Fan rotating speed control method, electronic equipment and computer storage medium

Abstract

The invention discloses a fan rotating speed control method, electronic equipment and a computer storage medium. The fan rotating speed control method comprises the following steps that the global noise level and the total power consumption of a fan are obtained; acquiring an environment noise value; and adjusting the fan speed based on a fan speed control strategy according to the environmental noise value and the global noise constraint value. According to the technical scheme, the environment noise value is firstly obtained, then the fan rotating speed is adjusted based on the fan rotating speed control strategy according to the environment noise value and the global noise constraint value, balance of noise control and heat dissipation efficiency is optimized, refined heat management and noise management are achieved, and user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fan control, and particularly to a method for controlling the rotation speed of a fan, an electronic device, and a computer storage medium. Background Art

[0002] The application of new energy vehicles is conducive to alleviating the pressure on energy and the environment, and promoting the optimization of the automotive industrial structure and consumption upgrading. In this general environment, as an important part of the charging infrastructure that interfaces with users, charging piles will inevitably be produced and applied in large quantities. To prevent components from reducing power or being damaged due to overheating, fans are generally used to provide heat dissipation functions, either to exhaust the heat generated inside the device or to draw in cold air from outside the device. The rotation speed and static pressure of the fan determine the air flow rate of the fan. The noise generated when the fan operates is approximately proportional to the fifth root of its rotation speed. The faster the rotation speed, the stronger the heat dissipation ability, but the greater the noise generated. In the prior art, the fan control of DC charging piles is usually adjusted based on a fixed noise threshold. For example, the rotation speed is increased to enhance heat dissipation in a high-noise environment, and the rotation speed is decreased to reduce noise in a low-noise environment. However, the prior art only adjusts the rotation speed according to the ambient noise, without considering the balance between noise and heat dissipation requirements, resulting in poor user experience. Summary of the Invention

[0003] The purpose of the present application is to provide a method for controlling the rotation speed of a fan, an electronic device, and a computer storage medium, optimize the balance between noise control and heat dissipation efficiency, achieve refined thermal management and noise management, and improve user experience.

[0004] To achieve the above object, the technical solution of the present application is realized as follows:

[0005] In a first aspect, the present application provides a method for controlling the rotation speed of a fan, including the following steps:

[0006] Obtain the ambient noise value;

[0007] Based on the ambient noise value and the global noise constraint value, adjust the rotation speed of the fan according to the fan rotation speed control strategy.

[0008] As one of the implementation manners, obtaining the ambient noise includes:

[0009] Based on the noise sensors inside and / or around the charging pile, the ambient noise value is detected in real time.

[0010] As one of the implementation manners, before adjusting the rotation speed of the fan according to the ambient noise value and the global noise constraint value based on the fan rotation speed control strategy, it further includes:

[0011] Obtain the geographical location information of the charging pile and / or the user's noise requirement;

[0012] Obtain the global noise constraint value according to the geographical location information of the charging pile and / or the user's noise requirements.

[0013] As one implementation, adjust the fan speed based on the fan speed control strategy according to the ambient noise value and the global noise constraint value, including:

[0014] When the ambient noise value is greater than the global noise constraint value, adjust the fan speed to the base speed;

[0015] When the ambient noise value is less than or equal to the global noise constraint value, adjust the fan speed in the high-noise-sensitivity area to zero, and / or adjust the fan speed proportionally according to the noise weight coefficients of the fans in each area of the charging pile.

[0016] As one implementation, when the ambient noise value is less than or equal to the global noise constraint value, adjust the fan speed in the high-noise-sensitivity area to zero, and / or adjust the fan speed proportionally according to the noise weight coefficients of the fans in each area of the charging pile, including:

[0017] Divide each area of the charging pile into a high-noise-sensitivity area and a low-noise-sensitivity area;

[0018] Define the noise weight coefficients of the fans in the high-noise-sensitivity area and the low-noise-sensitivity area to adjust the fan speed proportionally according to the noise weight coefficients.

[0019] As one implementation, when the ambient noise value is less than or equal to the global noise constraint value, adjust the fan speed in the high-noise-sensitivity area to zero, and / or adjust the fan speed proportionally according to the noise weight coefficients of the fans in each area of the charging pile, including:

[0020] Obtain the speed correction amount of the fans in each area of the charging pile;

[0021] Adjust the fan speed according to the base speed, speed correction amount and noise weight coefficients of the fans in each area of the charging pile.

[0022] As one implementation, dividing each area of the charging pile into a high-noise-sensitivity area and a low-noise-sensitivity area further includes:

[0023] Arrange low-power fans in the high-noise-sensitivity area to give priority to noise control; and

[0024] Arrange high-power fans in the low-noise-sensitivity area to give priority to ensuring the heat dissipation efficiency.

[0025] As one implementation, it further includes:

[0026] Obtain the ambient temperature, ambient humidity and altitude;

[0027] Adjust the fan speed according to the ambient temperature, ambient humidity and altitude.

[0028] In a second aspect, the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the fan speed control method as in the first aspect are implemented.

[0029] In a third aspect, the present application provides a computer storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the fan speed control method as in the first aspect are implemented.

[0030] A fan speed control method, an electronic device, and a computer storage medium provided by the present application include the following steps: obtaining an environmental noise value; and adjusting the fan speed based on a fan speed control strategy according to the environmental noise value and a global noise constraint value. The technical solution of the present application first obtains the environmental noise value, and then adjusts the fan speed based on the fan speed control strategy according to the environmental noise value and the global noise constraint value, optimizing the balance between noise control and heat dissipation efficiency, achieving refined thermal management and noise management, and improving the user experience. Description of the Drawings

[0031] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic flowchart of a fan speed control method provided by an embodiment of the present application;

[0033] Figure 2 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

[0034] Description of the reference numerals: processor 110, memory 111, network interface 112, bus system 113. Detailed Description of the Embodiments

[0035] The specific embodiments of the present application will be described in detail below in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the description of the present application without creative efforts belong to the scope of protection of the present application.

[0036] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including such element. In addition, components, features, and elements with the same name in different embodiments of this application may have the same meaning or different meanings, and their specific meanings need to be determined based on their explanations in the specific embodiment or further in combination with the context in the specific embodiment.

[0037] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this text, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". Furthermore, as used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B and C". An exception to this definition only occurs when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way.

[0038] It should be understood that although the steps in the flowcharts in the embodiments of this application are shown sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless there is a clear indication in this text, the execution of these steps has no strict order limit and can be executed in other orders. Moreover, at least some of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.

[0039] It should be noted that in this text, step codes such as S101 and S102 are adopted. The purpose is to more clearly and briefly express the corresponding content, and it does not constitute a substantial limitation in terms of sequence. Those skilled in the art may execute S102 first and then S101 during specific implementation, etc., but all of these should be within the protection scope of this application.

[0040] It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0041] See Figure 1 , which is a schematic flowchart of a method for controlling the fan speed provided by an embodiment of this application. As Figure 1 shown, the method for controlling the fan speed of this application includes the following steps:

[0042] Step S101: Obtain the ambient noise value;

[0043] In one embodiment, obtaining the ambient noise includes:

[0044] Based on the noise sensors inside and / or around the charging pile, the ambient noise value is detected in real time.

[0045] Here, the magnitude of the real-time ambient noise value can be detected by arranging noise sensors inside and / or around the charging pile.

[0046] Step S102: Based on the ambient noise value and the global noise constraint value, adjust the fan speed according to the fan speed control strategy.

[0047] Here, by comparing the ambient noise value with the global noise constraint value, the fan speed is dynamically adjusted, optimizing the balance between noise control and heat dissipation efficiency.

[0048] In one embodiment, before adjusting the fan speed based on the ambient noise value and the global noise constraint value according to the fan speed control strategy, it further includes:

[0049] Obtain the geographical location information of the charging pile and / or the user's noise requirement;

[0050] Obtain the global noise constraint value according to the geographical location information of the charging pile and / or the user's noise requirement.

[0051] Here, the global noise constraint value can be dynamically adjusted according to the geographical location information of the charging pile. For example, when the charging pile is located in a noise-sensitive area such as a residential area, the global noise constraint value for this area is set to a low threshold (such as 55 dB); when the charging pile is located in a noise-insensitive area such as a highway service area, the global noise constraint value for this area is set to a high threshold (such as 85 dB). The global noise constraint value can also be dynamically adjusted according to the user's noise requirements. For example, if the user sets the maximum noise acceptance value to 40 dB, then the global noise constraint value is adjusted to 40 dB, or if the maximum ambient noise specified for this area is 50 dB, then the global noise constraint value is adjusted to 50 dB. The global noise constraint value can also be dynamically adjusted based on both the geographical location information of the charging pile and the user's noise requirements. For example, when the charging pile is located in a residential area and the user sets the maximum noise acceptance value to 40 dB, then the global noise constraint value is adjusted to 40 dB, or when the charging pile is located in a highway service area and the user sets the maximum noise acceptance value to 60 dB, then the global noise constraint value is adjusted to 60 dB.

[0052] In one embodiment, based on the ambient noise value and the global noise constraint value, the fan speed is adjusted according to the fan speed control strategy, including:

[0053] When the ambient noise value is greater than the global noise constraint value, the fan speed is adjusted to the base speed;

[0054] When the ambient noise value is less than or equal to the global noise constraint value, the fan speed in the noise highly sensitive area is adjusted to zero, and / or the fan speed is adjusted proportionally according to the noise weight coefficient of each area of the charging pile.

[0055] Here, when the ambient noise value is greater than the global noise constraint value, the base speed of each fan can be obtained through regional PID control as RPM base,i =K p (T i -T target )+K d (dT i / dt), where RPM base,i represents the base speed of the i-th fan, K p and K d represent the proportional and derivative parameters of the PID control, which are dynamically adjusted by region. T i represents the measured temperature of the area corresponding to the i-th fan, and T target represents the target temperature of this area, which can be dynamically set based on the heat dissipation requirements. The base speed of each fan is calculated in real time through the PID algorithm to ensure that the local temperature quickly converges to the target value. Each fan group independently adjusts the speed according to the temperature of its covered area, avoiding global overshoot.

[0056] When the ambient noise value is less than or equal to the global noise constraint value, the noise control is further optimized by turning off the fans in the noise highly sensitive area or reducing the fan speed according to the noise weight coefficient.

[0057] In one embodiment, when the ambient noise value is less than or equal to the global noise constraint value, the fan speed in the noise highly sensitive area is adjusted to zero, and / or the fan speed is adjusted proportionally according to the noise weight coefficient of the fans in each area of the charging pile, including:

[0058] Divide each area of the charging pile into a noise highly sensitive area and a noise low sensitive area;

[0059] Define the noise weight coefficients of the fans in the noise highly sensitive area and the noise low sensitive area to adjust the fan speed proportionally according to the noise weight coefficient.

[0060] Here, the area close to the user operation interface (such as the charging gun plugging and unplugging position) is set as the noise highly sensitive area, and the enclosed area inside the charging pile (such as the power module area) is set as the noise low sensitive area. And define the noise weight coefficients of the fans in each area. For example, Wcharging gun = 0.7, W 显 display screen = 0.4, Wpower module 1 = 0.5, Wpower module 2 = 0.3. Among them, the noise weight coefficients of the fans in different areas in the noise highly sensitive area or the noise low sensitive area can be different.

[0061] In this way, through regional differential control, refined thermal management and noise management are achieved, improving the user experience.

[0062] In one embodiment, when the ambient noise value is less than or equal to the global noise constraint value, the fan speed in the noise highly sensitive area is adjusted to zero, and / or the fan speed is adjusted proportionally according to the noise weight coefficient of the fans in each area of the charging pile, including:

[0063] Obtain the rotation speed correction amount of the fans in each area of the charging pile;

[0064] Adjust the fan speed according to the basic rotation speed, rotation speed correction amount and noise weight coefficient of the fans in each area of the charging pile.

[0065] Specifically, the fan speed can be adjusted through regional PID control, fuzzy logic optimization and dynamic priority management.

[0066] The basic rotation speed of each fan can be obtained through regional PID control as RPM base,i = K p (T i - T target ) + K d (dT i / dt), where RPM base,i represents the basic rotation speed of the i-th fan, Kp , K d represents the proportional and derivative parameters of PID control, which are dynamically adjusted by region. T i represents the measured temperature of the area corresponding to the i-th fan. T target represents the target temperature of this area, which can be dynamically set based on the heat dissipation requirements.

[0067] Based on fuzzy logic, calculate the membership values of the global noise level and the total power consumption of the fans; according to the membership values of the global noise level and the total power consumption of the fans, match the fuzzy rules in the fuzzy logic, and calculate the premise strength of each fuzzy rule; calculate the contribution value of the rotational speed correction amount corresponding to each fuzzy rule according to the premise strength; aggregate the contribution values of the rotational speed correction amounts corresponding to each fuzzy rule to obtain the rotational speed correction amount of the fans in each weight area; calculate the rotational speed correction amount of each fan according to the weight coefficient of each fan and the rotational speed correction amount of the fans in each weight area; superimpose the rotational speed correction amount of each fan on the base rotational speed of each fan to adjust the actual rotational speed of each fan.

[0068] Dynamically adjust the region priority according to temperature overrun or power consumption overrun. The default priority order is that the power module region takes precedence over the charging gun region, and the charging gun region takes precedence over the control board region. And when multiple points are overheated, the priority of the key region is increased, and when the power consumption is overrun, the priority of the secondary region is decreased.

[0069] In one embodiment, each region of the charging pile is divided into a high-noise sensitivity area and a low-noise sensitivity area, and it further includes:

[0070] Arrange low-power fans in the high-noise sensitivity area to give priority to noise control; and

[0071] Arrange high-power fans in the low-noise sensitivity area to give priority to ensuring the heat dissipation efficiency.

[0072] Here, in the high-noise sensitivity area (auxiliary heat dissipation area, such as the control board and charging gun interface area), 2-3 low-noise centrifugal fans can be selected to give priority to noise control; in the low-noise sensitivity area (main heat dissipation area, such as the power module area), 3-4 high-airflow axial fans can be selected to give priority to ensuring the heat dissipation efficiency; in addition, in the environmental interaction area (such as the air inlet dust filter), 1 dust-proof fan that can be reversely purged can be selected.

[0073] In one embodiment, it further includes:

[0074] Obtain the ambient temperature, ambient humidity and altitude;

[0075] Adjust the fan speed according to the ambient temperature, ambient humidity and altitude.

[0076] Here, the higher the environmental temperature and humidity, the lower the heat dissipation efficiency, and the rotation speed needs to be increased for compensation; the higher the altitude, the thinner the air, the lower the heat dissipation efficiency, and the rotation speed needs to be increased to maintain the heat dissipation capacity.

[0077] The fan rotation speed can be dynamically adjusted according to the environmental temperature, environmental humidity, and altitude through a compensation function. The compensation formula is RPM i = RPM base,i + β(T env , H)·Kenv + γ(h)·K alt , where RPM i is the rotation speed correction amount, RPM base,i is the base rotation speed, β(T env , H) is the temperature and humidity compensation function, Kenv is the temperature compensation coefficient (adjusted by region), γ(h) is the altitude compensation function, and K alt is the altitude compensation coefficient (adjusted by region).

[0078] The temperature and humidity compensation function β(T env , H) = 1 + α T ·[(T env - T ref ) / T ref + α H ·(1 - H env / H max ), where α T is the temperature sensitivity coefficient (e.g., 0.2), T env is the environmental temperature, T ref is the reference environmental temperature (e.g., 25 °C), α H is the humidity sensitivity coefficient (e.g., 0.2), H env is the environmental humidity, and H max is the maximum environmental humidity (e.g., 100%).

[0079] The altitude compensation function γ(h) = 1 + [(α h ·h) / 1000], where α h is the altitude sensitivity coefficient and h is the altitude. For example, when the altitude sensitivity coefficient is set to 0.05, it means that for every 1000 m increase in altitude, the rotation speed is compensated by 5%.

[0080] The technical solution of this application first obtains the environmental noise value, and then adjusts the fan rotation speed based on the fan rotation speed control strategy according to the environmental noise value and the global noise constraint value, optimizing the balance between noise control and heat dissipation efficiency, achieving refined thermal management and noise management, and improving the user experience.

[0081] Based on the same inventive concept as the foregoing embodiments, the embodiments of this application provide an electronic device, such as Figure 2As shown, the electronic device includes: a processor 110 and a memory 111 for storing a computer program that can run on the processor 110; wherein, Figure 2 The processor 110 shown in does not refer to the number of processors 110 being one, but only refers to the positional relationship of the processor 110 relative to other components. In practical applications, the number of processors 110 can be one or more; similarly, Figure 2 The memory 111 shown in has the same meaning, that is, it only refers to the positional relationship of the memory 111 relative to other components. In practical applications, the number of memories 111 can be one or more. When the processor 110 is used to run the computer program, the above-mentioned fan speed control method is implemented.

[0082] The electronic device may further include: at least one network interface 112. Each component in the electronic device is coupled together through a bus system 113. It can be understood that the bus system 113 is used to realize the connection and communication between these components. In addition to including a data bus, the bus system 113 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 2 all kinds of buses are labeled as the bus system 113.

[0083] Among them, the memory 111 can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), an electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), a ferromagnetic random access memory (FRAM, ferromagnetic random access memory), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as a static random access memory (SRAM, Static Random Access Memory), a synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), a dynamic random access memory (DRAM, Dynamic Random Access Memory), a synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), a double data rate synchronous dynamic random access memory (DDR SDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), an enhanced synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), a sync link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), a direct rambus random access memory (DRRAM, Direct Rambus Random Access Memory).The memory 111 described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memories.

[0084] The memory 111 in the embodiments of the present application is used to store various types of data to support the operation of the electronic device. Examples of such data include: any computer programs for operating on the electronic device, such as an operating system and application programs; contact data; phone book data; messages; pictures; videos, etc. Among them, the operating system contains various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application programs can include various application programs, such as a Media Player, a Browser, etc., for implementing various application services. Here, the program for implementing the method of the embodiments of the present application can be included in the application programs.

[0085] Based on the same inventive concept as the foregoing embodiments, this embodiment also provides a computer storage medium. A computer program is stored in the computer storage medium. The computer storage medium can be a ferromagnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM), etc.; it can also be various devices including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc. When the computer program stored in the computer storage medium is run by a processor, the above fan speed control method is implemented. For the specific step flow implemented when the computer program is executed by the processor, please refer to Figure 1 the description of the shown embodiments, which will not be repeated here.

[0086] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0087] In this document, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to the listed elements, and may also include other elements not expressly listed.

[0088] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A fan speed control method, characterized in that: The following steps are involved: Get the environmental noise value; The fan speed is adjusted based on a fan speed control strategy according to the environmental noise value and the global noise constraint value.

2. The fan speed control method according to claim 1, characterized in that: The obtaining of environmental noise comprises: The environmental noise value is detected in real time based on noise sensors inside and / or around the charging pile.

3. The fan speed control method according to claim 1, characterized in that: Before adjusting the fan speed based on the fan speed control strategy according to the environmental noise value and the global noise constraint value, the method further includes: Obtaining geographic location information of charging piles and / or user noise requirements; The global noise constraint value is obtained according to the geographical location information of the charging pile and / or the user noise requirement.

4. The fan speed control method according to claim 1 or 3, characterized in that: The adjusting the fan speed based on a fan speed control strategy according to the environmental noise value and the global noise constraint value includes: When the environmental noise value is greater than the global noise constraint value, adjusting the fan speed to a basic speed; When the ambient noise value is less than or equal to the global noise constraint value, the fan speed in the noise-sensitive area is adjusted to zero, and / or the fan speed is adjusted proportionally according to the noise weight coefficient of the fans in each area of ​​the charging pile.

5. The fan speed control method according to claim 4, characterized in that: When the environmental noise value is less than or equal to the global noise constraint value, adjusting the fan speed of the noise-sensitive area to zero, and / or proportionally adjusting the fan speed according to the noise weight coefficient of the fans in each area of ​​the charging pile, includes: Dividing each area of ​​the charging pile into the high noise sensitive area and the low noise sensitive area; The noise weight coefficients of the fans in the high noise sensitivity zone and the low noise sensitivity zone are defined, so as to adjust the fan speeds in proportion according to the noise weight coefficients.

6. The fan speed control method according to claim 4, characterized in that: When the environmental noise value is less than or equal to the global noise constraint value, adjusting the fan speed of the noise-sensitive area to zero, and / or proportionally adjusting the fan speed according to the noise weight coefficient of the fans in each area of ​​the charging pile, includes: Obtaining a speed correction value of fans in each area of ​​the charging pile; The fan speed is adjusted according to the basic speed, speed correction and noise weight coefficient of the fans in each area of ​​the charging pile.

7. The fan speed control method according to claim 5, characterized in that: The step of dividing each area of ​​the charging pile into the high noise sensitive area and the low noise sensitive area further includes: Arranging low-power fans in the noise-sensitive areas to give priority to noise control; and A high-power fan is arranged in the noise-insensitive area to give priority to heat dissipation efficiency.

8. The fan speed control method according to claim 1, characterized in that: Also includes: Get the ambient temperature, ambient humidity and altitude; The fan speed is adjusted according to the ambient temperature, the ambient humidity and the altitude.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the fan speed control method according to any one of claims 1 to 8 are implemented.

10. A computer storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the fan speed control method according to any one of claims 1 to 8 are implemented.

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