Noise control method, device, extractor hood and medium

Abstract

Embodiments of the present application disclose a noise control method, device, range hood and medium. The method comprises: obtaining a current input current of a target range hood, and determining a target rotating speed of a fan system of the target range hood corresponding to the current input current; determining a target air volume corresponding to the target rotating speed, and determining a current noise value corresponding to the target air volume according to a preset air volume-noise curve; and in a case where the current noise value and a limit noise value do not satisfy a preset relationship, adjusting the current input current until the current noise value and the limit noise value satisfy the preset relationship. The embodiments of the present application solve the problem that the noise of the fan system of the range hood is difficult to be constant at the present stage, and the noise is often very large due to the increase of the suction force of the fan system, and can maintain the noise of the fan system of the range hood constant, thereby improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of noise control technology, and in particular to a noise control method, device, range hood, and medium. Background Technology

[0002] Range hoods, also known as kitchen exhaust hoods or cooking hoods, are essential kitchen appliances for families due to their attractive appearance, effective smoke extraction, compatibility with various kitchen furniture styles, and moderate price. As people's living standards improve, more and more users have higher requirements for the performance of range hoods, with high air volume, strong suction, and low noise becoming the main factors consumers consider when purchasing them.

[0003] Currently, it is difficult to keep the noise level of the fan system of a range hood constant. Often, the noise level becomes very high due to the increased suction power of the fan system. How to maintain a constant noise level of the fan system of a range hood and improve the user experience is a key research issue in the industry. Summary of the Invention

[0004] This invention provides a noise control method, device, range hood, and medium to solve the problem that the noise of the fan system of current range hoods is difficult to keep constant, and that the noise often becomes very loud due to the increased suction of the fan system. This invention can maintain the noise of the fan system of the range hood constant and improve the user experience.

[0005] According to one aspect of the present invention, a noise control method is provided, comprising:

[0006] Obtain the current input current of the target range hood and determine the target speed of the fan system of the target range hood corresponding to the current input current;

[0007] Determine the target air volume corresponding to the target speed, and determine the current noise value corresponding to the target air volume based on the preset air volume noise curve;

[0008] If the current noise value does not meet the preset relationship with the limit noise value, the current input current is adjusted until the current noise value meets the preset relationship with the limit noise value.

[0009] In an optional implementation of this embodiment, determining the target rotational speed of the fan system of the target range hood corresponding to the current input current includes:

[0010] The target rotational speed of the fan system of the target range hood is determined based on the current input current, the torque of the fan system, the voltage of the fan system, and the efficiency of the fan system.

[0011] In an optional implementation of this embodiment, the target rotational speed of the fan system of the target range hood is determined based on the following formula:

[0012]

[0013] Where N is the rotational speed of the fan system, T is the torque of the fan system, I is the input current of the fan system, U is the voltage of the fan system, and β is the efficiency of the fan system.

[0014] In one optional implementation of this embodiment, determining the target air volume corresponding to the target rotational speed includes:

[0015] Determine the target air volume based on the relationship between rotation speed and air volume;

[0016] Among them, the rotation speed is positively correlated with the air volume.

[0017] In an optional implementation of this embodiment, the preset airflow noise curve is determined in the following way:

[0018] Multiple airflow nodes and their corresponding noise values ​​were measured under standard conditions.

[0019] The preset airflow noise curve is obtained by fitting each airflow node and the noise value corresponding to each airflow node.

[0020] Accordingly, the current noise value corresponding to the target air volume is determined based on the preset air volume-noise curve, including:

[0021] Determine the target air volume from the preset air volume-noise curve, and determine the current noise value corresponding to the target air volume.

[0022] In an optional implementation of this embodiment, after determining the current noise value corresponding to the target airflow based on a preset airflow-noise curve, the method further includes:

[0023] Determine whether the current noise value and the limit noise value meet the preset relationship.

[0024] In an optional implementation of this embodiment, after determining whether the current noise value and the limit noise value satisfy a preset relationship, the method further includes:

[0025] If the current noise level and the noise limit value meet the preset relationship, the fan system is confirmed to be operating normally, and the noise limit value is displayed in real time.

[0026] The noise limit value is determined by the performance range of each gear of the fan system and user survey data.

[0027] In one optional implementation of this embodiment, when it is determined that the current noise value and the limit noise value do not satisfy a preset relationship, the current input current is adjusted until the current noise value and the limit noise value satisfy the preset relationship, including:

[0028] The reference air volume corresponding to the limit noise value is determined based on the preset air volume noise curve;

[0029] Determine the reference speed corresponding to the reference air volume, and the reference current corresponding to the reference speed;

[0030] The input current is adjusted based on the reference current to obtain the adjusted target current;

[0031] Continue executing the operation of determining the target speed of the fan system of the target range hood corresponding to the target current until it is determined that the current noise value and the limit noise value meet the preset relationship.

[0032] According to another aspect of the present invention, a noise control device is provided, comprising:

[0033] The target speed determination module is used to obtain the current input current of the target range hood and determine the target speed of the fan system of the target range hood corresponding to the current input current.

[0034] The current noise value determination module is used to determine the target air volume corresponding to the target speed, and to determine the current noise value corresponding to the target air volume according to the preset air volume noise curve;

[0035] The current regulation module is used to adjust the current input current when it is determined that the current noise value and the limit noise value do not meet the preset relationship, until the current noise value and the limit noise value meet the preset relationship.

[0036] According to another aspect of the present invention, a range hood is provided, the range hood comprising:

[0037] At least one processor; and

[0038] A memory that is communicatively connected to at least one processor; wherein,

[0039] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the noise control method according to any embodiment of the present invention.

[0040] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to execute and implement the noise control method involved in any embodiment of the present invention.

[0041] The technical solution of this invention obtains the current input current of the target range hood and determines the target speed of the fan system of the target range hood corresponding to the current input current; determines the target air volume corresponding to the target speed, and determines the current noise value corresponding to the target air volume according to a preset air volume-noise curve; when it is determined that the current noise value and the limit noise value do not meet the preset relationship, the current input current is adjusted until the current noise value and the limit noise value meet the preset relationship. This solves the problem that the noise of the fan system of the current range hood is difficult to keep constant, and that the noise is often very loud due to the increase of the suction power of the fan system. It can maintain the constant noise of the fan system of the range hood and improve the user experience.

[0042] It should be understood that the description in this section is not intended to identify key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the embodiments of the present invention. Other features of the embodiments of the present invention will become readily apparent from the following description. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a flowchart of a noise control method provided according to Embodiment 1 of the present invention;

[0045] Figure 2 This is a flowchart of another noise control method provided according to Embodiment 2 of the present invention;

[0046] Figure 3 This is a flowchart of another noise control method provided according to Embodiment 2 of the present invention;

[0047] Figure 4 This is a schematic diagram of the structure of a noise control device according to Embodiment 3 of the present invention;

[0048] Figure 5 This is a schematic diagram of the processing system of a range hood that implements the noise control method of this invention.

[0049] icon:

[0050] 410-Target speed determination module; 420-Current noise determination module; 430-Current regulation module; 11-Processor; 12-ROM; 13-RAM; 14-Bus; 15-I / O interface; 16-Input unit; 17-Output unit; 18-Storage unit; 19-Communication unit. Detailed Implementation

[0051] To enable those skilled in the art to better understand the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0052] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of the embodiments of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0053] Example 1

[0054] Figure 1 This is a flowchart of a noise control method according to Embodiment 1 of the present invention. This embodiment is applicable to situations where the noise of a range hood's fan system needs to be maintained at a constant level. The method can be executed by a noise control device, which can be implemented in hardware and / or software. This noise control device can be configured in electronic devices such as range hoods, computers, servers, or tablet computers. Specifically, refer to... Figure 1 The method specifically includes the following steps:

[0055] Step 110: Obtain the current input current of the target range hood and determine the target speed of the fan system of the target range hood corresponding to the current input current.

[0056] The target range hood can be any range hood, which can be installed in any home kitchen, kitchen appliance laboratory, or restaurant kitchen, etc., and is not limited in this embodiment.

[0057] In an optional implementation of this embodiment, a monitoring device, such as a current monitoring device, can be installed in the target range hood. The input current of the target range hood can be monitored in real time through the monitoring device. It should be noted that the current input current monitored by the monitoring device can be any current value, and this embodiment does not limit it.

[0058] Optionally, in this embodiment, after obtaining the current input current of the target range hood, the target rotation speed of the fan system of the target range hood corresponding to the current input current can be further determined.

[0059] In one optional implementation of this embodiment, the target rotational speed of the fan system of the target range hood can be determined based on the current input current, the torque of the fan system, the voltage of the fan system, and the efficiency of the fan system.

[0060] The torque, voltage, and efficiency of the fan system can be determined from the instruction manual of the target range hood. For example, if the current operating setting of the fan system is medium, the torque, voltage, and efficiency of the fan system corresponding to medium setting can be determined by consulting the instruction manual of the target range hood. This allows for quick and accurate determination of the various parameters of the fan system.

[0061] Optionally, in this embodiment, the target rotational speed of the fan system of the target range hood can be determined based on the following formula:

[0062]

[0063] Where N is the rotational speed of the fan system, i.e. the target rotational speed involved in this embodiment; T is the torque of the fan system; I is the input current of the fan system, i.e. the current input current in this embodiment; U is the voltage of the fan system; and β is the efficiency of the fan system.

[0064] Understandably, based on the above formula, after obtaining the current input current of the target range hood, and by consulting the instruction manual of the target range hood to determine the torque, voltage, and efficiency of the fan system, the target speed of the fan system of the target range hood can be accurately determined.

[0065] Step 120: Determine the target air volume corresponding to the target rotation speed, and determine the current noise value corresponding to the target air volume according to the preset air volume noise curve.

[0066] In an optional implementation of this embodiment, after determining the target rotational speed of the fan system of the target range hood, a target airflow corresponding to the target rotational speed can be further determined based on the determined target rotational speed. Furthermore, the current noise value corresponding to the target airflow can be determined based on a preset airflow-noise curve. It should be noted that the preset airflow-noise curve involved in this embodiment is an "airflow-noise" curve; for example, the horizontal axis of the preset airflow-noise curve represents airflow, and the vertical axis represents noise.

[0067] Optionally, in this embodiment, after determining the target rotation speed of the fan system of the target range hood, the target air volume can be determined according to the relationship between rotation speed and air volume. In this embodiment, rotation speed and air volume are positively correlated, that is, the higher the rotation speed of the fan system, the greater the air volume generated; the lower the rotation speed of the fan system, the smaller the air volume generated.

[0068] In one example of this embodiment, the target air volume corresponding to the target rotational speed can be determined by the following relationship; Where Q is the air volume, V is the average wind speed at the fan outlet, and N is the target rotational speed; in this embodiment, the average wind speed at the fan outlet can be determined by consulting the instruction manual of the target range hood.

[0069] In this embodiment, the target air volume corresponding to the target rotation speed can also be determined by other methods. These methods will not be described in detail here, as they are not intended to limit this embodiment.

[0070] Optionally, in this embodiment, after determining the target air volume corresponding to the target rotation speed, the noise value corresponding to the target air volume in the preset air volume noise curve can be queried, and the noise value can be determined as the current noise value.

[0071] Step 130: If it is determined that the current noise value and the limit noise value do not meet the preset relationship, adjust the current input current until the current noise value and the limit noise value meet the preset relationship.

[0072] The noise limit can be determined by the performance range of each speed setting of the fan system and user survey data.

[0073] In practical implementation, the noise value Y can be divided into 1-10 based on the user's sensitivity to noise, where 1 is the noise level that the user finds most unacceptable, 10 is the noise level that the user finds most acceptable, and 5 is the noise level that the average person finds acceptable. The noise value at each level can be corrected based on its correlation level; for example, Y... 总 Equals 10, Y 实际 In this embodiment, Y can be set to a noise level acceptable to actual users. 实际Setting it to 5 allows for the output of the actual noise limit, i.e., the noise limit value. In this embodiment, the noise limit value can be determined using the following formula:

[0074] S p =[2Y 实际 / Y 总 ]S 档位 ;

[0075] Among them, S P To limit the noise level, S 档位 The noise level refers to the noise value of the range hood at different speed settings. For example, it could be the noise value of the range hood at low speed, high speed, or high-power setting. This embodiment does not limit the specific noise level. It should also be noted that the S mentioned in this embodiment... 档位 The settings are configured at the factory and cannot be changed afterward; therefore, the specific values ​​are not limited in this embodiment.

[0076] In one optional implementation of this embodiment, after determining the current noise value corresponding to the target air volume, it can be further determined whether the current noise value and the limit noise value satisfy a preset relationship. If it is determined that the current noise value and the limit noise value do not satisfy the preset relationship, the current input current can be further adjusted until the current noise value and the limit noise value satisfy the preset relationship.

[0077] Optionally, in this embodiment, if it is determined that the current noise value and the limit noise value do not satisfy a preset relationship, the air volume corresponding to the limit noise can be determined based on a preset air volume noise curve, and the current value corresponding to the air volume can be further determined. The current input current can be adjusted according to the determined current value to obtain the adjusted current input current. Further, the current noise value corresponding to the adjusted current input current can be determined, and the step of determining whether the current noise value and the limit noise value satisfy a preset relationship can continue to be executed until it is determined that the current noise value and the limit noise value satisfy a preset relationship.

[0078] The technical solution of this embodiment obtains the current input current of the range hood and determines the target speed of the range hood's fan system corresponding to the current input current; determines the target air volume corresponding to the target speed, and determines the current noise value corresponding to the target air volume according to a preset air volume-noise curve; if the current noise value and the limit noise value do not meet the preset relationship, the current input current is adjusted until the current noise value and the limit noise value meet the preset relationship. This solves the problem that the noise of the range hood's fan system is difficult to keep constant at present, and that the noise is often very loud due to the increased suction of the fan system. It can maintain the constant noise of the range hood's fan system and improve the user experience.

[0079] Example 2

[0080] Figure 2 This is a flowchart of another noise control method provided according to Embodiment 2 of the present invention. This embodiment is a further refinement of the above-described technical solutions, and the technical solutions in this embodiment can be combined with the various optional solutions in one or more of the above embodiments. Figure 2 As shown, the noise control method may include the following steps:

[0081] Step 210: Obtain the current input current of the target range hood and determine the target speed of the fan system of the target range hood corresponding to the current input current.

[0082] Step 220: Determine the target air volume corresponding to the target rotation speed, and determine the current noise value corresponding to the target air volume according to the preset air volume noise curve.

[0083] Optionally, in this embodiment, the preset airflow noise curve can be determined as follows: multiple airflow nodes are measured under standard conditions, and the noise value corresponding to each airflow node is obtained; the preset airflow noise curve is obtained by fitting each airflow node and the noise value corresponding to each airflow node.

[0084] The standard conditions can be laboratory conditions, such as a temperature of 25 degrees Celsius and a humidity of 50%, but this embodiment does not limit them.

[0085] In one optional implementation of this embodiment, multiple air volume values ​​and corresponding noise values ​​can be measured under the same conditions; furthermore, a preset air volume-noise curve can be plotted based on each air volume value and each noise value.

[0086] Accordingly, in this embodiment, determining the current noise value corresponding to the target air volume based on the preset air volume noise curve may include: determining the target air volume in the preset air volume noise curve and determining the current noise value corresponding to the target air volume.

[0087] For example, you can first determine the point corresponding to the target air volume in the preset air volume noise curve, and read the noise value corresponding to that point, which is the current noise value corresponding to the target air volume.

[0088] Step 230: Determine whether the current noise value and the limit noise value meet the preset relationship.

[0089] The preset relationship can be a size relationship or an inequality relationship; this embodiment does not limit it.

[0090] Optionally, in one example of this embodiment, the preset relationship between the current noise value and the limit noise value can be: current noise value - limit noise value < limit value; wherein, the limit value can be 1dB, 2dB or 3dB, etc., and is not limited in this embodiment.

[0091] Step 231: If the current noise value and the limit noise value meet the preset relationship, determine that the fan system is operating normally and display the limit noise value in real time.

[0092] In one optional implementation of this embodiment, when it is determined that the current noise value and the limit noise value satisfy a preset relationship, that is, when it is determined that the current noise value - the limit noise value < the limit value, it can be determined that the range hood's fan system is operating normally. The limit noise value can be displayed in real time as a constant noise value. This can satisfy the user experience and ensure that the noise value of the fan system remains constant.

[0093] Step 232: If the current noise value and the limit noise value do not meet the preset relationship, adjust the current input current until the current noise value and the limit noise value meet the preset relationship.

[0094] In one optional implementation of this embodiment, when it is determined that the current noise value and the limit noise value do not satisfy a preset relationship, that is, when it is determined that the current noise value - the limit noise value ≥ the limit value, a reference air volume corresponding to the limit noise value can be determined according to a preset air volume-noise curve; a reference speed corresponding to the reference air volume and a reference current corresponding to the reference speed can be determined; the input current can be adjusted according to the reference current to obtain the adjusted target current; the operation of determining the target speed of the fan system of the target range hood corresponding to the target current can continue to be executed until it is determined that the current noise value and the limit noise value satisfy a preset relationship.

[0095] In this embodiment, when the noise level minus the noise limit is greater than or equal to the limit, a reference airflow corresponding to the noise limit can be determined based on a preset airflow-noise curve; a reference rotational speed corresponding to the reference airflow and a reference current corresponding to the reference rotational speed can be determined; the input current can be adjusted based on the reference current to obtain the adjusted target current; the operation of determining the target rotational speed of the range hood's fan system corresponding to the target current can continue until the current noise level and the noise limit satisfy a preset relationship. This can maintain a constant noise level in the range hood's fan system and improve the performance of the range hood.

[0096] To better understand the noise control method involved in the embodiments of the present invention, Figure 3 This is a flowchart of another noise control method provided according to Embodiment 2 of the present invention, see reference. Figure 3 It mainly includes the following steps:

[0097] Step 310: Input the current I1 obtained from monitoring;

[0098] Step 320: Output the rotational speed N1 corresponding to the current I1;

[0099] Step 321: Determine the air volume Q1 corresponding to the rotational speed N1;

[0100] Step 322: Input the air volume Q1 into the preset air volume noise curve;

[0101] Step 330: Output the current noise value S1;

[0102] Step 340: Subtract the limiting noise value S from the current noise value S1. p Is it less than the limit value Limt?

[0103] If so, proceed to step 350;

[0104] If not, proceed to step 360;

[0105] Step 350: Real-time display of the limited noise value S p ;

[0106] Step 360: Limit the noise value S p Input the preset airflow noise curve;

[0107] Step 361, Output and limit noise value S p The corresponding air volume is Q2;

[0108] Step 362: Determine the rotational speed N2 corresponding to the air volume Q2, and the current I2 corresponding to the rotational speed N2;

[0109] Step 363: Adjust the current I1 according to the current I2, that is, modify the value of the current I1 to I2;

[0110] Optionally, the above steps also include:

[0111] Step 300: Determine the noise limit value S based on the performance range of each operating gear and user survey data regarding noise. p ;

[0112] Step 301: The limit value Limt can be set according to the corresponding national standard value.

[0113] In this embodiment, the limit value Limt can be 1dB, 2dB or 3dB, etc., and is not limited thereto in this embodiment.

[0114] Example 3

[0115] Figure 4This is a schematic diagram of a noise control device according to Embodiment 3 of the present invention. Figure 4 As shown, the device includes: a target speed determination module 410, a current noise value determination module 420, and a current adjustment module 430.

[0116] The target speed determination module 410 is used to obtain the current input current of the target range hood and determine the target speed of the fan system of the target range hood corresponding to the current input current.

[0117] The current noise value determination module 420 is used to determine the target air volume corresponding to the target speed and determine the current noise value corresponding to the target air volume according to the preset air volume noise curve;

[0118] The current regulation module 430 is used to adjust the current input current when it is determined that the current noise value and the limit noise value do not meet the preset relationship, until the current noise value and the limit noise value meet the preset relationship.

[0119] In this embodiment, the target speed determination module 410 obtains the current input current of the target range hood and determines the target speed of the fan system of the target range hood corresponding to the current input current; the current noise value determination module 420 determines the target air volume corresponding to the target speed and determines the current noise value corresponding to the target air volume according to the preset air volume-noise curve; and the current adjustment module 430 adjusts the current input current when it is determined that the current noise value and the limit noise value do not meet the preset relationship until the current noise value and the limit noise value meet the preset relationship. This solves the problem that the noise of the fan system of the current range hood is difficult to keep constant, and that the noise is often very loud due to the increased suction of the fan system. It can maintain the noise of the fan system of the range hood constant and improve the user experience.

[0120] In an optional implementation of this embodiment, the target speed determination module 410 is specifically used to determine the target speed of the fan system of the target range hood based on the current input current, the torque of the fan system, the voltage of the fan system, and the efficiency of the fan system.

[0121] In an optional implementation of this embodiment, the target rotation speed determination module 410 determines the target rotation speed of the fan system of the target range hood based on the following formula:

[0122]

[0123] Where N is the rotational speed of the fan system, T is the torque of the fan system, I is the input current of the fan system, U is the voltage of the fan system, and β is the efficiency of the fan system.

[0124] In an optional implementation of this embodiment, the current noise value determination module 420 is specifically used to determine the target air volume based on the relationship between rotation speed and air volume;

[0125] Among them, the rotation speed is positively correlated with the air volume.

[0126] In an optional implementation of this embodiment, the preset airflow noise curve is determined in the following way:

[0127] Multiple airflow nodes and their corresponding noise values ​​were measured under standard conditions.

[0128] The preset airflow noise curve is obtained by fitting each airflow node and the noise value corresponding to each airflow node.

[0129] Correspondingly, the current noise value determination module 420 is also specifically used to determine the target air volume in the preset air volume noise curve and determine the current noise value corresponding to the target air volume.

[0130] In an optional implementation of this embodiment, the noise control device further includes: a determining module, configured to determine whether the current noise value and the limit noise value satisfy a preset relationship;

[0131] If the current noise level and the noise limit value meet the preset relationship, the fan system is confirmed to be operating normally, and the noise limit value is displayed in real time.

[0132] The noise limit value is determined by the performance range of each gear of the fan system and user survey data.

[0133] In an optional implementation of this embodiment, the current adjustment module 430 is specifically used to determine the reference air volume corresponding to the limit noise value according to the preset air volume noise curve.

[0134] Determine the reference speed corresponding to the reference air volume, and the reference current corresponding to the reference speed;

[0135] The input current is adjusted based on the reference current to obtain the adjusted target current;

[0136] Continue executing the operation of determining the target speed of the fan system of the target range hood corresponding to the target current until it is determined that the current noise value and the limit noise value meet the preset relationship.

[0137] The noise control device provided in this embodiment of the invention can execute the noise control method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0138] Example 4

[0139] Figure 5A schematic diagram of the processing system 10 of a range hood, which can be used to implement embodiments of the present invention, is shown. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of the present invention described and / or claimed herein.

[0140] like Figure 5 As shown, the range hood's processing system 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer programs stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the range hood's processing system 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0141] Multiple components in the range hood's processing system 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, optical disk, etc.; and a communication unit 19, such as a network card, modem, wireless transceiver, etc. The communication unit 19 allows the range hood's processing system 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0142] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as noise control methods.

[0143] In some embodiments, the noise control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded into and / or installed on the processing system 10 of the range hood via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the noise control method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the noise control method by any other suitable means (e.g., by means of firmware).

[0144] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0145] Computer programs for implementing the methods of embodiments of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0146] In the context of embodiments of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0147] To provide user interaction, the systems and techniques described herein can be implemented on the processing system of a range hood, which includes: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the range hood's processing system. Other types of devices can also be used to provide user interaction; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0148] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0149] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0150] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of the present invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of the embodiments of the present invention can be achieved, and this document does not impose any restrictions.

[0151] The specific embodiments described above do not constitute a limitation on the scope of protection of the embodiments of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the embodiments of the present invention should be included within the scope of protection of the embodiments of the present invention.

Claims

1. A noise control method, characterized in that, include: Obtain the current input current of the target range hood, and determine the target speed of the fan system of the target range hood based on the current input current, the torque of the fan system, the voltage of the fan system, and the efficiency of the fan system; determine the target speed of the fan system of the target range hood based on the following formula: ； Wherein, N is the rotational speed of the fan system, T is the torque of the fan system, I is the input current of the fan system, U is the voltage of the fan system, and β is the efficiency of the fan system; Determine the target air volume corresponding to the target rotation speed, and determine the current noise value corresponding to the target air volume according to the preset air volume noise curve; If it is determined that the current noise value and the limit noise value do not meet the preset relationship, the current input current is adjusted until the current noise value and the limit noise value meet the preset relationship. Specifically, when it is determined that the current noise value and the limit noise value do not satisfy a preset relationship, the current input current is adjusted until the current noise value and the limit noise value satisfy the preset relationship, including: The reference airflow corresponding to the noise limit value is determined based on the preset airflow-noise curve. Determine the reference rotational speed corresponding to the reference air volume, and the reference current corresponding to the reference rotational speed; The input current is adjusted according to the reference current to obtain the adjusted target current; Continue executing the operation of determining the target rotation speed of the fan system of the target range hood corresponding to the target current until it is determined that the current noise value and the limit noise value meet the preset relationship; The noise limit value is determined by the performance range of each gear of the fan system and user survey data.

2. The method according to claim 1, characterized in that, Determining the target air volume corresponding to the target rotational speed includes: The target air volume is determined based on the relationship between the rotation speed and the air volume. The rotational speed is positively correlated with the air volume.

3. The method according to claim 1, characterized in that, The preset airflow noise curve is determined in the following way: Multiple airflow nodes and the corresponding noise values ​​for each airflow node were measured under standard conditions. The preset airflow noise curve is obtained by fitting each airflow node and the noise value corresponding to each airflow node. Accordingly, determining the current noise value corresponding to the target airflow based on the preset airflow-noise curve includes: The target air volume is determined from the preset air volume-noise curve, and the current noise value corresponding to the target air volume is determined.

4. The method according to claim 1, characterized in that, After determining the current noise value corresponding to the target airflow based on the preset airflow-noise curve, the method further includes: Determine whether the current noise value and the limit noise value satisfy a preset relationship.

5. The method according to claim 4, characterized in that, After determining whether the current noise value and the limit noise value satisfy a preset relationship, the method further includes: If the current noise value and the limit noise value satisfy a preset relationship, the fan system is determined to be operating normally, and the limit noise value is displayed in real time.

6. A noise control device, characterized in that, include: The target speed determination module is used to acquire the current input current of the target range hood, and determine the target speed of the fan system of the target range hood based on the current input current, the torque of the fan system, the voltage of the fan system, and the efficiency of the fan system; the target speed of the fan system of the target range hood is determined based on the following formula: ； Wherein, N is the rotational speed of the fan system, T is the torque of the fan system, I is the input current of the fan system, U is the voltage of the fan system, and β is the efficiency of the fan system; The current noise value determination module is used to determine the target air volume corresponding to the target rotation speed, and to determine the current noise value corresponding to the target air volume according to the preset air volume noise curve; The current regulation module is used to adjust the current input current when it is determined that the current noise value and the limit noise value do not meet the preset relationship, until the current noise value and the limit noise value meet the preset relationship; The current regulation module is specifically used to determine the reference air volume corresponding to the noise limit value based on the preset air volume noise curve. Determine the reference speed corresponding to the reference air volume, and the reference current corresponding to the reference speed; The input current is adjusted based on the reference current to obtain the adjusted target current; Continue executing the operation of determining the target speed of the fan system of the target range hood corresponding to the target current until it is determined that the current noise value and the limit noise value meet the preset relationship; The noise limit value is determined by the performance range of each gear of the fan system and user survey data.

7. A range hood, characterized in that, The range hood includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor to enable the at least one processor to perform the noise control method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the noise control method according to any one of claims 1-5.

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