Interconnection method for indoor unit and outdoor unit of multi-split air conditioner, controller, storage medium and air conditioner

Abstract

The invention relates to the technical field of smart homes, particularly provides an interconnection method for an indoor unit and an outdoor unit of a multi-split air conditioner, a controller, a storage medium and the multi-split air conditioner, and aims to solve the problem of communication interconnection between the indoor unit and the outdoor unit with communication isolation. In order to achieve the purpose, the multi-split air conditioner comprises an outdoor unit and at least one indoor unit, the outdoor unit comprises an outdoor unit side communication module, the indoor unit comprises an indoor unit side communication module, and a controller is in communication connection with the outdoor unit side communication module and the indoor unit side communication module. The method provided by the invention comprises the following steps: based on a controller, respectively communicating with an outdoor unit side communication module and an indoor unit side communication module to realize communication interconnection between an outdoor unit and an indoor unit. Therefore, the problem of communication isolation between the indoor units and the outdoor units can be solved, combined application between the indoor units and the outdoor units of different brands and models is achieved, and the compatibility of the multi-split air conditioner to the brands and models of the indoor units and the outdoor units in the multi-split air conditioner is improved.

Description

Technical Field

[0001] This application relates to the technical field of smart home, and specifically relates to a method for interconnecting indoor and outdoor units of a multi-connected air conditioner, a controller, a storage medium, and a multi-connected air conditioner. Background Art

[0002] With the acceleration of the urbanization process and population growth, people's demand for air conditioning equipment is also constantly expanding. Multi-connected air conditioners have been widely used in commercial buildings, office spaces, high-end residences and other fields due to their advantages of high energy efficiency, flexible installation, and precise control. Among them, a multi-connected air conditioner is an air conditioning system in which one or more outdoor units are connected to multiple indoor units.

[0003] However, there are various air conditioning products on the market now. Indoor and outdoor units of different brand models may adopt different communication protocols, which will cause the inability to directly communicate between indoor and outdoor units of different brands or different models. Moreover, some old air conditioners do not have the ability to be upgraded online or locally, and can only improve their performance by replacing the circuit board, which is not conducive to improving the user experience. In the prior art, generally, a Bluetooth tooling for air conditioners is used to control and manage multi-connected air conditioners in commercial or industrial environments. However, the existing Bluetooth tooling is only applicable to a single indoor and outdoor unit product of the air conditioner, and cannot realize the communication between indoor and outdoor units with communication isolation, has poor compatibility, and has a single function. Similarly, it cannot realize the function of upgrading old air conditioners.

[0004] Correspondingly, a new solution is needed in this field to solve the above problems. Summary of the Invention

[0005] In order to overcome the above defects, this application is proposed to solve or at least partially solve the technical problem of how to realize the interconnection between indoor and outdoor units with communication isolation.

[0006] In a first aspect, a method for interconnecting indoor and outdoor units applicable to a multi-connected air conditioner is provided. The multi-connected air conditioner includes an outdoor unit and at least one indoor unit. The outdoor unit includes an outdoor unit side communication module, and the indoor unit includes an indoor unit side communication module. The method is applied to a controller, and the controller is communicatively connected to the outdoor unit side communication module and the indoor unit side communication module respectively; the method includes:

[0007] Based on the controller, communicate with the outdoor unit side communication module and the indoor unit side communication module respectively to realize the communication interconnection between the outdoor unit and the indoor unit.

[0008] In a technical solution of the above method for interconnecting indoor and outdoor units applicable to a multi-connected air conditioner, the communicating with the outdoor unit side communication module and the indoor unit side communication module respectively based on the controller includes:

[0009] Based on the controller, communicate with the outdoor unit communication module and the indoor unit communication module respectively to obtain the indoor unit parameters of the indoor unit and the outdoor unit parameters of the outdoor unit; and store the indoor unit parameters and the outdoor unit parameters.

[0010] In a technical solution of the above method for interconnecting indoor and outdoor units of a multi-connected air conditioner, the controller is communicatively connected to a mobile terminal; the method further includes:

[0011] Send the indoor unit parameters and / or the outdoor unit parameters to the mobile terminal to realize the visual display of the indoor unit parameters and / or the outdoor unit parameters.

[0012] In a technical solution of the above method for interconnecting indoor and outdoor units of a multi-connected air conditioner, after respectively obtaining the indoor unit parameters of the indoor unit and the outdoor unit parameters of the outdoor unit, the method further includes:

[0013] Based on the controller, perform parameter fitting on the indoor unit parameters to obtain the target indoor unit parameters required by the outdoor unit; and / or,

[0014] Based on the controller, perform parameter fitting on the outdoor unit parameters to obtain the target outdoor unit parameters required by the indoor unit.

[0015] In a technical solution of the above method for interconnecting indoor and outdoor units of a multi-connected air conditioner, the communicating with the outdoor unit communication module and the indoor unit communication module respectively based on the controller includes:

[0016] When responding to an indoor unit upgrade instruction, communicate with the indoor unit communication module based on the controller to send the indoor unit upgrade instruction to the indoor unit to realize the upgrade of the indoor unit; and / or,

[0017] When responding to an outdoor unit upgrade instruction, communicate with the outdoor unit communication module based on the controller to send the outdoor unit upgrade instruction to the outdoor unit to realize the upgrade of the outdoor unit.

[0018] In a technical solution of the above method for interconnecting indoor and outdoor units of a multi-connected air conditioner, the method further includes:

[0019] If the indoor unit does not support the upgrade function, obtain the indoor unit upgrade content according to the indoor unit upgrade instruction;

[0020] Based on the controller, send the indoor unit upgrade content to the indoor unit communication module, so that the indoor unit communication module controls the indoor unit to upgrade according to the indoor unit upgrade content; and / or,

[0021] The method further includes:

[0022] If the outdoor unit does not support the upgrade function, obtain the outdoor unit upgrade content according to the outdoor unit upgrade instruction;

[0023] Based on the controller, send the outdoor unit upgrade content to the outdoor unit communication module on the outdoor unit side, so that the outdoor unit communication module on the outdoor unit side controls the outdoor unit to perform an upgrade according to the outdoor unit upgrade content.

[0024] In one technical solution of the above indoor and outdoor unit interconnection method applicable to a multi-connected air conditioner, the communication with the outdoor unit communication module and the indoor unit communication module respectively based on the controller includes:

[0025] Based on the controller, communicate with the outdoor unit communication module and the indoor unit communication module respectively to obtain the operating state of the indoor unit of the indoor unit and the operating state of the outdoor unit of the outdoor unit respectively;

[0026] Generate a first control instruction according to the operating state of the indoor unit, and send the first control instruction to the indoor unit communication module on the indoor unit side, so that the indoor unit communication module on the indoor unit side controls the operation of the indoor unit according to the first control instruction; and / or,

[0027] Generate a second control instruction according to the operating state of the outdoor unit, and send the second control instruction to the outdoor unit communication module on the outdoor unit side, so that the indoor unit communication module on the indoor unit side controls the operation of the outdoor unit according to the second control instruction.

[0028] In a second aspect, there is provided a controller, which includes at least one processor; and a memory communicatively connected to the at least one processor; wherein, a computer program is stored in the memory, and when the computer program is executed by the at least one processor, the method described in any one of the technical solutions of the above indoor and outdoor unit interconnection method applicable to a multi-connected air conditioner is implemented.

[0029] In a third aspect, there is provided a computer-readable storage medium, which stores multiple program codes, and the program codes are suitable for being loaded and run by a processor to execute the method described in any one of the technical solutions of the above indoor and outdoor unit interconnection method applicable to a multi-connected air conditioner.

[0030] In a fourth aspect, there is provided a multi-connected air conditioner, which includes an outdoor unit, at least one indoor unit, and the controller described in any one of the technical solutions of the above controller technical solution. The outdoor unit includes an outdoor unit communication module on the outdoor unit side, the indoor unit includes an indoor unit communication module on the indoor unit side, and the controller is communicatively connected to the outdoor unit communication module and the indoor unit communication module respectively.

[0031] One or more of the above technical solutions of the present application have at least one or more of the following beneficial effects:

[0032] In implementing the technical solution provided by the present application, the multi-connected air conditioner includes an outdoor unit and at least one indoor unit. The outdoor unit includes an outdoor-side communication module, and the indoor unit includes an indoor-side communication module. The controller is communicatively connected to the outdoor-side communication module and the indoor-side communication module respectively. Based on the controller, communication is respectively carried out with the outdoor-side communication module and the indoor-side communication module to achieve communication interconnection between the outdoor unit and the indoor unit. Through the above configuration method, communication between the controller and the indoor unit can be achieved through the indoor-side communication module, and communication between the controller and the outdoor unit can be achieved through the outdoor-side communication module, thereby realizing communication interconnection between the indoor unit and the outdoor unit. In this way, the problem of communication isolation between the indoor unit and the outdoor unit can be solved, and combined application between indoor units and outdoor units of different brands and models can be realized, improving the compatibility of the multi-connected air conditioner with the brands and models of the internal indoor and outdoor units.

[0033] Furthermore, when the indoor unit or the outdoor unit does not support upgrading, the upgrade content can be obtained according to the upgrade instruction. Based on the communication between the controller and the outdoor-side communication module and the indoor-side communication module, the indoor unit and the outdoor unit can also be controlled to be upgraded according to the upgrade content, realizing the upgrade of the internal equipment of the multi-connected air conditioner without the online upgrade ability, and improving the performance and service life of the multi-connected air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Referring to the accompanying drawings, the disclosure of the present application will become easier to understand. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the protection scope of the present application. Among them:

[0035] Figure 1 is a schematic flowchart of the main steps of an indoor and outdoor unit interconnection method applicable to a multi-connected air conditioner according to an embodiment of the present application;

[0036] Figure 2 is a schematic flowchart of the main steps of an implementation manner in which a controller controls the operation of an indoor unit and an outdoor unit according to an embodiment of the present application;

[0037] Figure 3 is a schematic block diagram of an implementation manner of a multi-connected air conditioner according to an embodiment of the present application;

[0038] Figure 4 is a schematic diagram of the main structure of a controller according to an embodiment of the present application.

[0039] Reference Signs:

[0040] 11: Memory; 12: Processor. Detailed implementation manners

[0041] The following describes some implementation manners of the present application with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present application and are not intended to limit the protection scope of the present application.

[0042] In the description of the present application, a "module" and a "processor" may include hardware, software, or a combination of both. A module may include a hardware circuit, various suitable sensors, communication ports, a memory, and may also include a software part, such as program code, or may be a combination of software and hardware. A processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, in hardware, or in a combination of both. A computer-readable storage medium includes any suitable medium that can store program code, such as a magnetic disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, and so on. The term "A and / or B" represents all possible combinations of A and B, such as only A, only B, or A and B. The term "at least one A or B" or "at least one of A and B" has a meaning similar to "A and / or B" and may include only A, only B, or A and B. The singular terms "a" and "this" may also include the plural form.

[0043] Some terms related to the present application are explained here first.

[0044] A multi-connected air condition unit is an air conditioning system in which one or more outdoor units are connected to multiple indoor units, and can achieve flexible and efficient air conditioning.

[0045] Refer to the attached Figure 1 , Figure 1 is a schematic diagram of the main steps of an indoor and outdoor unit interconnection method applicable to a multi-connected air condition unit according to an embodiment of the present application. As Figure 1 shown, the indoor and outdoor unit interconnection method applicable to a multi-connected air condition unit in the embodiment of the present application mainly includes the following step S101.

[0046] Step S101: Based on the controller, communicate with the outdoor unit side communication module and the indoor unit side communication module respectively to achieve communication interconnection between the outdoor unit and the indoor unit.

[0047] In this embodiment, the multi-connected air condition unit may include an outdoor unit and at least one indoor unit. Among them, the outdoor unit includes an outdoor unit side communication module, and the indoor unit includes an indoor unit side communication module. The embodiment of the present application is applied to a controller, and the controller is communicatively connected to the outdoor unit side communication module and the indoor unit side communication module respectively.

[0048] In one embodiment, the controller can be installed on the indoor unit or the outdoor unit.

[0049] In one embodiment, the controller can be connected to the mobile terminal by means of Bluetooth wireless communication.

[0050] In this embodiment, the outdoor unit side communication module can be a communication module produced by the manufacturer of the outdoor unit, which can be used to control the outdoor unit, obtain the information of the outdoor unit through the bus in the outdoor unit, and communicate with the controller. The indoor unit side communication module can be a communication module produced by the manufacturer of the indoor unit, which can be used to control the indoor unit, obtain the information of the indoor unit through the bus in the indoor unit, and communicate with the controller.

[0051] In one embodiment, the outdoor unit side communication module can be a plug-in module, which is connected to the outdoor unit by plugging, so as to expand the communication port of the outdoor unit, so that the outdoor unit can communicate with the controller through the outdoor unit side communication module.

[0052] In one embodiment, the indoor unit side communication module can be a plug-in module, which is connected to the indoor unit by plugging, so as to expand the communication port of the indoor unit, so that the indoor unit can communicate with the controller through the indoor unit side communication module.

[0053] In one embodiment, step S101 can further include:

[0054] Step S1011: Based on the controller, communicate with the outdoor unit side communication module and the indoor unit side communication module respectively to obtain the indoor unit parameters of the indoor unit and the outdoor unit parameters of the outdoor unit.

[0055] Step S1012: Store the indoor unit parameters and the outdoor unit parameters.

[0056] In this embodiment, the indoor unit parameters in step S1011 can be the operating parameters of the indoor unit. For example, it can include the cooling capacity, cooling power, heating capacity, heating power, air volume, air speed and other operating parameters of the indoor unit. In other embodiments, the indoor unit parameters can also be the specification parameters of the indoor unit. For example, it can include the brand model, size, required voltage and frequency and other specification parameters of the indoor unit, which do not affect the normal operation of this embodiment.

[0057] In this embodiment, the outdoor unit parameters in step S1011 can be the operating parameters of the outdoor unit. For example, it can include the compressor power, heat dissipation capacity and other operating parameters of the outdoor unit. In other embodiments, the outdoor unit parameters can also be the specification parameters of the outdoor unit. For example, it can include the brand model, compressor type, size, power supply voltage and other specification parameters of the indoor unit, which do not affect the normal operation of this embodiment.

[0058] In one embodiment, the controller can also be communicatively connected to a mobile terminal to implement functions such as data monitoring of a multi-connected air conditioner and viewing of historical data. For example, the user can view the operating status of the multi-connected air conditioner in real time through the mobile terminal.

[0059] In one embodiment, the embodiment of the present application further includes the following step S1013:

[0060] Step S1013: Send the indoor unit parameters and the outdoor unit parameters to the mobile terminal to achieve visual display of the indoor unit parameters and the outdoor unit parameters.

[0061] In this embodiment, the controller can be communicatively connected to the mobile terminal, and can send the indoor unit parameters and the outdoor unit parameters to the mobile terminal to achieve visual display.

[0062] In an actual application scenario, the mobile terminal can be a device such as a smart phone, a vehicle-mounted computer, or a smart wearable device.

[0063] In one embodiment, the mobile terminal can be communicatively connected to the controller by means of Bluetooth wireless connection.

[0064] In one embodiment, after step S1011, steps S1014 and S1015 are further included:

[0065] Step S1014: Based on the controller, perform parameter fitting on the indoor unit parameters to obtain the target indoor unit parameters required by the outdoor unit.

[0066] Step S1015: Based on the controller, perform parameter fitting on the outdoor unit parameters to obtain the target outdoor unit parameters required by the indoor unit.

[0067] In this embodiment, parameter fitting refers to the process of obtaining the target indoor unit parameters by using the relationship between the known indoor unit parameters and the target indoor unit parameters, and obtaining the target outdoor unit parameters by using the relationship between the known outdoor unit parameters and the target outdoor unit parameters. For example, when communicating and interconnecting indoor units and outdoor units of different brand models, the target indoor unit parameters required by the outdoor unit can be obtained according to the relationship between the known indoor unit parameters and the target indoor unit parameters and the known indoor unit parameters, and the target outdoor unit parameters required by the indoor unit can be obtained according to the relationship between the known outdoor unit parameters and the target outdoor unit parameters and the known outdoor unit parameters.

[0068] For example, taking step S1015 as an example, the indoor unit can be a product of manufacturer A, and the outdoor unit can be a product of manufacturer B. When the indoor unit and the outdoor unit communicate and interconnect, the indoor unit needs to obtain a target outdoor unit parameter. However, the target outdoor unit parameter is not provided in the outdoor unit of manufacturer B. Then, parameter fitting needs to be performed based on the known outdoor unit parameters in the outdoor unit, and the target outdoor unit parameter is obtained by using the relationship between the known outdoor unit parameters and the target outdoor unit parameter.

[0069] In one embodiment, the target outdoor unit parameter can be the external product exhaust pressure value. Then, the external unit exhaust pressure value can be determined based on parameters such as the external ring temperature, the compressor exhaust pressure temperature value, and the current pipe temperature in the outdoor unit parameters. Among them, the external unit exhaust pressure value refers to the pressure value of the refrigerant gas in the exhaust pipe at the outlet of the compressor, the external ring temperature refers to the temperature of the surrounding environment of the outdoor unit, and the current pipe temperature refers to the temperature of the high and low pressure pipelines of the air conditioner outdoor unit.

[0070] In one embodiment, the relationship between the known outdoor unit parameters and the target outdoor unit parameter and the relationship between the known indoor unit parameters and the target indoor unit parameter input manually can be obtained in advance for implementing the parameter fitting process.

[0071] In one embodiment, the controller can also be used to implement the upgrade of the multi-connected air conditioner.

[0072] In one embodiment, step S101 can further include step S1016 and step S1017:

[0073] Step S1016: When responding to the indoor unit upgrade instruction, communicate with the indoor unit side communication module based on the controller to send the indoor unit upgrade instruction to the indoor unit to implement the upgrade of the indoor unit.

[0074] Step S1017: When responding to the outdoor unit upgrade instruction, communicate with the outdoor unit side communication module based on the controller to send the outdoor unit upgrade instruction to the outdoor unit to implement the upgrade of the outdoor unit.

[0075] In an actual application scenario, step S1016 can specifically include: first, communicate with the indoor unit side communication module based on the controller to control the indoor unit to enter the standby state, then send the indoor unit upgrade instruction to the indoor unit to perform the upgrade of the indoor unit, and control the indoor unit to resume the operating state before the standby state after the upgrade of the indoor unit is completed.

[0076] In an actual application scenario, step S1017 can specifically include: first, communicate with the outdoor unit side communication module based on the controller to control the outdoor unit to enter the standby state, then send the outdoor unit upgrade instruction to the outdoor unit to perform the upgrade of the outdoor unit, and control the outdoor unit to resume the operating state before the standby state after the upgrade of the outdoor unit is completed.

[0077] In one embodiment, the embodiment of the present application may further include step S1018 and step S1019:

[0078] Step S1018: If the indoor unit does not support the upgrade function, obtain the indoor unit upgrade content according to the indoor unit upgrade instruction.

[0079] Step S1019: Based on the controller, send the indoor unit upgrade content to the communication module on the indoor unit side, so that the communication module on the indoor unit side controls the indoor unit to perform the upgrade according to the indoor unit upgrade content.

[0080] In this embodiment, the indoor unit upgrade content may include parameter upgrade content and control logic upgrade content.

[0081] As an example, if the indoor unit upgrade instruction is used to change the parameters in the Electrically Erasable Programmable Read Only Memory (EEPROM) of the indoor unit, the indoor unit upgrade content may include parameter upgrade content, and step S1019 may specifically include: Based on the controller, send the parameter upgrade content to the communication module on the indoor unit side, so that the communication module on the indoor unit side controls the indoor unit to perform EEPROM parameter change.

[0082] As an example, if the indoor unit upgrade instruction is used to change the fan control logic of the indoor unit, the indoor unit upgrade content may include fan control logic upgrade content, and step S1019 may specifically include: Send the fan control logic upgrade content to the communication module on the indoor unit side, so that the communication module on the indoor unit side changes the fan control logic of the indoor unit according to the fan control logic upgrade content.

[0083] In one embodiment, the embodiment of the present application may further include step S1019 and step S10110:

[0084] Step S1019: If the outdoor unit does not support the upgrade function, obtain the outdoor unit upgrade content according to the outdoor unit upgrade instruction.

[0085] Step S10110: Based on the controller, send the outdoor unit upgrade content to the communication module on the outdoor unit side, so that the communication module on the outdoor unit side controls the outdoor unit to perform the upgrade according to the outdoor unit upgrade content.

[0086] In one embodiment, reference may be made to the appendix Figure 2 , appendix Figure 2 is a schematic diagram of the main step flow of an embodiment in which the controller according to the embodiment of the present application controls the operation of the indoor unit and the outdoor unit. As Figure 2 shown, step S101 may further include steps S10111 to S10113:

[0087] Step S10111: Based on the controller, communicate with the outdoor unit communication module and the indoor unit communication module respectively to obtain the operating state of the indoor unit of the indoor unit and the operating state of the outdoor unit of the outdoor unit respectively.

[0088] Step S10112: Generate a first control instruction according to the operating state of the indoor unit, and send the first control instruction to the indoor unit communication module, so that the indoor unit communication module controls the operation of the indoor unit according to the first control instruction.

[0089] Step S10113: Generate a second control instruction according to the operating state of the outdoor unit, and send the second control instruction to the outdoor unit communication module, so that the indoor unit communication module controls the operation of the outdoor unit according to the second control instruction.

[0090] In this embodiment, the intelligent control of the multi-connected air conditioner can be realized by sending the first control instruction to the indoor unit communication module and sending the second control instruction to the outdoor unit communication module.

[0091] In one embodiment, taking step S10112 as an example, step S10112 may specifically include: when the temperature sensor of the indoor unit fails, based on the controller, realize the temperature self-fitting of the temperature sensor, predict the current indoor environmental temperature, and generate a first control instruction according to the current indoor environmental temperature, and send it to the indoor unit communication module, so that the indoor unit communication module controls the operation of the indoor unit according to the first control instruction.

[0092] In one embodiment, during the adaptation process between indoor units and outdoor units of different brand models, over-temperature adjustment may occur due to different performances, resulting in the phenomenon that the indoor temperature is alternately cold and hot due to unstable temperature control during the operation of the multi-connected air conditioner. Then, based on the controller, according to the real-time operating parameters of the indoor unit and the outdoor unit, a first control instruction can be generated to control the operation of the indoor unit, and a second control instruction can be generated to control the operation of the outdoor unit. For example, use the first control instruction to control parameters such as the operating wind speed of the indoor unit, and use the second control instruction to control parameters such as the compressor frequency of the outdoor unit to reduce the over-temperature adjustment problem.

[0093] In one embodiment, when a failure occurs in the indoor unit or the outdoor unit, the controller can also control the indoor unit and the outdoor unit to perform failure handling.

[0094] In one embodiment, the fault code information in the indoor unit and the outdoor unit can be pre - saved in the controller. When the same fault occurs multiple times in the multi - connected air conditioner, by combining the fault code information of the indoor unit and the outdoor unit, the fault state of the multi - connected air conditioner when the fault occurs is obtained to determine the characteristic parameters of the fault, and the characteristic parameters of the fault, the corresponding indoor unit fault code information, and the outdoor unit fault code information are recorded correspondingly, and the fault code information built into the controller is obtained and saved in the controller.

[0095] In other embodiments, the controller can also respond to the fault code information reported by the indoor - side communication module and the outdoor - side communication module, obtain the current fault state of the multi - connected air conditioner based on the fault code information built into the controller, and generate a fault handling instruction through data fitting calculation according to the current fault state, and send the fault handling instruction to the indoor - side communication module and the outdoor - side communication module, so that the indoor - side communication module controls the indoor unit to handle the fault, and the outdoor - side communication module controls the outdoor unit to handle the fault to ensure the stable operation of the multi - connected air conditioner system.

[0096] In an application scenario according to an embodiment of the present application, reference can be made to the appendix Figure 3 , appendix Figure 3 is a schematic diagram of the main block diagram of an embodiment of the multi - connected air conditioner according to an embodiment of the present application. As Figure 3 shown, the multi - connected air conditioner in the embodiment of the present application may include: a controller 201, an indoor unit 202, an outdoor unit 203, an indoor - side communication module 204, and an outdoor - side communication module 205.

[0097] Among them, the controller 201 can be set on the indoor unit 202 or the outdoor unit 203. The indoor - side communication module 204 is set on the indoor unit 202, and the outdoor - side communication module 205 is set on the outdoor unit 203.

[0098] In this embodiment, the controller 201 can be used for operations such as data monitoring and data storage of the indoor unit 202 and the outdoor unit 203, sending control instructions to the indoor unit 202 and the outdoor unit 203, sending upgrade instructions or upgrade content to the indoor unit 202 and the outdoor unit 203, receiving the fault code information reported by the indoor unit 202 and the outdoor unit 203, and sending fault handling instructions to the indoor unit 202 and the outdoor unit 203, etc.

[0099] In one embodiment, the controller 201 can also use Bluetooth wireless technology to wirelessly connect to a mobile terminal, so that users can realize data monitoring and historical data viewing of the multi - connected air conditioner through an application program on the mobile terminal.

[0100] In this embodiment, the indoor unit side communication module 204 can be used to control the upgrade of the indoor unit 202, control the operation of the indoor unit 202, obtain the indoor unit parameters of the indoor unit 202, control the indoor unit 202 to change parameters, and realize the communication and interconnection between the indoor unit 202 and the controller 201. The outdoor unit side communication module 205 can be used to control the upgrade of the outdoor unit 203, control the operation of the outdoor unit 203, obtain the outdoor unit parameters of the outdoor unit 203, control the outdoor unit 203 to change parameters, and realize the communication and interconnection between the outdoor unit 203 and the controller 201.

[0101] In one embodiment, as Figure 3 shown, the communication between the controller 201 and the indoor unit 202 and the communication between the controller 201 and the outdoor unit 203 can both adopt the Modbus communication protocol, so that the outdoor unit side communication module 205 or the indoor unit side communication module 204 can package the data in the outdoor unit or the indoor unit into Modbus communication protocol data packets and send the Modbus communication protocol data packets to the controller 201.

[0102] Among them, the Modbus communication protocol is a serial communication protocol used in the field of industrial automation. Since the Modbus communication protocol is an open and general protocol that allows reliable data exchange and control between different devices, the Modbus communication protocol can define the minimum operating required function points and the transmission content of the indoor unit parameters or outdoor unit parameters for the indoor and outdoor units of the air conditioner.

[0103] In one embodiment, after power-on, the controller 201 can continuously or periodically obtain the indoor unit parameters and outdoor unit parameters from the indoor unit side communication module and the outdoor unit side communication module based on the Modbus communication protocol and store them in its own storage device. Among them, the own storage device of the controller 201 can include an internal read-only memory (ROM), an external electrically erasable programmable read-only memory (EEPROM), an external flash memory (FLASH), and so on.

[0104] In one embodiment, the indoor unit side communication module 204 and the outdoor unit side communication module 205 can be plug-in modules, so as to expand the communication ports of the indoor unit 202 and the outdoor unit 203 in the form of spliceable modules, so that the indoor unit 202 and the outdoor unit 203 are not limited to a single communication method, enriching the communication methods of the indoor unit 202 and the outdoor unit 203.

[0105] In one embodiment, the brand model of the indoor unit side communication module 204 matches that of the indoor unit 202, and the brand model of the outdoor unit side communication module 205 matches that of the outdoor unit 203. For example, when an outdoor unit of manufacturer A communicates and interconnects with an indoor unit of manufacturer B, since the forms of the communication lines of the outdoor unit and the indoor unit are inconsistent, at this time, the outdoor unit side communication module provided by manufacturer A can be used to connect to the outdoor unit, and then connect to the indoor unit through the indoor unit side communication module provided by manufacturer B.

[0106] Based on the method described in the above step S101, communication between the controller and the indoor unit can be achieved through the indoor unit side communication module, and communication between the controller and the outdoor unit can be achieved through the outdoor unit side communication module, thereby realizing communication and interconnection between the indoor unit and the outdoor unit. In this way, the communication isolation between the indoor unit and the outdoor unit can be bypassed, and combined applications between indoor units and outdoor units of different brand models can be realized, improving the compatibility of the multi-split air conditioner with the brand models of the internal indoor and outdoor units.

[0107] Furthermore, when the indoor unit or the outdoor unit does not support upgrading, according to the upgrade content, based on the communication between the controller and the outdoor unit side communication module and the indoor unit side communication module, the indoor unit and the outdoor unit can also be controlled to be upgraded, realizing the upgrade of the internal equipment of the multi-split air conditioner without the online upgrade ability, and improving the performance and service life of the multi-split air conditioner unit.

[0108] It should be noted that although the above embodiments describe the various steps in a specific order, those skilled in the art can understand that in order to achieve the effects of this application, different steps do not necessarily have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders. These adjusted solutions are equivalent technical solutions to the technical solutions described in this application, and therefore will also fall within the protection scope of this application.

[0109] Those skilled in the art can understand that all or part of the processes in the method of implementing the above embodiment of this application can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable storage medium can include: any entity or device, medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier signal, telecommunication signal, and software distribution medium that can carry the computer program code.

[0110] Another aspect of the present application also provides a computer-readable storage medium.

[0111] In an embodiment of a computer-readable storage medium according to the present application, the computer-readable storage medium may be configured to store a program for implementing the internal and external unit interconnection method applicable to a multi-connected air conditioner in the above method embodiment. This program can be loaded and run by a processor to implement the internal and external unit interconnection method applicable to a multi-connected air conditioner. For the sake of convenience of description, only the parts related to the embodiments of the present application are shown. For the specific technical details not disclosed, please refer to the method part of the embodiments of the present application. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiments of the present application is a non-transitory computer-readable storage medium.

[0112] Another aspect of the present application also provides a controller.

[0113] In an embodiment of a controller according to the present application, the controller may include at least one processor; and a memory communicatively connected to the at least one processor; wherein, a computer program is stored in the memory, and when the computer program is executed by the at least one processor, the method described in any of the above embodiments is implemented. Reference may be made to the attached Figure 4 , Figure 4 In which, it is exemplarily shown that the memory 11 and the processor 12 are communicatively connected through a bus.

[0114] Another aspect of the present application also provides a multi-connected air conditioner.

[0115] In an embodiment of a multi-connected air conditioner according to the present application, the multi-connected air conditioner may include an outdoor unit, at least one indoor unit, and the controller described in the above controller embodiment. Among them, the outdoor unit includes an outdoor unit side communication module, the indoor unit includes an indoor unit side communication module, and the controller is communicatively connected to the outdoor unit side communication module and the indoor unit side communication module respectively.

[0116] So far, the technical solutions of the present application have been described in conjunction with one embodiment shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principle of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present application.

Claims

1. A method for interconnecting the indoor and outdoor units of a multi-connected air conditioner, characterized in that, The multi-connected air conditioner includes an outdoor unit and at least one indoor unit. The outdoor unit includes an outdoor-side communication module, and the indoor unit includes an indoor-side communication module. The method is applied to a controller, and the controller is communicatively connected to the outdoor-side communication module and the indoor-side communication module respectively; the method includes: Based on the controller, communicate with the outdoor-side communication module and the indoor-side communication module respectively to achieve communication and interconnection between the outdoor unit and the indoor unit.

2. The method for interconnecting the indoor and outdoor units of the multi-connected air conditioner according to claim 1, wherein: The communicating with the outdoor-side communication module and the indoor-side communication module respectively based on the controller includes: Based on the controller, communicate with the outdoor-side communication module and the indoor-side communication module respectively to obtain the indoor unit parameters of the indoor unit and the outdoor unit parameters of the outdoor unit; and store the indoor unit parameters and the outdoor unit parameters.

3. The method for interconnecting the indoor and outdoor units of a multi-connected air conditioner according to claim 2, characterized in that, The controller is communicatively connected to a mobile terminal; the method further includes: Send the indoor unit parameters and / or the outdoor unit parameters to the mobile terminal to realize visual display of the indoor unit parameters and / or the outdoor unit parameters.

4. The method for interconnecting the indoor and outdoor units of the multi-connected air conditioner according to claim 2, wherein: After respectively obtaining the indoor unit parameters of the indoor unit and the outdoor unit parameters of the outdoor unit, the method further includes: Based on the controller, perform parameter fitting on the indoor unit parameters to obtain the target indoor unit parameters required by the outdoor unit; and / or, Based on the controller, perform parameter fitting on the outdoor unit parameters to obtain the target outdoor unit parameters required by the indoor unit.

5. The method for interconnecting the indoor and outdoor units of the multi-connected air conditioner according to claim 1, wherein: The communicating with the outdoor-side communication module and the indoor-side communication module respectively based on the controller includes: When responding to an indoor unit upgrade instruction, based on the controller, communicate with the indoor-side communication module to send the indoor unit upgrade instruction to the indoor unit to realize the upgrade of the indoor unit; and / or, When responding to an outdoor unit upgrade instruction, based on the controller, communicate with the outdoor-side communication module to send the outdoor unit upgrade instruction to the outdoor unit to realize the upgrade of the outdoor unit.

6. The method for interconnecting the indoor and outdoor units of the multi-connected air conditioner according to claim 5, characterized in that, The method further includes: If the indoor unit does not support the upgrade function, obtain the indoor unit upgrade content according to the indoor unit upgrade instruction; Based on the controller, send the indoor unit upgrade content to the indoor-side communication module so that the indoor-side communication module controls the indoor unit to upgrade according to the indoor unit upgrade content; and / or, The method further includes: If the outdoor unit does not support the upgrade function, obtain the outdoor unit upgrade content according to the outdoor unit upgrade instruction; Based on the controller, send the outdoor unit upgrade content to the outdoor-side communication module so that the outdoor-side communication module controls the outdoor unit to upgrade according to the outdoor unit upgrade content.

7. The method for interconnecting the indoor and outdoor units of a multi-connected air conditioner according to claim 1, wherein: Based on the controller, communicating with the outdoor unit side communication module and the indoor unit side communication module respectively, includes: Based on the controller, communicating with the outdoor unit side communication module and the indoor unit side communication module respectively to obtain the operating state of the indoor unit of the indoor unit and the operating state of the outdoor unit of the outdoor unit; Generating a first control instruction according to the operating state of the indoor unit and sending the first control instruction to the indoor unit side communication module so that the indoor unit side communication module controls the operation of the indoor unit according to the first control instruction; and / or, Generating a second control instruction according to the operating state of the outdoor unit and sending the second control instruction to the outdoor unit side communication module so that the indoor unit side communication module controls the operation of the outdoor unit according to the second control instruction.

8. A controller, characterized in that, Includes: At least one processor; And a memory communicatively connected to the at least one processor; Wherein, a computer program is stored in the memory, and when the computer program is executed by the at least one processor, the method for interconnecting the indoor and outdoor units of the multi-connected air conditioner according to any one of claims 1-7 is implemented.

9. A computer-readable storage medium storing multiple program codes, characterized in that, The program code is adapted to be loaded and run by a processor to execute the method for interconnecting the indoor and outdoor units of the multi-connected air conditioner according to any one of claims 1-7.

10. A multi-connected air conditioner, characterized in that, The multi-connected air conditioner includes an outdoor unit, at least one indoor unit, and the controller according to claim 8. The outdoor unit includes an outdoor unit side communication module, the indoor unit includes an indoor unit side communication module, and the controller is communicatively connected to the outdoor unit side communication module and the indoor unit side communication module respectively.

Images