CN110345099B - Method, device and system for regulating speed of server fan - Google Patents
Method, device and system for regulating speed of server fan Download PDFInfo
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- CN110345099B CN110345099B CN201910648519.3A CN201910648519A CN110345099B CN 110345099 B CN110345099 B CN 110345099B CN 201910648519 A CN201910648519 A CN 201910648519A CN 110345099 B CN110345099 B CN 110345099B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/206—Cooling means comprising thermal management
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/70—Type of control algorithm
- F05D2270/706—Type of control algorithm proportional-integral-differential
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Abstract
The invention provides a method, a device and a system for regulating the speed of a server fan, wherein the method comprises the following steps: acquiring parameters for speed regulation control of a server fan and initializing the parameters; starting a test, and acquiring and storing log data of fan speed regulation control according to a preset time interval; calculating the change of the rotating speed of the fan and the temperature change of a controlled device on the server according to the log data; and according to the change of the rotating speed of the fan, if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting the output parameters according to the sensitivity, the log data and the last adjustment, and adjusting the data values corresponding to the parameters until the temperature change of the controlled device is smaller than or equal to the target threshold. The problem that the traditional PID setting process depends on experience is solved, automatic analysis and efficient processing of PID fan speed regulation are achieved, the setting process is digitalized and graphical, the intuitiveness of PID fan speed regulation and setting is improved, the setting efficiency is improved, adaptation to different servers can be achieved, and the wide usability is achieved.
Description
Technical Field
The invention relates to the technical field of computer heat dissipation equipment, in particular to a method, a device and a system for regulating speed of a server fan.
Background
With the development of computer technology, the server has limited volume, and a plurality of high-power electronic elements can operate for a long time and under high load in the server, so whether the generated heat can be transferred to the outside in time is directly related to the stability of the operation of the server. Therefore, demands for heat dissipation of a GPU, an MIC card, and the like that passively dissipate heat in a server for high performance computing are increasing.
The heat dissipation technology of the server includes air-cooled heat dissipation, liquid-cooled heat dissipation, heat transfer, and the like. A fan is commonly used for air cooling and heat dissipation. The server generates wind flow (circulation flow) in the case by means of a fan to take away heat of heat generating devices (such as a CPU, a memory, a hard disk and the like) so as to realize heat dissipation. In the design of fan regulation and control, the PID algorithm is a common one.
However, in general PID fan control, a correspondence relationship between the temperature of the server and the fan rotational speed is generally set in advance, and then the fan rotational speed is controlled by the correspondence relationship between the temperature and the fan rotational speed according to the actual temperature of the server. However, when the temperature of the server motherboard or the like changes suddenly, the rotating speed of the fan cannot respond quickly; in addition, the manual analysis of the log data controlled by the fan is easy to make mistakes due to huge log data volume, and the regulation and control of the PID in the server mainly depend on experience, so that the setting efficiency is not high.
Disclosure of Invention
The invention provides a method, a device and a system for regulating the speed of a server fan, which are used for realizing automatic analysis and efficient processing of PID fan speed regulation, digitizing and imaging a setting process, improving the intuitiveness of PID fan speed regulation and setting, improving the setting efficiency, realizing adaptation to different servers and having wide usability.
In a first aspect, a method for regulating speed of a server fan provided in an embodiment of the present invention includes: acquiring parameters for speed regulation control of a server fan and initializing the parameters;
starting a test, and acquiring and storing log data of the fan speed regulation control according to a preset time interval;
calculating the change of the rotating speed of the fan and the change of the temperature of the fan according to the log data;
and according to the change of the rotating speed of the fan, if the temperature change of the controlled device is detected to be larger than a target threshold, adjusting a data value corresponding to the parameter according to the sensitivity, the log data and the last adjustment output parameter until the temperature change of the controlled device is smaller than or equal to the target threshold.
In one possible design, in calculating the temperature change of the controlled device on the server according to the log data, the method includes:
and acquiring temperature log data of the controlled device, and calculating a difference value between a data value corresponding to the current time of the temperature log data and a data value corresponding to the last time of the temperature log data.
In one possible design, further comprising:
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold, detecting whether the test time is greater than a preset time threshold, and if the test time is greater than the preset time threshold, stopping setting.
In one possible design, after detecting whether the test time is greater than a preset time threshold, the method further includes:
if the detection test time is less than or equal to the preset time threshold value, the method is implemented
Respectively detecting the parameters and the data values corresponding to the log data continuously;
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold and the test time is greater than a preset time threshold, stopping setting.
In a possible design, if it is detected that the temperature variation of the controlled device is greater than a target threshold value according to the variation of the fan rotation speed, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and a parameter output last time until the temperature variation of the controlled device is less than or equal to the target threshold value includes:
if the detected fan rotating speed change meets the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the target threshold value;
if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, if the temperature change of the controlled device is detected to be less than or equal to a target threshold value and the test time is detected to be greater than a preset time threshold value, stopping setting; and the first setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In a possible design, if it is detected that the temperature variation of the controlled device is greater than a target threshold value according to the variation of the fan rotation speed, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and a parameter output last time until the temperature variation of the controlled device is less than or equal to the target threshold value includes:
if the detected fan rotating speed change does not meet the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the target threshold value;
if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a second setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, if the temperature change of the controlled device is detected to be less than or equal to a target threshold value and the test time is detected to be greater than a preset time threshold value, stopping setting; and the second setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In one possible design, further comprising:
and respectively obtaining the temperature log data of the controlled device and the change curve of the rotating speed of the fan along with the time according to the time, the temperature log data of the controlled device and the rotating speed of the fan.
In a second aspect, the present invention provides a device for regulating speed of a server fan, including:
the acquisition module is used for acquiring the parameters of the server fan speed regulation control and initializing the parameters;
the obtaining module is used for starting a test, and obtaining and storing the log data of the fan speed regulation control according to a preset time interval;
the calculation module is used for calculating the rotating speed change of the fan and the temperature change of a controlled device on the server according to the log data;
and the detection module is used for adjusting the output parameters according to the sensitivity, the log data and the last adjustment if the temperature change of the controlled device is detected to be larger than the target threshold value according to the rotating speed change of the fan, and adjusting the data values corresponding to the parameters until the temperature change of the controlled device is smaller than or equal to the target threshold value.
In one possible design, calculating a temperature change of a controlled device on a server according to the log data includes:
and acquiring temperature log data of the controlled device, and calculating a difference value between a data value corresponding to the current time of the temperature log data and a data value corresponding to the last time of the temperature log data.
In one possible design, further comprising:
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold, detecting whether the test time is greater than a preset time threshold, and if the test time is greater than the preset time threshold, stopping setting.
In one possible design, after detecting whether the test time is greater than a preset time threshold, the method further includes:
if the detection test time is less than or equal to the preset time threshold value, the method is implemented
Respectively detecting the parameters and the data values corresponding to the log data continuously;
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold and the test time is greater than a preset time threshold, stopping setting.
In a possible design, if it is detected that the temperature variation of the controlled device is greater than a target threshold value according to the variation of the fan rotation speed, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and a parameter output last time until the temperature variation of the controlled device is less than or equal to the target threshold value includes:
if the detected fan rotating speed change meets the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the target threshold value;
if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, if the temperature change of the controlled device is detected to be less than or equal to a target threshold value and the test time is detected to be greater than a preset time threshold value, stopping setting; and the first setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In a possible design, if it is detected that the temperature variation of the controlled device is greater than a target threshold value according to the variation of the fan rotation speed, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and a parameter output last time until the temperature variation of the controlled device is less than or equal to the target threshold value includes:
if the detected fan rotating speed change does not meet the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the target threshold value;
if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a second setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, if the temperature change of the controlled device is detected to be less than or equal to a target threshold value and the test time is detected to be greater than a preset time threshold value, stopping setting; and the second setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In one possible design, further comprising:
and respectively obtaining the temperature log data of the controlled device and the change curve of the rotating speed of the fan along with the time according to the time, the temperature log data of the controlled device and the rotating speed of the fan.
In a third aspect, an embodiment of the present invention provides a system for regulating speed of a server fan, including: the device comprises a memory and a processor, wherein the memory stores executable instructions of the processor; wherein the processor is configured to perform the method of server fan throttling of any of the first aspect via execution of the executable instructions.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for server fan throttling according to any one of the first aspect.
The invention provides a method, a device and a system for regulating the speed of a server fan, wherein the method comprises the following steps: acquiring parameters for speed regulation control of a server fan and initializing the parameters; starting a test, and acquiring and storing log data of fan speed regulation control according to a preset time interval; calculating the change of the rotating speed of the fan and the temperature change of a controlled device on the server according to the log data; and according to the change of the rotating speed of the fan, if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting the output parameters according to the sensitivity, the log data and the last adjustment, and adjusting the data values corresponding to the parameters until the temperature change of the controlled device is smaller than or equal to the target threshold. The problem that the traditional PID setting process depends on experience is solved, automatic analysis and efficient processing of PID fan speed regulation are achieved, the setting process is digitalized and graphical, the intuitiveness of PID fan speed regulation and setting is improved, the setting efficiency is improved, adaptation to different servers can be achieved, and the wide usability is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for regulating a speed of a server fan according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a server fan speed regulation method according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a portion of a method for server fan throttling according to a third embodiment of the present invention;
FIG. 4 is a flowchart of a portion of a method for server fan throttling according to a fourth embodiment of the present invention;
fig. 5(a) is a first curve diagram of a method for adjusting a speed of a server fan according to a fifth embodiment of the present invention;
fig. 5(b) is a second curve diagram in the method for adjusting the speed of the server fan according to the fifth embodiment of the present invention;
fig. 5(c) is a third schematic curve diagram in the method for adjusting the speed of the server fan according to the fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a server fan speed regulation device according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a system for regulating speed of a server fan according to a seventh embodiment of the present invention.
Detailed Description
In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, system, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, apparatus, article, or device.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The rotating speed control of the server fan can adopt PID (Proportion Integration Differentiation, calculus) regulation and control at present, the rotating speed of the fan can be continuously increased when the temperature of a server part rises, but the PID regulation and control has the following problems that when the temperature of the server part changes rapidly and the rotating speed of the fan cannot be stable and fixed, the rotating speed is easy to fluctuate, and because the log data volume of the fan rotating speed control is very large, manual analysis and setting of PID parameters are easy to make mistakes, the required working time is long, manual and experience are also needed for regulating and controlling setting parameters, and finally, the rotating speed of the fan cannot be kept stable under any condition. Therefore, in order to meet the heat dissipation requirement of the server, the invention provides the method for regulating the speed of the server fan, the problem of depending on experience in the traditional PID setting process can be solved, the automatic analysis and the efficient processing of the PID fan speed regulation are realized, the setting process is digitalized and graphical, the intuitiveness of the PID fan speed regulation and setting is improved, the setting efficiency is improved, the adaption to different servers can be realized, and the wide usability is realized.
Fig. 1 is a flowchart of a server fan speed regulation method according to an embodiment of the present invention, and as shown in fig. 1, the server fan speed regulation method according to the embodiment may include:
and S101, acquiring parameters for speed regulation control of the server fan and initializing the parameters.
Specifically, the server fan speed control system uses a PID (proportional integral derivative) to realize fan speed control by using a plurality of parameters such as a proportional Kp, an integral Ki, and a derivative Kd.
In this embodiment, the matlab is adopted to realize the serial port data access of the server, wherein the serial port data includes various control data values for controlling the speed regulation of the fan. The server fan speed control system obtains parameters Kp, Ki, Kd, time t, and the like, initializes each parameter, and obtains a data value corresponding to the parameter, for example, the initialization time t is 0. In this embodiment, the initialization data values of the parameters Kp, Ki, Kd, and the like are not specifically limited, and those skilled in the art may limit the initialization data values according to actual situations or differently configured servers, so as to achieve a better effect.
And S102, starting a test, and acquiring and storing the log data of the fan speed regulation control according to a preset time interval.
In this embodiment, the server fan speed control system loads components such as a CPU, starts a test, and obtains and stores log data of fan speed control, where the log data may include a CPU (Central Processing Unit) temperature, a tmax (temperature margin, which refers to a difference between a maximum allowable temperature and an actual temperature), a memory temperature, a PCH (integrated south bridge of intel corporation) temperature, a fan speed, and a FanDuty (a fan duty ratio, which refers to a ratio of time of the fan power-on rotation to total time of the power-on); and the fan speed has a mapping relation with FanDuty. The log data are automatically input into the serial port, the server fan speed regulating system samples every two seconds and stores the log data in real time through matlab. The preset time interval is not limited in this embodiment, and for example, the preset time interval may be two seconds.
And S103, calculating the rotation speed change of the fan and the temperature change of a controlled device on the server according to the log data.
In this embodiment, the server fan speed control system detects parameters such as Kp, Ki, and Kd, and data values corresponding to the log data, respectively, in real time. The server fan speed regulation system can calculate the temperature of a controlled device on the server according to the actual running condition of the server, wherein the temperature of the controlled device can comprise any one or more of log data such as CPU temperature, memory temperature, PCH temperature and the like. For example, the temperature change of the CPU and the rotating speed change of the fan are detected in real time, so that a better setting effect is achieved. In this embodiment, the server fan speed regulation system may detect the fan speed and the temperature of the controlled device at each moment, and know the change of the fan speed and the change of the temperature of the controlled device in real time, where the change of the fan speed may be the change of the fan speed at the current moment and the fan speed at the previous moment; the temperature change of the controlled device can be the change condition of the temperature of the controlled device at the current moment and the temperature of the controlled device at the last moment, or the temperature change of the controlled device particularly refers to the temperature of the controlled device at the current moment, so that the automatic analysis and the high-efficiency processing of the speed regulation of the PID fan are realized, and the setting efficiency is improved.
And S104, according to the change of the rotating speed of the fan, if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting the output parameters according to the sensitivity, the log data and the last adjustment, and adjusting the data values corresponding to the parameters until the temperature change of the controlled device is smaller than or equal to the target threshold.
In this embodiment, the server fan speed control system detects the data values corresponding to the parameters and the log data in real time, and can detect the change of the fan speed and the temperature change of the controlled device in real time. According to the change of the fan rotating speed, for example, the current fan rotating speed is greater than or equal to the last fan rotating speed, if the temperature change of the controlled device is detected to be greater than the target threshold value, the output parameters (for example, the output parameters are adjusted according to the sensitivity, the log data and the last time)
c represents current parameter adjustment), and adjusting the data value corresponding to the parameter until the temperature change of the controlled device is less than or equal to the target threshold. Specifically, according to the actual operation condition of the server, the sensitivity, log data and parameters output by last adjustment are used for specifically adjusting data values corresponding to the parameters by using different setting formulas, and then the test is continued so that the temperature change of the controlled device is smaller than or equal to the target threshold. The temperature change of the controlled device especially refers to the temperature of the controlled device at the current moment.
In this embodiment, the target threshold is not limited, for example, the target threshold may be 75 ° (i.e., the target threshold corresponding to the temperature of the controlled device of the CPU). In an alternative embodiment, the target threshold varies according to a variation of a controlled device in an actual operation condition of the server, for example, the controlled device may be any one or any more of a CPU, a memory, and a PCH, and the target threshold may be any one or any more of a CPU temperature, a memory temperature, and a PCH temperature. The sensitivity can be determined by multiple tests according to the fan rotating speed corresponding to the temperature target threshold of the controlled device.
The embodiment realizes the automatic analysis and the high-efficiency processing of the speed regulation of the PID fan, improves the setting efficiency, can also realize the adaptation to different servers, and has wide usability.
In an alternative embodiment, calculating the temperature change of the controlled device on the server according to the log data includes: and acquiring temperature log data of the controlled device, and calculating the difference value between the data value corresponding to the current moment of the temperature log data and the data value corresponding to the last moment of the temperature log data.
Specifically referring to fig. 2, fig. 2 is a schematic diagram of a server fan speed regulation method according to a second embodiment of the present invention. The controlled device can comprise a CPU, an internal memory or a PCH and the like, a test is started in the fan speed regulating system of the server, and log data of fan speed regulating control is obtained and stored according to a preset time interval;
as shown in fig. 2, the temperature change of the controlled device is also calculated according to the log data, and the following formula is adopted: and e (i) ═ T (i) -T (i-1) calculating the difference between the data value corresponding to the current time of the temperature log data and the data value corresponding to the previous time of the temperature log data. Wherein e (i) represents a difference value of the temperature log data, T (i) represents a data value corresponding to the current time of the temperature log data, and T (i-1) represents a data value corresponding to the previous time of the temperature log data.
In an optional embodiment, the method further includes detecting whether the test time is greater than a preset time threshold if a data value corresponding to the temperature log data of the controlled device is less than or equal to a target threshold, and stopping the setting if the test time is greater than the preset time threshold.
Referring specifically to fig. 2, if the server fan speed control system detects a temperature change of the controlled device, the temperature of the controlled device may include any one or more of a CPU temperature, a memory temperature, and a PCH temperature. For example, the temperature of the controlled device is the CPU temperature, if the data value corresponding to the detected CPU temperature log data is greater than or equal to the target threshold (for example, 75 °), the real-time test time is detected, and if the test time is greater than the preset time threshold, the setting is stopped. The preset time threshold is not limited in this embodiment, and for example, the preset time threshold may be 3600 s.
In an alternative embodiment, referring to fig. 2, after detecting whether the test time is greater than the preset time threshold, the method further includes: if the detection test time is less than or equal to the preset time threshold, respectively continuing to detect the parameters and the data values corresponding to the log data; and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold and the test time is greater than the preset time threshold, stopping setting.
In this embodiment, if the detection test time of the server fan speed control system is less than or equal to the preset time threshold, for example, the preset time threshold is 3600s, the data values corresponding to the parameters such as Kp, Ki, Kd, and the log data respectively are continuously detected. If the data value corresponding to the temperature log data of the controlled device (such as the temperature of the CPU) is less than or equal to the target threshold value and the real-time test time is greater than the preset time threshold value, stopping setting; wherein the target threshold may be 75 °.
In an alternative embodiment, the method for server fan throttling may include:
s201, obtaining parameters for speed regulation control of a server fan and initializing the parameters.
S202, starting a test, and acquiring and storing log data of fan speed regulation control according to a preset time interval.
And S203, calculating the rotation speed change of the fan and the temperature change of the controlled device on the server according to the log data.
In this embodiment, please refer to the relevant description in step S101 to step S103 in the method shown in fig. 1 for the specific implementation process and technical principle of step S201 to step S203 (not shown), which is not described herein again.
And S204, according to the change of the rotating speed of the fan, if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting the output parameters according to the sensitivity, the log data and the last adjustment, and adjusting the data values corresponding to the parameters until the temperature change of the controlled device is smaller than or equal to the target threshold.
Referring to fig. 3 in particular, fig. 3 is a flowchart of a part of a method for regulating speed of a server fan according to a third embodiment of the present invention, as shown in fig. 3, step S204 may include step S2041, step S2042, and step S2043.
S2041, if the change of the rotating speed of the fan is detected to meet a preset condition, judging whether the temperature change of a controlled device is smaller than or equal to a target threshold value;
s2042, if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or S2043, if the temperature change of the controlled device is detected to be less than or equal to the target threshold value and the test time is detected to be greater than the preset time threshold value, stopping setting; the first setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In this embodiment, the controlled device temperature may include any one or more of a CPU temperature, a memory temperature, and a PCH temperature, for example, the controlled device temperature may be the CPU temperature. The system for regulating the speed of the server fan detects and judges the temperature of the CPU and the FanDuty respectively; if the detected fan speed variation satisfies the preset condition, the fan speed and FanDuty have a corresponding mapping relationship. For example, if it is detected that the current time FanDuty (i) is greater than the previous time FanDuty (i-1), the predetermined condition is satisfied: and if FanDuty (i) is greater than or equal to FanDuty (i-1), judging whether the temperature change of the controlled device is less than or equal to a target threshold value. The temperature change of the controlled device especially refers to the temperature of the controlled device at the current moment, for example, the temperature of the controlled device is the CPU temperature and the CPU temperature at the current moment is less than 75 °.
If the temperature change of the controlled device is detected to be larger than a target threshold value, for example, the temperature of the CPU is larger than 75 degrees, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold value; the first setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In this embodiment, the difference of the temperature log data of the controlled device is obtained by using equation (1), and e (i) ═ T (i) — T (i-1) (1). The first tuning formula comprises the formulas (2), (3), (4), i.e.
Where c represents the current parameter adjustment and c-1 represents the last parameter adjustment. The sensitivity n is determined according to the temperature log data of the controlled device, which is less than or equal to the target threshold (Ttarget), and the corresponding fan speed through multiple tests, that is, n is fanduty (Ttarget)/100, and can be obtained before the current setting. For example, if the CPU temperature is greater than 75 °, adjusting data values corresponding to parameters such as Kp, Ki, Kd, and the like according to the first setting formula, and continuing the test iteration until the data value corresponding to the CPU temperature at the current time is less than or equal to 75 °, and when it is detected that the test time is greater than a preset time threshold, for example, the test time is greater than 3600s, stopping the setting.
The embodiment adopts the sensitivity n to adapt to different servers, and has wide usability.
Or, in this embodiment, if the system for server fan speed regulation detects that the temperature change of the controlled device (for example, the CPU temperature) is less than or equal to 75 °, that is, the target threshold is met, and detects that the test time is greater than 3600s, the setting is stopped.
The embodiment solves the problem that the traditional PID setting process depends on experience, realizes automatic analysis and efficient processing of PID fan speed regulation, and improves the setting efficiency.
In one possible embodiment, a method for server fan throttling may include:
s301, obtaining parameters for speed regulation control of the server fan and initializing the parameters.
And S302, starting a test, and acquiring and storing the log data of the fan speed regulation control according to a preset time interval.
And S303, calculating the rotation speed change of the fan and the temperature change of a controlled device on the server according to the log data.
In this embodiment, please refer to the relevant description in step S101 to step S103 in the method shown in fig. 1 for the specific implementation process and technical principle of step S301 to step S303 (not shown), which is not described herein again.
S304, according to the change of the rotating speed of the fan, if the detected temperature change of the controlled device is larger than the target threshold, adjusting the output parameters according to the sensitivity, the log data and the last adjustment, and adjusting the data values corresponding to the parameters until the temperature change of the controlled device is smaller than or equal to the target threshold. Referring to fig. 4 specifically, fig. 4 is a flowchart of a part of a method for speed regulation of a server fan according to a fourth embodiment of the present invention, as shown in fig. 4, step S304 may include step S3041, step S3042, and step S3043.
S3041, if the detected fan rotating speed change does not meet the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to a target threshold value;
s3042, if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a second setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, S3043, if it is detected that the temperature change of the controlled device is less than or equal to the target threshold and the test time is greater than the preset time threshold, stopping setting; and the second setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In this embodiment, the difference of the temperature log data of the controlled device is obtained by using equation (1), and e (i) ═ T (i) — T (i-1) (1). The second tuning formula comprises formulas (5), (6), (7), i.e.
Where c represents the current parameter adjustment and c-1 represents the last parameter adjustment. The sensitivity n is determined according to the temperature variation of the controlled device less than or equal to the target threshold (Ttarget) and the corresponding fan speed through multiple tests, namely n is fanduty (Ttarget)/100, and can be obtained before the current setting. The temperature change of the controlled device especially refers to the temperature of the controlled device at the current moment. For example, if the CPU temperature is greater than 75 °, adjusting data values corresponding to parameters Kp, Ki, Kd, and the like according to the second setting formula, and continuing test iteration until the CPU temperature is less than or equal to 75 ° and the test time is greater than the preset timeAnd stopping setting when the test time is more than 3600 s.
Or, in this embodiment, if the system for adjusting the speed of the server fan detects that the temperature change of the controlled device (for example, the CPU temperature at the current time) is less than or equal to 75 °, and detects that the test time is greater than 3600s, the setting is stopped.
The embodiment solves the problem that the traditional PID setting process depends on experience, realizes automatic analysis and efficient processing of PID fan speed regulation, and improves the setting efficiency.
In an optional embodiment, the method further includes obtaining the change curves of the temperature log data of the controlled device and the fan speed with time according to the time, the temperature log data of the controlled device and the fan speed.
Referring to fig. 5(a), fig. 5(b), and fig. 5(c) in this embodiment, fig. 5(a) is a first curve diagram in a method for regulating speed of a server fan according to a fifth embodiment of the present invention, fig. 5(b) is a second curve diagram in the method for regulating speed of a server fan according to the fifth embodiment of the present invention, and fig. 5(c) is a third curve diagram in the method for regulating speed of a server fan according to the fifth embodiment of the present invention. The controlled device temperature in this embodiment may include any one or more of a CPU temperature, a memory temperature, and a PCH temperature. Fig. 5(a) shows a first curve of the fan speed with time, fig. 5(b) shows a second curve of the fan speed with time, and fig. 5(c) shows a curve of the temperature with time, wherein the controlled device temperature may include any one or more of the CPU temperature, the memory temperature, and the PCH temperature, and each temperature may be adjusted to the curve shown in fig. 5(c) in response to the change. In the embodiment, the response change of the log data in the setting process is subjected to curve imaging, so that the intuitiveness of the PID fan speed regulation setting is improved, the transient response of the server fan speed regulation system is favorably controlled, the interference suppression power of the system is improved, and the setting efficiency is improved.
Fig. 6 is a schematic structural diagram of a server fan speed regulation device according to a sixth embodiment of the present invention, and as shown in fig. 6, the server fan speed regulation device according to the present embodiment may include:
the acquisition module 21 is used for acquiring parameters for speed regulation control of the server fan and initializing the parameters;
an obtaining module 22, configured to start a test, and obtain and store log data for fan speed regulation control at preset time intervals;
the calculation module 23 is used for calculating the change of the rotating speed of the fan and the change of the temperature of the fan according to the log data;
and the detection module 24 is configured to, according to the change of the rotation speed of the fan, if it is detected that the temperature change of the controlled device is greater than the target threshold, adjust the output parameter according to the sensitivity, the log data, and the last adjustment, and adjust the data value corresponding to the parameter until the temperature change of the controlled device is less than or equal to the target threshold.
In an optional embodiment, the calculating, according to the log data, a temperature change of the controlled device on the server further includes:
and acquiring temperature log data of the controlled device, and calculating the difference value between the data value corresponding to the current moment of the temperature log data and the data value corresponding to the last moment of the temperature log data.
In an optional embodiment, further comprising:
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold, detecting whether the test time is greater than a preset time threshold, and if the test time is greater than the preset time threshold, stopping setting.
In an optional embodiment, after detecting whether the test time is greater than the preset time threshold, the method further includes:
if the detection test time is less than or equal to the preset time threshold value, the method is implemented
Respectively detecting data values corresponding to the parameters and the log data continuously;
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the target threshold and the test time is greater than the preset time threshold, stopping setting.
In an optional embodiment, if it is detected that the temperature variation of the controlled device is greater than the target threshold value according to the variation of the fan rotation speed, adjusting the output parameter according to the sensitivity, the log data and the last time, and adjusting the data value corresponding to the parameter until the temperature of the controlled device is less than or equal to the target threshold value, the method includes:
if the detected fan rotating speed change meets the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to a target threshold value;
if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, if the temperature change of the controlled device is detected to be less than or equal to the target threshold value and the test time is detected to be greater than the preset time threshold value, stopping setting; the first setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In an optional embodiment, if it is detected that the temperature variation of the controlled device is greater than the target threshold value according to the variation of the fan rotation speed, adjusting the output parameter according to the sensitivity, the log data and the last time, and adjusting the data value corresponding to the parameter until the temperature variation of the controlled device is less than or equal to the target threshold value, the method includes:
if the detected fan rotating speed change does not meet the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to a target threshold value or not;
if the temperature change of the controlled device is detected to be larger than the target threshold, adjusting the data value corresponding to the parameter according to a second setting formula, and continuing test iteration until the temperature change of the controlled device is smaller than or equal to the target threshold;
or, if the temperature change of the controlled device is detected to be less than or equal to the target threshold value and the test time is detected to be greater than the preset time threshold value, stopping setting; and the second setting formula is obtained according to the difference value of the temperature log data of the controlled device.
In an optional embodiment, further comprising:
and respectively obtaining the change curves of the temperature log data of the controlled device and the fan rotating speed along with the time according to the time, the temperature log data of the controlled device and the fan rotating speed.
The device for adjusting the speed of the server fan in this embodiment may execute the technical solutions in the methods shown in fig. 1 to 4, and the specific implementation processes and technical principles thereof refer to the relevant descriptions in the methods shown in fig. 1 to 4, which are not described herein again.
Fig. 7 is a schematic structural diagram of a server fan speed regulation system according to a seventh embodiment of the present invention, and as shown in fig. 7, the server fan speed regulation system 30 of this embodiment may include: a processor 31 and a memory 32.
A memory 32 for storing computer programs (such as application programs, functional modules, and the like implementing the method for regulating the fan speed of the server), computer instructions, and the like;
the computer programs, computer instructions, etc. described above may be stored in one or more memories 32 in partitions. And the above-mentioned computer program, computer instructions, data, etc. can be called by the processor 31.
A processor 31 for executing the computer program stored in the memory 32 to implement the steps of the method according to the above embodiments.
Reference may be made in particular to the description relating to the preceding method embodiment.
The processor 31 and the memory 32 may be separate structures or may be integrated structures integrated together. When the processor 31 and the memory 32 are separate structures, the memory 32 and the processor 31 may be coupled by a bus 33.
The server in this embodiment may execute the technical solutions in the methods shown in fig. 1 to fig. 4, and the specific implementation processes and technical principles thereof refer to the relevant descriptions in the methods shown in fig. 1 to fig. 4, which are not described herein again.
In addition, an embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when at least one processor of the user equipment executes the computer-executable instructions, the user equipment executes the above-mentioned various possible apparatuses.
Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in a communication device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described apparatus embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When the program is executed, the steps of the embodiments of the device are executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A method for regulating speed of a server fan is characterized by comprising the following steps:
acquiring parameters for speed regulation control of a server fan and initializing the parameters;
starting a test, and acquiring and storing log data of the fan speed regulation control according to a preset time interval;
calculating the change of the rotating speed of the fan and the temperature change of a controlled device on the server according to the log data;
according to the change of the rotating speed of the fan, if the temperature change of the controlled device is detected to be larger than a first target threshold, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and the last adjustment output parameter until the temperature change of the controlled device is smaller than or equal to the first target threshold; wherein the sensitivity is determined by the fan speed corresponding to the second target threshold;
wherein, according to the log data, calculating the temperature change of the controlled device on the server comprises:
acquiring temperature log data of the controlled device, and calculating a difference value between a data value corresponding to the current time of the temperature log data and a data value corresponding to the last time of the temperature log data;
wherein, according to the change of the rotating speed of the fan, if it is detected that the temperature change of the controlled device is greater than a first target threshold, adjusting the data value corresponding to the parameter according to the sensitivity, the log data and the last parameter adjustment output until the temperature change of the controlled device is less than or equal to the first target threshold, including:
if the detected fan rotating speed change meets the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the first target threshold value;
if the temperature change of the controlled device is detected to be larger than the first target threshold, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing to perform test iteration until the temperature change of the controlled device is smaller than or equal to the first target threshold, wherein the first setting formula is obtained according to the sensitivity, the parameter output by last adjustment and the difference value of the temperature log data;
or, if the temperature change of the controlled device is detected to be less than or equal to a first target threshold value and the test time is detected to be greater than a preset time threshold value, stopping setting;
or according to the change of the rotating speed of the fan, if the detected temperature change of the controlled device is greater than a first target threshold, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and the last parameter adjustment output until the temperature change of the controlled device is less than or equal to the first target threshold, including:
if the detected fan rotating speed change does not meet the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the first target threshold value;
if the temperature change of the controlled device is detected to be larger than the first target threshold, adjusting a data value corresponding to the parameter according to a second setting formula, and continuing to perform test iteration until the temperature change of the controlled device is smaller than or equal to the first target threshold, wherein the second setting formula is obtained according to the sensitivity, the parameter output by last adjustment and the difference value of the temperature log data;
or, if the temperature change of the controlled device is detected to be less than or equal to a first target threshold value and the test time is detected to be greater than a preset time threshold value, the setting is stopped.
2. The method of claim 1, further comprising:
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the second target threshold, detecting whether the test time is greater than a preset time threshold, and if the test time is greater than the preset time threshold, stopping setting.
3. The method of claim 2, wherein after detecting whether the test time is greater than the preset time threshold after the data value corresponding to the temperature log data of the controlled device is less than or equal to the second target threshold, the method further comprises:
if the detection test time is less than or equal to the preset time threshold value, the method is implemented
Respectively detecting the parameters and the data values corresponding to the log data continuously;
and if the data value corresponding to the temperature log data of the controlled device is less than or equal to the second target threshold and the test time is greater than a preset time threshold, stopping setting.
4. The method of claim 1, further comprising:
and respectively obtaining the temperature log data of the controlled device and the change curve of the rotating speed of the fan along with the time according to the time, the temperature log data of the controlled device and the rotating speed of the fan.
5. A device for regulating the speed of a server fan is characterized by comprising:
the acquisition module is used for acquiring the parameters of the server fan speed regulation control and initializing the parameters;
the obtaining module is used for starting a test, and obtaining and storing the log data of the fan speed regulation control according to a preset time interval;
the calculation module is used for calculating the rotating speed change of the fan and the temperature change of a controlled device on the server according to the log data;
the detection module is used for adjusting the data value corresponding to the parameter according to the sensitivity, the log data and the last adjustment output parameter if the detected temperature change of the controlled device is larger than a first target threshold value according to the rotation speed change of the fan until the temperature change of the controlled device is smaller than or equal to the first target threshold value; wherein the sensitivity is determined by the fan speed corresponding to the second target threshold;
wherein, according to the log data, calculating the temperature change of the controlled device on the server comprises:
acquiring temperature log data of the controlled device, and calculating a difference value between a data value corresponding to the current time of the temperature log data and a data value corresponding to the last time of the temperature log data;
wherein, according to the change of the rotating speed of the fan, if it is detected that the temperature change of the controlled device is greater than a first target threshold, adjusting the data value corresponding to the parameter according to the sensitivity, the log data and the last parameter adjustment output until the temperature change of the controlled device is less than or equal to the first target threshold, including:
if the detected fan rotating speed change meets the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the first target threshold value;
if the temperature change of the controlled device is detected to be larger than the first target threshold, adjusting a data value corresponding to the parameter according to a first setting formula, and continuing to perform test iteration until the temperature change of the controlled device is smaller than or equal to the first target threshold, wherein the first setting formula is obtained according to the sensitivity, the parameter output by last adjustment and the difference value of the temperature log data;
or, if the temperature change of the controlled device is detected to be less than or equal to a first target threshold value and the test time is detected to be greater than a preset time threshold value, stopping setting;
or according to the change of the rotating speed of the fan, if the detected temperature change of the controlled device is greater than a first target threshold, adjusting a data value corresponding to a parameter according to the sensitivity, the log data and the last parameter adjustment output until the temperature change of the controlled device is less than or equal to the first target threshold, including:
if the detected fan rotating speed change does not meet the preset condition, judging whether the temperature change of the controlled device is smaller than or equal to the first target threshold value;
if the temperature change of the controlled device is detected to be larger than the first target threshold, adjusting a data value corresponding to the parameter according to a second setting formula, and continuing to perform test iteration until the temperature change of the controlled device is smaller than or equal to the first target threshold, wherein the second setting formula is obtained according to the sensitivity, the parameter output by last adjustment and the difference value of the temperature log data;
or stopping setting if the temperature change of the controlled device is detected to be less than or equal to a first target threshold and the test time is detected to be greater than a preset time threshold.
6. A system for server fan throttling, comprising: the device comprises a memory and a processor, wherein the memory stores executable instructions of the processor; wherein the processor is configured to perform the method of server fan throttling of any of claims 1-4 via execution of the executable instructions.
7. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of server fan throttling of any one of claims 1 to 4.
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| CN111255726B (en) * | 2020-03-03 | 2022-03-25 | 上海度普新能源科技有限公司 | Fan control method and device |
| CN112746983B (en) * | 2021-01-13 | 2022-07-12 | 苏州浪潮智能科技有限公司 | Fan rotating speed compensation method, system and medium |
| CN113138899B (en) * | 2021-04-27 | 2023-01-24 | 山东英信计算机技术有限公司 | Server fan vibration management and control method, system, terminal and storage medium |
| CN113408718B (en) * | 2021-06-07 | 2024-05-31 | 厦门美图之家科技有限公司 | Device processor selection method, system, terminal device and storage medium |
| CN114296495B (en) * | 2021-11-30 | 2023-02-28 | 科华数据股份有限公司 | Temperature control method, control equipment and temperature control system |
| CN114320970B (en) * | 2021-12-31 | 2023-09-22 | 浪潮(北京)电子信息产业有限公司 | Fan abnormality early warning method, device, equipment and medium |
| CN115113464B (en) * | 2022-08-29 | 2022-11-18 | 滁州市大眼橙数字科技有限公司 | Method and device for controlling rotating speed of projector fan |
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