CN105987019B - A kind of speed regulating method and device of controllable fan - Google Patents
A kind of speed regulating method and device of controllable fan Download PDFInfo
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- CN105987019B CN105987019B CN201510079394.9A CN201510079394A CN105987019B CN 105987019 B CN105987019 B CN 105987019B CN 201510079394 A CN201510079394 A CN 201510079394A CN 105987019 B CN105987019 B CN 105987019B
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- fan
- rotation speed
- current value
- speed
- robust parameter
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Classifications
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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
- F04D27/02—Surge control
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
Abstract
The invention discloses the speed regulating methods and device of a kind of controllable fan, are related to equipment cooling mechanism in data communication network.The method of the present invention includes at least: when the speed regulation device of controllable fan makes the decision for needing to lower rotation speed of the fan, the speed regulation device of controllable fan judges that the current value of the first robust parameter is equal to the first predetermined threshold value, then directly executes the operation for lowering rotation speed of the fan；If the current value of the first robust parameter is greater than the first predetermined threshold value, decrement operations are carried out according to current value of the predetermined manner to the first robust parameter, the speed regulation device of controllable fan is then waited to make the decision for needing to lower rotation speed of the fan again.The invention also discloses a kind of speed regulation devices of controllable fan.Technical scheme takes different control methods when declining when generation device temperature rises from temperature, ensure that the normal work of goal systems, while radiator and heat generating device being made to keep stable equilibrium state.
Description
Technical field
The present invention relates to equipment cooling mechanism in data communication network, in particular to a kind of speed-regulating scheme of controllable fan.
Background technique
In data communication network, the power consumption of equipment is all bigger, more especially undertakes the high-end of important service node
Router device needs good heat radiating mechanism to ensure its normal work.Current most equipment all has certain automatic control
Ability processed, under equipment power dissipation and the higher situation of environment temperature, fan can run at high speed, and improve radiating efficiency；In equipment function
Under consumption or the lower situation of environment temperature, fan meeting low-speed running reduces fan running noises.Such control method has one
A problem, when being exactly that equipment power dissipation or environment temperature change in a short time, rotation speed of the fan also can be fluctuated accordingly, and
Because fan can cause the continuous fluctuation of device temperature, be unfavorable for the normal operation of equipment to the hysteresis effect of equipment cooling.Mirror
In this problem, some equipment is improved this method, and main thought is to mark off several temperature to equipment operating temperature
Section is spent, all keeps predetermined wind speed constant in each section, when only temperature is not in this section, just adjusts rotation speed of the fan.This
A method also has certain limitation, for example can only solve fan fluctuation when equipment power dissipation and environment temperature change in section
Problem cannot thoroughly solve the problems, such as this；From the point of view of for a long time, equipment power dissipation and environment temperature change between each section
When, rotation speed of the fan still has the phenomenon that fluctuating up and down.
Summary of the invention
The technical problem to be solved by the invention is to provide the speed regulating methods and device of a kind of controllable fan, existing to solve
The problem of being fluctuated up and down with the presence of rotation speed of the fan in technology.
In order to solve the above-mentioned technical problem, the invention discloses a kind of speed regulating method of controllable fan, this method is at least wrapped
It includes:
When the speed regulation device of controllable fan makes the decision for needing to lower rotation speed of the fan, the speed regulation of the controllable fan
Device judges whether the current value of the first robust parameter is greater than the first predetermined threshold value；
If the current value of first robust parameter is equal to the first predetermined threshold value, directly executes and lower rotation speed of the fan
Operation；
If the current value of first robust parameter is greater than the first predetermined threshold value, according to predetermined manner to described the
The current value of one robust parameter carries out decrement operations, then waits the speed regulation device of the controllable fan to make again and needs to lower
The decision of rotation speed of the fan.
Optionally, in the above method, after the speed regulation device of the controllable fan executes the operation for lowering rotation speed of the fan, the party
Method further include:
The current value for resetting first robust parameter is the first initial value.
Optionally, the above method further include:
When the speed regulation device of the controllable fan makes the decision for needing to raise rotation speed of the fan, the controllable fan
Speed regulation device judges whether the current value of the second robust parameter is greater than the second predetermined threshold value；
If the current value of second robust parameter is equal to the second predetermined threshold value, up-regulation rotation speed of the fan is directly executed
Operation；
If the current value of second robust parameter is greater than the second predetermined threshold value, according to predetermined manner to described the
The current value of two robust parameters carries out decrement operations, then waits the speed regulation device of the controllable fan to make again and needs to raise
The decision of rotation speed of the fan.
Optionally, in the above method, after the speed regulation device of the controllable fan executes the operation of up-regulation rotation speed of the fan, the party
Method further include:
The current value for resetting second robust parameter is the second initial value.
Optionally, in the above method, need to raise determining for rotation speed of the fan whenever the speed regulation device of the controllable fan is made
Periodically, the current value for resetting first robust parameter is the first initial value.
Optionally, described to need to lower rotation speed of the fan whenever the speed regulation device of the controllable fan is made in the above method
Decision when, the current value for resetting second robust parameter is the second initial value.
The invention also discloses a kind of speed regulation devices of controllable fan, include at least temperature control module and speed adjusting module, also wrap
It includes such as lower unit:
Judging unit judges the first robust parameter when the temperature control module makes the decision for needing to lower rotation speed of the fan
Current value whether be greater than the first predetermined threshold value；
Transmission unit, when the current value of first robust parameter is equal to the first predetermined threshold value, directly to the tune
Fast module sends the instruction for lowering rotation speed of the fan；
Processing unit is greater than the first predetermined threshold value in the current value of first robust parameter, then according to predetermined manner
Decrement operations are carried out to the current value of first robust parameter, and waits the temperature control module to make again and needs to lower fan
The decision of revolving speed.
Optionally, in above-mentioned apparatus, the judging unit makes in the temperature control module and needs to raise determining for rotation speed of the fan
Periodically, also judge whether the current value of the second robust parameter is greater than the second predetermined threshold value；
The transmission unit, when the current value of second robust parameter is equal to the second predetermined threshold value, directly to institute
State the instruction that speed adjusting module sends up-regulation rotation speed of the fan；
The processing unit, when the current value of second robust parameter is greater than the second predetermined threshold value, according to default
Mode carries out decrement operations to the current value of second robust parameter, and waits the temperature control module to make again and need to raise
The decision of rotation speed of the fan.
Optionally, above-mentioned apparatus further include:
Reset cell lowers the operation of rotation speed of the fan in the speed adjusting module according to the instruction execution for lowering rotation speed of the fan
Afterwards, the current value for resetting first robust parameter is the first initial value.
Optionally, in above-mentioned apparatus, the reset cell is held in the speed adjusting module according to the instruction of up-regulation rotation speed of the fan
After the operation of row up-regulation rotation speed of the fan, the current value for resetting second robust parameter is the second initial value.
Optionally, in above-mentioned apparatus, the reset cell makes in the temperature control module and needs to raise determining for rotation speed of the fan
Periodically, the current value for resetting first robust parameter is the first initial value.
Optionally, in above-mentioned apparatus, the reset cell makes in the temperature control module and needs to lower determining for rotation speed of the fan
Periodically, the current value for resetting second robust parameter is the second initial value.
Technical scheme takes different control methods when declining when generation device temperature rises from temperature, guarantees
The normal work of goal systems, while radiator and heat generating device being made to keep stable equilibrium state.
Detailed description of the invention
Fig. 1 is the composed structure schematic diagram of software control module；
Fig. 2 is the flow chart that rotation speed of the fan is raised in the present embodiment；
Fig. 3 is the flow chart that rotation speed of the fan is lowered in the present embodiment.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to skill of the present invention
Art scheme is described in further detail.It should be noted that in the absence of conflict, in embodiments herein and embodiment
Feature can arbitrarily be combined with each other.
Embodiment 1
Present inventor the analysis found that, when device temperature rises and exceeds set section, in order to guarantee system
It works normally, fan wind speed needs to raise；But in device temperature decline, easily lead to set if lowering rotation speed of the fan immediately
Standby temperature recovery causes rotation speed of the fan fluctuation.Therefore it needs to control using individual logic flow and adjusts rotation speed of the fan downwards
Process, for example, introducing robust parameter R in lowering rotation speed of the fan process.R can act on the speed regulation period, only by R
After adjusting the speed the period, control logic just controls fan and executes the movement for lowering revolving speed.In this way, can be made by introducing robust parameter R
The temperature and rotation speed of the fan of equipment are in optimal equilibrium state, and can vary widely in equipment power dissipation and environment temperature
When, so that rotation speed of the fan and device temperature is reached equilibrium state as early as possible.
Based on above-mentioned thought, the present embodiment provides a kind of speed regulation devices of controllable fan, include at least temperature control module and tune
Fast module and following each unit:
Judging unit judges working as the first robust parameter when temperature control module makes the decision for needing to lower rotation speed of the fan
Whether preceding value is greater than the first predetermined threshold value；
Transmission unit is directly sent out to speed adjusting module when the current value of the first robust parameter is equal to the first predetermined threshold value
Send the instruction for lowering rotation speed of the fan；
Processing unit is greater than the first predetermined threshold value in the current value of the first robust parameter, then according to predetermined manner to the
The current value of one robust parameter carries out decrement operations, and temperature control module is waited to make the decision for needing to lower rotation speed of the fan again.
Other than introducing robust parameter in the process for lowering rotation speed of the fan, process of the preferred embodiment in up-regulation rotation speed of the fan
In robust parameter has also been introduced, at this point, judging unit is also sentenced when temperature control module makes the decision for needing to raise rotation speed of the fan
Whether the current value of disconnected second robust parameter is greater than the second predetermined threshold value；
Transmission unit is directly sent out to speed adjusting module when the current value of the second robust parameter is equal to the second predetermined threshold value
Serve the instruction for adjusting rotation speed of the fan；
Processing unit, when the current value of the second robust parameter is greater than the second predetermined threshold value, according to predetermined manner to institute
The current value for stating the second robust parameter carries out decrement operations, and waits temperature control module to make again and need to raise determining for rotation speed of the fan
It is fixed.
In addition, above-mentioned apparatus can also include: reset cell, mainly in speed adjusting module according to the instruction for lowering rotation speed of the fan
After executing the operation for lowering rotation speed of the fan, the current value of the first robust parameter of resetting is the first initial value.
After speed adjusting module is according to the operation of the instruction execution up-regulation rotation speed of the fan of up-regulation rotation speed of the fan, reset cell resetting
The current value of second robust parameter is the second initial value.
In addition to the foregoing, reset cell, when temperature control module makes the decision for needing to raise rotation speed of the fan, resetting the
The current value of one robust parameter is the first initial value.
When temperature control module makes the decision for needing to lower rotation speed of the fan, reset cell resets the current of the second robust parameter
Value is the second initial value.
Below by taking the control device of goal systems shown in FIG. 1 as an example, the specific implementation principle of above-mentioned apparatus is introduced.The dress
Set mainly includes three parts:
1) temperature measurement module, for reading the data such as device temperature, environment temperature；
2) temperature control module comprehensively considers various factors, the normal work temperature including device temperature, environment temperature and equipment
Degree, noise of equipment etc. periodically make up-regulation or lower the decision of rotation speed of the fan；
3) speed adjusting module, according to the up-regulation and downward of the instruction execution fan wind speed of control module.
And above-mentioned judging unit, transmission unit, processing unit and reset cell can be placed in temperature control module and implement,
It can also implement in speed adjusting module；Illustrate implementation method of the invention for implementing in temperature control module below.
1) introducing of robust parameter R
Robust parameter R is to mitigate device temperature instantaneous variation and the means that introduce.Robust parameter is mainly made in this example
It is raised for temperature control module and lowers two processes of rotation speed of the fan.Raising the robust parameter in process is R1, is lowered in process
Robust parameter is R2.By adjusting the value of R1 and R2, equipment heating and heat dissipation optimum balance can achieve.In actual implementation,
Robust parameter is an empirical value, needs heat-sinking capability of foundation device characteristics, equipment working environment, equipment etc. because usually determining
It is fixed.In this example, robust parameter is a positive integer.Corresponding second predetermined threshold value of R1, the first pre- gating corresponding with R2
Limit value is identical, is 0.It is the operation that subtracts 1 to the predetermined manner that the current value of robust parameter carries out decrement operations.
2) process of rotation speed of the fan is raised
This process is as shown in Figure 2.Temperature control module is comprehensively considering each factor, and makes the decision for needing to raise rotation speed of the fan
When, into this process.First check for R1, it is assumed that R1 > 0 then executes R1 and subtracts 1；Assuming that R1=0, then issue to speed adjusting module and raise
The instruction of rotation speed of the fan.In practical applications, for safety, generally setting R1 is smaller value, avoids equipment excessively high because of temperature
It influences to work normally.When it is 0 that R1, which is arranged, up-regulation rotation speed of the fan immediately is indicated.
3) process of rotation speed of the fan is lowered
This process is as shown in Figure 3.Temperature control module is comprehensively considering each factor, and makes the decision for needing to lower rotation speed of the fan
When, into this process.First check for R2, it is assumed that R2 > 0 then executes R2 and subtracts 1；Assuming that R2=0, then issue to speed adjusting module and lower
The instruction of rotation speed of the fan.In practical applications, to avoid device temperature from fluctuating, the general R1 that is arranged is the larger value, it is ensured that equipment temperature
Degree is stablized at a certain section, then executes the downward of fan wind speed.When it is 0 that R2, which is arranged, indicate to lower rotation speed of the fan immediately.
4) resetting of R1 and R2
It is initial value that following situations, which needs to reset R1 and R2:
1) when, temperature control module initializes, resetting R1 and R2 are initial value；
2) when, raising process into fan, resetting R2 is initial value；
3) when, lowering process into fan, resetting R1 is initial value；
4) it, raises in rotation speed of the fan process, issues after lowering instruction, resetting R1 is initial value；
5) it, lowers in rotation speed of the fan process, after issuing up-regulation instruction, resetting R2 is initial value.
Embodiment 2
The present embodiment provides a kind of speed regulating method of controllable fan, main includes following operation:
When the speed regulation device of controllable fan makes the decision for needing to lower rotation speed of the fan, the speed regulation device of controllable fan
Judge whether the current value of the first robust parameter is greater than the first predetermined threshold value；
If the current value of the first robust parameter is equal to the first predetermined threshold value, the behaviour for lowering rotation speed of the fan is directly executed
Make；
If the current value of the first robust parameter is greater than the first predetermined threshold value, the first robust is joined according to predetermined manner
Several current values carries out decrement operations, then waits the speed regulation device of controllable fan to make again and needs to lower determining for rotation speed of the fan
It is fixed.
Other than introducing robust parameter in the process for lowering rotation speed of the fan, process of the preferred embodiment in up-regulation rotation speed of the fan
In robust parameter has also been introduced, concrete operations are as follows:
When the speed regulation device of controllable fan makes the decision for needing to raise rotation speed of the fan, the speed regulation device of controllable fan
Judge whether the current value of the second robust parameter is greater than the second predetermined threshold value；
If the current value of the second robust parameter is equal to the second predetermined threshold value, the behaviour of up-regulation rotation speed of the fan is directly executed
Make；
If the current value of the second robust parameter is greater than the second predetermined threshold value, the second robust is joined according to predetermined manner
Several current values carries out decrement operations, then waits the speed regulation device of controllable fan to make again and needs to raise determining for rotation speed of the fan
It is fixed.
It is also noted that reset the first, second robust parameter in addition in the speed regulation device initialization of controllable fan
Outside, in the operating process of the above method, the value of robust parameter is also required to reset.Specifically, in the speed regulation device of controllable fan
After executing the operation for lowering rotation speed of the fan, the current value that can reset the first robust parameter is the first initial value.
After the speed regulation device of controllable fan executes the operation of up-regulation rotation speed of the fan, it is also desirable to reset the second robust parameter
Current value is the second initial value.
In addition, also to reset the first robust when the speed regulation device of controllable fan makes the decision for needing to raise rotation speed of the fan
The current value of parameter is the first initial value.
When the speed regulation device of controllable fan makes the decision for needing to lower rotation speed of the fan, the second robust parameter is also reset
Current value is the second initial value.
It is realized since the present embodiment method can rely on the device of above-described embodiment 1, therefore other of this method are grasped in detail
It can be found in the corresponding contents of above-described embodiment 1 as process, details are not described herein.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, one or more integrated circuits can be used also to realize in all or part of the steps of above-described embodiment.Accordingly
Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module
Formula is realized.The application is not limited to the combination of the hardware and software of any particular form.
The above, preferred embodiments only of the invention, is not intended to limit the scope of the present invention.It is all this
Within the spirit and principle of invention, any modification, equivalent substitution, improvement and etc. done should be included in protection model of the invention
Within enclosing.
Claims (12)
1. a kind of speed regulating method of controllable fan, feature is in this method includes at least:
When the speed regulation device of controllable fan makes the decision for needing to lower rotation speed of the fan, the speed regulation device of the controllable fan
Judge whether the current value of the first robust parameter is greater than the first predetermined threshold value；
If the current value of first robust parameter is equal to the first predetermined threshold value, the behaviour for lowering rotation speed of the fan is directly executed
Make；
If the current value of first robust parameter is greater than the first predetermined threshold value, according to predetermined manner to first Shandong
The current value of stick parameter carries out decrement operations, then waits the speed regulation device of the controllable fan to make again and needs to lower fan
The decision of revolving speed.
2. the method as described in claim 1, which is characterized in that the speed regulation device of the controllable fan, which executes, lowers rotation speed of the fan
Operation after, this method further include:
The current value for resetting first robust parameter is the first initial value.
3. method according to claim 1 or 2, which is characterized in that the method also includes:
When the speed regulation device of the controllable fan makes the decision for needing to raise rotation speed of the fan, the speed regulation of the controllable fan
Device judges whether the current value of the second robust parameter is greater than the second predetermined threshold value；
If the current value of second robust parameter is equal to the second predetermined threshold value, the behaviour of up-regulation rotation speed of the fan is directly executed
Make；
If the current value of second robust parameter is greater than the second predetermined threshold value, according to predetermined manner to second Shandong
The current value of stick parameter carries out decrement operations, then waits the speed regulation device of the controllable fan to make again and needs to raise fan
The decision of revolving speed.
4. method as claimed in claim 3, which is characterized in that the speed regulation device of the controllable fan executes up-regulation rotation speed of the fan
Operation after, this method further include:
The current value for resetting second robust parameter is the second initial value.
5. method as claimed in claim 3, which is characterized in that need to raise whenever the speed regulation device of the controllable fan is made
When the decision of rotation speed of the fan, the current value for resetting first robust parameter is the first initial value.
6. method as claimed in claim 3, which is characterized in that described whenever the speed regulation device of the controllable fan makes needs
When lowering the decision of rotation speed of the fan, the current value for resetting second robust parameter is the second initial value.
7. a kind of speed regulation device of controllable fan includes at least temperature control module and speed adjusting module, which is characterized in that further include:
Judging unit judges working as the first robust parameter when the temperature control module makes the decision for needing to lower rotation speed of the fan
Whether preceding value is greater than the first predetermined threshold value；
Transmission unit, when the current value of first robust parameter is equal to the first predetermined threshold value, directly to the speed regulation mould
Block sends the instruction for lowering rotation speed of the fan；
Processing unit is greater than the first predetermined threshold value in the current value of first robust parameter, then according to predetermined manner to institute
The current value for stating the first robust parameter carries out decrement operations, and waits the temperature control module to make again and need to lower rotation speed of the fan
Decision.
8. device as claimed in claim 7, which is characterized in that
The judging unit also judges that the second robust is joined when the temperature control module makes the decision for needing to raise rotation speed of the fan
Whether several current values is greater than the second predetermined threshold value；
The transmission unit, when the current value of second robust parameter is equal to the second predetermined threshold value, directly to the tune
Fast module sends the instruction of up-regulation rotation speed of the fan；
The processing unit, when the current value of second robust parameter is greater than the second predetermined threshold value, according to predetermined manner
Decrement operations are carried out to the current value of second robust parameter, and waits the temperature control module to make again and needs to raise fan
The decision of revolving speed.
9. device as claimed in claim 7 or 8, which is characterized in that further include:
Reset cell, after the speed adjusting module lowers the operation of rotation speed of the fan according to the instruction execution for lowering rotation speed of the fan, weight
The current value for setting first robust parameter is the first initial value.
10. device as claimed in claim 9, which is characterized in that
The reset cell, in the speed adjusting module according to the operation of the instruction execution up-regulation rotation speed of the fan of up-regulation rotation speed of the fan
Afterwards, the current value for resetting the second robust parameter is the second initial value.
11. device as claimed in claim 9, which is characterized in that
The reset cell resets first robust when the temperature control module makes the decision for needing to raise rotation speed of the fan
The current value of parameter is the first initial value.
12. device as claimed in claim 9, which is characterized in that
The reset cell resets the second robust parameter when the temperature control module makes the decision for needing to lower rotation speed of the fan
Current value be the second initial value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079394.9A CN105987019B (en) | 2015-02-13 | 2015-02-13 | A kind of speed regulating method and device of controllable fan |
| PCT/CN2015/086889 WO2016127611A1 (en) | 2015-02-13 | 2015-08-13 | Speed regulation method and device for controllable fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079394.9A CN105987019B (en) | 2015-02-13 | 2015-02-13 | A kind of speed regulating method and device of controllable fan |
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| Publication Number | Publication Date |
|---|---|
| CN105987019A CN105987019A (en) | 2016-10-05 |
| CN105987019B true CN105987019B (en) | 2019-11-05 |
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| CN201510079394.9A Active CN105987019B (en) | 2015-02-13 | 2015-02-13 | A kind of speed regulating method and device of controllable fan |
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| CN (1) | CN105987019B (en) |
| WO (1) | WO2016127611A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727115A (en) * | 2008-10-20 | 2010-06-09 | 鸿富锦精密工业（深圳）有限公司 | Fan control device and control method |
| CN102176173A (en) * | 2011-03-03 | 2011-09-07 | 中兴通讯股份有限公司 | Rotating speed control method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356682C (en) * | 2004-05-18 | 2007-12-19 | 精拓科技股份有限公司 | Method and system for intelligent fan speed control |
-
2015
- 2015-02-13 CN CN201510079394.9A patent/CN105987019B/en active Active
- 2015-08-13 WO PCT/CN2015/086889 patent/WO2016127611A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727115A (en) * | 2008-10-20 | 2010-06-09 | 鸿富锦精密工业（深圳）有限公司 | Fan control device and control method |
| CN102176173A (en) * | 2011-03-03 | 2011-09-07 | 中兴通讯股份有限公司 | Rotating speed control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016127611A1 (en) | 2016-08-18 |
| CN105987019A (en) | 2016-10-05 |
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