when the first temperature difference is less than or equal to the first temperature threshold, greater than the second temperature threshold, and the second temperature difference is less than or equal to the third temperature threshold, and greater than the fourth temperature threshold, the second temperature adjustment stage is determined as the current temperature adjustment stage; If the first temperature difference is less than or equal to the second temperature threshold, and the second temperature difference is less than or equal to the fourth temperature threshold, the third temperature adjustment stage is determined as the current temperature adjustment stage.

Optionally, the determination of the three temperature adjustment stages includes: when the method is executed for the first time, obtaining the third temperature difference between the third indoor temperature of the first room and the set temperature and the difference between the set temperature and the second room The fourth temperature difference of the fourth indoor temperature; obtain the first product of the third temperature difference and the set ratio, and the second product of the fourth temperature difference and the set ratio; according to the first Determine the first temperature threshold and the third temperature threshold based on the size relationship between the first product and the second product; divide the cooling process of the first room into three temperature adjustments according to the first temperature threshold and the second temperature threshold stage; according to the third temperature threshold and the fourth temperature threshold, the heating process of the second room is divided into three temperature adjustment stages; wherein, the second temperature threshold and the fourth temperature threshold are known values .

Optionally, determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product includes: when the first product is smaller than the second product, setting The first product is determined as the first temperature threshold; a first threshold difference between the first temperature threshold and the second temperature threshold is obtained; a second threshold corresponding to the first threshold difference is obtained Threshold difference: determining the sum of the fourth temperature threshold and the second threshold difference as the third temperature threshold.

Optionally, determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product includes: when the first product is greater than or equal to the second product , determining the second product as the third temperature threshold; obtaining a second threshold difference between the third temperature threshold and the fourth temperature threshold; obtaining the first threshold difference corresponding to the second threshold difference Threshold difference: determining the sum of the difference between the second temperature threshold and the first threshold as the first temperature threshold.

Optionally, the corresponding relationship between the first threshold difference and the second threshold difference includes: controlling the first air conditioner to run for a first set time according to a set cooling power, and converting the The falling temperature is determined as the first threshold difference; the second air conditioner is controlled to run for a first set time according to the set heating power, and the rising temperature of the second room is determined as the second temperature threshold.

Optionally, the determination of the corresponding relationship between the temperature adjustment stage and the room temperature change rate includes: obtaining the temperature drop value from the third temperature difference to the first temperature threshold; according to the temperature drop value and the second setting The quotient of the time length determines the first cooling rate of the first room corresponding to the first temperature adjustment stage; obtains the temperature increase value from the fourth temperature difference to the third temperature threshold; according to the The quotient of the temperature increase value and the second set duration determines the first temperature increase rate of the second room corresponding to the first temperature adjustment stage.

In some embodiments, the apparatus for controlling an air conditioner includes an obtaining module, a first determining module, a second determining module, and a control module; the obtaining module is configured to, for the first room and the second room where heat exchange exists, In the case of lowering the temperature of the first room and raising the temperature of the second room, the first temperature difference between the first indoor temperature of the first room and the set temperature at the current moment, and the difference between the set temperature and the second indoor temperature of the second room are obtained. The second temperature difference value of temperature; the first determination module is configured to determine the current temperature regulation stage in three temperature regulation stages according to the first temperature difference value and the second temperature difference value; wherein, the The above three temperature regulation stages are the first temperature regulation stage, the second temperature regulation stage and the third temperature regulation stage according to the order of the temperature difference from large to small; the second determination module is configured to The corresponding relationship of room temperature change rate is to determine the current cooling rate of the first room corresponding to the current temperature adjustment stage and the current temperature increase rate of the second room; wherein, the room temperature change corresponding to the second temperature adjustment stage The rate is greater than the room temperature change rate corresponding to the first temperature adjustment stage, and the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the third temperature adjustment stage; the control module is configured to The first air conditioner in the first room is controlled according to the current cooling rate, and the second air conditioner in the second room is controlled according to the current heating rate.

In some embodiments, the device for controlling an air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the method for controlling an air conditioner provided in the foregoing embodiments when executing the program instructions. .

In some embodiments, the multi-connected air conditioner includes the device for controlling the air conditioner provided in the foregoing embodiments.

The method, device, and multi-connected air conditioner provided in the embodiments of the present application can achieve the following technical effects:

The cooling process of the first room by the first air conditioner and the heating process of the second room by the second air conditioner are divided into three temperature adjustment stages, and the temperature difference corresponding to the first temperature adjustment stage (the first temperature difference and the second temperature difference The second temperature difference) is the largest, and the temperature difference corresponding to the third temperature adjustment stage is the smallest. For the first room, the three temperature adjustment stages are three cooling stages, and for the second room, the three temperature adjustment stages are three Cooling stage; the room temperature change rate in the first temperature regulation stage is less than the room temperature change rate corresponding to the second temperature regulation stage, that is, the temperature drop rate of the first room in the first temperature regulation stage is lower than the temperature drop rate of the first room in the second temperature regulation stage , the temperature rise rate of the second room in the first temperature adjustment stage is smaller than the temperature rise rate of the second room in the second temperature adjustment stage, so that a relatively high temperature difference can be maintained between the first room and the second room in the first stage, and It is conducive to the free flow of heat from the first room to the second room. Such heat flow is conducive to reducing the temperature of the first room and increasing the temperature of the second room at the same time, reducing the total energy consumption of the first air conditioner and the second air conditioner; the third adjustment The room temperature change rate in the warming stage is smaller than that in the second temperature adjustment stage, which is beneficial to the first room and the second room to reach the set temperature more stably; in the process of cooling the first room and heating the second room at the same time , the heat flow of the two rooms is effectively utilized, and the total energy consumption of the first air conditioner and the second air conditioner is reduced.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by corresponding drawings, and these exemplifications and drawings do not constitute limitations to the embodiments, and elements with the same reference numerals in the drawings are regarded as similar elements, and where:

FIG. 1 is a schematic diagram of an implementation scenario of a method for controlling an air conditioner provided in an embodiment of the present application;

Fig. 2 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present application;

Fig. 3 is a schematic diagram of changes in a first indoor temperature and a second indoor temperature and the temperature difference between them provided by an embodiment of the present application;

Fig. 4 is a schematic diagram of a process for determining three temperature adjustment stages provided by the embodiment of the present application;

Fig. 5 is a schematic diagram of a device for controlling an air conditioner provided in an embodiment of the present application;

Fig. 6 is a schematic diagram of an apparatus for controlling an air conditioner provided by an embodiment of the present application.

Detailed ways

In order to understand the characteristics and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present application. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first" and "second" in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so that the embodiments of the present application described herein are embodiments of the embodiments. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiment of the present application, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

Fig. 1 is a schematic diagram of an implementation scenario of a method for controlling an air conditioner provided by an embodiment of the present application. This implementation scenario includes a first room R1 and a second room R2. A first air conditioner K1 is installed in the first room R1. The first air conditioner K1 can adjust the first indoor temperature T1 in the first room R1. There is a second air conditioner K2, the second air conditioner K2 can adjust the second indoor temperature T2 in the second room R2, the first room R1 and the second room R2 can conduct heat exchange through the channel P, which can be an open door, Or open windows, or open doors and windows. When the first indoor temperature T1 is higher than the second indoor temperature T2, the heat flows from the first room R1 to the second room R2 through the passage P, so that the first indoor temperature T1 has a downward trend, and the second indoor temperature T2 has a rising trend. High trend: when the first indoor temperature T1 is lower than the second indoor temperature T2, heat flows from the second room R2 to the first room R1 through the channel P, so that the first indoor temperature T1 has a downward trend, and the second indoor temperature T2 has a rising trend.

Whether the channel P is opened can be detected by the door and/or window opening state detection device. Whether there is heat exchange between the first room R1 and the second room R2.

The method for controlling the air conditioner provided in the embodiment of the present application is suitable for a scene where the temperature difference between the first indoor temperature T1 of the first room R1 and the second indoor temperature T2 of the second room R2 is large. For example, before the first room R1 and the second room R2 are switched from the state of no heat exchange to the state of heat exchange, the first room R1 (such as the room where infants are) and the second room R2 (such as the room where young people are) The required set temperatures are all different, and the first indoor temperature T1 and the second indoor temperature T2 of the first room R1 and the second room T2 have reached their respective set temperatures; thus, in the first room R1 and the second room After R2 switches from the state of no heat exchange to the state of heat exchange, the temperature difference between the first indoor temperature T1 of the first room R1 and the second indoor temperature T2 of the second room R2 is relatively large; After the heat exchange between the room R1 and the second room R2, the set temperature shared by the first room R1 and the second room R2 needs to be balanced between the optimum temperatures of each member. At this time, the first room R1 usually needs to be cooled , the situation that the second room R2 needs to be heated.

After the heat exchange between the first room R1 and the second room R2, if both the first air conditioner K1 and the second air conditioner K2 are stopped, under the condition of natural heat exchange, the temperature of the two rooms tends to be balanced, obviously it will be It takes too long; if the first air conditioner K1 and the second air conditioner K2 are both cooled and heated according to the conventional control method, such as using proportional-integral-differential (Proportion Integral Differential, PID), then in the first room R1 When the temperature difference between the first room R1 and the second room R2 is large, both the first air conditioner K1 and the second air conditioner K2 decrease rapidly, which is equivalent to performing rapid cooling when the heat flow between the first room R1 and the second room R2 is the largest. Cooling or heating minimizes the effect of heat flow between the first room R1 and the second room R2 on cooling the first indoor temperature T1 and increasing the second indoor temperature T2, resulting in higher energy consumption.

In the method for controlling the air conditioner provided in the embodiment of the present application, the room temperature change rate (the cooling rate of the first room R1 and the heating rate of the second room R2) corresponding to the third temperature adjustment stage is smaller than the room temperature corresponding to the second temperature adjustment stage The rate of change is conducive to the first room R1 and the first indoor temperature T1 and the second indoor temperature T2 of the second room R2 to reach the set temperature relatively stably (the shared set temperature of the first room R1 and the second room R2), The temperature change rate corresponding to the second temperature adjustment stage is the largest, which is beneficial to shorten the time required for the first indoor temperature T1 and the second indoor temperature T2 to reach the set temperature; the room temperature change rate of the first temperature adjustment stage is smaller than the room temperature change of the second stage The speed is conducive to maintaining a relatively high temperature difference between the first room R1 and the second room R2, making full use of the heat flow between the first room R1 and the second room R2, and reducing energy consumption. By setting different temperature adjustment stages, a balance can be struck between reducing the total energy consumption of the air conditioner and rapid temperature adjustment.

Fig. 2 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present application. The method for controlling the air conditioner may be executed by a controller of the air conditioner, or by a control panel or a remote controller communicatively connected with the air conditioner, or by a server of a smart home system. In the embodiment of the present application, the method for controlling the air conditioner is exemplarily described by taking the method for controlling the air conditioner to control the first air conditioner and the second air conditioner shown in FIG. 1 as an example.

As shown in Figure 2, the method for controlling the air conditioner includes:

S201. For the first room and the second room where there is heat exchange, in the case of cooling the first room and raising the temperature of the second room, obtain the first indoor temperature of the first room at the current moment and the first set temperature. a temperature difference, and a second temperature difference between the set temperature and the second indoor temperature of the second room.

In a home or office scenario, it is usually necessary to balance the temperature of each room, that is, adjust the indoor temperature of each room to the same set temperature, so as to meet the comfort requirements of each user.

The situation that neither the first indoor temperature of the first room nor the second indoor temperature of the second room reaches the set temperature may include: both the first indoor temperature and the second indoor temperature are greater than the set temperature, and at this time, the first room temperature needs to be adjusted. Simultaneous temperature reduction treatment with the second room; or, the first room temperature and the second room temperature are both lower than the set temperature, at this time, the first room and the second room need to be simultaneously heated; or, the first room temperature and the second room temperature Among the second indoor temperatures, one indoor temperature is higher than the set temperature, and the other indoor temperature is lower than the set temperature. At this time, it is necessary to heat up one room and cool down the other room.

The method for controlling the air conditioner provided in the embodiment of the present application is applicable to the situation where the temperature in the first room is higher than the set temperature and the temperature in the second room is lower than the set temperature, and it is necessary to cool down the first room and raise the temperature of the second room scene.

In the embodiment of the present application, for the convenience of description, the first temperature difference and the second temperature difference exist in the form of positive values, for example, the first temperature difference can be obtained by subtracting the set temperature from the first indoor temperature, The second indoor temperature is subtracted from the set temperature to obtain a second temperature difference.

Of course, the first temperature difference and the second temperature difference exist in the form of positive values, which are only for the convenience of explanation. In practical applications, the first temperature difference is usually obtained by subtracting the first indoor temperature from the set temperature. The set temperature is subtracted from the second indoor temperature to obtain the second temperature difference, and then the signs of the first indoor temperature and the second indoor temperature are taken into consideration when performing calculations using the first indoor temperature and the second indoor temperature.

S202. According to the first temperature difference value and the second temperature difference value, determine the current temperature regulation stage among the three temperature regulation stages.

Before performing this step, first set three temperature adjustment stages, and the three temperature adjustment stages are the first temperature adjustment stage, the second temperature adjustment stage and the third temperature adjustment stage in descending order of the temperature difference.

The three temperature adjustment stages here include three cooling stages corresponding to the first room and three heating stages corresponding to the second room. Moreover, the three cooling stages corresponding to the first room are not exactly the same as the three heating stages corresponding to the second room, so as to adapt to the working conditions of the first room and the second room. The first temperature adjustment stage corresponds to the first cooling stage of the first room and the first heating stage of the second room, the second temperature adjustment stage corresponds to the second cooling stage of the first room and the second heating stage of the second room, and the third The temperature adjustment stage corresponds to the third cooling stage of the first room and the third heating stage of the second room.

Specifically, the interval greater than the first temperature threshold can be determined as the first cooling stage corresponding to the first room, and the interval less than or equal to the first temperature threshold and greater than the second temperature threshold can be determined as the second cooling stage of the first room , determine the interval less than or equal to the second temperature threshold as the third cooling stage of the first room; determine the interval greater than the third temperature threshold as the first heating stage corresponding to the second room, and determine the interval less than or equal to the third temperature threshold And the interval greater than the fourth temperature threshold is determined as the second heating stage of the second room, and the interval smaller than the fourth temperature threshold is determined as the third heating stage of the second room. Here, the first temperature threshold, the second temperature threshold, the third temperature threshold and the fourth temperature threshold can all be set before the air conditioner leaves the factory; they can also be manually adjusted by professionals after the air conditioner leaves the factory.

In this way, according to the first temperature difference and the second temperature difference, determining the current temperature adjustment stage in the three temperature adjustment stages may include: when the first temperature difference is greater than the first temperature threshold, and the second temperature difference is greater than In the case of the third temperature threshold, the first temperature adjustment stage is determined as the current temperature adjustment stage; when the first temperature difference is less than or equal to the first temperature threshold, greater than the second temperature threshold, and the second temperature difference is less than or equal to When the third temperature threshold is greater than the fourth temperature threshold, the second temperature adjustment stage is determined as the current temperature adjustment stage; when the first temperature difference is less than or equal to the second temperature threshold, and the second temperature difference is less than or equal to In the case of the fourth temperature threshold, the third temperature regulation stage is determined as the current temperature regulation stage.

Of course, when the current temperature regulation stage is the first temperature regulation stage, for the second room, this situation is the first temperature drop stage, and for the second room, this situation is the first temperature rise stage; When the temperature stage is the second temperature regulation stage or the third temperature regulation stage, the specific meanings of the current temperature regulation stage for the first room and the second room are similar, and will not be repeated here.

After the first temperature adjustment stage is determined as the current temperature adjustment stage, the first temperature difference in the first room continues to decrease, and the second temperature difference in the second room continues to decrease. greater than the first temperature threshold, and the second temperature difference is greater than the third temperature threshold, or the first temperature difference will be greater than the first temperature threshold, and the second temperature difference is not greater than the third temperature threshold At this time, the first temperature adjustment stage is still determined as the current temperature adjustment stage until the first temperature difference is greater than the second temperature threshold and less than or equal to the first temperature threshold, the second temperature difference is greater than the fourth temperature threshold and is less than or equal to the third temperature threshold, and then determine the second temperature adjustment stage as the current temperature adjustment stage.

After the second temperature adjustment stage is determined as the current temperature adjustment stage, the first temperature difference in the first room continues to decrease, and the second temperature difference in the second room continues to decrease, and the first temperature difference less than Or equal to the second temperature threshold, and the second temperature difference is greater than the fourth temperature threshold, or, there will be a first temperature difference greater than the second temperature threshold, and the second temperature difference is less than or equal to the fourth temperature threshold At this time, the second temperature adjustment stage is still determined as the current temperature adjustment stage until the first temperature difference is less than or equal to the second temperature threshold, and the second temperature difference is less than or equal to the fourth temperature threshold, and then the The third temperature regulation stage is determined as the current temperature regulation stage.

The current temperature adjustment stage can be determined through the above technical solution.

S203. According to the corresponding relationship between the temperature adjustment stage and the room temperature change rate, determine the current temperature drop rate of the first room and the current temperature increase rate of the second room corresponding to the current temperature adjustment stage.

The corresponding relationship between the temperature adjustment stage and the room temperature change rate is also set before executing the method. Moreover, for the first room, the corresponding relationship between the temperature adjustment stage and the rate of room temperature change refers to the corresponding relationship between the cooling stage and the room temperature drop rate; for the second room, the corresponding relationship between the temperature adjustment stage and the rate of room temperature change , refers to the corresponding relationship between the heating stage and the room temperature rising rate.

The room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the first temperature adjustment stage, and the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the third temperature adjustment stage. In the first room, the room temperature drop rate corresponding to the second cooling stage is greater than the room temperature drop rate corresponding to the first cooling stage, and the room temperature drop rate corresponding to the second cooling stage is greater than the room temperature drop rate corresponding to the third cooling stage; in the second room Among them, the room temperature rise rate corresponding to the second temperature rise stage is greater than the room temperature rise rate corresponding to the first temperature rise stage, and the room temperature rise rate corresponding to the second temperature rise stage is greater than the room temperature rise rate corresponding to the third temperature rise stage.

The correspondence between the temperature adjustment stage and the room temperature change rate may be the correspondence between the temperature adjustment stage and the fixed room temperature change rate, or the correspondence between the temperature adjustment stage and the average room temperature change rate.

For example, the first temperature adjustment stage corresponds to the first cooling rate of the first room and the second heating rate of the second room, and the second temperature adjustment phase corresponds to the second cooling rate of the first room and the second heating rate of the second room, The first cooling rate, the second cooling rate, the first heating rate and the second heating rate can all be fixed room temperature change rates; the third temperature adjustment stage corresponds to the third cooling rate of the first room and the third heating rate of the second room rate, the third cooling rate and the third heating rate may be the average room temperature change rate.

Through the above manner, the current cooling rate of the first air conditioner and the current heating rate of the second air conditioner can be obtained.

S204. Control the first air conditioner in the first room according to the current cooling rate, and control the second air conditioner in the second room according to the current heating rate.

The cooling rate of the first room has a corresponding relationship with the cooling power of the first air conditioner, and the heating rate of the second room has a corresponding relationship with the heating power of the second air conditioner. After the current cooling rate is obtained, the current cooling power corresponding to the current cooling rate can be obtained, and the first air conditioner is controlled according to the cooling power. For example, the higher the operating frequency of the compressor of the first air conditioner is, the greater the cooling power of the first air conditioner is. , the higher the speed of the indoor fan of the first air conditioner, the greater the cooling power of the first air conditioner; after obtaining the current heating rate, the current heating power corresponding to the current heating rate can be obtained, and the second air conditioner is controlled according to the heating power For example, the higher the operating frequency of the compressor of the second air conditioner is, the greater the heating power of the second air conditioner is, and the higher the speed of the indoor fan of the second air conditioner is, the greater the heating power of the second air conditioner is.

When the current temperature adjustment stage is the third temperature adjustment stage, the first air conditioner and the second air conditioner can be controlled according to the control method in the prior art (such as the PID control method). At this time, the first temperature difference and the second temperature difference The temperature difference is small, the difference between the first indoor temperature and the second indoor temperature is also relatively small, the heat flow of the two rooms has little influence on the temperature of the two rooms, and the existing control method will not cause Excessive overshoot also makes it easier to stabilize the first and second indoor temperatures at the set temperatures.

Fig. 3 is a schematic diagram of changes in a first indoor temperature, a second indoor temperature and a temperature difference between them according to an embodiment of the present application.

In Fig. 3, the horizontal axis is the time t-axis, and the vertical axis is the temperature T-axis; the curve T1 is the first indoor temperature change curve, the curve T11 is the first indoor temperature change curve in the first temperature adjustment stage, and the curve T12 is the first indoor temperature change curve. The change curve of the first indoor temperature in the second temperature adjustment stage, the curve T13 is the corresponding change curve of the first indoor temperature in the third temperature adjustment stage; the curve T2 is the schematic diagram of the second indoor temperature, and the curve T21 is the second indoor temperature in the first The change curve of the temperature adjustment stage, the curve T22 is the change curve of the second indoor temperature in the second temperature adjustment stage, and the curve T23 is the change curve of the second indoor temperature in the third temperature adjustment stage; T0 is the set temperature; the curve △ T is the change curve of the temperature difference between the first indoor temperature T1 and the second indoor temperature T2, the curve ΔT1 is the change curve of the temperature difference between the first indoor temperature T11 and the second indoor temperature T21 in the first temperature adjustment stage, the curve ΔT2 is the change curve of the temperature difference between the first indoor temperature T12 and the second indoor temperature T22 in the second temperature adjustment stage, and the curve ΔT3 is the temperature difference between the first indoor temperature T13 and the second indoor temperature T23 in the third The change curve of the temperature adjustment stage. Thus, the integral value of the curve ΔT versus time in the figure corresponds to the total amount of heat flow in the first room and the second room. It can be seen in Figure 3 that the integral value of the curve ΔT1 to time (the area enclosed by the curve ΔT1 and the time t axis) is relatively large, which is conducive to making full use of the flow between the first room and the second room to In the process of cooling down the first room and heating up the second room, the total energy consumption of the first air conditioner and the second air conditioner is reduced.

In the foregoing implementation, the first temperature threshold, the second temperature threshold, the third temperature threshold, and the fourth temperature threshold are explained, and the first temperature threshold and the third temperature threshold can also be determined in the manner shown in FIG. 4 .

As shown in Figure 4, the determination process of the three temperature adjustment stages may include:

S401. When the method is executed for the first time, obtain a third temperature difference between the third indoor temperature of the first room and the set temperature, and a fourth temperature difference between the set temperature and the fourth indoor temperature of the second room.

After the first room and the second room are switched from the state without heat exchange to the state with heat exchange, it is the first time to execute the method; or, after the set temperature is changed, it is the first time to execute the method.

That is, when executing this method for the first time, according to the third indoor temperature of the first room, the fourth set temperature and the set temperature of the second room at that time, three temperature adjustment stages (three temperature adjustment stages including the first room The three cooling stages of the room and the three heating stages of the second room) are determined.

After the three temperature adjustment stages are determined, S201 , S202 , S203 and S204 in the foregoing embodiments are executed.

Similarly, for the sake of illustration, the third temperature difference and the fourth temperature difference here are still positive values, the third temperature difference is obtained by subtracting the set temperature from the third indoor temperature, and the third temperature difference is obtained by subtracting the set temperature from the set temperature Four indoor temperatures to obtain the fourth temperature difference. In practical applications, both the third temperature difference and the fourth temperature difference may have positive and negative signs.

S402. Obtain a first product of the third temperature difference and the set ratio, and a second product of the fourth temperature difference and the set ratio.

The set ratio here may be greater than or equal to 1/2, for example, the set ratio may be 1/2, 2/3, 3/4 or 4/5.

If the set ratio is too large, the time required for the first indoor temperature and the second indoor temperature to reach the set temperature will be too long; if the set ratio is too small, the energy consumption of the first air conditioner and the second air conditioner will increase. Those skilled in the art can determine the set ratio that meets the actual needs based on this, and details will not be repeated here.

S403. Determine a first temperature threshold and a third temperature threshold according to the magnitude relationship between the first product and the second product.

If the first product is less than the second product, the first product may be determined as the first temperature threshold; if the first product is greater than or equal to the second product, the second product may be determined as the third temperature threshold.

Specifically, determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product includes: determining the first product as the first temperature threshold when the first product is smaller than the second product ; obtain the first threshold difference between the first temperature threshold and the second temperature threshold; obtain the second threshold difference corresponding to the first threshold difference; determine the sum of the fourth temperature threshold and the second threshold difference is the third temperature threshold.

Alternatively, determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product may include: when the first product is greater than or equal to the second product, determining the second product as the third temperature threshold; obtain the second threshold difference between the third temperature threshold and the fourth temperature threshold; obtain the first threshold difference corresponding to the second threshold difference; determine the sum of the second temperature threshold and the first threshold difference is the first temperature threshold.

Both the above-mentioned second temperature threshold and the fourth temperature threshold are known values. The second temperature threshold is related to the stability of the first air conditioner when it adjusts the temperature of the first room. The stronger the stability of the first air conditioner, the smaller the second temperature threshold, the weaker the stability of the first air conditioner, and the weaker the stability of the second air conditioner. The temperature threshold needs to be larger; the above-mentioned fourth temperature threshold is related to the stability ability of the second air conditioner to adjust the temperature of the second room. The stronger the stability ability of the second air conditioner, the smaller the fourth temperature threshold can be. The stability of the second air conditioner The weaker the capability, the larger the fourth temperature threshold needs to be.

The stability of the first air conditioner when it adjusts the temperature of the first room can be determined by the time required for the temperature in the first room to reach the set temperature for the first time until the difference between the temperature in the first room and the set temperature stabilizes within the range of the dead zone. The longer the duration, the weaker the stability of the first air conditioner is, and the shorter the duration is, the stronger the stability of the first air conditioner is.

The stability of the second air conditioner when it adjusts the temperature of the second room can be determined by the time required for the temperature of the second room to reach the set temperature for the first time until the difference between the temperature of the second room and the set temperature stabilizes within the range of the dead zone. The longer the duration, the weaker the stability of the second air conditioner is, and the shorter the duration is, the stronger the stability of the second air conditioner is.

The above correspondence between the first threshold difference and the second threshold difference may include: when there is no heat exchange between the first room and the second room, controlling the first air conditioner to run for the first set time according to the set cooling power , determine the falling temperature of the first room as the first threshold difference; control the second air conditioner to run according to the set heating power for the first set time, and determine the rising temperature of the second room as the second temperature threshold.

The longer the above-mentioned first set time, the longer the time for the first room to rapidly cool down, and the shorter the time for the first room to reach the set temperature from the initial temperature. Similarly, the second room will reach the set temperature from the initial temperature The shorter the required time; the shorter the above-mentioned first set time, the shorter the time for the first room to quickly cool down, and the longer the time for the first room to reach the set temperature from the initial temperature. The longer it takes for the temperature to reach the set temperature. Those skilled in the art can adaptively adjust the above-mentioned first set time length based on the expected time length for the first room to reach the set temperature from the initial temperature, and the expected time length for the second room to reach the set temperature from the initial temperature, which will not be done here Specific limits.

The set cooling power here may be the rated cooling power of the first air conditioner, and the set heating power may be the rated heating power of the second air conditioner; or, the ratio of the set cooling power to the rated cooling power of the first air conditioner, and The ratio of the set heating power to the rated heating power of the second air conditioner is the same. The ratio can be 5/6, 4/5, 3/4, etc.

In the manner described above, the first temperature threshold and the third temperature threshold can be determined.

S404. Divide the cooling process of the first room into three temperature adjustment stages according to the first temperature threshold and the second temperature threshold.

S405. Divide the temperature raising process of the second room into three temperature adjustment stages according to the third temperature threshold and the fourth temperature threshold.

There is no distinction between S405 and S404.

The first temperature threshold determined according to the above scheme is more in line with the cooling working condition of the first room, and the third temperature threshold determined according to the above scheme is more in line with the heating working condition of the second room, and then divided into those that meet the working conditions of the first room and the second room. Three temperature adjustment stages for two-room conditions.

The above process is a process of dividing three temperature adjustment stages. According to the dividing rules, the moment when the temperature of the first room reaches the first temperature threshold and the temperature of the second room reaches the third temperature threshold is the same; the temperature of the first room reaches the second temperature The threshold is the same as the moment when the temperature of the second room reaches the fourth temperature threshold. In a specific application, the temperature adjustment stage is still determined according to the first temperature difference and the second temperature difference as described above.

The following is a detailed description of the room temperature change rate corresponding to the three temperature adjustment stages:

In the third temperature adjustment stage, both the first air conditioner and the second air conditioner can use the existing control method with the function of eliminating deviation, the room temperature drop rate of the first room (the third temperature drop rate) and the room temperature rise rate of the second room (the first room temperature increase rate) Three heating rates) can be controlled by the corresponding control method.

In the second temperature adjustment stage, the room temperature drop rate (second temperature drop rate) of the first room corresponds to the set cooling power of the first air conditioner; the room temperature rise rate (second temperature increase rate) of the second room corresponds to the set cooling power of the second air conditioner Customized thermal power correspondence. The set cooling power can be 5/6, 4/5 or 3/4 of the rated cooling power of the first air conditioner, and the set heating power can be 5/6, 4/5 or 3/4 of the rated heating power of the second air conditioner 3/4; the ratio of the set cooling power to the rated cooling power of the first air conditioner may be equal to the ratio of the set heating power to the rated heating power of the second air conditioner.

In the first temperature adjustment stage, the corresponding relationship between the temperature adjustment stage and the room temperature change rate can be determined in the following manner: obtain the temperature drop value from the third temperature difference to the first temperature threshold; The quotient determines the first cooling rate of the first room corresponding to the first temperature adjustment stage; obtains the temperature increase value from the fourth temperature difference to the third temperature threshold; according to the quotient of the temperature increase value and the second set duration , to determine the first heating rate of the second room corresponding to the first temperature adjustment stage. The second set duration is generally greater than the aforementioned first set duration, and the second set duration may be 2 times, 2.5 times, 3 times or more of the first set duration.

According to the above method, the corresponding relationship between the temperature adjustment stage and the room temperature change rate can be obtained, and then the current temperature adjustment stage can be determined according to the first temperature difference and the second temperature difference, and the first air conditioner and the second air conditioner can be adjusted according to the current temperature adjustment stage. Take control.

Fig. 5 is a schematic diagram of an apparatus for controlling an air conditioner provided by an embodiment of the present application. The device for controlling the air conditioner can be implemented in the form of software, hardware or a combination of software and hardware.

As shown in FIG. 5, the device for controlling the air conditioner includes an obtaining module 51, a first determining module 52, a second determining module 53 and a control module 54;

The obtaining module 51 is configured to obtain the first indoor temperature and the set temperature of the first room at the current moment when the temperature of the first room is lowered and the temperature of the second room is raised for the first room and the second room where heat exchange exists. a first temperature difference between the temperature and a second temperature difference between the set temperature and the second indoor temperature of the second room;

The first determination module 52 is configured to determine the current temperature regulation stage in three temperature regulation stages according to the first temperature difference value and the second temperature difference value; The sequence is the first temperature regulation stage, the second temperature regulation stage and the third temperature regulation stage;

The second determination module 53 is configured to determine the current cooling rate of the first room and the current heating rate of the second room corresponding to the current temperature adjustment phase according to the corresponding relationship between the temperature adjustment phase and the room temperature change rate; wherein, the second temperature adjustment The room temperature change rate corresponding to the stage is greater than the room temperature change rate corresponding to the first temperature adjustment stage, and the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the third temperature adjustment stage;

The control module 54 is configured to control the first air conditioner in the first room according to the current cooling rate, and control the second air conditioner in the second room according to the current heating rate.

Optionally, the first determining module 52 includes a first determining unit, a second determining unit and a third determining unit, the first determining unit is configured to be greater than the first temperature threshold when the first temperature difference is greater than the first temperature threshold, and the second temperature difference If it is greater than the third temperature threshold, the first temperature adjustment stage is determined as the current temperature adjustment stage; the second determination unit is configured to be greater than the second temperature threshold when the first temperature difference is less than or equal to the first temperature threshold, and When the second temperature difference is less than or equal to the third temperature threshold and greater than the fourth temperature threshold, the second temperature regulation stage is determined as the current temperature regulation stage; the third determination unit is configured to be less than or equal to the first temperature difference In the case that is equal to the second temperature threshold and the second temperature difference is less than or equal to the fourth temperature threshold, the third temperature adjustment stage is determined as the current temperature adjustment stage.

Optionally, the determination of the three temperature adjustment stages includes: when the method is executed for the first time, obtaining the third temperature difference between the third indoor temperature of the first room and the set temperature and the third temperature difference between the set temperature and the second room. The fourth temperature difference of the four indoor temperatures; obtain the first product of the third temperature difference and the set ratio, and the second product of the fourth temperature difference and the set ratio; according to the size of the first product and the second product relationship, determine the first temperature threshold and the third temperature threshold; according to the first temperature threshold and the second temperature threshold, the cooling process of the first room is divided into three temperature adjustment stages; according to the third temperature threshold and the fourth temperature threshold, the second The heating process of the second room is divided into three temperature adjustment stages; wherein, the second temperature threshold and the fourth temperature threshold are known values.

Optionally, determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product includes: when the first product is smaller than the second product, determining the first product as the first temperature Threshold; obtain the first threshold difference between the first temperature threshold and the second temperature threshold; obtain the second threshold difference corresponding to the first threshold difference; combine the sum of the fourth temperature threshold and the second threshold difference, determined as the third temperature threshold.

Optionally, determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product includes: determining the second product as the second product when the first product is greater than or equal to the second product Three temperature thresholds; obtaining a second threshold difference between the third temperature threshold and the fourth temperature threshold; obtaining a first threshold difference corresponding to the second threshold difference; summing the second temperature threshold and the first threshold difference, determined as the first temperature threshold.

Optionally, the corresponding relationship between the first threshold difference and the second threshold difference includes: controlling the first air conditioner to run for a first set time according to the set cooling power, and determining the falling temperature of the first room as the first threshold difference value; control the second air conditioner to run for the first set time according to the set heating power, and determine the rising temperature of the second room as the second temperature threshold.

Optionally, the determination of the corresponding relationship between the temperature adjustment stage and the room temperature change rate includes: obtaining the temperature drop value from the third temperature difference to the first temperature threshold; The first cooling rate of the first room corresponding to the first temperature adjustment stage; obtain the temperature rise value from the fourth temperature difference to the third temperature threshold; The first temperature rise rate of the second room corresponding to a temperature adjustment stage.

In some embodiments, the device for controlling the air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the method for controlling the air conditioner provided in the foregoing embodiments when executing the program instructions.

Fig. 6 is a schematic diagram of an apparatus for controlling an air conditioner provided by an embodiment of the present application. As shown in Figure 6, the device for controlling the air conditioner includes:

A processor (processor) 61 and a memory (memory) 62 may also include a communication interface (Communication Interface) 63 and a bus 64. Wherein, the processor 61 , the communication interface 63 , and the memory 62 can communicate with each other through the bus 64 . The communication interface 63 can be used for information transmission. The processor 61 can call the logic instructions in the memory 62 to execute the method for controlling the air conditioner provided in the foregoing embodiments.

In addition, the above-mentioned logic instructions in the memory 62 can be implemented in the form of software function units and can be stored in a computer-readable storage medium when sold or used as an independent product.

The memory 62, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present application. The processor 61 executes the function application and data processing by running the software programs, instructions and modules stored in the memory 62, that is, implements the methods in the above method embodiments.

The memory 62 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the terminal device, and the like. In addition, the memory 62 may include a high-speed random access memory, and may also include a non-volatile memory.

An embodiment of the present application provides a multi-connected air conditioner, including the device for controlling the air conditioner provided in the foregoing embodiments.

An embodiment of the present application provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are configured to execute the method for controlling an air conditioner provided in the foregoing embodiments.

An embodiment of the present application provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by the computer, the computer is made to execute the information provided in the foregoing embodiments. The method used to control the air conditioner.

The above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present application can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to make a computer device (which can be a personal computer, a server, or a network equipment, etc.) to execute all or part of the steps of the methods in the embodiments of the present application. The aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc. A medium that can store program code, or a transitory storage medium.

The above description and accompanying drawings sufficiently illustrate the embodiments of the present application to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, procedural, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well unless the context clearly indicates otherwise . In addition, when used in this application, the term "comprise" and its variants "comprises" and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element qualified by the statement "comprising a ..." does not preclude the presence of additional identical elements in the process, method or apparatus comprising the element. Herein, what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other. For the method, product, etc. disclosed in the embodiment, if it corresponds to the method part disclosed in the embodiment, then the relevant part can refer to the description of the method part.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraints of the technical solution. A skilled person may use different methods for each specific application to realize the described functions, but such realization should not be regarded as exceeding the scope of the embodiments of the present application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of units may only be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrate into another system, or some features may be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. A unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

The flowcharts and block diagrams in the figures show the architecture, functions and operations of possible implementations of the systems, methods and computer program products according to the embodiments of the present application. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more executable instruction. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Claims

A method for controlling an air conditioner, comprising:

For the first room and the second room where there is heat exchange, in the case of cooling down the first room and raising the temperature of the second room, obtain the first temperature difference between the first indoor temperature of the first room at the current moment and the set temperature value, and a second temperature difference between the set temperature and the second indoor temperature of the second room;

According to the first temperature difference value and the second temperature difference value, determine the current temperature regulation stage in the three temperature regulation stages; wherein, the three temperature regulation stages are in descending order of the temperature difference values It is the first temperature regulation stage, the second temperature regulation stage and the third temperature regulation stage;

According to the corresponding relationship between the temperature adjustment stage and the room temperature change rate, determine the current temperature drop rate of the first room corresponding to the current temperature adjustment stage and the current temperature increase rate of the second room; wherein, the second temperature adjustment The room temperature change rate corresponding to the stage is greater than the room temperature change rate corresponding to the first temperature adjustment stage, and the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the third temperature adjustment stage;

The first air conditioner in the first room is controlled according to the current cooling rate, and the second air conditioner in the second room is controlled according to the current heating rate.
The method according to claim 1, wherein, according to the first temperature difference and the second temperature difference, determining the current temperature regulation stage in three temperature regulation stages includes:

When the first temperature difference is greater than a first temperature threshold and the second temperature difference is greater than a third temperature threshold, determining the first temperature adjustment stage as the current temperature adjustment stage;

When the first temperature difference is less than or equal to the first temperature threshold and greater than the second temperature threshold, and the second temperature difference is less than or equal to the third temperature threshold and greater than the fourth temperature threshold, the The second temperature regulation stage is determined as the current temperature regulation stage;

When the first temperature difference is less than or equal to the second temperature threshold, and the second temperature difference is less than or equal to the fourth temperature threshold, the third temperature adjustment stage is determined as the current temperature adjustment stage.
The method according to claim 1 or 2, wherein the determination of the three temperature adjustment stages comprises:

When the method is executed for the first time, a third temperature difference between the third indoor temperature of the first room and the set temperature and a fourth temperature difference between the set temperature and the fourth indoor temperature of the second room are obtained;

Obtaining a first product of the third temperature difference and a set ratio, and a second product of the fourth temperature difference and the set ratio;

determining a first temperature threshold and a third temperature threshold according to a size relationship between the first product and the second product;

dividing the cooling process of the first room into three temperature adjustment stages according to the first temperature threshold and the second temperature threshold;

dividing the heating process of the second room into three temperature adjustment stages according to the third temperature threshold and the fourth temperature threshold;

Wherein, the second temperature threshold and the fourth temperature threshold are known values.
The method according to claim 3, wherein determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product comprises:

if the first product is less than the second product, determining the first product as the first temperature threshold;

obtaining a first threshold difference between the first temperature threshold and the second temperature threshold;

obtaining a second threshold difference corresponding to the first threshold difference;

The sum of the difference between the fourth temperature threshold and the second threshold is determined as the third temperature threshold.
The method according to claim 3, wherein determining the first temperature threshold and the third temperature threshold according to the size relationship between the first product and the second product comprises:

determining the second product as the third temperature threshold if the first product is greater than or equal to the second product;

obtaining a second threshold difference between the third temperature threshold and the fourth temperature threshold;

obtaining a first threshold difference corresponding to the second threshold difference;

The sum of the difference between the second temperature threshold and the first threshold is determined as the first temperature threshold.
The method according to claim 4 or 5, wherein the correspondence between the first threshold difference and the second threshold difference comprises:

controlling the first air conditioner to run for a first set time according to a set cooling power, and determining the temperature drop of the first room as the first threshold difference;

The second air conditioner is controlled to run for a first set time according to the set heating power, and the rising temperature of the second room is determined as the second temperature threshold.
The method according to claim 3, characterized in that the determination of the corresponding relationship between the temperature adjustment stage and the room temperature change rate includes:

obtaining a temperature drop value from the third temperature difference to the first temperature threshold;

determining a first cooling rate of the first room corresponding to the first temperature adjustment stage according to the quotient of the temperature drop value and a second set duration;

obtaining a temperature rise value from the fourth temperature difference to the third temperature threshold;

A first temperature increase rate of the second room corresponding to the first temperature adjustment stage is determined according to a quotient of the temperature increase value and a second set duration.
A device for controlling an air conditioner, comprising:

The obtaining module is configured to obtain the first indoor temperature and setting of the first room at the current moment in the case of cooling the first room and raising the temperature of the second room for the first room and the second room where heat exchange exists a first temperature difference between the temperature and a second temperature difference between the set temperature and the second indoor temperature of the second room;

The first determination module is configured to determine the current temperature regulation stage in three temperature regulation stages according to the first temperature difference value and the second temperature difference value; wherein, the three temperature regulation stages are based on the temperature difference The order of values from large to small is the first temperature regulation stage, the second temperature regulation stage and the third temperature regulation stage;

The second determination module is configured to determine the current cooling rate of the first room and the current heating rate of the second room corresponding to the current temperature adjustment phase according to the correspondence between the temperature adjustment phase and the room temperature change rate; Wherein, the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the first temperature adjustment stage, and the room temperature change rate corresponding to the second temperature adjustment stage is greater than the room temperature change rate corresponding to the third temperature adjustment stage. rate of room temperature change;

A control module configured to control the first air conditioner in the first room according to the current cooling rate, and control the second air conditioner in the second room according to the current heating rate.
A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the program described in any one of claims 1 to 7 when executing the program instructions. The described method for controlling an air conditioner.
A multi-connected air conditioner, characterized by comprising the device for controlling the air conditioner as claimed in claim 8 or 9.