Fan control method and system, electronic equipment and computer readable storage medium

Abstract

The invention provides a fan control method and system, electronic equipment and a computer readable storage medium, which are applied to a device with a PWM (Pulse Width Modulation) controller, and the device is used for controlling a plurality of fans in different working areas. The method comprises the steps that multiple fan operation frequencies are preset, and all the fan operation frequencies correspond to different working areas; in response to a fan operation request, the frequency of the PWM controller is adjusted to be a first target frequency, and the first target frequency is one of the multiple fan operation frequencies; and sending the first target frequency to the fans in the plurality of working areas so as to enable the fans in the first target working area corresponding to the first target frequency in the plurality of working areas to operate. The fans in different working areas can operate by changing the frequency, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent fans, and in particular to a fan control method, system, electronic device and computer-readable storage medium. Background Art

[0002] With the development of electronic technology, the functions of electronic equipment are becoming more and more powerful, which requires the use of more integrated electronic devices and faster electronic devices. Although the manufacturing process of electronic devices has been greatly developed and the power consumption of electronic devices is gradually decreasing, electronic devices still generate a lot of heat in electronic devices. Since the operating temperature of various electronic devices has a certain range, if it exceeds this range, the working state of the electronic device will be unstable, and it may even burn the electronic device. Therefore, the heat dissipation of electronic equipment will affect the stability and safety of the electronic equipment. Pulse width modulation (PWM) controlled fans are currently the most commonly used fans. This fan is controlled by the controller by sending PWM signals with different duty cycles. Since the speed of this fan can be flexibly controlled, it can work in a specified state, avoiding the fan always running at full speed, and effectively reducing the power consumption and noise of electronic equipment.

[0003] In the related art, an electronic device includes multiple areas, each of which is provided with a fan. However, it is difficult to implement fan control in different areas. Summary of the invention

[0004] In view of this, the present application provides a fan control method, system, electronic device and computer-readable storage medium, which can improve the user experience by changing the frequency to operate fans in different working areas.

[0005] A first aspect of the present application provides a fan control method, which is applied to a device with a PWM controller, wherein the device is used to control fans in multiple different working areas; the method includes: presetting multiple fan operating frequencies, wherein each fan operating frequency corresponds to a fan in a different working area; in response to a fan operation request, adjusting the frequency of the PWM controller to a first target frequency, wherein the first target frequency is one of the multiple fan operating frequencies; and sending the first target frequency to fans in the multiple working areas to operate the fans in a first target working area corresponding to the first target frequency among the multiple working areas.

[0006] Compared with the related art, the embodiments of the present application have at least the following advantages:

[0007] By presetting multiple fan operating frequencies, and each fan operating frequency corresponds to a different working area, when the fan in the first target working area needs to be operated, the frequency of the PWM controller is adjusted to the first target frequency. Since the first target frequency corresponds to the fan in the first target working area, the fan in the first target working area can be operated. In this way, the fan in different working areas can be operated by changing the frequency, thereby improving the user experience.

[0008] In some possible implementations, the multiple different working areas include a first working area, a second working area, and a third working area; the multiple fan operating frequencies include a first fan operating frequency, a second fan operating frequency, a third fan operating frequency, and a fourth fan operating frequency; the method also includes: adjusting the frequency of the PWM controller to the first fan operating frequency to enable the fan in the first working area to operate; adjusting the frequency of the PWM controller to the second fan operating frequency to enable the fan in the second working area to operate; adjusting the frequency of the PWM controller to the third fan operating frequency to enable the fan in the third working area to operate; adjusting the frequency of the PWM controller to the fourth fan operating frequency to enable the fans in the first working area, the second working area, and the third working area to operate.

[0009] In some possible implementations, the method further includes: presetting multiple fan stop frequencies, wherein each fan stop frequency corresponds to a different working area; in response to a fan stop request, adjusting the frequency of the PWM controller to a second target frequency, wherein the second target frequency is one of the multiple fan stop frequencies; sending the second target frequency to fans within the multiple working areas to stop the fans within the second target working area corresponding to the second target frequency among the multiple working areas.

[0010] In some possible implementations, after sending the first target frequency to the multiple working areas, it also includes: sending a preset query frequency to the fan within the first target working area; receiving a target parameter frequency returned by the fan within the first target working area in response to the preset query frequency, wherein the target parameter frequency is used to characterize the operating parameters of the fan within the first target working area.

[0011] In some possible implementations, the operating parameters include N categories, where N is an integer greater than 1; the number of preset query frequencies is N, and each preset query frequency corresponds to a different type of the operating parameters; receiving the target parameter frequency returned by the fan in the first target working area in response to the preset query frequency includes: receiving the target parameter frequency returned by the fan in the first target working area, the operating parameter represented by the target parameter frequency corresponding to the preset query frequency.

[0012] In some possible implementations, the receiving the target parameter frequency returned by the fan in the first target working area includes: the fan in the first target working area generates a first frequency band according to the category of the operating parameter corresponding to the preset query frequency; the fan in the first target working area generates a second frequency band according to its own operating parameter data under the category; the fan in the first target working area synthesizes the target parameter frequency according to the first frequency band and the second frequency band, and sends the target parameter frequency to the control device.

[0013] In some possible implementations, the categories of the operating parameters include one of the following or any combination thereof: current current, current voltage, current power, company, model, operating time, fault code, current temperature, and program version.

[0014] The second aspect of the present application discloses a fan control system, including a control device and a fan; the control device has a PWM controller for controlling fans in multiple different working areas; the control device is also used to preset multiple fan operating frequencies, wherein each fan operating frequency corresponds to a fan in a different working area; the control device is also used to adjust the frequency of the PWM controller to a first target frequency in response to a fan operation request, wherein the first target frequency is one of the multiple fan operating frequencies; the control device is also used to send the first target frequency to the fans in the multiple working areas; the fan in the first target working area corresponding to the first target frequency among the multiple working areas operates after receiving the first target frequency.

[0015] The third aspect of the present application discloses an electronic device, which includes a processor and a memory, wherein the memory is used to store instructions, and the processor is used to call the instructions in the memory so that the electronic device executes the above-mentioned fan control method.

[0016] A fourth aspect of the present application discloses a computer-readable storage medium, comprising computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the above-mentioned fan control method.

[0017] It can be understood that the fan control system of the second aspect, the electronic device of the third aspect, and the computer-readable storage medium of the fourth aspect provided above all correspond to the method of the first aspect. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of a flow chart of a fan control method provided in an embodiment of the present application.

[0020] Figure 2 This is an application scenario diagram of the fan control method provided in one embodiment of the present application.

[0021] Figure 3 This is another application scenario diagram of the fan control method provided in one embodiment of the present application.

[0022] Figure 4 A schematic diagram of a flow chart of a fan control method provided in an embodiment of the present application.

[0023] Figure 5 A schematic diagram of fan transmission data provided by an embodiment of the present application.

[0024] Figure 6 A frequency diagram of a fan provided in an embodiment of the present application.

[0025] Figure 7 A schematic diagram of the functional modules of a fan control system provided in one embodiment of the present application.

[0026] Figure 8 A schematic diagram of the hardware structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the implementation methods of the present application and the features in the implementation methods can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present application. The described implementations are only part of the implementations of the present application, rather than all the implementations.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0030] It should be further noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0031] In this application, "at least one" means one or more, and "more" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0032] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0033] To facilitate understanding, some illustrations of concepts related to the embodiments of the present application are given by way of example for reference.

[0034] PWM (Pulse Width Modulation) refers to the use of microprocessor digital output to control analog circuits. It is a method of digitally encoding analog signal levels. Digitally controlling analog circuits can significantly reduce system costs and power consumption.

[0035] Please refer to Figure 1 , is a flow chart of a fan control method provided in an embodiment of the present application. The fan control method is applied to a control device having a PWM controller, the control device being used to control fans in a plurality of different working areas, the method comprising the following steps:

[0036] Step 101: Preset a plurality of fan operating frequencies, wherein each fan operating frequency corresponds to a fan in a different working area.

[0037] In some embodiments, the fan operating frequency corresponding to the fan in each working area can be set according to actual needs and is not specifically limited thereto.

[0038] In some embodiments, the number of fan operating frequencies is not specifically limited and can be set according to actual needs.

[0039] In some embodiments, there is no specific limit on the number of working areas corresponding to each fan operating frequency. For example, one fan operating frequency may correspond to a fan in one working area, or one fan operating frequency may correspond to fans in multiple working areas.

[0040] Step 102: In response to a fan operation request, adjusting the frequency of the PWM controller to a first target frequency.

[0041] In some embodiments, if a fan in a certain working area needs to be operated, the fan in the working area sends a fan operation request to the control device. After receiving the fan operation request, the control device adjusts the frequency of the PWM controller to a first target frequency corresponding to the fan in the working area.

[0042] Step 103: Sending a first target frequency to fans in a plurality of working areas, so that fans in a first target working area corresponding to the first target frequency among the plurality of working areas operate.

[0043] In some embodiments, multiple different working areas include a first working area, a second working area, and a third working area; multiple fan operating frequencies include a first fan operating frequency, a second fan operating frequency, a third fan operating frequency, and a fourth fan operating frequency; the method also includes: adjusting the frequency of the PWM controller to the first fan operating frequency to enable the fan in the first working area to operate; adjusting the frequency of the PWM controller to the second fan operating frequency to enable the fan in the second working area to operate; adjusting the frequency of the PWM controller to the third fan operating frequency to enable the fan in the third working area to operate; adjusting the frequency of the PWM controller to the fourth fan operating frequency to enable the fans in the first working area, the second working area, and the third working area to operate.

[0044] For ease of understanding, the following Figure 2 and Figure 3 The fan control method of the present application is specifically described by example:

[0045] like Figure 2 As shown, the operating frequency of the first fan is 50 KHz, the operating frequency of the second fan is 40 KHz, the operating frequency of the third fan is 30 KHz, and the operating frequency of the fourth fan is 62.5 KHz.

[0046] When the frequency of the PWM controller is adjusted to 62.5KHz, the fans in the first working area A, the second working area B and the third working area C all start running; when the frequency of the PWM controller is adjusted to 50KHz, only the fan in the first working area A starts running, and the fans in other working areas do not run; when the frequency of the PWM controller is adjusted to 40KHz, only the fan in the second working area B starts running, and the fans in other working areas do not run; when the frequency of the PWM controller is adjusted to 30KHz, only the fan in the third working area C starts running, and the fans in other working areas do not run.

[0047] In some embodiments, when the frequency of the PWM controller changes, the fan in the previous working area can be set to continue running or to stop running. For example, when the frequency of the PWM controller is adjusted to 50KHz, the fan in the first working area A starts running, and then the frequency of the PWM controller is adjusted to 30KHz to make the fan in the third working area C start running. At this time, the fan in the first working area A can be set to continue running or to stop running.

[0048] In some embodiments, multiple fan stop frequencies can also be preset, wherein each fan stop frequency corresponds to a different working area; in response to a fan stop request, the frequency of the PWM controller is adjusted to a second target frequency, wherein the second target frequency is one of the multiple fan stop frequencies; and the second target frequency is sent to fans in multiple working areas to stop the fans in the second target working area corresponding to the second target frequency in the multiple working areas.

[0049] For example, the fan stop frequency is set to 55KHz, 45KHz and 35KHz, 55KHz corresponds to the fan in the first working area A, 45KHz corresponds to the fan in the second working area B, and 35KHz corresponds to the fan in the third working area C. When the frequency of the PWM controller is adjusted to 55KHz, the fan in the first working area A stops running; when the frequency of the PWM controller is adjusted to 45KHz, the fan in the second working area B stops running; when the frequency of the PWM controller is adjusted to 35KHz, the fan in the third working area C stops running.

[0050] Compared with the related art, the embodiment of the present application has at least the following advantages: by presetting multiple fan operating frequencies, and each fan operating frequency corresponds to a different working area, when the fan in the first target working area needs to be operated, the frequency of the PWM controller is adjusted to the first target frequency, and since the first target frequency corresponds to the fan in the first target working area, the fan in the first target working area can be operated. In this way, the frequency can be changed to operate the fans in different working areas, thereby improving the user experience.

[0051] The second embodiment of the present application relates to a fan control method. This embodiment is a further improvement on the previous embodiment. The main improvement is that in this embodiment, after sending the first target frequency to the multiple working areas, it also includes: sending a preset query frequency to the fans in the first target working area; receiving the target parameter frequency returned by the fans in the first target working area in response to the preset query frequency, and the target parameter frequency is used to characterize the operating parameters of the fans in the first target working area. In this way, the operating parameters of the fans can be accurately known to facilitate the management and maintenance of the fans.

[0052] The specific process of this embodiment is as follows Figure 4 As shown, the following steps are included:

[0053] Step 201: Preset a plurality of fan operating frequencies, wherein each fan operating frequency corresponds to a fan in a different working area.

[0054] Step 202: In response to a fan operation request, adjust the frequency of the PWM controller to a first target frequency.

[0055] Step 203: Send a first target frequency to fans in multiple working areas, so that fans in a first target working area corresponding to the first target frequency among the multiple working areas are operated.

[0056] Steps 201 to 203 of this embodiment are similar to steps 101 to 103 of the aforementioned embodiment, and are not described again here to avoid repetition.

[0057] Step 204: Send a preset query frequency to fans in the first target working area.

[0058] In some embodiments, the frequency of the PWM controller is adjusted to a preset query frequency, which indicates that the preset query frequency is sent to the fan in the first target working area.

[0059] Step 205: Receive a target parameter frequency returned by the fan in the first target working area in response to a preset query frequency, where the target parameter frequency is used to characterize an operating parameter of the fan in the first target working area.

[0060] In some embodiments, the operating parameters include N categories, where N is an integer greater than 1; the number of preset query frequencies is N, and each preset query frequency corresponds to a different type of the operating parameters; the receiving of the target parameter frequency returned by the fan in the first target working area in response to the preset query frequency includes: receiving the target parameter frequency returned by the fan in the first target working area, the operating parameter represented by the target parameter frequency corresponding to the preset query frequency.

[0061] In some embodiments, receiving the target parameter frequency returned by the fan in the first target working area includes: the fan in the first target working area generates a first frequency band according to the category of the operating parameter corresponding to the preset query frequency; the fan in the first target working area generates a second frequency band according to its own operating parameter data under the category; the fan in the first target working area synthesizes the target parameter frequency according to the first frequency band and the second frequency band, and sends the target parameter frequency to the control device.

[0062] In some embodiments, the categories of the operating parameters include one of the following or any combination thereof: current current, current voltage, current power, company, model, operating time, fault code, current temperature, and program version.

[0063] In some embodiments, different categories of operating parameters correspond to different preset query frequencies, and when the control device needs to query the same category of operating parameters for fans in different working areas, the corresponding preset query frequencies are also different.

[0064] For example, the preset query frequencies are set to 12KHz and 22KHz. When the frequency of the PWM controller is adjusted to 12KHz, it represents the query of the current current of the fan in the first working area A. When the frequency of the PWM controller is adjusted to 22KHz, it represents the query of the current current of the fan in the second working area B.

[0065] For ease of understanding, the following Figure 5 and Figure 6 How the fan in this embodiment feeds back its own operating parameters to the control device is specifically described:

[0066] like Figure 5As shown, the operating parameters include 01: current current; 02: current voltage; 03: current power; 04: company; 05: model; 06: running time; 07: fault code; 08: current temperature; 09: program version. Among them, the size of the duty cycle Duty is used to represent different numbers, and Duty is used as follows: 10% = number 0; 15% = number 1; 20% = number 2; 30% = number 3; 40% = number 4; 50% = number 5; 60% = number 6; 70% = number 7; 80% = number 8; 90% = number 9. The starting code Duty = 95%, and the ending code Duty = 5%.

[0067] If you need to query the current current of the fan, then after the start code Duty = 95%, set the Duty = 10% in the tens digit of the item and the Duty = 15% in the units digit of the item, that is, representation 01: current current; assuming the current current is 3A, set the Duty = 10% in the ten thousand digit, the Duty = 10% in the thousands digit, the Duty = 10% in the hundreds digit, the Duty = 10% in the tens digit, and the Duty = 30% in the units digit. In this way, the fan can inform the control device that its current current is 3A.

[0068] from Figure 6 As can be seen, changing the duty cycle does not affect the fan speed reading.

[0069] Compared with the related art, the embodiment of the present application has at least the following advantages: by presetting multiple fan operating frequencies, and each fan operating frequency corresponds to a different working area, when the fan in the first target working area needs to be operated, the frequency of the PWM controller is adjusted to the first target frequency, and since the first target frequency corresponds to the fan in the first target working area, the fan in the first target working area can be operated. In this way, the frequency can be changed to operate the fans in different working areas, thereby improving the user experience.

[0070] Please refer to Figure 7 , is a functional module diagram of a fan control system 100 provided in an embodiment of the present application, the fan control system 100 includes: a control device 1 and a fan 2; the control device 1 has a PWM controller 10, which is used to control fans 2 in multiple different working areas; the control device 1 is also used to preset multiple fan operating frequencies, wherein each fan operating frequency corresponds to fans in different working areas; the control device 1 is also used to adjust the frequency of the PWM controller to a first target frequency in response to a fan operation request, wherein the first target frequency is one of the multiple fan operating frequencies; the control device 1 is also used to send the first target frequency to the fans in the multiple working areas; the fans 2 in the first target working area corresponding to the first target frequency in the multiple working areas operate after receiving the first target frequency.

[0071] Please refer to Figure 8 , is a schematic diagram of the hardware structure of the electronic device 1000 provided in the embodiment of the present application. Figure 8 As shown, the electronic device 1000 may include a processor 1001 and a memory 1002. The memory 1002 is used to store one or more computer programs 1003. The one or more computer programs 1003 are configured to be executed by the processor 1001. The one or more computer programs 1003 include instructions, and the above instructions can be used to implement the above method in the electronic device 1000.

[0072] It is understandable that the structure shown in this embodiment does not constitute a specific limitation on the electronic device 1000. In other embodiments, the electronic device 1000 may include more or fewer components than shown, or combine or separate some components, or arrange the components differently.

[0073] The processor 1001 may include one or more processing units, for example, the processor 1001 may include an application processor (AP), a modem, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0074] The processor 1001 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 1001 is a cache memory. The memory may store instructions or data that the processor 1001 has just used or circulated. If the processor 1001 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 1001, and thus improves the efficiency of the system.

[0075] In some embodiments, the processor 1001 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a SIM interface, and / or a USB interface, etc.

[0076] In some embodiments, memory 1002 may include high-speed random access memory and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0077] This embodiment further provides a computer-readable storage medium, in which computer instructions are stored. When the instructions are executed on an electronic device, the electronic device executes the above-mentioned related method steps to implement the method in the above-mentioned embodiment.

[0078] Among them, the electronic device and computer storage medium provided in this embodiment are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0079] In practical applications, the above functions can be distributed to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0080] In several embodiments provided in the present application, the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are schematic. For example, the division of the modules or units is a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0081] The unit described as a separate component may or may not be physically separated, and the component shown as a unit may be one physical unit or multiple physical units, that is, it may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.

[0082] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0083] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code.

[0084] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A fan control method, characterized in that: Applicable to a control device having a PWM controller, the control device being used to control fans in a plurality of different working areas; The method comprises: Preset a plurality of fan operating frequencies, wherein each fan operating frequency corresponds to a fan in a different working area; In response to a fan operation request, adjusting the frequency of the PWM controller to a first target frequency, wherein the first target frequency is one of the plurality of fan operation frequencies; The first target frequency is sent to fans in the plurality of operating areas, so that fans in a first target operating area corresponding to the first target frequency among the plurality of operating areas are operated.

2. The fan control method according to claim 1, wherein: The plurality of different working areas include a first working area, a second working area and a third working area; The plurality of fan operating frequencies include a first fan operating frequency, a second fan operating frequency, a third fan operating frequency and a fourth fan operating frequency; The method further comprises: Adjusting the frequency of the PWM controller to the first fan operating frequency to operate the fan in the first working area; adjusting the frequency of the PWM controller to the operating frequency of the second fan so as to operate the fan in the second working area; Adjusting the frequency of the PWM controller to the third fan operating frequency to operate the fan in the third working area; The frequency of the PWM controller is adjusted to the fourth fan operating frequency, so that the fans in the first working area, the second working area, and the third working area can operate.

3. The fan control method according to claim 1, wherein: The method further comprises: Preset multiple fan stop frequencies, wherein each fan stop frequency corresponds to a different working area; In response to a fan stop request, adjusting the frequency of the PWM controller to a second target frequency, wherein the second target frequency is one of the plurality of fan stop frequencies; The second target frequency is sent to fans in the multiple working areas, so that fans in second target working areas corresponding to the second target frequency among the multiple working areas stop running.

4. The fan control method according to claim 1, wherein: After sending the first target frequency to the plurality of working areas, the method further includes: Sending a preset query frequency to fans in the first target working area; A target parameter frequency returned by the fan in the first target working area in response to the preset query frequency is received, where the target parameter frequency is used to characterize an operating parameter of the fan in the first target working area.

5. The fan control method according to claim 4, wherein: The operating parameters include N categories, where N is an integer greater than 1; The number of preset query frequencies is N, and each of the preset query frequencies corresponds to a different type of operating parameter; The receiving a target parameter frequency returned by the fan in the first target working area in response to the preset query frequency includes: The target parameter frequency returned by the fan in the first target working area is received, wherein the operating parameter represented by the target parameter frequency corresponds to the preset query frequency.

6. The fan control method according to claim 5, characterized in that: The receiving the target parameter frequency returned by the fan in the first target working area includes: The fans in the first target working area generate a first frequency band according to the category of the operating parameters corresponding to the preset query frequency; the fans in the first target working area generate a second frequency band according to their own operating parameter data under the category; The fan in the first target working area synthesizes the target parameter frequency according to the first frequency band and the second frequency band, and sends the target parameter frequency to the control device.

7. The fan control method according to claim 5, wherein: The categories of the operating parameters include one of the following or any combination thereof: Current current, current voltage, current power, company, model, operating time, fault code, current temperature and program version.

8. A fan control system, characterized in that: include: controls and fans; The control device has a PWM controller for controlling fans in multiple different working areas; The control device is also used to preset a plurality of fan operating frequencies, wherein each fan operating frequency corresponds to a fan in a different working area; The control device is also used for adjusting the frequency of the PWM controller to a first target frequency in response to a fan operation request, wherein the first target frequency is one of the plurality of fan operation frequencies; The control device is also used to send the first target frequency to fans in the multiple working areas; A fan in a first target operating area of ​​the plurality of operating areas corresponding to the first target frequency operates after receiving the first target frequency.

9. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the memory is used to store instructions, and the processor is used to call the instructions in the memory, so that the electronic device executes the fan control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The method comprises computer instructions, and when the computer instructions are executed on an electronic device, the electronic device executes the fan control method according to any one of claims 1 to 7.

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