Air supply control method, air supply control device and intelligent air conditioner for multi-room air supply scene

Abstract

The application relates to the technical field of duct type air conditioners, and discloses a supply air control method for a multi-room supply air scene. The supply air control method for the multi-room supply air scene comprises the following steps: maintaining the fan rotating speed unchanged, increasing the opening degree of a first air valve from a first opening degree to a noise reduction opening degree; increasing the operating frequency of a compressor according to the cold quantity flow / heat quantity flow flowing from a second air outlet to a second room; locking the corresponding relationship between the total opening degree of the air valves of all the rooms and the fan rotating speed; and gradually reducing the opening degree of the first air valve from the noise reduction opening degree. The supply air control method for the multi-room supply air scene can reduce the air outlet noise in a room with noise reduction demand, and can reduce the adverse influence on the temperature control process in other rooms without noise reduction demand in a low energy consumption mode. The application further discloses a supply air control device for a multi-room supply air scene and an intelligent air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ducted air conditioning, for example to an air supply control method, an air supply control device and an intelligent air conditioner for a multi-room air supply scene. BACKGROUND

[0002] At present, in North American countries such as the United States and Canada, ducted split air conditioners are used to cool or heat indoor rooms. A ducted split air conditioner is composed of an outdoor unit, an indoor unit and a connecting pipe. Cold / heat air generated by the indoor unit in the cooling / heating mode first enters a main air supply pipeline and then is distributed to branch air supply pipeline branches, and finally enters each room through the air inlets at the ends of the branch air supply pipeline. Meanwhile, each room is provided with an air return inlet, and the air return inlet is provided with a corresponding air return pipeline branch. The air in the room is converged to the main air return pipeline and enters the indoor unit.

[0003] In a working scene or a learning scene, a user usually has a noise reduction demand. For air supply equipment such as an air conditioner, a fresh air machine and an air purifier, the way to reduce noise is usually to reduce the fan speed and reduce the air outlet speed.

[0004] In the implementation process of the embodiments of the present application, it is found that at least the following problems exist in the related art:

[0005] A ducted split air conditioner provides air volume for multiple rooms by one indoor unit. When the air outlet noise is reduced, according to the prior art, the air speed of one room is reduced, which will adversely affect the temperature control process in other rooms without noise reduction demand. If the fan speed of the indoor air conditioner is directly reduced and the operating frequency of the compressor is increased, the phenomenon of too low fan speed and too high compressor frequency may occur, which may lead to untimely heat exchange and waste of electric energy.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present application provide an air supply control method for a multi-room air supply scene, which can reduce the adverse effects on the temperature control process in other rooms without noise reduction demand in a low energy consumption manner after reducing the air outlet noise in the room with noise reduction demand.

[0009] In some embodiments, a plurality of rooms are provided with cold / heat by an air conditioner compressor, the plurality of rooms are provided with air by a fan, the fan provides air to each room through an air supply pipeline, each room is provided with an air outlet at a position communicating with the air supply pipeline, each air supply pipeline is provided with an independent air valve, a first room has a noise reduction requirement, and a second room does not have a noise reduction requirement; a method for controlling air supply of the plurality of rooms includes:

[0010] maintaining the rotation speed of the fan unchanged, increasing the opening degree of the first air valve from the first opening degree to the noise reduction opening degree, so that the air outlet noise of the first air outlet of the first room is less than the noise threshold;

[0011] increasing the operating frequency of the compressor according to the cold / heat flow rate flowing from the second air outlet to the second room, so that the cold / heat flow rate flowing to the second room is maintained stable after the opening degree of the first air valve is increased;

[0012] locking the corresponding relationship between the total opening degree of the air valves of all rooms and the rotation speed of the fan;

[0013] controlling the opening degree of the first air valve to gradually decrease from the noise reduction opening degree, and making the opening degree of the first air valve approach the target opening degree on the premise that the air outlet noise of the first air outlet is less than or equal to the noise threshold;

[0014] wherein the target opening degree can make the cold / heat flow rate flowing from the first air outlet to the first room consistent with the cold / heat flow rate flowing to the first room when the first air valve is at the first opening degree.

[0015] The method for controlling air supply of the plurality of rooms provided by the embodiments of the present application can achieve the following technical effects:

[0016] After the opening degree of the first air valve is increased from the first opening degree to the noise reduction opening degree, the rotation speed of the fan is maintained unchanged, which can reduce the air outlet speed of the first air valve, and the air outlet noise of the first air outlet at the noise reduction opening degree is less than the noise threshold, thereby meeting the noise reduction requirement of the first room.

[0017] During the process of increasing the opening degree of the first air valve from the first opening degree to the noise reduction opening degree, the first room reduces the air outlet speed by increasing the air outlet area, which will cause the air outlet flow rate of the air outlets in other rooms to decrease; the operating frequency of the compressor is increased according to the cold / heat flow rate flowing from the second air outlet to the second room, so that even if the air outlet flow rate of the second room decreases, the air outlet temperature of the second room is lower in the cooling mode and higher in the heating mode due to the increased operating frequency of the compressor, so that the cold / heat flow rate flowing to the second room can be maintained stable during the process of increasing the opening degree of the first air valve, thereby reducing the adverse effect on the temperature control process of the second room.

[0018] Therefore, instead of reducing the speed of the indoor air conditioner fan, the air outlet area of ​​the first room was increased to reduce the noise of the first room. The compressor frequency was increased to ensure that the temperature control process of other rooms without noise reduction needs was less or even unaffected.

[0019] Furthermore, the increased opening of the damper and the increased compressor frequency in the first room will significantly negatively impact the temperature control process in that room. To address this, the relationship between the total damper opening and fan speed across all rooms is locked. The opening of the first damper is controlled to gradually decrease from the noise-reduction setting, thereby continuously reducing the airflow from the first air outlet in the first room and minimizing the adverse effects on the temperature control process. Moreover, this reduction in airflow is performed under the condition that the noise level at the first air outlet is less than or equal to the noise threshold, ensuring that the noise reduction requirements of the first room are met.

[0020] However, those skilled in the art know that there is a positive correlation between the total opening degree of all room dampers and the fan speed. For example, the larger the opening degree of a certain damper, the greater the air volume supplied by that air supply duct will be, and the fan speed will naturally increase to maintain that larger air volume. Thus, as the opening degree of the first damper gradually decreases from the noise reduction opening degree, the fan speed will also decrease adaptively.

[0021] At this point, the speed of the indoor air conditioner fan decreases.

[0022] Overall, compared to directly reducing the indoor fan speed of the air conditioner to meet the noise reduction requirements of the first room, this method of increasing the opening of the first air valve while reducing the fan speed results in a lower overall reduction in fan speed. This also means that to meet the temperature requirements of other rooms without noise reduction needs, the compressor frequency needs to be increased less. Reducing the fan speed and increasing the compressor frequency less helps the indoor heat exchanger of the air conditioner to maintain a better heat exchange effect and reduce energy consumption.

[0023] Optionally, increasing the opening of the first air valve from the first opening to the noise reduction opening includes: directly switching the opening of the first air valve from the first opening to the noise reduction opening, or gradually increasing the opening of the first air valve from the first opening to the noise reduction opening.

[0024] Optionally, the air outlet noise of the first room is less than the noise threshold, including: the air outlet noise of the first room is less than the noise threshold, and the noise difference between the noise threshold and the air outlet noise is greater than or equal to the difference threshold.

[0025] The larger the threshold value, the greater the increase in compressor frequency during the process of increasing the opening degree of the first valve; conversely, the smaller the threshold value, the less the compressor frequency increases during the process of increasing the opening degree of the first valve. Typically, there is a balance point between the speed of the indoor fan and the compressor frequency. Based on this balance point, the lower the indoor fan speed or the higher the compressor frequency, the less energy-efficient it is. Those skilled in the art can set an appropriate threshold value according to energy-saving requirements.

[0026] Optionally, increasing the compressor's operating frequency based on the cooling / heating flow from the second air outlet to the second room includes: obtaining the second historical air volume and the second historical air temperature of the second air outlet in the second room at the moment the opening of the first air valve changes; determining the second target cooling / heating flow to the second room based on the second historical air volume and the second historical air temperature; determining the second target air temperature of the second room based on the second actual air volume and the second target cooling / heating flow during the process of increasing the opening of the first air valve; and increasing the compressor's operating frequency based on the second target air temperature.

[0027] This allows for normal temperature control in a second room where noise reduction is not required.

[0028] Optionally, the target opening degree is determined by: obtaining the first historical air volume and the first historical air temperature of the first air outlet at the moment when the opening degree of the first air valve changes; determining the first target cooling / heating flow rate based on the first historical air volume and the first historical air temperature; obtaining the first expected air temperature positively correlated with the real-time operating frequency, or obtaining the first real-time air temperature of the first air outlet; determining the target opening degree based on the first target cooling / heating flow rate and the first expected air temperature, or determining the target opening degree based on the first target cooling / heating flow rate and the first real-time air temperature.

[0029] The target opening degree provides direction for the process of reducing the opening degree of the first air valve.

[0030] Optionally, the relationship between the total opening degree of all air valves and the fan speed in all rooms can be locked, including:

[0031] After increasing the opening of the first air valve from the first opening to the noise reduction opening, the correspondence between the total opening of the air valve and the fan speed changes from the first correspondence to the second correspondence; wherein, when the fan speed is constant, the total opening of the air valve corresponding to the fan speed in the first correspondence is less than the total opening of the air valve corresponding to the fan speed in the second correspondence.

[0032] When adjusting the opening of the damper in subsequent steps, the fan speed is adaptively adjusted according to the second correspondence.

[0033] This allows the fan speed to be matched with the air valve opening, facilitating individual and accurate temperature control in each room.

[0034] Optionally, the air supply control method for multi-room air supply scenarios also includes: when the opening of the first air valve reaches its maximum opening and the air outlet noise is greater than or equal to the noise threshold, locking the correspondence between the total opening of the air valve and the fan speed; adjusting the opening of the first air valve back from the maximum opening to the first opening, maintaining the fan speed unchanged again, increasing the opening of the first air valve from the first opening to the noise reduction opening, and increasing the operating frequency of the compressor according to the cooling / heating flow from the second air outlet to the second room.

[0035] In some special cases, such as when the first opening degree is close to the maximum opening degree, this can also meet the noise reduction requirements.

[0036] Optionally, the first opening degree is positively correlated with a first temperature difference between the indoor temperature of the first room and the set temperature. The first room can then independently implement a temperature control process based on this.

[0037] Optionally, the air supply control method for multi-room air supply scenarios also includes: detecting whether there are users in each room; designating the room with users as the first room and the room without users as the second room.

[0038] Optionally, after the first room switches from a user-occupied state to a user-free state, if it remains in a user-free state for a set period of time, the first room will be switched to the second room.

[0039] In some embodiments, multiple rooms are supplied with cooling / heating capacity by an air conditioning compressor, and multiple rooms are supplied with air by a fan. The fan supplies air to each room through air supply ducts. Each room is provided with an air outlet at the connection point with the air supply duct. Each air supply duct is provided with an independent air valve. The first room has noise reduction requirements, while the second room does not. The air supply control device for the multi-room air supply scenario includes a first control module, a second control module, a first locking module, and a third control module.

[0040] The first control module is used to maintain the fan speed constant and increase the opening of the first air valve from the first opening to the noise reduction opening, so that the air outlet noise of the first air outlet of the first room is less than the noise threshold.

[0041] The second control module is used to increase the operating frequency of the compressor based on the cooling / heating flow rate from the second air outlet to the second room, so as to maintain a stable cooling / heating flow rate to the second room after increasing the opening of the first air valve.

[0042] The first locking module is used to lock the correspondence between the total opening degree of the air valves in all rooms and the fan speed;

[0043] The third control module is used to control the opening of the first air valve to gradually decrease from the noise reduction opening, so that the opening of the first air valve approaches the target opening under the premise that the air outlet noise is less than or equal to the noise threshold.

[0044] The target opening degree ensures that the flow rate of cold / heat from the first air outlet to the first room is consistent with the flow rate of cold / heat from the first air valve to the first room when the first air valve is at its first opening degree.

[0045] Based on the analysis of the aforementioned air supply control method for multi-room air supply scenarios, this method can also reduce the adverse effects on the temperature control process of rooms without noise reduction requirements, enabling rooms with noise reduction requirements to effectively reduce noise, with a low reduction in fan speed and minimal energy waste.

[0046] In some embodiments, the air supply control device for a multi-room air supply scenario includes a processor and a memory storing program instructions. The processor is configured to execute the air supply control method for a multi-room air supply scenario provided in the foregoing embodiments when executing the program instructions.

[0047] In some embodiments, the smart air conditioner includes:

[0048] Air conditioner unit;

[0049] The air supply control device for multi-room air supply scenarios provided in the foregoing embodiments is installed on the air conditioner body.

[0050] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0051] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrative descriptions and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements, and wherein:

[0052] Figure 1 This is a schematic diagram of an implementation scenario of a ducted split air conditioner provided in an embodiment of this application;

[0053] Figure 2 This is a flowchart illustrating an air supply control method for a multi-room air supply scenario provided in an embodiment of this application.

[0054] Figure 3 This is a flowchart illustrating an air supply control method for a multi-room air supply scenario provided in an embodiment of this application.

[0055] Figure 4 This is a flowchart illustrating an air supply control method for a multi-room air supply scenario provided in an embodiment of this application.

[0056] Figure 5 This is a schematic diagram of an air supply control device for a multi-room air supply scenario provided in an embodiment of this application;

[0057] Figure 6 This is a schematic diagram of an air supply control device for a multi-room air supply scenario provided in an embodiment of this application;

[0058] Figure 7 This is a schematic diagram of an intelligent air conditioner provided in an embodiment of this application. Detailed Implementation

[0059] To provide a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this application. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0060] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0061] Unless otherwise stated, the term "multiple" means two or more.

[0062] In this embodiment, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0063] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0064] Figure 1 This is a schematic diagram of an implementation scenario of a ducted split air conditioner provided in an embodiment of this application.

[0065] Combination Figure 1 As shown, the indoor unit 11 of the air conditioner is usually installed in an indoor space, and is usually concealed, for example, it can be installed in the indoor ceiling 14, which can save the machine room area.

[0066] The indoor unit 11 of the air conditioner is connected to other rooms 15 without an indoor unit 11 through the air supply duct 12. After the air undergoes heat exchange in the indoor unit 11, it enters each room 15 through the air supply duct 12. An air valve is installed at the end of the air supply duct 12 in each room 15. By adjusting the opening of the air valve, the air volume entering the room 15 can be adjusted, thereby adjusting the indoor temperature.

[0067] The indoor unit 11 of the air conditioner absorbs air from each room 15 through the return air duct 13, and the air in the return air duct 13 and the supply air duct 12 exchange heat inside the indoor unit 11.

[0068] The cooling / heating principle of a ducted split air conditioner is similar to that of a regular split air conditioner. It consists of an indoor unit 11 and an outdoor unit (not shown in the figure), which are connected by copper pipes during installation.

[0069] The static pressure at the air outlet of the indoor unit 11 of a ducted split air conditioner is higher than that at the air outlet of the indoor unit of a regular split air conditioner; the single unit capacity of a ducted split air conditioner is also relatively large, generally available in various specifications such as 5 horsepower, 8 horsepower, 10 horsepower, and 12.5 horsepower; the length of the copper pipe that can be connected between the indoor unit 11 and the outdoor unit of a ducted split air conditioner is also longer, generally up to 50m, and the height difference between the indoor and outdoor units can reach 20m.

[0070] In this application embodiment, the term "air volume" is used to represent the amount of air flowing per unit time, and its unit can be m. 3 / h、m 3 / min, L / h, L / min, etc.

[0071] This application uses a ducted split air conditioner as an example to illustrate an air supply control method for multi-room air supply scenarios. In other implementation scenarios and... Figure 1 When the implementation scenarios shown are similar, those skilled in the art can also adapt and apply the air supply control method for this multi-room air supply scenario. For example, the air supply control method for this multi-room air supply scenario can also be applied to central air conditioning scenarios.

[0072] Figure 2 This is a flowchart illustrating an air supply control method for a multi-room air supply scenario provided in an embodiment of this application. This air supply control method for a multi-room air supply scenario can be executed in the controller of an air conditioner. In a smart home scenario, this air supply control method for a multi-room air supply scenario is also executed in the server of the smart home system.

[0073] Multiple rooms are supplied with cooling / heating by one air conditioning compressor, and multiple rooms are supplied with air by one fan. The fan supplies air to each room through air supply ducts. Each room is equipped with an air outlet at the connection point with the air supply duct. Each air supply duct is equipped with an independent air valve. The first room has noise reduction requirements, while the second room does not.

[0074] Whether a room requires noise reduction depends on the users in that room. For example, you can check if there are users in each room; designate the room with users as the first room and the room without users as the second room. Alternatively, if there are users in a room, you can also determine whether the room requires noise reduction based on the users' instructions.

[0075] Alternatively, a corresponding noise threshold can be set for each room. If the exhaust noise of a room exceeds the noise threshold, it is confirmed that the room needs noise reduction; otherwise, there is no need for noise reduction.

[0076] Alternatively, if a room remains in a user-free state for a set period of time after it has switched from a user-occupied state to a user-free state, then the room will be switched to the second room.

[0077] Combination Figure 2 As shown, the air supply control methods for multi-room air supply scenarios include:

[0078] S201. Keep the fan speed constant and increase the opening of the first air valve from the first opening to the noise reduction opening.

[0079] The purpose of this step is to ensure that the noise level from the first air outlet in the first room is below the noise threshold.

[0080] Before this step is performed, the first air valve is at a first opening degree, which is positively correlated with a first temperature difference between the indoor temperature of the first room and the set temperature. In this way, the first room can independently perform the temperature control process.

[0081] Meanwhile, before this step is performed, the opening degree of the second valve corresponding to the second room is the second opening degree, which is positively correlated with the second temperature difference between the indoor temperature of the second room and the set temperature. In this way, the second room can independently perform the temperature control process.

[0082] That is, in the multi-room air supply scenario of this application embodiment, the first room and the second room are both subjected to independent temperature control processes.

[0083] During the process of increasing the opening of the first air valve, the opening of the second air valve in the second room remains unchanged by default. Of course, during the process of increasing the opening of the first air valve, the second room can still continue a relatively independent temperature adjustment process, that is, the opening of the second air valve can still be adjusted according to the temperature difference between the indoor temperature of the second room and the set temperature.

[0084] The opening of the first valve can be increased in the following ways: directly switch the opening of the first air valve from the first opening to the noise reduction opening, or gradually increase the opening of the first air valve from the first opening to the noise reduction opening.

[0085] The noise reduction opening can be the maximum opening of the first valve, or the noise reduction opening can be greater than or equal to half of the maximum opening of the first valve, and the noise reduction opening can be greater than the first opening.

[0086] Switching the opening of the first air valve directly from the first opening to the noise reduction opening allows the first room to achieve noise reduction more quickly.

[0087] The noise reduction setting can be preset, or it can be determined based on the air noise from the first air outlet of the first room. For example, when the first air valve is at its first opening, the greater the air noise from the first air outlet, the greater the noise reduction setting.

[0088] Alternatively, during the process of gradually increasing the opening of the first air valve from its initial opening to the noise reduction opening, the opening of the first air valve is increased in real time, and the exhaust noise of the first air outlet is obtained in real time. The process of increasing the opening of the first air valve is stopped when the exhaust noise is lower than the noise threshold; at this point, the opening of the first air valve is the noise reduction opening.

[0089] Optionally, the air outlet noise of the first room is less than the noise threshold, including: the air outlet noise of the first room is less than the noise threshold, and the noise difference between the noise threshold and the air outlet noise is greater than or equal to the difference threshold.

[0090] The larger the threshold value, the greater the increase in compressor frequency during the process of increasing the opening degree of the first valve; conversely, the smaller the threshold value, the less the compressor frequency increases during the process of increasing the opening degree of the first valve. Typically, there is a balance point between the speed of the indoor fan and the compressor frequency. Based on this balance point, the lower the indoor fan speed or the higher the compressor frequency, the less energy-efficient it is. Those skilled in the art can set an appropriate threshold value according to energy-saving requirements.

[0091] In some possible scenarios, this difference threshold can be 3dB.

[0092] Of course, the larger this difference threshold, the greater the reduction in the opening of the first air valve during the subsequent reduction process, the closer the actual opening of the first room is to the target opening, and the lower the impact on the temperature control process of the first room. Those skilled in the art can also set an appropriate difference threshold according to the temperature control requirements of the first room.

[0093] In the embodiments of this application, the number of first rooms is one or more, and the number of second rooms is one or more.

[0094] The air supply control method for a multi-room air supply scenario provided in this application embodiment is illustrated by taking a first room as an example.

[0095] When there are multiple first rooms, the air supply control method for the multi-room air supply scenario provided in this application embodiment is executed individually for each room. Multiple rooms influence each other; after adjusting one first room, the air supply speed of the other first rooms will decrease, and there is a possibility that the other first rooms will switch to second rooms without noise reduction requirements.

[0096] S202. Increase the operating frequency of the compressor based on the cooling / heating flow rate from the second air outlet to the second room.

[0097] The purpose of this step is to maintain a stable flow of cold / heat energy to the second room after increasing the opening of the first air valve. This will maintain the normal temperature control process of the second room and minimize or eliminate the adverse effects of the noise reduction process of the first room on the temperature control process of the second room.

[0098] Cooling / heating flow rate is used to represent the amount of cooling / heating flowing into the second room from the second air outlet per unit time.

[0099] Optionally, increasing the compressor's operating frequency based on the cooling / heating flow from the second air outlet to the second room includes: obtaining the second historical air volume and the second historical air temperature of the second air outlet in the second room at the moment the opening of the first air valve changes; determining the second target cooling / heating flow to the second room based on the second historical air volume and the second historical air temperature; determining the second target air temperature of the second room based on the second actual air volume and the second target cooling / heating flow during the process of increasing the opening of the first air valve; and increasing the compressor's operating frequency based on the second target air temperature.

[0100] In determining the second target cooling / heating flow rate, the larger the second historical air volume, the larger the second target cooling / heating flow rate; in cooling mode, the lower the second historical air temperature, the larger the second target cooling flow rate; and in heating mode, the higher the second historical air temperature, the larger the second target heating flow rate.

[0101] In the process of increasing the compressor's operating frequency, in cooling mode, the lower the second target air outlet temperature, the higher the compressor's operating frequency, and the greater the degree of increase in the compressor's operating frequency; in heating mode, the higher the second target air outlet temperature, the higher the compressor's operating frequency, and the greater the degree of increase in the compressor's operating frequency.

[0102] The above statement about keeping the flow of cold / heat to the second room stable usually means that the flow of cold / heat to the second room fluctuates within an acceptable range, rather than remaining absolutely stable.

[0103] S203. Lock the relationship between the total opening degree of all room air valves and the fan speed.

[0104] There is a positive correlation between the total opening degree of the air valves in all rooms and the fan speed. This positive correlation can be specifically set through the actual air supply duct layout model and the actual fan model.

[0105] When the opening of the damper in a room changes, the fan speed is adjusted accordingly so that the airflow into the room with the changing damper opening follows the damper opening, while the airflow into the room with the unchanged damper opening remains relatively stable.

[0106] In the process of keeping the fan constant and increasing the opening of the first air valve in S201, the relationship between the total opening of the air valve and the fan speed has been changed.

[0107] In this step, locking the correspondence between the opening degree of the air valves in all rooms and the fan speed refers to locking the correspondence between the total opening degree of the air valves in all rooms and the fan speed after maintaining the fan speed constant and increasing the opening degree of the first air valve.

[0108] After increasing the opening of the first air valve from the first opening to the noise reduction opening, the correspondence between the total opening of the air valve and the fan speed changes from the first correspondence to the second correspondence; wherein, when the fan speed is constant, the total opening of the air valve corresponding to the fan speed in the first correspondence is less than the total opening of the air valve corresponding to the fan speed in the second correspondence.

[0109] When the fan speed is the same as the fan speed maintained in step S201, the total opening of the air valve in the first correspondence is less than the total opening of the air valve in the second correspondence due to the increase in the opening of the first valve.

[0110] Locking the total opening degree of all room dampers and the fan speed means that when adjusting the damper opening degree in subsequent steps, the fan speed will be adaptively adjusted according to the second correspondence.

[0111] This allows the fan speed to be matched with the air valve opening, facilitating individual and accurate temperature control in each room.

[0112] This also facilitates the adaptive reduction of fan speed during the subsequent reduction of damper opening. The synchronous reduction of damper opening and fan speed further reduces the adverse effects on the temperature control process of the first room.

[0113] S204. Control the opening degree of the first air valve to gradually decrease from the noise reduction opening degree.

[0114] The purpose of this step is to bring the opening of the first air valve closer to the target opening, provided that the air noise at the first air outlet is less than or equal to the noise threshold.

[0115] The target opening degree ensures that the flow rate of cooling / heating energy from the first air outlet to the first room is consistent with the flow rate of cooling / heating energy from the first air valve to the first room when the first air valve is at its first opening degree. Typically, this "consistency" means that the difference between the flow rate of cooling / heating energy from the first air outlet to the first room at the target opening degree and the flow rate of cooling / heating energy from the first air valve to the first room when the first air valve is at its first opening degree is within an acceptable range.

[0116] If the actual opening of the first air valve reaches the target opening during the process of reducing the opening of the first air valve, it means that the noise reduction requirement of the first room is met and there is no impact on the temperature control process of the first room.

[0117] Optionally, the target opening degree is determined by: obtaining the first historical air volume and the first historical air temperature of the first air outlet at the moment when the opening degree of the first air valve changes; determining the first target cooling / heating flow rate based on the first historical air volume and the first historical air temperature; obtaining the first expected air temperature positively correlated with the real-time operating frequency, or obtaining the first real-time air temperature of the first air outlet; determining the target opening degree based on the first target cooling / heating flow rate and the first expected air temperature, or determining the target opening degree based on the first target cooling / heating flow rate and the first real-time air temperature.

[0118] In determining the first target cooling / heating flow rate, the larger the first historical air volume, the larger the first target cooling / heating flow rate; in cooling mode, the lower the first historical air temperature, the larger the first target cooling / heating flow rate; and in heating mode, the higher the first historical air temperature, the larger the first target cooling / heating flow rate.

[0119] As the compressor's operating frequency is increased, the room's real-time air outlet temperature typically lags behind the real-time compressor operating frequency. This first expected air outlet temperature is the predicted air outlet temperature, taking into account the temperature lag.

[0120] In determining the target opening degree, in cooling mode, the lower the first preset air outlet temperature / first real-time air outlet temperature, the smaller the target opening degree; in heating mode, the higher the first preset air outlet temperature / first real-time air outlet temperature, the smaller the target opening degree.

[0121] The target opening provides direction for the process of reducing the opening of the first air valve. In most cases, the opening of the first air valve cannot be reduced to the target opening. In a few cases, the opening of the first air valve can be reduced to the target opening.

[0122] The air supply control method for multi-room air supply scenarios provided in this application embodiment can achieve the following technical effects:

[0123] After increasing the opening of the first air valve from the first opening to the noise reduction opening, the fan speed remains unchanged, which can reduce the air outlet speed of the first air valve. Under this noise reduction opening, the air outlet noise of the first air valve is less than the noise threshold, thus meeting the noise reduction requirements of the first room.

[0124] During the process of increasing the opening of the first air valve from the initial opening to the noise reduction opening, the air outlet area of ​​the first room is increased to reduce the air outlet velocity. Since multiple rooms are supplied with air volume by a single fan, this will lead to a decrease in the air outlet flow rate in other rooms. Based on the cold / heat flow rate flowing from the second air outlet to the second room, the operating frequency of the compressor is increased. Thus, even if the air outlet flow rate of the second room decreases, the increased compressor operating frequency results in a lower outlet air temperature in the second room in cooling mode and a higher outlet air temperature in the second room in heating mode. Therefore, during the process of increasing the opening of the first air valve, the cold / heat flow rate flowing to the second room can be kept stable, thereby reducing the adverse effects on the temperature control process of the second room.

[0125] Therefore, instead of reducing the speed of the indoor air conditioner fan, the air outlet area of ​​the first room was increased to reduce the noise of the first room. The compressor frequency was increased to ensure that the temperature control process of other rooms without noise reduction needs was less or even unaffected.

[0126] Furthermore, the increased opening of the damper and the increased compressor frequency in the first room will significantly negatively impact the temperature control process in that room. To address this, the relationship between the total damper opening and fan speed across all rooms is locked. The opening of the first damper is controlled to gradually decrease from the noise-reduction setting, thereby continuously reducing the airflow from the first air outlet in the first room and minimizing the adverse effects on the temperature control process. Moreover, this reduction in airflow is performed under the condition that the noise level at the first air outlet is less than or equal to the noise threshold, ensuring that the noise reduction requirements of the first room are met.

[0127] However, those skilled in the art know that there is a positive correlation between the total opening degree of all room dampers and the fan speed. For example, the larger the opening degree of a certain damper, the greater the air volume supplied by that air supply duct will be, and the fan speed will naturally increase to maintain that larger air volume. Thus, as the opening degree of the first damper gradually decreases from the noise reduction opening degree, the fan speed will also decrease adaptively.

[0128] At this point, the speed of the indoor air conditioner fan decreases.

[0129] Overall, compared to directly reducing the indoor fan speed of the air conditioner to meet the noise reduction requirements of the first room, this method of increasing the opening of the first air valve while reducing the fan speed results in a lower overall reduction in fan speed. This also means that to meet the temperature requirements of other rooms without noise reduction needs, the compressor frequency needs to be increased less. Reducing the fan speed and increasing the compressor frequency less helps the indoor heat exchanger of the air conditioner to maintain a better heat exchange effect and reduce energy consumption.

[0130] If there is no noise reduction requirement in any room, or if there are no users in any room, the default control method can be restored.

[0131] Figure 3 This is a flowchart illustrating an air supply control method for a multi-room air supply scenario provided in an embodiment of this application. This air supply control method for a multi-room air supply scenario can be executed in the controller of an air conditioner. In a smart home scenario, this air supply control method for a multi-room air supply scenario is also executed in the server of the smart home system.

[0132] Multiple rooms are supplied with cooling / heating by one air conditioning compressor, and multiple rooms are supplied with air by one fan. The fan supplies air to each room through air supply ducts. Each room is equipped with an air outlet at the connection point with the air supply duct. Each air supply duct is equipped with an independent air valve. The first room has noise reduction requirements, while the second room does not.

[0133] Combination Figure 3 As shown, the air supply control methods for multi-room air supply scenarios include:

[0134] S301. Keep the fan speed constant and increase the opening of the first air valve from the first opening to the noise reduction opening.

[0135] S302. Obtain the air outlet noise of the first air outlet and determine whether the air outlet noise is less than the noise threshold: if yes, then execute S303; otherwise, execute S306.

[0136] S303. Increase the operating frequency of the compressor based on the cooling / heating flow rate from the second air outlet to the second room.

[0137] This is to maintain a stable flow rate of cold / heat to the second room after increasing the opening of the first air valve.

[0138] S304. Lock the relationship between the total opening degree of all room air valves and the fan speed.

[0139] S305, control the opening degree of the first air valve to gradually decrease from the noise reduction opening degree.

[0140] The purpose of this step is to bring the opening of the first air valve closer to the target opening, provided that the air noise at the first air outlet is less than or equal to the noise threshold.

[0141] S306, The correspondence between the total opening degree of the locking damper and the fan speed.

[0142] S307. Adjust the opening of the first air valve from the maximum opening back to the first opening, and execute S301.

[0143] In some special cases, such as when the first opening degree is close to the maximum opening degree, this technical solution can also meet the noise reduction requirements.

[0144] Figure 4 This is a flowchart illustrating an air supply control method for a multi-room air supply scenario provided in an embodiment of this application. This air supply control method for a multi-room air supply scenario can be executed in the controller of an air conditioner. In a smart home scenario, this air supply control method for a multi-room air supply scenario is also executed in the server of the smart home system.

[0145] Multiple rooms are supplied with cooling / heating by one air conditioning compressor, and multiple rooms are supplied with air by one fan. The fan supplies air to each room through air supply ducts, and each room is provided with an air outlet at the connection point with the air supply duct. Each air supply duct is equipped with an independent air valve.

[0146] Combination Figure 4 As shown, the air supply control methods for multi-room air supply scenarios include:

[0147] S401. Detect if there is anyone in the room: If yes, proceed to S402; otherwise, continue the detection process.

[0148] S402. Detect whether the noise level of the air outlet in the room exceeds the noise threshold: if so, proceed to S403; otherwise, repeat S401.

[0149] Of course, the process of repeatedly executing S401 in this step can be replaced by repeatedly executing S402;

[0150] The room with people in it and whose exhaust noise exceeds the noise threshold is the first room;

[0151] S403. Obtain and store the first opening degree of the first room, keep the fan speed constant, and increase the opening degree of the first air valve from the first opening degree to the noise reduction opening degree.

[0152] S404. Check if the noise level of the first air outlet is lower than the noise threshold: if yes, proceed to S406; otherwise, proceed to S405.

[0153] S405. Reduce the fan speed and repeat S404.

[0154] While reducing the fan speed, the compressor operating frequency can be increased;

[0155] S406. Check whether the noise difference between the noise threshold and the exhaust noise is greater than or equal to the difference threshold; if yes, proceed to S407; otherwise, proceed to S403.

[0156] S407. Control the opening degree of the first air valve to gradually decrease from the noise reduction opening degree;

[0157] The opening degree of the first air valve can be controlled to gradually decrease from the noise reduction opening degree according to a preset rate;

[0158] During the process of reducing the opening degree of the first air valve from the noise reduction opening degree, the fan speed adaptability can be reduced.

[0159] S408. Check if there is anyone in the first room: if yes, proceed to S402; otherwise, proceed to S409.

[0160] S409. After the first room remains unoccupied for the set duration, execute S401.

[0161] If no one is in the first room for the set duration, it means that there is no longer a need for noise reduction in the first room, and the method should be repeated.

[0162] Figure 5 This is a schematic diagram of an air supply control device for a multi-room air supply scenario provided in an embodiment of this application. This air supply control device for a multi-room air supply scenario can be implemented through software, hardware, or a combination of both.

[0163] Multiple rooms are supplied with cooling / heating by one air conditioning compressor, and multiple rooms are supplied with air by one fan. The fan supplies air to each room through air supply ducts. Each room is equipped with an air outlet at the connection point with the air supply duct. Each air supply duct is equipped with an independent air valve. The first room has noise reduction requirements, while the second room does not.

[0164] Combination Figure 5 As shown, the air supply control device 50 for a multi-room air supply scenario includes: a first control module 51, a second control module 52, a first locking module 53, and a third control module 54.

[0165] The first control module 51 is used to maintain the fan speed constant and increase the opening of the first air valve from the first opening to the noise reduction opening, so that the air outlet noise of the first air outlet of the first room is less than the noise threshold.

[0166] The second control module 52 is used to increase the operating frequency of the compressor according to the cooling / heating flow from the second air outlet to the second room, so as to keep the cooling / heating flow to the second room stable after increasing the opening of the first air valve.

[0167] The first locking module 53 is used to lock the correspondence between the total opening degree of the air valves in all rooms and the fan speed;

[0168] The third control module 54 is used to control the opening of the first air valve to gradually decrease from the noise reduction opening, so that the opening of the first air valve approaches the target opening under the premise that the air noise at the first air outlet is less than or equal to the noise threshold.

[0169] The target opening degree ensures that the flow rate of cold / heat from the first air outlet to the first room is consistent with the flow rate of cold / heat from the first air valve to the first room when the first air valve is at its first opening degree.

[0170] Based on the analysis of the aforementioned air supply control method for multi-room air supply scenarios, this method can also reduce the adverse effects on the temperature control process of rooms without noise reduction requirements, enabling rooms with noise reduction requirements to effectively reduce noise, with a low reduction in fan speed and minimal energy waste.

[0171] Optionally, the first control module 51 includes a first lifting unit or a second lifting unit.

[0172] The first lifting unit is used to directly switch the opening degree of the first air valve from the first opening degree to the noise reduction opening degree;

[0173] The second lifting unit is used to gradually increase the opening degree of the first air valve from the first opening degree to the noise reduction opening degree.

[0174] Optionally, the air outlet noise of the first room is less than the noise threshold, including: the air outlet noise of the first room is less than the noise threshold, and the noise difference between the noise threshold and the air outlet noise is greater than or equal to the difference threshold.

[0175] The second control unit 52 includes an acquisition unit, a first determination unit, a second determination unit, and a third enhancement unit.

[0176] The unit is used to obtain the second historical air volume and the second historical air temperature of the second air outlet of the second room at the moment when the opening of the first air valve changes.

[0177] The first determining unit is used to determine the second target cold / heat flow rate to the second room based on the second historical air volume and the second historical air temperature.

[0178] The second determining unit is used to determine the second target air outlet temperature of the second room based on the second actual air volume of the second air outlet and the second target cold / heat flow rate during the process of increasing the opening of the first air valve.

[0179] The third enhancement unit is used to increase the operating frequency of the compressor based on the second target outlet air temperature.

[0180] Optionally, the target opening degree is determined by: obtaining the first historical air volume and the first historical air temperature of the first air outlet at the moment when the opening degree of the first air valve changes; determining the first target cooling / heating flow rate based on the first historical air volume and the first historical air temperature; obtaining the first expected air temperature positively correlated with the real-time operating frequency, or obtaining the first real-time air temperature of the first air outlet; determining the target opening degree based on the first target cooling / heating flow rate and the first expected air temperature, or determining the target opening degree based on the first target cooling / heating flow rate and the first real-time air temperature.

[0181] Optionally, after increasing the opening of the first air valve from the first opening to the noise reduction opening, the correspondence between the total opening of the air valve and the fan speed changes from the first correspondence to the second correspondence; wherein, when the fan speed is constant, the total opening of the air valve corresponding to the fan speed in the first correspondence is less than the total opening of the air valve corresponding to the fan speed in the second correspondence.

[0182] Optionally, the first locking module 53 is specifically used to adaptively adjust the fan speed according to the second correspondence when adjusting the opening of the air valve in subsequent steps.

[0183] Optionally, the air supply control device 50 for multi-room air supply scenarios also includes a second locking module and a fourth control module.

[0184] The second locking module is used to lock the relationship between the total opening of the air valve and the fan speed when the opening of the first air valve reaches the maximum opening and the air noise is greater than or equal to the noise threshold.

[0185] The fourth control module is used to adjust the opening degree of the first air valve from the maximum opening degree back to the first opening degree, and to call and execute the first control module 51.

[0186] Optionally, the first opening degree is positively correlated with the first temperature difference between the indoor temperature of the first room and the set temperature.

[0187] In some embodiments, the air supply control device for a multi-room air supply scenario includes a processor and a memory storing program instructions. The processor is configured to execute the air supply control method for a multi-room air supply scenario provided in the foregoing embodiments when executing the program instructions.

[0188] Figure 6 This is a schematic diagram of an air supply control device for a multi-room air supply scenario provided in an embodiment of this application. (Combined with...) Figure 6 As shown, the air supply control device 60 for a multi-room air supply scenario includes:

[0189] The processor 61 and memory 62 may also include a communication interface 63 and a bus 64. The processor 61, communication interface 63, and memory 62 can communicate with each other via the bus 64. The communication interface 63 can be used for information transmission. The processor 61 can call logical instructions in the memory 62 to execute the air supply control method for the multi-room air supply scenario provided in the foregoing embodiments.

[0190] Furthermore, the logical instructions in the aforementioned memory 62 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0191] 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 this application. The processor 61 executes functional applications and data processing by running the software programs, instructions, and modules stored in the memory 62, thereby implementing the methods in the above-described method embodiments.

[0192] The memory 62 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 62 may include high-speed random access memory and may also include non-volatile memory.

[0193] Figure 7 This is a schematic diagram of an intelligent air conditioner provided in an embodiment of this application.

[0194] Combination Figure 7 As shown, the intelligent air conditioner 70 includes: an air conditioner body 71, and the aforementioned air supply control device 50 (60) for multi-room air supply scenarios. The air supply control device 50 (60) for multi-room air supply scenarios is installed on the air conditioner body 71. The installation relationship described herein is not limited to placement inside the air conditioner body 71, but also includes installation and connection with other components of the intelligent air conditioner 70, including but not limited to physical connection, electrical connection, or signal transmission connection. Those skilled in the art will understand that the air supply control device 50 (60) for multi-room air supply scenarios can be adapted to any feasible air conditioner body 71, thereby realizing other feasible embodiments.

[0195] This application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured as follows:

[0196] While keeping the fan speed constant, increase the opening of the first air valve from the first opening to the noise reduction opening, so that the air outlet noise of the first air outlet of the first room is less than the noise threshold.

[0197] The compressor's operating frequency is increased based on the cooling / heating flow rate from the second air outlet to the second room, so that the cooling / heating flow rate to the second room remains stable after the opening of the first air valve is increased.

[0198] Lock the relationship between the total opening degree of all air valves in all rooms and the fan speed;

[0199] The opening of the first air valve is gradually reduced from the noise reduction opening. Under the premise that the air noise at the first air outlet is less than or equal to the noise threshold, the opening of the first air valve is brought closer to the target opening.

[0200] The target opening degree ensures that the cold / heat flow rate from the first air outlet to the first room is consistent with the cold / heat flow rate from the first air valve to the first room when the first air valve is at its first opening degree.

[0201] The system consists of multiple rooms supplied with cooling / heating by a single air conditioning compressor, multiple rooms supplied with air by a single fan, and the fan delivers air to each room through air supply ducts. Each room is equipped with an air outlet at the connection point with the air supply duct, and each air supply duct is equipped with an independent air valve. The first room has noise reduction requirements, while the second room does not.

[0202] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium.

[0203] The technical solutions of this application embodiment can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods in this application embodiment. The aforementioned storage medium can be a non-transitory storage medium, including: USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0204] The foregoing description and accompanying drawings fully illustrate embodiments of this application to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Unless otherwise specified, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes that element. In this document, each embodiment may focus on describing the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, then the relevant parts can be referred to the description of the method section.

[0205] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0206] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. 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 electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0207] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling air supply in a multi-room air supply scenario, characterized in that, Multiple rooms are supplied with cooling / heating capacity by a single air conditioning compressor, and air is supplied to the rooms by a single fan. The fan delivers air to each room through air ducts, and each room has an air outlet at the connection point with the air duct. Each air duct is equipped with an independent air valve. The first room requires noise reduction, while the second room does not. The air supply control method includes: While keeping the fan speed constant, increase the opening of the first air valve from the first opening to the noise reduction opening, so that the air outlet noise of the first air outlet of the first room is less than the noise threshold. The compressor's operating frequency is increased based on the cooling / heating flow rate from the second air outlet to the second room, so that the cooling / heating flow rate to the second room remains stable after the opening of the first air valve is increased. Lock the relationship between the total opening degree of all air valves in all rooms and the fan speed; The opening of the first air valve is gradually reduced from the noise reduction opening. Under the premise that the air noise at the first air outlet is less than or equal to the noise threshold, the opening of the first air valve is brought closer to the target opening. The target opening degree ensures that the cold / heat flow rate from the first air outlet to the first room is consistent with the cold / heat flow rate from the first air valve to the first room when the first air valve is at its first opening degree. The relationship between the total opening degree of all air valves in all rooms and the fan speed includes: After increasing the opening of the first air valve from the first opening to the noise reduction opening, the correspondence between the total opening of the air valve and the fan speed changes from the first correspondence to the second correspondence. When the fan speed is constant, the total opening of the air valve corresponding to the fan speed in the first correspondence is less than the total opening of the air valve corresponding to the fan speed in the second correspondence. When adjusting the opening of the damper in subsequent steps, the fan speed is adaptively adjusted according to the second correspondence.

2. The air supply control method according to claim 1, characterized in that, Increasing the opening of the first air valve from the first opening to the noise reduction opening includes: directly switching the opening of the first air valve from the first opening to the noise reduction opening, or gradually increasing the opening of the first air valve from the first opening to the noise reduction opening. The noise level of the air outlet in the first room is less than the noise threshold, including: the noise level of the air outlet in the first room is less than the noise threshold, and the noise difference between the noise threshold and the air outlet noise is greater than or equal to the difference threshold.

3. The air supply control method according to claim 1, characterized in that, The compressor's operating frequency is increased based on the cooling / heating flow rate from the second air outlet to the second room, including: At the moment when the opening of the first air valve changes, the second historical air volume and the second historical air temperature of the second air outlet of the second room are obtained. The second target cooling / heating flow rate to the second room is determined based on the second historical air volume and the second historical air temperature. During the process of increasing the opening of the first air valve, the second target air outlet temperature of the second room is determined based on the second actual air volume of the second air outlet and the second target cold / heat flow rate. Increase the compressor's operating frequency based on the second target outlet air temperature.

4. The air supply control method according to claim 1, characterized in that, The target opening is determined as follows: Obtain the first historical air volume and the first historical air temperature of the first air outlet at the moment when the opening degree of the first air valve changes; The first target cooling / heating flow rate is determined based on the first historical air volume and the first historical air temperature. Obtain the first expected air outlet temperature that is positively correlated with the real-time operating frequency, or obtain the first real-time air outlet temperature. The target opening degree is determined based on the first target cooling / heating flow rate and the first expected outlet air temperature, or the target opening degree is determined based on the first target cooling / heating flow rate and the first real-time outlet air temperature.

5. The air supply control method according to claim 1, characterized in that, There is a positive correlation between the total opening degree of the air valves in all rooms and the fan speed. This positive correlation is specifically set through the actual air supply duct layout model and the actual fan model.

6. The air supply control method according to any one of claims 1 to 5, characterized in that, Also includes: When the first air valve reaches its maximum opening and the exhaust noise is greater than or equal to the noise threshold, lock the relationship between the total opening of the air valve and the fan speed. Adjust the opening of the first air valve from the maximum opening back to the first opening, keep the fan speed unchanged, increase the opening of the first air valve from the first opening to the noise reduction opening, and increase the operating frequency of the compressor according to the cooling / heating flow from the second air outlet to the second room.

7. The air supply control method according to any one of claims 1 to 5, characterized in that, The first opening degree is positively correlated with the first temperature difference between the indoor temperature of the first room and the set temperature.

8. An air supply control device for a multi-room air supply scenario, characterized in that, Multiple rooms are supplied with cooling / heating by a single air conditioning compressor, and air is supplied to the rooms by a single fan. The fan delivers air to each room through air ducts, and each room has an air outlet at the connection point with the air duct. Each air duct is equipped with an independent air valve. The first room requires noise reduction, while the second room does not. The air supply control device includes: The first control module is used to maintain the fan speed constant and increase the opening of the first air valve from the first opening to the noise reduction opening, so that the air outlet noise of the first air outlet of the first room is less than the noise threshold. The second control module is used to increase the operating frequency of the compressor based on the cooling / heating flow from the second air outlet to the second room, so as to maintain a stable cooling / heating flow to the second room after increasing the opening of the first air valve. The first locking module is used to lock the correspondence between the total opening degree of the air valves in all rooms and the fan speed; The third control module is used to control the opening of the first air valve to gradually decrease from the noise reduction opening, so that the opening of the first air valve approaches the target opening under the premise that the air noise at the first air outlet is less than or equal to the noise threshold. The target opening degree ensures that the cold / heat flow rate from the first air outlet to the first room is consistent with the cold / heat flow rate from the first air valve to the first room when the first air valve is at its first opening degree. The relationship between the total opening degree of all air valves in all rooms and the fan speed includes: After increasing the opening of the first air valve from the first opening to the noise reduction opening, the correspondence between the total opening of the air valve and the fan speed changes from the first correspondence to the second correspondence. When the fan speed is constant, the total opening of the air valve corresponding to the fan speed in the first correspondence is less than the total opening of the air valve corresponding to the fan speed in the second correspondence. When adjusting the opening of the damper in subsequent steps, the fan speed is adaptively adjusted according to the second correspondence.

9. An air supply control device for a multi-room air supply scenario, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the air supply control method for a multi-room air supply scenario as described in any one of claims 1 to 7 when executing the program instructions.

10. A smart air conditioner, characterized in that, include: Air conditioner unit; The air supply control device for a multi-room air supply scenario as described in claim 8 or 9 is installed on the air conditioner body.

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