Multi-split air conditioning system, control method and device thereof, air conditioner and storage medium

Abstract

The invention relates to a multi-split air conditioning system and a control method and device thereof, an air conditioner and a storage medium, the multi-split air conditioning system comprises at least one first outdoor unit and at least one second outdoor unit, and the directions of air outlets corresponding to the first outdoor unit and the second outdoor unit are different. The method comprises the steps that the type and the unit cooling capacity of each outdoor unit connected currently are obtained; the types comprise a first type and a second type, the first type represents that the corresponding outdoor unit is a first outdoor unit, and the second type represents that the corresponding outdoor unit is a second outdoor unit; based on the type of each outdoor unit, the priority of each outdoor unit is determined; the current required cooling capacity of the indoor unit is obtained; and at least one outdoor unit is controlled to operate according to the required cooling capacity and the unit cooling capacity and priority of each outdoor unit. Therefore, the matching degree of the output cooling capacity of the outdoor unit and the cooling capacity requirement of the indoor unit can be improved, the stability of room temperature is improved, and user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of smart home devices, and particularly to a multi-connected air conditioner system, a control method, a device, an air conditioner and a storage medium thereof. Background Art

[0002] In the field of light commercial air conditioners, multi-connected air conditioners are highly favored. Among them, the outdoor unit modular system of the multi-connected air conditioner can include one or more outdoor units, which can simultaneously connect and centrally control multiple indoor units. The indoor units have various forms, which is convenient for engineering selection, and there is a large allowable elevation difference between the outdoor unit and the indoor unit.

[0003] Currently, the outdoor unit modular system of the multi-connected air conditioner generally consists of multiple single outdoor units with an upward air outlet form. For this kind of outdoor unit with an upward air outlet form, the cooling capacity of the unit is usually large, with a minimum of 8HP and a maximum exceeding 30HP. This limits the minimum output cooling capacity of the product, resulting in an excessive output cooling capacity of the outdoor unit when the indoor unit has a small load demand, a mismatch between the cooling capacity demand of the indoor unit and the output cooling capacity of the outdoor unit, large room temperature fluctuations, and frequent shutdowns, affecting the user experience. Summary of the Invention

[0004] The present application provides a multi-connected air conditioner system, a control method, a device, an air conditioner and a storage medium thereof, so as to solve the technical problems in the prior art that the minimum output cooling capacity of the outdoor unit is limited, resulting in an excessive output cooling capacity of the outdoor unit when the indoor unit has a small load demand, a mismatch between the cooling capacity demand of the indoor unit and the output cooling capacity of the outdoor unit, large room temperature fluctuations, frequent shutdowns, and affecting the user experience.

[0005] In a first aspect, the present application provides a control method for a multi-connected air conditioner system, which is characterized in that it is applied to a multi-connected air conditioner system, the multi-connected air conditioner system includes at least one first outdoor unit and at least one second outdoor unit, the air outlet directions of the first outdoor unit and the second outdoor unit are different, and the method includes: Obtaining the type and unit cooling capacity of each currently connected outdoor unit; the type includes a first type and a second type, the first type indicates that the corresponding outdoor unit is the first outdoor unit, and the second type indicates that the corresponding outdoor unit is the second outdoor unit; Determining the priority of each outdoor unit based on the type of each outdoor unit; Obtaining the current required cooling capacity of the indoor unit; Controlling at least one of the outdoor units to operate according to the required cooling capacity, the unit cooling capacity and the priority of each outdoor unit.

[0006] As an optional implementation manner, the air outlet direction of the first outdoor unit is the horizontal space direction, and the air outlet direction of the second outdoor unit is the vertical space direction; Determining the priority of each of the outdoor units based on the type of each of the outdoor units includes: Determining that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority; the first priority is greater than the second priority.

[0007] As an alternative implementation, determining that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority includes: Determining a first target outdoor unit with the smallest unit cooling capacity according to the unit cooling capacity of each of the outdoor units; When it is determined that the type of the first target outdoor unit is the first type, determining that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority.

[0008] As an alternative implementation, the method further includes: When it is determined that the type of the first target outdoor unit is the second type, determining that the priority of the outdoor unit of the first type is the second priority, and the priority of the outdoor unit of the second type is the first priority.

[0009] As an alternative implementation, the determining the priority of each of the outdoor units based on the type of each of the outdoor units includes: Obtaining the installation environment corresponding to the outdoor unit; Determining the priority of each of the outdoor units according to the installation environment and the type of each of the outdoor units.

[0010] As an alternative implementation, the air outlet direction of the first outdoor unit is a horizontal space direction, and the air outlet direction of the second outdoor unit is a vertical space direction; The determining the priority of each of the outdoor units according to the installation environment and the type of each of the outdoor units includes: According to the installation environment, determining whether there is a first obstacle in the horizontal space of the installation point corresponding to the outdoor unit in the air outlet direction of the first outdoor unit, and whether there is a second obstacle in the vertical space of the installation point corresponding to the outdoor unit in the air outlet direction of the second outdoor unit; When it is determined that there is the first obstacle in the horizontal space and there is no second obstacle in the vertical space, determining that the priority of the outdoor unit of the second type is the first priority, and the priority of the outdoor unit of the first type is the second priority; the first priority is greater than the second priority; When it is determined that there is no first obstacle in the horizontal space and there is a second obstacle in the vertical space, determine that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority.

[0011] As an alternative implementation, the method further includes: When it is determined that there is a first obstacle in the horizontal space and there is a second obstacle in the vertical space, control each outdoor unit to operate for a preset duration; After controlling each outdoor unit to operate for the preset duration, obtain the exhaust pressure corresponding to each outdoor unit; Determine the target type corresponding to the outdoor unit with the minimum exhaust pressure; Determine the priority of the outdoor unit of the target type as the first priority, and determine the priority of the outdoor unit whose type is not the target type as the second priority.

[0012] As an alternative implementation, the priority of the outdoor unit includes a first priority and a second priority, and the first priority is greater than the second priority; The controlling at least one outdoor unit to operate according to the required cooling capacity, the unit cooling capacity of each outdoor unit, and the priority includes: Determine whether there is at least one second target outdoor unit among the outdoor units corresponding to the first priority, whose unit cooling capacity is greater than the required cooling capacity; When it is determined that there is at least one second target outdoor unit, control at least one outdoor unit with the first priority to operate; When it is determined that there is no second target outdoor unit, control multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operating cycles; wherein, the operating cycle of the outdoor unit corresponding to the first priority is greater than the operating cycle of the outdoor unit corresponding to the second priority.

[0013] As an alternative implementation, the controlling at least one outdoor unit with the first priority to operate when it is determined that there is at least one second target outdoor unit includes: Determine whether the second target outdoor unit includes a third target outdoor unit with the minimum unit cooling capacity among the outdoor units corresponding to the first priority; When it is determined that there is a third target outdoor unit among the second target outdoor units, control the third target outdoor unit to operate alone; In the case where it is determined that the third target outdoor unit does not exist in the second target outdoor unit, control the outdoor units corresponding to the first priority to operate in rotation according to their respective corresponding operating cycles, where the operating cycle of the third target outdoor unit is greater than that of other outdoor units.

[0014] As an alternative implementation, during the process of controlling multiple outdoor units with the first priority and the second priority to operate in rotation according to their respective corresponding operating cycles, the method further includes: Obtain the current system pressure; In the case where the system pressure is greater than a preset pressure threshold, control the outdoor units corresponding to the second priority to stop operating.

[0015] As an alternative implementation, in the case where there is no obstacle in the air outlet direction of the outdoor unit corresponding to the first priority, and there is an obstacle in the air outlet direction of the outdoor unit corresponding to the second priority, during the process of controlling multiple outdoor units with the first priority and the second priority to operate in rotation according to their respective corresponding operating cycles, the method further includes: When it is detected that the outdoor unit corresponding to the second priority is operating, turn on the fan module of the outdoor unit corresponding to the first priority.

[0016] As an alternative implementation, the obtaining the type and unit cooling capacity of each currently connected outdoor unit includes: Obtain the target unique identifier of each outdoor unit; According to the pre-set correspondence relationship between the unique identifier, type, and unit cooling capacity of the outdoor unit, determine the type and unit cooling capacity corresponding to the target unique identifier.

[0017] In a second aspect, the present application provides a control device for a multi-connected air-conditioning system, which is applied to a multi-connected air-conditioning system. The multi-connected air-conditioning system includes at least one first outdoor unit and at least one second outdoor unit, and the air outlet directions of the first outdoor unit and the second outdoor unit are different. The device includes: A first obtaining module, configured to obtain the type and unit cooling capacity of each currently connected outdoor unit; the type includes a first type and a second type, and the first type indicates that the corresponding outdoor unit is the first outdoor unit, and the second type indicates that the corresponding outdoor unit is the second outdoor unit; A determining module, configured to determine the priority of each outdoor unit based on the type of each outdoor unit; A second obtaining module, configured to obtain the current required cooling capacity of the indoor unit; A control module, configured to control at least one of the outdoor units to operate according to the required cooling capacity, the unit cooling capacity of each outdoor unit, and the priority.

[0018] In a third aspect, the present application provides an air conditioner, which is characterized by including: an indoor unit, at least one first outdoor unit, at least one second outdoor unit, a processor, a communication interface, a memory, and a communication bus; Wherein, the air outlet directions of the first outdoor unit and the second outdoor unit are different; the processor, the communication interface, and the memory communicate with each other through the communication bus; the memory is used to store a computer program; the processor is configured to implement the control method of the multi-connected air conditioner system according to any one of the first aspects when executing the computer program.

[0019] In a fourth aspect, the present application provides a multi-connected air conditioner system, and the multi-connected air conditioner system includes the air conditioner according to the third aspect.

[0020] In a fifth aspect, the present application provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the control method of the multi-connected air conditioner system according to any one of the first aspects.

[0021] The technical solution provided by the embodiments of the present application is to obtain the type and unit cooling capacity of each currently connected outdoor unit. The above types include a first type and a second type. The first type indicates that the corresponding outdoor unit is a first outdoor unit, and the second type indicates that the corresponding outdoor unit is a second outdoor unit. Based on the type of each outdoor unit, determine the priority of each outdoor unit, obtain the current required cooling capacity of the indoor unit, and control at least one outdoor unit to operate according to the required cooling capacity, the unit cooling capacity of each outdoor unit, and the priority. This technical solution combines outdoor units with different air outlet directions. Since outdoor units with different air outlet directions have different upper and lower limits of the unit cooling capacity that can be achieved, the combined output cooling capacity range of the outdoor units can be increased after combination, avoiding the limitation of the minimum output cooling capacity. Based on this, when controlling the above different types of outdoor units, the priority of each outdoor unit can be set according to the type and unit cooling capacity of the outdoor unit, and the optimal strategy can be selected with reference to the required cooling capacity of the indoor unit to control the operation of the outdoor unit, which can ensure that the cooling capacity output by the outdoor unit matches the cooling capacity requirement of the indoor unit, realizing the improvement of the matching degree between the cooling capacity output by the outdoor unit and the cooling capacity requirement of the indoor unit, improving the stability of the room temperature, and enhancing the user experience. Description of the Drawings

[0022] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present invention and used together with the description to explain the principles of the present invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.

[0025] Figure 1 It is a schematic structural diagram of a multi-connected air-conditioning system provided by an embodiment of the present application; Figure 2 It is a schematic application structure diagram of a same-type outdoor unit provided by an embodiment of the present application; Figure 3 It is a schematic application structure diagram of another same-type outdoor unit provided by an embodiment of the present application; Figure 4 It is a flowchart of an embodiment of a control method for a multi-connected air-conditioning system provided by an embodiment of the present application; Figure 5 It is a flowchart of an embodiment of another control method for a multi-connected air-conditioning system provided by an embodiment of the present application; Figure 6 It is a flowchart of an embodiment of yet another control method for a multi-connected air-conditioning system provided by an embodiment of the present application; Figure 7 It is a flowchart of an embodiment of still another control method for a multi-connected air-conditioning system provided by an embodiment of the present application; Figure 8 It is a block diagram of an embodiment of a control device for a multi-connected air-conditioning system provided by an embodiment of the present application; Figure 9 It is a schematic structural diagram of an air conditioner provided by an embodiment of the present application; Figure 10 It is a schematic structural diagram of another multi-connected air-conditioning system provided by an embodiment of the present application. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] In order to solve the technical problems in the prior art that the minimum output cooling capacity of the outdoor unit is limited, resulting in excessive output cooling capacity of the outdoor unit when there is a small load demand in the indoor unit, the cooling capacity demand of the indoor unit does not match the output cooling capacity of the outdoor unit, and the room temperature fluctuates greatly and stops frequently, affecting the user experience, the present application provides a multi-connected air-conditioning system and its control method, device, air conditioner and storage medium, which can combine outdoor units with different air outlet directions. Since outdoor units with different air outlet directions have different upper and lower limits of the unit cooling capacity that can be achieved, combining the two can increase the output cooling capacity range of the outdoor unit and avoid the limitation of the minimum output cooling capacity. Based on this, when controlling the above different types of outdoor units, the priority of each outdoor unit can be set according to the type of the outdoor unit and the unit cooling capacity, and the optimal strategy can be selected with reference to the required cooling capacity of the indoor unit to control the operation of the outdoor unit, which can ensure that the output cooling capacity of the outdoor unit matches the cooling capacity demand of the indoor unit, achieving an improvement in the matching degree between the output cooling capacity of the outdoor unit and the cooling capacity demand of the indoor unit, improving the stability of the room temperature, and enhancing the user experience.

[0029] To facilitate understanding of the control method of the multi-connected air-conditioning system provided by the present application, the multi-connected air-conditioning system involved in the present application will be exemplified below.

[0030] See Figure 1 , which is a schematic structural diagram of a multi-connected air-conditioning system provided by an embodiment of the present application. As Figure 1 shown, the multi-connected air-conditioning system 10 may include: a plurality of outdoor units 11 and a plurality of indoor units 12.

[0031] Among them, the plurality of outdoor units 11 may include two first outdoor units 111 and two second outdoor units 112.

[0032] The plurality of indoor units 12 may include an indoor unit 121, an indoor unit 122, and an indoor unit 123. The installation positions of the indoor unit 121, the indoor unit 122, and the indoor unit 123 may be different, and the types and numbers of indoor units are not limited in the embodiments of the present application.

[0033] Furthermore, the outdoor units included in the plurality of outdoor units 11 may include two different types of outdoor units. Figure 1In the outdoor unit shown, the two first outdoor units 111 are of the same type, the two second outdoor units 112 are of the same type, and the first outdoor unit 111 and the second outdoor unit 112 are of different types. In the embodiments of the present application, the number of outdoor units of each type is not limited. Figure 1 Here, only the example of two outdoor units of each type is used for illustration. In the embodiments of the present application, the number of types of outdoor units is also not limited. It can be two different types of outdoor units, or three or four different types of outdoor units. Figure 1 Here, only two types of outdoor units are used for example.

[0034] In the embodiments of the present application, the classification of the types of outdoor units can be carried out according to the air outlet direction of the outdoor units. For example, Figure 1 the second outdoor unit 112 shown can be an outdoor unit with an upward air outlet direction, and the first outdoor unit 111 can be an outdoor unit with a side air outlet direction.

[0035] Optionally, on the basis that the air outlet directions of the above two outdoor units 111 are the same, their further sizes and types can be the same or different, and the embodiments of the present application do not limit this.

[0036] In actual application, outdoor units with an upward air outlet direction can also be combined and applied. For example, see Figure 2 , which is a schematic diagram of the application structure of the same type of outdoor unit provided by the embodiments of the present application. As Figure 2 shown, this structure may include: four second outdoor units 112, and multiple indoor units 12 (including indoor unit 121, indoor unit 122, and indoor unit 123).

[0037] Among them, the above four second outdoor units 112 are all outdoor units with an upward air outlet.

[0038] Based on Figure 2 the structure shown, since multiple outdoor units are all outdoor units with an upward air outlet, and outdoor units with an upward air outlet generally have a relatively large unit cooling capacity (generally at least 8HP and at most 30HP), high cost, and a relatively large floor area of the product. Therefore, this application method is likely to cause problems such as the output cooling capacity of the outdoor unit being greater than the required cooling capacity of the indoor unit, high cost, and large floor area.

[0039] Optionally, on the basis that the air outlet directions of the above two first outdoor units 111 are the same, their further sizes and types can be the same or different, and the embodiments of the present application do not limit this.

[0040] In actual application, outdoor units with a side air outlet direction can also be combined and applied. For example, see Figure 3 , which is another schematic diagram of the application structure of the same type of outdoor unit provided by the embodiments of the present application. AsFigure 3 As shown in the figure, this structure may include: four first outdoor units 111 and multiple indoor units 12 (including indoor unit 121, indoor unit 122, and indoor unit 123).

[0041] Among them, the above four first outdoor units 111 are all outdoor units with the air outlet facing sideways (for example, the air outlet faces the front of the unit).

[0042] Based on Figure 3 the shown structure, since multiple outdoor units are all outdoor units with the air outlet facing sideways, and outdoor units with the air outlet facing sideways generally have characteristics such as a compact structure and uniform heat exchange of the heat exchanger. Generally speaking, the raw material cost of the same cooling capacity can be reduced by 10 - 20% compared with the upper-air multi-connected units, and the product design is relatively flexible, and the product size can be made very small, but the cooling capacity of the unit is small, generally the minimum can be 2HP and the maximum can be 24HP. Therefore, Figure 3 the shown application method is likely to cause the problem that the maximum cooling capacity output by the outdoor unit is limited.

[0043] In response to this, the embodiment of the present application provides Figure 1 the shown system structure, which can improve the matching degree between the cooling capacity output by the outdoor unit and the cooling capacity demand of the indoor unit, improve the stability of the room temperature, and enhance the user experience by combining different types of outdoor units and applying the control method of the multi-connected air-conditioning system provided by the present application.

[0044] Refer to Figure 4 , which is a flowchart of an embodiment of a control method for a multi-connected air-conditioning system provided by an embodiment of the present application. As an embodiment, Figure 4 the shown process can be applied to a multi-connected air-conditioning system, which may include at least one first outdoor unit and at least one second outdoor unit. The air outlet directions of the above first outdoor unit and second outdoor unit are different. For example, Figure 1 the first outdoor unit 111 and the second outdoor unit 112 shown in the figure. As shown in Figure 4 the figure, this process may include the following steps: Step 401: Obtain the type and unit cooling capacity of each currently connected outdoor unit. The above types include the first type and the second type. The first type indicates that the corresponding outdoor unit is a first outdoor unit, and the second type indicates that the corresponding outdoor unit is a second outdoor unit.

[0045] The above type refers to the type corresponding to the air outlet direction of the outdoor unit. In the embodiment of the present application, when the air outlet directions of two outdoor units are different, it can indicate that the two outdoor units belong to different types.

[0046] The cooling capacity of the above-mentioned unit refers to the heat absorbed by the outdoor unit from the indoor environment and transferred outdoors under specific working conditions, with the unit of watt (W) or kilowatt (kW). The cooling capacity of this unit reflects the magnitude of the air conditioner's refrigeration ability. The larger the value, the greater the refrigeration capacity per unit time and the stronger the refrigeration effect. For example, an outdoor unit with a cooling capacity of 5 kW can transfer 5000 joules of heat from the indoor environment per unit time.

[0047] In the embodiments of the present application, since the multi-connected air conditioner system may include different types of outdoor units, before controlling the outdoor units, the execution subject of the embodiments of the present application may first obtain the type and cooling capacity of each currently connected outdoor unit.

[0048] Among them, since the multi-connected system may include a first outdoor unit and a second outdoor unit, the types of the above-mentioned outdoor units may include a first type and a second type. The first type can be used to represent that the outdoor unit is a first outdoor unit, and the second type can be used to represent that the outdoor unit is a second outdoor unit.

[0049] As an optional implementation manner, when installing the outdoor units, technicians can pre-set a corresponding unique identifier for each outdoor unit. Based on this, when the execution subject of the embodiments of the present application obtains the type and cooling capacity of each outdoor unit, it can first obtain the target unique identifier of each outdoor unit, and pre-store the corresponding relationship between the unique identifier, type, and cooling capacity of each outdoor unit installed.

[0050] After that, according to the pre-set corresponding relationship between the unique identifier, type, and cooling capacity of the outdoor unit, the type and cooling capacity corresponding to the target unique identifier can be determined.

[0051] As an optional implementation manner, the above-mentioned target unique identifier can be used as a keyword to search for the above-mentioned corresponding relationship, obtain the target corresponding relationship containing this keyword, and determine the type and cooling capacity contained in the target corresponding relationship as the type and cooling capacity corresponding to the target unique identifier.

[0052] In addition, the multi-connected system may also include other types of third outdoor units, then the above-mentioned types may also include a third type. For example, the air outlet direction of the first outdoor unit is upward compared to the body of the unit, the air outlet direction of the second outdoor unit is forward compared to the body of the unit, then the air outlet direction of the third outdoor unit may be obliquely forward (the middle position between upward and forward) compared to the body of the unit.

[0053] Step 402: Based on the type of each outdoor unit, determine the priority of each outdoor unit.

[0054] The above-mentioned priority refers to the priority level of each outdoor unit when controlling the operation of each outdoor unit.

[0055] In the embodiments of the present application, since different types of outdoor units have different corresponding cooling capacities of the unit and different operating efficiencies, in order to save energy as much as possible and improve efficiency, the execution entity of the embodiments of the present application can determine the corresponding priority for each outdoor unit according to the type of each outdoor unit.

[0056] As for how to determine the priority of each outdoor unit based on the type of each outdoor unit, it will be described separately in the following through Figure 5 and Figure 6 The shown processes, and will not be elaborated here for the time being.

[0057] Step 403: Obtain the current required cooling capacity of the indoor unit.

[0058] Step 404: Control at least one outdoor unit to operate according to the above required cooling capacity, the unit cooling capacity and the priority of each outdoor unit.

[0059] The following is a unified description of Step 403 and Step 404: The above required cooling capacity refers to the cooling capacity required for the indoor unit in the multi-connected air-conditioning system to reach the target temperature set by the user.

[0060] In the embodiments of the present application, in order to make the operation of the outdoor unit more matched with the requirements of the indoor unit, the execution entity of the embodiments of the present application can obtain the current required cooling capacity of the indoor unit. Then, at least one outdoor unit can be controlled to operate according to the above required cooling capacity, the unit cooling capacity and the priority of each outdoor unit. In this way, while making the total unit cooling capacity of the outdoor unit operation more matched with the required cooling capacity of the indoor unit, the energy for the outdoor unit operation can be saved and the efficiency can be improved.

[0061] As an optional implementation manner, when the execution entity of the embodiments of the present application obtains the current required cooling capacity of the indoor unit, it can obtain the temperature difference between the current indoor temperature and the set target temperature, and input the temperature difference into a preset cooling capacity calculation formula to obtain the current required cooling capacity of the indoor unit.

[0062] As for how to control at least one outdoor unit to operate according to the required cooling capacity, the unit cooling capacity and the priority of each outdoor unit, it will be described in the following through Figure 7 The shown processes, and will not be elaborated here for the time being.

[0063] The technical solution provided by the embodiment of the present application obtains the type and unit cooling capacity of each currently connected outdoor unit. The above types include a first type and a second type. The first type indicates that the corresponding outdoor unit is a first outdoor unit, and the second type indicates that the corresponding outdoor unit is a second outdoor unit. Based on the type of each outdoor unit, the priority of each outdoor unit is determined, the current required cooling capacity of the indoor unit is obtained, and at least one outdoor unit is controlled to operate according to the required cooling capacity, the unit cooling capacity, and the priority of each outdoor unit. In this technical solution, by combining outdoor units with different air outlet directions, since the upper and lower limits of the unit cooling capacity that can be achieved by outdoor units with different air outlet directions are different, the output cooling capacity range of the outdoor unit can be increased after combining the two, avoiding the limitation of the minimum output cooling capacity. Based on this, when controlling the above different types of outdoor units, the priority of each type of outdoor unit can be set according to the type and unit cooling capacity of the outdoor unit, and the optimal strategy can be selected with reference to the required cooling capacity of the indoor unit to control the operation of the outdoor unit, which can ensure that the cooling capacity output by the outdoor unit matches the cooling capacity requirement of the indoor unit, achieving the improvement of the matching degree between the cooling capacity output by the outdoor unit and the cooling capacity requirement of the indoor unit, improving the stability of the room temperature, and enhancing the user experience.

[0064] See Figure 5 , which is a flowchart of an embodiment of another control method for a multi-connected air conditioner system provided by the embodiment of the present application. Figure 5 The process shown in Figure 4 On the basis of the process shown, it describes how to determine the priority of each outdoor unit specifically based on the type of each outdoor unit when the air outlet direction of the first outdoor unit is the horizontal space direction and the air outlet direction of the second outdoor unit is the vertical direction. As Figure 5 shown, the process may include the following steps: Step 501: When the air outlet direction of the first outdoor unit is the horizontal space direction and the air outlet direction of the second outdoor unit is the vertical space direction, determine that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority; the first priority is greater than the second priority.

[0065] The above horizontal space direction refers to the space direction in the horizontal direction relative to the body of the outdoor unit, which may include but is not limited to: in front of the body, to the left of the body, to the right of the body, and behind the body, etc.

[0066] The above vertical space direction refers to the space direction in the vertical direction relative to the body of the outdoor unit, which may include but is not limited to: above the body and below the body, etc.

[0067] In the embodiment of the present application, through Figure 1According to the description of the structure shown, the minimum unit cooling capacity of the first outdoor unit with the air outlet direction in the horizontal space direction is relatively low. Therefore, in order to meet the required cooling capacity of the indoor unit as much as possible, the execution subject of the embodiment of the present application can determine the priority of the outdoor unit of the first type as the first priority, and determine the priority of the outdoor unit of the second type as the second priority, that is, set the priority of the first outdoor unit as the first priority and determine the priority of the second outdoor unit as the second priority, where the first priority is greater than the second priority.

[0068] Furthermore, since there may be a situation where the unit cooling capacity of the second outdoor unit is less than that of the first outdoor unit, when the execution subject of the embodiment of the present application determines the priority of each outdoor unit, it can determine the outdoor unit with the smallest unit cooling capacity according to the unit cooling capacity of each outdoor unit (for the convenience of distinction, the outdoor unit with the smallest unit cooling capacity is hereinafter referred to as the "first target outdoor unit").

[0069] After that, it can be determined whether the type of the first target outdoor unit is the first type.

[0070] Optionally, when it is determined that the type of the first target outdoor unit is the first type, the priority of the outdoor unit of the first type can be determined as the first priority, and the priority of the outdoor unit of the second type can be determined as the second priority.

[0071] In addition, when it is determined that the type of the first target outdoor unit is the second type, the priority of the outdoor unit of the second type can be determined as the second priority, and the priority of the outdoor unit of the second type can be determined as the first priority.

[0072] The technical solution provided by the embodiment of the present application determines that the priority of the outdoor unit of the first type is the first priority and the priority of the outdoor unit of the second type is the second priority when the air outlet direction of the first outdoor unit is in the horizontal space direction and the air outlet direction of the second outdoor unit is in the vertical space direction; the above first priority is greater than the second priority. This technical solution determines the outdoor unit with the air outlet direction in the horizontal space direction as the higher priority according to the type of the outdoor unit itself. Since the unit cooling capacity corresponding to the outdoor unit with the air outlet direction in the horizontal space direction can reach a smaller unit cooling capacity, the matching degree between the total unit cooling capacity of the outdoor unit operation and the required cooling capacity of the indoor unit can be improved through this outdoor unit, realizing the determination of the priority of each outdoor unit according to the type of the outdoor unit, thereby improving the matching degree between the cooling capacity output by the outdoor unit and the cooling capacity requirement of the indoor unit.

[0073] See Figure 6 , which is the flowchart of the embodiment of another control method for a multi-connected air-conditioning system provided by the embodiment of the present application. Figure 6 The process shown is in Figure 4Based on the described process, it is described how to determine the priority of each outdoor unit specifically according to the installation environment of the outdoor unit and the type of the outdoor unit. For example, Figure 6 As shown, this process may include the following steps: Step 601: Obtain the installation environment corresponding to the outdoor unit.

[0074] Step 602: Determine the priority of each outdoor unit according to the above installation environment and the type of each outdoor unit.

[0075] The following is a unified description of Step 601 and Step 602: The above installation environment refers to the environment corresponding to the installation location of the outdoor unit, which may include but is not limited to: the installation location of the outdoor unit, obstacles around the installation location of the outdoor unit, etc. The above obstacles may be walls, wooden boards, etc., and the embodiments of the present application do not limit this.

[0076] In the embodiments of the present application, since factors such as the heat exchange efficiency of the outdoor unit during operation are related to the installation environment, in order to improve the operation efficiency of the outdoor unit, the execution entity of the embodiments of the present application may obtain the installation environment corresponding to the outdoor unit, and determine the priority of each outdoor unit according to the installation environment and the type of each outdoor unit.

[0077] As an optional implementation manner, when technicians install the outdoor unit, they may set the current installation environment of the outdoor unit, such as setting the obstacle information around the outdoor unit. Based on this, the execution entity of the embodiments of the present application may directly obtain the pre-set installation information corresponding to the outdoor unit.

[0078] As another optional implementation manner, the execution entity of the embodiments of the present application may collect an image corresponding to the installation location of the outdoor unit through a pre-set image acquisition module, and perform recognition on the image to obtain the installation environment corresponding to the outdoor unit.

[0079] As an optional implementation manner, the air outlet direction of the first outdoor unit may be the horizontal space direction, and the air outlet direction of the second outdoor unit may be the vertical space direction. Based on this, when the execution entity of the embodiments of the present application determines the priority of each outdoor unit according to the installation environment and the type of each outdoor unit, it may determine whether there is a first obstacle in the horizontal space of the installation point corresponding to the outdoor unit and whether there is a second obstacle in the vertical space corresponding to the outdoor unit according to the above installation environment, in the air outlet direction of the first outdoor unit and the air outlet direction of the second outdoor unit respectively. Among them, the above first obstacle and second obstacle may be the same obstacle or different obstacles, and the embodiments of the present application do not limit this. The above first obstacle and second obstacle may be obstacles such as walls and wooden boards.

[0080] Optionally, when it is determined that there is a first obstacle in the horizontal space and there is no second obstacle in the vertical space, it indicates that the exhaust air of the first outdoor unit is restricted, which is likely to cause heat accumulation and poor heat exchange effect. Therefore, the priority of the outdoor unit of the second type can be determined as the first priority, and the priority of the outdoor unit of the first type can be determined as the second priority. That is, the priority of the first outdoor unit is determined as the second priority, and the priority of the second outdoor unit is determined as the first priority.

[0081] Optionally, when it is determined that there is no first obstacle in the horizontal space and there is a second obstacle in the vertical space, it indicates that the exhaust air of the second outdoor unit is restricted at this time, which is likely to cause heat accumulation and poor heat exchange effect. Therefore, the priority of the outdoor unit of the first type can be determined as the first priority, and the priority of the outdoor unit of the second type can be determined as the second priority. That is, the priority of the first outdoor unit is determined as the first priority, and the priority of the second outdoor unit is determined as the second priority.

[0082] Optionally, when it is determined that there is a first obstacle in the horizontal space and there is a second obstacle in the vertical space, it indicates that the exhaust air of both the first outdoor unit and the second outdoor unit is restricted, and both are likely to cause heat accumulation and poor heat exchange effect. Therefore, in order to further determine the priority of each outdoor unit, the execution entity of the embodiment of the present application can control each outdoor unit to operate for a preset duration. The above preset duration can be the operating cycle of the outdoor unit set in advance, such as 5 minutes, or 10 minutes, etc.

[0083] After that, after controlling each outdoor unit to operate for the above preset duration, the exhaust pressure corresponding to each outdoor unit can be obtained, and the target type corresponding to the outdoor unit with the minimum exhaust pressure can be determined.

[0084] Finally, the priority of the outdoor unit of this target type can be determined as the first priority, and the priority of the outdoor unit whose type is not this target type can be determined as the second priority.

[0085] As an exemplary implementation manner, when the outdoor unit with the minimum exhaust pressure is the first outdoor unit, the above target type is the first type. Therefore, the priority of the outdoor unit of the first type can be determined as the first priority, and the priority of the outdoor unit of the second type can be determined as the second priority.

[0086] As another exemplary implementation manner, when the outdoor unit with the minimum exhaust pressure is the second outdoor unit, the above target type is the second type. Therefore, the priority of the outdoor unit of the first type can be determined as the second priority, and the priority of the outdoor unit of the second type can be determined as the first priority.

[0087] Optionally, when it is determined that there is no first obstacle in the horizontal space and no second obstacle in the vertical space, it indicates that the exhaust of both the first outdoor unit and the second outdoor unit is not restricted at this time. Therefore, the priority of the outdoor unit of the first type can be determined as the first priority, and the priority of the outdoor unit of the second type can be determined as the second priority, that is, the priority of the first outdoor unit is set as the first priority, and the priority of the second outdoor unit is determined as the second priority, where the first priority is greater than the second priority.

[0088] Further, since there may be a situation where the unit cooling capacity of the second outdoor unit is less than that of the first outdoor unit, therefore, when the execution subject of the embodiment of the present application determines the priority of each outdoor unit, it can determine the outdoor unit with the smallest unit cooling capacity according to the unit cooling capacity of each outdoor unit (for the convenience of distinction, the outdoor unit with the smallest unit cooling capacity is hereinafter referred to as the "first target outdoor unit").

[0089] After that, it can be determined whether the type of the first target outdoor unit is the first type.

[0090] As an optional implementation manner, when it is determined that the type of the first target outdoor unit is the first type, the priority of the outdoor unit of the first type can be determined as the first priority, and the priority of the outdoor unit of the second type can be determined as the second priority.

[0091] As another optional implementation manner, when it is determined that the type of the first target outdoor unit is the second type, the priority of the outdoor unit of the second type can be determined as the second priority, and the priority of the outdoor unit of the second type can be determined as the first priority.

[0092] The technical solution provided by the embodiment of the present application determines the priority of each outdoor unit by obtaining the installation environment corresponding to the outdoor unit and according to the above installation environment and the type of each outdoor unit. This technical solution determines the priority of the outdoor unit by referring to the installation environment of the outdoor unit and the type of the outdoor unit, which can reduce the priority of the outdoor unit blocked by obstacles in the installation environment, reduce the influence of the installation environment on the operation of the outdoor unit, and realize the rapid determination of the priority of the outdoor unit according to the installation environment, thereby improving the operation efficiency of the outdoor unit.

[0093] See Figure 7 , which is a flowchart of an embodiment of another control method for a multi-connected air conditioner system provided by the embodiment of the present application. Figure 7 The process shown Figure 4 On the basis of the process shown, it describes how to control at least one outdoor unit to operate specifically according to the required cooling capacity, the unit cooling capacity and priority of each outdoor unit when the priority of the outdoor unit includes the first priority and the second priority, and the first priority is greater than the second priority. As Figure 7As shown, the process may include the following steps: Step 701: Determine whether there is at least one second target outdoor unit in the outdoor units corresponding to the first priority, whose unit cooling capacity is greater than the required cooling capacity. If so, execute Step 702; if not, execute Step 703.

[0094] Step 702: Control at least one outdoor unit with the first priority to operate.

[0095] Step 703: Control multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operating cycles; wherein, the operating cycle of the outdoor unit corresponding to the first priority is greater than the operating cycle of the outdoor unit corresponding to the second priority.

[0096] The following is a unified description of Steps 701 to 703: The above-mentioned second target outdoor unit refers to an outdoor unit among the outdoor units with the first priority, whose unit cooling capacity is greater than the required cooling capacity of the indoor unit.

[0097] In the embodiment of the present application, since the priority of each outdoor unit is determined in advance, when controlling the operation of the outdoor unit, the outdoor unit with the first priority can be preferentially operated. Based on this, the execution entity of the embodiment of the present application can first determine whether there is at least one outdoor unit in the outdoor units corresponding to the first priority, whose unit cooling capacity is greater than the required cooling capacity (for the convenience of distinction, the outdoor unit with the first priority whose unit cooling capacity is greater than the required cooling capacity is hereinafter referred to as the "second target outdoor unit").

[0098] Optionally, when it is determined that there is at least one second target outdoor unit, it means that only operating the outdoor unit with the first priority can meet the required cooling capacity of the indoor unit. Therefore, at least one outdoor unit with the first priority can be controlled to operate, so as to meet the required cooling capacity of the indoor unit.

[0099] As an exemplary implementation manner, it can be determined whether the second target outdoor unit includes a third target outdoor unit with the smallest total unit cooling capacity among the outdoor units corresponding to the first priority. If it is determined that there is a third target outdoor unit in the second target outdoor unit, it means that only operating the third target outdoor unit with the smallest unit cooling capacity can meet the above-mentioned required cooling capacity. Therefore, the third target outdoor unit can be controlled to operate alone; if it is determined that there is no such third target outdoor unit in the second target outdoor unit, it means that the third target outdoor unit with the smallest unit cooling capacity among the outdoor units with the first priority cannot meet the required cooling capacity. Therefore, the outdoor units corresponding to the first priority can be controlled to rotate and operate according to their respective corresponding operating cycles. Among them, corresponding operating cycles can be set for the outdoor units corresponding to the first priority in advance, and since the energy consumption of the third target outdoor unit is less, the operating cycle of the third target outdoor unit is greater than that of other outdoor units.

[0100] Optionally, when it is determined that there is no such second target outdoor unit, it indicates that only operating the outdoor units with the first priority cannot meet the required cooling capacity of the indoor unit. Therefore, multiple outdoor units with the first priority and the second priority can be controlled to rotate and operate according to their respective corresponding operating cycles, so as to achieve the above-mentioned required cooling capacity. Among them, the operating cycles corresponding to the outdoor units with different priorities can be preset in advance, and the operating cycle of the outdoor unit corresponding to the first priority is greater than the operating cycle of the outdoor unit corresponding to the second priority.

[0101] To facilitate the understanding of the operation of the above outdoor units, the following is an example for illustration: For example, assume that the outdoor units include outdoor unit A, outdoor unit B, outdoor unit C, and outdoor unit D. Further assume that the unit cooling capacity QA (the unit cooling capacity of outdoor unit A) > QB (the unit cooling capacity of outdoor unit B) > QC (the unit cooling capacity of outdoor unit C) > QD (the unit cooling capacity of outdoor unit D), and outdoor unit D is the first outdoor unit. Therefore, the priority of the first outdoor unit is the first priority. Further assume that the required cooling capacity of the indoor unit is Qn. Based on this, the control strategies for outdoor unit A, outdoor unit B, outdoor unit C, and outdoor unit D are as shown in Table 1 below: Table 1

[0102] In one embodiment, during the process of controlling multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operating cycles, in order to avoid safety problems due to excessive system pressure, the execution entity of the embodiment of the present application can obtain the current system pressure and determine whether the system pressure is greater than a preset pressure threshold.

[0103] Optionally, when it is determined that the system pressure is greater than the pressure threshold, the outdoor unit corresponding to the second priority can be controlled to stop operating.

[0104] In one embodiment, through Figure 6 As can be seen from the shown process, the determination of the outdoor unit priority can be related to whether there are obstacles in the air outlet direction of the outdoor unit. Therefore, when there are no obstacles in the air outlet direction of the outdoor unit corresponding to the first priority and there are obstacles in the air outlet direction of the outdoor unit corresponding to the second priority, during the process of controlling multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operating cycles, when it is detected that the outdoor unit corresponding to the second priority is operating, the fan module of the outdoor unit corresponding to the first priority can be turned on to increase the circulating exhaust air around the unit, reduce the return air temperature of the outdoor unit corresponding to the second priority, improve the heat exchange effect, and thus improve the operating efficiency of the outdoor unit.

[0105] To facilitate the understanding of the rotation operation process of the outdoor units controlling the first priority and the second priority, the following takes the air outlet direction of the first outdoor unit as the side direction of the fuselage and the air outlet direction of the second outdoor unit as the upward direction of the fuselage as an example to illustrate the operation modes of different installation environments of the outdoor units: Scenario 1: The installation environment is a scenario with a wall on the top and no wall on the air outlet side: ① Since the exhaust of the second outdoor unit is restricted in this scenario, it is easy to cause heat accumulation and poor heat exchange effect. Therefore, the first outdoor unit is preferentially operated. When the first outdoor unit cannot meet the load demand (required cooling capacity) on the indoor unit side, the second outdoor unit is then turned on. The operation cycle of the first outdoor unit should be longer than that of the second outdoor unit.

[0106] ② When the pressure of the system is higher than a certain pressure, the second outdoor unit is actively stopped and only the first outdoor unit is operated.

[0107] ③ When it rotates to the situation where only the second outdoor unit is operating, the first outdoor unit separately turns on the fan system to increase the circulating exhaust air around the unit, reduce the return air temperature of the second outdoor unit, and improve the heat exchange effect.

[0108] Scenario 2: The installation environment is a scenario with no wall on the top and a wall on the air outlet side: ① Since the exhaust of the first outdoor unit is restricted in this scenario, it is easy to cause heat accumulation and poor heat exchange effect. Then the program controls to preferentially operate the second outdoor unit. When the second outdoor unit cannot meet the load demand (required cooling capacity) on the indoor unit side, the first outdoor unit is then turned on. The operation cycle of the second outdoor unit should be longer than that of the first outdoor unit.

[0109] ② When the exhaust side pressure of the system is higher than a certain pressure, the first outdoor unit is actively stopped and only the second outdoor unit is operated.

[0110] ③ When it rotates to the situation where only the first outdoor unit is operating, the second outdoor unit separately turns on the fan system to increase the circulating exhaust air around the unit, reduce the return air temperature of the first outdoor unit, and improve the heat exchange effect.

[0111] Scenario 3: The installation environment is a scenario with a wall on the top and a wall on the air outlet side: ① Since the exhaust of both the second outdoor unit and the first outdoor unit is restricted in this scenario, they are respectively controlled to operate separately for a certain period for comparison.

[0112] ② If the exhaust side pressure of the system is lower when the second outdoor unit operates alone during the comparison process, the second outdoor unit is defined as the outdoor unit with a higher operation priority. When the second outdoor unit cannot meet the load demand (required cooling capacity) on the indoor unit side, the first outdoor unit is then turned on. The operation cycle of the second outdoor unit should be longer than that of the first outdoor unit.

[0113] ③When the pressure of the system is higher than a certain pressure, actively stop the first outdoor unit and only operate the second outdoor unit.

[0114] Scenario 4: If the installation environment is an installation scenario where there is no wall at the top and no wall on the air outlet side, or the installation scenario is not obtained, the operation of the outdoor unit is controlled according to the corresponding control strategy in Table 1 above.

[0115] The technical solution provided by the embodiments of the present application determines whether there is at least one second target outdoor unit among the outdoor units corresponding to the first priority, and if the unit cooling capacity of the outdoor unit is greater than the required cooling capacity, then control at least one outdoor unit with the first priority to operate; if not, then control multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operation cycles; wherein, the operation cycle of the outdoor unit corresponding to the first priority is greater than the operation cycle of the outdoor unit corresponding to the second priority. This technical solution determines the control strategy for the outdoor unit according to the unit cooling capacity and priority of the outdoor unit, which can reduce the waste of cooling capacity of the outdoor unit on the basis of ensuring the required cooling capacity, improve the operation efficiency of the outdoor unit, realize the improvement of the matching degree between the output cooling capacity of the outdoor unit and the cooling capacity demand of the indoor unit, improve the stability of the room temperature, enhance the user experience, and at the same time improve the operation efficiency of the outdoor unit.

[0116] See Figure 8 , which is a block diagram of an embodiment of a control device for a multi-connected air-conditioning system provided by the embodiments of the present application. As an embodiment, the device can be applied to a multi-connected air-conditioning system (such as Figure 1 the multi-connected air-conditioning system shown), the multi-connected air-conditioning system includes at least one first outdoor unit and at least one second outdoor unit, and the air outlet directions of the first outdoor unit and the second outdoor unit are different. As Figure 8 shown, the device may include: The first acquisition module 81 is used to acquire the type and unit cooling capacity of each currently connected outdoor unit; the type includes the first type and the second type, the first type indicates that the corresponding outdoor unit is the first outdoor unit, and the second type indicates that the corresponding outdoor unit is the second outdoor unit; The determination module 82 is used to determine the priority of each outdoor unit based on the type of each outdoor unit; The second acquisition module 83 is used to acquire the current required cooling capacity of the indoor unit; The control module 84 is used to control the operation of at least one outdoor unit according to the required cooling capacity, the unit cooling capacity and the priority of each outdoor unit.

[0117] As Figure 9 shown, it is a schematic structural diagram of an air conditioner provided by the embodiments of the present application. As Figure 9As shown in the figure, the air conditioner may include a processor 91, a communication interface 92, a memory 93, a communication bus 94, a plurality of indoor units 12, at least one first outdoor unit 111 (taking one first outdoor unit 111 as an example in the figure), and at least one second outdoor unit 112 (taking one second outdoor unit 112 as an example in the figure). The air outlet directions of the first outdoor unit 111 and the second outdoor unit 112 are different. The processor 91, the communication interface 92, and the memory 93 communicate with each other through the communication bus 94. The memory 93 is used to store computer programs. The plurality of indoor units 12 are used to adjust the indoor temperature. The number and type of the indoor units are not limited in the embodiments of the present application.

[0118] In an embodiment of the present application, when the processor 91 executes the program stored on the memory 93, it implements the control method of the multi-connected air conditioner system provided in any one of the foregoing method embodiments, including: Obtain the type and unit cooling capacity of each currently connected outdoor unit. The type includes a first type and a second type. The first type indicates that the corresponding outdoor unit is the first outdoor unit, and the second type indicates that the corresponding outdoor unit is the second outdoor unit. Based on the type of each outdoor unit, determine the priority of each outdoor unit. Obtain the current required cooling capacity of the indoor unit. According to the required cooling capacity, the unit cooling capacity, and the priority of each outdoor unit, control at least one of the outdoor units to operate.

[0119] See Figure 10 , which is a schematic structural diagram of another multi-connected air conditioner system provided in the embodiments of the present application. As shown in Figure 10 , the multi-connected air conditioner system 1000 may include: an air conditioner 1001. Among them, the above-mentioned air conditioner 1001 may be Figure 9 the air conditioner shown in the figure.

[0120] The embodiments of the present application also provide a storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the steps of the control method of the multi-connected air conditioner system provided in any one of the foregoing method embodiments.

[0121] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0122] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the relevant technology, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0123] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, as used herein, the singular forms "a", "an", and "the" may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0124] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A control method for a multi-connected air-conditioning system, characterized in that, Applied to a multi-connected air-conditioning system, the multi-connected air-conditioning system includes at least one first outdoor unit and at least one second outdoor unit, and the air outlet directions of the first outdoor unit and the second outdoor unit are different. The method includes: Obtain the type and unit cooling capacity of each currently connected outdoor unit; the type includes a first type and a second type, the first type indicates that the corresponding outdoor unit is the first outdoor unit, and the second type indicates that the corresponding outdoor unit is the second outdoor unit; Based on the type of each outdoor unit, determine the priority of each outdoor unit; Obtain the current required cooling capacity of the indoor unit; According to the required cooling capacity, the unit cooling capacity and the priority of each outdoor unit, control at least one of the outdoor units to operate.

2. The method according to claim 1, characterized in that The air outlet direction of the first outdoor unit is the horizontal space direction, and the air outlet direction of the second outdoor unit is the vertical space direction; The determining the priority of each outdoor unit based on the type of each outdoor unit includes: Determine that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority; The first priority is greater than the second priority.

3. The method according to claim 2, wherein The determining that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority includes: According to the unit cooling capacity of each outdoor unit, determine the first target outdoor unit with the smallest unit cooling capacity; When it is determined that the type of the first target outdoor unit is the first type, determine that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority.

4. The method according to claim 3, wherein The method further includes: When it is determined that the type of the first target outdoor unit is the second type, determine that the priority of the outdoor unit of the first type is the second priority, and the priority of the outdoor unit of the second type is the first priority.

5. The method according to claim 1, wherein The determining the priority of each outdoor unit based on the type of each outdoor unit includes: Obtain the installation environment corresponding to the outdoor unit; According to the installation environment and the type of each outdoor unit, determine the priority of each outdoor unit.

6. The method according to claim 5, characterized in that The air outlet direction of the first outdoor unit is the horizontal space direction, and the air outlet direction of the second outdoor unit is the vertical space direction; The determining the priority of each outdoor unit according to the installation environment and the type of each outdoor unit includes: According to the installation environment, determine whether there is a first obstacle in the horizontal space of the installation point corresponding to the outdoor unit in the air outlet direction of the first outdoor unit, and whether there is a second obstacle in the vertical space of the installation point corresponding to the outdoor unit in the air outlet direction of the second outdoor unit; When it is determined that the first obstacle exists in the horizontal space and the second obstacle does not exist in the vertical space, determine that the priority of the outdoor unit of the second type is the first priority, and the priority of the outdoor unit of the first type is the second priority; the first priority is greater than the second priority; When it is determined that the first obstacle does not exist in the horizontal space and the second obstacle exists in the vertical space, determine that the priority of the outdoor unit of the first type is the first priority, and the priority of the outdoor unit of the second type is the second priority.

7. The method according to claim 6, characterized in that, The method further includes: When it is determined that the first obstacle exists in the horizontal space and the second obstacle exists in the vertical space, control each of the outdoor units to operate for a preset duration; After controlling each of the outdoor units to operate for the preset duration, obtain the exhaust pressure corresponding to each outdoor unit; Determine the target type corresponding to the outdoor unit with the minimum exhaust pressure; Determine the priority of the outdoor unit of the target type as the first priority, and determine the priority of the outdoor unit whose type is not the target type as the second priority.

8. The method according to claim 1, wherein The priority of the outdoor unit includes a first priority and a second priority, and the first priority is greater than the second priority; Controlling at least one of the outdoor units to operate according to the required cooling capacity, the unit cooling capacity of each outdoor unit, and the priority includes: Determine whether there is at least one second target outdoor unit among the outdoor units corresponding to the first priority, whose unit cooling capacity is greater than the required cooling capacity; When it is determined that there is at least one second target outdoor unit, control at least one outdoor unit with the first priority to operate; When it is determined that there is no second target outdoor unit, control multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operation cycles; wherein, the operation cycle of the outdoor unit corresponding to the first priority is greater than the operation cycle of the outdoor unit corresponding to the second priority.

9. The method according to claim 8, characterized in that, When it is determined that there is at least one second target outdoor unit, controlling at least one outdoor unit with the first priority to operate, includes: Determine whether the second target outdoor unit includes a third target outdoor unit, which is the outdoor unit with the minimum unit cooling capacity among the outdoor units corresponding to the first priority; When it is determined that the third target outdoor unit exists among the second target outdoor units, control the third target outdoor unit to operate alone; When it is determined that the third target outdoor unit does not exist among the second target outdoor units, control the outdoor units corresponding to the first priority to rotate and operate according to their respective corresponding operation cycles, wherein the operation cycle of the third target outdoor unit is greater than the operation cycles of other outdoor units.

10. The method according to claim 8, wherein During the process of controlling multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operation cycles, the method further includes: Obtain the current system pressure; When the system pressure is greater than a preset pressure threshold, control the outdoor unit corresponding to the second priority to stop operating.

11. The method according to claim 8, wherein When there is no obstacle in the air outlet direction of the outdoor unit corresponding to the first priority and there is an obstacle in the air outlet direction of the outdoor unit corresponding to the second priority, during the process of controlling multiple outdoor units with the first priority and the second priority to rotate and operate according to their respective corresponding operating cycles, the method further includes: When it is detected that the outdoor unit corresponding to the second priority is operating, turn on the fan module of the outdoor unit corresponding to the first priority.

12. The method according to claim 1, wherein The obtaining the type and unit cooling capacity of each currently connected outdoor unit includes: Obtain the target unique identifier of each outdoor unit; According to the pre-set corresponding relationship between the unique identifier, type, and unit cooling capacity of the outdoor unit, determine the type and unit cooling capacity corresponding to the target unique identifier.

13. A control device for a multi-connected air conditioner system, characterized in that, Applied to a multi-connected air-conditioning system, the multi-connected air-conditioning system includes at least one first outdoor unit and at least one second outdoor unit, and the air outlet directions of the first outdoor unit and the second outdoor unit are different. The device includes: A first obtaining module, configured to obtain the type and unit cooling capacity of each currently connected outdoor unit; the type includes a first type and a second type, the first type indicates that the corresponding outdoor unit is the first outdoor unit, and the second type indicates that the corresponding outdoor unit is the second outdoor unit; A determining module, configured to determine the priority of each outdoor unit based on the type of each outdoor unit; A second obtaining module, configured to obtain the current required cooling capacity of the indoor unit; A control module, configured to control at least one of the outdoor units to operate according to the required cooling capacity, the unit cooling capacity, and the priority of each outdoor unit.

14. An air conditioner, characterized in that, Includes: An indoor unit, at least one first outdoor unit, at least one second outdoor unit, a processor, a communication interface, a memory, and a communication bus; Wherein, the air outlet directions of the first outdoor unit and the second outdoor unit are different; the processor, the communication interface, and the memory complete communication with each other through the communication bus; the memory is used to store a computer program; when the processor executes the computer program, it implements the control method of the multi-connected air-conditioning system according to any one of claims 1-12.

15. A multi-connected air conditioning system, characterized in that, The multi-connected air-conditioning system includes the air conditioner according to claim 14.

16. A storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by the processor, it implements the control method of the multi-connected air-conditioning system according to any one of claims 1-12.

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