CN115421577A - Fan speed regulation method and device, electronic equipment and storage medium - Google Patents

Abstract

The embodiment of the present invention discloses a fan speed regulation method, device, electronic equipment and storage medium, wherein the method includes: obtaining the air inlet temperature value and the air outlet temperature value of the load fan device; The outlet air temperature value determines the speed matching degree between the current speed of the load fan in the load fan device and the actual demand speed; adjust the current speed of the load fan according to the speed matching degree. The technical solutions of the embodiments of the present invention can improve the accuracy of fan speed regulation, thereby improving the heat dissipation capability of the equipment system and saving energy consumption.

Description

A fan speed regulation method, device, electronic equipment and storage medium

technical field

Embodiments of the present invention relate to the technical field of fan control, and in particular, to a fan speed regulation method, device, electronic equipment, and storage medium.

Background technique

Currently, load fans are installed in most electronic devices. Among them, the load fan is also different from the system fan, and is a type of fan used to separately dissipate heat from some components in the electronic equipment. Exemplarily, a PSU fan is usually set in a PSU (Power supply unit, server power supply unit) of an electronic device to dissipate heat for the PSU, and the PSU fan is a type of load fan.

In normal working condition, the system fan and the load fan in the electronic equipment will work simultaneously. Among them, the system fan can provide cooling function for the whole system, and the load fan can provide cooling function for the load it is responsible for. Since both the system fan and the load fan are installed inside the device, especially when the system fan and the load fan are arranged side by side, the system fan and the load fan will compete for the air volume entering the chassis. As the heat flux density inside the equipment increases, the wind pressure parameters of the fans inside the system become higher and higher. When the speed of the system fan is high and the wind pressure is higher than that of the load fan, the load fan is prone to fan backflow, that is, the system fan will reverse the air volume of the load fan. When the load fan has a fan backflow problem, the heat dissipation capacity of the load components it is responsible for is reduced, and it will also deteriorate the heat dissipation environment inside the electronic device, resulting in overheating of key components such as the processor and memory of the device. Because the fan speed of the load fan is usually controlled by the default speed regulation logic, it cannot be adjusted according to the actual heat dissipation of the device or the load, which intensifies the risk of fan backflow. If you only judge whether the load meets the heat dissipation requirements according to the specifications of the load that the load fan is responsible for, and do not consider whether the load fan has backflow problems, it is only applicable to the case where the load fan is not back-drawn. However, when the load fan is reversed, it is still unreliable to judge the heat dissipation performance of the load according to the fixed rules in the specification.

In order to solve the backflow problem of the load fan and ensure the heat dissipation performance of the load, the prior art provides two solutions. The first one is to use load components or devices with high load fan speed to improve the heat dissipation capability of the load and reduce the adverse impact on system heat dissipation. The second is to continue to increase the system fan speed to improve the heat dissipation capacity when it is determined that the load fan is reversed and the load and system heat dissipation capacity are reduced.

In the process of implementing the present invention, the inventor found the following defects in the prior art: only using load components or equipment with high load fan speed will lead to limited application of load or equipment in certain critical states. Normally, the load fan speed is adjusted based on the load air inlet temperature. When the load air inlet temperature rises to the threshold, the load fan speed will increase, and the system fan speed will also be adjusted based on the load air inlet temperature. pull up. When the back-drawing ability of the system fan to the load fan is at a critical point (the wind speed inside the load is very low), only increasing the system fan speed will not only cause the system fan speed to increase, but also cause the temperature of the load air inlet to rise, which is harmful to the load. The cooling effect is even worse. That is to say, when the performance of the system fan significantly exceeds the performance of the load fan, the wind direction inside the load has been reversed. At this time, the air volume of the system fan to the system is reduced, which reduces the heat dissipation capacity of the system. At the same time, the air temperature of the load is high. , the risk of load heat dissipation is extremely high.

Contents of the invention

Embodiments of the present invention provide a fan speed regulation method, device, electronic equipment, and storage medium, which can improve the accuracy of fan speed regulation, thereby improving the heat dissipation capability of the equipment system and saving energy consumption.

According to an aspect of the present invention, a fan speed regulation method is provided, including:

Obtain the air inlet temperature value and the air outlet temperature value of the load fan device;

determining the speed matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value;

Adjust the current rotation speed of the load fan according to the rotation speed matching degree.

In the embodiment of the present invention, by obtaining the air inlet temperature value and the air outlet temperature value of the load fan device, the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed is determined according to the air inlet temperature value and the air outlet temperature value, The rationality of the current speed of the load fan can be grasped in real time, so that the current speed of the load fan can be adjusted according to the speed matching degree, and the problem of low accuracy of the existing fan speed regulation method can be solved, and the accuracy of the fan speed regulation can be improved, thereby improving The heat dissipation capacity of the equipment system and save energy consumption.

Optionally, the determining the speed matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value includes:

When the speed of the load fan is in a first limit state, calculate a first difference between the outlet air temperature value and the inlet air temperature value as a first temperature difference parameter;

When the speed of the load fan is in a second limit state, calculate a second difference between the outlet air temperature value and the inlet air temperature value as a second temperature difference parameter;

When the load fan is in a normal working state, calculate in real time the third difference between the outlet temperature value and the inlet temperature value as a real-time temperature difference parameter;

According to the size relationship between the first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter and the set temperature difference threshold, the speed matching degree between the current speed of the load fan and the actual required speed is determined.

Optionally, determining the current rotational speed of the load fan and the actual demanded rotational speed according to the size relationship among the first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter, and the set temperature difference threshold Speed matching degree, including:

When the real-time temperature difference parameter is greater than or equal to the first temperature difference parameter, and the real-time temperature difference parameter is less than or equal to the second temperature difference parameter, determine that the current speed of the load fan is equal to the actual required speed match;

When the real-time temperature difference parameter is smaller than the first temperature difference parameter, determine that the current speed of the load fan is higher than the actual required speed;

If the real-time temperature difference parameter is less than or equal to the set temperature difference threshold, it is determined that the current speed of the load fan is lower than the actual required speed.

The above technical solution, by adjusting the load fan to the limit state to obtain the temperature difference parameter in the limit state, combined with the set temperature difference threshold as the critical temperature difference value to compare and judge the real-time temperature difference parameters of the load fan, can accurately determine the current speed of the load fan and the actual demand The degree of deviation between the rotational speeds.

Optionally, the adjusting the current speed of the load fan according to the speed matching degree includes:

When the current speed of the load fan matches the actual required speed, adjust the current speed of the load fan according to a default fan speed regulation strategy of the load fan;

When the current speed of the load fan is higher than the actual required speed, adjust the current speed of the load fan according to the set fan speed reduction strategy;

In the case that the current rotational speed of the load fan is lower than the actual required rotational speed, the current rotational speed of the load fan is adjusted according to a set fan speed-up strategy.

The above technical solution, by adjusting the current speed of the load fan through different measurements according to the specific situation of whether the current speed of the load fan matches the actual demand speed, can ensure that the speed of the load fan is adjusted to a reasonable speed, so that the load fan Provide reasonable air volume for the load fan unit to dissipate heat.

Optionally, the adjusting the current speed of the load fan according to the set fan speed reduction strategy includes:

reducing the current speed of the load fan according to the set speed reduction adjustment step to obtain the first adjusted speed;

adjusting the current speed of the load fan according to the set fan speed reduction strategy to obtain a second adjusted speed;

Taking the rotational speed with a larger value among the first adjusted rotational speed and the second adjusted rotational speed as the first target adjusted rotational speed;

adjusting the current rotational speed of the load fan according to the first target adjusted rotational speed;

After the first residence time is set at intervals, return to the operation of determining the matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value, until it is determined The current speed of the load fan matches the actual demand speed.

Because the second adjusted rotational speed calculated inside the load fan device may have a heat dissipation risk, affecting the heat dissipation state of the load fan device. Therefore, after obtaining the two adjusted rotational speeds, the rotational speed with the larger value among the first adjusted rotational speed and the second adjusted rotational speed can be taken as the first target adjusted rotational speed, and the current rotational speed of the load fan can be decelerated according to the first target adjusted rotational speed. , so as to achieve the purpose of energy saving under the premise of ensuring the heat dissipation state of the load fan device.

Optionally, the adjusting the current speed of the load fan according to the set fan speed-up strategy includes:

increasing the current rotational speed of the load fan according to the set speed adjustment step to obtain a second adjusted rotational speed;

adjusting the current rotational speed of the load fan according to the second target adjusted rotational speed;

After the second residence time is set at intervals, return to the operation of determining the matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value, until it is determined The current speed of the load fan reaches a full load state.

In the above technical solution, by gradually increasing the speed of the load fan according to the set speed adjustment step, so as to match the demand of the load fan device for the actual required speed, the purpose of energy saving can be achieved under the premise of ensuring the cooling state of the load fan device.

Optionally, the fan speed regulation method also includes:

Obtain the working status of the system fan and monitor the real-time component temperature of the component;

When it is determined that the system fan is in a full-load working state, and the real-time component temperature is greater than or equal to the set component temperature, adjust the current speed of the load fan to a preset state, so that the system fan and all The above-mentioned load fans jointly perform the system heat dissipation function.

In the above technical solution, when other components of the electronic equipment system have poor heat dissipation, by increasing the rotation speed of the load fan, the load fan can enhance the heat dissipation of the system.

According to another aspect of the present invention, a fan speed regulating device is provided, comprising:

The temperature value acquisition module is used to acquire the air inlet temperature value and the air outlet temperature value of the load fan device;

A speed matching degree determination module, configured to determine the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed according to the inlet air temperature value and the outlet air temperature value;

A current rotational speed adjustment module, configured to adjust the current rotational speed of the load fan according to the rotational speed matching degree.

According to another aspect of the present invention, an electronic device is provided, and the electronic device includes:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the method described in any embodiment of the present invention. Fan speed regulation method.

According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement any of the embodiments of the present invention when executed. The fan speed adjustment method.

It should be understood that the content described in this section is not intended to identify key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will be easily understood from the following description.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a flow chart of a fan speed regulation method provided by an embodiment of the present invention;

Fig. 2 is a flowchart of a fan speed regulation method provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a simple internal structure of an electronic device provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of a fan speed regulating device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that 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 device comprising a series of steps or units is not necessarily limited to expressly instead of those steps or elements listed, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Fig. 1 is a flow chart of a fan speed regulation method provided by an embodiment of the present invention. This embodiment is applicable to the situation where the current speed of the load fan is adjusted according to the matching degree between the current speed of the load fan determined in real time and the actual demand speed. , the method can be performed by a fan speed control device, which can be implemented by software and/or hardware, and can generally be integrated in an electronic device. The electronic device can be a terminal device or a server device, as long as It only needs to have a load fan, and the embodiment of the present invention does not limit the specific device type of the electronic device. Correspondingly, as shown in Figure 1, the method includes the following operations:

S110. Obtain the air inlet temperature value and the air outlet temperature value of the load fan device.

Wherein, the load fan device may be a device equipped with a load fan. Optionally, the load fan device may also be configured with load components responsible for heat dissipation and cooling by the load fan. Exemplarily, the PSU component can be a load fan device, and correspondingly, the PSU fan inside the PSU can be used as a load fan configured in the load fan device.

Under normal circumstances, the inlet air temperature of the load fan unit should be consistent with the working detection temperature of the load fan unit, then the load fan unit can adopt its own inherent fan speed regulation strategy, and use the inlet air temperature value of the load fan unit as the value of the load fan unit. The speed is adjusted according to the working detection temperature. However, once the backflow problem of the load fan occurs, the corresponding relationship between the inlet air temperature and the working detection temperature will change. At this time, if still adopting its own inherent fan speed regulation strategy, and using the inlet air temperature value of the load fan device as the working detection temperature of the load fan device for speed regulation, even if the monitored air inlet temperature meets the current heat dissipation demand, it is no longer possible. Ensure the cooling performance of the load fan unit. It can be seen that the reliability and accuracy of speed regulation of the load fan only relying on the inlet air temperature of the load fan device is low.

In the embodiment of the present invention, if the load fan device is equipped with an air inlet temperature sensor at the air inlet and an outlet air temperature sensor at the air outlet, it can be obtained by obtaining the air inlet temperature sensor in the load fan device The temperature value and the air outlet temperature value of the air outlet temperature sensor are used as the air inlet temperature and the air outlet temperature of the load fan device. Alternatively, the inlet air temperature and the outlet air temperature may also be acquired in other ways, and the embodiment of the present invention does not limit the manner of acquiring the inlet air temperature and the outlet air temperature.

It should be noted that commonly used equipment motherboards are usually equipped with a BMC (Baseboard Management Controller, Baseboard Management Controller) to implement management functions on the motherboard, and the load fan device is a part of the motherboard, and the BMC also has the function of controlling it. Therefore, optionally, the BMC may be used to monitor and regulate the speed of the load fan. BMC is an independent system that does not depend on other hardware on the system (such as CPU or memory, etc.), nor does it depend on BIOS (Basic Input Output System, basic input and output system), OS (Operating System, operating system), etc., It can be used as an independent microprocessor to control the main board. Alternatively, other similar chips that have the function of controlling the motherboard can also be used to monitor and regulate the speed of the load fan. Alternatively, the fan speed regulation method provided by the embodiment of the present invention may also be packaged as an internal strategy in the load fan device, which is not limited by the embodiment of the present invention. Correspondingly, the electronic device implementing the fan speed regulation method can be of various types, such as network security device, server or industrial computer, as long as it has the requirement of adjusting the load fan, which is not limited in the embodiment of the present invention.

S120. Determine, according to the inlet air temperature value and the outlet air temperature value, the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed.

Wherein, the actual required rotational speed may be the rotational speed that the load fan should actually provide to the load under the condition of the current inlet air temperature and outlet air temperature. The rotational speed matching degree can represent the matching degree between the current rotational speed of the load fan and the actual demanded rotational speed.

It can be understood that the air inlet temperature value of the load fan device represents the internal ambient temperature of the load fan device at that time, and the outlet air temperature value can indirectly reflect the heat dissipation of the load fan device. Therefore, judging the matching degree between the current speed of the load fan in the fan-loading device and the actual demand speed based on the real-time air inlet temperature and air outlet temperature, that is, judging whether the air volume provided by the current load fan is reasonable, can ensure the current speed of the load fan Reliability and accuracy of judgment.

S130. Adjust the current rotation speed of the load fan according to the rotation speed matching degree.

Specifically, if it is determined according to the speed matching degree that the current speed of the load fan matches the actual demand speed, which indicates that the current load fan is in a normal working state, there is no need to intervene in the fan speed regulation strategy currently adopted. If it is determined according to the speed matching degree that the current speed of the load fan is lower than the actual required speed, which indicates that the current speed of the load fan is low, the current speed of the load fan may be appropriately increased. If it is determined according to the speed matching degree that the current speed of the load fan is higher than the actual required speed, which indicates that the current speed of the load fan is relatively high, then the current speed of the load fan may be appropriately reduced.

The speed regulation method of the above-mentioned load fan can effectively avoid the reduction of the heat dissipation capacity of the system caused by the reverse suction of the load fan, and the risk of heat dissipation to the body of the load fan device.

In the embodiment of the present invention, by obtaining the air inlet temperature value and the air outlet temperature value of the load fan device, the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed is determined according to the air inlet temperature value and the air outlet temperature value, The rationality of the current speed of the load fan can be grasped in real time, so that the current speed of the load fan can be adjusted according to the speed matching degree, and the problem of low accuracy of the existing fan speed regulation method can be solved, and the accuracy of the fan speed regulation can be improved, thereby improving The heat dissipation capacity of the equipment system and save energy consumption.

Fig. 2 is a flowchart of a fan speed regulation method provided by an embodiment of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiments, and provides a method for determining the current speed and the actual required speed of the load fan in the load fan device. The rotational speed matching degree, and various specific optional implementation manners of adjusting the current rotational speed of the load fan according to the determined rotational speed matching degree. Correspondingly, as shown in Figure 2, the method of this embodiment may include:

S210. Obtain the air inlet temperature value and the air outlet temperature value of the load fan device.

S220. When the rotation speed of the load fan is in a first limit state, calculate a first difference between the outlet air temperature value and the inlet air temperature value as a first temperature difference parameter.

Wherein, the first limit state may be the full load state of the load fan, that is, the state when the rotation speed is 100%. The first difference is also the difference between the outlet air temperature value and the inlet air temperature value when the speed of the load fan is in the first limit state. The first temperature difference parameter may represent the limit temperature difference between the outlet air temperature and the inlet air temperature under the full load state of the load fan.

Optionally, the first limit state can be reached by manually adjusting the speed of the load fan. Alternatively, it is also possible to adjust the speed of the load fan to reach the first limit state by sending a control command to the load fan. The embodiment of the present invention does not limit the adjustment method for the speed of the load fan to reach the first limit state. Correspondingly, when it is determined that the rotational speed of the load fan is in the first limit state, the first difference between the wind temperature value and the intake air temperature value may be calculated as the first temperature difference parameter.

S230. When the rotation speed of the load fan is in a second limit state, calculate a second difference between the outlet air temperature value and the inlet air temperature value as a second temperature difference parameter.

Wherein, the second limit state may be a state when the load fan is at the lowest speed. The second difference is also the difference between the outlet air temperature value and the inlet air temperature value when the speed of the load fan is in the second limit state. The second temperature difference parameter may represent the limit temperature difference between the outlet air temperature and the inlet air temperature under the lowest speed state of the load fan. It should be noted that the definition of the minimum speed state of the load fan is not simply the minimum speed of the fan, but refers to the minimum speed currently required by the load fan device calculated by the internal logic of the load fan device through an algorithm.

Optionally, the second limit state can be reached by manually adjusting the speed of the load fan. Alternatively, it is also possible to adjust the speed of the load fan to reach the second limit state by sending a control command to the load fan. The embodiment of the present invention also does not limit the adjustment method for the speed of the load fan to reach the second limit state. Correspondingly, when it is determined that the rotational speed of the load fan is in the second limit state, the second difference between the wind temperature value and the inlet air temperature value may be calculated as the second temperature difference parameter.

It should be noted that the first temperature difference parameter and the second temperature difference parameter can be used to judge the speed matching degree between the current speed of the load fan and the actual required speed, that is, to judge whether the current speed of the load fan meets the heat dissipation requirement of the load fan device.

S240. When the load fan is in a normal working state, calculate in real time a third difference between the outlet air temperature value and the inlet air temperature value as a real-time temperature difference parameter.

Wherein, the third difference is the real-time calculated difference between the outlet air temperature value and the inlet air temperature value when the speed of the load fan is in a normal working state. The real-time temperature difference parameter can represent the real-time temperature difference between the outlet air temperature and the inlet air temperature under the normal working state of the load fan.

Correspondingly, after the preparatory work is completed and the first temperature difference parameter and the second temperature difference parameter are obtained, the rationality of the rotation speed of the load fan can be judged in real time. Specifically, if it is determined that the load fan is in a normal working state, the third difference between the wind temperature value and the inlet air temperature value may be calculated in real time as the real-time temperature difference parameter. It should be noted that the normal working state of the load fan may include extreme states such as a full load state or a minimum speed state. When the speed of the load fan is fast and the air volume is large, the value of the real-time temperature difference parameter is relatively small; when the speed of the load fan is slow and the air volume is small, the value of the real-time temperature difference parameter is relatively large.

S250. Determine the speed matching degree between the current speed of the load fan and the actual required speed according to the size relationship between the first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter, and the set temperature difference threshold. .

Wherein, the set temperature difference threshold may be set according to fan speed regulation requirements, and in the embodiment of the present invention, the set temperature difference threshold may be 0.

Specifically, the first temperature difference parameter, the second temperature difference parameter, and the set temperature difference threshold can be used as the critical temperature difference value for judging whether the load fan speed is normal, high or low, and the real-time temperature difference parameter and the first temperature difference parameter and the second temperature difference parameter can be judged. The size relationship between the parameter and the set temperature difference threshold determines whether the current speed of the load fan matches the actual required speed.

The above technical solution, by adjusting the load fan to the limit state to obtain the temperature difference parameter in the limit state, combined with the set temperature difference threshold as the critical temperature difference value to compare and judge the real-time temperature difference parameters of the load fan, can accurately determine the current speed of the load fan and the actual demand The degree of deviation between the rotational speeds.

In an optional embodiment of the present invention, the current temperature of the load fan is determined according to the size relationship between the first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter, and the set temperature difference threshold. The rotational speed matching degree between the rotational speed and the actual required rotational speed may include: when the real-time temperature difference parameter is greater than or equal to the first temperature difference parameter, and the real-time temperature difference parameter is less than or equal to the second temperature difference parameter, Determine that the current rotational speed of the load fan matches the actual required rotational speed; when the real-time temperature difference parameter is smaller than the first temperature difference parameter and the real-time temperature difference parameter is greater than the set temperature difference threshold, determine that the The current speed of the load fan is higher than the actual demand speed; when the real-time temperature difference parameter is less than or equal to the set temperature difference threshold, it is determined that the current speed of the load fan is lower than the actual demand speed.

In a specific example, assuming that the first temperature difference parameter is Tm, the first temperature difference parameter is Tn, the real-time temperature difference parameter is Ti, and the temperature difference threshold is set to 0, then determine the speed matching degree between the current speed of the load fan and the actual demand speed Specifically, it can be: if 0<Tm<Ti<Tn, it means that the current speed of the load fan can normally discharge the air in the load fan device to the outside of the system. That is to say, the air volume passing through the load fan device is relatively large at this time, the temperature difference between the inlet and outlet air is small, the energy consumption of the load fan device is small, and the heat dissipation capacity is not required high. The current speed of the load fan matches the actual demand speed, and the current load fan provides The air volume is reasonable. If 0<Ti<Tm, it means that the current load fan does not have a backflow problem, but at this time the system fan also participates in the heat dissipation process of the load fan device. That is, the load fan and the system fan simultaneously provide air volume for the load to dissipate heat. At this time, the current speed of the load fan is relatively high, and the speed needs to be reduced appropriately to save energy dissipated by the load fan and improve energy saving. That is, the current rotation speed of the load fan is higher than the actual required rotation speed, and the air volume provided by the current load fan is relatively large. If Ti≤0, it means that the current load fan has a backflow problem and has been completely reversed. At this time, the current speed of the load fan is low and needs to be increased appropriately, that is, the current speed of the load fan is lower than the actual required speed, and the air volume provided by the current load fan is small.

S260. Determine whether the current rotation speed of the load fan matches the actual required rotation speed. If yes, execute S270; otherwise, execute S280.

S270. Adjust the current speed of the load fan according to the default fan speed regulation policy of the load fan.

Wherein, the default fan speed regulation policy may be the fan speed regulation strategy of the load fan factory.

Correspondingly, if it is determined that the current speed of the load fan matches the actual required speed, the current speed of the load fan can be adjusted normally according to the default fan speed control policy of the load fan without interfering with the fan speed control policy currently adopted by the load fan. .

S280. Determine whether the current rotation speed of the load fan is higher than the actual required rotation speed, if yes, execute S290; otherwise, execute S2A0.

S290. Adjust the current rotational speed of the load fan according to the set fan speed reduction strategy.

Wherein, the set fan speed reduction strategy may be a preset strategy for reducing the current speed of the load fan.

Correspondingly, if it is determined that the current rotational speed of the load fan is higher than the actual required rotational speed, the current rotational speed of the load fan may be decelerated according to the set fan deceleration strategy.

In an optional embodiment of the present invention, the adjusting the current speed of the load fan according to the set fan speed reduction strategy may include: reducing the current speed of the load fan according to the set speed reduction adjustment step to obtain the first Adjusting the rotational speed; adjusting the current rotational speed of the load fan according to the default fan speed regulation strategy to obtain a second adjusted rotational speed; taking the rotational speed with a larger value among the first adjusted rotational speed and the second adjusted rotational speed as the first target Adjust the rotation speed; adjust the current rotation speed of the load fan according to the first target adjustment rotation speed; after setting the first dwell time at intervals, return to determine the load fan according to the inlet air temperature value and the outlet air temperature value The operation of the matching degree between the current rotation speed of the load fan in the device and the actual required rotation speed until it is determined that the current rotation speed of the load fan matches the actual required rotation speed.

Wherein, the set speed reduction adjustment step may be a speed reduction step preset according to the actual heat dissipation capability of the electronic device, for example, it may be 5% duty or 10% duty. Among them, duty represents the duty cycle, which refers to the ratio of the power-on time to the total time in a pulse cycle. The duty is proportional to the fan speed. For example, 100% duty means the fan speed is at full speed, and 50% duty means the fan speed is half of the full speed. Correspondingly, 5% duty means that the fan speed is 5% of full speed. Optionally, setting the deceleration adjustment step can specifically be set according to the system working conditions of the electronic equipment, and an appropriate value obtained through testing can avoid repeated oscillations of deceleration and acceleration. The first adjusted rotational speed may be a rotational speed obtained by decelerating the current rotational speed of the load fan once according to the set deceleration adjustment step. The second adjusted rotational speed may be a rotational speed obtained by adjusting the current rotational speed of the load fan according to the default fan speed regulation policy. The first target adjusted rotational speed may be the rotational speed with a larger value among the first adjusted rotational speed and the second adjusted rotational speed. The setting of the first residence time can be set according to the actual heat dissipation demand, for example, it can be 1 minute or 30 seconds, etc. The embodiment of the present invention does not limit the specific time value for setting the first residence time.

Specifically, when the current speed of the load fan needs to be decelerated, the current speed of the load fan can be reduced according to the set speed reduction adjustment step to obtain the first adjusted speed, for example, the current speed can be decelerated once by 5% duty to obtain Adjust the speed first. At the same time, the current rotation speed may be adjusted according to the default fan speed regulation strategy of the load fan to obtain the second adjusted rotation speed. Because the second adjusted rotational speed calculated inside the load fan device may have a heat dissipation risk, affecting the heat dissipation state of the load fan device. Therefore, after obtaining the two adjusted rotational speeds, the rotational speed with the larger value among the first adjusted rotational speed and the second adjusted rotational speed can be taken as the first target adjusted rotational speed, and the current rotational speed of the load fan can be decelerated according to the first target adjusted rotational speed. , so as to achieve the purpose of energy saving under the premise of ensuring the heat dissipation state of the load fan device. Due to the fast deceleration speed of the load fan, but the temperature change in the load fan unit is relatively slow, it is necessary to stay for a certain period of time to reserve a cache time for the temperature change in the load fan unit to match the temperature response time. Therefore, after adjusting the speed of the load fan once, the load fan can be kept at the first target adjusted speed, and the first dwell time can be set at intervals before judging whether it is necessary to continue to adjust the speed of the load fan. Specifically, after the first residence time is set at intervals, the operation of determining the matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value can be returned to determine Whether it is necessary to reduce the speed of the load fan until it is determined that the current speed of the load fan matches the actual required speed.

In a specific example, assuming that the current load fan speed is 80% duty, the calculated first adjusted speed is 75% duty, and the second adjusted speed calculated inside the load fan unit is 60% duty, then 75% duty As the first target to adjust the rotational speed, the rotational speed of the load fan may be adjusted from 80% duty to 75% duty.

S2A0. Adjust the current rotational speed of the load fan according to the set fan speed-up strategy.

Wherein, the set fan speed-up strategy may be a preset strategy for speeding up the current rotational speed of the load fan.

Correspondingly, if it is determined that the current speed of the load fan is lower than the actual required speed, the current speed of the load fan may be increased according to the set fan speed-up strategy.

The above technical solution, by adjusting the current speed of the load fan through different measurements according to the specific situation of whether the current speed of the load fan matches the actual demand speed, can ensure that the speed of the load fan is adjusted to a reasonable speed, so that the load fan Provide reasonable air volume for the load fan unit to dissipate heat.

In an optional embodiment of the present invention, the adjusting the current speed of the load fan according to the set fan speed-up strategy may include: increasing the current speed of the load fan according to the set speed-up adjustment step to obtain the first Two target adjustment speed; adjust the current speed of the load fan according to the second target adjustment speed; after setting the second dwell time at intervals, return to the execution to determine the The operation of the matching degree between the current speed of the load fan in the load fan device and the actual required speed until it is determined that the current speed of the load fan reaches a full load state.

Wherein, the set speed-up adjustment step may be a speed-up step preset according to the actual cooling capacity of the electronic device, for example, it may be 30% duty or 20% duty. The second target adjusted rotational speed may be a rotational speed obtained by increasing the current rotational speed of the load fan once according to the set increment adjustment step. The setting of the second residence time can be set according to the actual heat dissipation demand, for example, it can be 30 seconds, etc. The embodiment of the present invention also does not limit the specific time value of the second residence time.

Specifically, when the current speed of the load fan needs to be increased, the current speed of the load fan can be increased according to the set speed adjustment step to obtain the second target adjusted speed, for example, the current speed can be increased once by 30% duty The second target adjusted rotational speed is obtained, and the current rotational speed of the load fan is increased and adjusted according to the second target adjusted rotational speed. Similarly, due to the fast speed of the load fan, the temperature change in the load fan unit is relatively slow, so it is necessary to stay for a certain period of time to reserve a cache time for the temperature change in the load fan unit to match the temperature response time. Therefore, after adjusting the speed of the load fan once, the load fan can be kept at the second target adjusted speed, and the second dwell time can be set at intervals before judging whether it is necessary to continue to adjust the speed of the load fan. Specifically, after the second residence time is set at intervals, the operation of determining the matching degree between the current speed of the load fan in the load fan device and the actual required speed can be performed again according to the inlet air temperature value and the air outlet temperature value, until it is determined The current speed of the load fan reaches the full load state, that is, the speed of the load fan has been pulled to full. It should be noted that if the speed of the load fan continues to increase to full load, and the full load speed of the load fan is still lower than the actual required speed, it indicates that the current electronic equipment has a risk of high temperature operation, and the load fan device can trigger the alarm function and send an alarm The information is pushed to the chip or functional module for speed regulation of the load fan to notify the staff to intervene as soon as possible.

In the above technical solution, by gradually increasing the speed of the load fan according to the set speed adjustment step, so as to match the demand of the load fan device for the actual required speed, the purpose of energy saving can be achieved under the premise of ensuring the cooling state of the load fan device.

In an optional embodiment of the present invention, the fan speed regulation method may also include: obtaining the working status of the system fan and monitoring the real-time component temperature of the component; When the temperature is greater than or equal to the set component temperature, the current rotational speed of the load fan is adjusted to a preset state, so that the system fan and the load fan jointly perform a system cooling function.

Wherein, the monitoring component may be a component in the electronic device that needs to monitor temperature, such as CPU or memory. The real-time component temperature may be the temperature detected in real time for the monitoring component. The temperature setting of the component can be a temperature threshold set according to the heat dissipation requirements of the monitoring component, and the specific value can be set according to the type of the monitoring component and the working environment. Embodiments of the present invention do not limit the specific temperature value of the temperature setting of the component. The preset state may be, for example, a high-speed operation state or a full-load state.

In order to further improve the system heat dissipation capability of the electronic device, the electronic device can also obtain the working status of the system fan and the real-time component temperature of the monitoring component, so as to monitor in real time whether the current temperature of the monitoring component exceeds the set component temperature. If it is determined that the system fan is working at full load and the real-time component temperature is greater than or equal to the set component temperature, it indicates that the current system fan cannot meet the cooling requirements of the system, and the monitored component temperature is too high, which may cause damage. At this time, the current speed of the load fan can be adjusted to a preset state, for example, the speed of the load fan can be adjusted to 100%, so that the system fan and the load fan can jointly perform the system heat dissipation function, so that the load fan can also participate in the system heat dissipation process.

It is understandable that an excessively high system temperature can adversely affect the entire electronic device. Therefore, once it is detected that the system fan is in a full-load working state, and the real-time component temperature is greater than or equal to the set component temperature, no matter whether the current speed of the load fan matches the actual demand speed, the current speed of the load fan needs to be adjusted to the preset state , so that the load fan participates in the cooling function of the system.

In the above technical solution, when other components of the electronic equipment system have poor heat dissipation, by increasing the rotation speed of the load fan, the load fan can enhance the heat dissipation of the system.

Fig. 3 is a schematic diagram of a simple internal structure of an electronic device provided by an embodiment of the present invention. In order to express the technical solution provided by the embodiment of the present invention more clearly, in a specific example, a network security device is used as an electronic device, and a network security device is used as an electronic device. The BMC chip of the security device is used as the execution body of the fan speed adjustment, and the PSU fan in the device is used as the load fan as an example for specific description. As shown in Figure 3, the motherboard 310 is used to carry all the components, the left side 330 is the front network card, and 320 is the BMC management interface small board; the center of the device is the motherboard 340, and the main components on the motherboard are CPU350 and memory 360. At the same time, the BMC chip 370 is arranged behind the motherboard memory to manage the information of the whole machine; the right side of the BMC chip 370 is the rear hard disk 380, which is used to store the system and related data. It is the power supply module PSU3A0 of the equipment, and the PSU fan 3B0 is placed inside the PSU 3A0; a is the temperature sensor of the front air inlet inside the PSU, and b is the temperature sensor of the rear air outlet inside the PSU.

Correspondingly, the network security device adjusts the speed of the PSU fan by using the BMC combined with the PSU internal fan speed adjustment logic, which may specifically include the following process:

Step 1. Obtain two temperature difference parameters Tm and Tn, Tm and Tn, by testing the PSU in the electronic device.

Specifically, if the PSU is "1+1" redundant, you can manually adjust the PSU fan speed to 100% when the PSU is half-loaded, and read Ta (inlet air temperature value of the air inlet temperature sensor a) and Tb (the value of the outlet temperature of the outlet temperature sensor b) and calculate Tm=Tb-Ta. In addition, you can also manually adjust the PSU fan to the minimum speed (the minimum speed currently required by the PSU calculated by the internal logic of the PSU through an algorithm), read Ta and Tb, and calculate Tn=Tb-Ta. It is understandable that the calculated Tm and Tn values are different for different PSU models. When the PSU model is changed, the BMC needs to reacquire the temperature difference parameters of Tm and Tn corresponding to the updated PSU model.

It should be noted that the above definition of the minimum speed of the PSU fan is not simply the minimum speed of the PSU fan, but the minimum speed currently required by the PSU calculated by the internal logic of the PSU through an algorithm.

Step 2: After obtaining the temperature difference parameter names of Tm and Tn, the BMC can monitor the temperature value Ta of the temperature sensor a and the temperature value Tb of the temperature sensor b in real time, and set Ti=Tb-Ta to obtain the real-time temperature difference parameter Ti.

Step 3: Judging the matching degree between the current speed of the PSU fan and the actual required speed according to the acquired temperature difference parameters, and adjusting the current speed of the PSU fan according to the judgment result.

Specifically, when 0<Tm<Ti<Tn, it means that the PSU fan can normally discharge the air in the PSU out of the system, that is, the current air volume passing through the PSU is relatively large, which meets the heat dissipation requirements of the PSU, and the temperature difference between the air entering and leaving the PSU is small. At this time, the speed of the PSU fan can be adjusted normally according to the internal fan speed adjustment policy that comes with it when it leaves the factory.

Specifically, when 0<Ti<Tm, it means that the current PSU fan does not back pump, but the system fan also participates in the PSU heat dissipation. That is to say, the current PSU fan rotates at a high speed and needs to be properly reduced. At this time, the BMC uses the current speed of the PSU fan to reduce the speed according to 5% duty to calculate the first adjusted speed, and at the same time obtains the second adjusted speed calculated inside the PSU. Further, the BMC takes the maximum value between the first adjusted speed and the second adjusted speed as the first target adjusted speed, adjusts the current speed of the PSU fan to the first target adjusted speed and stays there for 1 minute (no fan speed adjustment in the middle) Then judge until 0<Tm<Ti<Tn is satisfied.

Specifically, when Ti≤0, it means that the fan of the PSU has been completely reversed, and the speed of the fan of the PSU needs to be increased rapidly to reverse the reverse wind direction inside the PSU. At this time, the BMC can increase the current speed of the PSU according to the increase step of 30% duty, and each increase can stay for 30s, and re-judgment is performed until 0<Tm<Ti<Tn is satisfied. If the fan speed of the PSU has been pulled up to full speed, but Ti≤0, the alarm function will be triggered at this time, and the alarm information will be pushed to the BMC, and the BMC will notify the staff to intervene as soon as possible.

In addition, when the speed of the system fan in the device has been pulled up to full speed, but the temperature of a certain component of the device system, such as the CPU, is close to the threshold or even exceeds the threshold, in order to protect the system components, you can send an instruction to the PSU through the BMC to pull the PSU fan. To cool down the system and enhance the overall cooling capacity of the system. Optionally, the speed regulation logic of this fan has the highest priority to meet the overall cooling requirements of the system. It should be noted that for some devices with the rear fan of the system, the PSU fan can directly run at full load, but it will cause problems such as loud noise of the PSU fan, increased energy consumption, and fast consumption of the fan life.

The above technical solution uses the BMC management chip to judge the real-time temperature difference parameter value of Ti in real time, and adjusts the speed of the PSU fan according to the judgment result, which can prevent the system fan and the PSU fan from being installed side by side. Problems with heat dissipation and reduced system heat dissipation. At the same time, the stepped speed regulation method can also eliminate the problem of system fan vibration caused by the temperature fluctuation of the PSU inlet air temperature caused by the return flow of the PSU fan, thereby improving the reliability and accuracy of the PSU fan speed regulation. When the heat dissipation of other parts of the system is poor, the BMC management chip can also be used to increase the speed of the PSU fan, so that the PSU fan can participate in the system heat dissipation, so as to achieve the effect of enhancing the system heat dissipation.

It should be noted that any permutation and combination of the technical features in the above embodiments also falls within the protection scope of the present invention.

Fig. 4 is a schematic diagram of a fan speed control device provided by an embodiment of the present invention. As shown in Fig. 4, the device includes: a temperature value acquisition module 410, a speed matching degree determination module 420, and a current speed adjustment module 430, wherein:

A temperature value acquisition module 410, configured to acquire the air inlet temperature value and the air outlet temperature value of the load fan device;

The speed matching degree determination module 420 is configured to determine the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed according to the inlet air temperature value and the outlet air temperature value;

The current speed adjustment module 430 is configured to adjust the current speed of the load fan according to the speed matching degree.

In the embodiment of the present invention, by obtaining the air inlet temperature value and the air outlet temperature value of the load fan device, the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed is determined according to the air inlet temperature value and the air outlet temperature value, The rationality of the current speed of the load fan can be grasped in real time, so that the current speed of the load fan can be adjusted according to the speed matching degree, and the problem of low accuracy of the existing fan speed regulation method can be solved, and the accuracy of the fan speed regulation can be improved, thereby improving The cooling capacity of the equipment system and save energy consumption.

Optionally, the rotational speed matching degree determining module is specifically configured to: when the rotational speed of the load fan is in the first limit state, calculate the first difference between the outlet air temperature value and the inlet air temperature value as the first temperature difference parameter; when the speed of the load fan is in the second limit state, calculate the second difference between the outlet air temperature value and the inlet air temperature value as the second temperature difference parameter; when the load fan is in normal operation state, calculate the third difference between the outlet temperature value and the inlet temperature value in real time as the real-time temperature difference parameter; according to the first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter and the set The size relationship between the constant temperature difference thresholds determines the speed matching degree between the current speed of the load fan and the actual required speed.

Optionally, the rotational speed matching degree determination module is specifically configured to: determine if the real-time temperature difference parameter is greater than or equal to the first temperature difference parameter, and the real-time temperature difference parameter is less than or equal to the second temperature difference parameter The current speed of the load fan matches the actual demand speed; when the real-time temperature difference parameter is smaller than the first temperature difference parameter, determine that the current speed of the load fan is higher than the actual demand speed; When the real-time temperature difference parameter is less than or equal to the set temperature difference threshold, it is determined that the current speed of the load fan is lower than the actual required speed.

Optionally, the current speed adjustment module is specifically configured to: adjust the speed of the load fan according to the default fan speed regulation strategy of the load fan when the current speed of the load fan matches the actual demand speed. current speed; when the current speed of the load fan is higher than the actual demand speed, adjust the current speed of the load fan according to the set fan speed reduction strategy; when the current speed of the load fan is lower than the In the case of an actual required rotational speed, the current rotational speed of the load fan is adjusted according to the set fan speed-up strategy.

Optionally, the current speed adjustment module is specifically used to: reduce the current speed of the load fan according to the set speed reduction adjustment step to obtain the first adjusted speed; adjust the speed of the load fan according to the set fan speed reduction strategy. Obtaining the second adjusted rotational speed from the current rotational speed; using the rotational speed with a larger value among the first adjusted rotational speed and the second adjusted rotational speed as the first target adjusted rotational speed; adjusting the current rotational speed of the load fan according to the first target adjusted rotational speed Rotational speed; after setting the first residence time at intervals, return to the operation of determining the matching degree between the current rotational speed of the load fan in the load fan device and the actual required rotational speed according to the inlet air temperature value and the outlet air temperature value, until it is determined that the current rotation speed of the load fan matches the actual required rotation speed.

Optionally, the current speed adjustment module is specifically used to: increase the current speed of the load fan according to the set speed adjustment step to obtain a second adjusted speed; adjust the current speed of the load fan according to the second target speed adjustment. Speed; after setting the second residence time at intervals, return to the operation of determining the matching degree of the current speed of the load fan in the load fan device with the actual required speed according to the inlet air temperature value and the outlet air temperature value, until it is determined that the current rotational speed of the load fan reaches a full load state.

Optionally, the fan speed control device further includes: a real-time component temperature acquisition module, configured to acquire the working status of the system fan and monitor the real-time component temperature of the component; a preset state adjustment module, configured to determine that the system fan is in the In a full-load working state, and the real-time component temperature is greater than or equal to the set component temperature, adjust the current speed of the load fan to a preset state, so that the system fan and the load fan jointly perform system cooling Function.

The above-mentioned fan speed regulating device can execute the fan speed regulating method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method. For technical details not exhaustively described in this embodiment, refer to the fan speed regulation method provided in any embodiment of the present invention.

FIG. 5 shows a schematic structural diagram of an electronic device 10 that can be used to implement an embodiment of the present invention. Electronic device is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (eg, helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are by way of example only, and are not intended to limit implementations of the inventions described and/or claimed herein.

As shown in FIG. 5 , the electronic device 10 includes at least one processor 11, and a memory connected in communication with the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores There is a computer program executable by at least one processor, and the processor 11 can operate according to a computer program stored in a read-only memory (ROM) 12 or loaded from a storage unit 18 into a random access memory (RAM) 13. Various appropriate actions and processes are performed. In the RAM 13, various programs and data necessary for the operation of the electronic device 10 are also stored. The processor 11 , ROM 12 , and RAM 13 are connected to each other through a bus 14 . An input/output (I/O) interface 15 is also connected to the bus 14 .

Multiple components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, and the like. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices through a computer network such as the Internet and/or various telecommunication networks.

Processor 11 may be various general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), various dedicated artificial intelligence (AI) computing chips, various processors that run machine learning model algorithms, digital signal processing processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes various methods and processes described above, for example, a fan speed regulation method.

In some embodiments, the fan speed regulation method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 18 . In some embodiments, part or all of the computer program may be loaded and/or installed on the electronic device 10 via the ROM 12 and/or the communication unit 19 . When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the fan speed regulation method described above can be executed. Alternatively, in other embodiments, the processor 11 may be configured in any other appropriate way (for example, by means of firmware) to execute the fan speed regulation method.

Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips Implemented in a system of systems (SOC), load programmable logic device (CPLD), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpreted on a programmable system including at least one programmable processor, the programmable processor Can be special-purpose or general-purpose programmable processor, can receive data and instruction from storage system, at least one input device, and at least one output device, and transmit data and instruction to this storage system, this at least one input device, and this at least one output device an output device.

Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, so that the computer program causes the functions/operations specified in the flowcharts and/or block diagrams to be implemented when executed by the processor. A computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus or device. A computer readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium may be a machine readable signal medium. More specific examples of machine-readable storage media would include one or more wire-based electrical connections, portable computer disks, hard disks, Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM or flash memory), optical fiber, compact disk read only memory (CD-ROM), optical storage, magnetic storage, or any suitable combination of the foregoing.

In order to provide interaction with the user, the systems and techniques described herein can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display)) for displaying information to the user. monitor); and a keyboard and pointing device (eg, a mouse or a trackball) through which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and can be in any form (including Acoustic input, voice input or tactile input) to receive input from the user.

The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., as a a user computer having a graphical user interface or web browser through which a user can interact with embodiments of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system. The components of the system can be interconnected by any form or medium of digital data communication, eg, a communication network. Examples of communication networks include: local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

A computing system can include clients and servers. Clients and servers are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or a cloud host. It is a host product in the cloud computing service system to solve the problems of difficult management and weak business expansion in traditional physical hosts and VPS services. defect.

Optionally, the electronic device may further include a load fan device, and the load fan device may include an inlet air temperature sensor, an outlet air temperature sensor, and a load fan. Wherein, the inlet air temperature sensor is used to collect the inlet air temperature value, the outlet air temperature sensor is used to collect the outlet air temperature value, and the load fan can dissipate heat from the load fan device and, if necessary, the system of the electronic equipment. The processor of the electronic device may be a type of processor (such as BMC, etc.) capable of running a management and control function for components.

An embodiment of the present invention also provides a computer storage medium storing a computer program, the computer program is used to execute the fan speed regulation method described in any one of the above-mentioned embodiments of the present invention when executed by a computer processor: obtain the load fan device The air inlet temperature value and the air outlet temperature value; determine the speed matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value; according to the speed matching Adjust the current speed of the load fan by degrees.

The computer storage medium in the embodiments of the present invention may use any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more conductors, portable computer disks, hard disks, Random Access Memory (RAM), Read Only Memory (ReadOnly Memory, ROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, EPROM, or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable The combination. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium may be transmitted by any appropriate medium, including but not limited to wireless, wire, optical cable, radio frequency (Radio Frequency, RF), etc., or any suitable combination of the above.

Computer program code for carrying out the operations of the present invention may be written in one or more programming languages, or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional A procedural programming language, such as the "C" language or similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (such as through an Internet connection using an Internet service provider). ).

It should be understood that steps may be reordered, added or deleted using the various forms of flow shown above. For example, each step described in the present invention may be executed in parallel, sequentially, or in a different order, as long as the desired result of the technical solution of the present invention can be achieved, there is no limitation herein.

The above specific implementation methods do not constitute a limitation to the protection scope of the present invention. It should be apparent to those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A fan speed regulation method, characterized in that, comprising: Obtain the air inlet temperature value and the air outlet temperature value of the load fan device; determining the speed matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value; Adjust the current rotation speed of the load fan according to the rotation speed matching degree. 2. The method according to claim 1, characterized in that, according to the inlet air temperature value and the outlet air temperature value, it is determined that the current rotation speed of the load fan in the load fan device matches the actual required rotation speed. degrees, including: When the speed of the load fan is in a first limit state, calculate a first difference between the outlet air temperature value and the inlet air temperature value as a first temperature difference parameter; When the speed of the load fan is in a second limit state, calculate a second difference between the outlet air temperature value and the inlet air temperature value as a second temperature difference parameter; When the load fan is in a normal working state, calculate in real time the third difference between the outlet temperature value and the inlet temperature value as a real-time temperature difference parameter; According to the size relationship between the first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter and the set temperature difference threshold, the speed matching degree between the current speed of the load fan and the actual required speed is determined. 3. The method according to claim 2, characterized in that, the said first temperature difference parameter, the second temperature difference parameter, the real-time temperature difference parameter and the set temperature difference threshold are determined according to the magnitude relationship among the temperature difference thresholds. The speed matching degree between the current speed of the load fan and the actual demand speed, including: When the real-time temperature difference parameter is greater than or equal to the first temperature difference parameter, and the real-time temperature difference parameter is less than or equal to the second temperature difference parameter, determine that the current speed of the load fan is equal to the actual required speed match; When the real-time temperature difference parameter is smaller than the first temperature difference parameter, and the real-time temperature difference parameter is greater than the set temperature difference threshold, determine that the current speed of the load fan is higher than the actual required speed; If the real-time temperature difference parameter is less than or equal to the set temperature difference threshold, it is determined that the current speed of the load fan is lower than the actual required speed. 4. The method according to claim 1, wherein the adjusting the current speed of the load fan according to the speed matching degree comprises: When the current speed of the load fan matches the actual required speed, adjust the current speed of the load fan according to a default fan speed regulation strategy of the load fan; When the current speed of the load fan is higher than the actual required speed, adjust the current speed of the load fan according to the set fan speed reduction strategy; In the case that the current rotational speed of the load fan is lower than the actual required rotational speed, the current rotational speed of the load fan is adjusted according to a set fan speed-up strategy. 5. The method according to claim 4, wherein the adjusting the current speed of the load fan according to the set fan speed reduction strategy comprises: reducing the current speed of the load fan according to the set speed reduction adjustment step to obtain the first adjusted speed; adjusting the current speed of the load fan according to the default fan speed regulation strategy to obtain a second adjusted speed; Taking the rotational speed with a larger value among the first adjusted rotational speed and the second adjusted rotational speed as the first target adjusted rotational speed; adjusting the current rotational speed of the load fan according to the first target adjusted rotational speed; After the first residence time is set at intervals, return to the operation of determining the matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value, until it is determined The current speed of the load fan matches the actual demand speed. 6. The method according to claim 4, wherein the adjusting the current speed of the load fan according to the set fan speed-up strategy comprises: increasing the current rotational speed of the load fan according to the set speed adjustment step to obtain a second target adjusted rotational speed; adjusting the current rotational speed of the load fan according to the second target adjusted rotational speed; After the second residence time is set at intervals, return to the operation of determining the matching degree between the current speed of the load fan in the load fan device and the actual demand speed according to the air inlet temperature value and the air outlet temperature value, until it is determined The current speed of the load fan reaches a full load state. 7. The method according to claim 1, further comprising: Obtain the working status of the system fan and monitor the real-time component temperature of the component; When it is determined that the system fan is in a full-load working state, and the real-time component temperature is greater than or equal to the set component temperature, adjust the current speed of the load fan to a preset state, so that the system fan and all The above-mentioned load fans jointly perform the system heat dissipation function. 8. A fan speed regulating device, characterized in that it comprises: The temperature value acquisition module is used to acquire the air inlet temperature value and the air outlet temperature value of the load fan device; A speed matching degree determination module, configured to determine the speed matching degree between the current speed of the load fan in the load fan device and the actual required speed according to the inlet air temperature value and the outlet air temperature value; A current rotational speed adjustment module, configured to adjust the current rotational speed of the load fan according to the rotational speed matching degree. 9. An electronic device, characterized in that the electronic device comprises: at least one processor; and a memory communicatively coupled to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, the computer program is executed by the at least one processor, so that the at least one processor can perform any one of claims 1-7 The fan speed regulation method described above. 10. A computer storage medium, characterized in that the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the processor to implement the fan speed regulation according to any one of claims 1-7 method.

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