CN113074431A - Noise control method for air conditioner, readable storage medium and air conditioner - Google Patents
Noise control method for air conditioner, readable storage medium and air conditioner Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 claims description 14
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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
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—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
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- 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
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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
- 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
- F24F2013/247—Active noise-suppression
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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
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/40—Noise
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Abstract
The invention discloses a noise control method suitable for an air conditioner with upper air outlet and lower air outlet, a readable storage medium and an air conditioner. The control method comprises the following steps: collecting an outer ring noise value of an air conditioner; calculating a final target noise value in the operation of the air conditioner according to the outer ring noise value, the current operation mode of the air conditioner and the historical temperature regulation action; acquiring the optimal operation parameters of the air conditioner according to the final target noise value; and controlling the air conditioner to operate according to the optimal operation parameters.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a noise control method for an air conditioner, a readable storage medium and the air conditioner.
Background
At present, noise of an air conditioner mainly comes from an inner fan, an outer fan and an outer compressor. Generally speaking, the higher the rotating speed of the internal machine fan is, the larger the air volume is, the stronger the heat exchange capacity of the air conditioner is, and correspondingly, the indoor side noise value is also higher. Therefore, in order to ensure the comfort of the user, the whole noise and the heat exchange capacity need to be comprehensively considered. In the existing noise optimization schemes, a user is mostly required to manually input a noise value. The method does not meet the current intelligent requirements, and meanwhile, for a user, the lower the target noise value is, the better the target noise value is, the lower the noise value can cause the air volume and the operating frequency of the air conditioner to be lower, so that the heat exchange quantity is obviously reduced, and even the protection function is triggered to cause the shutdown. Meanwhile, the heat exchange capacity of the air conditioner is sacrificed to a greater extent, a method for reducing the noise value is not preferable, and the overall use experience of a user is also reduced. In addition, the existing scheme has no rotating speed regulating strategy aiming at the air conditioner with upper and lower air outlets, and the phenomenon of mutual disturbance of air flows can occur when the rotating speed of the upper and lower fans of the internal machine is simply reduced, so that the noise and the air volume are negatively optimized. Similarly, the prior art does not show how the air conditioner should operate when receiving the noise and temperature control commands at the same time, and the reliability of the control method and the user operability cannot be guaranteed.
Disclosure of Invention
In view of the above, the invention discloses a noise control method for an air conditioner, a readable storage medium and an air conditioner, which are used for at least solving the problem of higher noise in the operation process of an air conditioner with upper air outlet and lower air outlet.
In order to achieve the above object, the invention adopts the following technical scheme:
the invention discloses a noise control method suitable for an air conditioner with upper air outlet and lower air outlet, which comprises the following steps:
collecting an outer ring noise value of an air conditioner;
calculating a final target noise value in the operation of the air conditioner according to the outer ring noise value, the current operation mode of the air conditioner and the historical temperature regulation action;
acquiring the optimal operation parameters of the air conditioner according to the final target noise value;
and controlling the air conditioner to operate according to the optimal operation parameters.
Further optionally, the collecting the outer ring noise value of the air conditioner includes:
after the air conditioner starts the noise self-adaptive mode, detecting the environment where the air conditioner is located by taking preset time as a period and acquiring environment noise;
and calculating to obtain the average value of the outer ring noise in the period according to the environment noise.
Further optionally, the calculating a final target noise value according to the outer ring noise value, the current operation mode of the air conditioner and the historical temperature adjustment action includes:
the air conditioner records the temperature adjusting action of the air conditioner in the running process;
detecting the current operation mode of the air conditioner;
and obtaining a final target noise value according to the average value of the outer ring noise, the current running mode and the temperature regulation action.
Further optionally, the obtaining a final target noise value according to the outer ring noise average value, the current operation mode, and the temperature adjustment action includes:
determining a preset noise interval in which the average value of the outer ring noise is positioned and outputting an initial target noise value according to the preset noise interval;
when the current operation mode of the air conditioner is judged to be a refrigeration mode and no temperature regulation action exists in a preset historical time, directly determining an initial target noise value as the final target noise value;
when the current operation mode of the air conditioner is judged to be a refrigeration mode and temperature regulation action exists in preset historical time, if the temperature regulation action is temperature reduction, the final target noise value is equal to an initial target noise value plus a first preset noise difference value; if the temperature adjusting action is temperature adjustment, the final target noise value is equal to an initial target noise value-the first preset noise difference value; wherein the first preset noise difference value is greater than 0;
when the current operation mode of the air conditioner is judged to be a heating mode and no temperature regulation action exists within a preset historical time, directly determining an initial target noise value as the final target noise value;
when the current operation mode of the air conditioner is judged to be a heating mode and a temperature adjusting action is performed within a preset historical time, if the temperature adjusting action is a temperature reduction action, the final target noise value is equal to an initial target noise value-a second preset noise difference value; if the temperature adjusting action is temperature adjustment, the final target noise value is equal to the initial target noise value plus the second preset noise difference value; wherein the second predetermined noise difference value is greater than 0.
Further optionally, the determining a preset noise interval in which the average value of the outer ring noise is located and outputting an initial target noise value according to the preset noise interval includes:
when the average value of the outer ring noise is smaller than a first preset noise value, determining that the initial target noise value is the average value of the outer ring noise-a first preset noise correction value;
when the first preset noise value is smaller than the outer ring noise average value and is not larger than a second preset noise value, determining that the initial target noise value is the outer ring noise average value-a second preset noise correction value;
when the average value of the outer ring noise is larger than the second preset noise value, determining that the initial target noise value is the second preset noise correction value;
wherein the first preset noise correction value > the second preset noise correction value > 0.
Further optionally, the obtaining the optimal operation parameter of the air conditioner according to the final target noise value includes:
and respectively acquiring the optimal upper fan rotating speed, the optimal lower fan rotating speed, the optimal outer fan rotating speed and the optimal compressor frequency of the air conditioner according to the final target noise value.
Further optionally, in the process of obtaining the optimal upper fan rotation speed and the optimal lower fan rotation speed according to the final target noise value, the optimal upper fan rotation speed and the optimal lower fan rotation speed are determined by using a critical point determination method.
Further optionally, when the operation mode of the air conditioner is a refrigeration mode, an air supply mode of lower air inlet and upper air outlet is adopted; and when the operation mode of the air conditioner is a heating mode, an air supply mode of upper air inlet and lower air outlet is adopted.
Further optionally, when the noise adaptive mode is not turned on, the air conditioner executes a corresponding operation program or operates according to default operation parameters in response to the received operation instruction.
A second aspect of the invention discloses a non-transitory computer readable storage medium having stored thereon program instructions which, when executed by one or more processors, are adapted to implement the method of any of the above.
A third aspect of the invention discloses an air conditioner employing a method as described in any one of the above, or having a non-transitory computer readable storage medium as described above.
Has the advantages that:
the invention provides a noise optimization control method by combining the characteristics of an air conditioner with upper and lower air outlets. By the control method, the heat exchange quantity of the air conditioner can be ensured while noise is optimized, and normal operation of the air conditioner and user experience are ensured. Meanwhile, when the user has temperature adjustment input action, the noise optimization control method has a corresponding compatible strategy, the reliability of the control method and the operability of the user are ensured, the human-oriented effect is achieved, and the man-machine interaction is improved.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely exemplary embodiments of the present disclosure, and other drawings may be derived by those skilled in the art without inventive effort.
FIG. 1 illustrates a noise optimization control flow diagram of an embodiment;
FIG. 2 illustrates an adaptive noise optimization control flow diagram of an embodiment;
FIG. 3 illustrates a control logic diagram for an embodiment incorporating a user input tempering action;
FIG. 4 illustrates an upper and lower fan speed coordination control logic diagram of an embodiment;
fig. 5 is a logic relationship diagram of units of the air conditioning system according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The air conditioner noise of air-out is great from top to bottom at present, influences user experience. The invention provides the overall logic of a noise optimization control method, which is determined by matching the rotation speeds of an upper fan and a lower fan of an internal machine of an upper air outlet air conditioner and a lower air outlet air conditioner with the optimization control method, and provides the determination logic of a target noise value and an optimal operation parameter. When the noise self-adaptive function is started, if a user has a temperature adjustment input action, the control method also specifically introduces how to be compatible, and how to ensure the reliability and the man-machine interaction of the control method.
To further illustrate the technical solution of the present invention, the following specific examples are provided as shown in fig. 1 to 5.
Example 1
As shown in fig. 1, in this embodiment, a noise control method suitable for an air conditioner with upper and lower outlets is provided, and the noise control method includes: collecting an outer ring noise value of an air conditioner; calculating a final target noise value in the operation of the air conditioner according to the outer ring noise value, the current operation mode of the air conditioner and the historical temperature regulation action; acquiring the optimal operation parameters of the air conditioner according to the final target noise value; and controlling the air conditioner to operate according to the optimal operation parameters. The outer ring noise value is obtained by measuring the noise of the environment where the air conditioner is located, and includes the noise generated by the fan, the compressor and other devices of the air conditioner and other noise in the environment.
The control method can be suitable for air conditioners with air discharged from the upper part and the lower part, and can be used as a noise self-adaptive function to be introduced into products. In this embodiment, collecting the outer loop noise value of the air conditioner includes: after the air conditioner starts the noise self-adaptive mode, detecting the environment where the air conditioner is located by taking preset time as a period and acquiring environment noise; and calculating to obtain the average value of the outer ring noise in the period according to the environmental noise. As shown in fig. 2, preferably, the outer ring noise value of the air conditioner is continuously detected, and with 10min as a period, the average value of the outer ring noise in the period is calculated, that is, the ambient noise can be detected in real time by using the microphone or collector of the air conditioner itself, the average value of the ambient noise is fed back to the controller every 10min, and the controller adjusts the operation parameters in real time according to the change of the average value, so that the noise optimization strategy is adapted to the use environment.
In some optional manners, calculating the final target noise value according to the outer ring noise value and the current operation mode and the historical temperature adjusting action of the air conditioner comprises: the air conditioner records the temperature adjusting action of the air conditioner in the running process; detecting the current operation mode of the air conditioner; and obtaining a final target noise value according to the average value of the outer ring noise, the current running mode and the temperature regulation action. Specifically, after a user selects to start the noise self-adaptive function, the noise optimization control method starts to be executed, and the microphone or collector of the air conditioner is utilized to collect the whole environmental noise in real time and feed the whole environmental noise back to the controller; after a reasonable target noise value is obtained according to the outer ring noise value, the optimal operation parameters, namely the rotating speed of the inner machine fan, the rotating speed of the outer machine fan and the frequency of the outer machine compressor, are obtained through preset data processing logic. The mode makes optimization improvement aiming at the phenomenon that the upper air blower and the lower air blower of the inner machine of the air conditioner with upper air outlet and lower air outlet can generate mutual disturbance of air flows, and avoids the deterioration of noise and air volume.
In the present embodiment, as shown in fig. 3, the user inputs a control method in the temperature adjustment operation. The user has the input action of adjusting the temperature, shows that it has specific requirements to the air conditioner heat transfer ability, and the noise optimization control method should be compatible with the user's demand of adjusting the temperature this moment, guarantees user experience and feels. Correspondingly, obtaining the final target noise value according to the average value of the outer ring noise, the current running mode and the temperature regulation action comprises the following steps:
determining a preset noise interval in which the average value of the outer ring noise is positioned and outputting an initial target noise value according to the preset noise interval;
when the current operation mode of the air conditioner is judged to be a refrigeration mode and no temperature regulation action exists within the preset historical time, directly determining an initial target noise value as a final target noise value;
when the current operation mode of the air conditioner is judged to be a refrigeration mode and temperature regulation action exists in preset historical time, if the temperature regulation action is temperature reduction, the final target noise value is equal to the initial target noise value plus a first preset noise difference value; if the temperature adjusting action is temperature adjustment, the final target noise value is equal to the initial target noise value-a first preset noise difference value; wherein the first preset noise difference value is greater than 0;
when the current operation mode of the air conditioner is judged to be a heating mode and no temperature regulation action exists within a preset historical time, directly determining an initial target noise value as the final target noise value;
when the current operation mode of the air conditioner is judged to be a heating mode and temperature adjusting action exists in preset historical time, if the temperature adjusting action is temperature lowering, the final target noise value is equal to the initial target noise value-a second preset noise difference value; if the temperature adjusting action is temperature adjustment, the final target noise value is equal to the initial target noise value plus a second preset noise difference value; wherein the second predetermined noise difference value is greater than 0.
In this embodiment, the initial noise target value is used as a link between the environmental noise value and the final noise target value, and is not a single feedback. Preferably, the control method divides the external input noise value into 3 sections according to the size, and the method for calculating the final noise target value in each section is different. If it is higher to gather ambient noise, explain that the user is in the environment that has certain noise, at this moment, the noise of air conditioner itself needn't optimize to minimum, and further optimization can not bring obvious experience for the user and feel, and leaves certain surplus and can guarantee air conditioner heat transfer ability, and the user wholly uses the travelling comfort to promote. Furthermore, the noise value input by the environment is reasonably divided according to the interval, and the final noise target value is obtained according to the operation action of the user. The two-stage hierarchical optimization ensures the reasonability of the final target value.
Specifically, determining a preset noise interval in which the average value of the outer ring noise is located and outputting an initial target noise value according to the preset noise interval includes: when the average value of the outer ring noise is smaller than a first preset noise value, determining that the initial target noise value is the average value of the outer ring noise and a first preset noise correction value; when the first preset noise value is smaller than the outer ring noise average value and is not larger than the second preset noise value, determining that the initial target noise value is the outer ring noise average value-a second preset noise correction value; when the average value of the outer ring noise is larger than a second preset noise value, determining that the initial target noise value is a second preset noise correction value; wherein the first predetermined noise modification value > the second predetermined noise modification value > 0. Preferably, the first predetermined noise value is 25dB, the second predetermined noise value is 40dB, the first predetermined noise correction value is 6dB, and the second predetermined noise correction value is 4 dB.
In this embodiment, obtaining the optimal operating parameter of the air conditioner according to the final target noise value includes: and respectively acquiring the optimal upper fan rotating speed, the optimal lower fan rotating speed, the optimal outer fan rotating speed and the optimal compressor frequency of the air conditioner according to the final target noise value. Based on the control method, the noise can be optimized, and simultaneously, the heat exchange capacity of the air conditioner is ensured, so that the overall use comfort of a user is improved.
For an air conditioner with upper air outlet and lower air outlet, when an upper fan and a lower fan are matched at different rotating speeds, mutual interference of flow fields of the upper fan and the lower fan can occur to form surge, so that the phenomena of negative noise optimization and air volume reduction are caused. In order to avoid the situation, after the air conditioner with upper and lower air outlets receives a noise optimization instruction, the rotating speed of the fan cannot be simply reduced, and the matching value of the rotating speeds of the upper and lower fans needs to be set in advance. Meanwhile, for the air conditioner with upper and lower air outlets, the air inlet fan or the air outlet fan is determined by refrigeration or heating, and the rotating speed of the air outlet fan limits the rotating speed of the air inlet fan. Therefore, the matching of the rotating speed is also divided according to the specific using state. Preferably, in the process of obtaining the optimal upper fan rotating speed and the optimal lower fan rotating speed according to the final target noise value, the optimal upper fan rotating speed and the optimal lower fan rotating speed are determined by a critical point determination method.
In this embodiment, when the operation mode of the air conditioner is the refrigeration mode, an air supply mode of lower air inlet and upper air outlet is adopted; when the operation mode of the air conditioner is a heating mode, an air supply mode of upper air inlet and lower air outlet is adopted. In addition, it should be noted that the air conditioner also has other conventional functions of an air conditioner with upper and lower air outlets, such as a default operation program and an automatic temperature adjustment program. And when the air conditioner does not start the noise self-adaptive mode, the air conditioner responds to the received operation instruction to execute a corresponding operation program or operates according to default operation parameters.
The invention provides a noise optimization control method adaptive to an air conditioner with upper air outlet and lower air outlet, namely noise self-adaptive optimization logic. The air conditioner acquires an appropriate target noise value by collecting the environmental noise value, calculates the optimal operation parameter of the air conditioner through a prestored target function, and operates according to the parameter combination. The noise is optimized, the heat exchange capacity of the air conditioner and the operability of a user are ensured, and the integral use feeling of the user is improved. Meanwhile, the optimization method of the invention makes a specific optimization strategy aiming at the air conditioner with upper and lower air outlets, and the optimization method is more reasonable and specific.
Example 2
In the present embodiment, an air conditioner is provided. The air conditioner includes a controller configured to implement any one of the above noise control methods. After the user starts the noise self-adaptive mode, the air conditioner collects the environmental noise value to obtain the final target noise value, calculates the optimal operation parameter through the pre-stored target function, and operates according to the parameter.
After the user starts the noise self-adaptive mode, the air conditioner calculates the environmental noise value in real time through a microphone or a collector of the air conditioner, feeds back the average value D of the external noise to the controller every 10min, can update the average value D of the external noise at regular time, and can ensure the accuracy of noise optimization.
After receiving the average value D of the environmental noise, the air conditioner controller carries out interval judgment on the average value D in order to optimize the accuracy of the final noise target value and ensure the heat exchange capability of the air conditioner. For example, three intervals are set according to the bearing range of human body to sound and the division of noise value in the relevant standard, D is less than or equal to 25dB, D is more than 25dB and less than or equal to 40dB, and D is more than 40 dB. When the fed-back external noise average value D is less than or equal to 25dB, the external noise is smaller, and the self noise of the air conditioner needs to be optimized to a greater extent to ensure the optimization effect of the noise of the air conditioner. Therefore, the output initial target noise value a-D-6 dB is defined. Similarly, when the average value D of the ambient noise is more than 40dB, the user is indicated to be in a relatively noisy environment, the self noise of the air conditioner is optimized to a large extent and the auditory effect of the user is not improved obviously, and the optimization degree of the self noise of the air conditioner can be reduced at the moment, for example, the initial target noise value A is required to be 40dB, namely, the initial target noise value A is kept near the noise standard limit value, the air conditioner can ensure higher heat exchange capacity, and the overall use comfort of the user is improved.
After the initial target noise value a is obtained, a final target noise value B is determined according to an air conditioner operation mode and whether a user has a temperature adjustment input action. For example, the following steps are carried out: if the first preset noise difference value and the second preset noise difference value are set to be 1dB, the preset historical time length is 30 min.
In the cooling mode, if the user lowers the set temperature within 30min, the final target noise value B becomes a +1 dB. The user will set the temperature to turn down under the refrigeration mode, shows that it has higher requirement to the heat transfer capacity of air conditioner. The fact that the heat exchange capacity is enhanced means that the rotating speed of a motor of the air conditioner and the frequency of a compressor are increased, and the noise value of the air conditioner is increased inevitably, so that the final target noise value needs to be properly increased to adapt to the change of operating parameters such as the rotating speed of the motor. The invention defines B as A +1dB, aims to adapt to the requirement of a user on the heat exchange capacity of the air conditioner, ensures that a noise optimization program does not conflict with the operation action of the user, and simultaneously realizes noise optimization and temperature regulation. The solution provided by the invention ensures the reliability and rationality of the control method. Similarly, in the heating mode, if the user lowers the set temperature within 30min, the final target noise value B becomes a-1 dB. In the heating mode, a user adjusts the set temperature to be low, which indicates that the requirement on the heat exchange capacity of the air conditioner is reduced, so that the rotating speed of a motor of the air conditioner and the frequency of a compressor are reduced to a certain extent, and the noise of the air conditioner is reduced, therefore, the final target noise value B is defined to be A-1 dB. In other words, the control method converts the allowance of the heat exchange capacity into the noise optimization value while being compatible with the input action of the user, namely, the noise self-adaption is realized.
And after the final target noise value B is obtained, calculating optimal operation parameters (including the rotating speed X of the upper fan, the rotating speed Y of the lower fan, the rotating speed Z of the outer fan and the operating frequency H of the compressor) through a target function and a database which are pre-stored in the controller, and performing combined operation according to the parameters. Therefore, the establishment of the objective function and the database is also an important ring.
The rotation speed collocation of the upper fan and the lower fan adopts a critical point determination method. When the air conditioner executes the noise optimization control program, the logical relationship of each unit in the air conditioning system is as shown in fig. 5. For the air conditioner with upper and lower air outlets, the wind fields generated by the upper and lower motors can affect each other, and when noise optimization is carried out, the rotating speeds of the upper and lower fans cannot be simply reduced, and the rotating speed matching of the upper and lower fans needs to be considered so as to avoid negative optimization of noise and air volume. Therefore, the rotating speeds of the upper fan and the lower fan are in a limiting relation, when a target function is set, enough data samples are collected in advance according to different operation modes of the air conditioner, the rotating speed collocation of the upper fan and the lower fan with the optimal noise is found, and a database which can be stored in advance and read is formed for later calling.
In the cooling mode, for an air conditioner with upper and lower air outlets, the upper air outlet is an air outlet, the lower air outlet is an air inlet, and generally speaking, the rotating speed of a fan at the air outlet is greater than that of a fan at the air inlet. When the air conditioner enters the noise self-adaptive mode, the rotating speeds of the upper fan and the lower fan are reduced. The flow field of the air inlet fan with lower rotating speed is easily influenced by the air outlet fan with higher rotating speed, so that the noise is not reduced and increased. As shown in fig. 4, in the cooling mode, the rotation speed of the lower fan (air inlet fan) is a fixed value, and as the rotation speed of the upper fan (air outlet fan) increases, the noise and the air volume gradually increase, and after the rotation speed is higher than a critical point, the flow field of the upper air inlet has an obvious influence on the flow field of the lower air inlet, the flow field inside the air duct is disturbed, the noise of the air conditioner rapidly increases, and the air volume greatly decreases. It can be seen that at the critical point, the air conditioner has relatively low noise and large air volume. Therefore, the critical point of the matching of the rotating speeds of the upper fan and the lower fan is that the noise is self-optimizedThe mode needs a certain point, and meanwhile, the rotating speed critical point is not fixed and is related to the rotating speed of the air outlet fan. Generally, the higher the rotation speed of the air inlet is, the stronger the anti-interference capability is, and the critical point moves backwards correspondingly, that is, the higher the rotation speed of the corresponding air outlet is, so in fig. 4, d is greater than c. The determination of the parameters can be realized by collecting data in advance through experiments, traversing all rotating speed combinations according to the rotating speed adjustable range and the adjusting step of the fan, collecting enough data by taking an attached table 1 as an example, and fitting to obtain the rotating speed determining formats of the upper fan and the lower fan. In the cooling mode, the upper fan (outlet fan) rotation speed x is set manually and is considered as an independent variable, so that the lower fan (inlet fan) rotation speed y is equal to Ax3+Bx2+Cx+D。
In the heating mode, for an air conditioner with upper air outlet and lower air outlet, the upper air inlet is an air inlet, and the lower air inlet is an air outlet. At the moment, the rotating speed of the lower air inlet fan is an independent variable x, and a formula can be obtained by collecting data and fitting through the method.
Attached table 1
And determining the noise and the optimal operation parameters of each execution unit.
Taking refrigeration as an example, after the free rotation speed collocation of an upper fan and a lower fan is determined, the following functions are defined, namely upper fan noise f (x), lower fan noise f (y), outer fan noise f (z) and compressor operation noise f (H). Wherein: x is the upper fan (air outlet fan) speed, y is the lower fan (air inlet fan) speed, z is the outer fan speed, and H is the compressor operating frequency.
1)f(x)＝ax2+bx+c；2)f(y)＝ny2+oy+p；3)f(z)＝qz2+rz+s；4)f(H)＝tH2+uH+v。
Therefore, the final target noise value B ═ alpha f (x) + beta f (y)) + delta f (z)) + vf (H) + k can be set, the optimal operation parameters (x, y, z and H) can be obtained according to the required final target noise value B and a preset target function, and the air conditioner operates according to the parameters, so that the noise is optimized, a certain heat exchange capacity is ensured, and the overall comfort is improved.
Wherein a, b, c, n, o, p, q, r, s, t, u and v are constants and are used for adjusting the weight of each influencing factor according to the analysis result and the final target; alpha, beta, delta, nu and kappa are adjustment coefficients, and the weight of each influence factor can be adjusted according to actual conditions.
For heating, the optimal operating parameters can be determined by the above logic.
The execution strategies are all used for realizing noise optimization, enabling the air conditioner to have higher heat exchange capacity as far as possible, improving user experience, improving reliability and compatibility of the control method and solving the problem of unique fan rotating speed matching of the double-air-port air conditioner in the noise optimization process.
After the air conditioner with upper and lower air outlets is improved, the noise is optimized, meanwhile, a certain heat exchange capacity of the air conditioner is ensured, and the overall comfort of a user is improved; meanwhile, a solution compatible with the temperature regulation action of the user is provided, and the reliability and the man-machine interaction of a noise optimization program are improved; and a method for determining the optimal matching rotating speed of the upper fan and the lower fan is provided according to the characteristics of the air conditioner with the upper air outlet and the lower air outlet.
It should be noted that the numerical values and functional relations mentioned in the present invention are only for illustrating the idea of the present invention, and the central idea is not changed by simply converting the numerical values and functional relations, and they are all within the protection scope. For example, the present invention divides the interval according to the definition of the noise in the national standard, so as to obtain the primary noise target value, and if the interval limit is changed, the concept of determining the primary noise value is not changed, which is all within the protection scope of the present invention.
Furthermore, the present invention also provides a non-transitory computer-readable storage medium having stored thereon program instructions, which when executed by one or more processors, the one or more processors are configured to implement the above-described method. The air conditioner may also use the non-transitory computer readable storage medium described above.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (11)
1. The noise control method suitable for the air conditioner with upper air outlet and lower air outlet is characterized by comprising the following steps of:
collecting an outer ring noise value of an air conditioner;
calculating a final target noise value in the operation of the air conditioner according to the outer ring noise value, the current operation mode of the air conditioner and the historical temperature regulation action;
acquiring the optimal operation parameters of the air conditioner according to the final target noise value;
and controlling the air conditioner to operate according to the optimal operation parameters.
2. The noise control method suitable for the air conditioner with upper and lower air outlets according to claim 1, wherein the collecting the outer ring noise value of the air conditioner comprises:
after the air conditioner starts the noise self-adaptive mode, detecting the environment where the air conditioner is located by taking preset time as a period and acquiring environment noise;
and calculating to obtain the average value of the outer ring noise in the period according to the environment noise.
3. The noise control method suitable for the air conditioner with upper and lower air outlets as claimed in claim 2, wherein the calculating the final target noise value according to the outer ring noise value, the current operation mode of the air conditioner and the historical temperature adjustment action comprises:
the air conditioner records the temperature adjusting action of the air conditioner in the running process;
detecting the current operation mode of the air conditioner;
and obtaining a final target noise value according to the average value of the outer ring noise, the current running mode and the temperature regulation action.
4. The noise control method suitable for the air conditioner with upper and lower air outlets according to claim 3, wherein the obtaining of the final target noise value according to the average value of the outer ring noise, the current operation mode and the temperature adjustment action comprises:
determining a preset noise interval in which the average value of the outer ring noise is positioned and outputting an initial target noise value according to the preset noise interval;
when the current operation mode of the air conditioner is judged to be a refrigeration mode and no temperature regulation action exists in a preset historical time, directly determining an initial target noise value as the final target noise value;
when the current operation mode of the air conditioner is judged to be a refrigeration mode and temperature regulation action exists in preset historical time, if the temperature regulation action is temperature reduction, the final target noise value is equal to an initial target noise value plus a first preset noise difference value; if the temperature adjusting action is temperature adjustment, the final target noise value is equal to an initial target noise value-the first preset noise difference value; wherein the first preset noise difference value is greater than 0;
when the current operation mode of the air conditioner is judged to be a heating mode and no temperature regulation action exists within a preset historical time, directly determining an initial target noise value as the final target noise value;
when the current operation mode of the air conditioner is judged to be a heating mode and a temperature adjusting action is performed within a preset historical time, if the temperature adjusting action is a temperature reduction action, the final target noise value is equal to an initial target noise value-a second preset noise difference value; if the temperature adjusting action is temperature adjustment, the final target noise value is equal to the initial target noise value plus the second preset noise difference value; wherein the second predetermined noise difference value is greater than 0.
5. The noise control method suitable for the air conditioner with upper and lower air outlets of claim 4, wherein the determining a preset noise interval where the average value of the outer ring noise is located and outputting an initial target noise value according to the preset noise interval comprises:
when the average value of the outer ring noise is smaller than a first preset noise value, determining that the initial target noise value is the average value of the outer ring noise-a first preset noise correction value;
when the first preset noise value is smaller than the outer ring noise average value and is not larger than a second preset noise value, determining that the initial target noise value is the outer ring noise average value-a second preset noise correction value;
when the average value of the outer ring noise is larger than the second preset noise value, determining that the initial target noise value is the second preset noise correction value;
wherein the first preset noise correction value > the second preset noise correction value > 0.
6. The noise control method suitable for the air conditioner with upper and lower air outlets according to claim 5, wherein the obtaining the optimal operation parameters of the air conditioner according to the final target noise value comprises:
and respectively acquiring the optimal upper fan rotating speed, the optimal lower fan rotating speed, the optimal outer fan rotating speed and the optimal compressor frequency of the air conditioner according to the final target noise value.
7. The noise control method suitable for the air conditioner with upper and lower outlets according to claim 6, wherein in the process of obtaining the optimal upper fan rotating speed and the optimal lower fan rotating speed according to the final target noise value, the matching of the optimal upper fan rotating speed and the optimal lower fan rotating speed is determined by a critical point determination method.
8. The noise control method suitable for the air conditioner with upper air outlet and lower air outlet as claimed in claim 7, wherein the air conditioner is operated in a cooling mode by adopting an air supply mode of lower air inlet and upper air outlet; and when the operation mode of the air conditioner is a heating mode, an air supply mode of upper air inlet and lower air outlet is adopted.
9. The noise control method suitable for the air conditioner with upper and lower air outlets as claimed in claim 2, wherein when the noise adaptive mode is not turned on, the air conditioner executes a corresponding operation program or operates according to default operation parameters in response to the received operation instruction.
10. A non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are configured to implement the method of any one of claims 1-9.
11. An air conditioner characterized in that it employs the method of any one of claims 1-15 or has the non-transitory computer readable storage medium of claim 10.
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