CN113531792A

CN113531792A - Communication mode switching method of air conditioner, air conditioner and storage medium

Info

Publication number: CN113531792A
Application number: CN202110850084.8A
Authority: CN
Inventors: 郑成立
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-22

Abstract

The invention provides a communication mode switching method of an air conditioner, the air conditioner and a storage medium, wherein the air conditioner comprises an indoor unit, an outdoor unit, a power line for carrying out carrier communication between the indoor unit and the outdoor unit and a refrigerant pipe for carrying out sound wave communication between the indoor unit and the outdoor unit; the method comprises the following steps: carrying out communication detection on a power line between the indoor unit and the outdoor unit; and when the detection result is a communication fault, controlling the indoor unit and the outdoor unit to perform sound wave communication through the refrigerant pipe. Therefore, the air conditioner can identify whether the power line carrier communication mode has a fault, when the power line carrier communication mode has the fault due to the interference of the household electrical appliance, the power line carrier communication mode can be switched to the refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit can keep communication through the refrigerant pipe sound wave communication mode, and the refrigerant pipe sound wave communication mode is less in the interference of the household electrical appliance, so that the communication stability of the air conditioner can be improved, and the normal operation is ensured.

Description

Communication mode switching method of air conditioner, air conditioner and storage medium

Technical Field

The present invention relates to the field of air conditioners, and in particular, to a communication mode switching method for an air conditioner, and a computer-readable storage medium.

Background

At present, for an existing air conditioner, a PLC (Power Line Communication) technology is often adopted to realize Communication between an indoor unit and an outdoor unit, but since Communication signals of the PLC technology are easily interfered by household appliances in a Power grid, a Communication failure may occur, thereby affecting normal operation of the air conditioner.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a communication mode switching method of an air conditioner, the air conditioner and a computer readable storage medium, which can switch the communication mode when the power line carrier communication mode has a fault, thereby improving the communication stability of the air conditioner.

In a first aspect, an embodiment of the present invention provides a communication mode switching method for an air conditioner, where the air conditioner includes an indoor unit, an outdoor unit, a power line for performing carrier communication between the indoor unit and the outdoor unit, and a refrigerant pipe for performing sound wave communication between the indoor unit and the outdoor unit;

the method comprises the following steps:

performing communication detection on the power line between the indoor unit and the outdoor unit;

and when the detection result is a communication fault, controlling the indoor unit and the outdoor unit to carry out sound wave communication through the refrigerant pipe.

The communication mode switching method of the air conditioner provided by the embodiment of the invention at least has the following beneficial effects: firstly, the air conditioner of the embodiment of the invention can carry out communication detection on the power line between the indoor unit and the outdoor unit, and when the detection result shows that the communication fault exists, namely the communication fault exists in the power line carrier communication mode between the indoor unit and the outdoor unit, the air conditioner of the embodiment of the invention can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode to control the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe. According to the technical scheme of the embodiment of the invention, the air conditioner can identify whether the power line carrier communication mode has a fault, when the power line carrier communication mode has the fault due to the interference of household appliances in a power grid, the air conditioner can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit can keep communication through the refrigerant pipe sound wave communication mode, and the refrigerant pipe sound wave communication mode is less in interference of the household appliances, so that the communication stability of the air conditioner can be improved, and the normal operation of the air conditioner is ensured.

According to some embodiments of the present invention, after the controlling the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe, the method further includes:

performing communication detection on the refrigerant pipe between the indoor unit and the outdoor unit;

and when the detection result is the communication fault, pushing communication fault information.

According to some embodiments of the invention, the performing communication detection comprises at least one of:

judging whether the indoor unit receives the information transmitted by the outdoor unit, and determining that the detection result is a communication fault when the indoor unit does not receive the information transmitted by the outdoor unit;

and judging whether the outdoor unit receives the information transmitted by the indoor unit, and determining that the detection result is a communication fault when the outdoor unit does not receive the information transmitted by the indoor unit.

According to some embodiments of the present invention, when the performing of the communication detection includes that the indoor unit does not receive the information transmitted by the outdoor unit, determining that a detection result is a communication failure; when the indoor unit does not receive the information transmitted by the outdoor unit, determining that the detection result is a communication fault, wherein the detection result comprises one of the following steps:

the indoor unit sends information to the outdoor unit, and when the indoor unit does not receive reply information transmitted by the outdoor unit within a time length threshold value, a detection result is determined to be a communication fault;

and the indoor unit repeatedly sends information to the outdoor unit, and when the retransmission times are larger than or equal to a time threshold value and the indoor unit does not receive reply information transmitted by the outdoor unit, the detection result is determined to be a communication fault.

According to some embodiments of the present invention, when the performing of the communication detection includes that the outdoor unit does not receive the information transmitted by the indoor unit, determining that a detection result is a communication failure; when the outdoor unit does not receive the information transmitted by the indoor unit, determining that the detection result is a communication fault, wherein the detection result comprises one of the following steps:

the outdoor unit sends information to the indoor unit, and when the outdoor unit does not receive reply information transmitted by the indoor unit within a time length threshold value, a detection result is determined to be a communication fault;

and the outdoor unit repeatedly sends information to the indoor unit, and when the retransmission times are greater than or equal to a time threshold value and the outdoor unit does not receive reply information transmitted by the indoor unit, the detection result is determined to be a communication fault.

According to some embodiments of the present invention, the indoor unit includes an indoor main control module and a central coordinator module, the outdoor unit includes an outdoor main control module and a site module, and the indoor main control module is connected to the outdoor main control module through the central coordinator module, the power line, and the site module;

the communication detection of the power line between the indoor unit and the outdoor unit includes at least one of:

the indoor main control module sends information to the outdoor main control module sequentially through the central coordinator module, the power line and the station module, and judges whether the indoor main control module receives reply information transmitted by the outdoor main control module; when the indoor main control module does not receive reply information from the outdoor unit, determining that the carrier communication between the indoor main control module and the outdoor main control module has a fault;

the outdoor main control module sends information to the indoor main control module through the station module, the power line and the central coordinator module in sequence, and judges whether the outdoor main control module receives reply information transmitted by the indoor main control module; and when the outdoor main control module does not receive reply information from the indoor unit, determining that the carrier communication between the outdoor main control module and the indoor main control module has a fault.

According to some embodiments of the present invention, the indoor unit includes an indoor main control module and an indoor transduction module, the outdoor unit includes an outdoor main control module and an outdoor transduction module, and the indoor main control module is connected to the outdoor main control module through the indoor transduction module, the refrigerant pipe, and the outdoor transduction module;

the communication detection of the refrigerant pipe between the indoor unit and the outdoor unit includes at least one of the following:

the indoor main control module sends information to the outdoor main control module through the indoor energy conversion module, the refrigerant pipe and the outdoor energy conversion module in sequence, and judges whether the indoor main control module receives reply information transmitted by the outdoor main control module; when the indoor main control module does not receive reply information from the outdoor unit, determining that the sound wave communication between the indoor main control module and the outdoor main control module has a fault;

the outdoor main control module sends information to the indoor main control module through the outdoor energy conversion module, the refrigerant pipe and the indoor energy conversion module in sequence, and judges whether the outdoor main control module receives reply information transmitted by the indoor main control module; and when the outdoor main control module does not receive reply information from the indoor unit, determining that the sound wave communication between the outdoor main control module and the indoor main control module has a fault.

According to some embodiments of the present invention, after the detecting of the communication of the refrigerant pipe between the indoor unit and the outdoor unit, the method further includes at least one of:

when the detection result is that the communication is normal, the indoor unit sends a detection signal to the outdoor unit through the power line, and when the indoor unit receives a feedback signal based on the detection signal from the outdoor unit through the power line, the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe is switched to the carrier communication through the power line;

and when the outdoor unit receives a feedback signal based on the detection signal from the indoor unit through the power line, the outdoor unit switches the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe to the carrier communication through the power line.

In a second aspect, an embodiment of the present invention provides an air conditioner, including: the indoor unit, the outdoor unit, the processor, the memory and the computer program which is stored on the memory and can run on the processor; wherein, a power line for performing carrier communication between the indoor unit and the outdoor unit and a refrigerant pipe for performing sound wave communication between the indoor unit and the outdoor unit are provided between the indoor unit and the outdoor unit, and the processor implements the communication mode switching method according to the first aspect when executing the computer program.

The air conditioner provided by the embodiment of the invention has at least the following beneficial effects: firstly, the air conditioner of the embodiment of the invention can carry out communication detection on the power line between the indoor unit and the outdoor unit, and when the detection result shows that the communication fault exists, namely the communication fault exists in the power line carrier communication mode between the indoor unit and the outdoor unit, the air conditioner of the embodiment of the invention can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode to control the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe. According to the technical scheme of the embodiment of the invention, the air conditioner can identify whether the power line carrier communication mode has a fault, when the power line carrier communication mode has the fault due to the interference of household appliances in a power grid, the air conditioner can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit can keep communication through the refrigerant pipe sound wave communication mode, and the refrigerant pipe sound wave communication mode is less in interference of the household appliances, so that the communication stability of the air conditioner can be improved, and the normal operation of the air conditioner is ensured.

In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores computer-executable instructions, where the computer-executable instructions are configured to execute the method for switching communication schemes according to the first aspect.

The computer-readable storage medium according to the embodiment of the invention has at least the following advantages: firstly, the air conditioner of the embodiment of the invention can carry out communication detection on the power line between the indoor unit and the outdoor unit, and when the detection result shows that the communication fault exists, namely the communication fault exists in the power line carrier communication mode between the indoor unit and the outdoor unit, the air conditioner of the embodiment of the invention can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode to control the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe. According to the technical scheme of the embodiment of the invention, the air conditioner can identify whether the power line carrier communication mode has a fault, when the power line carrier communication mode has the fault due to the interference of household appliances in a power grid, the air conditioner can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit can keep communication through the refrigerant pipe sound wave communication mode, and the refrigerant pipe sound wave communication mode is less in interference of the household appliances, so that the communication stability of the air conditioner can be improved, and the normal operation of the air conditioner is ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic block diagram of an indoor main control module for performing a communication mode switching method of an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic block diagram of an outdoor main control module for performing a communication mode switching method of an air conditioner according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a relationship between an indoor unit and an outdoor unit in a case of using a power line carrier communication method according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a relationship between indoor units and outdoor units in a case of using a refrigerant pipe acoustic communication method according to an embodiment of the present invention;

fig. 5 is a flowchart of a communication mode switching method of an air conditioner according to an embodiment of the present invention;

fig. 6 is a flowchart illustrating pushing communication failure information when a failure is detected in a refrigerant pipe acoustic wave communication manner according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating communication detection according to a manner of whether an indoor unit receives information transmitted from an outdoor unit according to an embodiment of the present invention;

fig. 8 is a flowchart of communication detection performed by an outdoor unit according to an embodiment of the present invention in a manner of determining whether information transmitted from an indoor unit is received by the outdoor unit;

fig. 9 is a flowchart of communication detection performed by an indoor unit according to an embodiment of the present invention, in a manner of determining whether an indoor unit receives information transmitted by an outdoor unit within a time threshold;

fig. 10 is a flowchart illustrating communication detection according to the number of retransmissions of indoor unit retransmission information to an outdoor unit according to an embodiment of the present invention;

fig. 11 is a flowchart of communication detection performed by an outdoor unit according to an embodiment of the present invention, in which the outdoor unit receives information transmitted by an indoor unit within a time threshold;

fig. 12 is a flowchart illustrating communication detection according to the number of retransmissions of outdoor unit retransmission information to indoor unit according to an embodiment of the present invention;

fig. 13 is a flowchart of communication detection performed by determining whether the indoor main control module receives information transmitted by the outdoor main control module according to an embodiment of the present invention;

fig. 14 is a flowchart of communication detection performed by determining whether the outdoor main control module receives information transmitted by the indoor main control module according to an embodiment of the present invention;

fig. 15 is a flowchart of communication detection performed by whether the indoor main control module receives information transmitted by the outdoor main control module according to another embodiment of the present invention;

fig. 16 is a flowchart of communication detection according to another embodiment of the present invention, wherein the outdoor main control module detects whether the information transmitted by the indoor main control module is received by the outdoor main control module;

fig. 17 is a flow chart of a resume to powerline carrier communication scheme provided by an embodiment of the present invention;

fig. 18 is a flow chart of a resume to powerline carrier communication scheme provided by another embodiment of the present invention;

fig. 19 is an overall flowchart of a communication mode switching method of an air conditioner according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the related art, the PLC technology has been widely applied to scenes such as intelligent meter reading, intelligent home, and intelligent building. For the application scenario of the household air conditioner, the PLC technology is often used to realize the communication between the indoor unit and the outdoor unit, but since the communication signal of the PLC technology is easily interfered by the household appliances in the power grid, such as the electromagnetic oven, the microwave oven, the blower, and other household appliances, the communication between the indoor unit and the outdoor unit may fail, thereby affecting the normal operation of the air conditioner.

Based on the above situation, embodiments of the present invention provide an air conditioner communication mode switching method, an air conditioner, and a computer-readable storage medium.

The air conditioner comprises an indoor unit, an outdoor unit, a power line and a refrigerant pipe, wherein the power line is used for carrying out carrier communication between the indoor unit and the outdoor unit, and the refrigerant pipe is used for carrying out sound wave communication between the indoor unit and the outdoor unit.

The communication mode switching method of the air conditioner in the embodiment of the invention comprises the following steps of: carrying out communication detection on a power line between an internal machine and an external machine; and when the detection result is a communication fault, controlling the internal and external machines to carry out sound wave communication through the refrigerant pipe.

Specifically, in the air conditioner according to the embodiment of the present invention, a power line carrier communication mode and a refrigerant pipe acoustic wave communication mode are provided between the internal machine and the external machine, first, the air conditioner according to the embodiment of the present invention performs communication detection on a power line between the internal machine and the external machine, and when a communication failure is detected as a communication failure, that is, when there is a communication failure in the power line carrier communication mode between the internal machine and the external machine, the air conditioner according to the embodiment of the present invention switches the power line carrier communication mode to the refrigerant pipe acoustic wave communication mode to control the internal machine and the external machine to perform acoustic wave communication through the refrigerant pipe. According to the technical scheme of the embodiment of the invention, the air conditioner can identify whether the power line carrier communication mode has a fault, when the power line carrier communication mode has the fault due to the interference of household appliances in a power grid, the air conditioner can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit can keep communication through the refrigerant pipe sound wave communication mode, and the refrigerant pipe sound wave communication mode is less in interference of the household appliances, so that the communication stability of the air conditioner can be improved, and the normal operation of the air conditioner is ensured.

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an indoor main control module for performing a communication mode switching method of an air conditioner according to an embodiment of the present invention.

The indoor main control module 110 of the embodiment of the present invention includes one or more indoor processors 111 and an indoor memory 112, and fig. 1 illustrates an indoor processor 111 and an indoor memory 112 as an example.

The indoor processor 111 and the indoor memory 112 may be connected by a bus or other means, and fig. 1 illustrates the bus connection.

The indoor memory 112, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the in-room memory 112 may include high speed random access in-room memory, and may also include non-transitory in-room memory, such as at least one in-disk in-room memory device, flash memory device, or other non-transitory solid state in-room memory device. In some embodiments, the indoor memory 112 may optionally include an indoor memory 112 remotely located from the indoor processor 111, and these remote indoor memories may be connected to the indoor master module 110 through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Those skilled in the art will appreciate that the configuration of the apparatus shown in fig. 1 does not constitute a limitation of the indoor master control module 110 and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.

In the indoor main control module 110 shown in fig. 1, the indoor processor 111 may be configured to call a communication mode switching program of the air conditioner stored in the indoor memory 112, so as to implement a communication mode switching method of the air conditioner.

As shown in fig. 2, fig. 2 is a schematic diagram of an outdoor main control module for executing a communication mode switching method of an air conditioner according to an embodiment of the present invention.

The outdoor main control module 210 of the embodiment of the present invention includes, but is not limited to, one or more outdoor processors 211 and outdoor memories 212, and fig. 2 illustrates an outdoor processor 211 and an outdoor memory 212 as an example.

The outdoor processor 211 and the outdoor memory 212 may be connected by a bus or other means, and fig. 2 illustrates the bus connection.

The outdoor memory 212, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. In addition, the outdoor memory 212 may include a high-speed random access outdoor memory, and may also include a non-transitory outdoor memory, such as at least one disk outdoor storage device, flash memory device, or other non-transitory solid state outdoor storage device. In some embodiments, the outdoor memory 212 may optionally include an outdoor memory 212 remotely disposed with respect to the outdoor processor 211, and the remote outdoor memories may be connected to the outdoor master control module 210 through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Those skilled in the art will appreciate that the device configuration shown in fig. 2 does not constitute a limitation of the outdoor master control module 210, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.

In the outdoor main control module 210 shown in fig. 2, the outdoor processor 211 may be configured to call a communication mode switching program of the air conditioner stored in the outdoor memory 212, so as to implement a communication mode switching method of the air conditioner.

Based on the hardware structures of the indoor main control module 110 and the outdoor main control module 210, various embodiments of the air conditioner of the present invention are proposed.

As shown in fig. 3, fig. 3 is a schematic diagram of a relationship between an indoor unit and an outdoor unit in a case of using a power line carrier communication method according to an embodiment of the present invention.

Specifically, the indoor unit 100 includes, but is not limited to, the indoor main control module 110 shown in fig. 1 and the central coordinator module 120 connected to the indoor main control module 110, and the outdoor unit 200 includes, but is not limited to, the outdoor main control module 210 shown in fig. 2 and the site module 220 connected to the outdoor main control module 210.

Wherein the central coordinator module 120 and the site module 220 are connected by a power line.

The power line carrier communication mode is as follows:

the indoor main control module 110 transmits information to the central coordinator module 120, the central coordinator module 120 transmits the information to the site module 220 of the outdoor unit 200 through the power line after receiving the information, the site module 220 transmits the information to the outdoor main control module 210, the outdoor main control module 210 transmits reply information to the site module 220 after receiving the information, the site module 220 transmits the received reply information to the central coordinator module 120 through the power line, and the central coordinator module 120 transmits the received reply information to the indoor main control module 110.

As shown in fig. 4, fig. 4 is a schematic diagram of a relationship between an indoor unit and an outdoor unit in a case of using a refrigerant pipe acoustic wave communication method according to an embodiment of the present invention.

Specifically, the indoor unit 100 includes, but is not limited to, the indoor main control module 110 and the indoor transducing module 130 shown in fig. 1, and the outdoor unit 200 includes, but is not limited to, the outdoor main control module 210 and the outdoor transducing module 230 shown in fig. 2.

The indoor transduction module 130 and the outdoor transduction module 230 are connected by a refrigerant pipe.

The refrigerant pipe acoustic communication mode is as follows:

the indoor main control module 110 sends an electrical signal to the indoor transduction module 130, the indoor transduction module 130 converts the electrical signal into a sound wave signal, the sound wave signal is transmitted to the outdoor transduction module 230 through a refrigerant pipe or a refrigerant, and the outdoor transduction module 230 converts the received sound wave signal into an electrical signal and transmits the electrical signal to the outdoor main control module 210; the outdoor main control module 210 sends the reply electrical signal to the outdoor transduction module 230 after receiving the reply electrical signal, the outdoor transduction module 230 converts the reply electrical signal into a sound wave signal, the sound wave signal is transmitted to the indoor transduction module 130 through a refrigerant pipe or a refrigerant, and the indoor transduction module 130 converts the received sound wave signal into an electrical signal and transmits the electrical signal to the indoor main control module 110.

Various embodiments of the communication method switching method of an indoor unit side air conditioner according to the present invention are proposed based on the module hardware structure of the air conditioner in fig. 1 to 4.

Referring to fig. 5, fig. 5 is a flowchart of a communication mode switching method of an air conditioner according to an embodiment of the present invention.

The air conditioner provided by the embodiment of the invention comprises an indoor unit and an outdoor unit, wherein a power line is arranged between the indoor unit and the outdoor unit and is used for carrying out carrier communication between the indoor unit and the outdoor unit, and a refrigerant pipe is also arranged between the indoor unit and the outdoor unit and is used for carrying out sound wave communication between the indoor unit and the outdoor unit.

The communication mode switching method of the air conditioner of the embodiment of the invention comprises but is not limited to the step S100 and the step S200.

S100, carrying out communication detection on a power line between an indoor unit and an outdoor unit;

and S200, when the detection result is a communication fault, controlling the indoor unit and the outdoor unit to perform sound wave communication through a refrigerant pipe.

The air conditioner comprises an indoor machine, an outdoor machine, a power line communication module, a communication module and a communication module, wherein the indoor machine and the outdoor machine are arranged in the air conditioner; when the indoor unit and the outdoor unit in the air conditioner adopt a refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit carry out carrier communication through the refrigerant pipe.

Specifically, in the air conditioner according to the embodiment of the present invention, a power line carrier communication mode and a refrigerant pipe acoustic wave communication mode are provided between the internal machine and the external machine, first, the air conditioner according to the embodiment of the present invention performs communication detection on a power line between the internal machine and the external machine, and when a communication failure is detected as a communication failure, that is, when there is a communication failure in the power line carrier communication mode between the internal machine and the external machine, the air conditioner according to the embodiment of the present invention switches the power line carrier communication mode to the refrigerant pipe acoustic wave communication mode to control the internal machine and the external machine to perform acoustic wave communication through the refrigerant pipe.

According to the technical scheme of the embodiment of the invention, the air conditioner can identify whether the power line carrier communication mode has a fault, when the power line carrier communication mode has the fault due to the interference of household appliances in a power grid, the air conditioner can switch the power line carrier communication mode into the refrigerant pipe sound wave communication mode, the indoor unit and the outdoor unit can keep communication through the refrigerant pipe sound wave communication mode, and the refrigerant pipe sound wave communication mode is less in interference of the household appliances, so that the communication stability of the air conditioner can be improved, and the normal operation of the air conditioner is ensured.

In addition, when the detection result shows that the communication is normal, the power line carrier communication mode is normal, and at the moment, the indoor unit and the outdoor unit can communicate in the power line carrier communication mode.

In addition, it should be noted that the indoor unit and the outdoor unit of the air conditioner in the embodiment of the present invention can realize the sound wave communication mode of the refrigerant pipe only by copper pipe connection, and the installation is convenient.

Referring to fig. 6, fig. 6 is a flowchart illustrating pushing communication failure information when a failure is detected in the refrigerant pipe acoustic wave communication method according to an embodiment of the present invention.

Specifically, after the step S200, the method for switching the communication mode of the air conditioner according to the embodiment of the present invention further includes, but is not limited to, the steps S310 and S320.

Step S310, carrying out communication detection on a refrigerant pipe between an indoor unit and an outdoor unit;

and step S320, when the detection result is the communication fault, pushing communication fault information.

Specifically, when the air conditioner performs communication in a refrigerant pipe sound wave communication mode, if a communication fault problem in the refrigerant pipe sound wave communication mode between the indoor unit and the outdoor unit is detected, at the moment, the communication fault problem exists in both the refrigerant pipe sound wave communication mode and the power line carrier communication mode, and communication cannot be performed between the indoor unit and the outdoor unit, so that the communication fault information can be pushed to a user to remind the user to perform inspection and maintenance.

In addition, when the air conditioner communicates in a refrigerant pipe sound wave communication mode, if the refrigerant pipe sound wave communication mode between the indoor unit and the outdoor unit is detected to be normal, at the moment, the communication fault problem exists in the power line carrier communication mode but the communication fault problem does not exist in the refrigerant pipe sound wave communication mode, therefore, the communication between the indoor unit and the outdoor unit can be maintained in the refrigerant pipe sound wave communication mode, the communication stability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.

In addition, it can be understood that the air conditioner can push communication fault information to a display screen of the indoor unit, can also push communication fault information to an air conditioner remote controller, and can also push communication fault information to interconnected terminal equipment such as a mobile phone.

In addition, as to the processes of performing communication detection in the step S100 and the step S310, reference may be specifically made to fig. 7 or fig. 8, where fig. 7 is a flowchart of performing communication detection in a manner that whether an indoor unit receives information transmitted by an outdoor unit according to an embodiment of the present invention; fig. 8 is a flowchart of communication detection performed by determining whether an outdoor unit receives information transmitted from an indoor unit according to an embodiment of the present invention.

As shown in fig. 7, the process of performing communication detection in the above step S100 and the above step S310 includes, but is not limited to, step S410 and step S420.

Step S410, judging whether the indoor unit receives information transmitted by the outdoor unit;

step S420, when the indoor unit does not receive the information transmitted by the outdoor unit, determining that the detection result is a communication failure.

Specifically, regarding the communication detection of the power line carrier communication method between the indoor unit and the outdoor unit in step S100, when the air conditioner performs communication by using the power line carrier communication method, if the indoor unit does not receive the information transmitted by the outdoor unit, it indicates that the power line carrier communication method has a communication failure problem, that is, the communication detection result of the power line carrier communication method is a communication failure. If the indoor unit can receive the information transmitted by the outdoor unit, the communication failure problem does not exist in the power line carrier communication mode, namely the communication detection result of the power line carrier communication mode is normal communication.

Specifically, for step S310, regarding communication detection of the sound wave communication method of the refrigerant pipe between the indoor unit and the outdoor unit, when the air conditioner performs communication by using the sound wave communication method of the refrigerant pipe, if the indoor unit does not receive information transmitted by the outdoor unit, it indicates that the sound wave communication method of the refrigerant pipe has a communication failure problem, that is, a communication detection result of the sound wave communication method of the refrigerant pipe is a communication failure. If the indoor unit can receive the information transmitted by the outdoor unit, the problem that the refrigerant pipe sound wave communication mode has no communication fault is shown, namely the communication detection result of the refrigerant pipe sound wave communication mode is normal communication.

As shown in fig. 8, the process of performing communication detection in the above step S100 and the above step S310 includes, but is not limited to, step S510 and step S520.

Step S510, judging whether the outdoor unit receives information transmitted by the indoor unit;

and step S520, when the outdoor unit does not receive the information transmitted by the indoor unit, determining that the detection result is a communication fault.

Specifically, regarding the communication detection of the power line carrier communication method between the outdoor unit and the indoor unit in step S100, when the air conditioner performs communication by using the power line carrier communication method, if the outdoor unit does not receive the information transmitted by the indoor unit, it indicates that the power line carrier communication method has a communication failure problem, that is, the communication detection result of the power line carrier communication method is a communication failure. If the outdoor unit can receive the information transmitted by the indoor unit, the communication failure problem does not exist in the power line carrier communication mode, namely the communication detection result of the power line carrier communication mode is normal communication.

Specifically, for step S310, regarding communication detection of the sound wave communication method of the refrigerant pipe between the indoor unit and the outdoor unit, when the air conditioner performs communication by using the sound wave communication method of the refrigerant pipe, if the outdoor unit does not receive information transmitted by the indoor unit, it indicates that the sound wave communication method of the refrigerant pipe has a communication failure problem, that is, a communication detection result of the sound wave communication method of the refrigerant pipe is a communication failure. If the outdoor unit can receive the information transmitted by the indoor unit, the problem that the refrigerant pipe sound wave communication mode has no communication fault is shown, namely the communication detection result of the refrigerant pipe sound wave communication mode is normal communication.

In addition, as to the specific implementation process of step S410 and step S420 in fig. 7, reference may be specifically made to fig. 9 or fig. 10, where fig. 9 is a flowchart of performing communication detection in a manner that whether the indoor unit receives information transmitted by the outdoor unit within a time threshold according to an embodiment of the present invention; fig. 10 is a flowchart illustrating communication detection according to the number of retransmissions of indoor unit retransmission information to an outdoor unit according to an embodiment of the present invention.

As shown in fig. 9, the specific implementation process of the above steps S410 and S420 may include, but is not limited to, steps S610 and S620.

Step S610, the indoor unit sends information to the outdoor unit;

and S620, when the indoor unit does not receive the reply information transmitted by the outdoor unit within the time length threshold, determining that the detection result is a communication fault.

Specifically, for communication detection of the power line carrier communication mode between the indoor unit and the outdoor unit, when the air conditioner performs communication in the power line carrier communication mode, after the indoor unit sends information to the outdoor unit, if the indoor unit does not receive information transmitted by the outdoor unit within the time threshold, it indicates that the power line carrier communication mode has a communication fault problem, that is, a communication detection result of the power line carrier communication mode is a communication fault. If the indoor unit can receive the information transmitted by the outdoor unit within the time length threshold, the communication fault problem does not exist in the power line carrier communication mode, namely the communication detection result of the power line carrier communication mode is normal communication.

In addition, for communication detection of the refrigerant pipe sound wave communication mode between the indoor unit and the outdoor unit, when the air conditioner communicates in the refrigerant pipe sound wave communication mode, after the indoor unit sends information to the outdoor unit, if the indoor unit does not receive the information transmitted by the outdoor unit within the time length threshold value, the refrigerant pipe sound wave communication mode has a communication fault problem, namely, the communication detection result of the refrigerant pipe sound wave communication mode is a communication fault. If the indoor unit can receive the information transmitted by the outdoor unit within the time length threshold value, the problem that the refrigerant pipe sound wave communication mode has no communication fault is shown, namely the communication detection result of the refrigerant pipe sound wave communication mode is normal communication.

It is understood that, the duration threshold may be a fixed duration arbitrarily set by human, or may be a duration adaptively adjusted according to an environmental parameter.

As shown in fig. 10, the specific implementation process of the above step S410 and step S420 may include, but is not limited to, step S710 and step S720.

Step S710, the indoor unit repeatedly sends information to the outdoor unit;

and S720, when the retransmission times are larger than or equal to the time threshold value and the indoor unit does not receive the reply information transmitted by the outdoor unit, determining that the detection result is a communication fault.

Specifically, for communication detection of the power line carrier communication mode between the indoor unit and the outdoor unit, when the air conditioner performs communication in the power line carrier communication mode, the indoor unit repeatedly sends the same information to the outdoor unit for multiple times, and when the number of retransmissions reaches a threshold number of times, the indoor unit still does not receive information transmitted by the outdoor unit, which indicates that the power line carrier communication mode has a communication fault problem, that is, a communication detection result of the power line carrier communication mode is a communication fault. If the indoor unit can receive the information transmitted by the outdoor unit before the retransmission times reach the time threshold, the communication failure problem does not exist in the power line carrier communication mode, namely the communication detection result of the power line carrier communication mode is normal communication.

In addition, for communication detection of the refrigerant pipe sound wave communication mode between the indoor unit and the outdoor unit, when the air conditioner performs communication by adopting the refrigerant pipe sound wave communication mode, the indoor unit repeatedly sends the same information to the outdoor unit for multiple times, and when the retransmission times reach the time threshold value, the indoor unit still does not receive the information transmitted by the outdoor unit, so that the problem of communication failure of the refrigerant pipe sound wave communication mode is indicated, namely, the communication detection result of the refrigerant pipe sound wave communication mode is communication failure. If the indoor unit can receive the information transmitted by the outdoor unit before the retransmission times reach the time threshold value, the problem that the refrigerant pipe sound wave communication mode has no communication fault is shown, namely the communication detection result of the refrigerant pipe sound wave communication mode is normal communication.

It is to be understood that the number threshold may be a fixed number that is arbitrarily set by human, or may be a number that is adaptively adjusted according to an environmental parameter.

In addition, as to the specific implementation process of step S510 and step S520 in fig. 8, reference may be specifically made to fig. 11 or fig. 12, where fig. 11 is a flowchart illustrating communication detection performed by means of whether the outdoor unit receives information transmitted by the indoor unit within a time threshold according to an embodiment of the present invention; fig. 12 is a flowchart illustrating communication detection according to the number of retransmissions of outdoor unit retransmission information to indoor units according to an embodiment of the present invention.

As shown in fig. 11, the specific implementation process of the above step S510 and step S520 may include, but is not limited to, step S810 and step S820.

Step S810, the outdoor unit sends information to the indoor unit;

step S820, when the outdoor unit does not receive the reply message transmitted by the indoor unit within the time length threshold, determining that the detection result is a communication failure.

Specifically, for communication detection of the power line carrier communication mode between the indoor unit and the outdoor unit, when the air conditioner performs communication in the power line carrier communication mode, after the outdoor unit sends information to the indoor unit, if the outdoor unit does not receive information transmitted by the indoor unit within the time threshold, it indicates that the power line carrier communication mode has a communication fault problem, that is, a communication detection result of the power line carrier communication mode is a communication fault. If the outdoor unit can receive the information transmitted by the indoor unit within the time length threshold, the outdoor unit indicates that the power line carrier communication mode has no communication fault problem, namely the communication detection result of the power line carrier communication mode is normal communication.

In addition, for communication detection of a refrigerant pipe sound wave communication mode between an indoor unit and an outdoor unit, when the air conditioner communicates in the refrigerant pipe sound wave communication mode, after the outdoor unit sends information to the indoor unit, if the outdoor unit does not receive information transmitted by the indoor unit within a time threshold, the refrigerant pipe sound wave communication mode has a communication fault problem, namely a communication detection result of the refrigerant pipe sound wave communication mode is a communication fault. If the outdoor unit can receive the information transmitted by the indoor unit within the time threshold, the problem that the refrigerant pipe sound wave communication mode has no communication fault is indicated, namely the communication detection result of the refrigerant pipe sound wave communication mode is normal communication.

As shown in fig. 12, the specific implementation process of the above step S510 and step S520 may include, but is not limited to, step S910 and step S920.

Step S910, the outdoor unit repeatedly sends information to the indoor unit;

and step S920, when the retransmission times are larger than or equal to the time threshold value and the outdoor unit does not receive the reply information transmitted by the indoor unit, determining that the detection result is a communication fault.

Specifically, for communication detection of the power line carrier communication mode between the indoor unit and the outdoor unit, when the air conditioner performs communication in the power line carrier communication mode, the outdoor unit repeatedly sends the same information to the indoor unit for multiple times, and when the number of retransmissions reaches a threshold number of times, the outdoor unit still does not receive information transmitted by the indoor unit, which indicates that the power line carrier communication mode has a communication fault problem, that is, a communication detection result of the power line carrier communication mode is a communication fault. If the outdoor unit can receive the information transmitted by the indoor unit before the retransmission times reach the time threshold, the problem that the power line carrier communication mode has no communication fault is shown, namely the communication detection result of the power line carrier communication mode is normal communication.

In addition, for communication detection of the refrigerant pipe sound wave communication mode between the indoor unit and the outdoor unit, when the air conditioner performs communication by adopting the refrigerant pipe sound wave communication mode, the outdoor unit repeatedly sends the same information to the indoor unit for many times, and when the retransmission times reach the time threshold value, the outdoor unit still does not receive the information transmitted by the indoor unit, so that the problem of communication failure of the refrigerant pipe sound wave communication mode is indicated, namely, the communication detection result of the refrigerant pipe sound wave communication mode is communication failure. If the outdoor unit can receive the information transmitted by the indoor unit before the retransmission times reach the time threshold value, the problem that the refrigerant pipe sound wave communication mode has no communication fault is shown, namely the communication detection result of the refrigerant pipe sound wave communication mode is normal communication.

It should be noted that the indoor unit includes, but is not limited to, an indoor main control module and a central coordinator module connected to the indoor main control module, and the outdoor unit includes, but is not limited to, an outdoor main control module and a site module connected to the outdoor main control module.

The central coordinator module is connected with the site module through a power line, namely, the indoor main control module is connected with the outdoor main control module through the central coordinator module, the power line and the site module.

Then, as to the specific implementation process of step S100 in fig. 5, reference may be specifically made to fig. 13 or fig. 14, where fig. 13 is a flowchart of performing communication detection in a manner that whether the indoor main control module receives the information transmitted by the outdoor main control module according to an embodiment of the present invention; fig. 14 is a flowchart for communication detection according to an embodiment of the present invention, wherein the outdoor main control module receives information transmitted by the indoor main control module.

As shown in fig. 13, the implementation of step S100 may include, but is not limited to, step S1010, step S1020, and step S1030.

Step S1010, the indoor main control module sends the information to the outdoor main control module through the central coordinator module, the power line and the station module in sequence;

step S1020, judging whether the indoor main control module receives a reply message transmitted by the outdoor main control module;

step S1030, when the indoor main control module does not receive the reply message from the outdoor unit, it is determined that the carrier communication between the indoor main control module and the outdoor main control module has a failure.

Specifically, for step S100, in case that the power line carrier communication mode between the indoor and outdoor units is detected, the indoor main control module sends information to the central coordinator module, the central coordinator module receives the information and then transmits the information to the site module of the outdoor unit in a carrier form through the power line, the site module receives the information and then transmits the information to the outdoor main control module, the outdoor main control module receives the signal and then sends reply information back to the site module, the site module transmits the received reply information to the central coordinator module in a carrier form through the power line, and the central coordinator module transmits the received reply information to the indoor main control module.

Therefore, if the indoor main control module does not receive the information transmitted by the outdoor main control module, it indicates that the communication fault problem exists in the power line carrier communication mode, that is, the communication fault problem exists in the power line carrier communication mode between the indoor main control module and the outdoor main control module, and the communication fault problem may be caused by the interference of household appliances in the power grid.

In addition, if the indoor main control module can receive the information transmitted by the outdoor main control module, it indicates that the power line carrier communication mode has no communication fault problem, i.e. it indicates that the power line carrier communication mode between the indoor main control module and the outdoor main control module is normal.

As shown in fig. 14, the implementation process of step S100 may include, but is not limited to, step S1110, step S1120, and step S1130.

Step S1110, the outdoor main control module sends the information to the indoor main control module through the station module, the power line and the central coordinator module in sequence;

step S1120, determining whether the outdoor main control module receives a reply message transmitted by the indoor main control module;

step S1130, when the outdoor main control module does not receive the reply information from the indoor unit, it is determined that the carrier communication between the outdoor main control module and the indoor main control module has a failure.

Specifically, for step S100, regarding communication detection of the power line carrier communication mode between the indoor unit and the outdoor unit, when the power line carrier communication mode is normal, the outdoor main control module sends information to the site module, the site module receives the information and then transmits the information to the central coordinator module of the indoor unit in the form of carrier through the power line, the central coordinator module receives the information and then transmits the information to the indoor main control module, the indoor main control module receives the signal and then sends reply information to the central coordinator module, the central coordinator module transmits the received reply information to the site module in the form of carrier through the power line, and the site module transmits the received reply information to the outdoor main control module.

Therefore, if the outdoor main control module does not receive the information transmitted by the indoor main control module, it indicates that the communication fault problem exists in the power line carrier communication mode, that is, the communication fault problem exists in the power line carrier communication mode between the outdoor main control module and the indoor main control module, and the communication fault problem may be caused by the interference of household appliances in the power grid.

In addition, if the outdoor main control module can receive the information transmitted by the indoor main control module, it indicates that the power line carrier communication mode has no communication fault problem, i.e. it indicates that the power line carrier communication mode between the outdoor main control module and the indoor main control module is normal.

It should be noted that the indoor unit further includes, but is not limited to, an indoor transduction module connected to the indoor main control module, and the outdoor unit further includes, but is not limited to, an outdoor transduction module connected to the outdoor main control module.

The indoor energy conversion module and the outdoor energy conversion module are connected through a refrigerant pipe, namely, the indoor main control module is also connected to the outdoor main control module through the indoor energy conversion module, the refrigerant pipe and the outdoor energy conversion module.

Then, as to the specific implementation process of step S310 in fig. 6, reference may be specifically made to fig. 15 or fig. 16, where fig. 15 is a flowchart of performing communication detection in a manner that whether the indoor main control module receives the information transmitted by the outdoor main control module according to another embodiment of the present invention; fig. 16 is a flowchart of communication detection according to another embodiment of the present invention, wherein the communication detection is performed by whether the outdoor main control module receives the information transmitted by the indoor main control module.

As shown in fig. 15, the implementation process of step S310 may include, but is not limited to, step S1210, step S1220, and step S1230.

Step S1210, the indoor main control module sends information to the outdoor main control module through the indoor energy conversion module, the refrigerant pipe and the outdoor energy conversion module in sequence;

step S1220, determining whether the indoor main control module receives a reply message transmitted by the outdoor main control module;

step S1230, when the indoor main control module does not receive the reply information from the outdoor unit, it is determined that the acoustic wave communication between the indoor main control module and the outdoor main control module has a failure.

Specifically, for step S310, regarding communication detection of the refrigerant pipe sound wave communication mode between the internal machine and the external machine, in the case that the refrigerant pipe sound wave communication mode is normal, specifically, the indoor main control module sends an electric signal to the indoor transduction module, the indoor transduction module converts the electric signal into a sound wave signal, and then the sound wave signal is transmitted to the outdoor transduction module through the refrigerant pipe or the refrigerant, and the outdoor transduction module converts the received sound wave signal into an electric signal and transmits the electric signal to the outdoor main control module; outdoor host system can reply the signal of telecommunication to outdoor transduction module after that, and outdoor transduction module converts the signal of telecommunication into sound wave signal, and the sound wave signal can be passed through refrigerant pipe or refrigerant transmission and is given indoor transduction module after that, and indoor transduction module converts the sound wave signal of receiving into the signal of telecommunication and transmits indoor host system.

Therefore, if the indoor main control module does not receive the information transmitted by the outdoor main control module, the problem of communication faults in the refrigerant pipe sound wave communication mode is indicated, namely the problem of communication faults in the refrigerant pipe sound wave communication mode between the indoor main control module and the outdoor main control module is indicated.

In addition, if the indoor main control module can receive the information transmitted by the outdoor main control module, it indicates that the refrigerant pipe sound wave communication mode has no communication fault problem, i.e. it indicates that the refrigerant pipe sound wave communication mode between the indoor main control module and the outdoor main control module is normal.

The indoor transducer module and the outdoor transducer module may be, but not limited to, ultrasonic transducers, wherein the ultrasonic transducers are made of piezoelectric ceramics. When the indoor transduction module and the outdoor transduction module are ultrasonic transducers, the sound wave signals are ultrasonic signals.

As shown in fig. 16, the specific implementation process of step S310 may include, but is not limited to, step S1310, step S1320, and step S1330.

Step 1310, the outdoor main control module sends the information to the indoor main control module through the outdoor energy conversion module, the refrigerant pipe and the indoor energy conversion module in sequence;

step S1320, determining whether the outdoor main control module receives the reply message transmitted by the indoor main control module;

step S1330, when the outdoor main control module does not receive the reply information from the indoor unit, determining that the acoustic wave communication between the outdoor main control module and the indoor main control module has a failure.

Specifically, for step S310, regarding communication detection of the refrigerant pipe sound wave communication mode between the internal machine and the external machine, in the case that the refrigerant pipe sound wave communication mode is normal, specifically, the outdoor main control module may send an electric signal to the outdoor transduction module, the outdoor transduction module converts the electric signal into a sound wave signal, and then the sound wave signal may be transmitted to the indoor transduction module through the refrigerant pipe or the refrigerant, and the indoor transduction module converts the received sound wave signal into an electric signal and transmits the electric signal to the indoor main control module; then, indoor host system can reply the signal of telecommunication for indoor transduction module, and indoor transduction module converts the signal of telecommunication into sound wave signal, and the sound wave signal can be passed through refrigerant pipe or refrigerant transmission and is given outdoor transduction module next, and outdoor transduction module converts the sound wave signal of receiving into the signal of telecommunication and transmits for outdoor host system.

Therefore, if the outdoor main control module does not receive the information transmitted by the indoor main control module, it indicates that the refrigerant pipe sound wave communication mode has a communication fault problem, that is, it indicates that the refrigerant pipe sound wave communication mode between the indoor main control module and the outdoor main control module has a communication fault problem.

In addition, if the outdoor main control module can receive the information transmitted by the indoor main control module, it indicates that the refrigerant pipe sound wave communication mode has no communication fault problem, i.e. it indicates that the refrigerant pipe sound wave communication mode between the indoor main control module and the outdoor main control module is normal.

In addition, after step S310 in fig. 6, the communication method switching method according to the embodiment of the present invention further includes the method step of returning to the power line carrier communication method shown in fig. 17 or fig. 18. Fig. 17 is a flowchart of a recovery to power line carrier communication method according to an embodiment of the present invention; fig. 18 is a flowchart of a resume to powerline carrier communication scheme according to another embodiment of the present invention.

As shown in fig. 17, after step S310, the method for switching communication modes according to the embodiment of the present invention further includes, but is not limited to, step S1410 and step S1420.

Step 1410, under the condition that the communication is normal, the indoor unit sends a detection signal to the outdoor unit through the power line;

and step S1420, when the indoor unit receives a feedback signal based on the detection signal from the outdoor unit through the power line, switching the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe to the carrier wave communication through the power line.

Specifically, when the air conditioner communicates in a refrigerant pipe sound wave communication mode, if it is detected that the refrigerant pipe sound wave communication mode between the indoor unit and the outdoor unit is normal, at this time, the communication fault problem exists in the power line carrier communication mode but the communication fault problem does not exist in the refrigerant pipe sound wave communication mode, so that the communication between the indoor unit and the outdoor unit can be maintained in the refrigerant pipe sound wave communication mode, the communication stability of the air conditioner is improved, and the normal operation of the air conditioner is ensured.

However, since the interference of the home appliance may disappear with the lapse of time after a period of time, the power line carrier communication method may also gradually return to normal, and since the refrigerant pipe acoustic communication method is a standby communication method and the power line carrier communication method is a main communication method, after the refrigerant pipe acoustic communication method is used for a period of time, the indoor unit of the embodiment of the present invention transmits the detection signal to the outdoor unit through the power line, and if the indoor unit receives a feedback signal based on the detection signal of the outdoor unit through the power line, it indicates that the power line carrier communication method returns to normal, so the embodiment of the present invention switches the acoustic communication between the indoor unit and the outdoor unit from the acoustic communication through the refrigerant pipe to the carrier communication through the power line.

As shown in fig. 18, after the step S310, the communication method switching method according to the embodiment of the present invention further includes, but is not limited to, a step S1510 and a step S1520.

Step 1510, under the condition that the communication is normal, the outdoor unit sends a detection signal to the indoor unit through the power line;

and step S1520, when the outdoor unit receives a feedback signal based on the detection signal from the indoor unit through the power line, switching the sound wave communication between the indoor unit and the outdoor unit through the refrigerant pipe to the carrier wave communication through the power line.

However, since the interference of the household electrical appliance may disappear with the lapse of time after a period of time, the power line carrier communication mode may also gradually return to normal, and since the refrigerant pipe acoustic communication mode is the standby communication mode and the power line carrier communication mode is the main communication mode, after the refrigerant pipe acoustic communication mode is used for a period of time, the outdoor unit of the embodiment of the present invention may send the detection signal to the indoor unit through the power line, and if the outdoor unit receives the feedback signal of the indoor unit based on the detection signal through the power line, it indicates that the power line carrier communication mode returns to normal, so the embodiment of the present invention may switch the acoustic communication between the indoor unit and the outdoor unit from the acoustic communication through the refrigerant pipe to the carrier communication through the power line.

In addition, based on the method steps in fig. 5 to 18, an embodiment of the present invention provides an overall flowchart of a communication method switching method of an air conditioner, as shown in fig. 19, including, but not limited to, step S1610, step C110, step S1620, step C120, step S1630, and step S1640.

Step S1610, the air conditioner adopts a power line carrier communication mode to carry out communication between the indoor unit and the outdoor unit;

step C110, judging whether the communication between the indoor unit and the outdoor unit is successful, if so, executing step S1640, and if not, executing step S1620;

s1620, the air conditioner is switched to a refrigerant pipe sound wave communication mode to carry out communication between the indoor unit and the outdoor unit;

step C120, judging whether the communication between the indoor unit and the outdoor unit is successful, if so, executing step S1640, and if not, executing step S1630;

step S1630, pushing communication fault information;

and step S1640, normally operating the air conditioner.

Based on the above described communication mode switching methods of the indoor main control module, the outdoor main control module, the air conditioner and the air conditioner, the following respectively proposes various embodiments of the indoor unit, the outdoor unit, the air conditioner and the computer readable storage medium of the present invention.

In addition, an embodiment of the present invention provides an indoor unit including: an indoor memory, an indoor processor, and a computer program stored on the indoor memory and executable on the indoor processor.

The indoor processor and the indoor memory may be connected by a bus or other means.

It should be noted that the indoor unit in this embodiment may include the indoor main control module in the embodiment shown in fig. 1, and both of them belong to the same inventive concept, so that both of them have the same implementation principle and beneficial effect, and are not described in detail herein.

The non-transitory software program and instructions required to implement the communication method switching method of the air conditioner of the above-described embodiment are stored in the indoor memory, and when executed by the indoor processor, the communication method switching method of the air conditioner of the above-described embodiment is performed.

In addition, an embodiment of the present invention provides an outdoor unit including: an outdoor memory, an outdoor processor, and a computer program stored on the outdoor memory and executable on the outdoor processor.

The outdoor processor and the outdoor memory may be connected by a bus or other means.

It should be noted that the outdoor unit in this embodiment may include the outdoor main control module in the embodiment shown in fig. 2, and both of them belong to the same inventive concept, so that both of them have the same implementation principle and beneficial effect, and are not described in detail herein.

The non-transitory software program and instructions required to implement the communication method switching method of the air conditioner of the above-described embodiment are stored in the outdoor memory, and when executed by the outdoor processor, the communication method switching method of the air conditioner of the above-described embodiment is performed.

In addition, an embodiment of the present invention also provides an air conditioner including an indoor unit, an outdoor unit, a processor, a memory, and a computer program stored on the memory and executable on the processor.

The power line used for carrying out carrier communication between the internal machine and the external machine and the refrigerant pipe used for carrying out sound wave communication between the internal machine and the external machine are arranged between the internal machine and the external machine.

The processor implements the communication mode switching method of the air conditioner as described in the above embodiments when executing the computer program.

In addition, it should be noted that, since the air conditioner according to the embodiment of the present invention is capable of executing the communication method switching method of the air conditioner according to the above embodiment, specific implementations and technical effects of the air conditioner according to the embodiment of the present invention may refer to specific implementations and technical effects of the communication method switching method of the air conditioner according to any one of the above embodiments.

In addition, an embodiment of the present invention also provides a computer-readable storage medium storing computer-executable instructions for performing the communication mode switching method of the air conditioner. The method steps described above in fig. 5 to 19 are performed as an example.

One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. The communication mode switching method of the air conditioner is characterized in that the air conditioner comprises an indoor unit, an outdoor unit, a power line and a refrigerant pipe, wherein the power line is used for carrying out carrier communication between the indoor unit and the outdoor unit, and the refrigerant pipe is used for carrying out sound wave communication between the indoor unit and the outdoor unit;

the method comprises the following steps:

2. The method of claim 1, wherein after the controlling the acoustic communication between the indoor unit and the outdoor unit through the refrigerant pipe, the method further comprises:

3. The method of claim 1 or 2, wherein the performing communication detection comprises at least one of:

4. The method of claim 3, wherein when the performing communication detection includes when the indoor unit does not receive the information transmitted by the outdoor unit, determining that the detection result is a communication failure; when the indoor unit does not receive the information transmitted by the outdoor unit, determining that the detection result is a communication fault, wherein the detection result comprises one of the following steps:

5. The method of claim 3, wherein when the performing communication detection includes when the outdoor unit does not receive the information transmitted by the indoor unit, determining that the detection result is a communication failure; when the outdoor unit does not receive the information transmitted by the indoor unit, determining that the detection result is a communication fault, wherein the detection result comprises one of the following steps:

6. The method of claim 1, wherein the indoor unit comprises an indoor main control module and a central coordinator module, wherein the outdoor unit comprises an outdoor main control module and a site module, and wherein the indoor main control module is connected to the outdoor main control module through the central coordinator module, the power line, and the site module;

7. The method of claim 2, wherein the indoor unit comprises an indoor main control module and an indoor transduction module, the outdoor unit comprises an outdoor main control module and an outdoor transduction module, and the indoor main control module is connected to the outdoor main control module through the indoor transduction module, the refrigerant pipe and the outdoor transduction module;

8. The method of claim 2, wherein after the detecting of the communication of the refrigerant pipe between the indoor unit and the outdoor unit, the method further comprises at least one of:

9. An air conditioner, comprising: the indoor unit, the outdoor unit, the processor, the memory and the computer program which is stored on the memory and can run on the processor; wherein, a power line for performing carrier communication between the indoor unit and the outdoor unit and a refrigerant pipe for performing sound wave communication between the indoor unit and the outdoor unit are provided between the indoor unit and the outdoor unit, and the processor implements the communication method switching method according to any one of claims 1 to 8 when executing the computer program.

10. A computer-readable storage medium storing computer-executable instructions for performing the communication method switching method according to any one of claims 1 to 8.