Control method and control device for multi-split air conditioner and multi-split air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for a multi-connected air conditioner, which comprises the following steps: obtaining indoor unit performance parameters and outdoor unit performance parameters of the multi-connected air conditioner; calculating a target indoor unit quantity according to the indoor unit performance parameters and the outdoor unit performance parameters; obtaining an actual indoor unit quantity connected to the outdoor unit; judging whether the target indoor unit quantity and the actual indoor unit quantity match; and issuing an alarm prompt in the case of mismatch. The application can determine the target indoor unit quantity matched with the outdoor unit performance under the current condition, compare the actual indoor unit quantity with the target indoor unit quantity, and judge whether the actual indoor unit quantity is reasonable. In this way, the problem that the indoor unit quantity does not match the outdoor unit operation capacity can be found in time, so that the multi-connected air conditioner can be prevented from continuing to run under adverse conditions. The application further discloses a control device for the multi-connected air conditioner and the multi-connected air conditioner.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a control method, control device, multi-split air conditioner, and storage medium for a multi-split air conditioner. Background Technology

[0002] With societal progress and development, indoor air conditioning for temperature regulation has become an indispensable part of modern buildings and homes. Among these, multi-split air conditioners, a type of split-system air conditioner where indoor and outdoor units are installed in the same or different spaces, are increasingly widely used in small and medium-sized buildings and some public buildings. Multi-split air conditioners have multiple indoor units, and accurate searching and matching of these units is necessary for effective control.

[0003] A control method for a multi-split air conditioner is disclosed in related technologies, comprising: hardware initialization and setting a wireless frequency band; detecting whether the wireless frequency band is idle; when the wireless frequency band is idle, sending a search signal for searching for a target indoor unit on the wireless frequency band, and waiting for the target indoor unit to send a first feedback signal; when the target indoor unit sends the first feedback signal, verifying the first feedback signal; when the first feedback signal passes the verification, determining the first feedback signal as a confirmation feedback signal, marking the target indoor unit as a connectable indoor unit and displaying it, and simultaneously judging the distance of the target indoor unit based on the strength of the confirmation feedback signal; sorting one or more target indoor units marked as connectable indoor units according to the judged distance of one or more target indoor units; and controlling the target indoor units marked as connectable indoor units.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] After searching and matching the indoor units, there may be too many or too few indoor units connected to the outdoor unit, which may cause the multi-split air conditioner to fail to achieve the desired operating effect or even damage the internal components.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a control method, control device, multi-split air conditioner, and storage medium for a multi-split air conditioner, to prevent the multi-split air conditioner from operating when the number of indoor units does not match its operating capacity.

[0009] In some embodiments, the control method includes: obtaining indoor unit performance parameters and outdoor unit performance parameters of a multi-split air conditioner; calculating a target number of indoor units based on the indoor unit performance parameters and outdoor unit performance parameters; obtaining the actual number of indoor units connected to the outdoor unit; determining whether the target number of indoor units and the actual number of indoor units match; and issuing an alarm if they do not match.

[0010] In some embodiments, the control device includes a processor and a memory storing program instructions, wherein the processor executes the control method for a multi-split air conditioner described above when running the program instructions.

[0011] In some embodiments, the multi-split air conditioner includes a multi-split air conditioner body, and the aforementioned control device for the multi-split air conditioner is installed on the multi-split air conditioner body.

[0012] In some embodiments, the storage medium stores program instructions that, when executed, perform the control method described above for multi-split air conditioners.

[0013] The control method, control device, and Dorena air conditioner for multi-split air conditioners provided in this disclosure can achieve the following technical effects:

[0014] Based on the performance parameters of the outdoor and indoor units, the target number of indoor units is determined to match the performance of the outdoor unit under the current conditions. The actual number of indoor units is then compared with this number to determine if they match. If they do not match, it indicates that the actual number of indoor units connected is inconsistent with the performance of both the indoor and outdoor units, which is detrimental to the operation of the multi-split air conditioner. Therefore, a prompt is issued to remind the user or relevant personnel to handle the issue. This method allows for the determination of the number of indoor units in a multi-split air conditioner, enabling timely detection of mismatches between the number of indoor units and the operating capacity of the outdoor unit, and preventing the multi-split air conditioner from continuing to operate under adverse conditions.

[0015] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0017] Figure 1 This is a schematic diagram of a multi-split air conditioner provided in an embodiment of this disclosure;

[0018] Figure 2 This is a schematic diagram of a control method for a multi-split air conditioner provided in an embodiment of this disclosure;

[0019] Figure 3 This is a schematic diagram of another control method for a multi-split air conditioner provided in an embodiment of this disclosure;

[0020] Figure 4 This is a schematic diagram of another control method for a multi-split air conditioner provided in an embodiment of this disclosure;

[0021] Figure 5 This is a schematic diagram of another control method for a multi-split air conditioner provided in an embodiment of this disclosure;

[0022] Figure 6 This is a schematic diagram of a control device for a multi-split air conditioner provided in an embodiment of this disclosure;

[0023] Figure 7 This is a schematic diagram of another multi-split air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0024] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure 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 disclosure. 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.

[0025] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure 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 disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0026] Unless otherwise stated, the term "multiple" means two or more.

[0027] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0028] 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.

[0029] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0030] In this embodiment of the disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technology and network communication technology into home appliances. They have the characteristics of intelligent control, intelligent sensing and intelligent application. The operation of smart home appliances often relies on the application and processing of modern technologies such as the Internet of Things, the Internet and electronic chips. For example, smart home appliances can be connected to electronic devices to enable users to remotely control and manage smart home appliances.

[0031] In the disclosed embodiments, the terminal device refers to an electronic device with wireless connectivity. The terminal device can communicate with the aforementioned smart home appliances via the internet, or directly via Bluetooth, Wi-Fi, or other methods. In some embodiments, the terminal device may be, for example, a mobile device, a computer, or an in-vehicle device built into a hovercraft, or any combination thereof. Mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, or any combination thereof. Wearable devices may include, for example, smartwatches, smart bracelets, pedometers, etc.

[0032] Combination Figure 1 As shown in the figure, this disclosure provides a multi-split air conditioner, including one outdoor unit 10 and multiple indoor units 20.

[0033] The outdoor unit 10 and each indoor unit 20 are connected by communication. The indoor unit 20 is configured to have identification information that indicates whether it is the main unit.

[0034] Combination Figure 2 As shown, this disclosure provides a control method for a multi-split air conditioner, including:

[0035] S201, the processor obtains the performance parameters of the indoor unit and the outdoor unit of the multi-split air conditioner.

[0036] S202, the processor calculates the target number of indoor units based on the performance parameters of the indoor unit and the outdoor unit.

[0037] S203, the processor obtains the actual number of indoor units connected to the outdoor unit.

[0038] S204, the processor determines whether the target number of indoor units matches the actual number of indoor units.

[0039] S205, in the event of a mismatch, the processor issues an alarm.

[0040] The control method for multi-split air conditioners provided in this disclosure determines the target number of indoor units based on the performance parameters of the outdoor and indoor units, thus identifying the number of indoor units that match the performance of the outdoor unit under the current conditions. The actual number of indoor units is then compared with this number to determine if a match exists. If a mismatch occurs, it indicates that the actual number of connected indoor units does not match the performance of the indoor and outdoor units, which is detrimental to the operation of the multi-split air conditioner. Therefore, a prompt is issued to remind the user or relevant personnel to address the issue. This method enables the determination of the number of indoor units in a multi-split air conditioner, thereby promptly identifying indoor unit mismatch problems and preventing disruption to the operation of the multi-split air conditioner.

[0041] Optionally, the indoor unit performance parameter is the indoor unit's horsepower. The outdoor unit performance parameter is the outdoor unit's horsepower.

[0042] Optionally, the processor obtains the actual number of indoor units connected to the outdoor unit by: assigning indoor unit addresses within a preset time period. The processor determines the number of indoor units based on the indoor unit addresses.

[0043] Optionally, the processor determines whether the target number of indoor units matches the actual number of indoor units by determining whether the target number of indoor units is equal to the actual number of indoor units.

[0044] Optionally, in the event of a mismatch, the system also includes: the processor controlling the multi-split air conditioner to immediately shut down. This minimizes the risk of the multi-split air conditioner operating abnormally.

[0045] Optionally, the mismatch can be further refined into two cases: the target number of indoor units is greater than the actual number of indoor units, and the target number of indoor units is less than the actual number of indoor units. Correspondingly, two different alarm prompts can be issued to differentiate between them, and two different operating strategies can be adopted. For example, if the target number of indoor units is greater than the actual number of indoor units, the processor issues a first alarm prompt and controls the multi-split air conditioner to stop operating. If the target number of indoor units is less than the actual number of indoor units, the processor only issues a second alarm prompt.

[0046] If the target number of indoor units is less than the actual number of indoor units, the processor determines whether the multi-split air conditioner needs to be shut down based on the difference between the actual and target numbers. If the difference is less than or equal to a preset threshold, the processor controls the multi-split air conditioner to continue operating. If the difference is greater than the preset threshold, the processor controls the multi-split air conditioner to continue operating. This preset threshold can be a specific numerical value, such as 1 unit, 2 units, etc., or it can be a preset percentage of the target number of indoor units, such as 10% or 20% of the target number of indoor units.

[0047] Combination Figure 3 As shown in the embodiments of this disclosure, another control method for a multi-split air conditioner is provided, including:

[0048] S300, begin.

[0049] S301, the processor obtains the performance parameters of the indoor unit and the outdoor unit of the multi-split air conditioner.

[0050] S302, the processor calculates the target number of indoor units based on the performance parameters of the indoor unit and the outdoor unit.

[0051] S303: Within a preset time period, the processor determines whether each indoor unit is the main unit based on the flag information.

[0052] S304: When the indoor unit is the host, the processor assigns a host address to the indoor unit.

[0053] S305: When the indoor unit is not the master unit, the processor assigns a slave address to the indoor unit.

[0054] S306, the processor determines the actual number of indoor units as the sum of the number of master addresses and slave addresses.

[0055] S307, the processor determines whether the target number of indoor units matches the actual number of indoor units.

[0056] S305, the processor issues an alarm when there is a mismatch.

[0057] Optionally, within a preset time period, the processor determines whether each indoor unit is the master unit based on the flag information. This includes: the indoor unit judging the flag information, outputting different flag bits according to the judgment result, and transmitting the flag bits to the outdoor unit. The flag bits can be 0 or 1. More specifically, 0 can represent a slave unit and 1 can represent a master unit. This allows for accurate determination of whether an indoor unit is the master unit.

[0058] Optionally, the preset time can be 30 seconds. In other embodiments, it can also be 10 seconds, 20 seconds, 40 seconds, 1 minute, etc. In this way, setting a certain preset time can avoid the indoor unit search time being too short, resulting in incomplete search of indoor units, and can also avoid the search process unnecessarily consuming too much time due to the time being too long.

[0059] After determining the indoor unit based on the flag information, if the indoor unit is the master, then master address 0 is assigned to it. If the indoor unit is not the master, then it is determined to be a slave, and slave addresses 1, 2, 3, ... n are assigned to it. At this time, the number of indoor unit addresses is n+1, that is, the number of indoor units is n+1.

[0060] Optionally, after the processor obtains the actual number of indoor units connected to the outdoor unit, and more specifically, after the processor determines whether each indoor unit is a host based on the flag information, the process further includes: the processor obtaining the number of indoor units with host addresses. If the number of indoor units with host addresses is not equal to the preset number, a fault prompt is issued. This allows users or staff to promptly understand if the number of host units among the indoor units is incorrect, and thus take timely action.

[0061] Optionally, if the number of indoor units with host addresses is not equal to the preset number, the system may also include: the processor controlling the multi-split air conditioner to stop operating.

[0062] The preset quantity is 1. If the number of main units in a multi-split air conditioning system is not 1, it indicates an incorrect connection in the system. Therefore, issuing a fault message at this time allows users to understand the current connection status of the indoor units.

[0063] Furthermore, the handling of situations where the number of indoor units with host addresses is not equal to the preset number can be further refined. A first fault prompt is issued when the number of indoor units with host addresses exceeds the preset number; a second fault prompt is issued when the number of indoor units with host addresses is less than the preset number. In this way, users can determine the current actual situation based on the different prompts.

[0064] Combination Figure 4 As shown in the embodiments of this disclosure, another control method for a multi-split air conditioner is provided, including:

[0065] S401, the processor obtains the performance parameters of the indoor unit and the outdoor unit of the multi-split air conditioner.

[0066] S402, the processor calculates the quotient between the performance parameters of the outdoor unit and the performance parameters of the indoor unit.

[0067] S403, the processor determines the target number of indoor units based on the quotient.

[0068] S404, the processor obtains the actual number of indoor units connected to the outdoor unit.

[0069] S405, the processor determines whether the target number of indoor units matches the actual number of indoor units.

[0070] S406, in the event of a mismatch, the processor issues an alarm.

[0071] Optionally, the processor calculates the quotient between the outdoor unit's performance parameters and the indoor unit's performance parameters by calculating the quotient between the outdoor unit's horsepower and the indoor unit's horsepower. More specifically, the outdoor unit's horsepower is used as the dividend, and the indoor unit's horsepower is used as the divisor when calculating the quotient.

[0072] Optionally, the processor determines the target number of indoor units based on the quotient, including: the processor determines the target number of indoor units based on the quotient and a preset ratio. Specifically, the correspondence between the target number of indoor units and the quotient is not strictly limited to 1:1. It may also be 1:2, 1:1.5, 1:1.2, 1:0.8, 1:0.5, etc. The specific ratio is predetermined.

[0073] Optionally, the processor determines the target number of indoor units based on the quotient value by: determining the target number of indoor units based on the quotient value and a preset mapping relationship. This mapping relationship specifically manifests as a mapping relationship between different target indoor unit numbers and the range of quotient values. For example, it can be stipulated that the target number of indoor units corresponding to a quotient value greater than or equal to 0.5 and less than 1 is 1; and similar stipulations can be made for the target number of indoor units being 2, 3, 4, etc. In this way, in practical applications, after determining the specific value of the quotient, the target number of indoor units can be directly determined based on this mapping relationship. Even when the quotient value is not an integer or a non-integer multiple, the target number of indoor units can be quickly determined without adding other logic, which simplifies the operation.

[0074] Combination Figure 5 As shown in the embodiments of this disclosure, another control method for a multi-split air conditioner is provided, including:

[0075] S500, begin.

[0076] S501, the processor obtains the performance parameters of the indoor unit and the outdoor unit of the multi-split air conditioner.

[0077] S502, the processor calculates the quotient between the performance parameters of the outdoor unit and the performance parameters of the indoor unit.

[0078] S503, the processor determines the target number of indoor units based on the quotient.

[0079] S504: Within a preset time period, the processor determines whether each indoor unit is the main unit based on the flag information.

[0080] In the S505, when the indoor unit is the host, the processor assigns a host address to the indoor unit.

[0081] S506, the processor obtains the number of indoor units with host addresses.

[0082] S507, the processor determines whether the number of indoor units with host addresses is equal to the preset number.

[0083] S508 issues a fault warning and stops the multi-split air conditioner when the number of host addresses does not equal the preset number.

[0084] In the S509, when the indoor unit is not the master unit, the processor assigns a slave address to the indoor unit.

[0085] In S510, when the number of host addresses equals the preset number, the processor determines the actual number of indoor units as the sum of the number of host addresses and slave addresses.

[0086] S511, the processor determines whether the target number of indoor units matches the actual number of indoor units.

[0087] S512, when matched, the processor controls the multi-split air conditioner to operate normally.

[0088] In the event of a mismatch, the S513 processor will issue an alarm.

[0089] The control method for multi-split air conditioners provided in this disclosure determines the target number of indoor units based on the performance parameters of the outdoor and indoor units, thus identifying the number of indoor units that match the performance of the outdoor unit under the current conditions. The actual number of indoor units is then compared with this number to determine if a match exists. If a mismatch occurs, it indicates that the actual number of connected indoor units does not match the performance of the indoor and outdoor units, which is detrimental to the operation of the multi-split air conditioner. Therefore, a prompt is issued to remind the user or relevant personnel to address the issue. This method enables the determination of the number of indoor units in a multi-split air conditioner, thereby promptly identifying indoor unit mismatch problems and preventing disruption to the operation of the multi-split air conditioner.

[0090] In addition, the ability to determine whether the number of indoor units connected to the outdoor unit is incorrect, and to issue a fault warning if an error is found, helps ensure the normal operation of multi-split air conditioners.

[0091] Combination Figure 6As shown, this disclosure provides a control device 200 for a multi-split air conditioner, including a processor 60 and a memory 61. Optionally, the device may further include a communication interface 62 and a bus 63. The processor 60, communication interface 62, and memory 61 can communicate with each other via the bus 63. The communication interface 62 can be used for information transmission. The processor 60 can call logical instructions in the memory 61 to execute the control method for a multi-split air conditioner described in the above embodiment.

[0092] Furthermore, the logic instructions in the aforementioned memory 61 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0093] The memory 61, 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 disclosure. The processor 60 executes functional applications and data processing by running the program instructions / modules stored in the memory 61, thereby implementing the control method for multi-split air conditioners in the above embodiments.

[0094] The memory 61 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 61 may include high-speed random access memory and may also include non-volatile memory.

[0095] Combination Figure 7 As shown, this disclosure provides a multi-split air conditioner 100, including: a product body and the aforementioned control device 200 for the multi-split air conditioner. The control device 200 for the multi-split air conditioner is installed in the product body. The installation relationship described herein is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the device 200 for the multi-split air conditioner can be adapted to feasible product bodies to achieve other feasible embodiments.

[0096] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the above-described control method for multi-split air conditioners.

[0097] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0098] The technical solutions of this disclosure 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 method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0099] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure 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 operation 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. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "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. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on 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, the relevant parts can be referred to the description of the method section.

[0100] 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 disclosure. 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.

[0101] 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 between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, 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. In addition, the functional units in the embodiments of this disclosure 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.

[0102] 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 disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing 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 that 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. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can 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 control method for a multi-split air conditioner, characterized in that, include: Obtain the performance parameters of the indoor and outdoor units of a multi-split air conditioner; Calculate the target number of indoor units based on the indoor unit performance parameters and outdoor unit performance parameters; The indoor unit is configured to have identification information that indicates whether the indoor unit is the main unit; Within a preset time period, the indoor unit is determined one by one to determine whether it is the main unit based on the flag information; If the indoor unit is the host, a host address is assigned to the indoor unit; If the indoor unit is not the master unit, a slave address is assigned to the indoor unit; Determine the actual number of indoor units based on the indoor unit's address; Obtain the number of indoor units with host addresses; If the number of indoor units with host addresses exceeds the preset number, the first fault prompt will be issued; A second fault warning is issued if the number of indoor units with host addresses is less than the preset number; Determine whether the target number of indoor units matches the actual number of indoor units; An alert will be issued if there is a mismatch.

2. The control method according to claim 1, characterized in that, Determining the actual number of indoor units based on the indoor unit address includes: The actual number of indoor units is determined as the sum of the number of master unit addresses and slave unit addresses.

3. The control method according to claim 1, characterized in that, The calculation of the target number of indoor units based on the indoor unit performance parameters and the outdoor unit performance parameters includes: Calculate the quotient between the performance parameters of the outdoor unit and the performance parameters of the indoor unit; The target number of indoor units is determined based on the quotient.

4. The control method according to any one of claims 1 to 3, characterized in that, The provision of issuing an alarm in case of mismatch includes: If the target number of indoor units is greater than the actual number of indoor units, the multi-split air conditioner will stop operating.

5. A control device for a multi-split air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the control method for a multi-split air conditioner as described in any one of claims 1 to 4.

6. A multi-split air conditioner, characterized in that, include: Multi-split air conditioner unit; The control device for a multi-split air conditioner as described in claim 5 is installed on the multi-split air conditioner body.

7. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the control method for multi-split air conditioners as described in any one of claims 1 to 4.

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