CN117308272B - Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium - Google Patents

Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium Download PDF

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Publication number
CN117308272B
CN117308272B CN202311603843.6A CN202311603843A CN117308272B CN 117308272 B CN117308272 B CN 117308272B CN 202311603843 A CN202311603843 A CN 202311603843A CN 117308272 B CN117308272 B CN 117308272B
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noise
target
air conditioner
decibel
rotating speed
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CN117308272A (en
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黄启斌
李若泽
符策
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/40—Noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to a noise reduction method and device based on an air conditioner, the air conditioner and a computer readable storage medium, wherein the method is implemented by collecting noise information in a space where the air conditioner is positioned in real time; analyzing the noise information to obtain noise parameters; the noise parameters at least comprise noise decibels, noise frequency and noise phase; when the noise decibel is larger than the first target noise decibel, controlling the wind sweeping direction of the wind sweeping device to be opposite to the current wind sweeping direction; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; and outputting the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase.

Description

Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a noise reduction method and device based on an air conditioner, the air conditioner and a computer readable storage medium.
Background
With the development of scientific technology, more and more air conditioners are in daily life of people, but the air conditioners bring convenience to people and inevitably bring further problems. For example, the air conditioner may generate noise during use, which affects the user's experience.
Disclosure of Invention
Accordingly, an objective of the present invention is to provide a noise reduction method and apparatus based on an air conditioner, an air conditioner and a computer readable storage medium, so as to solve the problem that noise generated by air conditioner in the prior art affects the use experience of users.
According to a first aspect of an embodiment of the present invention, there is provided a noise reduction method based on an air conditioner, which is applicable to the air conditioner, including:
collecting noise information in the space where the air conditioner is located in real time;
analyzing the noise information to obtain noise parameters; the noise parameters at least comprise noise decibels, noise frequency and noise phase;
when the noise decibel is larger than the first target noise decibel, controlling the wind sweeping direction of the wind sweeping device to be opposite to the current wind sweeping direction; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; and outputting the same-frequency anti-phase sound wave obtained according to the noise frequency and the noise phase.
Preferably, the controlling the target rotation speed of the air conditioner fan to decrease until the sound decibel in the space where the air conditioner is located is less than or equal to the first target noise decibel includes:
acquiring the current rotating speed of an air conditioner fan and a preset target rotating speed;
determining the rotating speed adjustment rate of the air conditioner fan according to the current rotating speed and the target rotating speed;
updating the target rotating speed according to the current rotating speed and the rotating speed adjustment rate; wherein the target rotational speed is less than the current rotational speed;
controlling the air conditioner fan to run based on the target rotating speed, and acquiring sound decibels in a space where the air conditioner is located;
and if the sound decibel is larger than the first target noise decibel, executing the steps from the determination of the rotating speed adjustment rate of the air conditioner fan to the acquisition of the sound decibel in the space where the air conditioner is located.
Preferably, the determining the rotation speed adjustment rate of the air conditioner fan according to the current rotation speed and the target rotation speed includes:
determining an absolute value of a difference between the target rotational speed and the current rotational speed as a rotational speed difference;
determining a ratio between the first target noise decibel and the noise decibel as a decibel ratio;
and determining the ratio of the product of the rotating speed difference value and the decibel ratio to the target rotating speed as the rotating speed adjustment rate of the air conditioner fan.
Preferably, the updating the target rotation speed according to the current rotation speed and the rotation speed adjustment rate includes:
determining the product between the current rotation speed and the rotation speed adjustment rate as an adjustment rotation speed;
and updating the target rotating speed through the adjusting rotating speed so that the target rotating speed is the same as the adjusting rotating speed.
Preferably, the outputting the same-frequency inverted sound wave obtained from the noise frequency and the noise phase includes:
acquiring a second target noise decibel and a white noise identifier;
if the noise decibel is smaller than or equal to the second target noise decibel and the white noise mark indicates that the white noise is not reserved, determining that the use mode of the air conditioner is a mute mode; and outputting mute same-frequency opposite-phase sound waves; the mute frequency of the mute same-frequency anti-phase sound wave is the same as the noise frequency, and the mute phase of the mute same-frequency anti-phase sound wave is 180 degrees different from the noise phase.
Preferably, after the acquiring the second target noise decibel and the white noise signature, the method further includes:
if the noise decibel is smaller than or equal to the second target noise decibel and the white noise mark indicates that white noise is reserved, determining that the use mode of the air conditioner is a noise reduction mode;
if the noise decibel is greater than the second target noise decibel and the white noise mark indicates that white noise is reserved, determining that the use mode of the air conditioner is a white noise mode;
when the using mode is the noise reduction mode or the white noise mode, acquiring initial noise parameters acquired in advance; wherein, the initial noise parameter comprises initial noise frequency and initial noise phase;
removing target noise parameters matched with the initial noise parameters from the noise parameters to obtain target noise parameters; wherein a target noise frequency contained in the target noise parameter is different from the initial noise frequency, and a target noise phase contained in the target noise parameter is different from the initial noise phase;
outputting a target same-frequency anti-phase sound wave according to the target noise frequency and the target noise phase; the target frequency of the target same-frequency anti-phase sound wave is the same as the target noise frequency, and the target phase of the target same-frequency anti-phase sound wave is 180 degrees different from the target noise phase.
Preferably, the initial noise parameter is a parameter of environmental noise of a space where the air conditioner is located before the air conditioner operates.
According to a second aspect of an embodiment of the present invention, there is provided a noise reduction device based on an air conditioner, which is adapted to the air conditioner, including:
the acquisition unit is used for acquiring noise information in the space where the air conditioner is located in real time;
the analysis unit is used for analyzing the noise information to obtain noise parameters; the noise parameters at least comprise noise decibels, noise frequency and noise phase;
the control unit is used for controlling the wind sweeping direction of the wind sweeping device to be opposite to the current wind sweeping direction when the noise decibel is larger than the first target noise decibel; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; and outputting the same-frequency anti-phase sound wave obtained according to the noise frequency and the noise phase.
According to a third aspect of an embodiment of the present invention, there is provided an air conditioner including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method described above.
According to a fourth aspect of embodiments of the present invention, there is provided a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the above-described method.
The technical scheme provided by the embodiment of the invention can comprise the following beneficial effects:
the collected noise information in the space where the air conditioner is located can be analyzed to obtain noise parameters including noise decibels, noise frequency and noise phase; and the size of the noise decibels can be analyzed, and if the noise decibels are larger than the preset first target noise decibels, the space where the air conditioner is located can be noise reduced. Specifically, the wind sweeping direction of the wind sweeping device can be controlled to be reversed, so that the wind sweeping device is prevented from generating larger noise when reaching a limit angle; the rotating speed of the air conditioner fan can be reduced, so that noise generated by the air conditioner fan is reduced; and the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase can be output so as to offset the sound wave generated by the noise, so that the whole noise in the space where the air conditioner is positioned is reduced, and the use experience of an air conditioner user is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow diagram illustrating a method of air conditioner-based noise reduction, according to an exemplary embodiment;
fig. 2 is a schematic structural view illustrating a noise reduction processing module provided in an air conditioner according to an exemplary embodiment;
FIG. 3 is a schematic block diagram of an air conditioner-based noise reducer, according to an example embodiment;
fig. 4 is a schematic diagram illustrating an internal control circuit of an air conditioner according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
As described in the foregoing background art, the sweeping robot is now common, but the main function is to clean the floor, and the function is single. In order to solve the problems in the background art, the following exemplary embodiments are now provided. It should be noted that:
it should be noted that any number of elements in the figures are for illustration and not limitation, and that any naming is used for distinction only and not for limitation.
The principles and spirit of the present application are explained in detail below with reference to several representative embodiments thereof.
Fig. 1 is a flowchart illustrating a noise reduction method based on an air conditioner according to an exemplary embodiment, and the method is applicable to the air conditioner as shown in fig. 1, and includes:
and step S101, collecting noise information in the space where the air conditioner is located in real time.
In this embodiment of the present application, the noise information may include noise information of air conditioner operation, noise information of electronic device operation, noise information of decoration, noise information of vehicle running on a road, noise information of speaking, and the like, which is not limited to this embodiment of the present application.
In this embodiment, noise information may be collected through a sound source collection module, including but not limited to: microphones, sound collectors, sound card converters, etc.
And step S102, analyzing the noise information to obtain noise parameters.
In this embodiment of the present application, the noise parameters include at least noise decibels, noise frequencies, and noise phases. The collected noise information can be analyzed through a sound source analysis module preset in the air conditioner, and noise parameters corresponding to the noise information are obtained.
Step S103, when the noise decibel is larger than a first target noise decibel, controlling the wind sweeping direction of the wind sweeping device to be opposite to the current wind sweeping direction; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; and outputting the same-frequency anti-phase sound wave obtained according to the noise frequency and the noise phase.
Referring to fig. 2 together, fig. 2 is a schematic diagram illustrating a structure of a noise reduction processing module 20 provided in an air conditioner according to an exemplary embodiment; the noise reduction processing module 20 includes a wind sweeping control module 201, a fan control module 202, and a common-frequency inverse noise reduction module 203.
Specifically, the wind sweeping control module 201 is configured to control a wind sweeping direction of the wind sweeping device to be opposite to a current wind sweeping direction; the fan control module 202 is configured to control a target rotation speed of an air conditioner fan to decrease until a sound decibel in a space where the air conditioner is located is less than or equal to the first target noise decibel; the same-frequency anti-phase noise reduction module 203 is configured to output a same-frequency anti-phase sound wave obtained according to the noise frequency and the noise phase.
Optionally, in the voice air conditioner, the sound source collecting module may be a microphone preset for the voice air conditioner, and the sound source analyzing module may be a voice module preset for the voice air conditioner. The common-frequency inverse noise reduction module 203 may be a voice module and a speaker that are preset in a voice air conditioner. Therefore, the purposes of reducing and eliminating noise of the air conditioner are achieved under the condition that the hardware cost is not increased, and the use experience of a user is improved.
As an optional implementation, the method for controlling the target rotation speed of the air conditioner fan to decrease until the sound decibel in the space where the air conditioner is located is less than or equal to the first target noise decibel may specifically be:
acquiring the current rotating speed of an air conditioner fan and a preset target rotating speed;
determining the rotating speed adjustment rate of the air conditioner fan according to the current rotating speed and the target rotating speed;
updating the target rotating speed according to the current rotating speed and the rotating speed adjustment rate; wherein the target rotational speed is less than the current rotational speed;
controlling the air conditioner fan to run based on the target rotating speed, and acquiring sound decibels in a space where the air conditioner is located;
and if the sound decibel is larger than the first target noise decibel, executing the steps from the determination of the rotating speed adjustment rate of the air conditioner fan to the acquisition of the sound decibel in the space where the air conditioner is located.
According to the embodiment, the rotating speed of the air conditioner fan can be controlled to be reduced, and noise emitted by the air conditioner fan is reduced in the process of reducing the rotating speed of the air conditioner fan, so that the rotating speed of the air conditioner fan can be controlled to be continuously reduced until the sound decibel in the space where the air conditioner is located is smaller than or equal to the first target noise decibel, and therefore the space where the air conditioner is located is reduced by reducing the rotating speed of the air conditioner fan, and the reliability of noise reduction is improved.
Specifically, the method for determining the rotation speed adjustment rate of the air conditioner fan according to the current rotation speed and the target rotation speed may specifically be:
determining an absolute value of a difference between the target rotational speed and the current rotational speed as a rotational speed difference;
determining a ratio between the first target noise decibel and the noise decibel as a decibel ratio;
and determining the ratio of the product of the rotating speed difference value and the decibel ratio to the target rotating speed as the rotating speed adjustment rate of the air conditioner fan.
According to the implementation mode, the rotation speed adjustment rate for adjusting the rotation speed of the air conditioner fan can be obtained by calculating based on the target rotation speed, the current rotation speed, the first target noise decibel and the noise decibel in the current environment, so that the determination of the rotation speed adjustment rate is highly related to the parameters, and the rotation speed adjustment rate is more matched with the real rotation speed of the air conditioner fan.
Specifically, the rotation speed adjustment rate K v The calculation formula of (2) can be:
wherein V is target For target rotation speed, V now N is the current rotation speed target For the first target noise decibel, N now Is noise decibel.
Optionally, the updating manner of the target rotation speed according to the current rotation speed and the rotation speed adjustment rate may specifically be:
determining the product between the current rotation speed and the rotation speed adjustment rate as an adjustment rotation speed;
and updating the target rotating speed through the adjusting rotating speed so that the target rotating speed is the same as the adjusting rotating speed.
The implementation of the implementation mode can calculate according to the calculated rotating speed adjustment rate and the current rotating speed to obtain the adjustment rotating speed; and updating the target rotating speed based on the adjusted rotating speed so as to enable the target rotating speed to have real-time performance.
Specifically, the calculation formula for adjusting the rotation speed may be:
as an alternative implementation, the mode of outputting the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase may specifically be:
acquiring a second target noise decibel and a white noise identifier;
if the noise decibel is smaller than or equal to the second target noise decibel and the white noise mark indicates that the white noise is not reserved, determining that the use mode of the air conditioner is a mute mode; and outputting mute same-frequency opposite-phase sound waves; the mute frequency of the mute same-frequency anti-phase sound wave is the same as the noise frequency, and the mute phase of the mute same-frequency anti-phase sound wave is 180 degrees different from the noise phase.
According to the embodiment, in the mute mode, the mute same-frequency opposite-phase sound wave with the same frequency as the noise and 180 degrees different in phase from the noise phase is output, so that the mute same-frequency opposite-phase sound wave can completely offset noise in the environment where the air conditioner is located, and the noise reduction effect is improved.
Optionally, after the acquiring the second target noise decibel and the white noise identifier, the method further includes:
if the noise decibel is smaller than or equal to the second target noise decibel and the white noise mark indicates that white noise is reserved, determining that the use mode of the air conditioner is a noise reduction mode;
if the noise decibel is greater than the second target noise decibel and the white noise mark indicates that white noise is reserved, determining that the use mode of the air conditioner is a white noise mode;
when the using mode is the noise reduction mode or the white noise mode, acquiring initial noise parameters acquired in advance; wherein, the initial noise parameter comprises initial noise frequency and initial noise phase;
removing target noise parameters matched with the initial noise parameters from the noise parameters to obtain target noise parameters; wherein a target noise frequency contained in the target noise parameter is different from the initial noise frequency, and a target noise phase contained in the target noise parameter is different from the initial noise phase;
outputting a target same-frequency anti-phase sound wave according to the target noise frequency and the target noise phase; the target frequency of the target same-frequency anti-phase sound wave is the same as the target noise frequency, and the target phase of the target same-frequency anti-phase sound wave is 180 degrees different from the target noise phase.
In this embodiment of the present application, the initial noise parameter is a parameter of environmental noise of a space where the air conditioner is located before the air conditioner operates.
According to the implementation mode, the initial noise parameters existing in the space where the air conditioner is located before the air conditioner operates can be obtained in the white noise mode or the noise reduction mode, and the initial noise parameters can be removed from the noise parameters, so that the target noise parameters which do not contain the initial noise parameters are obtained; and outputting a target same-frequency opposite-phase sound wave with the same target frequency as the target noise frequency and 180 degrees different from the target noise phase based on the obtained target noise frequency and the target noise phase of the target noise parameter, so that noise in the environment where the air conditioner is positioned is counteracted by the output target same-frequency opposite-phase sound wave, and only the initial noise is reserved, so that the noise reduction effect of the air conditioner accords with the use habit of a user.
For example, the air conditioner may be preset with three noise reduction modes, a mute mode, a white noise mode, and a free noise reduction mode; the wind sweeping direction is controlled to be reversed, so that larger noise generated by the limiting wind sweeping angle is avoided;
the fan control module 202 controls the air conditioner fan to have a fixed target rotation speed V target In operation, if N now >N target The fan control module 202 controls the target rotational speed of the air conditioner fan to decrease until N now ≤N target ；
When the fan control module 202 controls the target rotation speed of the air conditioner fan to be in the process of changing, if N now >N target Determining the rotation speed adjustment rate K v The air conditioner fan operation noise is reduced by adopting a target rotating speed slow-down mode of the air conditioner fan, and at the moment, the current target rotating speed of the fan is as follows:；
same-frequency anti-phase noise reduction module 203 sends out and N now (including initial noise decibel N) initial ) The same-frequency opposite-phase (same frequency, 180 DEG phase difference) sound wave counteracts N now (comprising N initial ）。
2. White noise mode:
when the wind sweeping control module 201 is in the wind sweeping operation process, if N now >N target The wind sweeping direction is controlled to be reversed, so that the limit wind sweeping angle is prevented from generating larger noise;
the fan control module 202 controls the air conditioner fan to have a fixed target rotation speed V target In operation, if N now >N target The fan control module 202 controls the target rotational speed of the air conditioner fan to decrease until N now ≤N target ；
When the fan control module 202 controls the target rotation speed of the air conditioner fan to be in the process of changing, if N now >N target Determining the rotation speed adjustment rate K v The air conditioner fan operation noise is reduced by adopting a target rotating speed slow-down mode of the air conditioner fan, and at the moment, the current target rotating speed of the fan is as follows:；
same-frequency anti-phase noise reduction module 203 sends out and N now (not including N initial ) The same-frequency opposite-phase (same frequency, 180 DEG phase difference) sound wave counteracts N now (not including N initial ）。
3. Free noise reduction mode:
when the wind sweeping control module 201 is in the wind sweeping operation process, if N now >N target +2 (i.e. N target +2 can be the second target noise decibel), then the wind direction reversal is controlled, and the larger noise generated by the limit wind angle is avoided;
the fan control module 202 controls the air conditioner fan to have a fixed target rotation speed V target In operation, if N now >N target +2, the fan control module 202 controls the target speed of the air conditioner fan to decrease until N now ≤N target ；
When the fan control module 202 controls the air conditioner fanIf N when the target rotation speed of (2) is in the process of changing now >N target +2, determining the rotation speed adjustment rate K v The air conditioner fan operation noise is reduced by adopting a target rotating speed slow-down mode of the air conditioner fan, and at the moment, the current target rotating speed of the fan is as follows:；
same-frequency anti-phase noise reduction module 203 sends out and N now (not including N initial ) The same-frequency opposite-phase (same frequency, 180 DEG phase difference) sound wave counteracts N now (not including N initial ）。
According to the embodiment of the application, the wind sweeping direction of the wind sweeping device can be controlled to be reversed, so that the wind sweeping device is prevented from generating larger noise when reaching a limit angle; the rotating speed of the air conditioner fan can be reduced, so that noise generated by the air conditioner fan is reduced; and the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase can be output so as to offset the sound wave generated by the noise, so that the whole noise in the space where the air conditioner is positioned is reduced, and the use experience of an air conditioner user is improved. In addition, the noise reduction reliability can be improved. In addition, the rotating speed adjustment rate can be more matched with the real rotating speed of the air conditioner fan. In addition, the method and the device can enable the target rotating speed to have real-time performance. In addition, the noise reduction effect can be improved. In addition, the noise reduction effect of the air conditioner can be in accordance with the use habit of a user.
Based on the same inventive concept, fig. 3 is a schematic block diagram illustrating an air conditioner-based noise reduction apparatus according to an exemplary embodiment, which is adapted to an air conditioner as shown in fig. 3, including:
the acquisition unit 301 is configured to acquire noise information in a space where the air conditioner is located in real time;
an analysis unit 302, configured to analyze the noise information to obtain a noise parameter; the noise parameters at least comprise noise decibels, noise frequency and noise phase;
a control unit 303, configured to control a wind sweeping direction of the wind sweeping device to be opposite to a current wind sweeping direction when the noise decibel is greater than a first target noise decibel; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; and outputting the same-frequency anti-phase sound wave obtained according to the noise frequency and the noise phase.
In the technical solution provided in this embodiment, the load is executed in a processor of the air conditioner in specific practice, or the load is executed in an electronic device communicatively connected to the processor of the air conditioner. The air conditioner includes: an air conditioner with or without an audio acquisition device; the audio acquisition device includes, but is not limited to: microphones, sound collectors, sound card converters, etc.
The implementation manner and the beneficial effects of each module in this embodiment may refer to the description of the corresponding method steps in the foregoing embodiment, which is not repeated in this embodiment.
It can be appreciated that the technical scheme provided by the embodiment can analyze the collected noise information in the space where the air conditioner is located to obtain noise parameters including noise decibels, noise frequency and noise phase; and the size of the noise decibels can be analyzed, and if the noise decibels are larger than the preset first target noise decibels, the space where the air conditioner is located can be noise reduced. Specifically, the wind sweeping direction of the wind sweeping device can be controlled to be reversed, so that the wind sweeping device is prevented from generating larger noise when reaching a limit angle; the rotating speed of the air conditioner fan can be reduced, so that noise generated by the air conditioner fan is reduced; and the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase can be output so as to offset the sound wave generated by the noise, so that the whole noise in the space where the air conditioner is positioned is reduced, and the use experience of an air conditioner user is improved.
Based on the same inventive concept, fig. 4 is a schematic diagram of an internal control circuit of an air conditioner according to an exemplary embodiment, as shown in fig. 4, including:
at least one processor 401, a communication interface 402; and
a memory 403 communicatively coupled to the at least one processor 401;
wherein the processor 401, the communication interface 402 and the memory 403 complete the communication with each other through the communication bus 404; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method described above.
The air conditioner includes: an air conditioner with or without an audio acquisition device; the audio acquisition device includes, but is not limited to: microphones, sound collectors, sound card converters, etc.
It can be appreciated that the technical scheme provided by the embodiment can analyze the collected noise information in the space where the air conditioner is located to obtain noise parameters including noise decibels, noise frequency and noise phase; and the size of the noise decibels can be analyzed, and if the noise decibels are larger than the preset first target noise decibels, the space where the air conditioner is located can be noise reduced. Specifically, the wind sweeping direction of the wind sweeping device can be controlled to be reversed, so that the wind sweeping device is prevented from generating larger noise when reaching a limit angle; the rotating speed of the air conditioner fan can be reduced, so that noise generated by the air conditioner fan is reduced; and the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase can be output so as to offset the sound wave generated by the noise, so that the whole noise in the space where the air conditioner is positioned is reduced, and the use experience of an air conditioner user is improved.
A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the above-described method is shown according to an exemplary embodiment.
The computer-readable storage medium disclosed in the present embodiment includes, but is not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
It can be appreciated that the technical scheme provided by the embodiment can analyze the collected noise information in the space where the air conditioner is located to obtain noise parameters including noise decibels, noise frequency and noise phase; and the size of the noise decibels can be analyzed, and if the noise decibels are larger than the preset first target noise decibels, the space where the air conditioner is located can be noise reduced. Specifically, the wind sweeping direction of the wind sweeping device can be controlled to be reversed, so that the wind sweeping device is prevented from generating larger noise when reaching a limit angle; the rotating speed of the air conditioner fan can be reduced, so that noise generated by the air conditioner fan is reduced; and the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase can be output so as to offset the sound wave generated by the noise, so that the whole noise in the space where the air conditioner is positioned is reduced, and the use experience of an air conditioner user is improved.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (8)

1. The noise reduction method based on the air conditioner is suitable for the air conditioner and is characterized by comprising the following steps of:
collecting noise information in the space where the air conditioner is located in real time;
analyzing the noise information to obtain noise parameters; the noise parameters at least comprise noise decibels, noise frequency and noise phase;
when the noise decibel is larger than the first target noise decibel, controlling the wind sweeping direction of the wind sweeping device to be opposite to the current wind sweeping direction; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; outputting the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase;
the target rotating speed of the air conditioner fan is controlled to be reduced until the sound decibel in the space where the air conditioner is positioned is less than or equal to the first target noise decibel, which comprises the following steps:
acquiring the current rotating speed of an air conditioner fan and a preset target rotating speed;
determining the rotating speed adjustment rate of the air conditioner fan according to the current rotating speed and the target rotating speed;
updating the target rotating speed according to the current rotating speed and the rotating speed adjustment rate; wherein the target rotational speed is less than the current rotational speed;
controlling the air conditioner fan to run based on the target rotating speed, and acquiring sound decibels in a space where the air conditioner is located;
if the sound decibel is greater than the first target noise decibel, executing the step from the step of determining the rotating speed adjustment rate of the air conditioner fan to the step of acquiring the sound decibel in the space where the air conditioner is located;
the determining the rotation speed adjustment rate of the air conditioner fan according to the current rotation speed and the target rotation speed comprises the following steps:
determining an absolute value of a difference between the target rotational speed and the current rotational speed as a rotational speed difference;
determining a ratio between the first target noise decibel and the noise decibel as a decibel ratio;
and determining the ratio of the product of the rotating speed difference value and the decibel ratio to the target rotating speed as the rotating speed adjustment rate of the air conditioner fan.
2. The method of claim 1, wherein updating the target rotational speed based on the current rotational speed and the rotational speed adjustment rate comprises:
determining the product between the current rotation speed and the rotation speed adjustment rate as an adjustment rotation speed;
and updating the target rotating speed through the adjusting rotating speed so that the target rotating speed is the same as the adjusting rotating speed.
3. The method of claim 1, wherein the outputting of the same-frequency anti-phase sound wave derived from the noise frequency and the noise phase comprises:
acquiring a second target noise decibel and a white noise identifier;
if the noise decibel is smaller than or equal to the second target noise decibel and the white noise mark indicates that the white noise is not reserved, determining that the use mode of the air conditioner is a mute mode; and outputting mute same-frequency opposite-phase sound waves; the mute frequency of the mute same-frequency anti-phase sound wave is the same as the noise frequency, and the mute phase of the mute same-frequency anti-phase sound wave is 180 degrees different from the noise phase.
4. The method of claim 3, wherein after the obtaining the second target noise decibel and white noise signature, the method further comprises:
if the noise decibel is smaller than or equal to the second target noise decibel and the white noise mark indicates that white noise is reserved, determining that the use mode of the air conditioner is a noise reduction mode;
if the noise decibel is greater than the second target noise decibel and the white noise mark indicates that white noise is reserved, determining that the use mode of the air conditioner is a white noise mode;
when the using mode is the noise reduction mode or the white noise mode, acquiring initial noise parameters acquired in advance; wherein, the initial noise parameter comprises initial noise frequency and initial noise phase;
removing target noise parameters matched with the initial noise parameters from the noise parameters to obtain target noise parameters; wherein a target noise frequency contained in the target noise parameter is different from the initial noise frequency, and a target noise phase contained in the target noise parameter is different from the initial noise phase;
outputting a target same-frequency anti-phase sound wave according to the target noise frequency and the target noise phase; the target frequency of the target same-frequency anti-phase sound wave is the same as the target noise frequency, and the target phase of the target same-frequency anti-phase sound wave is 180 degrees different from the target noise phase.
5. The method of claim 4, wherein the initial noise parameter is a parameter of ambient noise of a space in which the air conditioner is located prior to operation of the air conditioner.
6. Noise reduction device based on air conditioner, characterized in that is applicable to in the air conditioner, and its characterized in that includes:
the acquisition unit is used for acquiring noise information in the space where the air conditioner is located in real time;
the analysis unit is used for analyzing the noise information to obtain noise parameters; the noise parameters at least comprise noise decibels, noise frequency and noise phase;
the control unit is used for controlling the wind sweeping direction of the wind sweeping device to be opposite to the current wind sweeping direction when the noise decibel is larger than the first target noise decibel; controlling the target rotating speed of the air conditioner fan to be reduced until the sound decibel in the space where the air conditioner is positioned is smaller than or equal to the first target noise decibel; outputting the same-frequency opposite-phase sound wave obtained according to the noise frequency and the noise phase; the target rotating speed of the air conditioner fan is controlled to be reduced until the sound decibel in the space where the air conditioner is positioned is less than or equal to the first target noise decibel, which comprises the following steps:
acquiring the current rotating speed of an air conditioner fan and a preset target rotating speed;
determining the rotating speed adjustment rate of the air conditioner fan according to the current rotating speed and the target rotating speed;
updating the target rotating speed according to the current rotating speed and the rotating speed adjustment rate; wherein the target rotational speed is less than the current rotational speed;
controlling the air conditioner fan to run based on the target rotating speed, and acquiring sound decibels in a space where the air conditioner is located;
if the sound decibel is greater than the first target noise decibel, executing the step from the step of determining the rotating speed adjustment rate of the air conditioner fan to the step of acquiring the sound decibel in the space where the air conditioner is located;
the determining the rotation speed adjustment rate of the air conditioner fan according to the current rotation speed and the target rotation speed comprises the following steps:
determining an absolute value of a difference between the target rotational speed and the current rotational speed as a rotational speed difference;
determining a ratio between the first target noise decibel and the noise decibel as a decibel ratio;
and determining the ratio of the product of the rotating speed difference value and the decibel ratio to the target rotating speed as the rotating speed adjustment rate of the air conditioner fan.
7. An air conditioner, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-5.
8. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1-5.
CN202311603843.6A 2023-11-28 2023-11-28 Noise reduction method and device based on air conditioner, air conditioner and computer readable storage medium Active CN117308272B (en)

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