A central air conditioner control method, control device and cloud server

Abstract

The application provides a central air conditioner control method, a control device and a cloud server, and particularly relates to the technical field of air conditioners, and is used for automatically judging whether an indoor unit is abnormally started. The method comprises the following steps: receiving a start notification message sent by the indoor unit after starting; the start notification message is used for indicating a start initiator triggering the start of the indoor unit; in the case that the start initiator indicated by the start notification message is the control device, comparing whether the start notification message and a start control instruction are consistent, the start control instruction being a start control instruction recently sent by the control device; and in the case that the start notification message and the start control instruction are inconsistent, sending a shutdown instruction to the indoor unit.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a control method, control device and cloud server for a central air conditioning system. Background Technology

[0002] Central air conditioning systems have functions such as centralized air processing, reducing indoor temperature, regulating indoor humidity and airflow speed, removing pollutants such as dust and bacteria from indoor air, and replenishing indoor fresh air. They are widely used air conditioning systems in modern buildings.

[0003] However, indoor units of central air conditioning systems are prone to automatic start-up. Because the control system of central air conditioning is large and complex, and there may be multiple control devices from different manufacturers in the central air conditioning system, it is difficult to determine whether the indoor unit has started up abnormally.

[0004] Therefore, how to automatically determine whether the indoor unit is abnormally turned on is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a central air conditioning control method, control device, and cloud server for automatically determining whether the indoor unit is abnormally started.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] In a first aspect, a control method for a central air conditioning system is provided, applied to a control device, the method comprising:

[0008] Receive the power-on notification message sent by the indoor unit after it is powered on. The power-on notification message is used to indicate the power-on initiator that triggered the indoor unit to power on.

[0009] If the power-on initiator indicated by the power-on notification message is a control device, compare whether the power-on notification message and the power-on control command are consistent. The power-on control command is the power-on control command most recently sent by the control device.

[0010] If the power-on notification message and the power-on control command are inconsistent, a power-off command will be sent to the indoor unit.

[0011] The technical solution provided in this application provides at least the following beneficial effects: Under normal circumstances, the indoor unit only starts up after receiving a start-up control command from the start-up initiator. Therefore, if the start-up control command issued by the start-up initiator is inconsistent with the start-up notification message fed back by the indoor unit, it indicates that the indoor unit is abnormally started up; conversely, if the start-up control command issued by the start-up initiator is consistent with the start-up notification message fed back by the indoor unit, it indicates that the indoor unit is normally started up. To address this, this application automatically determines whether the central air conditioning system has abnormally started up by comparing whether the contents of the start-up notification message and the start-up control command are consistent. Furthermore, in this application, the start-up notification message indicates the start-up initiator that triggered the indoor unit's start-up; therefore, when abnormal start-up occurs, the source of the start-up control command for abnormal start-up can also be determined based on the content of the start-up notification message.

[0012] In some embodiments, the above-described central air conditioning control method further includes deleting the start-up control command when the start-up notification message and the start-up control command are consistent.

[0013] In some embodiments, the inconsistency between the power-on notification message and the power-on control command includes at least one of the following: the power-on initiator identifier in the power-on notification message is inconsistent with the power-on initiator identifier in the power-on control command; the power-on reason in the power-on notification message is inconsistent with the power-on reason in the power-on control command.

[0014] In some embodiments, the control device described above is one of a wired controller, a central controller, a terminal device, and a cloud server.

[0015] In some embodiments, the control device is a cloud server, and the method further includes: when the power-on initiator indicated by the power-on notification message is a linkage device, comparing whether the power-on notification message and the linkage power-on control instruction are consistent, wherein the linkage power-on control instruction is the most recently sent power-on control instruction by the linkage device; and when the power-on notification message and the linkage power-on control instruction are inconsistent, sending a power-off instruction to the indoor unit.

[0016] In some embodiments, the control method for the central air conditioning described above further includes sending a shutdown command to the indoor unit when the startup initiator identifier in the startup notification message is empty.

[0017] Secondly, embodiments of this application provide a central air conditioning system, including:

[0018] At least one indoor unit;

[0019] At least one outdoor unit;

[0020] The control device is configured as follows:

[0021] Receive the power-on notification message sent by the indoor unit after it is powered on. The power-on notification message is used to indicate the power-on initiator that triggered the indoor unit to power on.

[0022] If the power-on initiator indicated by the power-on notification message is a control device, compare whether the power-on notification message and the power-on control command are consistent. The power-on control command is the power-on control command most recently sent by the control device.

[0023] If the power-on notification message and the power-on control command are inconsistent, a power-off command will be sent to the indoor unit.

[0024] Thirdly, embodiments of this application provide a cloud server, including:

[0025] Communication device for establishing a communication connection with the indoor unit of a central air conditioning system;

[0026] The processor is configured as follows:

[0027] Receive the power-on notification message sent by the indoor unit after it is powered on. The power-on notification message is used to indicate the power-on initiator that triggered the indoor unit to power on.

[0028] If the power-on initiator indicated by the power-on notification message is a control device, compare whether the power-on notification message and the power-on control command are consistent. The power-on control command is the power-on control command most recently sent by the control device.

[0029] If the power-on notification message and the power-on control command are inconsistent, a power-off command will be sent to the indoor unit.

[0030] Fourthly, embodiments of this application provide a terminal device, including:

[0031] Communication device for establishing a communication connection with the indoor unit of a central air conditioning system;

[0032] The processor is configured as follows:

[0033] Receive the power-on notification message sent by the indoor unit after it is powered on. The power-on notification message is used to indicate the power-on initiator that triggered the indoor unit to power on.

[0034] If the power-on initiator indicated by the power-on notification message is a control device, compare whether the power-on notification message and the power-on control command are consistent. The power-on control command is the power-on control command most recently sent by the control device.

[0035] If the power-on notification message and the power-on control command are inconsistent, a power-off command will be sent to the indoor unit.

[0036] Fifthly, embodiments of this application provide a controller, including: one or more processors; one or more memories; wherein the one or more memories are used to store computer program code, the computer program code including computer instructions, and when the one or more processors execute the computer instructions, the controller executes the central air conditioning control method provided in the first aspect.

[0037] In a sixth aspect, embodiments of this application provide a computer-readable storage medium including computer instructions that, when controlled on a computer, cause the computer to execute the central air conditioning control method provided in the first aspect and possible implementations.

[0038] In a seventh aspect, embodiments of the present invention provide a computer program product that can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can implement the central air conditioning control method provided in the first aspect and possible implementations.

[0039] It should be noted that the aforementioned computer instructions may be stored, in whole or in part, on a computer-readable storage medium. This computer-readable storage medium may be packaged together with the controller's processor, or it may be packaged separately from the controller's processor; this application does not impose any limitations on this.

[0040] The beneficial effects described in aspects two through seven of this application can be referred to the analysis of the beneficial effects of aspect one, and will not be repeated here. Attached Figure Description

[0041] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0042] Figure 1 A schematic diagram of the structure of a central air conditioning system provided in this application embodiment. Figure 1 ;

[0043] Figure 2 A schematic diagram of the structure of a central air conditioning system provided in this application embodiment. Figure 2 ;

[0044] Figure 3 A schematic diagram of the structure of a central air conditioning system provided in this application embodiment. Figure 3 ;

[0045] Figure 4 A schematic diagram of the structure of a central air conditioning system provided in this application embodiment. Figure 4 ;

[0046] Figure 5A schematic diagram of the structure of a central air conditioning system provided in this application embodiment. Figure 5 ;

[0047] Figure 6 A schematic diagram of the structure of a central air conditioning system provided in this application embodiment. Figure 6 ;

[0048] Figure 7 This is a schematic diagram of a prompt message provided in an embodiment of this application;

[0049] Figure 8 This is a schematic diagram of the structure of a cloud server provided in an embodiment of this application;

[0050] Figure 9 This is a schematic diagram illustrating an application scenario of a cloud server provided in an embodiment of this application;

[0051] Figure 10 A schematic diagram of a terminal device provided in an embodiment of this application;

[0052] Figure 11 This application provides an illustration of an application scenario for a third-party wired controller.

[0053] Figure 12 This application provides an illustration of an application scenario for a third-party centralized controller.

[0054] Figure 13 A flowchart illustrating a central air conditioning control method provided in this application embodiment. Figure 1 ;

[0055] Figure 14 A flowchart illustrating a central air conditioning control method provided in this application embodiment. Figure 2 . Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0057] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0059] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0060] The terms “comprising” and “having”, and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0061] Furthermore, in the embodiments of this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0062] As mentioned in the background technology, central air conditioning has functions such as centralized air processing, reducing indoor temperature, regulating indoor humidity and airflow speed, removing pollutants such as dust and bacteria from indoor air, and replenishing indoor fresh air. It is a widely used air conditioning system in modern buildings.

[0063] However, indoor units of central air conditioning systems are prone to automatic start-up. Because the control system of central air conditioning is large and complex, and there may be multiple control devices from different manufacturers in the central air conditioning system, it is difficult to determine whether the indoor unit has started up abnormally.

[0064] Therefore, how to automatically determine whether the indoor unit is abnormally turned on is an urgent problem to be solved.

[0065] Under normal circumstances, the indoor unit only turns on after receiving a start-up control command from the start-up initiator. Therefore, if the start-up control command issued by the start-up initiator is inconsistent with the start-up notification message returned by the indoor unit, it indicates that the indoor unit has started up abnormally; conversely, if the start-up control command issued by the start-up initiator is consistent with the start-up notification message returned by the indoor unit, it indicates that the indoor unit has started up normally. To address this, this application automatically determines whether the central air conditioning system has started up abnormally by comparing the content of the start-up notification message and the start-up control command. Furthermore, in this application, the start-up notification message indicates the start-up initiator that triggered the indoor unit's start-up; therefore, in the event of an abnormal start-up, the source of the start-up control command for the abnormal start-up can also be determined based on the content of the start-up notification message.

[0066] The central air conditioning provided in this application embodiment can be a water-cooled air conditioner, an air-cooled multi-split air conditioner, etc., and this application embodiment does not impose any restrictions on it.

[0067] To further describe the technical solutions of the embodiments of this application, as follows: Figure 1 The diagram shown is a structural diagram of a central air conditioning system provided in an embodiment of this application.

[0068] Reference Figure 1 The central air conditioning system 1 includes at least one outdoor unit 10 and at least one indoor unit 20.

[0069] The following is a detailed explanation of the settings and functions of each component of outdoor unit 10.

[0070] In some embodiments, such as Figure 2 As shown, the outdoor unit 10 includes an outdoor heat exchanger 101. One end of the outdoor heat exchanger 101 is connected to the compressor via a four-way reversing valve, and the other end is connected to each indoor heat exchanger via connecting pipes. The outdoor heat exchanger 101 is used to facilitate heat exchange between the refrigerant flowing in the heat transfer tubes of the outdoor heat exchanger 101 and the outdoor air.

[0071] In some embodiments, continue as follows Figure 2 As shown, the outdoor unit 10 also includes a compressor 102. The compressor 102 is located between each indoor heat exchanger and the outdoor heat exchanger 101, and is used to provide power for the refrigerant circulation. Taking the refrigeration cycle as an example, the compressor 102 delivers the compressed refrigerant to the outdoor heat exchanger 101 via a four-way reversing valve 103.

[0072] In some embodiments, continue as follows Figure 2As shown, the outdoor unit 10 also includes a four-way reversing valve 103. The four ports of the four-way reversing valve 103 are respectively connected to the exhaust port of the compressor 102, the outdoor heat exchanger 101, the suction port of the compressor 102, and each indoor heat exchanger. The four-way reversing valve 103 is used to switch between cooling mode and heating mode by changing the flow direction of refrigerant in the system piping.

[0073] In some embodiments, continue as follows Figure 2 As shown, the outdoor unit 10 also includes an outdoor throttling device 104. The outdoor throttling device 104 is located between the outdoor heat exchanger 101 and each indoor heat exchanger, and has the effect of throttling the refrigerant flowing through it to reduce pressure, thereby regulating the refrigerant flow rate in the refrigerant path. Optionally, the outdoor throttling device 104 can be an electronic expansion valve. If the outdoor throttling device 104 decreases its opening, the flow resistance of the refrigerant through it increases. If the outdoor throttling device 104 increases its opening, the flow resistance decreases. Thus, even if the states of other components in the circuit remain unchanged, the refrigerant flow rate to the indoor heat exchanger 201 or the outdoor heat exchanger 101 will change when the opening of the outdoor throttling device 104 changes.

[0074] In some embodiments, continue as follows Figure 2 As shown, the outdoor unit 10 also includes a gas-liquid separator 105. The gas-liquid separator 105 is connected to the suction port of the compressor 102 and is used to contain the refrigerant in the liquid return section of the refrigerant passage to prevent liquid slugging of the compressor 102.

[0075] The following is a detailed explanation of the settings and functions of each component of the indoor unit 20.

[0076] In some embodiments, such as Figure 3 As shown, the indoor unit 20 includes an indoor heat exchanger 201. The indoor heat exchanger 201 is used to exchange heat between the refrigerant flowing in the heat transfer tubes of the indoor heat exchanger 201 and the indoor air.

[0077] In some embodiments, continue as follows Figure 3 As shown, the indoor unit 20 also includes an indoor throttling device 202. The indoor throttling device 202 is connected to the indoor heat exchanger 201 and is used to throttle the refrigerant flowing through it, thereby reducing pressure and regulating the refrigerant flow rate in the refrigerant path. Optionally, the indoor throttling device 202 can be an electronic expansion valve.

[0078] In this application, the air conditioning system executes a refrigeration cycle by using a compressor 102, an outdoor heat exchanger 101, a throttling device 104, an indoor heat exchanger 201, and a four-way reversing valve 103 as a refrigerant circulation loop. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0079] Indoor heat exchanger 201 and outdoor heat exchanger 101 are used as condensers or evaporators. When indoor heat exchanger 201 is used as a condenser, the central air conditioning system 1 is used as a heater in heating mode. When indoor heat exchanger 201 is used as an evaporator, the central air conditioning system 1 is used as a cooler in cooling mode.

[0080] Optionally, the indoor unit 20 may also include a dry contact connection device. When the central air conditioning system 1 is linked with the linkage equipment, the dry contact connection device receives a contact switch signal, and the indoor unit 20 receives the start-up control command sent by the linkage equipment.

[0081] In some embodiments, the central air conditioning system 1 may further include a central controller 30. For example... Figure 4 As shown, the central controller 30 establishes a communication connection with the outdoor unit 10 and each indoor unit 20 through the communication device 50, thereby realizing the control of the outdoor unit 10 and the indoor unit 20.

[0082] Optional, such as Figure 5 As shown, the central controller 30 may also include a dry contact access device 60. When the central air conditioning system 1 is linked with the linkage equipment, the dry contact access device 60 receives a contact switch signal, and the central controller 30 sends a start-up control command to all indoor units 20.

[0083] Optionally, the central controller 30 is used to receive the power-on notification message sent by the indoor unit 20 after power-on; if the power-on initiator indicated by the power-on notification message is the central controller 30, it compares whether the power-on notification message and the power-on control command are consistent; if the power-on notification message and the power-on control command are inconsistent, it sends a power-off command to the indoor unit 20.

[0084] Among them, the power-on notification message is used to indicate the power-on initiator that triggers the indoor unit 20 to power on, and the power-on control command is the power-on control command most recently sent by the central controller 30.

[0085] In some embodiments, the power-on notification message is stored in the indoor unit 20. The structure of the power-on notification message can be as shown in Table 1 below, with fields such as "frame header", "power-on initiator identifier", "power-on reason" and "frame tail".

[0086] Table 1

[0087] Frame header Boot initiator identifier Reason for powering on Frame end

[0088] In some embodiments, the power-on control command is stored in the central controller 30. The structure of the power-on control command may include the fields "frame header", "power-on flag", "power-on initiator identifier", "power-on reason", "other fields" and "frame tail" as shown in Table 2 below.

[0089] Table 2

[0090] Frame header Power-on logo Boot initiator identifier Reason for powering on Other fields Frame end

[0091] As one possible implementation, the indoor unit 20 sends a power-on notification message to the central controller 30 when it detects a power-on trigger.

[0092] Optionally, the power-on initiator identifier can be a preset identifier for the power-on initiator, which indicates the source of the power-on control command. For example, the power-on initiator identifier could be "central controller," "wired controller 01," "wired controller 02," "terminal device 01," "terminal device 02," etc. The power-on reason is the reason for the power-on cooling sent by each power-on initiator. For example, the power-on reason could be "user selection trigger," "timed task trigger," "schedule setting trigger," "dry contact signal access," etc.

[0093] In some embodiments, inconsistency between the power-on notification message and the power-on control command includes at least one of the following: the power-on initiator identifier in the power-on notification message is inconsistent with the power-on initiator identifier in the power-on control command; the power-on reason in the power-on notification message is inconsistent with the power-on reason in the power-on control command.

[0094] Example 1: In the power-on control command, the "Power-on Initiator Identifier" is empty, and the "Power-on Reason" is any value; in the power-on notification message, the "Power-on Initiator Identifier" is "Central Controller," and the "Power-on Reason" is any value. The power-on initiator identifier in the power-on control command is inconsistent with that in the power-on notification message, meaning the power-on control command and the power-on notification message are inconsistent. Since the "Power-on Initiator Identifier" in the power-on control command is empty, while the "Power-on Initiator Identifier" in the power-on notification message is "Central Controller," it indicates that the central controller 30 in the central air conditioning system 1 did not send a power-on control command to the indoor unit 20. The indoor unit 20 may have received a power-on control command sent by a third-party central controller. Therefore, the reason for the indoor unit 20 starting up may be an instruction from the third-party central controller.

[0095] Example 2: In the power-on control command, the "Power-on Initiator Identifier" is "Central Controller" and the "Power-on Reason" is "None"; in the power-on notification message, the "Power-on Initiator Identifier" is "Central Controller" and the "Power-on Reason" is any value. The power-on reason in the power-on control command is inconsistent with the power-on reason in the power-on notification message. When the power-on reason in the power-on control command and the power-on notification message are inconsistent, it indicates that the central controller 30 sent a power-on control command to the indoor unit 20, but without a definite power-on reason. This suggests that the central controller 30 itself has malfunctioned, causing an abnormal power-on.

[0096] In some embodiments, the central controller 30 can also be used to delete the power-on control command when the power-on notification message and the power-on control command are consistent.

[0097] Example 1: In the power-on control command, the "power-on initiator identifier" is "central controller" and the "power-on reason" is "user-selected trigger"; in the power-on notification message, the "power-on initiator identifier" is "central controller" and the "power-on reason" is "user-selected trigger". The power-on initiator identifier and power-on reason in the power-on notification message and the power-on control command are consistent, that is, the power-on notification message and the power-on control command are consistent, indicating that the indoor unit 20 is powered on normally by the user controlling the central controller, and the central controller 30 deletes the power-on control command.

[0098] Example 2: In the power-on control command, the "power-on initiator identifier" is "central controller" and the "power-on reason" is "dry contact signal access"; in the power-on notification message, the "power-on initiator identifier" is "central controller" and the "power-on reason" is "dry contact signal access". The power-on initiator identifier and power-on reason in the power-on notification message and the power-on control command are consistent, that is, the power-on notification message and the power-on control command are consistent, indicating that the indoor unit 20 is a normal power-on caused by the closing of the dry contact of the central controller. The central controller 30 deletes the power-on control command.

[0099] As can be seen from the above embodiments, when the power-on notification message and the power-on control command are consistent, it indicates that the power-on control command used to instruct the indoor unit to trigger power-on is normally initiated by the power-on initiator, and the indoor unit is normally powered on. In this case, the central controller 30 in this embodiment deletes the power-on control command, so that the central controller 30 can store a new power-on control command.

[0100] In some embodiments, the central controller 30 can also be used to send a shutdown command to the indoor unit when the power-on initiator identifier in the power-on notification message is empty.

[0101] If the power-on initiator identifier in the power-on notification message is empty, it indicates that the indoor unit is malfunctioning, causing the indoor unit to power on abnormally. In this case, this application can send a power-off command to the indoor unit to avoid economic losses to users caused by the abnormal power-on of the indoor unit.

[0102] Optionally, the central controller 30 can also be used to send a prompt message to the cloud server indicating that the indoor unit 20 has abnormally started up, in the event of inconsistency between the power-on notification message and the power-on control command. For example, this prompt message may include the reason for the abnormal power-on of the indoor unit and a prompt for the user to perform maintenance.

[0103] In other embodiments, the central air conditioning system 1 may also include at least one wired controller 40. For example... Figure 6 As shown, each wired controller 40 establishes a communication connection with the corresponding indoor unit 20 through the communication device 50, thereby controlling the indoor unit 20.

[0104] Optionally, the wired controller 40 is used to receive the power-on notification message sent by the indoor unit 20 after power-on; if the power-on initiator indicated by the power-on notification message is the wired controller 40, it compares whether the power-on notification message and the power-on control command are consistent; if the power-on notification message and the power-on control command are inconsistent, it sends a power-off command to the indoor unit 20.

[0105] The power-on notification message is used to indicate the power-on initiator that triggers the indoor unit 20 to power on, and the power-on control command is the most recently sent power-on control command from the wired controller 40. The contents of the power-on notification message and the power-on control command can be found in Tables 1 and 2 above, and will not be repeated here.

[0106] Example 1: In the power-on control command, the "Power-on Initiator Identifier" is empty, and the "Power-on Reason" is any value. In the power-on notification message, the "Power-on Initiator Identifier" is "Wired Controller 01," and the "Power-on Reason" is any value. The power-on initiator identifier in the power-on control command is inconsistent with that in the power-on notification message, meaning the power-on notification message and the power-on control command are inconsistent. Since the "Power-on Initiator Identifier" in the power-on notification message is "Wired Controller 01," while the "Power-on Initiator Identifier" in the power-on control command is empty, it indicates that the wired controller 40 in the central air conditioning system 1 did not send a power-on control command to the indoor unit 20. The indoor unit 20 may have received a power-on control command sent by a third-party wired controller. Therefore, the reason for the abnormal power-on of the indoor unit 20 may be that the third-party wired controller instructed it to be powered on.

[0107] Example 2: In the power-on control command, the "Power-on Initiator Identifier" is "Wired Controller 01" and the "Power-on Reason" is empty; in the power-on notification command, the "Power-on Initiator Identifier" is "Wired Controller 01" and the "Power-on Reason" is any value. The power-on reason in the power-on control command is inconsistent with the power-on reason in the power-on notification message, meaning the power-on notification message and the power-on control command are inconsistent. When the power-on reason in the power-on notification message and the power-on control command is inconsistent, it indicates that the wired controller 40 sent a power-on control command to the indoor unit 20, but without a definite power-on reason. It can be determined that the wired controller 40 itself is malfunctioning, incorrectly instructing the indoor unit 20 to power on, causing the indoor unit 20 to power on abnormally.

[0108] Optionally, the wired controller 40 can also be used to send a prompt message to the cloud server indicating that the indoor unit 20 has abnormally started up, in the event of a discrepancy between the power-on notification message and the power-on control command. For example, the prompt message may include, Figure 7 The following is a description of the indoor unit's abnormal startup and the user's troubleshooting instructions: "Startup control command: Startup initiator identifier is wired controller 01; Startup reason is null; Startup notification command: Startup initiator identifier is wired controller 01; Startup reason is --. Please note that wired controller 01 is abnormal, and the indoor unit has started abnormally!"

[0109] In some embodiments, the wired controller 40 can also be used to delete the power-on control command when the power-on notification message and the power-on control command are consistent.

[0110] In some embodiments, the wired controller 40 can also be used to send a shutdown command to the indoor unit 20 when the power-on initiation terminal identifier in the power-on notification message is empty.

[0111] In some embodiments, the central air conditioning system 1 further includes a communication device 50. The communication device 50 is used to enable communication between the outdoor unit 10, the indoor unit 20, the central controller 30, and the wired controller 40.

[0112] Optionally, the communication device 50 may include an H-NET 1 / 2 communication bus and an H-NET A / B communication line. The indoor unit 20 and the outdoor unit 10 are connected via the H-NET 1 / 2 communication bus to enable communication between them; the indoor unit 20 and the central controller 30 are connected via the H-NET 1 / 2 communication bus to enable communication between them; each wired controller 40 communicates point-to-point with the indoor unit 20 via the H-NET A / B communication line.

[0113] In some embodiments, the communication device 50 is also used to enable communication between the central controller 30, the wired controller 40 and the cloud server and terminal devices.

[0114] Optionally, the communication device 50 may also include a radio frequency (RF) module, a cellular module, a wireless fidelity (WIFI) module, and a GPS module. Taking the RF module as an example, the RF module can be used for signal reception and transmission. Specifically, it sends the received information to the central controller 30 or the wired controller 40 for processing; in addition, it transmits the signals generated by the central controller 30 and the wired controller 40. Typically, the RF circuit may include, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc.

[0115] For example, the central controller 30 establishes a communication connection with the cloud server via a network cable or Wi-Fi. The central controller 30 receives the power-on control command sent by the cloud server through the communication device 50, performs protocol parsing on the power-on control command, and then sends the parsed power-on control command to each indoor unit 20 through the communication device 50.

[0116] Figure 8 The diagram shown is a structural schematic of a cloud server provided in this application. Figure 8 As shown, the cloud server 2 may include a communication device 21, a memory 22, and a processor 23.

[0117] In some embodiments, such as Figure 9 As shown, the cloud server 2 establishes a communication connection with the central air conditioning system 1 through the communication device 21. The cloud server 2 can receive the prompt information sent by the central air conditioning system 1 to indicate that the indoor unit 20 is abnormally turned on through the communication device 21.

[0118] In other embodiments, the communication device 21 can also be used to establish a communication connection with a terminal device, through which the cloud server 2 can receive the start-up control command for the central air conditioning system 1 sent by the terminal device.

[0119] The communication device 21 may include a radio frequency (RF) module, a cellular module, a wireless fidelity (WIFI) module, and a GPS module, etc. Taking the RF module as an example, the RF module can be used for signal reception and transmission; specifically, it sends the received information to the processor 23 for processing; in addition, it transmits the signals generated by the processor 23. Typically, the RF circuit may include, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc.

[0120] In some embodiments, memory 22 can be used to store software programs and data. Processor 23 executes various functions of cloud server 2 and data processing by running software programs or data stored in memory 22. Memory 22 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Memory 22 stores an operating system that enables processor 23 to run. In this application, memory 22 may store the operating system and various applications, and may also store code that executes the control method of the central air conditioning provided in the embodiments of this application.

[0121] In some embodiments, the processor 23 is configured to receive a power-on notification message sent by the indoor unit 20 after power-on; if the power-on initiator indicated by the power-on notification message is the cloud server 2, compare whether the power-on notification message and the power-on control command are consistent; if the power-on notification message and the power-on control command are inconsistent, send a power-off command to the indoor unit 20.

[0122] The power-on notification message is used to instruct the power-on initiator that triggers the indoor unit 20 to power on, and the power-on control command is the most recently sent power-on control command from the cloud server 2. The contents of the power-on notification message and the power-on control command can be found in Tables 1 and 2 above, and will not be repeated here.

[0123] As one possible implementation, the central controller 30 receives a power-on notification message sent by the indoor unit 20 after power-on. If the power-on initiator indicated in the notification message is the cloud server 2, the central controller 30 sends a power-on notification message to the cloud server 2. The cloud server 2 compares the power-on notification message with the power-on control command; if they do not match, the cloud server 2 sends a power-off command to the central controller 30. The central controller 30 performs protocol parsing on the power-off command and sends the parsed power-off command to the indoor unit 20.

[0124] In some embodiments, the processor 23 is further configured to delete the power-on control command if the power-on notification message and the power-on control command are consistent.

[0125] In some embodiments, the processor 23 is further configured to, when the power-on initiator indicated by the power-on notification message is a linkage device, compare whether the power-on notification message and the linkage power-on control command are consistent; and when the power-on notification message and the linkage power-on control command are inconsistent, send a power-off command to the indoor unit 20.

[0126] Among them, the linkage start-up control command is the most recently sent start-up control command from the linkage device.

[0127] For example, in the power-on notification message, the "power-on initiator identifier" is "linked device" and the "power-on reason" is "dry contact signal access"; in the linked power-on control command, the "power-on initiator identifier" is "linked device" and the "power-on reason" is "dry contact signal access", meaning the power-on notification message and the linked power-on control command are consistent. In the power-on notification message, the "power-on initiator identifier" is empty and the "power-on reason" is any value; in the linked power-on control command, the "power-on initiator identifier" is "linked device" and the "power-on reason" is "dry contact signal access", meaning the power-on notification message and the linked power-on control command are inconsistent.

[0128] In some embodiments, the processor 23 is also configured to send a shutdown command to the indoor unit 20 if the power-on initiation terminal indicated by the power-on notification message is null.

[0129] The control device in this embodiment can also be a terminal device. The terminal device communicates with the cloud server. The cloud server sends the control commands received from the terminal device to the central controller 30 to realize the control of the central air conditioner 1 by the terminal device.

[0130] When the control device is a terminal device, the implementation steps of the central air conditioning control method provided in this application embodiment can refer to the implementation steps of the central air conditioning control method when the control device is a cloud server, and will not be repeated here. The terminal device can be, for example, a terminal device such as a cloud server. Figure 10 The mobile phone shown has an application installed on it that can remotely monitor and manage the central air conditioning system. Through this application, the system can send start-up control commands to the central air conditioning system and receive prompts indicating abnormal start-up of the indoor unit.

[0131] It should be noted that the terminal device in this application can be any electronic device that establishes a communication connection with the central air conditioning system, such as a laptop, tablet, mobile phone, or laptop computer. Figure 10 The terminal device mentioned is a mobile phone, which is merely illustrative. This application does not limit the specific form of the terminal device.

[0132] The control device in the embodiments of this application may also be as follows: Figure 11 The third-party wired controller shown communicates with the indoor unit 20. The third-party wired controller sends control commands to the indoor unit 20 to control it. When the control device is a third-party wired controller, the implementation steps of the central air conditioning control method provided in this application embodiment can refer to the implementation steps of the central air conditioning control method when the control device is a wired controller, and will not be repeated here.

[0133] The control device in the embodiments of this application may also be as follows: Figure 12The third-party central controller shown communicates with both the indoor unit 20 and the outdoor unit 10. The central controller sends control commands to the indoor unit 20 and the outdoor unit 10 to control them. When the control device is a third-party central controller, the implementation steps of the central air conditioning control method provided in this application embodiment can refer to the implementation steps of the central air conditioning control method when the control device is a central controller, and will not be repeated here.

[0134] In some embodiments, the control device, such as those described in this application, may include a controller. A controller is a device that can generate operation control signals based on instruction opcodes and timing signals, instructing the central air conditioning unit 1 to execute control commands. Exemplarily, the controller may be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The controller may also be other devices with processing functions, such as circuits, devices, or software modules; this application does not impose any limitations on these aspects.

[0135] In some embodiments, the controller can be a microcontroller unit (MCU). An MCU, also known as a single-chip microcomputer, is a chip-level computer that integrates a central processing unit (CPU) with appropriately reduced frequency and specifications, along with peripheral interfaces such as memory, timer, USB, A / D converter, UART, PLC, DMA, and even LCD driver circuitry, all onto a single chip. This allows for different combinations of control for various applications.

[0136] In addition, the controller can be used to control the operation of each component in the central air conditioning 1, so that each component of the central air conditioning 1 can operate to achieve each predetermined function of the central air conditioning 1.

[0137] It is understood that the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the central air conditioning system or the cloud server. In other embodiments of this application, the central air conditioning system or the cloud server may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0138] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0139] like Figure 13 As shown, this application provides a control method for a central air conditioning system, applied to a control device. It should be noted that the control device in this application can be one of a wired controller, a central controller, a terminal device, or a cloud server. The method includes the following steps S1-S3:

[0140] S1. Receive the power-on notification message sent by the indoor unit after it is powered on.

[0141] The power-on notification message is used to indicate the power-on initiator that triggers the indoor unit to power on.

[0142] S2. If the power-on initiator indicated in the power-on notification message is a control device, compare whether the power-on notification message and the power-on control command are consistent.

[0143] Among them, the power-on control command is the most recently sent power-on control command from the control device.

[0144] Optionally, inconsistencies between the power-on notification message and the power-on control command include at least one of the following: the power-on initiator identifier in the power-on notification message is inconsistent with the power-on initiator identifier in the power-on control command; or the power-on reason in the power-on notification message is inconsistent with the power-on reason in the power-on control command.

[0145] S3. In the event of a discrepancy between the power-on notification message and the power-on control command, a power-off command is sent to the indoor unit.

[0146] Figure 13 The illustrated embodiment offers at least the following advantages: Under normal circumstances, the indoor unit only starts up after receiving a start-up control command from the start-up initiator. Therefore, if the start-up control command issued by the start-up initiator is inconsistent with the start-up notification message returned by the indoor unit, it indicates that the indoor unit has started up abnormally; conversely, if the start-up control command issued by the start-up initiator is consistent with the start-up notification message returned by the indoor unit, it indicates that the indoor unit has started up normally. To address this, this application automatically determines whether the central air conditioning system has started up abnormally by comparing the content of the start-up notification message and the start-up control command. Furthermore, in this application, the start-up notification message indicates the start-up initiator that triggered the indoor unit's start-up; therefore, when an abnormal start-up occurs, the source of the start-up control command for the abnormal start-up can also be determined based on the content of the start-up notification message.

[0147] In some embodiments, such as Figure 14 As shown, the central air conditioning control method provided in this application embodiment further includes step S4: deleting the start-up control command when the start-up notification message and the start-up control command are consistent.

[0148] Optionally, when the control device is a cloud server, the central air conditioning control method provided in this application embodiment further includes: when the start-up initiator indicated by the start-up notification message is a linkage device, comparing whether the start-up notification message and the linkage start-up control command are consistent, wherein the linkage start-up control command is the most recently sent start-up control command by the linkage device; and when the start-up notification message and the linkage start-up control command are inconsistent, sending a shutdown command to the indoor unit.

[0149] In some embodiments, the central air conditioning control method provided in this application further includes sending a shutdown command to the indoor unit when the startup initiator identifier in the startup notification message is empty.

[0150] In some embodiments, when the control device is a control device other than a cloud server, the central air conditioning control method of this application embodiment further includes sending a power-on control command and a power-on notification command to the cloud server to form a power-on log; when the control device is a cloud server, the cloud server stores the power-on control command and the power-on notification command to form a power-on log.

[0151] As can be seen, the above mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the embodiments of this application provide corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0152] This application embodiment can divide the controller into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0153] This application also provides a computer-readable storage medium including computer-executable instructions that, when run on a computer, cause the computer to execute any of the central air conditioning control methods provided in the above embodiments.

[0154] This application also provides a computer program product containing computer execution instructions, which, when run on a computer, causes the computer to execute any of the central air conditioning control methods provided in the above embodiments.

[0155] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer-executable instructions. When these computer-executable instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer-executable instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer-executable instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs).

[0156] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0157] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely illustrative descriptions of the application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0158] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A control method for a central air conditioning system, characterized in that, Applied to a control device, the method includes: Receive a power-on notification message sent by the indoor unit after it is powered on, the power-on notification message being used to indicate the power-on initiator that triggers the indoor unit to power on; If the power-on initiator indicated by the power-on notification message is the control device, compare whether the power-on notification message and the power-on control command are consistent, wherein the power-on control command is the most recently sent power-on control command by the control device. If the power-on notification message and the power-on control command are inconsistent, a power-off command is sent to the indoor unit.

2. The method according to claim 1, characterized in that, The method further includes: If the power-on notification message and the power-on control command are consistent, delete the power-on control command.

3. The method according to claim 1, characterized in that, The inconsistency between the power-on notification message and the power-on control command includes at least one of the following: The power-on initiator identifier in the power-on notification message is inconsistent with the power-on initiator identifier in the power-on control command; The reason for powering on in the power-on notification message is inconsistent with the reason for powering on in the power-on control command.

4. The method according to claim 1, characterized in that, The control device is one of the following: a wired controller, a central controller, a terminal device, and a cloud server.

5. The method according to claim 4, characterized in that, The control device is a cloud server, and the method further includes: If the power-on initiator indicated by the power-on notification message is a linkage device, compare whether the power-on notification message and the linkage power-on control command are consistent, wherein the linkage power-on control command is the power-on control command most recently sent by the linkage device. If the power-on notification message and the linkage power-on control command are inconsistent, a power-off command is sent to the indoor unit.

6. The method according to claim 1, characterized in that, The method further includes: If the power-on initiator identifier in the power-on notification message is empty, a power-off command is sent to the indoor unit.

7. A central air conditioning system, characterized in that, include: At least one indoor unit; At least one outdoor unit; The control device is configured as follows: Receive a power-on notification message sent by the indoor unit after it is powered on, the power-on notification message being used to indicate the power-on initiator that triggers the indoor unit to power on; If the power-on initiator indicated by the power-on notification message is the control device, compare whether the power-on notification message and the power-on control command are consistent, wherein the power-on control command is the most recently sent power-on control command by the control device. If the power-on notification message and the power-on control command are inconsistent, a power-off command is sent to the indoor unit.

8. The central air conditioning system according to claim 7, characterized in that, The control device is also configured to: If the power-on notification message and the power-on control command are consistent, delete the power-on control command.

9. The central air conditioning system according to claim 7, characterized in that, The inconsistency between the power-on notification message and the power-on control command includes at least one of the following: The power-on initiator identifier in the power-on notification message is inconsistent with the power-on initiator identifier in the power-on control command; The reason for powering on in the power-on notification message is inconsistent with the reason for powering on in the power-on control command.

10. A cloud server, characterized in that, include: Communication device for establishing a communication connection with the indoor unit of a central air conditioning system; The processor is configured as follows: Receive a power-on notification message sent by the indoor unit after it is powered on, the power-on notification message being used to indicate the power-on initiator that triggers the indoor unit to power on; If the power-on initiator indicated by the power-on notification message is a control device, compare whether the power-on notification message and the power-on control command are consistent, wherein the power-on control command is the most recently sent power-on control command by the control device. If the power-on notification message and the power-on control command are inconsistent, a power-off command is sent to the indoor unit.

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