Wireless communication method of multi-split air conditioner, controller, medium and multi-split air conditioner

Abstract

The invention relates to the technical field of smart home, particularly provides a wireless communication method of a multi-split air conditioner, a controller, a storage medium and the multi-split air conditioner, and aims to solve the problem of how to realize communication in an air conditioning unit at low cost and high speed. In order to achieve the purpose, the method provided by the invention comprises the following steps: realizing wireless communication between an outdoor unit and at least one indoor unit based on a Bluetooth gateway and a Bluetooth slave node; and based on the Bluetooth slave node, wireless communication between the indoor units and / or wireless communication between the indoor units and the external Bluetooth equipment are / is realized. Through wireless signal transmission between the Bluetooth gateway and the Bluetooth slave node, wireless communication between the indoor unit and the outdoor unit of the air conditioner is realized, a communication line between the indoor unit and the outdoor unit of the air conditioner does not need to be arranged, communication interfaces required by internal communication of the multi-split air conditioner are reduced, and the cost required by internal communication of the multi-split air conditioner is reduced; and the data transmission rate of internal communication of the multi-split air conditioner is also improved.

Description

Technical Field

[0001] The present application relates to the field of smart home technology, and in particular to a wireless communication method, controller, storage medium and multi-split air conditioner. Background Art

[0002] As technologies like the Internet of Things (IoT), artificial intelligence (AI), and 5G mature, air conditioning products are gradually becoming more intelligent. Air conditioning units also need to improve their communication solutions to increase data transmission rates and meet the demands of IoT technology.

[0003] Currently, most air conditioner communication solutions still use wired communication. This requires the air conditioner's control panel to have sufficient interfaces to connect to external devices requiring wired transmission, resulting in high installation costs. Furthermore, after-sales troubleshooting is difficult, hindering the subsequent maintenance of the air conditioner unit. The wireless technology typically used in air conditioners is Zigbee, which is primarily designed for data transmission between electronic devices with low data rates, low power consumption, and short distances. This technology has short communication distances, slow transmission rates, and cannot connect to smart wireless devices in the home. Air conditioner parameters can only be modified through the wired controller, resulting in a poor user experience.

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

[0005] In order to overcome the above-mentioned defects, the present application is proposed to solve or at least partially solve the technical problem of how to achieve communication within the air-conditioning unit at low cost and high speed.

[0006] In a first aspect, a wireless communication method for a multi-split air conditioner is provided, wherein the multi-split air conditioner includes an outdoor unit and at least one indoor unit, wherein a Bluetooth slave node and an external Bluetooth device are provided on the indoor unit, and a Bluetooth gateway is provided on the outdoor unit; the method comprises:

[0007] Based on the Bluetooth gateway and the Bluetooth slave node, realize wireless communication between the outdoor unit and the at least one indoor unit;

[0008] Based on the Bluetooth slave node, wireless communication between the indoor units and / or wireless communication between the indoor unit and the external Bluetooth device is achieved.

[0009] In one technical solution of the wireless communication method for the multi-split air conditioner, the wireless communication between the outdoor unit and the at least one indoor unit based on the Bluetooth gateway and the Bluetooth slave node includes:

[0010] Receiving, via the Bluetooth gateway, Bluetooth wireless data sent by the indoor unit via the Bluetooth slave node; and / or,

[0011] The Bluetooth wireless data sent by the outdoor unit through the Bluetooth gateway is received through the Bluetooth slave node.

[0012] In one technical solution of the wireless communication method for the multi-split air conditioner, after receiving the Bluetooth wireless data sent by the indoor unit through the Bluetooth gateway, the method further includes:

[0013] Uploading the Bluetooth wireless data sent by the indoor unit to the server through the Bluetooth gateway; the server is used to generate a first control instruction according to the Bluetooth wireless data; and / or,

[0014] The first control instruction sent by the server is received through the Bluetooth gateway to control the operation of the multi-split air conditioner according to the first control instruction.

[0015] In one technical solution of the wireless communication method for the multi-split air conditioner,

[0016] In one technical solution of the wireless communication method for the multi-split air conditioner, controlling the operation of the multi-split air conditioner according to the first control instruction includes:

[0017] Sending the first control instruction to the Bluetooth slave node through the Bluetooth gateway;

[0018] The first control instruction is received through the Bluetooth slave node; and according to the indoor unit number in the first control instruction, it is determined whether the first control instruction is the data required by the indoor unit corresponding to the Bluetooth slave node; if so, the indoor unit corresponding to the Bluetooth slave node is controlled to execute the first control instruction.

[0019] In one technical solution of the wireless communication method for the multi-split air conditioner, wireless communication between the indoor unit and the external Bluetooth device is implemented based on the Bluetooth slave node, including:

[0020] Receiving the collected data of the external Bluetooth device through the Bluetooth slave node; and / or,

[0021] The Bluetooth wireless data sent by the indoor unit to the external Bluetooth device through the Bluetooth slave node is received through the external Bluetooth device.

[0022] In one technical solution of the wireless communication method of the multi-split air conditioner, the peripheral Bluetooth device is at least one of a wired controller, a centralized controller, a temperature sensor, a humidity sensor, and a granularity sensor.

[0023] In one technical solution of the wireless communication method for the multi-split air conditioner, a mobile terminal is connected to the multi-split air conditioner via Bluetooth wireless communication; the method further includes:

[0024] receiving a second control instruction from the mobile terminal, and controlling the operation of at least one of the outdoor unit, the indoor unit, and the external Bluetooth device according to the second control instruction; and / or,

[0025] The abnormal state of the multi-split air conditioner is sent to the mobile terminal to realize the visual display of the abnormal state.

[0026] In a second aspect, a controller is provided, comprising at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program, 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 wireless communication method for the multi-split air conditioner is implemented.

[0027] In a third aspect, a computer-readable storage medium is provided, which stores a plurality of program codes, wherein 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 wireless communication method of the multi-split air conditioner.

[0028] In a fourth aspect, a multi-split air conditioner is provided, which includes an outdoor unit, at least one indoor unit and a controller described in any one of the above-mentioned controller technical solutions, wherein the indoor unit is provided with a Bluetooth slave node, and the outdoor unit is provided with a Bluetooth gateway.

[0029] The above one or more technical solutions of this application have at least one or more of the following beneficial effects:

[0030] In the implementation of the technical solution provided by this application, a multi-split air conditioner includes an outdoor unit and at least one indoor unit, a Bluetooth slave node and an external Bluetooth device are set on the indoor unit, and a Bluetooth gateway is set on the outdoor unit; this application may include: based on the Bluetooth gateway and the Bluetooth slave node, realizing wireless communication between the outdoor unit and at least one indoor unit; based on the Bluetooth slave node, realizing wireless communication between indoor units and / or wireless communication between the indoor unit and the external Bluetooth device. Through the above configuration, wireless communication between the indoor and outdoor units of the air conditioner is realized through wireless signal transmission between the Bluetooth gateway and the Bluetooth slave node, which not only eliminates the need to lay out the communication line between the indoor and outdoor units of the air conditioner, reduces the communication interface required for internal communication of the multi-split air conditioner, reduces the cost required for internal communication of the multi-split air conditioner, but also improves the data transmission rate of internal communication of the multi-split air conditioner.

[0031] Furthermore, the present application can also connect the multi-split air conditioner and the mobile terminal via Bluetooth wireless communication, making it convenient for users to control the operation of the multi-split air conditioner and locate abnormal faults of the multi-split air conditioner through the mobile terminal, facilitating after-sales abnormality investigation and repair of the air conditioner and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The disclosure of this application will become more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Among them:

[0033] Figure 1 This is a flow chart of the main steps of a wireless communication method for a multi-split air conditioner according to an embodiment of the present application;

[0034] Figure 2 This is a schematic block diagram of an implementation of the internal structure of a Bluetooth gateway according to an embodiment of the present application;

[0035] Figure 3 This is a flowchart of the main steps of an implementation of wireless communication for a multi-split air conditioner according to an embodiment of the present application;

[0036] Figure 4 This is a schematic block diagram of an implementation method for implementing wireless communication for a multi-split air conditioner according to an embodiment of the present application;

[0037] Figure 5 It is a schematic diagram of the main structure of a controller according to an embodiment of the present application.

[0038] Reference numerals:

[0039] 201: Power port; 202: Power module; 203: Bluetooth antenna; 204: Bluetooth IC; 205: Control unit; 206: Ethernet module; 207: Network port; 401: Outdoor unit; 402: Indoor unit; 403: Peripheral Bluetooth device; 404: Bluetooth gateway; 405: Bluetooth slave node; 406: Cloud server; 11: Memory; 12: Processor. DETAILED DESCRIPTION

[0040] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application.

[0041] In the description of this application, "module" and "processor" may include hardware, software, or a combination of both. A module may include hardware circuitry, various suitable sensors, communication ports, and memory. It may also include software components, such as program code, or a combination of software and hardware. A processor may be a central processing unit (CPU), a microprocessor, an image processor, a digital signal processor, or any other suitable processor. A processor has data and / or signal processing capabilities. A processor may be implemented in software, hardware, or a combination of both. Computer-readable storage media include any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and / or B" refers to all possible combinations of A and B, such as only A, only B, or both A and B. The terms "at least one of A or B" or "at least one of A and B" have similar meanings to "A and / or B" and may include only A, only B, or both A and B. The singular forms "a" and "the" may also include the plural forms.

[0042] See attached Figure 1 , Figure 1 FIG. 1 is a flow chart showing the main steps of a wireless communication method for a multi-split air conditioner according to an embodiment of the present application. Figure 1 As shown, the method in the embodiment of the present application mainly includes the following steps S101 to S102.

[0043] Step S101: wireless communication between an outdoor unit and at least one indoor unit is realized based on a Bluetooth gateway and a Bluetooth slave node.

[0044] In this embodiment, the multi-split air conditioner used in the embodiment of the present application may include an outdoor unit and at least one indoor unit, a Bluetooth slave node and an external Bluetooth device are set on the indoor unit, and a Bluetooth gateway is set on the outdoor unit.

[0045] A multi-split air conditioner refers to an air conditioning system consisting of one or more outdoor units connected to multiple indoor units, capable of directly delivering air to one or more areas. A Bluetooth gateway is a relay device that receives Bluetooth data from Bluetooth slave nodes or devices and uploads it to a server via the network. It enables wireless communication of Bluetooth gateways through protocol conversion and remote management, expanding Bluetooth application scenarios. A Bluetooth slave node is a Bluetooth node device that receives and forwards data but does not have routing capabilities.

[0046] In one implementation, Bluetooth mesh technology can be employed, allowing a Bluetooth gateway and at least one Bluetooth slave node to communicate wirelessly with each other to form a mesh network. This network can then be connected to the cloud or server via the Bluetooth gateway. This mesh topology allows each Bluetooth gateway or Bluetooth slave node to function as a signal forwarder. Through distributed routing algorithms and multipath forwarding mechanisms, data transmission can be expanded and optimized, improving the coverage and reliability of Bluetooth wireless data transmission.

[0047] In one embodiment, step S101 may further include step S1011 and step S1012:

[0048] Step S1011: Receive the Bluetooth wireless data sent by the indoor unit via the Bluetooth slave node through the Bluetooth gateway.

[0049] Step S1012: Receive the Bluetooth wireless data sent by the outdoor unit through the Bluetooth gateway via the Bluetooth slave node.

[0050] In this embodiment, the "Bluetooth wireless data sent by the indoor unit from the node via Bluetooth" in step S101 can be the data collection result of the external Bluetooth device received by the indoor unit from the node via Bluetooth, or it can be the Bluetooth wireless data generated by the indoor unit according to its own operating status, neither of which affects the normal operation of this embodiment.

[0051] In this embodiment, the "Bluetooth wireless data sent by the outdoor unit through the Bluetooth gateway" in step S102 can be the Bluetooth wireless data generated by the outdoor unit according to the control instructions sent by the server to the outdoor unit, or it can be the Bluetooth wireless data generated by the outdoor unit according to its own operating status, neither of which affects the normal operation of this embodiment.

[0052] In one implementation, the Bluetooth gateway may also receive Bluetooth wireless data sent by a peripheral Bluetooth device connected to the Bluetooth slave node.

[0053] In one embodiment, after step S1011, steps S1013 and S1014 may be further included:

[0054] Step S1013: Upload the Bluetooth wireless data sent by the indoor unit to the server through the Bluetooth gateway.

[0055] Step S1014: Receive the first control instruction sent by the server through the Bluetooth gateway to control the operation of the multi-split air conditioner according to the first control instruction.

[0056] In this embodiment, the server is configured to generate a first control instruction according to Bluetooth wireless data.

[0057] In one embodiment, step S1013 may specifically include: the Bluetooth gateway receives Bluetooth wireless data sent by the Bluetooth slave node, and converts the Bluetooth wireless data into a wired network signal to form an uplink data link so that the server receives the wired network signal sent by the Bluetooth gateway.

[0058] In one embodiment, the server may be a cloud server, wherein the cloud server is a virtual server based on cloud computing technology. The Bluetooth gateway may be connected to the cloud server via a wired connection via its own network interface.

[0059] In one embodiment, artificial intelligence (AI) technology can be deployed on the server to establish an air-conditioning control model based on environmental data collected by external Bluetooth devices or the user's air-conditioning control habits uploaded by the Bluetooth gateway, so as to generate a first control instruction based on the environmental data collected in real time by the multi-split air conditioner to control the multi-split air conditioner to pre-cool or heat, thereby improving the user's quality of life.

[0060] In one embodiment, the environmental information may include information such as the season, time, and real-time temperature of the environment in which the multi-split air conditioner is located.

[0061] In one embodiment, please refer to the attached Figure 2 , attached Figure 2 This is a main block diagram of an embodiment of the internal structure of the Bluetooth gateway according to the embodiment of the present application. Figure 2 As shown, the Bluetooth gateway may include a power port 201 , a power module 202 , a Bluetooth antenna 203 , a Bluetooth Integrated Circuit (IC) 204 , a control unit 205 , an Ethernet module 206 and a network port 207 .

[0062] The power port 201 is an AC or DC power input port, which is used to connect a power adapter or an external power supply to provide power for the Bluetooth gateway.

[0063] The power module 202 is used to connect to the power port 201 so as to output different voltage values or current values to other modules to meet the power supply requirements of other modules.

[0064] The Bluetooth antenna 203 is used to transmit and receive Bluetooth wireless data, thereby enhancing the transmission quality and stability of Bluetooth wireless data.

[0065] The Bluetooth IC 204 is used to receive the communication data sent by the control unit 205 , convert the communication data into Bluetooth wireless data, and send it to the Bluetooth slave node of the indoor unit; receive the Bluetooth wireless data sent by the Bluetooth slave node, convert the Bluetooth wireless data into communication data and send it to the control unit 205 .

[0066] The control unit 205 is configured to perform data exchange with the Bluetooth IC 204 according to the Bluetooth wireless data transmission protocol format; and generate communication data to be transmitted to the Ethernet module 206 .

[0067] The Ethernet module 206 is used to convert the communication data of the control unit 205 into a standard Ethernet protocol signal and send it to the network port 207 through the network transformer.

[0068] The network port 207 is used to realize a wired connection between the Bluetooth gateway of the outdoor unit and the server through a communication line.

[0069] In one embodiment, the network port may be an RJ45 network port, which is a standardized 8-bit modular network interface used to connect a twisted pair cable to implement wired data transmission.

[0070] In one embodiment, the step of “controlling the operation of the multi-split air conditioner according to the first control instruction” in step S1014 may further include steps S10141 and S10142:

[0071] Step S10141: Send the first control instruction to the Bluetooth slave node through the Bluetooth gateway.

[0072] Step S10142: Receive a first control instruction through the Bluetooth slave node; and determine whether the first control instruction is the data required by the indoor unit corresponding to the Bluetooth slave node based on the indoor unit number in the first control instruction; if so, control the indoor unit corresponding to the Bluetooth slave node to execute the first control instruction.

[0073] In one implementation, the Bluetooth gateway may send the first control instruction to all Bluetooth slave nodes in a broadcasting manner, so that all Bluetooth slave nodes can receive the first control instruction sent by the Bluetooth gateway.

[0074] In one embodiment, the first control instruction may include the indoor unit number of the indoor unit to be controlled, or may include the Bluetooth slave node number of the indoor unit to be controlled, neither of which affects the normal implementation of this embodiment.

[0075] In this embodiment, step S10142 may specifically include: after the Bluetooth slave node receives the first control instruction, it can be determined whether the first control instruction is the control instruction corresponding to the Bluetooth slave node based on the data number contained in the first control instruction. If so, the indoor unit corresponding to the Bluetooth slave node is controlled to execute the first control instruction.

[0076] In this embodiment, the first control instruction is used to adjust the operating state of at least one indoor unit. For example, the indoor unit can be controlled to adjust the opening of the electronic expansion valve according to the first control instruction to control the refrigerant flow entering the evaporator of the indoor unit.

[0077] Step S102: Based on the Bluetooth slave node, wireless communication between indoor units and wireless communication between indoor units and external Bluetooth devices are realized.

[0078] In this embodiment, the external Bluetooth device may be a peripheral device equipped with a Bluetooth device, wherein the external device may be used to obtain environmental information of the indoor unit and data such as air-conditioning control parameters manually set by the user.

[0079] In one embodiment, the external Bluetooth device can transmit data collection results to a Bluetooth slave node configured in the indoor unit. In other embodiments, the external Bluetooth device can also receive control commands sent by the indoor unit via the Bluetooth slave node via the Bluetooth device configured thereon to adjust the operating state of the external Bluetooth device. For example, the control commands can be used to control the external Bluetooth device to start or stop data collection, as well as perform other operations.

[0080] In one embodiment, the peripheral Bluetooth device is at least one of a wired controller, a centralized controller, a temperature sensor, a humidity sensor, and a granularity sensor.

[0081] The particle size sensor is a device used to detect the size and quantity of particles to detect air quality. For example, the particle size sensor may include a PM2.5 sensor.

[0082] In one embodiment, the step S102 of “implementing wireless communication between the indoor unit and the external Bluetooth device based on the Bluetooth slave node” may further include steps S1021 and S1022:

[0083] Step S1021: Receive the collected data from the external Bluetooth device through the Bluetooth slave node.

[0084] Step S1022: Receive the Bluetooth wireless data sent by the indoor unit to the external Bluetooth device via the Bluetooth slave node through the external Bluetooth device.

[0085] In this embodiment, the "collecting data" in step S1021 may include collecting environmental information of the multi-split air conditioner, air conditioning control parameters manually set by the user, and other data.

[0086] In this embodiment, the "Bluetooth wireless data sent by the indoor unit to the external Bluetooth device via the Bluetooth slave node" in step S1022 may include control instructions for adjusting the external Bluetooth device, abnormal information of the indoor unit, and other data.

[0087] In one embodiment, the multi-split air conditioner can also be connected to the mobile terminal via Bluetooth wireless communication. The embodiment of the present application can also include step S103 and step S104:

[0088] Step S103: receiving a second control instruction from the mobile terminal, and controlling the operation of at least one of the outdoor unit, the indoor unit, and the external Bluetooth device according to the second control instruction.

[0089] Step S104: Send the abnormal status of the multi-split air conditioner to the mobile terminal to achieve visual display of the abnormal status.

[0090] In this embodiment, a mobile terminal refers to a computer device that can be used on the move, which may include mobile phones, notebooks, tablet computers, handheld terminals, smart watches, and other portable devices with computing and communication functions.

[0091] In this embodiment, step S103 may specifically include: the mobile terminal may include a human-computer interaction interface, through which the mobile terminal may obtain the operating parameters of the indoor and outdoor units set by the user, generate a second control instruction, and thereby control the operation of the indoor and outdoor units or a peripheral Bluetooth device. In this way, the mobile terminal can be used in place of a wired controller, eliminating the need for a dedicated wired controller to control a specific indoor or outdoor unit, making multi-split air conditioner control more convenient and efficient.

[0092] In this embodiment, step S104 may specifically include: when an abnormality occurs in the multi-split air conditioner, the abnormal status of the faulty indoor unit, outdoor unit or external Bluetooth device can be sent to the mobile terminal for visual display, so that after-sales personnel do not need to remove the casing of the outdoor unit or indoor unit to locate the abnormality, thereby facilitating after-sales maintenance.

[0093] In one embodiment, the operating parameters of the outdoor unit or the indoor unit may also be sent to the mobile terminal so that the user can directly view the operating status of the indoor unit or the outdoor unit through the mobile terminal.

[0094] In an application scenario according to an embodiment of the present application, please refer to the attached Figure 3 , attached Figure 3 This is a flow chart of the main steps of an implementation of wireless communication for a multi-split air conditioner according to an embodiment of the present application. Figure 3 As shown, the method in the embodiment of the present application may include:

[0095] Step S301: Based on the Bluetooth gateway, wired communication between the outdoor unit and the cloud server is realized.

[0096] In this embodiment, please refer to the attached Figure 4 , attached Figure 4 This is a main block diagram of an implementation method for wireless communication of a multi-split air conditioner according to an embodiment of the present application. Figure 4 As shown, the embodiment of the present application is applied to a multi-split air conditioner, wherein the multi-split air conditioner includes an outdoor unit 401 , an indoor unit 402 and an external Bluetooth device 403 .

[0097] In this embodiment, if Figure 4 As shown, the Bluetooth gateway 404 is installed on the outdoor unit 401, and the Bluetooth slave node 405 is installed on the indoor unit 402. The solid line is used to represent traditional wired communication, and the dotted line is used to represent wireless communication in the embodiment of the present application.

[0098] In a specific application scenario, step S301 may specifically include: the Bluetooth gateway 404 may convert the Bluetooth wireless data of the outdoor unit 401 into wired data, and upload the wired data to the cloud server 406 according to a specific network protocol. The cloud server 406 may also transmit the air conditioning control command to the Bluetooth gateway 404.

[0099] In this embodiment, the outdoor unit's Bluetooth gateway can upload real-time environmental information and operating status information of the multi-split air conditioner to a cloud server. The cloud server's artificial intelligence model can use this information to implement intelligent control of the multi-split air conditioner, such as pre-cooling or heating operations, to enhance the user experience.

[0100] Step S302: Implement wireless communication between the indoor unit and the outdoor unit based on the Bluetooth gateway and the Bluetooth slave node.

[0101] In this embodiment, the indoor unit can send Bluetooth wireless data to the Bluetooth gateway through the Bluetooth slave node according to the pre-set Bluetooth transmission protocol, and can also receive Bluetooth wireless data sent by the outdoor unit through the Bluetooth gateway, thereby realizing wireless communication between the indoor unit and the outdoor unit.

[0102] In this embodiment, when the Bluetooth gateway broadcasts Bluetooth wireless data to all Bluetooth slave nodes, the Bluetooth slave node can, after receiving the Bluetooth wireless data sent by the Bluetooth gateway, obtain the Bluetooth wireless data required by the indoor unit where the Bluetooth slave node is located using the data ID in the Bluetooth wireless data. The data ID can be the number of the Bluetooth slave node or the number of the indoor unit, without affecting the normal operation of this embodiment.

[0103] Step S303: Based on the Bluetooth slave node, wireless communication between the indoor unit and the external Bluetooth device is realized.

[0104] In this embodiment, the external Bluetooth device can upload the data collection results to the connected Bluetooth slave node, and the indoor unit can also send Bluetooth wireless data containing information such as control instructions for adjusting the operating status of the external Bluetooth device to the external Bluetooth device through the Bluetooth slave node to realize wireless communication between the indoor unit and the external Bluetooth device.

[0105] In a specific application scenario, the indoor unit can receive data collection results uploaded by an external Bluetooth device via a Bluetooth slave node, and then send these data collection results to a Bluetooth gateway via the Bluetooth slave node. The outdoor unit then uploads these data collection results to a cloud server via the Bluetooth gateway. The cloud server generates control instructions for the multi-split air conditioner based on the data collection results and sends these control instructions to the Bluetooth gateway. The outdoor unit then sends these control instructions to the Bluetooth slave node via the Bluetooth gateway. After receiving the control instructions via the Bluetooth slave node, the indoor unit adjusts its operating status accordingly.

[0106] In one embodiment, the indoor unit can also send Bluetooth wireless data representing real-time operating parameters and other information of the indoor unit to other Bluetooth slave nodes through a Bluetooth slave node. At the same time, the indoor unit can also receive Bluetooth wireless data sent by other indoor units through a Bluetooth slave node to achieve wireless communication between different indoor units.

[0107] In one embodiment, Figure 4 As shown, wireless communication can also be performed between external Bluetooth devices connected to the same indoor unit.

[0108] In one embodiment, Figure 4 As shown, the embodiment of the present application may further include step S304:

[0109] Step S304: realizing wireless connection between the mobile terminal and the multi-connection system based on any one of the Bluetooth gateway, the Bluetooth slave node and the peripheral Bluetooth device.

[0110] In one embodiment, based on Bluetooth mesh networking technology, the Bluetooth gateway, Bluetooth slave nodes, and peripheral Bluetooth devices can all be connected to the local area network near the indoor unit to create a Bluetooth device network and realize a wireless communication network topology. Seamless transmission between the above-mentioned Bluetooth devices can be achieved, and all Bluetooth nodes can receive wireless data. In this way, the Bluetooth mesh networking technology can be used to enable the Bluetooth gateway, Bluetooth slave nodes, and peripheral Bluetooth devices to tightly form a wireless Bluetooth network of a local area network, so as to realize mutual communication between the outdoor unit and the indoor unit, and between the peripheral Bluetooth device and the indoor unit, thereby realizing a wireless communication solution for multi-split air conditioners. At the same time, through the wireless Bluetooth network formed by the Bluetooth gateway, Bluetooth slave nodes, and peripheral Bluetooth devices, multi-split air conditioners and other smart home devices can also be wirelessly connected to achieve the effect of interconnecting everything.

[0111] In one embodiment, the Figure 4 As shown, the mobile terminal can be a user's mobile phone application (APP) terminal, so the user can monitor the operation of the multi-split air conditioner through the mobile phone APP terminal, and control the temperature setting of the multi-split air conditioner through the mobile phone APP terminal, effectively replacing the operation of the wired controller, and the operation is convenient and fast.

[0112] Based on the method described in the above steps S101 to S102, the present application realizes wireless communication between the indoor and outdoor units of a multi-split air conditioner through wireless signal transmission between a Bluetooth gateway and a Bluetooth slave node. Not only does it eliminate the need to layout communication lines between the indoor and outdoor units of the multi-split air conditioner, it also reduces the communication interfaces required for internal communication of the multi-split air conditioner, reduces the cost required for internal communication of the multi-split air conditioner, and also improves the data transmission rate of internal communication of the multi-split air conditioner.

[0113] Furthermore, the present application can also connect the multi-split air conditioner and the mobile terminal via Bluetooth wireless communication, making it convenient for users to control the operation of the multi-split air conditioner and locate abnormal faults of the multi-split air conditioner through the mobile terminal, facilitating after-sales abnormality investigation and repair of the air conditioner and improving user experience.

[0114] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effect of the present application, different steps do not have to be performed in such an order. They can be performed simultaneously (in parallel) or in other orders. These adjusted solutions are equivalent to the technical solutions described in this application, and therefore will also fall within the scope of protection of this application.

[0115] It will be understood by those skilled in the art that all or part of the processes in the method for implementing the above embodiment of the present application can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it can implement the steps of the above-mentioned various method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium, etc. that can carry the computer program code.

[0116] Another aspect of the present application provides a computer-readable storage medium.

[0117] In an embodiment of a computer-readable storage medium according to the present application, the computer-readable storage medium can be configured to store a program for executing the wireless communication method for a multi-split air conditioner of the above-mentioned method embodiment. The program can be loaded and executed by a processor to implement the wireless communication method for the multi-split air conditioner. For ease of explanation, only the parts related to the embodiment of the present application are shown. For specific technical details not disclosed, please refer to the method section of the embodiment of the present application. The computer-readable storage medium can be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present application is a non-transitory computer-readable storage medium.

[0118] Another aspect of the present application also provides a controller.

[0119] In an embodiment of a controller according to the present application, the controller may include at least one processor; and a memory connected to the at least one processor; wherein the memory stores a computer program, and when the computer program is executed by the at least one processor, the method described in any of the above embodiments is implemented. Figure 5 , Figure 5 exemplarily shows that the memory 11 and the processor 12 are communicatively connected via a bus.

[0120] Another aspect of the present application provides a multi-split air conditioner.

[0121] In an embodiment of a multi-split air conditioner according to the present application, the multi-split air conditioner may include an outdoor unit, at least one indoor unit and the controller described in the above controller embodiment, wherein a Bluetooth slave node is provided on the indoor unit and a Bluetooth gateway is provided on the outdoor unit.

[0122] Thus far, the technical solution of the present application has been described in conjunction with an embodiment shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A wireless communication method for a multi-split air conditioner, characterized in that: The multi-split air conditioner includes an outdoor unit and at least one indoor unit, the indoor unit is provided with a Bluetooth slave node and an external Bluetooth device, and the outdoor unit is provided with a Bluetooth gateway; the method includes: Based on the Bluetooth gateway and the Bluetooth slave node, realize wireless communication between the outdoor unit and the at least one indoor unit; Based on the Bluetooth slave node, wireless communication between the indoor units and / or wireless communication between the indoor unit and the external Bluetooth device is achieved.

2. The wireless communication method for a multi-split air conditioner according to claim 1, characterized in that: The method of realizing wireless communication between the outdoor unit and the at least one indoor unit based on the Bluetooth gateway and the Bluetooth slave node includes: Receiving, via the Bluetooth gateway, Bluetooth wireless data sent by the indoor unit via the Bluetooth slave node; and / or, The Bluetooth wireless data sent by the outdoor unit through the Bluetooth gateway is received through the Bluetooth slave node.

3. The wireless communication method for a multi-split air conditioner according to claim 2, characterized in that: After receiving the Bluetooth wireless data sent by the indoor unit through the Bluetooth gateway, the method further includes: Uploading the Bluetooth wireless data sent by the indoor unit to the server through the Bluetooth gateway; the server is used to generate a first control instruction according to the Bluetooth wireless data; and / or, The first control instruction sent by the server is received through the Bluetooth gateway to control the operation of the multi-split air conditioner according to the first control instruction.

4. The wireless communication method for a multi-split air conditioner according to claim 3, characterized in that: The step of controlling the operation of the multi-split air conditioner according to the first control instruction includes: Sending the first control instruction to the Bluetooth slave node through the Bluetooth gateway; The first control instruction is received through the Bluetooth slave node; and according to the indoor unit number in the first control instruction, it is determined whether the first control instruction is the data required by the indoor unit corresponding to the Bluetooth slave node; if so, the indoor unit corresponding to the Bluetooth slave node is controlled to execute the first control instruction.

5. The wireless communication method for a multi-split air conditioner according to claim 1, characterized in that: Based on the Bluetooth slave node, wireless communication between the indoor unit and the external Bluetooth device is realized, including: Receiving the collected data of the external Bluetooth device through the Bluetooth slave node; and / or, The Bluetooth wireless data sent by the indoor unit to the external Bluetooth device through the Bluetooth slave node is received through the external Bluetooth device.

6. The wireless communication method for a multi-split air conditioner according to claim 1, characterized in that: The peripheral Bluetooth device is at least one of a wired controller, a centralized controller, a temperature sensor, a humidity sensor, and a granularity sensor.

7. The wireless communication method for a multi-split air conditioner according to any one of claims 1 to 6, characterized in that: The mobile terminal is connected to the multi-split air conditioner via Bluetooth wireless communication; the method further includes: receiving a second control instruction from the mobile terminal, and controlling the operation of at least one of the outdoor unit, the indoor unit, and the external Bluetooth device according to the second control instruction; and / or, The abnormal state of the multi-split air conditioner is sent to the mobile terminal to realize the visual display of the abnormal state.

8. A controller, characterized in that: include: at least one processor; and, a memory communicatively coupled 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 wireless communication method for the multi-split air conditioner according to any one of claims 1 to 7 is implemented.

9. A computer-readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the wireless communication method for a multi-split air conditioner according to any one of claims 1-7.

10. A multi-split air conditioner, characterized in that: The multi-split air conditioner includes an outdoor unit, at least one indoor unit and the controller according to claim 8, the indoor unit is provided with a Bluetooth slave node, and the outdoor unit is provided with a Bluetooth gateway.

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