Wind frequency linkage control method, indoor host, air processing system and storage medium

Abstract

The invention discloses an air frequency linkage control method, an indoor host, an air processing system and a storage medium, the air frequency linkage control method is applied to the air processing system, the air processing system comprises a first outdoor unit subsystem and a second outdoor unit subsystem, the first outdoor unit subsystem comprises an outdoor fan and a first compressor, and the second outdoor unit subsystem comprises a second compressor and a third compressor. The second outdoor unit subsystem comprises a second compressor, and the wind frequency linkage control method comprises the steps that under the condition that only the second outdoor unit subsystem needs to be started, the second compressor is controlled to be started according to the preset safety frequency, and the outdoor fan is controlled to be started according to the preset safety frequency; and under the condition that it is determined that the second compressor and the outdoor fan are normally started, the second compressor is controlled to operate according to the actual required frequency of the air treatment system, and the outdoor fan is controlled to operate according to the actual feedback frequency of the second compressor.

Description

Technical Field

[0001] The present application relates to the field of air treatment technology, and in particular to a wind-frequency linkage control method, an indoor host, an air treatment system and a storage medium. Background Art

[0002] In the related art, the fresh air system includes an indoor main unit and two outdoor unit subsystems, one of which includes an outdoor fan. When one of the two outdoor unit subsystems is started and the feedback frequency is not 0, the outdoor fan runs. Since the outdoor fan is not in the other outdoor unit subsystem, when the outdoor fan does not run normally due to the outdoor unit subsystem's own fault or communication delay, the load of the outdoor unit subsystem will heat up, and the system coil, IPM (Intelligent Power Module) and other devices or components will be overloaded, thereby causing damage to the outdoor unit subsystem.

[0003] In order to solve the above problem, when only the outdoor unit subsystem without the outdoor fan is running, the feedback frequency is replaced by a given target frequency, that is, when the target frequency of the outdoor unit subsystem is not 0, the outdoor fan is started. However, there is a correlation between the outdoor fan speed and the target frequency, and the target frequency is often not equal to or even very different from the actual demand frequency, which will cause the outdoor fan speed to be inconsistent with the actual demand. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first object of the present invention is to propose a wind-frequency linkage control method, in which the second compressor is controlled to operate according to the actual demand frequency, and the outdoor fan is controlled to operate according to the actual feedback frequency when the second compressor and the outdoor fan can be started normally. The outdoor fan is controlled according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual demand speed.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] The third object of the present invention is to provide an indoor host.

[0007] A fourth objective of the present invention is to provide an air treatment system.

[0008] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, a wind-frequency linkage control method is proposed, which is applied to an air treatment system, wherein the air treatment system includes a first outdoor unit subsystem and a second outdoor unit subsystem, the first outdoor unit subsystem includes an outdoor fan and a first compressor, and the second outdoor unit subsystem includes a second compressor. The method includes: when only the second outdoor unit subsystem needs to be turned on, controlling the second compressor to start according to a preset safety frequency, and controlling the outdoor fan to start according to the preset safety frequency; when it is determined that the second compressor and the outdoor fan are started normally, controlling the second compressor to operate according to the actual demand frequency of the air treatment system, and controlling the outdoor fan to operate according to the actual feedback frequency of the second compressor.

[0009] According to the wind-frequency linkage control method of an embodiment of the present invention, when only the second outdoor unit subsystem needs to be turned on, the second compressor is controlled to start according to a preset safety frequency, and the outdoor fan is controlled to start according to the preset safety frequency. When only the second compressor needs to be started, the second compressor and the outdoor fan are first controlled to start at the safety frequency, so that it can be determined whether there are faults in the second compressor and the outdoor fan. When the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual demand frequency of the air treatment system, and the outdoor fan is controlled to operate according to the actual feedback frequency of the second compressor. The second compressor is controlled according to the actual demand frequency, and the outdoor fan is controlled according to the actual feedback frequency. Therefore, the speed of the outdoor fan is consistent with the actual demand speed.

[0010] According to one embodiment of the present invention, before determining that the second compressor and the outdoor fan are started normally, the method also includes: judging whether the second compressor and the outdoor fan are started normally based on at least part of the actual feedback frequency of the second compressor, the IPM temperature driving the second compressor and the speed of the outdoor fan.

[0011] According to one embodiment of the present invention, whether the second compressor and the outdoor fan are started normally is judged based on at least part of the actual feedback frequency of the second compressor, the IPM temperature driving the second compressor and the speed of the outdoor fan, including: when the actual feedback frequency of the second compressor is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan is greater than a preset speed threshold, it is determined that the second compressor and the outdoor fan are started normally.

[0012] According to one embodiment of the present invention, when the actual feedback frequency of the second compressor is less than or equal to a preset frequency threshold, the method further includes: obtaining the startup duration of the second compressor; and when the startup duration of the second compressor is greater than the first preset startup duration, controlling the second compressor to stop working.

[0013] According to one embodiment of the present invention, when the actual feedback frequency of the second compressor is greater than a preset frequency threshold and the IPM temperature is greater than or equal to a preset temperature threshold, the method further includes: issuing a fault alarm prompt and controlling the second compressor and the outdoor fan to stop working.

[0014] According to one embodiment of the present invention, when the actual feedback frequency of the second compressor is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan is less than or equal to a preset speed threshold, the method also includes: obtaining the start-up duration of the outdoor fan; when the start-up duration of the outdoor fan is greater than a second preset start-up duration, controlling the second compressor to stop working.

[0015] According to one embodiment of the present invention, when the operating frequency of the second compressor meets the actual required frequency, it is determined that only the second outdoor unit subsystem needs to be turned on.

[0016] According to one embodiment of the present invention, the air treatment system further includes an indoor host, the indoor host is a fresh air blower, and the first outdoor unit subsystem and the second outdoor unit subsystem are in the same outdoor unit.

[0017] To achieve the above-mentioned purpose, according to a second aspect of the present invention, a computer-readable storage medium is provided, on which a wind-frequency linkage control program is stored. When the wind-frequency linkage control program is executed by a processor, the wind-frequency linkage control method of any of the aforementioned embodiments is implemented.

[0018] According to the computer-readable storage medium of an embodiment of the present invention, by executing a computer program of the above-mentioned wind-frequency linkage control method, when the second compressor and the outdoor fan can be started normally, the operation of the second compressor is controlled according to the actual demand frequency, and the operation of the outdoor fan is controlled according to the actual feedback frequency. The outdoor fan is controlled according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual demand speed.

[0019] To achieve the above-mentioned purpose, according to an embodiment of the third aspect of the present invention, an indoor host is proposed, including a memory, a processor, and a wind-frequency linkage control program stored in the memory and executable on the processor. When the processor executes the wind-frequency linkage control program, the wind-frequency linkage control method of any of the aforementioned embodiments is implemented.

[0020] According to the indoor host of an embodiment of the present invention, the computer program of the above-mentioned wind-frequency linkage control method is executed by the processor. When the second compressor and the outdoor fan can be started normally, the second compressor is controlled to operate according to the actual required frequency, and the outdoor fan is controlled to operate according to the actual feedback frequency. The outdoor fan is controlled according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual required speed.

[0021] To achieve the above-mentioned purpose, an air treatment system is proposed according to an embodiment of the fourth aspect of the present invention, comprising: a first outdoor unit subsystem, including an outdoor fan and a first compressor; a second outdoor unit subsystem, including a second compressor; an indoor host, configured to control the second compressor to start according to a preset safety frequency when only the second outdoor unit subsystem needs to be turned on, and to control the outdoor fan to start according to the preset safety frequency, and when it is determined that the second compressor and the outdoor fan are started normally, control the second compressor to operate according to the actual demand frequency of the air treatment system, and control the outdoor fan to operate according to the actual feedback frequency of the second compressor.

[0022] According to the air treatment system of an embodiment of the present invention, the indoor host controls the second compressor to start according to a preset safety frequency, and controls the outdoor fan to start according to the preset safety frequency when only the second outdoor unit subsystem needs to be turned on. When only the second compressor needs to be started, the second compressor and the outdoor fan are first controlled to start at the safety frequency, so that it can be determined whether there are faults in the second compressor and the outdoor fan. When the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual demand frequency of the air treatment system, and the outdoor fan is controlled to operate according to the actual feedback frequency of the second compressor. The second compressor is controlled according to the actual demand frequency, and the outdoor fan is controlled according to the actual feedback frequency. Therefore, the speed of the outdoor fan is consistent with the actual demand speed.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a system schematic diagram of an air treatment system according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a wind-frequency linkage control method according to an embodiment of the present invention;

[0026] Figure 3 is a system schematic diagram of an air handling system including an IPM module according to one embodiment of the present invention;

[0027] Figure 4 is a flow chart of a wind-frequency linkage control method according to a specific embodiment of the present invention;

[0028] Figure 5 4 is a system diagram of an indoor host according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] It should be noted that this application is made based on the inventor's understanding and research of the following issues:

[0031] In related technologies, such as Figure 1 As shown, the air handling system includes an indoor host 10, a first outdoor unit subsystem 20 and a second outdoor unit subsystem 30. The indoor host 10 is connected to the first outdoor unit subsystem 20 and the second outdoor unit subsystem 30 respectively to control the first outdoor unit subsystem 20 and the second outdoor unit subsystem 30. The first outdoor unit subsystem 20 includes a first outdoor sub-unit 21, an outdoor fan 22 and a first compressor 23, and the second outdoor unit subsystem 30 includes a second outdoor sub-unit 31 and a second compressor 32. The first outdoor unit subsystem 20 and the second outdoor unit subsystem 30 share the outdoor fan 22, that is, when the first compressor 23 is running, the outdoor fan 22 is running, and when the second compressor 32 is running, the outdoor fan 22 is also running.

[0032] During the operation of the air handling system, the second outdoor unit subsystem 30 may fail to communicate normally with the first outdoor unit subsystem 20 due to its own failure or communication delay, resulting in the outdoor fan 22 being unable to operate normally, thereby causing the load of the second outdoor unit subsystem 30 to be overloaded, and further causing damage to the second outdoor unit subsystem 30. Therefore, when only the second outdoor unit subsystem 30 needs to operate alone, the feedback frequency is replaced by a given target frequency, that is, when the target frequency of the second outdoor unit subsystem 30 is not 0, the outdoor fan 22 is started.

[0033] When the indoor host 10 controls the second outdoor unit subsystem 30 to start according to the actual demand frequency of the air treatment system, when the start frequency of the second outdoor unit subsystem 30 is relatively low, when the second outdoor unit subsystem 30 starts, if the second outdoor unit subsystem 30 fails or other failures occur in the air treatment system, the air treatment system will shut down and will not cause damage to the air treatment system; when the start frequency of the second outdoor unit subsystem 30 is relatively high, before the air treatment system shuts down, the components of the air treatment system may have been impacted, thereby damaging the air treatment system. In addition, when only the second outdoor unit subsystem 30 is started, the rotation speed of the outdoor fan 22 is related to the target frequency, and considering the needs of the second outdoor unit subsystem 30 itself, the target frequency is often not equal to or even very different from the actual demand frequency, which will cause the rotation speed of the outdoor fan 22 to be inconsistent with the actual demand.

[0034] Based on this, an embodiment of the present invention provides a wind-frequency linkage control method, an indoor host, an air treatment system and a storage medium. When the second compressor and the outdoor fan can be started normally, the second compressor is controlled to operate according to the actual required frequency, and the outdoor fan is controlled to operate according to the actual feedback frequency. The outdoor fan is controlled according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual required speed.

[0035] The wind-frequency linkage control method, indoor host, air handling system and storage medium of an embodiment of the present invention are described below with reference to the accompanying drawings.

[0036] Figure 2 FIG. 1 is a flow chart of a wind-frequency linkage control method according to an embodiment of the present invention. Figure 2 As shown, the wind-frequency linkage control method includes the following steps:

[0037] S101, when only the second outdoor unit subsystem needs to be turned on, controlling the second compressor to start according to a preset safety frequency, and controlling the outdoor fan to start according to the preset safety frequency.

[0038] Specifically, if the first outdoor unit subsystem and the second outdoor unit subsystem need to be turned on at the same time, because the first outdoor unit subsystem includes an outdoor fan, the outdoor fan can be started when the first outdoor unit subsystem is started, and there is no technical problem in the present application. In the case where only the second outdoor unit subsystem needs to be turned on, the second outdoor unit subsystem may not be able to communicate normally with the first outdoor unit subsystem due to problems such as failures or communication delays, resulting in the outdoor fan being unable to start normally. When the second compressor and the outdoor fan are started, the second compressor and the outdoor fan may have a fault and cannot start normally. Therefore, it is necessary to first control the start of the second compressor and the outdoor fan at a safe frequency to determine whether the second compressor and the outdoor fan have a fault, thereby avoiding damage to the second compressor and the outdoor fan due to a large start-up frequency.

[0039] In some embodiments, when the operating frequency of the second compressor meets the actual required frequency, it is determined that only the second outdoor unit subsystem needs to be turned on.

[0040] Specifically, the operating frequency of the first compressor is usually greater than the operating frequency of the second compressor. When the operating frequency of the second compressor can meet the actual required frequency, only the second outdoor unit subsystem can be turned on, which can save energy consumption of the air treatment system. If the operating frequency of the second compressor cannot meet the actual required frequency, only the second outdoor unit subsystem cannot be controlled to be turned on, and the first outdoor unit subsystem needs to be operated alone or the first outdoor unit subsystem and the second outdoor unit subsystem need to be operated simultaneously.

[0041] In an optional embodiment, after determining that only the second outdoor unit subsystem needs to be turned on, it is also necessary to determine whether the second compressor and the outdoor fan are in a fault shutdown state. If the second compressor and the outdoor fan are not in a fault shutdown state, the second compressor is controlled to start according to a preset safety frequency, and the outdoor fan is controlled to start according to the preset safety frequency.

[0042] S102, when it is determined that the second compressor and the outdoor fan are started normally, controlling the second compressor to operate according to the actual demand frequency of the air treatment system, and controlling the outdoor fan to operate according to the actual feedback frequency of the second compressor.

[0043] Specifically, when it is determined that the second compressor and the outdoor fan are started normally, it indicates that the second compressor and the outdoor fan are fault-free. The second compressor can be controlled to operate according to the actual demand frequency, and then the outdoor fan can be controlled to operate according to the actual feedback frequency. Because the second compressor operates according to the actual demand frequency and the outdoor fan operates according to the actual feedback frequency, the speed of the outdoor fan can match the actual demand speed.

[0044] In the above embodiment, when only the second compressor needs to be started, the second compressor and the outdoor fan are first controlled to start at a safe frequency, so as to determine whether there are faults in the second compressor and the outdoor fan. When the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual required frequency, and the outdoor fan is controlled to operate according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual required speed.

[0045] In some embodiments, before determining that the second compressor and the outdoor fan are started normally, the method also includes: judging whether the second compressor and the outdoor fan are started normally based on at least part of the actual feedback frequency of the second compressor, the IPM temperature driving the second compressor, and the speed of the outdoor fan.

[0046] Specifically, Figure 3 As shown, the second outdoor unit subsystem 30 also includes an IPM module 33, which is used to drive the second compressor 32 to operate. When the second compressor 32 is operating, the temperature of the IPM module 33 will rise. When the IPM temperature is greater than the preset temperature threshold, the high temperature protection will be triggered and the second compressor 32 will shut down. When the second compressor 32 fails, the actual feedback frequency will be abnormal; when the outdoor fan 22 is abnormal, the speed of the outdoor fan 22 will also be abnormal. Therefore, it can be determined whether the second compressor 32 and the outdoor fan 22 are started normally based on the actual feedback frequency, the IPM temperature and the speed of the outdoor fan 22.

[0047] In some embodiments, whether the second compressor and the outdoor fan are started normally is determined based on at least part of the actual feedback frequency of the second compressor, the IPM temperature driving the second compressor, and the speed of the outdoor fan, including: when the actual feedback frequency of the second compressor is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan is greater than a preset speed threshold, it is determined that the second compressor and the outdoor fan are started normally.

[0048] It can be understood that the actual feedback frequency is greater than the preset frequency threshold, indicating that the second compressor is started normally, the IPM temperature is lower than the preset temperature threshold, and the high temperature protection will not be triggered. The speed of the outdoor fan is greater than the preset speed threshold, indicating that the outdoor fan is started normally. Therefore, it can be determined that the second compressor and the outdoor fan are started normally.

[0049] It should be noted that the preset frequency threshold and the preset speed threshold may be 0, but are not limited to 0, and are not specifically limited here.

[0050] In some embodiments, when the actual feedback frequency of the second compressor is less than or equal to a preset frequency threshold, the method further includes: obtaining the startup duration of the second compressor; and when the startup duration of the second compressor is greater than the first preset startup duration, controlling the second compressor to stop working.

[0051] Specifically, if the actual feedback frequency of the second compressor is less than or equal to the preset frequency threshold, it indicates that the startup of the second compressor may be abnormal or the second compressor has not yet completed the startup. At this time, it is necessary to obtain the startup duration of the second compressor. If the startup duration of the second compressor is less than or equal to the first preset startup duration, the startup process of the second compressor has not yet been completed, and it is necessary to determine again whether the actual feedback frequency is greater than the preset frequency threshold until the startup duration of the second compressor is greater than the first preset startup duration. If the actual feedback frequency is still less than or equal to the preset frequency threshold, the startup of the second compressor is abnormal and there is a fault in the second compressor. Therefore, it is necessary to control the second compressor to stop working.

[0052] In some embodiments, when the actual feedback frequency of the second compressor is greater than a preset frequency threshold and the IPM temperature is greater than or equal to a preset temperature threshold, the method further includes: issuing a fault alarm prompt and controlling the second compressor and the outdoor fan to stop working.

[0053] Specifically, the actual feedback frequency is greater than the preset frequency threshold, indicating that the second compressor has been started normally and is in operation. When the second compressor is running, the IPM module will generate heat and the IPM temperature will rise. When the IPM temperature is greater than or equal to the preset temperature threshold, high temperature protection will be triggered, and the indoor host will issue a fault alarm and control the second compressor and the outdoor fan to stop working, thereby preventing the IPM temperature of the IPM module from further rising.

[0054] In some embodiments, when the actual feedback frequency of the second compressor is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan is less than or equal to a preset speed threshold, the method also includes: obtaining the start-up duration of the outdoor fan; when the start-up duration of the outdoor fan is greater than a second preset start-up duration, controlling the second compressor to stop working.

[0055] Specifically, when the second compressor starts normally and the IPM temperature is less than the preset temperature threshold, it is determined whether the outdoor fan starts normally. If the speed of the outdoor fan is less than or equal to the preset speed threshold, it indicates that the start-up of the outdoor fan may be abnormal or the outdoor fan has not yet completed the start-up. At this time, it is necessary to obtain the start-up duration of the outdoor fan. If the start-up duration of the outdoor fan is less than or equal to the second preset start-up duration, the start-up process of the outdoor fan has not yet been completed. It is necessary to determine again whether the speed of the outdoor fan is greater than the preset speed threshold until the start-up duration of the outdoor fan is greater than the second preset start-up duration. If the speed of the outdoor fan is still less than or equal to the preset speed threshold, the start-up of the outdoor fan is abnormal and the second compressor cannot be cooled. Therefore, it is necessary to control the second compressor to stop working to avoid the temperature of the second compressor from continuing to rise and causing damage to the second compressor.

[0056] In an optional embodiment, while controlling the second compressor to start according to a preset safety frequency and controlling the outdoor fan to start according to the preset safety frequency, it is also necessary to reset the frequency start timer and the outdoor fan speed timer. The frequency start timer is used to time the start time of the second compressor, and the outdoor fan speed timer is used to time the start time of the outdoor fan.

[0057] In some embodiments, the air handling system further includes an indoor host, the indoor host is a fresh air blower, and the first outdoor unit subsystem and the second outdoor unit subsystem are in the same outdoor unit.

[0058] It can be understood that the air treatment system can be a fresh air treatment system. When the air treatment system is a fresh air system, the indoor host is a fresh air fan, and the first outdoor unit subsystem and the second outdoor unit subsystem are in the same outdoor unit.

[0059] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods:

[0060] like Figure 4 As shown, the wind-frequency linkage control method includes the following steps:

[0061] S201, control the air handling system to start.

[0062] S202, determine whether the operating frequency of the second compressor meets the actual required frequency. If the operating frequency of the second compressor cannot meet the actual required frequency, execute step S203; if the operating frequency of the second compressor meets the actual required frequency, execute step S204.

[0063] S203, exit the function of only turning on the second outdoor unit subsystem.

[0064] S204, determining that only the second outdoor unit subsystem needs to be turned on.

[0065] S205, determine whether the second compressor and the outdoor fan are in a fault shutdown state. If the second compressor and the outdoor fan are in a fault shutdown state, execute step S203; if the second compressor and the outdoor fan are not in a fault shutdown state, execute step S206.

[0066] S206, controlling the second compressor to start according to a preset safety frequency, controlling the outdoor fan to start according to the preset safety frequency, and resetting the frequency start timer and the outdoor fan speed timer.

[0067] S207, determine whether the actual feedback frequency of the second compressor is greater than the preset frequency threshold. If the actual feedback frequency of the second compressor is greater than the preset frequency threshold, execute step S210; if the actual feedback frequency of the second compressor is less than or equal to the preset frequency threshold, execute step S208.

[0068] S208, determine whether the startup time of the second compressor is greater than the first preset startup time. If the startup time of the second compressor is less than or equal to the first preset startup time, return to step S207; if the startup time of the second compressor is greater than the first preset startup time, execute step S209.

[0069] S209, controlling the second compressor to stop working.

[0070] S210, determining whether the IPM temperature is greater than or equal to a preset temperature threshold, if the IPM temperature is greater than or equal to the preset temperature threshold, executing step S211, if the IPM temperature is less than the preset temperature threshold, executing step S212.

[0071] S211, a fault alarm is issued, and the second compressor and the outdoor fan are controlled to stop working.

[0072] S212, determine whether the speed of the outdoor fan is greater than the preset speed threshold. If the speed of the outdoor fan is less than or equal to the preset speed threshold, execute step S213; if the speed of the outdoor fan is greater than the preset speed threshold, execute step S214.

[0073] S213, determine whether the start-up time of the outdoor fan is greater than the second preset start-up time. If the start-up time of the outdoor fan is greater than the second preset start-up time, execute step S209. If the start-up time of the outdoor fan is less than or equal to the second preset start-up time, return to step S212.

[0074] S214, controlling the operation of the second compressor according to the actual demand frequency of the air treatment system, and controlling the operation of the outdoor fan according to the actual feedback frequency of the second compressor.

[0075] In the above embodiment, when only the second compressor needs to be started, the second compressor and the outdoor fan are first controlled to start at a safe frequency, so as to determine whether there are faults in the second compressor and the outdoor fan. When the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual required frequency, and the outdoor fan is controlled to operate according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual required speed.

[0076] In summary, according to the wind-frequency linkage control method of an embodiment of the present invention, when only the second outdoor unit subsystem needs to be turned on, the second compressor is controlled to start according to a preset safety frequency, and the outdoor fan is controlled to start according to the preset safety frequency. When only the second compressor needs to be started, the second compressor and the outdoor fan are first controlled to start at the safety frequency, so that it can be determined whether there are faults in the second compressor and the outdoor fan. When the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual demand frequency of the air treatment system, and the outdoor fan is controlled to operate according to the actual feedback frequency of the second compressor. The second compressor is controlled according to the actual demand frequency, and the outdoor fan is controlled according to the actual feedback frequency. Therefore, the speed of the outdoor fan is consistent with the actual demand speed.

[0077] Corresponding to the above embodiments, an embodiment of the present invention further provides a computer-readable storage medium on which a wind-frequency linkage control program is stored. When the wind-frequency linkage control program is executed by a processor, the wind-frequency linkage control method of any of the above embodiments is implemented.

[0078] According to the computer-readable storage medium of an embodiment of the present invention, by executing a computer program of the above-mentioned wind-frequency linkage control method, when the second compressor and the outdoor fan can be started normally, the operation of the second compressor is controlled according to the actual demand frequency, and the operation of the outdoor fan is controlled according to the actual feedback frequency. The outdoor fan is controlled according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual demand speed.

[0079] Corresponding to the above embodiment, the embodiment of the present invention further provides an indoor host. Figure 5As shown, the indoor host 100 includes a memory 110, a processor 120, and a wind-frequency linkage control program stored in the memory 110 and executable on the processor 120. When the processor 120 executes the wind-frequency linkage control program, the wind-frequency linkage control method of any of the aforementioned embodiments is implemented.

[0080] According to the indoor host of an embodiment of the present invention, the computer program of the above-mentioned wind-frequency linkage control method is executed by the processor. When the second compressor and the outdoor fan can be started normally, the second compressor is controlled to operate according to the actual required frequency, and the outdoor fan is controlled to operate according to the actual feedback frequency. The outdoor fan is controlled according to the actual feedback frequency, so that the speed of the outdoor fan is consistent with the actual required speed.

[0081] Corresponding to the above embodiment, the embodiment of the present invention further provides an air treatment system. Figure 1 As shown, the air handling system includes: a first outdoor unit subsystem 20 , a second outdoor unit subsystem 30 and an indoor host 10 .

[0082] Among them, the first outdoor unit subsystem 20 includes an outdoor fan 22 and a first compressor 23; the second outdoor unit subsystem 30 includes a second compressor 32; the indoor host 10 is configured to control the second compressor 32 to start according to a preset safety frequency when only the second outdoor unit subsystem 30 needs to be turned on, and control the outdoor fan 22 to start according to the preset safety frequency, and when it is determined that the second compressor 32 and the outdoor fan 22 are started normally, control the second compressor 32 to operate according to the actual demand frequency of the air treatment system, and control the outdoor fan 22 to operate according to the actual feedback frequency of the second compressor 32.

[0083] In some embodiments, the indoor host 10 is also configured to: before determining that the second compressor 32 and the outdoor fan 22 are started normally, determine whether the second compressor 32 and the outdoor fan 22 are started normally based on at least part of the actual feedback frequency of the second compressor 32, the IPM temperature driving the second compressor 32 and the speed of the outdoor fan 22.

[0084] In some embodiments, the indoor host 10 is also configured to determine that the second compressor 32 and the outdoor fan 22 are started normally when the actual feedback frequency of the second compressor 32 is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan 22 is greater than a preset speed threshold.

[0085] In some embodiments, the indoor host 10 is also configured to: obtain the startup duration of the second compressor 32 when the actual feedback frequency of the second compressor 32 is less than or equal to a preset frequency threshold; and control the second compressor 32 to stop working when the startup duration of the second compressor 32 is greater than the first preset startup duration.

[0086] In some embodiments, the indoor host 10 is also configured to issue a fault alarm and control the second compressor 32 and the outdoor fan 22 to stop working when the actual feedback frequency of the second compressor 32 is greater than a preset frequency threshold and the IPM temperature is greater than or equal to a preset temperature threshold.

[0087] In some embodiments, the indoor host 10 is also configured to: obtain the start-up duration of the outdoor fan 22 when the actual feedback frequency of the second compressor 32 is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan 22 is less than or equal to a preset speed threshold; and control the second compressor 32 to stop working when the start-up duration of the outdoor fan 22 is greater than the second preset start-up duration.

[0088] In some embodiments, when the operating frequency of the second compressor 32 meets the actual required frequency, it is determined that only the second outdoor unit subsystem 30 needs to be turned on.

[0089] In some embodiments, the indoor host 10 is a fresh air blower, and the first outdoor subsystem 20 and the second outdoor subsystem 30 are in the same outdoor unit.

[0090] It should be noted that the specific implementation of the air treatment system of the embodiment of the present invention corresponds one to one with the specific implementation of the wind-frequency linkage control method of the aforementioned embodiment of the present invention, and will not be repeated here.

[0091] According to the air treatment system of an embodiment of the present invention, the indoor host controls the second compressor to start according to a preset safety frequency, and controls the outdoor fan to start according to the preset safety frequency when only the second outdoor unit subsystem needs to be turned on. When only the second compressor needs to be started, the second compressor and the outdoor fan are first controlled to start at the safety frequency, so that it can be determined whether there are faults in the second compressor and the outdoor fan. When the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual demand frequency of the air treatment system, and the outdoor fan is controlled to operate according to the actual feedback frequency of the second compressor. The second compressor is controlled according to the actual demand frequency, and the outdoor fan is controlled according to the actual feedback frequency. Therefore, the speed of the outdoor fan is consistent with the actual demand speed.

[0092] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0093] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0094] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0095] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present invention, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0096] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific implementation situation.

[0097] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A wind frequency linkage control method, characterized in that: Applied to an air treatment system, the air treatment system includes a first outdoor unit subsystem and a second outdoor unit subsystem, the first outdoor unit subsystem includes an outdoor fan and a first compressor, the second outdoor unit subsystem includes a second compressor, the method includes: When only the second outdoor unit subsystem needs to be turned on, controlling the second compressor to start according to a preset safety frequency, and controlling the outdoor fan to start according to the preset safety frequency; When it is determined that the second compressor and the outdoor fan are started normally, the second compressor is controlled to operate according to the actual demand frequency of the air treatment system, and the outdoor fan is controlled to operate according to the actual feedback frequency of the second compressor.

2. The method according to claim 1, characterized in that Before determining that the second compressor and the outdoor fan are started normally, the method further includes: Whether the second compressor and the outdoor fan are started normally is determined based on at least part of an actual feedback frequency of the second compressor, a temperature of an IPM driving the second compressor, and a rotation speed of the outdoor fan.

3. The method according to claim 2, characterized in that Determining whether the second compressor and the outdoor fan are started normally according to at least part of the actual feedback frequency of the second compressor, the IPM temperature driving the second compressor, and the rotation speed of the outdoor fan includes: When the actual feedback frequency of the second compressor is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan is greater than a preset speed threshold, it is determined that the second compressor and the outdoor fan are started normally.

4. The method according to claim 3, characterized in that: When the actual feedback frequency of the second compressor is less than or equal to the preset frequency threshold, the method further includes: Obtaining the startup duration of the second compressor; When the startup time of the second compressor is longer than the first preset startup time, the second compressor is controlled to stop working.

5. The method according to claim 2, characterized in that: When the actual feedback frequency of the second compressor is greater than a preset frequency threshold and the IPM temperature is greater than or equal to a preset temperature threshold, the method further includes: A fault alarm is issued, and the second compressor and the outdoor fan are controlled to stop working.

6. The method according to claim 3, characterized in that When the actual feedback frequency of the second compressor is greater than a preset frequency threshold, the IPM temperature is less than a preset temperature threshold, and the speed of the outdoor fan is less than or equal to the preset speed threshold, the method further includes: Obtaining the startup time of the outdoor fan; When the startup time of the outdoor fan is longer than the second preset startup time, the second compressor is controlled to stop working.

7. The method according to any one of claims 1 to 6, characterized in that When the operating frequency of the second compressor meets the actual required frequency, it is determined that only the second outdoor unit subsystem needs to be turned on.

8. The method according to any one of claims 1 to 6, characterized in that The air treatment system also includes an indoor host, which is a fresh air blower. The first outdoor unit subsystem and the second outdoor unit subsystem are located in the same outdoor unit.

9. A computer-readable storage medium, characterized in that: A wind-frequency linkage control program is stored thereon, and when the wind-frequency linkage control program is executed by a processor, a wind-frequency linkage control method according to any one of claims 1-8 is implemented.

10. An indoor host, characterized in that: It comprises a memory, a processor and a wind-frequency linkage control program stored in the memory and executable on the processor. When the processor executes the wind-frequency linkage control program, the wind-frequency linkage control method according to any one of claims 1 to 8 is implemented.

11. An air treatment system, characterized in that: include: A first outdoor unit subsystem, including an outdoor fan and a first compressor; A second outdoor unit subsystem includes a second compressor; The indoor host is configured to control the second compressor to start according to a preset safety frequency when only the second outdoor unit subsystem needs to be turned on, and to control the outdoor fan to start according to the preset safety frequency, and when it is determined that the second compressor and the outdoor fan are started normally, control the second compressor to operate according to the actual demand frequency of the air treatment system, and control the outdoor fan to operate according to the actual feedback frequency of the second compressor.

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