Air conditioner control method and air conditioner

Abstract

The invention provides an air conditioner control method and an air conditioner, and belongs to the technical field of air conditioners. The control method comprises the steps that in the operation process of the air conditioner, whether an instruction for shielding the current frequency is received or not is judged; the instruction for shielding the current frequency comprises an air conditioner internal generation instruction and an external sending instruction; if yes, whether the air conditioner is in a preset operation constraint condition or not is judged; if yes, the instruction of shielding the current frequency is not executed; and if not, executing an instruction for shielding the current frequency, and storing the shielded frequency. According to the control method, the frequency needing to be shielded operation can be added in the mode that the instruction is sent outside or the air conditioner automatically generates the instruction, flexibility and convenience are achieved, resonance of the air conditioner can be effectively reduced, the service life of the air conditioner is prolonged, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning control method and an air conditioner. Background Art

[0002] In the current air-conditioning market, variable frequency air-conditioning occupies a dominant position. The electronic control system of this type of air-conditioning can dynamically adjust the compressor operating frequency using a series of algorithms based on the ambient temperature and the user's preset temperature to achieve precise control of the indoor temperature and energy saving. When the existing variable frequency air-conditioning is in operation, when the compressor operating frequency reaches the resonant frequency point associated with the pipeline system or the whole machine, the pipeline system and even the whole machine will vibrate violently, producing unbearable resonant noise. This noise not only seriously affects the user experience, but also may cause cracks or even breaks in the pipeline if it is operated in a resonant state for a long time, greatly shortening the service life of the air conditioner and increasing the after-sales maintenance cost. In order to deal with the resonance problem, the resonant frequency points are usually identified in advance during the development stage of the air conditioner, and these frequency points are set to be shielded in the program. In this way, the unit will automatically skip these shielded frequency points during the actual operation process, thereby avoiding the resonance of the whole machine.

[0003] However, the piping and welding of the air conditioning piping system adopts a flexible operation mode, which makes it inevitable that manufacturing errors will occur in the manual pipe adjustment process. These errors may cause the natural frequency of the piping system to change, thereby generating new resonant frequency points. Once the unit is running at these new frequency points, the problem of resonance and abnormal noise will occur, and the pre-shielded frequency points cannot cover these newly generated abnormal frequencies. In addition, the installation environment of air conditioners varies greatly, and factors such as installation methods and materials used will affect the operation of air conditioners. Different installation conditions may cause the air conditioner to resonate with the external unit bracket, wall, ground, etc. at a certain operating frequency point. This will cause users to still encounter resonance noise troubles during the use of air conditioners, seriously affecting the user experience.

[0004] Therefore, it is necessary to improve the existing air conditioner to overcome the defects of the prior art. Summary of the invention

[0005] In order to overcome the problems existing in the related art, one of the objects of the present invention is to provide an air-conditioning control method, which can add the frequency to be shielded by sending instructions from the outside or automatically generating instructions by the air-conditioning. It is flexible and convenient, and can effectively reduce the resonance of the air-conditioning, thereby extending the service life of the air-conditioning and improving the user experience.

[0006] An air conditioning control method, comprising: During the operation of the air conditioner, it is determined whether an instruction to shield the current frequency is received; the instruction to shield the current frequency includes an instruction generated internally by the air conditioner and an instruction sent externally; If so, determine whether the air conditioner is within the preset operating constraints; If so, the instruction to shield the current frequency is not executed; if not, the instruction to shield the current frequency is executed and the shielded frequency is stored.

[0007] This method can achieve the purpose of timely shielding the frequency that causes resonance by sending instructions to the air conditioner. It can effectively reduce the damage to the air conditioner components caused by resonance, thereby extending the overall service life of the air conditioner. It avoids long-term operation at the resonant frequency, reduces the risk of copper pipe breakage, and reduces the frequency of replacement due to component damage, thereby extending the service life of the air conditioner.

[0008] This control method allows users to send shielding instructions through external devices (such as remote controls, APPs). When users notice that the air conditioner generates resonance noise, they can promptly operate to shield abnormal frequencies. At the same time, the air conditioner can also automatically generate instructions to shield abnormal frequencies without manual intervention by the user. This flexible and convenient method can quickly eliminate resonance noise.

[0009] In a preferred technical solution of the present invention, the preset operating constraints include: The air conditioner is currently executing a frequency increase / decrease procedure, and the current frequency interval has at least one operable frequency point that is different from the current frequency.

[0010] In this embodiment, the preset operating constraints are specifically defined. When the compressor is frequency-up / frequency-down, the whole machine vibrates greatly and the sound changes significantly. This is a normal phenomenon, not a real resonance abnormality. Moreover, the frequency changes quickly in this process, making it difficult to accurately operate the shielding, and the frequency points in these changing processes are not stable operating frequencies. The unit will not operate at this frequency after it is stable, so it is reasonable not to execute the shielding instruction at this time, which can avoid mistakenly shielding the normal operating frequency. In this embodiment, after determining whether the air conditioner is currently in the process of executing the frequency-up / frequency-down program, it enters the rhythm of judging whether the "current frequency interval has at least one operable frequency point different from the current frequency". This condition is to ensure that the air-conditioning system can operate normally while maintaining the comfort control advantage of the variable frequency system. If the shielding is performed when there are no other operable frequency points in the current frequency interval, the air conditioner may not be able to operate normally in this interval, affecting the cooling or heating effect, and retaining the operable frequency can avoid this situation.

[0011] In a preferred technical solution of the present invention, the preset operating constraints include: The air conditioner is currently in the process of performing a frequency increase / decrease procedure; or, The current frequency interval has at least one operable frequency point that is different from the current frequency.

[0012] Another implementation method of presetting the operating constraint condition is provided. In this embodiment, the two conditional expressions exist at the same time. By setting the two presetting conditions, the judgment range of the air conditioner can be increased, so that the air conditioner can better shield a specific frequency.

[0013] In a preferred technical solution of the present invention, the current frequency zone is a preset operating frequency range of the compressor, wherein the preset operating frequency range includes 0-20Hz, 20-40Hz, 40-60Hz, 60-80Hz, 80-100Hz, and 100-120Hz.

[0014] In a preferred technical solution of the present invention, during the operation of the air conditioner, the following steps are also included: Get the preset frequency shielding point; Control the compressor to operate outside the preset frequency cutoff point.

[0015] When the air conditioner is running and the compressor starts running, the control system will automatically control the compressor to exclude these frequency points based on the preset frequency shielding point information obtained. When selecting the operating frequency, if the currently calculated suitable operating frequency happens to be the preset shielding point, the system will adjust the frequency and select other suitable operating frequencies within the frequency range.

[0016] By obtaining the preset frequency shielding points and controlling the compressor to avoid these points, the chance of the compressor running at the frequency points that may cause resonance is reduced from the source. Because resonance will cause additional stress and wear on the air conditioner's piping system, compressor and other components, long-term resonance state is likely to cause component damage, such as copper pipe breakage, compressor failure, etc. Avoiding these frequency points can effectively reduce the damage of resonance to the equipment, extend the service life of the air conditioner, and reduce maintenance costs.

[0017] In a preferred technical solution of the present invention, during the operation of the air conditioner, the following steps are also included: Get the real-time noise value of the space where the air conditioner is located; Determine whether the real-time noise value exceeds a preset noise threshold; If so, determine whether the air conditioner is within the preset operating constraints; If so, the instruction to shield the current frequency is not executed; if not, the instruction to shield the current frequency is executed and the shielded frequency is stored.

[0018] In a preferred technical solution of the present invention, after determining that the real-time noise value exceeds the preset noise threshold, the method further includes: Analyze the frequency spectrum of the noise and determine the main frequency components of the current noise; According to the main frequency components of the noise, determine whether the current compressor operating frequency matches the noise frequency; If so, the process proceeds to the step of determining whether the air conditioner is within the preset operating constraints.

[0019] In this embodiment, a method for automatically shielding the compressor operating frequency is provided. By obtaining the real-time noise value and performing spectrum analysis, the frequency component causing the noise can be accurately determined and matched with the compressor operating frequency. Shielding is performed only when the compressor operating frequency matches the noise frequency and other conditions are met, avoiding unnecessary frequency shielding operations and ensuring that only the noise that is truly caused by the resonance of the compressor is processed, thereby more effectively reducing the resonance noise generated when the air conditioner is running, and providing users with a quiet use environment. Timely shielding of the noise generated by the resonance frequency greatly improves the user's comfort during the use of the air conditioner. Whether resting, studying or working, the user will not be disturbed by the resonance noise of the air conditioner, thereby improving the user's satisfaction with the air-conditioning product.

[0020] A second object of the present invention is to provide an air conditioner for implementing the air conditioning control method as described above.

[0021] In a preferred technical solution of the present invention, the air conditioner comprises: A controller, the controller being used to control the operation of the air conditioner; A compressor, configured to adjust an operating frequency according to a control signal from the controller; The memory is electrically connected to the controller and is used to store preset operating constraint conditions and shielding frequency point information.

[0022] In a preferred technical solution of the present invention, a wireless communication module and a noise detection module are provided on the controller, and both the wireless communication module and the noise detection module are electrically connected to the controller.

[0023] The beneficial effects of the present invention are: The present invention provides an air conditioning control method, the present invention provides an air conditioning control method and an air conditioner, the control method comprising: during the operation of the air conditioner, judging whether an instruction to shield the current frequency is received; the instruction to shield the current frequency includes an instruction generated inside the air conditioner and an instruction sent from the outside; if so, judging whether the air conditioner is in a preset operation constraint condition; if so, not executing the instruction to shield the current frequency; if not, executing the instruction to shield the current frequency and storing the shielded frequency. The control method is executed in the controller of the air conditioner, and when the air conditioner is running, the control system of the air conditioner will monitor in real time whether an instruction to shield the current frequency is received. There are two sources of the instruction, one is an instruction sent by the user through an external device such as a remote control or an APP, and the other is an instruction generated inside the air conditioner based on its own operation status. After receiving the instruction to shield the current frequency, the air conditioner will further judge whether it is in a preset operation constraint condition. If the air conditioner is not in the preset operation constraint condition, the system will execute the instruction to shield the current frequency. In actual use, the user can manually shield the frequency point that causes abnormal noise according to his own feelings and needs, so as to obtain a more comfortable use experience. Alternatively, the automatic monitoring function of the air conditioner can automatically identify and shield abnormal frequency points without user intervention, further improving the convenience of use. By shielding the frequency points that cause resonance, problems such as pipe breakage caused by resonance can be effectively reduced, the risk and cost of after-sales maintenance can be reduced, and the air conditioner can be prevented from running for a long time at the resonant frequency, which helps to extend the service life of the air conditioner.

[0024] The present application also provides an air conditioner that implements the above-mentioned air conditioning control method. During use, the air conditioner can flexibly increase or decrease the frequency of shielding resonance, thereby reducing the resonance of the air conditioner, which helps to improve the user experience and extend the service life of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a flow chart of an air conditioning control method provided in an embodiment of the present invention; Figure 2 It is a logic diagram of the air conditioning control method provided in Embodiment 1 of the present invention. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] In order to deal with the resonance problem, existing air conditioners usually identify the resonant frequency points in advance during the development stage, and set these frequency points to be shielded in the program. In this way, the unit will automatically skip these shielded frequency points during actual operation, thereby avoiding resonance and abnormal noise from the entire unit. However, the preset shielded frequency points cannot completely avoid the resonant frequency points when the air conditioner is actually used. This will cause users to still encounter resonance noise troubles during the use of the air conditioner, seriously affecting the user experience.

[0028] Based on this, the present application provides an air conditioning control method.

[0029] Example 1 like Figure 1-Figure 2 As shown, this embodiment provides an air conditioning control method, including: S100, during the operation of the air conditioner, determine whether an instruction to block the current frequency is received; the instruction to block the current frequency includes an instruction generated internally by the air conditioner and an instruction sent externally; specifically, the instruction generated internally by the air conditioner can be a sensor inside the air conditioner, which collects environmental information and determines whether the current operating frequency needs to be blocked based on the environmental information and the built-in algorithm. The instruction sent externally is based on the user's own experience. For example, if the user feels that the noise of the air conditioner is too loud during operation, the user sends an instruction to block the current frequency to the air conditioner through an app or a remote control.

[0030] S200: If yes, determine whether the air conditioner is within the preset operating constraint conditions; specifically, in this embodiment, the preset operating constraint conditions include: The air conditioner is currently in the process of executing the frequency increase / decrease program, and the current frequency interval has at least one operable frequency point different from the current frequency. Furthermore, the current frequency zone is a preset operating frequency interval of the compressor, wherein the preset operating frequency interval includes 0-20Hz, 20-40Hz, 40-60Hz, 60-80Hz, 80-100Hz, and 100-120Hz. At least one operable frequency is retained in each frequency interval and cannot be blocked. This can ensure that the air-conditioning system can operate normally and retain the comfort control advantages of the frequency conversion system, and it is necessary to retain an operable frequency in each frequency interval.

[0031] In this embodiment, the preset operating constraints are specifically defined. When the compressor is frequency-up / frequency-down, the whole machine vibrates greatly and the sound changes significantly. This is a normal phenomenon, not a real resonance abnormality. Moreover, the frequency changes quickly in this process, making it difficult to accurately operate the shielding, and the frequency points in these changing processes are not stable operating frequencies. The unit will not operate at this frequency after it is stable, so it is reasonable not to execute the shielding instruction at this time, which can avoid mistakenly shielding the normal operating frequency. In this embodiment, after determining whether the air conditioner is currently in the process of executing the frequency-up / frequency-down program, it enters the rhythm of judging whether the "current frequency interval has at least one operable frequency point different from the current frequency". This condition is to ensure that the air-conditioning system can operate normally while maintaining the comfort control advantage of the variable frequency system. If the shielding is performed when there are no other operable frequency points in the current frequency interval, the air conditioner may not be able to operate normally in this interval, affecting the cooling or heating effect, and retaining the operable frequency can avoid this situation.

[0032] S300: If yes, the instruction to shield the current frequency is not executed; if no, the instruction to shield the current frequency is executed and the shielded frequency is stored.

[0033] If the two preset operating constraints are met at the same time, that is, the frequency is in the process of frequency increase / decrease and the current frequency interval has at least one operable frequency point different from the current frequency, the control system does not execute the instruction to block the current frequency. For example, during the frequency increase process, the frequency changes rapidly. Even if a blocking instruction is received at this time, the blocking operation is not performed to ensure that the air conditioner can adjust the frequency normally and achieve a stable cooling or heating effect.

[0034] If the preset operating constraints are not met, that is, it is not in the frequency increase / decrease program, or there are no other operable frequency points in the current frequency range (but this situation rarely occurs because the design has considered retaining the operable frequency), the control system executes the instruction to shield the current frequency. For example, when the air conditioner is running stably at 50Hz, the user perceives obvious resonance noise and sends a shielding instruction, and the air conditioner is not in the frequency increase / decrease process at this time. The control system records 50Hz as the shielding frequency in the memory inside the air conditioner, and controls the compressor to adjust the operating frequency to avoid 50Hz, and select other suitable frequencies in the range (such as 55Hz) to continue running. After executing the shielding instruction, the shielded frequency information is stored in the non-volatile memory inside the air conditioner. In this way, even if the air conditioner is powered off and restarted, the system can still remember the previously shielded frequencies and continue to avoid these frequencies during subsequent operation. At the same time, users can view the list of shielded frequencies through the remote control or APP, and have the function of deleting specific shielded frequencies or resetting all shielded frequencies. For example, if the user finds that a certain shielding operation is wrong during subsequent use, the corresponding shielding frequency can be deleted through the APP to restore the normal use of the air conditioner.

[0035] The above-mentioned air conditioning control method is executed in the controller of the air conditioner. When the air conditioner is running, the control system of the air conditioner will monitor in real time whether the instruction to shield the current frequency is received. There are two sources of this instruction, one is the instruction sent by the user through external devices such as remote control and APP, and the other is the instruction generated inside the air conditioner based on its own operating status. After receiving the instruction to shield the current frequency, the air conditioner will further determine whether it is in the preset operating constraint conditions. If the air conditioner is not in the preset operating constraint conditions, the system will execute the instruction to shield the current frequency. In actual use, the user can manually shield the frequency points that cause abnormal noise according to his own feelings and needs, so as to obtain a more comfortable use experience. Alternatively, the automatic monitoring function of the air conditioner can automatically identify and shield abnormal frequency points without user intervention, further improving the convenience of use. By shielding the frequency points that cause resonance, problems such as pipe breakage caused by resonance can be effectively reduced, the risk and cost of after-sales maintenance can be reduced, and the air conditioner can be prevented from running for a long time at the resonance frequency, which helps to extend the service life of the air conditioner.

[0036] Example 2 This embodiment provides a preset operation constraint condition different from that of Embodiment 1.

[0037] In this embodiment, the preset operating constraints include: The air conditioner is currently in the process of performing a frequency increase / decrease procedure; or, The current frequency interval has at least one operable frequency point that is different from the current frequency.

[0038] Another implementation method of presetting the operating constraint condition is provided. In this embodiment, the two conditional expressions exist at the same time. By setting the two presetting conditions, the judgment range of the air conditioner can be increased, so that the air conditioner can better shield a specific frequency.

[0039] In this embodiment, if the control system of the air conditioner meets any one of the two conditions that "the air conditioner is currently executing a frequency increase / decrease program" and "the current frequency interval has at least one operable frequency point different from the current frequency", the control system does not execute the instruction to block the current frequency.

[0040] If both of the above conditions are not met, the control system executes the instruction to shield the current frequency and stores the shielded frequency in the memory inside the air conditioner. For example, after the air conditioner has been running stably for 15 minutes, it is not in the frequency increase / decrease process, and there are other operable frequency points in the current frequency range. At this time, if a shielding instruction is received, the system will shield the current frequency (such as 50Hz) and control the compressor to adjust to other suitable frequencies in the range (such as 55Hz) to operate.

[0041] Example 3 This embodiment is improved on the basis of embodiment 1.

[0042] like Figure 1 As shown, in this embodiment, the air conditioner operation process also includes: Get the preset frequency shielding point; Control the compressor to operate outside the preset frequency cutoff point.

[0043] When the air conditioner is running and the compressor starts running, the control system will automatically control the compressor to exclude these frequency points based on the preset frequency shielding point information obtained. When selecting the operating frequency, if the currently calculated suitable operating frequency happens to be the preset shielding point, the system will adjust the frequency and select other suitable operating frequencies within the frequency range.

[0044] By obtaining the preset frequency shielding points and controlling the compressor to avoid these points, the chance of the compressor running at the frequency points that may cause resonance is reduced from the source. Because resonance will cause additional stress and wear on the air conditioner's piping system, compressor and other components, long-term resonance state is likely to cause component damage, such as copper pipe breakage, compressor failure, etc. Avoiding these frequency points can effectively reduce the damage of resonance to the equipment, extend the service life of the air conditioner, and reduce maintenance costs.

[0045] In this embodiment, the control method operates as follows: After the air conditioner is powered on, it first performs the initialization operation. The control system reads the preset frequency shielding point information from the built-in memory. These preset frequency shielding points may be frequencies that are easy to cause resonance determined through a large number of experiments and tests during the product development stage, or they may be set and saved by the user according to the actual situation during previous use.

[0046] For example, 45Hz and 75Hz are recorded in the memory as preset frequency shielding points. At the same time, the control system initializes the operating parameters of the compressor, including determining the initial operating frequency range. Assuming that in a cooling scenario with an indoor temperature of 30°C and a set temperature of 26°C, the initial operating frequency range of the compressor is set to 40-60Hz.

[0047] When the compressor starts running, the control system calculates the current appropriate operating frequency based on the indoor and outdoor temperatures, set temperature and other relevant operating parameters. After the calculated frequency value is determined, the control system will compare it with the preset frequency shielding point.

[0048] If the calculated suitable operating frequency is not the preset shielding point, for example, the calculated frequency is 50Hz, and 50Hz is not within the preset shielding point (45Hz, 75Hz), the compressor will directly operate at this frequency.

[0049] If the calculated suitable operating frequency happens to be the preset shielding point, for example, the calculated frequency is 45Hz, and 45Hz is the preset shielding point, the system will look for other suitable operating frequencies within the preset operating frequency range (40-60Hz) where the frequency is located. The system will give priority to the frequency that is closest to the original calculated frequency and can be operated, such as selecting 48Hz as the operating frequency of the compressor, so as to ensure that the compressor avoids the preset resonant frequency point and operates stably.

[0050] During the operation of the air conditioner, the control system continuously monitors the operating status of the compressor, including operating frequency, vibration amplitude, temperature and other parameters. At the same time, the system will also determine in real time whether a new instruction to block the current frequency is received (as described in Example 1, the instruction includes an instruction generated inside the air conditioner and an instruction sent from the outside).

[0051] If a new shielding instruction is received and the preset operating constraints in Example 1 are met (such as the air conditioner is not currently executing a frequency increase / decrease program, and the current frequency range has at least one operable frequency point different from the current frequency), the system executes the instruction to shield the current frequency, stores the newly shielded frequency in the memory, and updates the preset frequency shielding point information.

[0052] For example, when the air conditioner is running stably at 55Hz, the user finds resonance noise and sends a shielding command through the remote control. After the system confirms that the conditions are met, it records 55Hz in the memory as the new shielding frequency. After that, the compressor will avoid 55Hz when running.

[0053] Better yet, the user can view the currently preset frequency shielding point list through the remote control or mobile phone APP to understand which frequencies are set to be shielded. At the same time, the user can also manually add or delete shielded frequencies.

[0054] For example, if the user finds that a frequency that was originally blocked no longer causes resonance problems during subsequent use, the user can delete the frequency from the blocked list through the APP, so that the air conditioner can select the frequency again in subsequent operation. In addition, if the user finds a new resonant frequency point, it can also be manually added to the blocked list.

[0055] Example 4 This embodiment is improved on the basis of embodiment 1.

[0056] In this embodiment, the air conditioner operation process also includes: Get the real-time noise value of the space where the air conditioner is located; Determine whether the real-time noise value exceeds a preset noise threshold; If so, determine whether the air conditioner is within the preset operating constraints; If so, the instruction to shield the current frequency is not executed; if not, the instruction to shield the current frequency is executed and the shielded frequency is stored.

[0057] Furthermore, after determining that the real-time noise value exceeds a preset noise threshold, the method further includes: Analyze the frequency spectrum of the noise and determine the main frequency components of the current noise; According to the main frequency components of the noise, determine whether the current compressor operating frequency matches the noise frequency; If so, the process proceeds to the step of determining whether the air conditioner is within the preset operating constraints.

[0058] In this embodiment, a shielding method for automatically realizing the operating frequency of the compressor is provided. During the operation of the air conditioner, the built-in noise sensor continues to work and obtains the real-time noise value of the space where the air conditioner is located at a certain time interval (for example, every second). These noise values ​​are transmitted to the control system of the air conditioner in real time for processing. For example, in a quiet bedroom environment, the noise sensor continuously collects environmental sound data and converts it into corresponding noise values. A noise threshold is preset in the control system of the air conditioner, which is determined based on the human body's comfortable perception of noise and product design standards. When the real-time noise value is obtained, the system immediately compares it with the preset noise threshold. Assuming that the preset noise threshold is 40dB(A), if the real-time noise value collected at a certain moment is 45dB(A), which exceeds the preset threshold, the system starts a series of subsequent judgment processes; if it does not exceed, it continues to maintain the normal monitoring state without additional processing.

[0059] When it is determined that the real-time noise value exceeds the preset threshold, the control system performs spectrum analysis on the collected noise signal. Through professional algorithms such as fast Fourier transform (FFT), the noise signal is decomposed into different frequency components and the main frequency components are determined. For example, after spectrum analysis, it is found that the main frequency components of the current noise are concentrated around 70Hz. Compare the current operating frequency of the compressor with the main frequency components of the noise. If the current operating frequency of the compressor is 70Hz, which is consistent with the main frequency components of the noise, it indicates that the operating frequency of the compressor may match the frequency of the noise. At this time, the step of determining whether the air conditioner is under the preset operating constraints is entered; if the frequencies of the two do not match, for example, the operating frequency of the compressor is 50Hz, it means that the current noise is not caused by the resonance of the compressor, and the system returns to the normal monitoring state and continues to obtain the real-time noise value for subsequent judgment.

[0060] The preset operation constraint condition is determined by referring to the preset operation constraint condition in Example 1, that is, it is determined whether the control air conditioner is currently in the process of executing the frequency increase / frequency decrease program, and whether the current frequency interval has at least one operable frequency point different from the current frequency. Assume that the air conditioner is increasing the frequency from 60Hz to 80Hz and is in the frequency increase program, or there are other operable frequency points such as 75Hz in addition to 70Hz in the current frequency interval (such as 60-80Hz), which meets the preset operation constraint condition.

[0061] This embodiment can accurately determine the frequency component that causes the noise and match it with the compressor operating frequency by obtaining real-time noise values ​​and performing spectrum analysis. Shielding is performed only when the compressor operating frequency matches the noise frequency and other conditions are met, avoiding unnecessary frequency shielding operations and ensuring that only the noise that is truly caused by the resonance of the compressor is processed, thereby more effectively reducing the resonance noise generated when the air conditioner is running and providing users with a quiet use environment. Timely shielding of the noise generated by the resonance frequency greatly improves the user's comfort during the use of the air conditioner. Whether resting, studying or working, the user will not be disturbed by the resonance noise of the air conditioner, thereby improving the user's satisfaction with the air conditioning product.

[0062] Example 5 like Figure 1-Figure 2 As shown, this embodiment provides an air conditioner that implements the above-mentioned air conditioning control method in real time. During use, the air conditioner can flexibly increase or decrease the frequency of shielding resonance, thereby reducing the resonance of the air conditioner, which helps to improve the user experience and extend the service life of the air conditioner.

[0063] Specifically, the air conditioner comprises: A controller, the controller is used to implement the air conditioning control method as described above, so as to control the operation of the air conditioner; A compressor, configured to adjust an operating frequency according to a control signal from the controller; The memory is electrically connected to the controller and is used to store preset operating constraints and shielding frequency point information. Furthermore, the controller is provided with a wireless communication module and a noise detection module, and both the wireless communication module and the noise detection module are electrically connected to the controller.

[0064] This air conditioner works as follows: When the user turns on the air conditioner, the controller first performs a self-check and reads the preset operating constraints and existing shielding frequency point information from the memory. At the same time, the noise detection module begins to monitor the noise conditions of the air conditioner's environment in real time, and the wireless communication module is turned on, waiting to establish a connection with the user's smart device (such as a mobile phone). For example, the preset operating constraints stipulate that frequency shielding is not performed during the compressor frequency increase or decrease, and the memory has stored several frequency points that may cause resonance recorded during previous use.

[0065] When the air conditioner is running, the compressor adjusts the operating frequency according to the initial control signal of the controller to meet the temperature and other requirements set by the user. The noise detection module continuously collects environmental noise data and transmits the real-time noise value to the controller. The controller compares the real-time noise value with the preset noise threshold. Assuming the preset noise threshold is 45dB(A), when the environmental noise reaches 50dB(A), the controller starts analyzing the noise spectrum. Through the internal algorithm, the main frequency components of the current noise are determined.

[0066] The controller matches the determined main frequency component of the noise with the current operating frequency of the compressor. If the two match, for example, the main frequency component of the noise and the operating frequency of the compressor are both 60Hz, the controller then determines whether the air conditioner is within the preset operating constraints. If the compressor is not in the process of frequency increase or decrease at this time, and there are other operable frequency points in the current frequency range, the controller issues an instruction to shield the current frequency (60Hz). The controller sends 60Hz as the new shielding frequency point information to the memory for storage. At the same time, a control signal is sent to the compressor, requiring it to adjust the operating frequency to avoid 60Hz. After receiving the signal, the compressor selects a suitable, unshielded frequency in the current frequency range, such as 65Hz, and continues to operate.

[0067] Users can use the air conditioner control APP on their mobile phones to establish a connection with the controller using the wireless communication module. Users can view the current operating status of the air conditioner, the list of blocked frequency points and other information on the APP.

[0068] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0069] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0070] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air conditioning control method, characterized in that: include: During the operation of the air conditioner, it is determined whether an instruction to shield the current frequency is received; the instruction to shield the current frequency includes an instruction generated internally by the air conditioner and an instruction sent externally; If so, determine whether the air conditioner is within the preset operating constraints; If so, the instruction to shield the current frequency is not executed; if not, the instruction to shield the current frequency is executed and the shielded frequency is stored.

2. The air conditioning control method according to claim 1, characterized in that: The preset operating constraints include: The air conditioner is currently executing a frequency increase / decrease procedure, and the current frequency interval has at least one operable frequency point that is different from the current frequency.

3. The air conditioning control method according to claim 1, characterized in that: The preset operating constraints include: The air conditioner is currently in the process of performing a frequency increase / decrease procedure; or, The current frequency interval has at least one operable frequency point that is different from the current frequency.

4. The air conditioning control method according to claim 2 or 3, characterized in that: The current frequency zone is a preset operating frequency range of the compressor, wherein the preset operating frequency range includes 0-20 Hz, 20-40 Hz, 40-60 Hz, 60-80 Hz, 80-100 Hz, and 100-120 Hz.

5. The air conditioning control method according to any one of claims 1 to 3, characterized in that: Also includes: During the operation of the air conditioner, the preset frequency shielding point is obtained; Control the compressor to operate outside the preset frequency cutoff point.

6. The air conditioning control method according to any one of claims 1 to 3, characterized in that: Also includes: During the operation of the air conditioner, obtain the real-time noise value of the space where the air conditioner is located; Determine whether the real-time noise value exceeds a preset noise threshold; If so, determine whether the air conditioner is within the preset operating constraints; If so, the instruction to shield the current frequency is not executed; if not, the instruction to shield the current frequency is executed and the shielded frequency is stored.

7. The air conditioning control method according to claim 6, characterized in that: After determining that the real-time noise value exceeds the preset noise threshold, the method further includes: Analyze the frequency spectrum of the noise and determine the main frequency components of the current noise; According to the main frequency components of the noise, determine whether the current compressor operating frequency matches the noise frequency; If so, the process proceeds to the step of determining whether the air conditioner is within the preset operating constraints.

8. An air conditioner, characterized in that: Used to implement the air conditioning control method as described in any one of claims 1-7.

9. The air conditioner according to claim 8, characterized in that: The air conditioner comprises: A controller, the controller being used to control the operation of the air conditioner; A compressor, configured to adjust an operating frequency according to a control signal from the controller; The memory is electrically connected to the controller and is used to store preset operating constraint conditions and shielding frequency point information.

10. The air conditioner according to claim 9, characterized in that: The controller is provided with a wireless communication module and a noise detection module, and both the wireless communication module and the noise detection module are electrically connected to the controller.

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