Air volume adjusting method, system and device of cooling fan

Abstract

The invention provides an air volume adjusting method, system and device for a cooling fan, and relates to the technical field of cooling fans. The method comprises the steps that the target total power of a target cooling fan is determined; determining a target working mode of the target cooling fan according to the target total power; and according to the target working mode, a corresponding target control strategy is determined, and the target control strategy is adopted to adjust the air volume of the target cooling fan. Therefore, the rotating speed of the cooling fan can be automatically adjusted according to the total power of the machine; while a good heat dissipation effect is achieved, the rotating speed is automatically reduced under the condition that the working power of the machine is low, and the effects of saving energy, prolonging the battery life and reducing noise can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation fans, and in particular to a method, system and device for adjusting the air volume of a heat dissipation fan. Background Art

[0002] In the current solutions of products on the market, the cooling fan generally works with a fixed air volume (speed), which is generally fixed to meet the cooling demand of the maximum heat generated by the machine. Therefore, in standby or low power consumption working mode, the cooling fan still works with a large air volume (speed). This leads to a waste of energy, especially in the case of battery power supply, shortening the battery life. In addition, the cooling fan working with a large air volume (speed) also increases the noise.

[0003] There is also a method on the market that uses a temperature sensor to measure the air temperature inside the machine to adjust the air volume (speed) of the cooling fan. However, due to the internal structure of the machine, the air circulation in some areas is poor, resulting in inconsistent air temperatures in different areas, resulting in the temperature read by the temperature sensor not representing the internal temperature of the entire machine. If multiple temperature sensors are used, the hardware cost will increase, the data processing of the software will also be more complicated, and fixing multiple temperature sensors inside the machine will also increase the difficulty of operation. Summary of the invention

[0004] The purpose of the present invention is to provide a method, system and device for regulating the air volume of a cooling fan in response to the above-mentioned deficiencies in the prior art, so as to automatically adjust the air volume (rotation speed) of the cooling fan according to the machine working mode (total power); while achieving a good heat dissipation effect, the air volume (rotation speed) is automatically reduced when the machine working power is low, which can also achieve the effects of energy saving (extending battery life) and reducing noise.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] In a first aspect, an embodiment of the present application provides a method for regulating the air volume 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 using the target control strategy to regulate the air volume of the target cooling fan.

[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 according to the target power of each target functional module.

[0008] In one implementation, determining the target total power of the target cooling fan includes: acquiring a target total current of the target cooling fan; and determining the target total power of the target cooling fan according to 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: when the target total power is less than a first threshold, determining that the target operating mode of the target cooling fan is a first operating mode; when the target total power is between the first threshold and a second threshold, determining that the target operating mode of the target cooling fan is a second operating mode; when the target total power is greater than the second threshold, determining that the target operating mode of the target cooling fan is a third operating mode.

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

[0011] In one embodiment, determining the corresponding target control strategy according to the target operating mode includes: when the target operating mode is the first operating mode, determining the target control strategy as 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, determining the target control strategy as 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, determining the target control strategy as the 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, the target control strategy is used to adjust the air volume of the target cooling fan, including: when the target control strategy is the second control strategy, matching the preset target speed level corresponding to the target total power, and controlling the speed of the target cooling fan to the target speed under the preset target speed level.

[0013] In the second aspect, an embodiment of the present application also provides an air volume adjustment device for a cooling fan, comprising: a first determination module, configured to determine a target total power of a target cooling fan; a second determination module, configured to determine a target operating mode of the target cooling fan based on the target total power; a processing module, configured to determine a corresponding target control strategy based on the target operating mode, and adopt the target control strategy to adjust the air volume of the target cooling fan.

[0014] In one implementation, the first determination module is configured to: obtain a target power of each target functional module in the target cooling fan; and determine the target total power of the target cooling fan according to the target power of each target functional module.

[0015] In one implementation, the first determination module is configured to: obtain a target total current of the target cooling fan; and determine the target total power of the target cooling fan according to the target total current.

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

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

[0018] In one embodiment, the processing module is configured as follows: when the target operating mode is the first operating mode, determining the target control strategy as 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, determining the target control strategy as 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, determining the target control strategy as the 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 under the preset target speed level.

[0020] In the third aspect, an embodiment of the present application also provides an air volume adjustment system for a cooling fan, comprising: a fan; at least one fan; the fan is connected to a main control board through a signal isolation circuit; the signal isolation circuit is used to send the speed control signal of the main control board to the fan, and send the speed feedback signal of the fan to the main control board; the main control board and the fan are also connected to a fan power supply.

[0021] In the fourth aspect, an embodiment of the present application also provides an air volume adjustment system for a cooling fan, comprising: a fan; at least one fan; the fan is connected to a main control board through a signal isolation circuit; the signal isolation circuit is used to send the speed control signal of the main control board to the fan, and send the speed feedback signal of the fan to the main control board; the main control board and the fan are also connected to a 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.

[0022] In a fifth aspect, an embodiment of the present application provides a computer device, comprising: a processor, a storage medium and a bus, wherein the storage medium stores program instructions executable by the processor, and when the computer device is running, the processor communicates with the storage medium through the bus, and the processor executes the program instructions to perform the steps of any one of the above methods.

[0023] In a sixth aspect, an embodiment of the present application provides a non-volatile computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the above methods are executed.

[0024] The beneficial effects of the present application are: first, determining the target total power of the target cooling fan; second, determining the target operating mode of the target cooling fan according to the target total power; finally, determining the corresponding target control strategy according to the target operating mode, and using the target control strategy to adjust the air volume of the target cooling fan. In this way, the air volume (speed) of the cooling fan can be automatically adjusted according to the machine operating mode (total power); while achieving a good cooling effect, automatically reducing the air volume (speed) when the machine operating power is low can also achieve energy saving (extending battery life) and noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention 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.

[0026] Figure 1 A schematic flow chart of a method for adjusting the air volume of a cooling fan provided in an embodiment of the present application;

[0027] Figure 2 A schematic flow chart of a method for adjusting the air volume of a cooling fan provided in an embodiment of the present application;

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

[0029] Figure 4 A schematic flow chart of a method for adjusting the air volume of a cooling fan provided in an embodiment of the present application;

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

[0031] Figure 6 A schematic flow chart of a method for adjusting the air volume of a cooling fan provided in an embodiment of the present application;

[0032] Figure 7 A schematic flow chart of a method for adjusting the air volume of a cooling fan provided in an embodiment of the present application;

[0033] Figure 8 A schematic structural diagram of an air volume regulating device for a heat dissipation fan provided in an embodiment of the present application;

[0034] Fig. 9 A schematic diagram of the structure of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that if the terms "upper", "lower", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0040] Figure 1 A schematic diagram of a flow chart of a method for adjusting the air volume of a cooling fan provided in an embodiment of the present 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 adjusts the air volume.

[0043] The target total power 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. Figure 2 As shown, the above step 110 may include the following steps 210 and 220:

[0045] Step 210: Obtain 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, that is, the power of the target functional module.

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

[0049] The target functional modules include display screen, turbine, audio amplifier, CO2 module, SPO2 module and other modules. Furthermore, different brightness levels of the display screen correspond to different powers; different speed levels of the turbine correspond to different powers; different volumes of the audio amplifier correspond to different powers; different working states of the CO2 module correspond to different powers; different working states of the SPO2 module correspond to different powers; and other functional modules and different working states correspond to different powers.

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

[0051] The target total power of the target cooling fan may be obtained by adding the target powers of all target functional modules.

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

[0053] Step 410: Obtain a target total current of a 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 whole machine through the ADC current sampling circuit to obtain the target total current of the target cooling fan.

[0056] In actual operation, the data interface of the ADC current sampling circuit can be an 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 according to the target total current.

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

[0059] Step 120: Determine a target operating mode of a target cooling fan according to the target total power.

[0060] The cooling fan has different working modes. In different working modes, the function modules being run and the number of function modules being run may be different.

[0061] In the air volume adjustment method of the cooling fan provided in the embodiment of the present application, the working modes of the cooling fan are generally divided into three types: the first is a case where there are fewer function modules in operation and the heat can be naturally dissipated; the second is a case where there are more function modules in operation and the heat cannot be naturally dissipated; the third is a case where the total power of the function modules in operation exceeds a certain value and the heat dissipation needs to be adjusted to the maximum; specifically, Figure 6 As shown, the above step 120 may include the following steps 610 to 630:

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

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

[0064] Further, the first threshold may be determined according to a ratio of the target total power to the first threshold.

[0065] The first threshold ratio is a preset threshold ratio. In this way, the first threshold can be obtained according to the target total power and the first threshold ratio; specifically, the first threshold can be obtained by multiplying the target total power and the first threshold ratio.

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

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

[0068] The second threshold value may also be determined by calculation or experiment, which is not limited here.

[0069] Furthermore, the second threshold may be determined according to a ratio of the target total power to the second threshold.

[0070] The second threshold ratio is a preset threshold ratio. In this way, the second threshold can be obtained according to the target total power and the second threshold ratio; specifically, the second threshold can be obtained by multiplying the target total power and the second threshold ratio.

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

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

[0073] Among them, the third working mode is the third situation mentioned above.

[0074] Step 130: Determine a corresponding target control strategy according to the target working mode, and use the target control strategy to adjust the air volume of the target cooling fan.

[0075] Different working modes correspond to different control strategies. In different working modes, the corresponding control strategies are used to adjust the air volume of the cooling fan. Figure 7 As shown, the above step 130 may include the following steps 710 to 730:

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

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

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

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

[0080] The second control strategy is to control the speed of the target cooling fan according to the target total power.

[0081] The second working mode is the second case mentioned above. At this time, there are many function modules running, and the heat cannot be naturally dissipated. 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, the above step 720 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] Among them, in actual operation, first, the maximum power of the machine can be measured in advance, and then divided into ten levels from zero to maximum power, with the maximum power corresponding to 10 levels (or divided into more and more detailed levels); secondly, the air volume (number of revolutions) required for each power level is tested in advance and set in the software; finally, the machine actually detects the power in a certain mode, automatically identifies the power level, and then matches the required air volume (number of revolutions) to drive the fan to work.

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

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

[0086] The third working mode is the third situation mentioned above. At this time, 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 air volume adjustment method of the cooling fan provided in the embodiment of the present application first determines the target total power of the target cooling fan; secondly, determines the target working mode of the target cooling fan according to the target total power; finally, determines the corresponding target control strategy according to the target working mode, and uses the target control strategy to adjust the air volume of the target cooling fan. In this way, the air volume (rotation speed) of the cooling fan can be automatically adjusted according to the machine working mode (total power); while achieving a good cooling effect, automatically reducing the air volume (rotation speed) when the machine working power is low can also achieve energy saving (extending battery life) and noise reduction effects.

[0088] After introducing the air volume adjustment method of the heat dissipation fan according to the exemplary embodiment of the present disclosure, Figure 3 A heat dissipation fan air volume adjustment system 300 according to an exemplary embodiment of the present disclosure is described.

[0089] refer to Figure 3 , the air volume adjustment system 300 of the cooling fan comprises:

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

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

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

[0093] After introducing an air volume adjustment system of a heat dissipation fan according to an exemplary embodiment of the present disclosure, Figure 5 Another air volume adjustment system 500 for a heat dissipation fan according to an exemplary embodiment of the present disclosure is described.

[0094] refer to Figure 5 , a cooling fan air volume regulating system 500, comprising:

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

[0096] The fan 510 is connected to the main control board 530 via a signal isolation circuit 520; the signal isolation circuit 520 is used to send a speed control signal 540 of the main control board 530 to the fan 510, and send a speed feedback signal 550 of the fan 510 to the main control board 530;

[0097] The main control board 530 and the 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 an I2C / SPI / UART interface.

[0099] After introducing another air volume adjustment system of a heat dissipation fan according to an exemplary embodiment of the present disclosure, next, referring to Figure 8 The air volume adjustment device 800 of the heat dissipation fan according to the exemplary embodiment of the present disclosure will be described.

[0100] refer to Figure 8 The air volume regulating device 800 of the cooling fan 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 according to the target total power; a processing module 830, configured to determine the corresponding target control strategy according to the target operating mode, and adopt the target control strategy to adjust the air volume of the target cooling fan.

[0101] In one implementation, the first determination 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 according to the target power of each target functional module.

[0102] In one implementation, the first determination module 810 is configured to: obtain a target total current of a target cooling fan; and determine a target total power of the target cooling fan according to the target total current.

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

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

[0105] In one embodiment, the processing module 830 is configured as follows: when the target operating mode is the first operating mode, determining the target control strategy as 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, determining the target control strategy as 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, determining the target control strategy as the 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 under the preset target speed level.

[0107] The above-mentioned device is used to execute the method provided by the aforementioned embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0108] The above modules may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more microprocessors, or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0109] Fig. 9 A schematic diagram of a computer device provided in an embodiment of the present 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: a processor 901 , a storage medium 902 , and a bus 903 .

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

[0112] Optionally, the present invention also provides a program product, such as a computer-readable storage medium, comprising a program, which is used to execute the above method embodiment when executed by a processor.

[0113] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only 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 system, 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.

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

[0115] In addition, each functional unit in each embodiment of the present invention 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 hardware plus software functional units.

[0116] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to perform some steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (English: Read-Only Memory, abbreviated: ROM), random access memory (English: Random Access Memory, abbreviated: RAM), disk or optical disk and other media that can store program codes.

[0117] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for adjusting the air volume of a cooling fan, characterized in that: include: Determine the target total power of the target cooling fan; Determining a target operating mode of the target cooling fan according to the target total power; According to the target working mode, a corresponding target control strategy is determined, and the air volume of the target cooling fan is adjusted using the target control strategy.

2. The method according to claim 1, characterized in that The determining of the target total power of the target cooling fan includes: Obtaining target power of each target functional module in the target cooling fan; The target total power of the target cooling fan is determined according to the target power of each of the target functional modules.

3. The method according to claim 1, characterized in that The determining of the target total power of the target cooling fan includes: Obtaining a target total current of the target cooling fan; The target total power of the target cooling fan is determined according to the target total current.

4. The method according to claim 1, characterized in that: The step of determining a target operating mode of the target cooling fan according to the target total power includes: When the target total power is less than a first threshold, determining that the target operating mode of the target cooling fan is a first operating mode; When the target total power is between the first threshold and the second threshold, determining that the target operating mode of the target cooling fan is 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 a third operating mode.

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

6. The method according to claim 1, characterized in that Determining a corresponding target control strategy according to the target working mode includes: When the target operating mode is the first operating mode, determining that the target control strategy is 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, determining that the target control strategy is 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 rotation speed of the target cooling fan to be the maximum rotation speed.

7. The method according to claim 1, characterized in that The adopting the target control strategy to adjust the air volume of the target cooling fan 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.

8. A cooling fan air volume adjustment system, characterized in that: include: A fan; the number of 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 speed control signal of the main control board to the fan, and send the speed feedback signal of the fan to the main control board; The main control board and the fan are also connected to a fan power supply.

9. A cooling fan air volume adjustment system, characterized in that: include: A fan; the number of 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 speed control signal of the main control board to the fan, and send the speed feedback signal of the fan to the main control board; The main control board and the fan are also connected to a 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.

10. An air volume regulating device for a cooling fan, characterized in that: A first determination module is configured to determine a target total power of a target cooling fan; A second determining module is configured to determine a target operating mode of the target cooling fan according to the target total power; The processing module is configured to determine a corresponding target control strategy according to the target working mode, and use the target control strategy to adjust the air volume of the target cooling fan.

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