Fan speed control methods, devices, electronic equipment and computer-readable storage media

Abstract

This invention provides a fan speed control method, device, electronic device, and computer-readable storage medium, applied to a range hood controller, and relating to the field of household appliance technology. The method includes: first, responding to user operation and acquiring the initial speed setting and its adjustment value; then, determining the noise variation range; furthermore, real-time monitoring of the range hood's back pressure, determining the noise correction coefficient corresponding to the back pressure using a preset noise correction coefficient table, and adjusting the noise variation range based on the noise correction coefficient; if the noise variation range is large, dividing it into multiple speed control intervals; adjusting the fan's operating state based on the rotational speed corresponding to the endpoints of the speed control intervals and a preset speed control time; by determining the noise variation range, dividing it, and performing linear speed control within the divided speed control intervals, the overall noise variation during the entire speed control process remains within an acceptable range for the user, improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a fan speed control method, device, electronic device, and computer-readable storage medium. Background Technology

[0002] As people's requirements for the kitchen cooking environment continue to increase, optimizing the working status of range hoods is an urgent problem that enterprises need to solve.

[0003] Existing motor speed control methods often use a constant airflow effect for adjustment, rarely considering the suitability from the user's perspective. During speed adjustment, the noise level fluctuates, affecting the user experience.

[0004] Furthermore, due to differences in the installation and working environment of range hoods, the impact of the working back pressure on the working noise also varies. Existing compensation algorithms are simple and mechanical, and cannot make reasonable adjustments based on specific usage conditions. Although they have a certain compensation effect, the effect is not obvious, resulting in a poor user experience. Summary of the Invention

[0005] The purpose of this invention is to provide a fan speed regulation method, device, electronic device, and computer-readable storage medium. By determining the noise change range corresponding to the change of range hood speed, and dividing the noise change range based on the noise change interval acceptable to the user, linear speed regulation is performed within the divided speed regulation interval, so that the overall noise change during the entire speed regulation process is within the acceptable range for the user, thereby improving the user experience.

[0006] In a first aspect, the present invention provides a fan speed regulation method, applied to a range hood controller, comprising:

[0007] Respond to user actions and generate operation instructions;

[0008] If the operation command is a gear shifting command, obtain the gear position before adjustment and the gear adjustment value;

[0009] Based on the gear position before adjustment and the gear adjustment value, the noise variation range is determined by the preset relationship between the gear position and the noise.

[0010] If the noise variation range is greater than the preset noise adjustment value, the noise variation range is divided into multiple speed adjustment ranges based on the preset segmentation interval;

[0011] Obtain the rotational speed corresponding to the endpoint of the speed regulation range;

[0012] The working state of the fan is adjusted based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

[0013] In some preferred embodiments of the present invention, the relationship between power level and noise includes: a power-airflow relationship table and an airflow-noise relationship table;

[0014] The steps for determining the noise variation range based on the gear position before adjustment and the gear adjustment value, through a preset relationship between the gear position and noise, include:

[0015] Obtain the power value corresponding to the gear and the power change value corresponding to the gear adjustment value;

[0016] The range of airflow variation is determined based on the power value and power change value in the power-airflow relationship table;

[0017] Based on the air volume and noise relationship table, determine the noise value corresponding to the gear before adjustment and the noise change value corresponding to the gear adjustment value.

[0018] The noise variation range is determined based on the noise value and the noise variation value.

[0019] In some preferred embodiments of the present invention, the table relating gear position to noise also includes: a noise correction coefficient table; the correction coefficient table characterizes the relationship between the working back pressure of the range hood and the noise correction coefficient.

[0020] After determining the noise value corresponding to the original gear setting and the noise change value corresponding to the gear setting adjustment based on the airflow variation range in the airflow-noise relationship table, the method further includes:

[0021] Obtain the working back pressure of the range hood;

[0022] Find the noise correction factor corresponding to the working back pressure in the noise correction factor table;

[0023] The noise value and noise variation value are corrected based on the noise correction factor;

[0024] The noise variation range is determined based on the corrected noise value and the noise variation value.

[0025] In some preferred embodiments of the present invention, the method further includes:

[0026] Obtain the second actual noise value of the range hood while it is in operation;

[0027] The noise correction factor table is updated based on the second actual noise value and the theoretical noise value in the table of gear position and noise relationship.

[0028] In some preferred embodiments of the present invention, the step of updating the noise correction coefficient table based on the second actual noise value and the noise value in the gear-noise relationship table includes:

[0029] Calculate the deviation between the second actual noise value and the theoretical noise value;

[0030] If the deviation value is greater than the preset deviation value, the noise correction coefficient table is updated based on the ratio of the second actual noise value to the theoretical noise value.

[0031] In some preferred embodiments of the present invention, the step of adjusting the working state of the fan based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time includes:

[0032] The linear adjustment formula is determined based on the rotational speed at the endpoint of the speed regulation interval and the preset speed regulation time.

[0033] The operating state of the fan is adjusted based on a linear adjustment formula.

[0034] In some preferred embodiments of the present invention, the method further includes:

[0035] Obtain the first actual noise value of the range hood while it is in operation;

[0036] The linear adjustment formula is adjusted based on the first actual noise value;

[0037] The operating state of the fan is adjusted based on the modified linear control formula.

[0038] In a second aspect, the present invention provides a fan speed regulating device, applied to a range hood controller, comprising:

[0039] The instruction generation module is used to generate operation instructions in response to user operations;

[0040] The gear position determination module is used to obtain the gear position before adjustment and the gear adjustment value if the operation command is a gear shifting command;

[0041] The noise variation range determination module is used to determine the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset relationship between gear position and noise.

[0042] The speed regulation range determination module is used to divide the noise change range into multiple speed regulation ranges based on the preset segmentation range if the noise change range is greater than the preset noise adjustment value.

[0043] The speed determination module is used to obtain the speed corresponding to the endpoint of the speed regulation range;

[0044] The operating status adjustment module is used to adjust the operating status of the fan based on the speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

[0045] Thirdly, the present invention provides an electronic device including a processor and a memory, the memory storing computer-executable instructions that can be executed by the processor, the processor executing the computer-executable instructions to implement the fan speed regulation method of the first aspect described above.

[0046] Fourthly, the present invention provides a computer-readable storage medium storing computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement the fan speed control method of the first aspect described above.

[0047] This invention brings the following beneficial effects:

[0048] This invention provides a fan speed regulation method, device, electronic device, and computer-readable storage medium, applied to a range hood controller. The method includes: responding to a user operation and generating an operation command; if the operation command is a gear switching command, obtaining the gear position before adjustment and the gear adjustment value; determining the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset gear-noise relationship; if the noise variation range is greater than a preset noise adjustment value, dividing the noise variation range into multiple speed regulation intervals based on a preset segmentation interval; obtaining the rotational speed corresponding to the endpoint of the speed regulation interval; adjusting the fan's operating state based on the rotational speed corresponding to the endpoint of the speed regulation interval and a preset speed regulation time; by determining the noise variation range corresponding to the range hood gear position change and dividing the noise variation range based on a noise variation range acceptable to the user, performing linear speed regulation within the segmented speed regulation intervals, ensuring that the overall noise variation during the entire speed regulation process remains within the user's acceptable range, thus improving the user experience. Attached Figure Description

[0049] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0050] Figure 1 A flowchart of a fan speed regulation method provided by the present invention;

[0051] Figure 2 A graph showing the relationship between air volume and noise provided in an embodiment of the present invention;

[0052] Figure 3 A flowchart of another fan speed regulation method provided by the present invention;

[0053] Figure 4 This is a schematic diagram of a fan speed regulating device provided in an embodiment of the present invention;

[0054] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0055] Icons: 310 - Instruction generation module; 320 - Gear determination module; 330 - Noise variation range determination module; 340 - Speed ​​regulation range determination module; 350 - Speed ​​determination module; 360 - Working status adjustment module; 400 - Memory; 401 - Processor; 402 - Bus; 403 - Communication interface. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0058] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0059] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0060] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0061] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0063] Example 1

[0064] This invention provides a fan speed control method, applied to a range hood controller. See [link to relevant documentation]. Figure 1 The flowchart shown below illustrates a fan speed regulation method provided by the present invention, which includes:

[0065] Step S102, Begin.

[0066] Specifically, the range hood controller keeps the range hood fan running at a stable speed while waiting for an operation signal.

[0067] Step S104: Respond to user operation and generate operation instructions.

[0068] Specifically, the controller receives user operation signals, which can be buttons, gestures, voice control, or even control signals linked with other electrical appliances, such as adjusting the firepower of a gas stove linked with a range hood. Based on the user's operation, the controller generates operation instructions, which may be adjusting the range hood's setting or other instructions, such as turning the machine on or off, switching on or off the lights, or activating voice control.

[0069] Specifically, when a user operates the range hood through its control panel (e.g., pressing different buttons to change the fan speed), the controller detects these operations and generates corresponding operating instructions. These instructions may include increasing the fan speed, decreasing the fan speed, or switching to a specific operating mode.

[0070] Step S106: If the operation command is a gear shifting command, obtain the gear position before adjustment and the gear adjustment value.

[0071] Specifically, if the operation command is determined to be about changing the wind speed level (such as switching from low to medium), the controller needs to know the current wind speed level and the new level to which it will be adjusted. This involves reading the current operating status and calculating the adjustment range.

[0072] Step S108: Based on the gear position before adjustment and the gear adjustment value, determine the noise variation range through the preset gear position and noise relationship.

[0073] Specifically, each wind speed setting corresponds to a noise level. The controller uses a pre-set mapping between the setting and noise level to determine the expected noise variation range at a new wind speed setting. This setting-noise relationship is typically determined in a laboratory setting and can be optimized locally and upgraded via OTA (Over-the-Air Technology) during use.

[0074] Furthermore, in some preferred embodiments of the present invention, the relationship between gear position and noise includes: a power-airflow relationship table and an airflow-noise relationship table; the step of determining the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset gear position-noise relationship includes: obtaining the power value corresponding to the gear position and the power variation value corresponding to the gear adjustment value; determining the airflow variation range based on the power value and the power variation value in the power-airflow relationship table; determining the noise value corresponding to the gear position before adjustment and the noise variation value corresponding to the gear adjustment value in the airflow-noise relationship table based on the airflow variation range; and determining the noise variation range based on the noise value and the noise variation value.

[0075] For details, see Figure 2 The embodiment of the present invention shown provides a graph showing the relationship between airflow and noise. This graph is generated based on measured data from a prototype, where Q represents airflow and N represents noise. The noise value is obtained given that Q is known. Furthermore, the range hood speed is adjusted via rotational speed S, which is adjusted via power W. Therefore, knowing the airflow Q allows for adjusting the input power to regulate the rotational speed, thus achieving adjustment. It is also worth noting that the Q-N curve is a fitted curve, representing the trend of airflow and noise changes.

[0076] First, the controller obtains the current fan speed setting and its corresponding power value through internal sensors and memory. Based on user commands (e.g., switching from low to medium), the controller determines the fan speed setting to be adjusted and the corresponding power change value. Then, using a power-to-airflow table, it finds the power and airflow values ​​corresponding to the new setting. Finally, using an airflow-noise relationship table, the noise variation range is determined based on the new airflow value. There is usually a correlation between airflow and noise; that is, the higher the airflow, the higher the noise.

[0077] Step S110: If the noise variation range is greater than the preset noise adjustment value, the noise variation range is divided into multiple speed adjustment intervals based on the preset segmentation interval.

[0078] Specifically, preset noise levels can be set by the user; alternatively, they can be adjusted based on the user's sensitivity. Typically, user noise sensitivity is determined through preliminary surveys, and the population is divided into three age groups: youth, middle-aged, and elderly, with noise sensitivity increasing progressively. The setting range also changes accordingly. For example, the elderly are more sensitive to changes greater than 2dB, while middle-aged and young adults may be more sensitive to changes greater than 3dB. Therefore, noise levels are set based on these individual differences. Furthermore, gender can also be considered; for instance, men are generally less sensitive to noise than women, which can also be used as a standard for setting noise levels.

[0079] In some preferred embodiments of the present invention, the noise adjustment value can be adjusted each time the range hood is used using facial recognition technology, voice recognition technology, etc. Alternatively, machine learning can be used; for example, after the same person uses the range hood more than a preset number of times consecutively, their physical characteristics can be identified using identity recognition technology to further set the noise adjustment level.

[0080] If the noise variation range is less than or equal to the noise adjustment value, the speed before and after the gear adjustment can be directly obtained, and the fan speed can be linearly adjusted according to the preset adjustment time.

[0081] If the noise variation range is greater than the noise adjustment value, the noise variation range is divided into multiple speed adjustment intervals according to the preset segmentation intervals; the segmentation intervals are smaller than the noise adjustment value.

[0082] For example, if it is necessary to increase the air volume from the low setting of 12 to 16, the noise level can be estimated to be from 58dB to 65dB. Then, by dividing the noise into 1dB segments, 7 speed adjustment ranges are formed.

[0083] Step S112: Obtain the rotational speed corresponding to the endpoint of the speed regulation range.

[0084] Specifically, the speed corresponding to the endpoint of the segmented speed regulation range is found in the preset speed-noise relationship table.

[0085] Step S114: Adjust the working state of the fan based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

[0086] Specifically, the preset speed adjustment time is set relative to the segmented intervals, that is, the time required to adjust a unit interval. For example, in this embodiment of the invention, the speed is adjusted by 1 dB every 4 seconds. That is, it takes 4 seconds to adjust from the speed corresponding to 58 dB to the speed corresponding to 59 dB. There are 7 speed adjustment intervals from 58 dB to 65 dB, and the total time is 28 seconds. The speed can be adjusted by dividing the speed difference corresponding to the endpoints by the speed adjustment time to perform uniform speed or uniform acceleration speed adjustment.

[0087] Step S116, End.

[0088] Specifically, the range hood controller controls the fan to adjust its speed, ensuring that the fan operates stably at the adjusted speed.

[0089] This invention provides a fan speed control method applied to a range hood controller. The method includes: responding to user operation and generating an operation command; if the operation command is a gear switching command, obtaining the gear position before adjustment and the gear adjustment value; determining the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset gear-noise relationship; if the noise variation range is greater than the preset noise adjustment value, dividing the noise variation range into multiple speed control intervals based on a preset segmentation interval; obtaining the rotational speed corresponding to the endpoint of the speed control interval; adjusting the working state of the fan based on the rotational speed corresponding to the endpoint of the speed control interval and a preset speed control time; by determining the noise variation range corresponding to the range hood gear position change and dividing the noise variation range based on the user-acceptable noise variation range, linear speed control is performed within the segmented speed control intervals, so that the overall noise variation during the entire speed control process is within the user-acceptable range, thus improving the user experience.

[0090] Example 2

[0091] Based on the above embodiments, this invention provides another fan speed control method, focusing on noise correction in actual use. The speed control and noise relationship table also includes: a noise correction coefficient table; the correction coefficient table characterizes the relationship between the range hood's operating back pressure and the noise correction coefficient; see [link to documentation]. Figure 3 The flowchart shown in this embodiment of the invention provides another fan speed regulation method, which includes:

[0092] Step S202, Start. The range hood controller controls the range hood fan to run stably at the current speed, waiting for the operation signal.

[0093] Step S204: Respond to user operation and generate operation instructions.

[0094] Step S206: If the operation command is a gear shifting command, obtain the gear position before adjustment and the gear adjustment value.

[0095] Step S208: Based on the gear position before adjustment and the gear adjustment value, determine the noise variation range through the preset gear position and noise relationship.

[0096] Step S210: Obtain the working back pressure of the range hood; find the noise correction coefficient corresponding to the working back pressure in the noise correction coefficient table; correct the noise value and noise change value based on the noise correction coefficient; determine the noise change range based on the corrected noise value and noise change value.

[0097] Specifically, under basic conditions, the initial operating back pressure resistance and noise relationship are generated under strong gear operation. The test method is to change the back pressure value to form the P under back pressure in the operating noise test environment. W Corresponding noise N W It is worth noting that N W The ratio of Pw to N is the data that needs to be corrected. By setting the correction coefficient β, we can obtain the coefficient value β that varies with Pw. During adjustment, the resistance of the common flue can be monitored, and the original curve can be multiplied by the coefficient to obtain the corresponding correction value.

[0098] It should be emphasized that when the range hood is running on the low setting or the high-power setting, the corresponding curve relationship between the initial operating back pressure resistance and noise can also be generated using the same method described above.

[0099] Step S212: If the noise variation range is greater than the preset noise adjustment value, the noise variation range is divided into multiple speed adjustment intervals based on the preset segmentation interval.

[0100] Step S214: Obtain the rotational speed corresponding to the endpoint of the speed regulation range.

[0101] Step S216: Determine the linear adjustment formula based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

[0102] Step S218: Obtain the first actual noise value of the range hood under working conditions.

[0103] Step S220: Adjust the linear adjustment formula based on the first actual noise value.

[0104] Step S222: Adjust the working state of the fan based on the adjusted linear adjustment formula.

[0105] Step S224, End. The range hood controller controls the fan to complete the speed adjustment, and the fan runs stably at the adjusted speed.

[0106] In some preferred embodiments of the present invention, after step S216, steps S226 to S230 are executed, and after step S230, step S210 is executed.

[0107] Step S226: Obtain the second actual noise value of the range hood in its working state.

[0108] Step S228: Calculate the deviation between the second actual noise value and the theoretical noise value.

[0109] Step S230: If the deviation value is greater than the preset deviation value, update the noise correction coefficient table based on the ratio of the second actual noise value to the theoretical noise value.

[0110] Specifically, the first actual noise value and the second actual noise value can be the same value. For cost-saving considerations, a noise detection device can be installed on the range hood and maintained regularly. During the maintenance process, the second actual noise value is collected, and the theoretical deviation value is calculated. If the deviation is greater than the preset deviation value (for example, more than 5%), the ratio of the second actual noise value to the theoretical noise value is calculated, and this ratio is used as the new noise correction coefficient to update the noise correction coefficient table.

[0111] In some preferred embodiments of the present invention, a noise detection device can be installed in the range hood for real-time noise monitoring. If the deviation between the detected first actual noise value and the theoretical value is within a certain range (e.g., within 5%), no correction is made, and the speed can continue to be linearly adjusted according to the theoretical value. If the deviation exceeds a preset value, for example, exceeding 5%, the speed corresponding to the actually measured first actual noise value is linearly adjusted. The number of corrections is recorded during the correction process. If a theoretical noise value corresponds to a first actual noise value that requires correction multiple times consecutively, the noise correction coefficient table can be adjusted based on the multiple first actual noise values. Also, for cost-saving considerations, the noise detection device can be turned on periodically for periodic correction.

[0112] Example 3

[0113] Based on the above embodiments, this invention provides a fan speed control device applied to a range hood controller. (See attached image.) Figure 4 The schematic diagram shown in this embodiment of the invention provides a wind turbine speed control device, which includes:

[0114] The instruction generation module 310 is used to generate operation instructions in response to user operations;

[0115] The gear position determination module 320 is used to obtain the gear position before adjustment and the gear adjustment value if the operation command is a gear shifting command;

[0116] The noise variation range determination module 330 is used to determine the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset relationship between the gear position and the noise.

[0117] The speed regulation range determination module 340 is used to divide the noise change range into multiple speed regulation ranges based on a preset segmentation range if the noise change range is greater than the preset noise adjustment value.

[0118] The speed determination module 350 is used to obtain the speed corresponding to the endpoint of the speed regulation range;

[0119] The working status adjustment module 360 ​​is used to adjust the working status of the fan based on the speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

[0120] Furthermore, in some preferred embodiments of the present invention, the relationship between gear position and noise includes: a power-airflow relationship table and an airflow-noise relationship table; a noise variation range determination module 330 is used to obtain the power value corresponding to the gear position and the power variation value corresponding to the gear position adjustment value; determine the airflow variation range based on the power value and the power variation value in the power-airflow relationship table; determine the noise value corresponding to the gear position before adjustment and the noise variation value corresponding to the gear position adjustment value in the airflow-noise relationship table based on the airflow variation range; and determine the noise variation range based on the noise value and the noise variation value.

[0121] Furthermore, in some preferred embodiments of the present invention, the table relating gear position to noise further includes: a noise correction coefficient table; the correction coefficient table characterizes the relationship between the working back pressure of the range hood and the noise correction coefficient; the device further includes: a noise correction module, used to obtain the working back pressure of the range hood; find the noise correction coefficient corresponding to the working back pressure in the noise correction coefficient table; correct the noise value and noise change value based on the noise correction coefficient; and determine the noise change range based on the corrected noise value and noise change value.

[0122] Furthermore, in some preferred embodiments of the present invention, the device further includes: a correction coefficient adjustment module, used to obtain a second actual noise value under the working state of the range hood; and to update the noise correction coefficient table based on the second actual noise value and the theoretical noise value in the table of relationship between gear and noise.

[0123] Furthermore, in some preferred embodiments of the present invention, the correction coefficient adjustment module is used to calculate the deviation between the second actual noise value and the theoretical noise value; if the deviation value is greater than a preset deviation value, the noise correction coefficient table is updated based on the ratio of the second actual noise value to the theoretical noise value.

[0124] Furthermore, in some preferred embodiments of the present invention, the working state adjustment module 360 ​​is used to determine a linear adjustment formula based on the rotational speed corresponding to the endpoint of the speed regulation interval and a preset speed regulation time; and to adjust the working state of the fan based on the linear adjustment formula.

[0125] Furthermore, in some preferred embodiments of the present invention, the device further includes: a noise adjustment module, used to obtain a first actual noise value of the range hood under operating conditions; adjust the linear adjustment formula based on the first actual noise value; and adjust the operating state of the fan based on the adjusted linear adjustment formula.

[0126] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the fan speed regulating device described above can be referred to the corresponding process in the aforementioned embodiments of the fan speed regulating method, and will not be repeated here.

[0127] Example 4

[0128] This invention also provides an electronic device for operating a fan speed regulation method; see [link to related documentation]. Figure 5 The schematic diagram of an electronic device provided by the embodiment of the present invention shown includes a memory 400 and a processor 401. The memory 400 is used to store one or more computer instructions, which are executed by the processor 401 to implement the above-mentioned fan speed regulation method.

[0129] Furthermore, Figure 5 The electronic device shown also includes a bus 402 and a communication interface 403. The processor 401, the communication interface 403 and the memory 400 are connected via the bus 402.

[0130] The memory 400 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 403 (which can be wired or wireless), such as the Internet, wide area network, local area network, or metropolitan area network. The bus 402 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0131] Processor 401 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 401 or by instructions in software form. Processor 401 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a readily available storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 400, and processor 401 reads information from memory 400 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0132] This invention also provides a computer-readable storage medium storing computer-executable instructions. When these computer-executable instructions are called and executed by a processor, they cause the processor to implement the aforementioned business recommendation method. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0133] The computer program products of the wind turbine speed regulation method, apparatus and electronic equipment provided in the embodiments of the present invention include a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods in the preceding method embodiments. For specific implementation, please refer to the method embodiments, which will not be repeated here.

[0134] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and / or device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0135] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0136] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for regulating the speed of a fan, characterized in that, Applications in range hood controllers include: Respond to user actions and generate operation instructions; If the operation command is a gear shifting command, obtain the gear position before adjustment and the gear adjustment value; Based on the gear position before adjustment and the gear adjustment value, the noise variation range is determined by the preset relationship between gear position and noise. If the noise variation range is greater than the preset noise adjustment value, the noise variation range is divided into multiple speed adjustment intervals based on the preset segmentation interval; Obtain the rotational speed corresponding to the endpoint of the speed regulation range; The working state of the fan is adjusted based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

2. The fan speed regulation method according to claim 1, characterized in that, The relationship between gear settings and noise includes: a power-airflow relationship table and an airflow-noise relationship table; The step of determining the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset relationship between gear position and noise includes: Obtain the power value corresponding to the gear position and the power change value corresponding to the gear adjustment value; The range of airflow variation is determined based on the power value and the power change value in the power-airflow relationship table. Based on the air volume and noise relationship table, determine the noise value corresponding to the gear position before adjustment and the noise change value corresponding to the gear adjustment value. The noise variation range is determined based on the noise value and the noise variation value.

3. The fan speed regulation method according to claim 2, characterized in that, The table showing the relationship between gear position and noise also includes a noise correction coefficient table; the correction coefficient table characterizes the relationship between the working back pressure of the range hood and the noise correction coefficient. After determining the noise value corresponding to the gear position before adjustment and the noise change value corresponding to the gear adjustment value based on the airflow variation range in the airflow-noise relationship table, the method further includes: Obtain the working back pressure of the range hood; Find the noise correction factor corresponding to the working back pressure in the noise correction factor table; The noise value and the noise change value are corrected based on the noise correction coefficient; The noise variation range is determined based on the corrected noise value and the noise variation value.

4. The fan speed regulation method according to claim 3, characterized in that, The method further includes: Obtain the second actual noise value of the range hood under operating conditions; The noise correction coefficient table is updated based on the second actual noise value and the theoretical noise value in the gear and noise relationship table.

5. The fan speed regulation method according to claim 4, characterized in that, The step of updating the noise correction coefficient table based on the second actual noise value and the noise value in the gear position and noise relationship table includes: Calculate the deviation between the second actual noise value and the theoretical noise value; If the deviation value is greater than the preset deviation value, the noise correction coefficient table is updated based on the ratio of the second actual noise value to the theoretical noise value.

6. The fan speed regulation method according to claim 1, characterized in that, The steps for adjusting the operating state of the fan based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time include: The linear adjustment formula is determined based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time. The operating state of the fan is adjusted based on the linear adjustment formula.

7. The fan speed regulation method according to claim 6, characterized in that, The method further includes: Obtain the first actual noise value of the range hood under its working state; The linear adjustment formula is adjusted based on the first actual noise value; The operating state of the fan is adjusted based on the modified linear adjustment formula.

8. A fan speed regulating device, characterized in that, Applications in range hood controllers include: The instruction generation module (310) is used to generate operation instructions in response to user operations; The gear position determination module (320) is used to obtain the gear position before adjustment and the gear position adjustment value if the operation instruction is a gear position switching instruction; The noise variation range determination module (330) is used to determine the noise variation range based on the gear position before adjustment and the gear adjustment value through a preset gear position and noise relationship; The speed regulation range determination module (340) is used to divide the noise change range into multiple speed regulation ranges based on a preset segmentation range if the noise change range is greater than a preset noise adjustment value. The speed determination module (350) is used to obtain the speed corresponding to the endpoint of the speed regulation range; The working status adjustment module (360) is used to adjust the working status of the fan based on the rotational speed corresponding to the endpoint of the speed regulation range and the preset speed regulation time.

9. An electronic device, characterized in that, It includes a processor (401) and a memory (400), the memory storing computer-executable instructions that can be executed by the processor, the processor executing the computer-executable instructions to implement the fan speed regulation method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement the fan speed control method according to any one of claims 1 to 7.

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