Cooling fan airflow regulation methods, systems and devices

Abstract

This application provides a method, system, and apparatus for adjusting the airflow of a cooling fan, relating to the field of cooling fan technology. The method includes: determining the target total power of a target cooling fan; determining the target operating mode of the target cooling fan based on the target total power; determining a corresponding target control strategy based on the target operating mode; and adjusting the airflow of the target cooling fan using the target control strategy. In this way, the cooling fan speed can be automatically adjusted according to the machine's total power; while achieving good heat dissipation, automatically reducing the speed when the machine's operating power is low can also achieve energy saving, extend battery life, and reduce noise.

Description

Technical Field

[0001] This invention relates to the field of cooling fan technology, and more specifically, to a method, system, and device for regulating the airflow of a cooling fan. Background Technology

[0002] Currently, most cooling fans on the market operate at a fixed airflow (speed), typically to meet the machine's maximum heat dissipation requirements. Therefore, even in standby or low-power operation modes, the cooling fan continues to operate at a relatively high airflow (speed). This results in wasted energy, especially when powered by battery, shortening battery life. Furthermore, the high airflow (speed) of the cooling fan also increases noise levels.

[0003] There is another type of device on the market that uses temperature sensors to measure the internal air temperature of the machine to adjust the airflow (speed) of the cooling fan. However, due to the internal structure of the machine, poor air circulation in some areas leads to inconsistent air temperatures in different areas, causing the temperature read by the temperature sensor to not represent the overall internal temperature of the machine. Using multiple temperature sensors would increase hardware costs, make software data processing more complex, and fixing multiple temperature sensors inside the machine would also increase the difficulty of operation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a method, system, and device for adjusting the airflow of a cooling fan, so as to automatically adjust the airflow (speed) of the cooling fan according to the machine's operating mode (total power); while achieving good heat dissipation, automatically reducing the airflow (speed) when the machine's operating power is low can also achieve energy saving (extending battery life) and noise reduction.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0006] In a first aspect, embodiments of this application provide a method for adjusting the airflow of a cooling fan, comprising: determining a target total power of a target cooling fan; determining a target operating mode of the target cooling fan based on the target total power; determining a corresponding target control strategy based on the target operating mode; and adjusting the airflow of the target cooling fan using the target control strategy.

[0007] In one embodiment, determining the target total power of the target cooling fan includes: acquiring the target power of each target functional module in the target cooling fan; and determining the target total power of the target cooling fan based on the target power of each target functional module.

[0008] In one embodiment, determining the target total power of the target cooling fan includes: obtaining the target total current of the target cooling fan; and determining the target total power of the target cooling fan based on the target total current.

[0009] In one embodiment, determining the target operating mode of the target cooling fan based on the target total power includes: determining the target operating mode of the target cooling fan as a first operating mode when the target total power is less than a first threshold; determining the target operating mode of the target cooling fan as a second operating mode when the target total power is between the first threshold and a second threshold; and determining the target operating mode of the target cooling fan as a third operating mode when the target total power is greater than the second threshold.

[0010] In one implementation, the first threshold is determined based on the ratio of the target total power to a first threshold; the second threshold is determined based on the ratio of the target total power to a second threshold.

[0011] In one implementation, determining the corresponding target control strategy based on the target operating mode includes: when the target operating mode is a first operating mode, determining the target control strategy as a first control strategy; the first control strategy is to control the speed of the target cooling fan to 0; when the target operating mode is a second operating mode, determining the target control strategy as a second control strategy; the second control strategy is to control the speed of the target cooling fan according to the target total power; when the target operating mode is a third operating mode, determining the target control strategy as a third control strategy; the third control strategy is to control the speed of the target cooling fan to the maximum speed.

[0012] In one embodiment, adjusting the airflow of the target cooling fan using the target control strategy includes: when the target control strategy is a second control strategy, matching a preset target speed level corresponding to the target total power, and controlling the speed of the target cooling fan to the target speed level of the preset target speed level.

[0013] Secondly, embodiments of this application also provide an airflow adjustment device for a cooling fan, comprising: a first determining module configured to determine a target total power of a target cooling fan; a second determining module configured to determine a target operating mode of the target cooling fan based on the target total power; and a processing module configured to determine a corresponding target control strategy based on the target operating mode, and to adjust the airflow of the target cooling fan using the target control strategy.

[0014] In one embodiment, the first determining module is configured to: obtain the target power of each target functional module in the target cooling fan; and determine the target total power of the target cooling fan based on the target power of each target functional module.

[0015] In one implementation, the first determining module is configured to: acquire the target total current of the target cooling fan; and determine the target total power of the target cooling fan based on the target total current.

[0016] In one embodiment, the second determining module is configured to: determine the target operating mode of the target cooling fan as a first operating mode when the target total power is less than a first threshold; determine the target operating mode of the target cooling fan as a second operating mode when the target total power is between the first threshold and a second threshold; and determine the target operating mode of the target cooling fan as a third operating mode when the target total power is greater than the second threshold.

[0017] In one implementation, the first threshold is determined based on the ratio of the target total power to a first threshold; the second threshold is determined based on the ratio of the target total power to a second threshold.

[0018] In one embodiment, the processing module is configured to: when the target operating mode is a first operating mode, determine the target control strategy as a first control strategy; the first control strategy is to control the speed of the target cooling fan to 0; when the target operating mode is a second operating mode, determine the target control strategy as a second control strategy; the second control strategy is to control the speed of the target cooling fan according to the target total power; when the target operating mode is a third operating mode, determine the target control strategy as a third control strategy; the third control strategy is to control the speed of the target cooling fan to the maximum speed.

[0019] In one embodiment, the processing module is configured to: when the target control strategy is the second control strategy, match the preset target speed level corresponding to the target total power, and control the speed of the target cooling fan to the target speed level of the preset target speed level.

[0020] Thirdly, embodiments of this application also provide an airflow regulation system for a cooling fan, comprising: a fan; at least one fan; the fan being connected to a main control board via a signal isolation circuit; the signal isolation circuit being used to send a rotation control signal from the main control board to the fan, and to send a rotation feedback signal from the fan to the main control board; the main control board and the fan are also connected to a fan power supply.

[0021] Fourthly, this application embodiment also provides an airflow regulation system for a cooling fan, comprising: a fan; at least one fan; the fan being connected to a main control board via a signal isolation circuit; the signal isolation circuit being used to send a rotation speed control signal from the main control board to the fan, and to send a rotation speed feedback signal from the fan to the main control board; the main control board and the fan being connected to a fan power supply; the main control board being connected to the main power supply of the entire machine via an ADC current sampling circuit; the data interface of the ADC current sampling circuit being an I2C / SPI / UART interface.

[0022] Fifthly, embodiments of this application provide a computer device, including: a processor, a storage medium, and a bus. The storage medium stores program instructions executable by the processor. When the computer device is running, the processor communicates with the storage medium via the bus, and the processor executes the program instructions to perform the steps of any of the above methods.

[0023] Sixthly, embodiments of this application provide a non-volatile computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of any of the above methods.

[0024] The beneficial effects of this application are as follows: First, the target total power of the target cooling fan is determined; second, based on the target total power, the target operating mode of the target cooling fan is determined; finally, based on the target operating mode, a corresponding target control strategy is determined, and the airflow of the target cooling fan is adjusted using the target control strategy. In this way, the airflow (speed) of the cooling fan can be automatically adjusted according to the machine's operating mode (total power); while achieving good heat dissipation, automatically reducing the airflow (speed) when the machine's operating power is low can also achieve energy saving (extending battery life) and noise reduction. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A flowchart illustrating a method for adjusting the airflow of a cooling fan, provided in an embodiment of this application;

[0027] Figure 2 A flowchart illustrating a method for adjusting the airflow of a cooling fan, provided in an embodiment of this application;

[0028] Figure 3 A schematic diagram of a hardware circuit in a method for adjusting the airflow of a cooling fan provided in an embodiment of this application;

[0029] Figure 4 A flowchart illustrating a method for adjusting the airflow of a cooling fan, provided in an embodiment of this application;

[0030] Figure 5 A schematic diagram of another hardware circuit in a method for adjusting the airflow of a cooling fan provided in an embodiment of this application;

[0031] Figure 6 A flowchart illustrating a method for adjusting the airflow of a cooling fan, provided in an embodiment of this application;

[0032] Figure 7 A flowchart illustrating a method for adjusting the airflow of a cooling fan, provided in an embodiment of this application;

[0033] Figure 8 A schematic diagram of the airflow regulating device for a cooling fan provided in an embodiment of this application;

[0034] Figure 9 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0035] 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 some embodiments of the present invention, but not all embodiments.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that if the terms "upper", "lower", etc. appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in, it is only for the convenience of describing this application and simplifying the description, and does 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 application.

[0038] Furthermore, the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Additionally, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0040] Figure 1 A flowchart illustrating a method for adjusting the airflow of a cooling fan, as provided in an embodiment of this application; Figure 1 As shown, the method includes:

[0041] Step 110: Determine the target total power of the target cooling fan.

[0042] The target cooling fan is the cooling fan that regulates airflow.

[0043] Target total power, which is the total power of the target cooling fan.

[0044] There are two ways to determine the target total power. The first is to directly obtain the total power; the second is to determine the total power through the total current. Specifically, the first method is as follows: Figure 2 As shown, step 110 above may include steps 210 and 220:

[0045] Step 210: Obtain the target power of each target functional module in the target cooling fan.

[0046] Among them, the target functional module is the functional module of the target cooling fan.

[0047] Target power, which is the power of the target functional module.

[0048] Hardware circuits such as Figure 3 As shown, the hardware calculates and measures the target power of all target functional modules (modules, components, sensors, etc.) of the whole machine.

[0049] The target functional modules include a display screen, a turbine, an audio amplifier, a CO2 module, a SpO2 module, and other modules. Furthermore, different brightness levels of the display screen correspond to different power outputs; different turbine speed levels correspond to different power outputs; different volume levels of the audio amplifier correspond to different power outputs; different operating states of the CO2 module correspond to different power outputs; different operating states of the SpO2 module correspond to different power outputs; and other functional modules also correspond to different power outputs depending on their operating state.

[0050] Step 220: Determine the target total power of the target cooling fan based on the target power of each target functional module.

[0051] Then, by adding up the target power of all the target functional modules, the target total power of the target cooling fan can be obtained.

[0052] The second method is as follows: Figure 4 As shown, step 110 above may include steps 410 and 420:

[0053] Step 410: Obtain the target total current of the target cooling fan.

[0054] The target total current is the total current of the target cooling fan.

[0055] Hardware circuits such as Figure 5 As shown, the hardware obtains the total current of the entire machine through the ADC current sampling circuit, and then obtains the target total current of the target cooling fan.

[0056] In practice, the data interface of the ADC current sampling circuit can be I2C / SPI / UART interface. The ADC current sampling circuit transmits data to the main control board in real time through the data interface, and can directly collect the target total current of the target cooling fan from the main control board.

[0057] Step 420: Determine the target total power of the target cooling fan based on the target total current.

[0058] The target total power of the cooling fan can be obtained by calculating the sampled current (target total current) * supply voltage = total target power of the whole machine.

[0059] Step 120: Determine the target operating mode of the target cooling fan based on the target total power.

[0060] Among them, cooling fans have different working modes, and the number of functional modules they operate may differ depending on the working mode.

[0061] The cooling fan airflow adjustment method provided in this application embodiment generally divides the cooling fan's operating modes into three types: the first is when there are few operating functional modules and natural heat dissipation is possible; the second is when there are many operating functional modules and natural heat dissipation is not possible; and the third is when the total power of the operating functional modules exceeds a certain value, requiring the heat dissipation to be adjusted to the maximum. Specifically, as shown in the example... Figure 6 As shown, step 120 above may include steps 610 to 630:

[0062] Step 610: When the target total power is less than the first threshold, determine the target operating mode of the target cooling fan as the first operating mode.

[0063] The first threshold can be determined by calculation or experiment, and is not limited here.

[0064] Furthermore, the first threshold can be determined based on the ratio of the target total power to the first threshold.

[0065] The first threshold ratio is a preset threshold ratio. Thus, the first threshold can be obtained by multiplying the target total power by the first threshold ratio; specifically, the first threshold is obtained by multiplying the target total power by the first threshold ratio.

[0066] The first working mode is the first situation mentioned above.

[0067] Step 620: When the target total power is between the first threshold and the second threshold, determine the target operating mode of the target cooling fan as the second operating mode.

[0068] The second threshold can also be determined by calculation or experiment, and is not limited here.

[0069] Furthermore, the second threshold can be determined based on the ratio of the target total power to the second threshold.

[0070] The second threshold ratio is a preset threshold ratio. Thus, the second threshold can be obtained by multiplying the target total power by the second threshold ratio; specifically, the second threshold is obtained by multiplying the target total power by the second threshold ratio.

[0071] The second working mode is the second situation mentioned above.

[0072] Step 630: When the target total power is greater than the second threshold, determine the target operating mode of the target cooling fan as the third operating mode.

[0073] The third working mode is the third situation mentioned above.

[0074] Step 130: Based on the target operating mode, determine the corresponding target control strategy, and use the target control strategy to adjust the airflow of the target cooling fan.

[0075] Different operating modes correspond to different control strategies. Under different operating modes, the airflow of the cooling fan is adjusted according to the corresponding control strategy. Specifically, for example... Figure 7 As shown, step 130 above may include steps 710 to 730:

[0076] Step 710: When the target working mode is the first working mode, determine the target control strategy as the first control strategy.

[0077] The first control strategy is to control the speed of the target cooling fan to 0.

[0078] The first working mode is the first situation mentioned above. In this mode, fewer functional modules are running, and the heat can be dissipated naturally. Therefore, the speed of the target cooling fan can be controlled to 0.

[0079] Step 720: When the target working mode is the second working mode, determine the target control strategy as the second control strategy.

[0080] The second control strategy involves controlling the speed of the target cooling fan based on the target total power.

[0081] The second working mode is the second situation mentioned above. In this case, there are more functional modules running, and natural heat dissipation is not possible. It is necessary to adjust the speed of the target cooling fan according to the target total power. Generally, the speed of the target cooling fan increases with the increase of the target total power of the target cooling fan. Specifically, step 720 above may include the following steps:

[0082] When the target control strategy is the second control strategy, the preset target speed level corresponding to the target total power is matched, and the speed of the target cooling fan is controlled to be the target speed under the preset target speed level.

[0083] In practice, firstly, the maximum power of the machine can be measured in advance, and then divided into ten levels from zero to the maximum power, with the maximum power corresponding to 10 levels (or more and more refined levels); secondly, the air volume (rotation speed) required for each power level can be measured in advance and set in the software; finally, the machine will automatically identify the power level based on the actual power detected in a certain mode, and then match the required air volume (rotation speed) to drive the fan to work.

[0084] Step 730: When the target working mode is the third working mode, determine the target control strategy as the third control strategy.

[0085] The third control strategy is to control the speed of the target cooling fan to its maximum speed.

[0086] The third working mode is the third situation mentioned above. In this case, the total power of the running functional modules exceeds a certain value, and the heat dissipation needs to be adjusted to the maximum.

[0087] The cooling fan airflow adjustment method provided in this application first determines the target total power of the target cooling fan; second, based on the target total power, it determines the target operating mode of the target cooling fan; finally, based on the target operating mode, it determines the corresponding target control strategy and uses the target control strategy to adjust the airflow of the target cooling fan. In this way, the cooling fan airflow (speed) can be automatically adjusted according to the machine's operating mode (total power); while achieving good heat dissipation, automatically reducing the airflow (speed) when the machine's operating power is low can also achieve energy saving (extending battery life) and noise reduction.

[0088] After introducing the airflow adjustment method for a cooling fan according to exemplary embodiments of this disclosure, the following will refer to... Figure 3 An exemplary embodiment of the present disclosure will be described, namely, an airflow regulation system 300 for a cooling fan.

[0089] refer to Figure 3 The cooling fan airflow regulation system 300 includes:

[0090] Fan 310; at least one fan 310 is required;

[0091] The fan 310 is connected to the main control board 330 through the signal isolation circuit 320; the signal isolation circuit 320 is used to send the rotation control signal 340 of the main control board 330 to the fan, and send the rotation feedback signal 350 of the fan 310 to the main control board 330.

[0092] The main control board 330 and fan 310 are also connected to a fan power supply 360.

[0093] After introducing an exemplary embodiment of a cooling fan airflow regulation system according to this disclosure, the following will refer to... Figure 5 Another airflow regulation system 500 for a cooling fan according to an exemplary embodiment of the present disclosure will be described.

[0094] refer to Figure 5 The cooling fan airflow regulation system 500 includes:

[0095] Fan 510; at least one fan 510 is required;

[0096] Fan 510 is connected to main control board 530 through signal isolation circuit 520; signal isolation circuit 520 is used to send the rotation control signal 540 of main control board 530 to fan 510 and send the rotation feedback signal 550 of fan 510 to main control board 530.

[0097] The main control board 530 and fan 510 are also connected to a fan power supply 560;

[0098] The main control board 530 is also connected to the main power supply 580 of the whole machine through the ADC current sampling circuit 570; the data interface of the ADC current sampling circuit 570 is I2C / SPI / UART interface.

[0099] After introducing another cooling fan airflow regulation system according to exemplary embodiments of the present disclosure, the following refers to... Figure 8 The airflow regulating device 800 of the cooling fan according to an exemplary embodiment of the present disclosure will be described.

[0100] refer to Figure 8 The cooling fan airflow regulating device 800 includes: a first determining module 810 configured to determine the target total power of the target cooling fan; a second determining module 820 configured to determine the target operating mode of the target cooling fan based on the target total power; and a processing module 830 configured to determine the corresponding target control strategy based on the target operating mode, and to adjust the airflow of the target cooling fan using the target control strategy.

[0101] In one embodiment, the first determining module 810 is configured to: obtain the target power of each target functional module in the target cooling fan; and determine the target total power of the target cooling fan based on the target power of each target functional module.

[0102] In one implementation, the first determining module 810 is configured to: acquire the target total current of the target cooling fan; and determine the target total power of the target cooling fan based on the target total current.

[0103] In one embodiment, the second determining module 820 is configured to: determine the target operating mode of the target cooling fan as a first operating mode when the target total power is less than a first threshold; determine the target operating mode of the target cooling fan as a second operating mode when the target total power is between the first threshold and a second threshold; and determine the target operating mode of the target cooling fan as a third operating mode when the target total power is greater than the second threshold.

[0104] In one implementation, the first threshold is determined based on the ratio of the target total power to the first threshold; the second threshold is determined based on the ratio of the target total power to the second threshold.

[0105] In one embodiment, the processing module 830 is configured to: when the target operating mode is a first operating mode, determine the target control strategy as a first control strategy; the first control strategy is to control the speed of the target cooling fan to 0; when the target operating mode is a second operating mode, determine the target control strategy as a second control strategy; the second control strategy is to control the speed of the target cooling fan according to the target total power; when the target operating mode is a third operating mode, determine the target control strategy as a third control strategy; the third control strategy is to control the speed of the target cooling fan to the maximum speed.

[0106] In one embodiment, the processing module 830 is configured to: when the target control strategy is the second control strategy, match the preset target speed level corresponding to the target total power, and control the speed of the target cooling fan to the target speed level of the preset target speed level.

[0107] The above-described device is used to execute the method provided in the foregoing embodiments, and its implementation principle and technical effect are similar, so they will not be described again here.

[0108] These modules can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), one or more microprocessors, or one or more Field Programmable Gate Arrays (FPGAs). Alternatively, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together as a system-on-a-chip (SOC).

[0109] Figure 9 This is a schematic diagram of a computer device provided in an embodiment of this application. The device can be integrated into a terminal device or a chip of a terminal device. The terminal can be a computing device with data processing capabilities.

[0110] The device includes: processor 901, storage medium 902, and bus 903.

[0111] Storage medium 902 stores program instructions executable by processor 901. When computer device 900 is running, processor 901 communicates with storage medium 902 via bus 903, and processor 901 executes the program instructions to perform the above-described method embodiment. The specific implementation and technical effects are similar and will not be described in detail here.

[0112] Optionally, the present invention also provides a program product, such as a computer-readable storage medium, including a program that, when executed by a processor, is used to perform the above-described method embodiments.

[0113] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0114] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0115] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0116] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods described in the various embodiments of the present 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.

[0117] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for adjusting the airflow of a cooling fan, characterized in that, include: Determine the target total power of the target cooling fan; Based on the target total power, determine the target operating mode of the target cooling fan; Based on the target operating mode, a corresponding target control strategy is determined, and the airflow of the target cooling fan is adjusted using the target control strategy. Determining the target operating mode of the target cooling fan based on the target total power includes: When the target total power is less than the first threshold, the target operating mode of the target cooling fan is determined to be the first operating mode; When the target total power is between the first threshold and the second threshold, the target operating mode of the target cooling fan is determined to be the second operating mode; When the target total power is greater than the second threshold, the target operating mode of the target cooling fan is determined to be the third operating mode; The step of determining the corresponding target control strategy based on the target operating mode includes: When the target operating mode is the first operating mode, the target control strategy is determined to be the first control strategy; the first control strategy is to control the speed of the target cooling fan to 0. When the target operating mode is the second operating mode, the target control strategy is determined to be the second control strategy; the second control strategy is to control the speed of the target cooling fan according to the target total power. When the target operating mode is the third operating mode, the target control strategy is determined to be the third control strategy; the third control strategy is to control the speed of the target cooling fan to the maximum speed.

2. The method according to claim 1, characterized in that, Determining the target total power of the target cooling fan includes: Obtain the target power of each target functional module in the target cooling fan; The target total power of the target cooling fan is determined based on the target power of each target functional module.

3. The method according to claim 1, characterized in that, Determining the target total power of the target cooling fan includes: Obtain the target total current of the target cooling fan; The target total power of the target cooling fan is determined based on the target total current.

4. The method according to claim 1, characterized in that, The first threshold is determined based on the ratio of the target total power to the first threshold; the second threshold is determined based on the ratio of the target total power to the second threshold.

5. The method according to claim 1, characterized in that, The step of adjusting the airflow of the target cooling fan using the target control strategy includes: When the target control strategy is the second control strategy, the preset target speed level corresponding to the target total power is matched, and the speed of the target cooling fan is controlled to be the target speed under the preset target speed level.

6. A cooling fan airflow regulation system, employing the cooling fan airflow regulation method as described in any one of claims 1-5, characterized in that, include: Fan; the fan is at least one; The fan is connected to the main control board via a signal isolation circuit; the signal isolation circuit is used to send the rotation control signal of the main control board to the fan, and to send the rotation feedback signal of the fan to the main control board. The main control board is also connected to the fan power supply.

7. A cooling fan airflow regulation system, employing the cooling fan airflow regulation method as described in any one of claims 1-5, characterized in that, include: Fan; the fan is at least one; The fan is connected to the main control board via a signal isolation circuit; the signal isolation circuit is used to send the rotation control signal of the main control board to the fan, and to send the rotation feedback signal of the fan to the main control board. The main control board is also connected to the fan power supply; The main control board is also connected to the main power supply of the whole machine through an ADC current sampling circuit; the data interface of the ADC current sampling circuit is an I2C / SPI / UART interface.

8. A cooling fan airflow regulating device, employing the cooling fan airflow regulating method as described in any one of claims 1-5, characterized in that, The first determining module is configured to determine the target total power of the target cooling fan; The second determining module is configured to determine the target operating mode of the target cooling fan based on the target total power. The processing module is configured to determine a corresponding target control strategy based on the target operating mode, and to adjust the airflow of the target cooling fan using the target control strategy.

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