CN113218041A

CN113218041A - Pairing method and device of air conditioner based on power line communication and storage medium

Info

Publication number: CN113218041A
Application number: CN202110484124.1A
Authority: CN
Inventors: 周顶; 张君龙; 郑成立; 曹代辉
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-08-06
Anticipated expiration: 2041-04-30
Also published as: CN113218041B

Abstract

The application discloses a pairing method and device of an air conditioner based on power line communication and a storage medium. The method comprises the following steps: a first device wirelessly receives a first random code; the first device generates and transmits pairing request information to the power line based on the first random code, wherein the pairing request information includes: the method comprises the steps that a pairing request instruction, a first random code and an identity unique identification code of first equipment are sent; the first device receives pairing feedback information from the second device based on the power line, the pairing feedback information including: the pairing success instruction, a second random code of the second equipment and an identity unique identification code of the second equipment; and the first equipment determines that the second random code in the pairing feedback information is matched with the first random code, and stores the unique identification code of the identity of the second equipment. The pairing connection between the first equipment and the second equipment can be realized based on the power line, additional pairing equipment is not needed, and the installation and debugging are simple.

Description

Pairing method and device of air conditioner based on power line communication and storage medium

Technical Field

The present disclosure relates to the field of air conditioners, and in particular, to a pairing method and apparatus for an air conditioner based on power line communication, and a storage medium.

Background

Power Line Communication (PLC) is a technology for modulating an analog or digital signal in a carrier manner and then coupling the modulated signal to a Power line for transmission, and is mainly characterized in that a network does not need to be re-established and data transmission can be performed as long as a Power line is available.

In the related art, the PLC technology is generally applied to scenes such as intelligent meter reading, intelligent home, and intelligent buildings. In the field of air conditioners, because an internal unit and an external unit exist, communication connection between the internal unit and the external unit is generally realized by adopting a communication line, for example, for the communication connection between the external unit and the internal unit in a multi-split air conditioner, the connection, control and communication are often performed based on a CAN (Controller Area Network) bus or a 485 bus which is connected and arranged from the external unit to each internal unit, which causes the defects of complex installation, high material and labor cost, inconvenient maintenance and the like.

In order to save the traditional arrangement and maintenance cost of communication lines, if the PLC technology is adopted to realize the communication connection between the internal unit and the external unit of the air conditioner, a dedicated pairing device is required to realize the pairing connection between the internal unit and the external unit, so as to avoid the problem that the internal unit and the external unit of the same air conditioner cannot be reliably connected in communication in a power line of a public network, however, the related pairing method usually consumes labor and is complex to operate.

Disclosure of Invention

In view of this, embodiments of the present application provide a pairing method and apparatus for an air conditioner based on power line communication, and a storage medium, which aim to simply and reliably implement pairing connection between an internal unit and an external unit of the air conditioner.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides a pairing method of an air conditioner based on power line communication, wherein the air conditioner comprises the following steps: a first device and a second device respectively connected to the power lines; the method comprises the following steps:

the first device wirelessly receives a first random code;

the first device generates and transmits pairing request information to the power line based on the first random code, the pairing request information including: a pairing request instruction, the first random code and the unique identification code of the first equipment;

the first device receives pairing feedback information from the second device based on the power line, the pairing feedback information including: the pairing success instruction, a second random code of the second equipment and an identity unique identification code of the second equipment;

and the first equipment stores the unique identification code of the identity of the second equipment if the first equipment determines that the second random code in the pairing feedback information is matched with the first random code.

In some embodiments, the method further comprises:

the first device wirelessly receives a pairing release instruction;

the first device sends pairing release request information to the power line based on the pairing release instruction;

the first device receives pairing release feedback information from the second device based on the power line, the pairing release feedback information including: a pairing release completion instruction, the unique identification code of the second device and the unique identification code of the first device;

and the first equipment deletes the stored unique identification code of the second equipment based on the pairing release feedback information.

In some embodiments, the method further comprises:

the first device receiving pairing release request information from the second device based on the power line;

the first device sends pairing release feedback information to the power line based on the pairing release request information, wherein the pairing release feedback information includes: a pairing release completion instruction, the unique identification code of the first device and the unique identification code of the second device;

and the first equipment deletes the stored unique identification code of the second equipment.

In some embodiments, the first random code is the same as the second random code;

the first device determining that the second random code in the pairing feedback information matches the first random code, including: the first device determines that the second random code in the pairing feedback information is the same as the first random code.

In some embodiments, before the first device generates and transmits pairing request information to the power line based on the first random code, the method further comprises:

the first equipment judges whether the identity unique identification code of the paired equipment is stored locally or not, if not, the first equipment is determined to be in a to-be-paired state, and the first equipment generates and sends pairing request information to the power line based on the first random code.

The embodiment of the application also provides a pairing method of the air conditioner based on power line communication, wherein the air conditioner comprises the following steps: a first device and a second device respectively connected to the power lines; the method comprises the following steps:

the first device wirelessly receives a first random code, and the second device wirelessly receives a second random code;

the first device generates and transmits pairing request information to a power line based on the first random code, wherein the pairing request information comprises: a pairing request instruction, the first random code and the unique identification code of the first equipment;

the second device receiving the pairing request information based on the power line;

the second equipment determines that the first random code in the pairing request information is matched with the second random code, and stores the unique identification code of the identity of the first equipment;

the second device generates and transmits pairing feedback information to the power line, the pairing feedback information including: the pairing success instruction, the second random code and the identity unique identification code of the second equipment are sent;

the first device receiving the pairing feedback information based on the power line;

the second device determining that the first random code in the pairing request information matches the second random code, including: the second device determining that the first random code in the pairing request information is the same as the second random code;

In some embodiments, the method further comprises:

the first device wirelessly receives a pairing release instruction;

the second device receiving the pairing release request information based on the power line;

the second equipment sends pairing release feedback information to the power line based on the pairing release request information and deletes the stored unique identification code of the first equipment; the pairing release feedback information includes: a pairing release completion instruction, the unique identification code of the second device and the unique identification code of the first device;

and the first equipment receives the pairing release feedback information based on the power line, and deletes the stored unique identification code of the second equipment.

In some embodiments, the method further comprises:

the second device wirelessly receives a pairing release instruction;

the second device sends pairing release request information to the power line based on the pairing release instruction;

the first device receiving the pairing release request information based on the power line;

the first equipment sends pairing release feedback information to the power line based on the pairing release request information and deletes the stored unique identification code of the second equipment; the pairing release feedback information includes: a pairing release completion instruction, the unique identification code of the first device and the unique identification code of the second device;

and the second equipment receives the pairing release feedback information based on the power line and deletes the stored unique identification code of the first equipment.

The embodiment of the present application further provides an internal unit of an air conditioner, including:

a first wireless receiving module configured to wirelessly receive a first random code;

a first power line communication module configured to generate and transmit pairing request information to a power line based on the first random code, the pairing request information including: the pairing request instruction, the first random code and the unique identification code of the identity of the internal machine;

the first power line communication module is further configured to receive pairing feedback information from an external unit of an air conditioner based on the power line, the pairing feedback information including: the pairing success command, the second random code of the outdoor unit and the unique identification code of the identity of the outdoor unit;

the first power line communication module is further configured to store the unique identification code of the external unit if it is determined that the second random code in the pairing feedback information matches the first random code.

The embodiment of the present application further provides an outdoor unit of an air conditioner, including:

the second wireless receiving module is configured to wirelessly receive a second random code;

a second power line communication module configured to receive pairing request information from an indoor unit of an air conditioner based on a power line, the pairing request information including: the method comprises the steps that a pairing request instruction, a first random code of the internal unit and an identity unique identification code of the internal unit are sent;

the second power line communication module is further configured to determine that the first random code in the pairing request information is matched with the second random code, and store the unique identification code of the identity of the internal unit;

the second power line communication module is further configured to send pairing feedback information to the power line, the pairing feedback information including: the pairing success command, the second random code and the unique identification code of the external unit.

a first power line communication module configured to receive pairing request information from an external unit of an air conditioner based on a power line, the pairing request information including: the pairing request instruction, the second random code of the outdoor unit and the unique identification code of the identity of the outdoor unit;

the first power line communication module is further configured to store the unique identification code of the external unit if the second random code in the pairing request information is determined to be matched with the first random code;

the first power line communication module is further configured to send pairing feedback information to the power line, the pairing feedback information including: the pairing success command, the first random code and the unique identification code of the identity of the internal machine.

a second power line communication module configured to generate and transmit pairing request information to a power line based on the second random code, the pairing request information including: the pairing request instruction, the second random code and the unique identification code of the external unit;

the second power line communication module is further configured to receive pairing feedback information from an internal unit of an air conditioner based on the power line, the pairing feedback information including: the pairing success instruction, the first random code of the internal unit and the unique identification code of the identity of the internal unit;

the second power line communication module is further configured to store the unique identification code of the internal unit if it is determined that the first random code in the pairing feedback information matches the second random code.

The embodiment of the present application further provides an air conditioner, including: the wireless remote control system comprises at least one first device, at least one second device and a wireless remote controller, wherein the first device and the second device are both connected with a power line, and when the first device and the second device are configured to run a computer program, the steps of the method of the embodiment of the application are executed.

In some embodiments, the first device is an indoor unit, and correspondingly, the second device is an outdoor unit; alternatively, the first and second electrodes may be,

the first device is an external machine, and correspondingly, the second device is an internal machine.

The embodiment of the present application further provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the method in the embodiment of the present application are implemented.

According to the technical scheme, the pairing relation between the first equipment and the second equipment can be established based on the fact that the first random code wirelessly received by the first equipment and the second random code wirelessly received by the second equipment serve as pairing bases and the power line transmits pairing request information and pairing feedback information, and therefore pairing connection between the first equipment and the second equipment of the air conditioner can be achieved based on the power line without the help of extra pairing equipment, installation and debugging are simple, and the pairing cost of the first equipment and the second equipment of the air conditioner can be saved.

Drawings

Fig. 1 is a schematic flowchart illustrating a pairing method of an air conditioner based on power line communication according to an embodiment of the present application;

fig. 2 is a schematic flowchart illustrating a pairing method of air conditioners based on power line communication according to another embodiment of the present application;

fig. 3 is a schematic flowchart of a pairing method between an internal unit and an external unit of an air conditioner according to an application example of the present application;

FIG. 4 is a schematic diagram illustrating an exemplary process of pairing release based on power line communication for an air conditioner according to the present invention;

fig. 5 is a schematic structural diagram of an internal unit of an air conditioner according to an embodiment of the present application;

fig. 6 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an internal unit of an air conditioner according to an exemplary application of the present disclosure;

fig. 8 is a schematic structural view of an external unit of an air conditioner according to an exemplary embodiment of the present invention;

fig. 9 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The embodiment of the application provides a pairing method of an air conditioner based on Power Line Communication (PLC), wherein the air conditioner is used for adjusting the temperature, the humidity and the like of an environment where the air conditioner is located. The air conditioner can be an independent air conditioner with the indoor unit and the outdoor unit in one-to-one correspondence, and can also be a multi-split air conditioning unit, and the embodiment of the application is not particularly limited to this.

Here, the multi-split air conditioning unit is also commonly referred to as a "split-multiple" air conditioning unit, and refers to an air conditioning unit formed by connecting and controlling two or more air conditioning indoor units (i.e., indoor units) by one air conditioning outdoor unit (i.e., outdoor unit). For example: in a multi-split air conditioning unit, an air conditioning outdoor unit conveys a refrigerant (heating agent) to two or more air conditioning indoor units through a pipeline, and the air conditioning outdoor unit regulates and meets the temperature regulation requirement of the air conditioning indoor units by controlling the circulation amount of the refrigerant (heating agent) and the flow rate of the refrigerant (heating agent) entering the indoor units. And each air conditioner indoor unit can control the air conditioner outdoor unit through independent parameter setting so as to meet the requirements of different rooms on temperature and/or humidity.

It can be understood that the outdoor unit includes a compressor and a condenser, and the indoor unit includes: the outdoor unit is connected with the outdoor unit through a refrigerant pipeline, for example, the refrigerant pipeline may be a copper pipe or an aluminum pipe. Taking a refrigeration process as an example, a compressor compresses a gaseous refrigerant (such as freon) into a high-temperature high-pressure liquid refrigerant, and then sends the high-temperature high-pressure liquid refrigerant to a condenser for heat dissipation, so as to form a medium-temperature medium-pressure liquid refrigerant; the liquid refrigerant formed by the condenser enters the evaporator of the indoor unit through the refrigerant pipeline, the liquid refrigerant is gasified due to sudden increase of space and reduction of pressure, and a large amount of heat can be absorbed in the process of converting liquid into gas, so that the evaporator can be cooled, and when the fan of the indoor unit blows the indoor air from the evaporator, the fan of the indoor unit blows out cold air.

In the working process, the outdoor unit and the indoor unit need to communicate, for example, the indoor unit sends a control instruction to the outdoor unit to control the operation mode of the outdoor unit (for example, starting a compressor, etc.), and the outdoor unit sends the self operation state, the environmental parameters, the fault codes, etc. to the indoor unit. Therefore, no matter the air conditioner is an independent air conditioner or a multi-split air conditioning unit, if the communication between the internal unit and the external unit is realized by adopting the PLC, the pairing relation between the internal unit and the external unit needs to be established, so that the information transmission requirement between the internal unit and the external unit is met.

Based on this, the embodiment of the present application provides a pairing method for an air conditioner based on power line communication, where the air conditioner includes: a first device and a second device respectively connected to the power line, where the first device may be an internal unit and, correspondingly, the second device is an external unit; alternatively, the first device is an internal machine and, correspondingly, the second device is an external machine.

As shown in fig. 1, a pairing method of an air conditioner based on power line communication according to an embodiment of the present application includes:

step 101, a first device wirelessly receives a first random code.

Here, the first device is provided with a first wireless receiving module, and accordingly, the second device may also be provided with a second wireless receiving module, and the first wireless receiving module may receive a first random code sent by the wireless remote controller. In this embodiment, a first random code of a first device and a second random code of a second device are used as a pairing basis.

102, the first device generates and sends pairing request information to the power line based on the first random code, wherein the pairing request information includes: the pairing request instruction, the first random code and the unique identification code of the first equipment.

Here, the first device couples the pairing request information onto the power line so that the second device can receive the pairing request information based on the power line.

Exemplarily, if the second device determines that the first random code carried by the pairing request information is matched with the second random code of the second device, the second device stores the unique identification code of the identity of the first device, so as to establish a pairing relationship with the first device on the side of the second device; the second device also generates and transmits pairing feedback information to the power line, and the pairing feedback information may include: the pairing success instruction, the second random code of the second equipment and the identity unique identification code of the second equipment.

103, the first device receives pairing feedback information from the second device based on the power line, wherein the pairing feedback information comprises: the pairing success instruction, the second random code of the second equipment and the identity unique identification code of the second equipment.

And 104, the first equipment determines that the second random code in the pairing feedback information is matched with the first random code, and stores the unique identification code of the identity of the second equipment.

Here, if the first device determines that the second random code in the pairing feedback information matches the first random code of the first device, the first device stores the identity unique identification code of the second device, so that the pairing relationship with the second device is established on the first device side.

According to the pairing method, the pairing request information and the pairing feedback information are transmitted based on the power line based on the first random code of the first device and the second random code of the second device as pairing bases, the pairing relation between the first device and the second device is established, accordingly, the pairing connection between the first device and the second device of the air conditioner can be achieved based on the power line, extra pairing devices are not needed, the installation and debugging are simple, and the pairing cost of the first device and the second device of the air conditioner can be saved.

In some embodiments, the pairing method further comprises:

the first equipment acquires a pairing release instruction;

the first device receives pairing release feedback information from the second device based on the power line, the pairing release feedback information including: the pairing release completion instruction, the unique identification code of the second device and the unique identification code of the first device;

and the first device deletes the stored identity unique identification code of the second device based on the pairing release feedback information.

Here, if the user finds that the first device is paired with the second device incorrectly, a pairing release instruction may be transmitted to the first device or the second device via the wireless remote controller, for example, the pairing release instruction is transmitted to the first device.

The first device sends pairing release request information to the power line based on the pairing release instruction, the second device receives the pairing release request information based on the power line, if the pairing release request information is determined to carry the unique identity code of the second device, pairing release feedback information is sent to the power line based on the pairing release request information, the stored unique identity code of the first device is deleted, and therefore the pairing relation with the first device is released. And the first equipment receives the pairing release feedback information based on the power line, and deletes the stored unique identification code of the second equipment if the pairing release feedback information is determined to carry the unique identification code of the first equipment, so that the pairing relation with the second equipment is released. Therefore, the pairing relationship between the first equipment and the second equipment can be quickly released based on the pairing release instruction acquired by the first equipment, and the operation is simple and convenient.

In some embodiments, the wireless remote controller may transmit a pairing release instruction to the second device, and accordingly, the pairing method further includes:

the first device sends pairing release feedback information to the power line based on the pairing release request information, wherein the pairing release feedback information includes: the pairing release completion instruction, the unique identification code of the first device and the unique identification code of the second device;

the first device deletes the stored identity unique identification code of the second device.

Here, if the user finds that the first device is paired with the second device incorrectly, a pairing release instruction may be transmitted to the second device via the wireless remote controller.

The second equipment sends pairing release request information to the power line based on the pairing release instruction, the first equipment receives the pairing release request information based on the power line, if the pairing release request information is determined to carry the unique identity code of the first equipment, pairing release feedback information is sent to the power line based on the pairing release request information, the stored unique identity code of the second equipment is deleted, and therefore the pairing relation with the second equipment is released. And the second equipment receives the pairing release feedback information based on the power line, and deletes the stored unique identification code of the first equipment if the pairing release feedback information is determined to carry the unique identification code of the second equipment, so that the pairing relation with the first equipment is released. Therefore, the pairing relationship between the first equipment and the second equipment can be quickly released based on the pairing release instruction acquired by the second equipment, and the operation is simple and convenient.

Illustratively, considering that there are numerous devices in the power line, to avoid pairing confusion between different air conditioners, the first random code is the same as the second random code; the first device determines that a second random code in the pairing feedback information matches the first random code, and includes: the first device determines that the second random code in the pairing feedback information is the same as the first random code.

In some embodiments, before the first device generates and transmits pairing request information to the power line based on the first random code, the pairing method may further include:

the first equipment judges whether the identity unique identification code of the paired equipment is stored locally or not, if not, the first equipment is determined to be in a to-be-paired state, and generates and sends pairing request information to the power line based on the first random code.

Therefore, the first equipment can generate and send pairing request information to the power line based on the first random code only in a state to be paired, information transmitted in the power line can be effectively reduced, and accurate pairing of the air conditioner is facilitated.

The embodiment of the application also provides a pairing method of the air conditioner based on power line communication, as shown in fig. 2, the method includes:

step 201, a first device wirelessly receives a first random code, and a second device wirelessly receives a second random code.

Step 202, the first device generates and sends pairing request information to the power line based on the first random code, wherein the pairing request information includes: the pairing request instruction, the first random code and the unique identification code of the first equipment.

In step 203, the second device receives pairing request information based on the power line.

And step 204, the second device determines that the first random code in the pairing request information is matched with the second random code, and stores the unique identification code of the identity of the first device.

Step 205, the second device generates and sends pairing feedback information to the power line, where the pairing feedback information includes: the pairing success instruction, the second random code and the identity unique identification code of the second equipment.

In step 206, the first device receives pairing feedback information based on the power line.

Step 207, the first device determines that the second random code in the pairing feedback information is matched with the first random code, and stores the unique identification code of the identity of the second device.

According to the pairing method, the air conditioner can be used as a pairing basis based on the first random code of the first device and the second random code of the second device, and the pairing relation between the first device and the second device is established based on the power line transmission pairing request information and the pairing feedback information, so that the pairing connection between the first device and the second device of the air conditioner can be achieved based on the power line, the additional pairing device is not needed, the installation and debugging are simple, and the pairing cost of the first device and the second device of the air conditioner can be saved.

The pairing method is exemplified by taking the first device as an internal unit of the air conditioner and the second device as an external unit of the air conditioner. As shown in fig. 3, the method includes:

step 301, an indoor unit to be paired in the air conditioner wirelessly receives a first random code, and an outdoor unit to be paired wirelessly receives a second random code.

Here, the random codes may be transmitted to the indoor unit and the outdoor unit to be paired in the air conditioner by using a wireless remote controller. For example, the indoor unit and the outdoor unit of the air conditioner may be separately provided with a wireless remote controller or share the wireless remote controller. In order to save cost, the inner machine and the outer machine of the air conditioner can share the wireless remote controller of the inner machine. It can be understood that the inner unit and the outer unit are both provided with wireless receiving modules, and the wireless receiving modules correspond to the wireless transmitting modules of the wireless remote controller and are used for receiving information sent by the wireless remote controller. Illustratively, the wireless receiving module and the wireless transmitting module can transmit information based on infrared rays, i.e. the wireless Remote controller can be an infrared Remote controller (IR Remote Control).

For example, for an air conditioner that is not yet paired, after the air conditioner is powered on, a user may send a first random code to an internal unit of the air conditioner and send a second random code to an external unit of the air conditioner via a wireless remote controller.

Here, the first random code and the second random code are used as pairing bases between the internal unit and the external unit, and may be set based on a pairing policy, so that the first random code of the internal unit and the second random code of the external unit having a pairing relationship are matched with each other.

Illustratively, considering that the number of devices in the power line is large, in order to avoid pairing errors between the indoor unit and the outdoor unit of different air conditioners, the first random code sent to the indoor unit of the air conditioner is the same as the second random code sent to the outdoor unit of the air conditioner, matching of the first random code and the second random code means that the first random code and the second random code are the same, and correspondingly, matching of the second random code and the first random code means that the second random code and the first random code are the same.

Step 302, the internal unit generates and sends pairing request information to the power line based on the first random code, wherein the pairing request information includes: the pairing request instruction, the first random code and the unique identification code of the identity of the internal unit.

It will be appreciated that both the inner and outer units are connected to the power line. For example, the inner unit is connected to the power line via a first power line communication module, and the outer unit is connected to the power line via a second power line communication module.

The internal machine generates pairing request information based on the first random code, and the first power line communication module sends the pairing request information to the power line. The pairing request information includes: the pairing request instruction, the first random code and the unique identification code of the identity of the internal unit. Here, the unique identification code of the internal unit may be a MAC (Media Access Control) address of the internal unit or an SN (Serial Number) code of a full network unique identification of the internal unit. Illustratively, the unique identification code of the indoor unit may be a MAC address of the indoor unit.

For example, the internal unit may automatically generate the pairing request information after receiving the first random code, or the internal unit may trigger generation of the pairing request information based on a pairing request instruction sent by the wireless remote controller. For example, the wireless remote controller may send a first random code to the internal unit, and the internal unit determines whether the first random code is in a preset encoding format for generating the pairing request information, and if so, generates and sends the pairing request information to the power line based on the first random code. Optionally, the internal unit may determine whether the internal unit is in a to-be-paired state based on whether the paired unique identification code of the external unit is stored, for example, the internal unit may preset a paired device address storage unit that stores the paired unique identification code of the external unit, and if the paired device address storage unit is empty, the internal unit may determine that the first random code is in a preset encoding format based on the received first random code, and then generate and send pairing request information to the power line. For another example, the wireless remote controller may further send the first random code and the pairing request instruction respectively or synchronously send the first random code and the pairing request instruction to the internal unit, and the internal unit generates and sends the pairing request information to the power line based on the received pairing request instruction and the first random code. For example, the internal unit receives the pairing request instruction, and if it is determined that the pairing address storage unit is not empty (that is, the internal unit stores the unique identification code of the paired external unit), the pairing address storage unit is emptied, and the pairing address storage unit is updated based on the unique identification code of the newly paired external unit.

In step 303, the external unit receives pairing request information based on the power line.

The external unit may receive pairing request information transmitted by the power line via the second power line communication module.

And step 304, the external machine determines that the first random code in the pairing request information is matched with the second random code, and stores the unique identification code of the identity of the internal machine.

Illustratively, the first random code is the same as the second random code; the external unit determines that the first random code in the pairing request information is matched with the second random code, and the method comprises the following steps: and the external machine determines that the first random code in the pairing request information is the same as the second random code received by the external machine, determines that the pairing request information is the pairing request information required to be received by the external machine, and stores the unique identification code of the identity of the internal machine, for example, the unique identification code is stored in a pairing equipment address storage unit preset by the external machine side, so that the pairing relation with the internal machine is established.

And if the external machine compares the received second random code with the first random code in the pairing request information and determines that the second random code and the first random code are different, the pairing request information is judged to be the pairing request information which does not need to be received by the external machine, and the pairing request information is discarded. Therefore, the external machine can judge whether the internal machine sending the pairing request needs to be paired or not based on whether the second random code received by the external machine is matched with the first random code in the pairing request information or not, and only establishes a pairing relation with the internal machine needing to be paired.

Step 305, the external unit generates and sends pairing feedback information to the power line, where the pairing feedback information includes: the pairing success command, the second random code and the unique identification code of the identity of the outdoor unit.

Here, if the external unit determines that the pairing request information is pairing request information that the external unit needs to receive, the external unit further generates and sends pairing feedback information to the power line, where the pairing feedback information includes: the pairing success command, the second random code and the unique identification code of the identity of the outdoor unit.

Here, the identity unique identification code of the outdoor unit may be a MAC address of the outdoor unit or an SN code of a full-network unique identification of the outdoor unit. Illustratively, the identity unique identification code of the outdoor unit may be the MAC address of the outdoor unit.

And step 306, the internal unit receives pairing feedback information based on the power line.

The internal unit can receive pairing feedback information transmitted by the power line through the first power line communication module.

And 307, the internal unit determines that the second random code in the pairing feedback information is matched with the first random code, and stores the unique identification code of the external unit.

For example, the indoor unit may compare the received first random code with a second random code in the pairing feedback information, and if it is determined that the received first random code and the second random code are the same, determine that the pairing feedback information is pairing feedback information that the indoor unit needs to receive, and store the unique identification code of the identity of the outdoor unit in the pairing feedback information, for example, store the unique identification code to a pairing device address storage unit preset at the indoor unit side, thereby establishing a pairing relationship with the outdoor unit.

And if the internal machine compares the received first random code with a second random code in the pairing feedback information and determines that the first random code and the second random code are different, the pairing feedback information is judged to be pairing feedback information which does not need to be received, and the pairing feedback information is discarded. Therefore, the indoor unit can judge whether the indoor unit needs to be paired with the outdoor unit sending the pairing feedback or not based on whether the first random code received by the indoor unit is matched with the second random code in the pairing feedback information or not, and accordingly the pairing relation is only established with the outdoor unit needing to be paired.

As can be known from the above description, in the pairing method of the embodiment of the present application, the first random code wirelessly received by the internal unit and the second random code wirelessly received by the external unit are used as a pairing basis, the internal unit transmits pairing request information to the external unit based on the power line, and the external unit establishes a pairing relationship with the internal unit to be paired based on the pairing request information; the outer machine transmits pairing feedback information to the inner machine based on the power line, the inner machine establishes a pairing relation with the outer machine to be paired based on the pairing feedback information, and then the pairing relation between the inner machine side and the outer machine and the pairing relation between the outer machine side and the inner machine are established, so that pairing connection between the inner machine and the outer machine of the air conditioner can be achieved based on the power line, extra pairing equipment is not needed, installation and debugging are simple, and pairing cost of the inner machine and the outer machine of the air conditioner can be saved. In addition, based on the first random code and the second random code as pairing bases, the problems that pairing is inflexible due to pairing based on the operation parameters (such as refrigerant system parameters) of the external unit and the internal unit in the related art and mispairing is easy to occur under the condition that the operation parameters of a plurality of air conditioning units are similar can be effectively avoided.

It can be understood that, for a multi-split air conditioning unit, an external unit can establish a pairing relationship with a plurality of internal units of the multi-split air conditioning unit, that is, the external unit side can store the unique identification codes of two or more internal units, and the internal unit side can store the corresponding unique identification codes of the external unit. After the pairing is completed, the air conditioner is powered on, and the indoor unit and the outdoor unit can communicate by using power lines based on the paired unique identification codes stored locally.

In practical applications, if a plurality of air conditioners are paired in a power line at the same time, a situation of pairing error between an internal unit and an external unit of different air conditioners may occur, or for a multi-split air conditioning unit, there is a need to release the paired pairing relationship due to replacement of the internal unit and the like. Based on this, in some embodiments, as shown in fig. 4, the pairing method further includes:

and step 401, the indoor unit wirelessly receives a pairing release instruction.

Here, the user can send a pairing release instruction to the internal unit that needs to release the pairing relationship via the wireless remote controller.

And 402, the internal unit sends pairing release request information to the power line based on the pairing release instruction.

Here, after the wireless receiving module of the internal unit receives the pairing-release instruction, the internal unit may transmit pairing-release request information to the power line based on the pairing-release instruction. The pairing-release request information may include: and the pairing removing instruction comprises the unique identification code of the outer machine and the unique identification code of the inner machine.

In step 403, the external unit receives pairing release request information based on the power line.

Here, the external unit may determine whether the pairing-release request information on the power line needs to be received by itself based on the unique identification code of its own identity, receive the pairing-release request information if the pairing-release request information carries the unique identification code of its own identity, and discard the pairing-release request information if the pairing-release request information does not carry the unique identification code of its own identity.

Step 404, the external machine sends pairing removal feedback information to the power line based on the pairing removal request information and deletes the stored unique identification code of the identity of the internal machine; the pairing release feedback information includes: the pairing removal completion instruction, the unique identification code of the identity of the internal unit and the unique identification code of the identity of the external unit.

Here, the external unit may send pairing-release feedback information to the power line based on the received pairing-release request information, and delete the unique identification code of the identity of the internal unit stored in the external unit, thereby releasing the pairing relationship with the internal unit.

And 405, the internal unit receives pairing release feedback information based on the power line, and deletes the stored unique identification code of the external unit.

Here, if the internal unit determines that the pairing-release feedback information on the power line carries the unique identification code of its own identity, the stored unique identification code of the external unit is deleted based on the pairing-release feedback information, so that the pairing relationship with the external unit is released. Thus, the process of canceling the pairing relationship between the indoor unit and the outdoor unit based on the pairing-release request information of the indoor unit is completed.

It can be understood that, in other embodiments, if the pairing between the external unit and the internal unit is found to be wrong, the external unit may initiate a pairing-release request, that is, send a pairing-release instruction to the external unit via the wireless remote controller, send pairing-release request information to the power line by the external unit, feed back pairing-release feedback information to the power line by the internal unit based on the pairing-release request information, delete the unique identification code of the paired external unit on the internal unit side, and release the pairing relationship with the external unit; the outer machine deletes the unique identity identification code of the paired inner machine based on the pairing release feedback information transmitted by the power line, and releases the pairing relationship with the inner machine, which may specifically refer to the implementation process of fig. 4 and is not described herein again.

Therefore, the established pairing relation can be released on the inner machine side and the outer machine side based on the pairing release instruction sent by the wireless remote controller, one-key release of the pairing relation between the outer machine side and the inner machine side which needs to be released is achieved, and the operation is simple and convenient.

It should be noted that, in other embodiments, the external unit may also send the pairing request information, so as to establish a pairing relationship between the internal unit and the external unit, and a specific implementation process is similar to the pairing process in which the internal unit sends the pairing request information, and is not described herein again.

The embodiment of the present application further provides an internal unit of an air conditioner, as shown in fig. 5, the internal unit includes: a first wireless receiving module 501 and a first power line communication module 502, wherein the first wireless receiving module 501 is configured to wirelessly receive a first random code; the first power line communication module 502 is configured to generate and transmit pairing request information to the power line based on the first random code, where the pairing request information includes: the pairing request instruction, the first random code and the unique identity identification code of the internal unit; the first power line communication module 502 is further configured to receive pairing feedback information from an external unit of the air conditioner based on the power line, the pairing feedback information including: the pairing success command, the second random code of the external unit and the unique identification code of the identity of the external unit; the first power line communication module 502 is further configured to determine that the second random code in the pairing feedback information is matched with the first random code, store the unique identification code of the external unit, and establish a pairing relationship with the external unit.

Illustratively, the first random code is the same as the second random code; the first power line communication module 502 determines that the second random code in the pairing feedback information matches the first random code, including: and determining that the second random code in the pairing feedback information is the same as the first random code.

Illustratively, the first wireless receiving module 501 is further configured to wirelessly receive a pairing-release instruction;

the first powerline communication module 502 is further configured to:

transmitting pairing release request information to the power line based on the pairing release instruction;

receiving pairing release feedback information from an external unit based on a power line, wherein the pairing release feedback information comprises: the pairing removal completion instruction, the unique identification code of the identity of the internal machine and the unique identification code of the identity of the external machine;

and deleting the stored unique identification code of the external unit based on the pairing release feedback information.

In some embodiments, the first power line communication module 502 is further configured to:

receiving pairing release request information from an external unit based on a power line;

sending pairing release feedback information to the power line based on the pairing release request information, the pairing release feedback information including: the pairing removal completion instruction, the unique identification code of the identity of the internal machine and the unique identification code of the identity of the external machine;

and deleting the stored identity unique identification code of the external unit.

Illustratively, the first power line communication module 502 is further configured to: and judging whether the matched unique identification code of the external unit is locally stored or not, if not, determining that the internal unit is in a to-be-matched state, and generating and sending pairing request information to the power line based on the first random code.

The embodiment of the present application further provides an outdoor unit of an air conditioner, as shown in fig. 6, the outdoor unit includes: a second wireless receiving module 601 and a second power line communication module 602, wherein the second wireless receiving module 601 is configured to wirelessly receive a second random code; the second power line communication module 602 is configured to receive pairing request information from an indoor unit of the air conditioner based on the power line, the pairing request information including: the method comprises the steps that a pairing request instruction, a first random code of the internal unit and an identity unique identification code of the internal unit are sent; the second power line communication module 602 is further configured to determine that the first random code in the pairing request information is matched with the second random code, store the unique identification code of the identity of the indoor unit, and establish a pairing relationship with the indoor unit; the second powerline communication module 602 is further configured to send pairing feedback information to the powerline, the pairing feedback information including: the pairing success command, the second random code and the unique identification code of the identity of the outdoor unit.

Illustratively, the first random code is the same as the second random code; the second plc module 602 determines that the first random code in the pairing request message matches the second random code, including: and determining that the first random code in the pairing request information is the same as the second random code.

Illustratively, the second dialing address identifying module 601 is further configured to wirelessly receive a pairing-disarm instruction;

the second powerline communication module 602 is further configured to:

receiving pairing release feedback information from the internal unit based on the power line, the pairing release feedback information including: the pairing removal completion instruction, the unique identification code of the identity of the internal machine and the unique identification code of the identity of the external machine;

and deleting the stored unique identification code of the identity of the internal machine based on the pairing release feedback information.

In some embodiments, the second powerline communication module 602 is further configured to:

receiving pairing release request information from the internal unit based on the power line;

and deleting the stored unique identification code of the identity of the internal machine.

In other embodiments, the second wireless receiving module 601 is configured to wirelessly receive the second random code; a second power line communication module 602 configured to generate and send pairing request information to the power line based on the second random code, the pairing request information including: the pairing request instruction, the second random code and the unique identification code of the identity of the outdoor unit; the second power line communication module 602 is further configured to receive pairing feedback information from the indoor unit of the air conditioner based on the power line, where the pairing feedback information includes: the pairing success command, the first random code of the internal unit and the unique identification code of the identity of the internal unit; the second power line communication module 602 is further configured to determine that the first random code in the pairing feedback information is matched with the second random code, store the unique identification code of the identity of the indoor unit, and establish a pairing relationship with the indoor unit.

Illustratively, the first wireless receiving module 501 is configured to wirelessly receive the first random code; the first power line communication module 502 is configured to receive pairing request information from an external unit of an air conditioner based on a power line, the pairing request information including: the pairing request instruction, a second random code of the outdoor unit and the unique identification code of the identity of the outdoor unit; the first power line communication module 502 is further configured to determine that the second random code in the pairing request information is matched with the first random code, store the unique identification code of the identity of the external unit, and establish a pairing relationship with the external unit; the first power line communication module 502 is further configured to send pairing feedback information to the power line, where the pairing feedback information includes: the pairing success command, the first random code and the unique identification code of the identity of the internal machine.

The following describes an example of an air conditioner with reference to an application example.

As shown in fig. 7, in the present application example, the indoor unit of the air conditioner includes: the air conditioner comprises an inner machine main control unit, a display module and a first PLC module (namely the first power line communication module), wherein the inner machine main control unit is a main control board of the inner machine, and the display module can be a display screen, a touch screen and the like connected with the inner machine main control unit and can display working parameters of the air conditioner; the indoor unit may further include: and a first infrared receiving module (equivalent to the first wireless receiving module) connected to the main control of the internal unit, where the first infrared receiving module may be disposed at the display module. The first PLC module may include: the device comprises a first infrared information acquisition unit, a first pairing identification code unit, a first pairing equipment address storage unit, a first PLC MCU (microprocessor) and a first coupling module. For example, the information received by the first infrared receiving module may be transmitted to the internal main control, and the first infrared information obtaining unit may obtain the information received by the first infrared receiving module from the internal main control, for example, the aforementioned first random code or the pairing release instruction. The first PLC MCU may generate pairing request information based on the first random code; the first coupling module can couple the pairing request information to the power line and extract information transmitted by the power line; the first PLC MCU can receive pairing feedback information transmitted by the power line; for example, the first PLC MCU may optimally encode, modulate, and couple the pairing request information to the power line via the first coupling module for transmission over the power line based on the two-wire differential signal. The first PLC MCU can demodulate and decode the pairing feedback information extracted by the first coupling module and transmit the decoded pairing feedback information to the first pairing identification unit, and the first pairing identification code unit can judge whether a second random code in the pairing feedback information is matched with the first random code; the first PLC MCU can store the MAC address of the external unit carried in the pairing feedback information to the first pairing equipment address storage unit when the first pairing identification code unit determines that the pairing feedback information is matched.

As shown in fig. 8, in the present application example, the outdoor unit of the air conditioner includes: the outdoor unit main control module is a second PLC module (namely the second power line communication module), wherein the outdoor unit main control module is a main control board of the outdoor unit; the outer unit may further include: a second infrared receiving module (equivalent to the aforementioned second wireless receiving module), which can be disposed in the second PLC module. The second PLC module may include: the device comprises a second infrared information acquisition unit, a second pairing identification code unit, a second pairing equipment address storage unit, a second PLC MCU (microprocessor) and a second coupling module. For example, the information received by the second infrared receiving module may be transmitted to the second infrared information obtaining unit, for example, the aforementioned second random code or the pairing release instruction. The second coupling module may extract information (e.g., pairing request information) conveyed by the power line and couple the information (e.g., pairing feedback information) to the power line; the second PLC MCU can receive pairing request information transmitted by the power line; illustratively, the second PLC MCU may demodulate and decode the pairing request information extracted by the second coupling module, and transmit the decoded pairing request information to the second pairing identification unit, and the second pairing identification unit may determine whether the first random code in the pairing request information matches the second random code; the second PLC MCU can store the MAC address of the internal machine carried in the pairing request information to a second pairing equipment address storage unit when the second pairing identification code unit determines that the pairing request information is matched; the second PLC MCU also generates pairing feedback information, and the second PLC MCU can optimally encode and modulate the pairing feedback information into a differential signal and is coupled to the power line through the second coupling module.

An embodiment of the present application further provides an air conditioner, as shown in fig. 9, the air conditioner including: the method includes an external unit 901, at least one internal unit 902, and a wireless remote controller (not shown in the figure), where the external unit 901 and the internal unit 902 are connected via a power line 903, and when the external unit 901 and the internal unit 902 are configured to run a computer program, the steps of the method in the foregoing embodiment of the present application are executed.

In an exemplary embodiment, the present application further provides a storage medium, that is, a computer storage medium, which may be specifically a computer readable storage medium, for example, a memory including a computer program stored therein, where the computer program is executable by a processor of an air conditioner to perform the steps described in the method of the present application. The computer-readable storage medium may be a Memory such as a ROM (Read Only Memory), a PROM (Programmable Read-Only Memory), an EPROM (Erasable Programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), a Flash Memory, a magnetic surface Memory, an optical disk, or a CD-ROM (Compact Disc Read-Only Memory).

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The technical means described in the embodiments of the present application may be arbitrarily combined without conflict.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A pairing method of an air conditioner based on power line communication is characterized in that the air conditioner comprises the following steps: a first device and a second device respectively connected to the power lines; the method comprises the following steps:

the first device wirelessly receives a first random code;

2. The method of claim 1, further comprising:

the first device wirelessly receives a pairing release instruction;

3. The method of claim 1, further comprising:

4. The method of claim 1, wherein the first random code is the same as the second random code;

5. The method of claim 1, wherein before the first device generates and sends pairing request information to the power line based on the first random code, the method further comprises:

6. A pairing method of an air conditioner based on power line communication is characterized in that the air conditioner comprises the following steps: a first device and a second device respectively connected to the power lines; the method comprises the following steps:

7. The method of claim 6, wherein the first random code is the same as the second random code;

8. The method of claim 6, further comprising:

the first device wirelessly receives a pairing release instruction;

9. The method of claim 6, further comprising:

the second device wirelessly receives a pairing release instruction;

10. An indoor unit of an air conditioner, comprising:

11. An outdoor unit of an air conditioner, comprising:

12. An indoor unit of an air conditioner, comprising:

13. An outdoor unit of an air conditioner, comprising:

14. An air conditioner, comprising: at least one first device, at least one second device and a wireless remote control, the first device and the second device being connected to a power line, wherein the first device and the second device are configured to perform the steps of the method according to any one of claims 6 to 9 when running a computer program.

15. The air conditioner according to claim 14,

the first equipment is an internal machine, and correspondingly, the second equipment is an external machine; alternatively, the first and second electrodes may be,

16. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method of any one of claims 1 to 9.