CN109185209B - Fan rotating speed adjusting method and device - Google Patents
Fan rotating speed adjusting method and device Download PDFInfo
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- CN109185209B CN109185209B CN201811198303.3A CN201811198303A CN109185209B CN 109185209 B CN109185209 B CN 109185209B CN 201811198303 A CN201811198303 A CN 201811198303A CN 109185209 B CN109185209 B CN 109185209B
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 230000009467 reduction Effects 0.000 claims abstract description 21
- 230000008859 change Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
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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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- 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
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
Abstract
The application discloses a method for adjusting the rotating speed of a fan, which comprises the following steps: acquiring fan states corresponding to all fans in a storage system and current temperature values corresponding to all temperature sensors; the fan state comprises an availability identification for representing whether the fan is available and a fan rotating speed; for each temperature sensor, respectively calculating the rotating speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor is changed into a target value, and taking the available fan with the minimum rotating speed increase as a target fan of the temperature sensor; and adjusting the rotating speed of the target fan according to the rotating speed of the target fan which needs to be increased so as to realize the cooling and noise reduction of the storage system. The method can realize the cooling of the storage system by a small rotating speed increment, and because the rotating speed required to be increased by the target fan is the minimum, the noise can be reduced, namely the cooling and the noise reduction of the storage system are realized at the same time. The application also discloses a fan rotating speed adjusting device.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a method and an apparatus for adjusting a rotation speed of a fan.
Background
Under the stream of big data and cloud computing, the importance of data storage is increasingly highlighted. From the present, full flash products are a necessary trend in the development of storage systems. But with the increase in access speed comes problems with heat dissipation. The problems of concentrated heating and overheating and falling speed are common defects which are difficult to overcome by flash memory products, and therefore an air cooling mechanism is generally adopted in a storage system to cool the storage system.
The air cooling mechanism is used for cooling through an air cooling radiator or a radiating fan. However, the fan generates noise during operation, and for this reason, the rotation speed of the fan needs to be adjusted to cool the storage system and reduce noise.
The present invention relates to a fan speed adjusting method, and more particularly, to a fan speed adjusting method for adjusting a fan speed of a storage system, which adjusts the fan speed of the storage system as a whole, for example, increasing the fan speed or decreasing the fan speed simultaneously.
Disclosure of Invention
In view of this, the present application provides a method for adjusting a rotation speed of a fan, which is configured to determine, for each temperature sensor, a rotation speed at which a fan most sensitive to the temperature sensor changes the current temperature value of the temperature sensor to a target value and needs to be increased, and adjust the rotation speed of the fan accordingly to achieve cooling and noise reduction of a storage system. Correspondingly, the application also provides a fan rotating speed adjusting device.
The first aspect of the present application provides a method for adjusting a rotation speed of a fan, where the method includes:
acquiring fan states corresponding to all fans in a storage system and current temperature values corresponding to all temperature sensors; the fan state comprises an availability identification for representing whether the fan is available and a fan rotating speed;
for each temperature sensor, respectively calculating the rotating speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor is changed into a target value, and taking the available fan with the minimum rotating speed increase as a target fan of the temperature sensor;
and adjusting the rotating speed of the target fan according to the rotating speed of the target fan which needs to be increased so as to realize the cooling and noise reduction of the storage system.
Optionally, the method further includes:
if the target fans corresponding to the at least two temperature sensors are the same, taking the maximum value of the rotating speed of the target fan, which needs to be increased, corresponding to each temperature sensor in the at least two temperature sensors as the rotating speed increment of the target fan;
adjusting the rotation speed of the target fan according to the rotation speed of the target fan to be increased comprises:
and adjusting the rotating speed of the target fan according to the rotating speed increment of the target fan.
Optionally, the rotating speed of the target fan is adjusted according to the rotating speed of the target fan that needs to be increased:
determining the final rotating speed of the target fan according to the rotating speed of the target fan and the rotating speed of the target fan needing to be increased;
and outputting the pulse corresponding to the final rotating speed of the target fan to an input pin of the target fan to realize the rotating speed adjustment of the target fan.
Optionally, the calculating the rotation speed that needs to be increased when each available fan enables the temperature sensor to change from the current temperature value to the target value includes:
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, by using a Proportional Integral Derivative (PID) algorithm.
Optionally, the calculating, by using a PID algorithm, a rotation speed of each available fan, which needs to be increased when the temperature sensor changes from the current temperature value to the target value, includes:
acquiring a fan state of each available fan and the current temperature value and the target value of the temperature sensor;
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, according to a preset PID parameter.
A second aspect of the present application provides a fan speed adjustment apparatus, the apparatus comprising:
the acquisition unit is used for acquiring the fan states corresponding to the fans in the storage system and the current temperature values corresponding to the temperature sensors; the fan state comprises an availability identification for representing whether the fan is available and a fan rotating speed;
a determining unit, configured to calculate, for each temperature sensor, a rotation speed that needs to be increased when each available fan causes the temperature sensor to change from the current temperature value to a target value, and use, as a target fan of the temperature sensor, an available fan with a minimum rotation speed increase;
and the adjusting unit is used for adjusting the rotating speed of the target fan according to the rotating speed of the target fan which needs to be increased so as to realize the cooling and noise reduction of the storage system.
Optionally, the determining unit is further configured to:
if the target fans corresponding to the at least two temperature sensors are the same, taking the maximum value of the rotating speed of the target fan, which needs to be increased, corresponding to each temperature sensor in the at least two temperature sensors as the rotating speed increment of the target fan;
the adjusting unit is specifically configured to:
and adjusting the rotating speed of the target fan according to the rotating speed increment of the target fan.
Optionally, the adjusting unit is specifically configured to:
determining the final rotating speed of the target fan according to the rotating speed of the target fan and the rotating speed of the target fan needing to be increased;
and outputting the pulse corresponding to the final rotating speed of the target fan to an input pin of the target fan to realize the rotating speed adjustment of the target fan.
Optionally, the determining unit includes a calculating subunit and a determining subunit, where:
the calculating subunit is specifically configured to calculate, by using a proportional integral derivative PID algorithm, a rotation speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor changes to a target value;
the determining subunit is specifically configured to use an available fan with a minimum rotation speed increase as the target fan of the temperature sensor.
Optionally, the computing subunit is specifically configured to:
acquiring a fan state of each available fan and the current temperature value and the target value of the temperature sensor;
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, according to a preset PID parameter.
According to the technical scheme, the embodiment of the application has the following advantages:
the embodiment of the application provides a method for adjusting the rotating speed of a fan, in the method, fan states corresponding to fans in a storage system and current temperature values corresponding to temperature sensors are obtained, wherein the fan states comprise availability marks representing whether the fans are available and the rotating speeds of the fans, then each available fan is calculated aiming at each temperature sensor, so that the rotating speed which needs to be increased when the temperature sensor is changed from the current temperature value to a target value is calculated, the available fan with the minimum rotating speed which needs to be increased is the available fan which is most sensitive to the temperature sensor and can be used as a target fan of the temperature sensor, then the rotating speed of the target fan is adjusted according to the rotating speed which needs to be increased of the target fan, the cooling of the storage system can be realized by using a small rotating speed increment, and the rotating speed which needs to be increased of the target fan is minimum, therefore, the noise can be reduced, namely, the temperature reduction and the noise reduction of the storage system are simultaneously realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart illustrating a method for adjusting a rotational speed of a fan according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a fan rotation speed adjusting device according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, 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 application 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, method, system, article, or apparatus 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, method, article, or apparatus.
Aiming at the technical problems that the adjustment effect is not ideal and the requirements of temperature reduction and noise reduction are difficult to be considered at the same time because the fans in the storage system are adjusted as a whole in the prior art, the application provides a fan rotating speed adjustment method, in the method, the fan states corresponding to the fans in the storage system and the current temperature values corresponding to the temperature sensors are obtained, wherein the fan states comprise usability marks representing whether the fans are usable or not and the rotating speeds of the fans, then the rotating speed which needs to be increased when each available fan enables the temperature sensor to be changed from the current temperature value to a target value is calculated for each temperature sensor, the available fan with the minimum rotating speed which needs to be increased is the available fan which is most sensitive to the temperature sensor and can be used as a target fan of the temperature sensor, and then the rotating speed of the target fan is adjusted according to the rotating speed which needs to be increased by the target fan, the cooling of the storage system can be realized by smaller rotating speed increment, and because the rotating speed required to be increased by the target fan is the minimum, the noise can be reduced, namely, the cooling and the noise reduction of the storage system are realized at the same time.
It can be understood that the fan speed adjusting method provided by the embodiment of the present application can be applied to a storage system, and is used for adjusting the fan speed in the storage system, so as to implement cooling and noise reduction of the storage system. The fan speed adjusting method may be stored in a storage system in the form of an application program, and the storage system executes the application program to implement the fan speed adjusting method of the present application. The application program may be a stand-alone application program, or may be a functional module, a plug-in, an applet, or the like integrated with another application program.
In order to make the technical solution of the present application clearer and easier to understand, a method for adjusting a rotating speed of a fan provided in an embodiment of the present application will be described below with reference to the accompanying drawings.
Referring to the flow chart of the fan speed adjustment method shown in fig. 1, the method includes:
s101, obtaining fan states corresponding to all fans in a storage system and current temperature values corresponding to all temperature sensors.
Wherein the fan status includes an availability flag indicating whether the fan is available and a fan speed.
It is understood that the memory system is composed of an integrated circuit, and the integrated circuit needs to dissipate heat to avoid affecting performance during operation, so the memory system is generally provided with a fan for dissipating heat. Specifically, be provided with temperature sensor among the storage system for monitor storage system's temperature, so, can adjust storage system's fan etc. according to temperature sensor's monitoring result to can in time cool down when storage system generates heat, make it normally work.
In this embodiment, the fan states corresponding to the fans in the storage system and the current temperature values corresponding to the temperature sensors are obtained, so that the current heating state of the storage system and the working state of each fan for cooling can be obtained, and the current heating state and the working state of each fan for cooling can be adjusted in a targeted manner.
S102: and respectively calculating the rotating speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor is changed into a target value, aiming at each temperature sensor, and taking the available fan with the minimum rotating speed increase as the target fan of the temperature sensor.
In the case of a storage system, the heating can be characterized by the measured values of the temperature sensors. If the storage system is locally heated seriously, the measured value of the temperature sensor corresponding to the area is represented as high temperature, and the measured values of the temperature sensors corresponding to other areas are represented as normal. When the storage system has the phenomena of serious heating and the like, the temperature can be reduced by increasing the rotating speed of the fan, so that the current temperature value of the temperature sensor is reduced to a target value. The target value may be set based on an empirical value. It should be noted that different target values may be set by different temperature sensors, for example, the target value of the temperature sensor corresponding to the storage unit with higher operating frequency in the storage system may be set relatively lower.
In the embodiment of the application, for each temperature sensor, the rotating speed of each available fan, which is required to be increased when the temperature sensor is changed from the current temperature value to the target value, is calculated, so that the fan most sensitive to the temperature sensor can be determined, and the temperature reduction can be realized at a lower rotating speed. The available fan is a fan with an availability identifier of being available in a fan state, and in the storage system, if the availability identifier of the fan is unavailable, the rotating speed of the fan, which is required to be increased when the temperature sensor is changed from the current temperature value to the target value, does not need to be calculated.
In particular, the fan most sensitive to the temperature sensor is determined by comparing the rotation speed required to be increased when the temperature sensor is changed from the current temperature value to the target value. The fan with the minimum rotating speed required to be increased is the fan which is most sensitive to the temperature sensor and can be used as the target fan of the temperature sensor, so that the target fan can be used as the cooling scheme of the temperature sensor, and when the temperature sensor is cooled, other fans do not increase the rotating speed, so that the effect of increasing the rotating speed at the minimum to reduce the temperature is achieved.
In some possible implementations of the embodiment of the present application, calculating each available fan such that the rotation speed of the temperature sensor to be increased when the current temperature value changes to the target value may be implemented by a proportional-integral-derivative (PID) algorithm. The storage system calculates the required rotational speed of each available fan to raise the temperature sensor from the current temperature value to the target value by using a PID algorithm.
The specific calculation process may be to obtain a fan state of each available fan and the current temperature value and the target value of the temperature sensor; and then calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, according to the preset PID parameters. The PID parameter can be determined in several ways: firstly, theoretically calculating and setting; and II, engineering setting method.
The theoretical calculation and adjustment method mainly determines PID parameters through theoretical calculation according to a mathematical model of a storage system, and the PID parameters obtained by the method are usually required to be adjusted and modified through engineering and then applied to the model. The engineering setting method mainly depends on engineering experience, is directly carried out in the test of the storage system, is simple and easy to master, and is widely adopted in engineering practice. The engineering setting method of PID parameters mainly includes several modes such as critical ratio method, reaction curve method and attenuation method.
S103: and adjusting the rotating speed of the target fan according to the rotating speed of the target fan which needs to be increased so as to realize the cooling and noise reduction of the storage system.
After a target fan corresponding to the temperature sensor is determined, the rotating speed of the target fan is adjusted according to the rotating speed of the target fan needing to be increased, so that the storage system is cooled and the noise is reduced.
In the embodiment of the application, if the target fans corresponding to the temperature sensors are different, the rotating speeds of the corresponding target fans are respectively adjusted according to the rotating speeds which are required to be increased by the target fans corresponding to the temperature sensors, so that the cooling and noise reduction of the storage system are realized. If the target fans corresponding to the at least two temperature sensors are the same, taking the maximum value of the rotating speed of the target fan, which needs to be increased, corresponding to each temperature sensor in the at least two temperature sensors as the rotating speed increment of the target fan; the target fan speed may be adjusted based on the target fan speed increment when the target fan speed is adjusted.
It should be noted that, when the rotation speed of the target fan is adjusted, the final rotation speed of the target fan may be determined according to the fan rotation speed of the target fan and the rotation speed of the target fan that needs to be increased; and then outputting the pulse corresponding to the final rotating speed of the target fan to an input pin of the target fan to realize the rotating speed adjustment of the target fan. The pulse corresponding to the final rotating speed of the target fan can be generated through the pulse output chip, the final rotating speed of the target fan is configured to the pulse output chip, and the chip can output a pulse signal corresponding to the final rotating speed and output the pulse signal to an input pin of the target fan. When the target fans determined by different temperature sensors are the same target fan, the final rotating speed of the target fan can be calculated according to the rotating speed of the target fan and the rotating speed increment of the target fan, and then the final rotating speed of the target fan is configured to the pulse output chip to generate a pulse signal corresponding to the final rotating speed and output the pulse signal to the input pin of the target fan so as to realize the rotating speed adjustment of the target fan.
As can be seen from the above, in the method, by obtaining a fan state corresponding to each fan in a storage system and a current temperature value corresponding to each temperature sensor, where the fan state includes an availability flag indicating whether the fan is available and a fan speed, and then calculating, for each temperature sensor, a speed that needs to be increased when the temperature sensor changes from the current temperature value to a target value, an available fan with the minimum speed that needs to be increased is an available fan that is most sensitive to the temperature sensor, and can be used as a target fan of the temperature sensor, and then adjusting the speed of the target fan according to the speed that the target fan needs to be increased, it is possible to implement cooling of the storage system with a smaller speed increment, because the target fan needs to be increased to have the minimum speed, therefore, the noise can be reduced, namely, the temperature reduction and the noise reduction of the storage system are simultaneously realized.
Based on the above specific implementation manner of the fan rotation speed adjusting method provided in the embodiment of the present application, the embodiment of the present application further provides a fan rotation speed adjusting device, and the device for providing the force in the embodiment of the present application will be described in terms of functional modularization.
Fig. 2 is a schematic structural diagram of a fan rotation speed adjusting device according to an embodiment of the present disclosure, and referring to fig. 2, the device includes:
an obtaining unit 210, configured to obtain a fan state corresponding to each fan in the storage system and a current temperature value corresponding to each temperature sensor; the fan state comprises an availability identification for representing whether the fan is available and a fan rotating speed;
a determining unit 220, configured to calculate, for each temperature sensor, a rotation speed that needs to be increased when each available fan causes the temperature sensor to change from the current temperature value to a target value, and use an available fan with a minimum rotation speed increase as a target fan of the temperature sensor;
the adjusting unit 230 is configured to adjust the rotation speed of the target fan according to the rotation speed of the target fan that needs to be increased, so as to implement cooling and noise reduction of the storage system.
Optionally, the determining unit 220 is further configured to:
if the target fans corresponding to the at least two temperature sensors are the same, taking the maximum value of the rotating speed of the target fan, which needs to be increased, corresponding to each temperature sensor in the at least two temperature sensors as the rotating speed increment of the target fan;
the adjusting unit 230 is specifically configured to:
and adjusting the rotating speed of the target fan according to the rotating speed increment of the target fan.
Optionally, the adjusting unit 230 is specifically configured to:
determining the final rotating speed of the target fan according to the rotating speed of the target fan and the rotating speed of the target fan needing to be increased;
and outputting the pulse corresponding to the final rotating speed of the target fan to an input pin of the target fan to realize the rotating speed adjustment of the target fan.
Optionally, the determining unit 220 includes a calculating subunit and a determining subunit, wherein:
the calculating subunit is specifically configured to calculate, by using a proportional integral derivative PID algorithm, a rotation speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor changes to a target value;
the determining subunit is specifically configured to use an available fan with a minimum rotation speed increase as the target fan of the temperature sensor.
Optionally, the computing subunit is specifically configured to:
acquiring a fan state of each available fan and the current temperature value and the target value of the temperature sensor;
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, according to a preset PID parameter.
As can be seen from the above, in the apparatus, by obtaining a fan state corresponding to each fan in a storage system and a current temperature value corresponding to each temperature sensor, where the fan state includes an availability flag indicating whether the fan is available and a fan speed, and then calculating, for each temperature sensor, a speed that needs to be increased when the temperature sensor changes from the current temperature value to a target value, an available fan with the minimum speed that needs to be increased is an available fan that is most sensitive to the temperature sensor, and can be used as a target fan of the temperature sensor, and then adjusting the speed of the target fan according to the speed that the target fan needs to be increased, it is possible to implement cooling of the storage system with a smaller speed increment, because the target fan needs to be increased with the minimum speed, therefore, the noise can be reduced, namely, the temperature reduction and the noise reduction of the storage system are simultaneously realized.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method for adjusting a rotational speed of a fan, the method comprising:
acquiring fan states corresponding to all fans in a storage system and current temperature values corresponding to all temperature sensors; the fan state comprises an availability identification for representing whether the fan is available and a fan rotating speed;
for each temperature sensor, respectively calculating the rotating speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor is changed into a target value, and taking the available fan with the minimum rotating speed increase as a target fan of the temperature sensor;
and adjusting the rotating speed of the target fan according to the rotating speed of the target fan which needs to be increased so as to realize the cooling and noise reduction of the storage system.
2. The method of claim 1, further comprising:
if the target fans corresponding to the at least two temperature sensors are the same, taking the maximum value of the rotating speed of the target fan, which needs to be increased, corresponding to each temperature sensor in the at least two temperature sensors as the rotating speed increment of the target fan;
adjusting the rotation speed of the target fan according to the rotation speed of the target fan to be increased comprises:
and adjusting the rotating speed of the target fan according to the rotating speed increment of the target fan.
3. The method of claim 1, wherein the adjusting the target fan speed based on the target fan speed that needs to be increased comprises:
determining the final rotating speed of the target fan according to the rotating speed of the target fan and the rotating speed of the target fan needing to be increased;
and outputting the pulse corresponding to the final rotating speed of the target fan to an input pin of the target fan to realize the rotating speed adjustment of the target fan.
4. The method of claim 1, wherein calculating the rotational speed at which each available fan needs to be increased to change the temperature sensor from the current temperature value to a target value comprises:
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, by using a Proportional Integral Derivative (PID) algorithm.
5. The method of claim 4, wherein calculating the required increased speed of each available fan to change the temperature sensor from the current temperature value to a target value using a Proportional Integral Derivative (PID) algorithm comprises:
acquiring a fan state of each available fan and the current temperature value and the target value of the temperature sensor;
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, according to a preset PID parameter.
6. A fan speed adjustment apparatus, comprising:
the acquisition unit is used for acquiring the fan states corresponding to the fans in the storage system and the current temperature values corresponding to the temperature sensors; the fan state comprises an availability identification for representing whether the fan is available and a fan rotating speed;
a determining unit, configured to calculate, for each temperature sensor, a rotation speed that needs to be increased when each available fan causes the temperature sensor to change from the current temperature value to a target value, and use, as a target fan of the temperature sensor, an available fan with a minimum rotation speed increase;
and the adjusting unit is used for adjusting the rotating speed of the target fan according to the rotating speed of the target fan which needs to be increased so as to realize the cooling and noise reduction of the storage system.
7. The apparatus of claim 6, wherein the determining unit is further configured to: if the target fans corresponding to the at least two temperature sensors are the same, taking the maximum value of the rotating speed of the target fan, which needs to be increased, corresponding to each temperature sensor in the at least two temperature sensors as the rotating speed increment of the target fan;
the adjusting unit is specifically configured to:
and adjusting the rotating speed of the target fan according to the rotating speed increment of the target fan.
8. The apparatus according to claim 6, wherein the adjusting unit is specifically configured to:
determining the final rotating speed of the target fan according to the rotating speed of the target fan and the rotating speed of the target fan needing to be increased;
and outputting the pulse corresponding to the final rotating speed of the target fan to an input pin of the target fan to realize the rotating speed adjustment of the target fan.
9. The apparatus of claim 6, wherein the determining unit comprises a calculating subunit and a determining subunit, wherein:
the calculating subunit is specifically configured to calculate, by using a proportional integral derivative PID algorithm, a rotation speed of each available fan, which needs to be increased when the current temperature value of the temperature sensor changes to a target value;
the determining subunit is specifically configured to use an available fan with a minimum rotation speed increase as the target fan of the temperature sensor.
10. The apparatus according to claim 9, wherein the computing subunit is specifically configured to:
acquiring a fan state of each available fan and the current temperature value and the target value of the temperature sensor;
and calculating the rotating speed of each available fan, which needs to be increased when the temperature sensor is changed from the current temperature value to the target value, according to a preset PID parameter.
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| CN111397123B (en) * | 2020-03-24 | 2021-11-16 | 四川长虹空调有限公司 | Control method for heating air-out temperature of household air conditioner |
| CN115163278A (en) * | 2022-06-29 | 2022-10-11 | 三一重机有限公司 | Fan control method and device and working machine |
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| US7401644B2 (en) * | 2004-03-26 | 2008-07-22 | Hewlett-Packard Development Company, L.P. | Computer systems and related methods for cooling such systems |
| CN101994717A (en) * | 2009-08-25 | 2011-03-30 | 中兴通讯股份有限公司 | Atca fan control method and atca machine frame manager |
| CN102168681B (en) * | 2010-02-26 | 2015-04-15 | 安徽智联投资集团有限公司 | Rotation speed control system and method of CPU (Central Processing Unit) fan |
| US20140086758A1 (en) * | 2012-09-26 | 2014-03-27 | Hanwha Solution & Consulting Co., Ltd | Cooling Fan Velocity Control Apparatus Using Timer and Temperature Sensor |
| CN104251218A (en) * | 2013-06-26 | 2014-12-31 | 鸿富锦精密工业（深圳）有限公司 | Fan control device, fan control method and electronic equipment |
| CN105094250A (en) * | 2014-05-18 | 2015-11-25 | 吴燕珊 | Automatic speed control fan |
| CN104373367B (en) * | 2014-10-14 | 2017-02-15 | 国家电网公司 | Communication device fan control method and device |
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| CN108279754B (en) * | 2018-01-22 | 2020-06-16 | 苏州浪潮智能科技有限公司 | Fan heat dissipation method, system, equipment and computer readable storage medium |
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