Air conditioning noise control method, device, computer program product and air conditioning system

Abstract

The present application provides a method, device, computer program product and air conditioning system for controlling air conditioning noise, the method comprising: obtaining a compressor noise signal and a fan noise signal of the air conditioner; analyzing the compressor noise signal and the fan noise signal to obtain a compressor operating frequency and a fan rotation base frequency, wherein the compressor operating frequency is the frequency of a noise peak generated by the compressor operation, and the fan rotation base frequency is the frequency of a noise peak generated by the fan rotation; in the case where there is a difference between a multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold, determining that beat vibration occurs, the beat vibration difference threshold being the maximum frequency difference between the two noises generating beat vibration; adjusting the compressor operating frequency or the fan speed so that there is no difference between a multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold, thereby solving the problem of beat vibration noise occurring in air conditioning noise in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of noise control, and in particular to a method, device, computer program product and air conditioning system for controlling air conditioning noise. Background Art

[0002] The outdoor unit of the air conditioner is composed of a compressor, pipeline, fan system, controller system and structural parts. The fan system and compressor are the main vibration noise sources of the outdoor unit of the air conditioner. During the operation of the outdoor unit of the air conditioner, the fan system and the compressor generate a certain vibration frequency, which makes the air conditioner produce noise. The compressor operating frequency of the variable frequency air conditioner is wide, and the fan speed has different gears. When the fan rotation frequency is close to the compressor operating frequency, discontinuous beat noise will be generated, which seriously affects the sound quality of the outdoor unit. The traditional variable frequency air conditioner solves the beat vibration by shielding the compressor operating frequency point for the beat vibration point, but this method reduces the compressor operating frequency point, making the variable frequency air conditioner close to the fixed frequency air conditioner operation. At the same time, this control makes the temperature control accuracy of the variable frequency air conditioner worse, and the indoor ambient temperature fluctuates greatly, affecting the comfort of the indoor air. Especially with the miniaturization and lightweight of the prototype, the discontinuous buzzing sound generated by the multiple frequencies of the compressor and the multiple frequencies of the fan rotation in the outdoor unit of the air conditioner has greatly increased the possibility of beat vibration. Summary of the invention

[0003] The main purpose of the present application is to provide a method, device, computer program product and air conditioning system for controlling air conditioning noise, so as to at least solve the problem of flapping noise in air conditioning noise in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for controlling air conditioning noise is provided, including: obtaining a compressor noise signal and a fan noise signal of the air conditioner; analyzing the compressor noise signal and the fan noise signal to obtain a compressor operating frequency and a fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of a noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of a noise peak generated by the fan rotation; in the case where there is a difference between a multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold, determining that a beat vibration occurs, wherein the beat vibration difference threshold is a maximum frequency difference between two noises generating a beat vibration; adjusting the compressor operating frequency or the rotation speed of the fan so that there is no difference between a multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

[0005] Optionally, the compressor noise signal and the fan noise signal are analyzed to obtain the compressor operating frequency and the fan rotation fundamental frequency, including: performing Fourier transform on the compressor noise signal and the fan noise signal to obtain a compressor noise spectrum and a fan noise spectrum, respectively; performing harmonic analysis on the compressor noise spectrum and the fan noise spectrum, respectively, to obtain the compressor operating frequency and the fan rotation fundamental frequency.

[0006] Optionally, in a case where the difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to a beat vibration difference threshold, it is determined that a beat vibration occurs, including: in a case where the difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to a beat vibration difference threshold and both the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency are less than a predetermined frequency, it is determined that a beat vibration occurs.

[0007] Optionally, the operating frequency of the compressor or the rotation speed of the fan is adjusted so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold, including: querying the compressor noise spectrum according to the compressor operating frequency to obtain the compressor noise peak, and querying the fan noise spectrum according to the fan rotation fundamental frequency to obtain the fan noise peak; when the compressor noise peak and the fan noise peak are both less than or equal to a first predetermined noise value, it is determined that no beat vibration will occur, and the operating parameters of the air conditioner are controlled to remain unchanged.

[0008] Optionally, adjusting the operating frequency of the compressor or the rotational speed of the fan so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold, including: querying the compressor noise spectrum according to the compressor operating frequency to obtain the compressor noise peak, querying the fan noise spectrum according to the fan rotation fundamental frequency to obtain the fan noise peak; when the compressor noise peak and the fan noise peak are both greater than a first predetermined noise value, determining that beat vibration will occur, reducing the rotational speed of the fan so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

[0009] Optionally, adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold includes: querying the compressor noise spectrum according to the compressor operating frequency to obtain the compressor noise peak, and querying the fan noise spectrum according to the fan rotation fundamental frequency to obtain the fan noise peak; when one of the compressor noise peak and the fan noise peak is greater than a first predetermined noise value, judging whether the difference between the compressor noise peak and the fan noise peak is less than a second predetermined noise value; when the difference between the compressor noise peak and the fan noise peak is greater than or equal to the second predetermined noise value, determining that no beat vibration will occur, and controlling the operating parameters of the air conditioner to remain unchanged; when the difference between the compressor noise peak and the fan noise peak is less than the second predetermined noise value, determining that beat vibration will occur, reducing the rotation speed of the fan so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

[0010] Optionally, obtaining a compressor noise signal and a fan noise signal of the air conditioner includes: obtaining the compressor noise signal collected by a first sound collection device in the cavity of the compressor, and obtaining the fan noise signal collected by a second sound collection device in the cavity of the fan.

[0011] According to another aspect of the present application, a control device for air conditioning noise is provided, including: an acquisition unit, used to acquire a compressor noise signal and a fan noise signal of the air conditioner; an analysis unit, used to analyze the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation base frequency, the compressor operating frequency being the frequency of the noise peak generated by the compressor operation, and the fan rotation base frequency being the frequency of the noise peak generated by the fan rotation; a determination unit, used to determine the occurrence of beat vibration when there is a difference between a multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold, the beat vibration difference threshold being the maximum frequency difference between the two noises generating the beat vibration; an adjustment unit, used to adjust the compressor operating frequency or the fan speed so that there is no difference between a multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

[0012] According to another aspect of the present application, a computer program product is provided, including a computer program, characterized in that when the computer program is executed by a processor, any one of the methods described is implemented.

[0013] According to another aspect of the present application, an air conditioning system is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of the described methods.

[0014] By applying the technical solution of the present application, in the above-mentioned air conditioning noise control method, first, the compressor noise signal and the fan noise signal of the air conditioner are obtained; then, the compressor noise signal and the fan noise signal are analyzed to obtain the compressor operating frequency and the fan rotation base frequency, the compressor operating frequency being the frequency of the noise peak generated by the compressor operation, and the fan rotation base frequency being the frequency of the noise peak generated by the fan rotation; thereafter, in the case where the difference between the multiple frequency of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises that generate beat vibration; finally, the compressor operating frequency or the fan speed is adjusted so that there is no difference between the multiple frequency of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold. The method obtains the compressor operating frequency and the fan rotation base frequency by analyzing the compressor noise signal and the fan noise signal. If the multiple of the fan rotation base frequency is close to the compressor operating frequency, beat vibration is likely to occur, affecting the user experience. Therefore, if the difference between the multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, beat vibration may occur. The compressor operating frequency or the fan speed is adjusted to avoid beat vibration, thereby solving the problem of beat vibration noise in air-conditioning noise in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for controlling air-conditioning noise provided in an embodiment of the present application is shown;

[0016] Figure 2 A schematic flow chart of a method for controlling air conditioning noise according to an embodiment of the present application is shown;

[0017] Figure 3 A frequency spectrum diagram of a compressor operating frequency provided according to an embodiment of the present application is shown;

[0018] Figure 4 A spectrum diagram of a fundamental frequency of rotation of a fan provided in an embodiment of the present application is shown;

[0019] Figure 5 A schematic flow chart of another method for controlling air conditioning noise provided according to an embodiment of the present application is shown;

[0020] Figure 6 A structural block diagram of a device for controlling air conditioning noise provided according to an embodiment of the present application is shown.

[0021] The above drawings include the following reference numerals:

[0022] 102, processor; 104, memory; 106, transmission device; 108, input and output devices. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] As introduced in the background technology, the air conditioning noise in the prior art has a flapping noise. To solve this technical problem, the embodiments of the present application provide a method, device, computer program product and air conditioning system for controlling air conditioning noise.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of a method for controlling air conditioning noise according to an embodiment of the present invention. Figure 1As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0029] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the display method of device information in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0030] In this embodiment, a method for controlling air conditioning noise running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0031] Figure 2 FIG. 1 is a flow chart of a method for controlling air conditioning noise according to an embodiment of the present application. Figure 2As shown, the method comprises the following steps:

[0032] Step S201, obtaining a compressor noise signal and a fan noise signal of an air conditioner;

[0033] Step S202, analyzing the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation;

[0034] Step S203, when there is a difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises generating beat vibration;

[0035] Step S204, adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the operating frequency of the compressor that is less than or equal to the beat difference threshold.

[0036] In the above-mentioned air conditioning noise control method, first, the compressor noise signal and the fan noise signal of the air conditioner are obtained; then, the compressor noise signal and the fan noise signal are analyzed to obtain the compressor operating frequency and the fan rotation base frequency, the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation base frequency is the frequency of the noise peak generated by the fan rotation; then, in the case that the difference between the multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises that generate beat vibration; finally, the compressor operating frequency or the fan speed is adjusted so that there is no difference between the multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold. The method obtains the compressor operating frequency and the fan rotation base frequency by analyzing the compressor noise signal and the fan noise signal. If the multiple of the fan rotation base frequency is close to the compressor operating frequency, beat vibration is likely to occur, affecting the user experience. Therefore, if the difference between the multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, beat vibration may occur. The compressor operating frequency or the fan speed is adjusted to avoid beat vibration, thereby solving the problem of beat vibration noise in air-conditioning noise in the prior art.

[0037] In order to analyze the noise frequency, in an optional implementation, the above step S202 includes:

[0038] Step S2021, performing Fourier transform on the compressor noise signal and the fan noise signal to obtain a compressor noise spectrum and a fan noise spectrum respectively;

[0039] Step S2022: perform harmonic analysis on the compressor noise spectrum and the fan noise spectrum to obtain the compressor operating frequency and the fan rotation fundamental frequency.

[0040] In the above implementation, the noise analysis module can be used to perform data analysis on the current noise signal, including using Fourier transform to perform noise spectrum analysis, and obtain the noise peak frequency associated with the compressor and the noise peak frequency associated with the fan in the current noise spectrum, such as Figure 3 and Figure 4 As shown, when the air conditioner outdoor unit is operating normally, the noise analysis module performs a test analysis on the current outdoor unit noise. The current operating frequency f of the compressor can be obtained by performing a harmonic analysis on the frequency spectrum. 运行 and the current fan rotation fundamental frequency f 风机0 , where the fan rotation fundamental frequency f 风机0 =R / 60*Z, where R is the rotation speed of the air conditioner outdoor unit and Z is the number of blades of the fan.

[0041] In order to avoid the occurrence of beat vibration, in an optional implementation manner, the above step S203 includes:

[0042] Step S2031, when the difference between the frequency multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold and when the frequency multiple of the fan rotation base frequency and the compressor operating frequency are both less than a predetermined frequency, it is determined that beat vibration occurs.

[0043] In the above implementation, after obtaining the operating frequency of the compressor and the fundamental frequency of the fan rotation, it can be further determined whether the compressor operating frequency multiple and the fan rotation frequency multiple are in the beat vibration region: |mf 运行 -nf 风机0 |≤4Hz, where m=1,2,3,4..., n=1,2,3,..., the current operating conditions meet the above formula and mf 运行 <300Hz、nf 风机0 When the frequency is less than 300 Hz, it is determined that the current operating state is in a state where there may be a beat vibration.

[0044] In order to further determine whether there is beat vibration, in an optional implementation, the above step S204 includes:

[0045] Step S2041, querying the noise spectrum of the compressor according to the operating frequency of the compressor to obtain the noise peak of the compressor, and querying the noise spectrum of the fan according to the rotation fundamental frequency of the fan to obtain the noise peak of the fan;

[0046] Step S2042: When the compressor noise peak value and the fan noise peak value are both less than or equal to the first predetermined noise value, it is determined that no beat vibration will occur, and the operating parameters of the air conditioner are controlled to remain unchanged.

[0047] In the above implementation, further obtaining mf at this time 运行 and nf 风机0 The corresponding noise peak value P 运行 and P 风机 , when the noise peak value P 运行 and P 风机 When both are less than P0, there will be no vibration under the current operating conditions, and the operating parameters of the above air conditioner can be controlled unchanged.

[0048] In order to avoid the occurrence of beat vibration, in an optional implementation manner, the above step S204 includes:

[0049] Step S2043, querying the noise spectrum of the compressor according to the operating frequency of the compressor to obtain the noise peak of the compressor, and querying the noise spectrum of the fan according to the rotation fundamental frequency of the fan to obtain the noise peak of the fan;

[0050] Step S2044, when the compressor noise peak value and the fan noise peak value are both greater than the first predetermined noise value, it is determined that beat vibration will occur, and the rotation speed of the fan is reduced so that there is no difference between the double frequency of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

[0051] In the above implementation, further obtaining mf at this time 运行 and nf 风机0 The corresponding noise peak value P 运行 and P 风机 , when the noise peak value P 运行 and P 风机 When both are greater than P0, it means that beat vibration will occur at this time, and the system will adjust the fan speed to reduce the fan speed so that the current operating conditions meet |mf 运行 -nf 风机0 |>4Hz, at this time, the vibration can be effectively avoided by reducing the fan speed, and the noise value will not increase due to excessive speed.

[0052] In order to avoid the occurrence of beat vibration, in an optional implementation manner, the above step S204 includes:

[0053] Step S2045, querying the noise spectrum of the compressor according to the operating frequency of the compressor to obtain the noise peak of the compressor, and querying the noise spectrum of the fan according to the rotation fundamental frequency of the fan to obtain the noise peak of the fan;

[0054] Step S2046, when one of the compressor noise peak value and the fan noise peak value is greater than the first predetermined noise value, determining whether the difference between the compressor noise peak value and the fan noise peak value is less than a second predetermined noise value;

[0055] Step S2047, when the difference between the compressor noise peak value and the fan noise peak value is greater than or equal to the second predetermined noise value, it is determined that no beat vibration occurs, and the operating parameters of the air conditioner are controlled to remain unchanged;

[0056] Step S2048, when the difference between the compressor noise peak and the fan noise peak is less than the second predetermined noise value, it is determined that beat vibration will occur, and the rotation speed of the fan is reduced so that there is no difference between the double frequency of the fan rotation base frequency and the compressor operating frequency which is less than or equal to the beat vibration difference threshold.

[0057] In the above embodiment, when the noise peak value P 运行 and P 风机 When only one of the items is greater than P0, then determine whether |P 运行 -P 风机 |<P, if not satisfied, then no vibration will occur at this time, if satisfied, it means that vibration will occur at this time, the system will adjust the fan speed, reduce the fan speed to make the current operating conditions meet |mf 运行 -nf 风机0 |>4Hz. The noise control method in this solution can be used for outdoor units with different compressors and different speeds, avoiding vibration caused by working conditions or air conditioning consistency, while minimizing the impact on system performance and comfort.

[0058] In order to further determine whether there is beat vibration, in an optional implementation, the above step S201 includes:

[0059] Step S2011, acquiring the compressor noise signal collected by the first sound collecting device in the cavity of the compressor, and acquiring the fan noise signal collected by the second sound collecting device in the cavity of the fan.

[0060] In the above embodiment, the air conditioner is provided with a noise test and analysis module, which can be arranged in the middle part of the compressor cavity and the fan cavity. The module includes a microphone and a noise analysis module, wherein the microphone can be used to obtain the noise signal of the current air conditioner outdoor unit, that is, the compressor noise signal and the fan noise signal can be obtained.

[0061] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the air conditioning noise control method of the present application will be described in detail below in combination with specific embodiments.

[0062] This embodiment relates to a specific method for controlling air conditioning noise. Figure 5 As shown, the following steps are included:

[0063] The air conditioner is provided with a noise test and analysis module, which can be arranged in the middle of the compressor cavity and the fan cavity. The module includes a microphone and a noise analysis module, wherein the microphone can be used to obtain the noise signal of the current air conditioner outdoor unit, and the noise analysis module can be used to perform data analysis on the current noise signal, including using Fourier transform to perform noise spectrum analysis, and can obtain the noise peak frequency related to the compressor and the noise peak frequency related to the fan in the current noise spectrum, such as Figure 3 and Figure 4 shown.

[0064] When the air conditioner outdoor unit is operating normally, the noise analysis module performs a test analysis on the current outdoor unit noise. The current operating frequency f of the compressor can be obtained by performing a harmonic analysis on the spectrum. 运行 and the current fan rotation fundamental frequency f 风机0 , where the fan rotation fundamental frequency f 风机0 =R / 60*Z, where R is the speed of the air conditioner outdoor unit and Z is the number of blades of the fan. After obtaining the operating frequency of the compressor and the base frequency of the fan rotation, it can be further determined whether the compressor operating frequency multiplication and the fan rotation frequency multiplication are in the beat vibration area:

[0065] |mf 运行 - nR / 60*Z|≤4Hz, where m=1,2,3,4…, n=1,2,3,…;

[0066] The current operating conditions satisfy the above formula and mf 运行 <300Hz、nf 风机0 When the frequency is less than 300Hz, it is determined that the current operating state is in a state of possible vibration and needs further judgment. 运行 and nf 风机0 The corresponding noise peak value P 运行 and P 风机 , when the noise peak value P 运行 and P 风机 When both are less than P0, there will be no vibration under the current operating conditions; when the noise peak value P 运行 and P 风机 When both are greater than P0, it means that beat vibration will occur at this time, and the system will adjust the fan speed to reduce the fan speed so that the current operating conditions meet |mf 运行 -nf 风机0 |>4Hz, at this time, the fan speed can be reduced to effectively avoid vibration, and the noise value will not increase due to excessive speed. 运行 and P风机 When only one of the items is greater than P0, then determine whether |P 运行 -P 风机 |<P, if not satisfied, then no vibration will occur at this time, if satisfied, it means that vibration will occur at this time, the system will adjust the fan speed, reduce the fan speed to make the current operating conditions meet |mf 运行 -nf 风机0 |>4Hz. The noise control method in this solution can be used for outdoor units with different compressors and different speeds, avoiding vibration caused by working conditions or air conditioning consistency, while minimizing the impact on system performance and comfort.

[0067] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0068] The embodiment of the present application also provides a control device for air conditioning noise. It should be noted that the control device for air conditioning noise in the embodiment of the present application can be used to execute the control method for air conditioning noise provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceived.

[0069] The following is an introduction to the air conditioning noise control device provided in the embodiment of the present application.

[0070] Figure 6 is a structural block diagram of an air conditioning noise control device according to an embodiment of the present application. Figure 6 As shown, the device comprises:

[0071] An acquisition unit 10 is used to acquire a compressor noise signal and a fan noise signal of the air conditioner;

[0072] The analysis unit 20 is used to analyze the compressor noise signal and the fan noise signal to obtain the compressor operation frequency and the fan rotation fundamental frequency, wherein the compressor operation frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation;

[0073] A determination unit 30, configured to determine the occurrence of a beat vibration when the difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to a beat vibration difference threshold, wherein the beat vibration difference threshold is a maximum frequency difference between two noises generating a beat vibration;

[0074] The regulating unit 40 is used to regulate the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fundamental frequency of the fan rotation and the operating frequency of the compressor that is less than or equal to the beat difference threshold.

[0075] In the above-mentioned air conditioning noise control device, an acquisition unit acquires the compressor noise signal and the fan noise signal of the air conditioner; an analysis unit analyzes the above-mentioned compressor noise signal and the above-mentioned fan noise signal to obtain the compressor operating frequency and the fan rotation base frequency, the above-mentioned compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the above-mentioned fan rotation base frequency is the frequency of the noise peak generated by the fan rotation; the determination unit determines the occurrence of beat vibration when there is a difference between the multiple of the above-mentioned fan rotation base frequency and the above-mentioned compressor operating frequency is less than or equal to the beat vibration difference threshold, and the above-mentioned beat vibration difference threshold is the maximum frequency difference between the two noises that generate beat vibration; the adjustment unit adjusts the above-mentioned compressor operating frequency or the above-mentioned fan speed so that there is no difference between the multiple of the above-mentioned fan rotation base frequency and the above-mentioned compressor operating frequency is less than or equal to the beat vibration difference threshold. The device obtains the compressor operating frequency and the fan rotation base frequency by analyzing the compressor noise signal and the fan noise signal. If the multiple of the fan rotation base frequency is close to the compressor operating frequency, beat vibration is likely to occur, affecting the user experience. Therefore, if the difference between the multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, beat vibration may occur, and the compressor operating frequency or the fan speed is adjusted to avoid beat vibration, thereby solving the problem of beat vibration noise in air-conditioning noise in the prior art.

[0076] In order to analyze the noise frequency, in an optional implementation manner, the analysis unit includes:

[0077] A first analysis module, used for performing Fourier transform on the compressor noise signal and the fan noise signal to obtain a compressor noise spectrum and a fan noise spectrum respectively;

[0078] The second analysis module is used to perform harmonic analysis according to the compressor noise spectrum and the fan noise spectrum respectively to obtain the compressor operating frequency and the fan rotation fundamental frequency.

[0079] In the above implementation, the noise analysis module can be used to perform data analysis on the current noise signal, including using Fourier transform to perform noise spectrum analysis, and obtain the noise peak frequency associated with the compressor and the noise peak frequency associated with the fan in the current noise spectrum, such as Figure 3 and Figure 4 As shown, when the air conditioner outdoor unit is operating normally, the noise analysis module performs a test analysis on the current outdoor unit noise. The current operating frequency f of the compressor can be obtained by performing a harmonic analysis on the frequency spectrum. 运行 and the current fan rotation fundamental frequency f 风机0 , where the fan rotation fundamental frequency f 风机0 =R / 60*Z, where R is the rotation speed of the air conditioner outdoor unit and Z is the number of blades of the fan.

[0080] In order to avoid the occurrence of beat vibration, in an optional implementation manner, the determination unit includes:

[0081] The first determination module is used to determine the presence of beat vibration when the difference between the frequency multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold and when the frequency multiple of the fan rotation base frequency and the compressor operating frequency are both less than a predetermined frequency.

[0082] In the above implementation, after obtaining the operating frequency of the compressor and the fundamental frequency of the fan rotation, it can be further determined whether the compressor operating frequency multiple and the fan rotation frequency multiple are in the beat vibration region: |mf 运行 -nf 风机0 |≤4Hz, where m=1,2,3,4..., n=1,2,3,..., the current operating conditions meet the above formula and mf 运行 <300Hz、nf 风机0 When the frequency is less than 300 Hz, it is determined that the current operating state is in a state where there may be a beat vibration.

[0083] In order to further determine whether there is beat vibration, in an optional implementation, the adjustment unit includes:

[0084] A query module, used to query the noise spectrum of the compressor according to the operating frequency of the compressor to obtain the noise peak of the compressor, and query the noise spectrum of the fan according to the rotation fundamental frequency of the fan to obtain the noise peak of the fan;

[0085] The second determination module is used to determine that no beat vibration will occur and control the operating parameters of the air conditioner to remain unchanged when the peak value of the compressor noise and the peak value of the fan noise are both less than or equal to the first predetermined noise value.

[0086] In the above implementation, further obtaining mf at this time 运行 and nf 风机0 The corresponding noise peak value P 运行 and P 风机 , when the noise peak value P 运行 and P 风机 When both are less than P0, there will be no vibration under the current operating conditions, and the operating parameters of the above air conditioner can be controlled unchanged.

[0087] In order to avoid the occurrence of beat vibration, in an optional implementation, the adjustment unit includes:

[0088] A query module, used to query the noise spectrum of the compressor according to the operating frequency of the compressor to obtain the noise peak of the compressor, and query the noise spectrum of the fan according to the rotation fundamental frequency of the fan to obtain the noise peak of the fan;

[0089] The third determination module is used to determine that beat vibration will occur when the compressor noise peak value and the fan noise peak value are both greater than the first predetermined noise value, and reduce the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

[0090] In the above implementation, further obtaining mf at this time 运行 and nf 风机0 The corresponding noise peak value P 运行 and P 风机 , when the noise peak value P 运行 and P 风机 When both are greater than P0, it means that beat vibration will occur at this time, and the system will adjust the fan speed to reduce the fan speed so that the current operating conditions meet |mf 运行 -nf 风机0 |>4Hz, at this time, the vibration can be effectively avoided by reducing the fan speed, and the noise value will not increase due to excessive speed.

[0091] In order to avoid the occurrence of beat vibration, in an optional implementation, the adjustment unit includes:

[0092] A query module, used to query the noise spectrum of the compressor according to the operating frequency of the compressor to obtain the noise peak of the compressor, and query the noise spectrum of the fan according to the rotation fundamental frequency of the fan to obtain the noise peak of the fan;

[0093] A judgment module, configured to judge whether a difference between the peak value of the compressor noise and the peak value of the fan noise is less than a second predetermined noise value when one of the peak value of the compressor noise and the peak value of the fan noise is greater than a first predetermined noise value;

[0094] a fourth determination module, configured to determine that no beat vibration occurs and control the operating parameters of the air conditioner to remain unchanged when the difference between the compressor noise peak value and the fan noise peak value is greater than or equal to the second predetermined noise value;

[0095] The fifth determination module is used to determine that beat vibration will occur when the difference between the above-mentioned compressor noise peak value and the above-mentioned fan noise peak value is less than the above-mentioned second predetermined noise value, and reduce the rotation speed of the above-mentioned fan so that there is no difference between the multiple of the above-mentioned fan rotation base frequency and the above-mentioned compressor operating frequency which is less than or equal to the beat vibration difference threshold.

[0096] In the above embodiment, when the noise peak value P 运行 and P 风机 When only one of the items is greater than P0, then determine whether |P 运行 -P 风机 |<P, if not satisfied, then no vibration will occur at this time, if satisfied, it means that vibration will occur at this time, the system will adjust the fan speed, reduce the fan speed to make the current operating conditions meet |mf 运行 -nf 风机0 |>4Hz. The noise control method in this solution can be used for outdoor units with different compressors and different speeds, avoiding vibration caused by working conditions or air conditioning consistency, while minimizing the impact on system performance and comfort.

[0097] In order to further determine whether there is beat vibration, in an optional implementation manner, the acquisition unit includes:

[0098] The acquisition module is used to acquire the compressor noise signal collected by the first sound collection device of the cavity of the compressor, and acquire the fan noise signal collected by the second sound collection device of the cavity of the fan.

[0099] In the above embodiment, the air conditioner is provided with a noise test and analysis module, which can be arranged in the middle part of the compressor cavity and the fan cavity. The module includes a microphone and a noise analysis module, wherein the microphone can be used to obtain the noise signal of the current air conditioner outdoor unit, that is, the compressor noise signal and the fan noise signal can be obtained.

[0100] The air conditioning noise control device includes a processor and a memory. The acquisition unit, analysis unit, determination unit, and adjustment unit are all stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions. The modules are all located in the same processor; or, the modules are located in different processors in any combination.

[0101] The processor includes a kernel, and the kernel calls the corresponding program unit from the memory. One or more kernels can be set, and the problem of the air conditioner noise appearing in the prior art can be solved by adjusting the kernel parameters.

[0102] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0103] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the air conditioning noise control method.

[0104] Specifically, the air conditioning noise control method includes:

[0105] Step S201, obtaining a compressor noise signal and a fan noise signal of an air conditioner;

[0106] Step S202, analyzing the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation;

[0107] Step S203, when there is a difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises generating beat vibration;

[0108] Step S204, adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the operating frequency of the compressor that is less than or equal to the beat difference threshold.

[0109] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the air conditioning noise control method is executed when the program is run.

[0110] Specifically, the air conditioning noise control method includes:

[0111] Step S201, obtaining a compressor noise signal and a fan noise signal of an air conditioner;

[0112] Step S202, analyzing the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation;

[0113] Step S203, when there is a difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises generating beat vibration;

[0114] Step S204, adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the operating frequency of the compressor that is less than or equal to the beat difference threshold.

[0115] An embodiment of the present invention provides an air conditioning system, the air conditioning system comprising a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0116] Step S201, obtaining a compressor noise signal and a fan noise signal of an air conditioner;

[0117] Step S202, analyzing the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation;

[0118] Step S203, when there is a difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises generating beat vibration;

[0119] Step S204, adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the operating frequency of the compressor that is less than or equal to the beat difference threshold.

[0120] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0121] Step S201, obtaining a compressor noise signal and a fan noise signal of an air conditioner;

[0122] Step S202, analyzing the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation;

[0123] Step S203, when there is a difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises generating beat vibration;

[0124] Step S204, adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the operating frequency of the compressor that is less than or equal to the beat difference threshold.

[0125] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0126] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0127] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0128] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0129] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0130] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0131] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0132] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0133] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0134] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0135] 1) In the air conditioning noise control method of the present application, first, the compressor noise signal and the fan noise signal of the air conditioner are obtained; then, the compressor noise signal and the fan noise signal are analyzed to obtain the compressor operating frequency and the fan rotation base frequency, the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation base frequency is the frequency of the noise peak generated by the fan rotation; then, in the case that the difference between the multiple frequency of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between the two noises that generate beat vibration; finally, the compressor operating frequency or the fan speed is adjusted so that there is no difference between the multiple frequency of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold. The method obtains the compressor operating frequency and the fan rotation base frequency by analyzing the compressor noise signal and the fan noise signal. If the multiple of the fan rotation base frequency is close to the compressor operating frequency, beat vibration is likely to occur, affecting the user experience. Therefore, if the difference between the multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, beat vibration may occur. The compressor operating frequency or the fan speed is adjusted to avoid beat vibration, thereby solving the problem of beat vibration noise in air-conditioning noise in the prior art.

[0136] 2) In the air conditioning noise control device of the present application, an acquisition unit acquires a compressor noise signal and a fan noise signal of the air conditioner; an analysis unit analyzes the compressor noise signal and the fan noise signal to obtain a compressor operating frequency and a fan rotation base frequency, wherein the compressor operating frequency is the frequency of a noise peak generated by the compressor operation, and the fan rotation base frequency is the frequency of a noise peak generated by the fan rotation; a determination unit determines the occurrence of a beat vibration when there is a difference between a multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to a beat vibration difference threshold, and the beat vibration difference threshold is the maximum frequency difference between the two noises that generate the beat vibration; an adjustment unit adjusts the compressor operating frequency or the rotation speed of the fan so that there is no difference between a multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold. The device obtains the compressor operating frequency and the fan rotation base frequency by analyzing the compressor noise signal and the fan noise signal. If the multiple of the fan rotation base frequency is close to the compressor operating frequency, beat vibration is likely to occur, affecting the user experience. Therefore, if the difference between the multiple of the fan rotation base frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, beat vibration may occur, and the compressor operating frequency or the fan speed is adjusted to avoid beat vibration, thereby solving the problem of beat vibration noise in air-conditioning noise in the prior art.

[0137] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling air conditioning noise, characterized in that: include: Obtain the compressor noise signal and fan noise signal of the air conditioner; Analyze the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of the noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of the noise peak generated by the fan rotation; In the case where the difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, it is determined that beat vibration occurs, and the beat vibration difference threshold is the maximum frequency difference between two noises generating beat vibration; Adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fundamental frequency of the fan rotation and the operating frequency of the compressor that is less than or equal to the beat difference threshold; Analyzing the compressor noise signal and the fan noise signal to obtain the compressor operating frequency and the fan rotation fundamental frequency, including: performing Fourier transform on the compressor noise signal and the fan noise signal to obtain the compressor noise spectrum and the fan noise spectrum; performing harmonic analysis on the compressor noise spectrum and the fan noise spectrum to obtain the compressor operating frequency and the fan rotation fundamental frequency; adjusting the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple frequency of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold, querying the compressor noise spectrum according to the compressor operating frequency to obtain the compressor noise peak, querying the fan noise spectrum according to the fan rotation base frequency to obtain the fan noise peak, including: when the compressor noise peak and the fan noise peak are both less than or equal to a first predetermined noise value, determining that beat vibration will not occur, and controlling the operating parameters of the air conditioner to remain unchanged, and In the case where both the compressor noise peak value and the fan noise peak value are greater than a first predetermined noise value, it is determined that beat vibration will occur, and the rotation speed of the fan is reduced so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold value, further comprising: When one of the compressor noise peak and the fan noise peak is greater than a first predetermined noise value, determine whether the difference between the compressor noise peak and the fan noise peak is less than a second predetermined noise value; when the difference between the compressor noise peak and the fan noise peak is greater than or equal to the second predetermined noise value, determine that beat vibration will not occur, and control the operating parameters of the air conditioner to remain unchanged; and when the difference between the compressor noise peak and the fan noise peak is less than the second predetermined noise value, determine that beat vibration will occur, reduce the rotation speed of the fan, so that there is no difference between the multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

2. The method according to claim 1, characterized in that In the case where the difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold, determining that beat vibration occurs includes: When the difference between the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to the beat vibration difference threshold and both the frequency multiple of the fan rotation fundamental frequency and the compressor operating frequency are less than a predetermined frequency, it is determined that beat vibration occurs.

3. The method according to claim 1, characterized in that Obtain the compressor noise signal and fan noise signal of the air conditioner, including: The compressor noise signal collected by the first sound collecting device in the cavity of the compressor is obtained, and the fan noise signal collected by the second sound collecting device in the cavity of the fan is obtained.

4. A device for controlling air conditioning noise, characterized in that: include: An acquisition unit, used to acquire a compressor noise signal and a fan noise signal of the air conditioner; an analysis unit, configured to analyze the compressor noise signal and the fan noise signal to obtain a compressor operating frequency and a fan rotation fundamental frequency, wherein the compressor operating frequency is the frequency of a noise peak generated by the compressor operation, and the fan rotation fundamental frequency is the frequency of a noise peak generated by the fan rotation; A determination unit, configured to determine the occurrence of a beat vibration when a difference between a multiple of the fan rotation fundamental frequency and the compressor operating frequency is less than or equal to a beat vibration difference threshold, wherein the beat vibration difference threshold is a maximum frequency difference between two noises generating a beat vibration; an adjusting unit, configured to adjust the operating frequency of the compressor or the rotation speed of the fan so that there is no difference between the multiple of the fundamental frequency of rotation of the fan and the operating frequency of the compressor which is less than or equal to a beat difference threshold; The analysis unit includes: a first analysis module, used to perform Fourier transform on the compressor noise signal and the fan noise signal to obtain a compressor noise spectrum and a fan noise spectrum; a second analysis module, used to perform harmonic analysis on the compressor noise spectrum and the fan noise spectrum to obtain the compressor operating frequency and the fan rotation fundamental frequency; The regulating unit includes: a query module, which is used to query the compressor noise spectrum according to the compressor operating frequency to obtain the compressor noise peak, and query the fan noise spectrum according to the fan rotation fundamental frequency to obtain the fan noise peak; a second determination module, which is used to determine that no beat vibration occurs when the compressor noise peak and the fan noise peak are both less than or equal to a first predetermined noise value, and control the operating parameters of the air conditioner to remain unchanged; A third determination module is used to determine that beat vibration will occur when the compressor noise peak value and the fan noise peak value are both greater than a first predetermined noise value, and reduce the rotation speed of the fan so that there is no difference between the multiple of the fan rotation fundamental frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold; A judgment module, used to judge whether the difference between the compressor noise peak value and the fan noise peak value is less than a second predetermined noise value when one of the compressor noise peak value and the fan noise peak value is greater than a first predetermined noise value; a fourth determination module, used to determine that beat vibration will not occur and control the operating parameters of the air conditioner to remain unchanged when the difference between the compressor noise peak value and the fan noise peak value is greater than or equal to the second predetermined noise value; a fifth determination module, used to determine that beat vibration will occur when the difference between the compressor noise peak value and the fan noise peak value is less than the second predetermined noise value, and reduce the rotation speed of the fan so that there is no difference between the multiple of the fan rotation base frequency and the compressor operating frequency that is less than or equal to the beat vibration difference threshold.

5. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 3 is implemented.

6. An air conditioning system, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of claims 1 to 3.

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