CN104373366B - fan control system and method for controlling rotating speed of fan - Google Patents
fan control system and method for controlling rotating speed of fan Download PDFInfo
- Publication number
- CN104373366B CN104373366B CN201310398402.7A CN201310398402A CN104373366B CN 104373366 B CN104373366 B CN 104373366B CN 201310398402 A CN201310398402 A CN 201310398402A CN 104373366 B CN104373366 B CN 104373366B
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- fan
- processor
- power
- control
- temperature
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- 238000000034 method Methods 0.000 title claims description 28
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 238000000465 moulding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A fan control system for a processor, comprising: a fan for cooling the processor; a power measurement module coupled between the processor and a power supply of the processor for measuring a power of the processor; and the control module is coupled between the fan and the power measuring module and used for controlling the rotating speed of the fan according to the power of the processor.
Description
Technical field
The present invention is with regard to the fan control system for processor and the method for control rotation speed of the fan.
Background technology
Powerful central processing unit is equipped with computer system now more.Powerful central processing unit can bring higher
Efficiency, but larger energy is also consumed, and produce more used heat.It is unnecessary that prior art is removed in the way of configuration fan more
Heat, uses and avoids heat to the destruction caused by system.
Typical fan control system, for example, it is seen that among patent document US13/302253.Fig. 1 is existing skill
The fan control system schematic diagram of art.In the embodiment in figure 1, fan control system 100 include a temperature sensing module 120,
One embedded controller 130, and a fan 140, purpose help a central processing unit (central processing unit,
CPU) 110 radiating.Wherein, temperature sensing module 120 can measure the temperature of CPU110, and the temperature information for being measured is supplied to
Embedded controller 130, and embedded controller 130 can adjust the rotating speed of fan 140 according to this temperature information, using guarantees
CPU110 is not to be damaged because of overheated.
It will be appreciated that CPU to increase operating frequency in the way of lift its efficiency.However, generally detecing to obtain cpu temperature
When increased, the operating frequency of CPU has lifted a period of time.In other words, it is often not real enough according to cpu temperature control fan
When, the prolongation of temperature fall time is easily caused, and then affect the temperature control efficiency of fan.Therefore, the present invention provides a kind of new fan
Control technology is lifting the speed of fan control temperature.
The content of the invention
The present invention provides a kind of fan control system for processor.The system includes：One fan, to lower the temperature at this
Reason device；One power measurement module, is coupled between the processor and a supply power supply of the processor, to measure the processor
A power；One control module, is coupled between the fan and the power measurement module, to the power according to the processor
A rotating speed of the fan is controlled, wherein, when the power is higher than a predetermined power upper limit, the control module controls the fan to carry
The high rotating speed；And when the power is less than a predetermined power lower limit, the control module controls the fan to reduce the rotating speed.
The present invention separately provides a kind of method of control rotation speed of the fan.The method includes：Measure a power of a processor；According to
According to a rotating speed of the fan of Power Control one of the processor, including：When the power is higher than a predetermined power upper limit, control should
Fan is improving the rotating speed；And when the power is less than a predetermined power lower limit, control the fan to reduce the rotating speed.
Description of the drawings
Fig. 1 is the fan control system schematic diagram of prior art.
Fig. 2 is according to the fan control system schematic diagram of one embodiment of the invention.
Fig. 3 is according to the fan control system schematic diagram of preferred embodiment.
Fig. 4 is according to the fan control system schematic diagram of another embodiment of the present invention.
Fig. 5 is the method flow diagram according to the control rotation speed of the fan of one embodiment of the invention.
Fig. 6 is the method flow diagram according to the control rotation speed of the fan of another embodiment of the present invention.
Wherein, description of reference numerals is as follows：
100～fan control system；
110～CPU；
120～temperature sensing module；
130～embedded controller；
140～fan；
200～fan control system；
210～processor；
220～temperature sensing module；
230～embedded controller；
232～control module；
240～fan；
250～supply power supply；
260～power measurement module；
300～fan control system；
310～processor；
320～temperature sensing module；
330～embedded controller；
332～control module；
340～fan；
350～supply power supply；
360～power measurement module；
362～current sensing unit；
400～fan control system；
410～processor；
420～temperature sensing module；
430～embedded controller；
432～control module；
440～fan；
450～supply power supply；
460～power measurement module；
462～current sensor；
464～voltage-sensor；
S502～S504～step；
S602～S604～step.
Specific embodiment
Hereinafter introduce highly preferred embodiment of the present invention.Each embodiment is not used to limit to illustrate the principle of the present invention
The system present invention.The scope of the present invention ought be defined by appended claim.
Fan control system
In order to improve the aforesaid drawbacks of prior art, the present invention provides a kind of new fan control system.By using this
The fan control system of invention, the temperature control efficiency of processor will be substantially improved.
Fig. 2 is according to the fan control system schematic diagram of one embodiment of the invention.The present invention fan control system 200 to
Include a control module 232, a fan 240 and a power measurement module 260 less.The fan 240 of the present invention may be used to cooling
The processor 210 of one computer system, and the rotating speed of fan 240 is controlled the control of module 232.In this embodiment,
Processor 210 captures electric power from a supply power supply 250.The power measurement module 260 of the present invention is coupled to processor 210 and supplies
Answer between power supply 250, can be used to measure the power that processor 210 is consumed.
The control module 232 of the present invention is coupled between fan 240 and power measurement module 260, can be according to aforementioned power
The rotating speed of the Power Control fan 240 of the processor 210 that measurement module 260 is measured.For example, in one embodiment, control
Molding block 232 can set a default power scope, and the scope includes a power upper limit and a lower limit.Work as power measurement
When the power that module 260 is measured is higher than the predetermined power upper limit, represent that the temperature of processor 210 will rise, the control module
232 control the fan 240 to improve its rotating speed.On the contrary, when the power that power measurement module 260 is measured is preset less than this
During lower limit, processor 210 is represented temporarily without overheated anxiety, the control module 232 can control the fan 240 to reduce its turn
Speed, purpose is saving the power consumption of fan 240.It should be noted that for processor 210, the change of its power earlier than
The change of temperature, therefore the mode of transit dose power scale of the present invention adjusts fan speed, will can reach advance control process device 210
The purpose of temperature, and then shorten the temperature control time, lift temperature control efficiency.
In other some embodiments, the default power scope set by aforementioned control module 232 can be zero, and default work(
The rate upper limit and lower limit all can be replaced by the single default value of identical.In other some embodiments, control module 232 can pass through
Search power rotating speed correspondence table, function computing and/or appropriate corresponding with processor power of the combination acquirement of above method
Rotation speed of the fan.Wherein, power rotating speed correspondence table can be stored in integrate with the control module 232 or detached any kenel meter
Recall body, and the computing mode of correlation includes various interpolative operations linearly or nonlinearly.Those skilled in the art can be according to this
The bright corresponding relation conceived between sets itself rotation speed of the fan and processor power, it is not necessary to be limited with previous embodiment.
In one embodiment, control module 232 of the invention be integrated in the embedded controller 230 in computer system it
In, and embedded controller 230 generally has in computer systems other several functions.Due to embed controller 230 other
Function not subject of the present invention, therefore herein will it will not go into details.
Fig. 4 is according to the fan control system schematic diagram of preferred embodiment.With the embodiment of Fig. 2, this embodiment
Fan control system 300 at least include a control module 332, a fan 340 and a power measurement module 360.Fan 340
The processor 310 of cooling one computer system is may be used to, and the rotating speed of fan 340 is controlled the control of module 332.Here
In embodiment, processor 310 captures electric power from a supply power supply 350.The power measurement module 360 of the present invention is coupled to process
Between device 310 and supply power supply 350, the power that processor 310 is consumed can be measured.The control module 332 can be built in one
Among embedding controller 330.In this most preferred embodiment, power measurement module 360 includes a current sensing unit 362.The electric current
Sensing unit 362 is supplied to the electric current of the processor 310 to measure the supply power supply 350.Therefore, in this embodiment, control
The galvanometer that molding block 332 can be measured according to current sensing unit 362 calculates the power of the processor 310.This area skill
Art personnel are it is to be understood that the power of an electronic building brick is the function of electric current and voltage thereon.In one embodiment, processor 310
Voltage can be obtained by estimation.More particularly, the voltage of processor 310 can pass through reading one and be stored in control module 332
Voltage x current corresponds to table and obtains.It should be noted that generally, due to the amplitude of the variation in voltage on processor is far beyond electricity
Stream is much smaller, and in certain embodiments the voltage of processor even can be considered definite value, therefore, by above-mentioned estimation mode, control
Molding block 332 can effectively calculate the overall power for being consumed of processor 310.
Fig. 4 is according to the fan control system schematic diagram of another embodiment of the present invention.With the embodiment of Fig. 3, this embodiment
Fan control system 400 at least include a control module 432, a fan 440 and a power measurement module 460.Fan 440
The processor 410 of cooling one computer system is may be used to, and the rotating speed of fan 440 is controlled the control of module 432.Here
In embodiment, processor 410 captures electric power from a supply power supply 450.The power measurement module 460 of the present invention is coupled to process
Between device 410 and supply power supply 450, the power that processor 410 is consumed can be measured.The control module 432 can be built in one
Among embedding controller 430.In this embodiment, power measurement module 460 is separately wrapped in addition to including a current sensing unit 462
Include a voltage sensing unit 464.The current sensing unit 462 is supplied to the processor 410 to measure the supply power supply 450
Electric current, and the voltage sensing unit 464 is supplied to the voltage of processor 410 to measure the supply power supply 450.Therefore, here
In embodiment, the electric current and current sensing unit 464 that control module 462 is measured according to current sensing unit 462 is measured
Voltage, you can calculate the power of the processor 410 easily.Voltage is obtained using estimation mode relative to the embodiment of Fig. 3,
This embodiment can measure more accurate magnitude of voltage and calculate accurate power, but its circuit structure is complex, cost
Also it is higher.
It should be noted that although the present invention can pass through and measure the mode of power and reach the purpose of quick temperature control, however,
In some embodiments, the fan control system of the present invention still may include a temperature sensing module (such as in Fig. 2, Fig. 3 and Fig. 4
Temperature sensing module 220,320 and 420), and control module (such as control module 232,332 in Fig. 2, Fig. 3 and Fig. 4 and
432) simultaneously the rotating speed of fan can be controlled according to temperature and power information.For example, in one embodiment, temperature is worked as
When the temperature that sensing module (220,320 and 420) is measured is higher than a default temperature upper limit, control module (232,332 and 432)
The fan (240,340 and 440) is controlled to improve its rotating speed；And work as the temperature that temperature sensing module (220,320 and 420) is measured
When degree is less than a default temperature lower limit, control module (232,332 and 432) controls the fan (240,340 and 440) to reduce being somebody's turn to do
Rotating speed.Or, in another embodiment, when the temperature for being measured is higher than a default temperature upper limit, the control module (232,
332 and 432) fan (240,340 and 440) is controlled to improve the rotating speed；And work as measured temperature not higher than the acquiescence
During temperature upper limit, control module (232,332 and 432) changes by the rotating speed for the Power Control fan for being measured.
The method of control rotation speed of the fan
The fan control system of the present invention has been described in detail in detail above.Except aforesaid fan control system, the present invention is another to provide one
The method for planting control rotation speed of the fan.
Fig. 5 is the method flow diagram according to the control rotation speed of the fan of one embodiment of the invention.The side of the control rotation speed of the fan
Method 500 includes：In step S502, the power of processor is measured；And in step S504, according to the power control of the processor
The rotating speed of fan processed.In this embodiment, step S504 is further included：When the power is higher than a predetermined power upper limit, control should
Fan is improving the rotating speed (sub-step S504A)；And when the power is less than a predetermined power lower limit, control the fan to drop
The low rotating speed (sub-step S504B).For example, step S502 and S504 can respectively by the power measurement module 260 in Fig. 2
And control module 232 is reached.After step S504, flow process returns to step S502.
Fig. 6 is the method flow diagram according to the control rotation speed of the fan of another embodiment of the present invention.The control rotation speed of the fan
Method 600 includes：In step S602, the power and temperature (while or different when) of processor is measured；In step S603, according to
According to the rotating speed of the temperature controlled fan of processor；And in step s 604, according to the rotating speed of the Power Control fan of processor.
In this embodiment, step S603 is further included：When the temperature is higher than a default temperature upper limit, control fan to improve rotating speed
(sub-step S603A).If however, when the temperature for measuring is not above the default temperature upper limit, flow process enters step S604.
In this embodiment, step S604 is further included：When the power is higher than a predetermined power upper limit, control the fan to improve the rotating speed
(sub-step S604A)；And when the power is less than a predetermined power lower limit, control the fan to reduce the rotating speed (sub-step
S604B).After step S604, flow process returns to step S602.For example, step S602 can be by the power measurement mould of Fig. 2
Block 260 and temperature sensing module 220 are reached, and step S603 and S604 can be reached by the control module 232 in Fig. 2.Additionally,
The method of the control rotation speed of the fan can also be controlled according to temperature and power information to the rotating speed of fan simultaneously.Citing and
Speech, in one embodiment, when the temperature for being measured is higher than a default temperature upper limit, controls the fan to improve its rotating speed；And
When the temperature for being measured is less than a default temperature lower limit, control the fan to reduce the rotating speed.Due to those skilled in the art
Can refer to the content previously for fan control system and understand the various embodiments of this method, and reach aforementioned enforcement identical
Effect, therefore, no longer it is repeated to save space herein.
Though the present invention is disclosed above with preferred embodiment, so it is not limited to the scope of the present invention, any this area
Technical staff, without departing from the spirit and scope of the invention, when a little change and retouching, therefore the protection of the present invention can be done
Scope ought be defined depending on the appended claim person of defining.
Claims (14)
1. a kind of fan control system for processor, including：
One fan, to the processor of lowering the temperature；
One power measurement module, is coupled between the processor and a supply power supply of the processor, to measure the processor
A power；And
One control module, is coupled between the fan and the power measurement module, to the Power Control according to the processor
One rotating speed of the fan, wherein, the control module sets a predetermined power scope, and the predetermined power scope includes a predetermined power
The upper limit and a predetermined power lower limit, when the power is higher than the predetermined power upper limit, the control module controls the fan to improve
The rotating speed, when the power is less than the predetermined power lower limit, the control module controls the fan to reduce the rotating speed；
One temperature-sensitive sticker, to the temperature for sensing the processor；
Wherein when the temperature is not higher than the default temperature upper limit, the control module is according to the Power Control of the processor fan
The rotating speed.
2. it is electric that the as claimed in claim 1 fan control system for being used for processor, wherein the power measurement module further include one
Current sensing unit, an electric current of the processor is supplied to measure the supply power supply.
3. the fan control system of processor is used for as claimed in claim 2, and wherein the control module is according to the current sense
The electric current that unit is measured, and by a voltage x current correspondence table read to should electric current a voltage, calculate this
The power of processor.
4. it is electric that the as claimed in claim 2 fan control system for being used for processor, wherein the power measurement module further include one
Pressure sensing unit, measures the voltage that the supply power supply is supplied to the processor.
5. the fan control system of processor is used for as claimed in claim 4, and wherein the control module is according to the current sense
The electric current that unit is measured, and from the voltage that the voltage sensing unit is measured, calculate the power of the processor.
6. the as claimed in claim 1 fan control system for being used for processor, the wherein control module, more to according at this
The rotating speed of the temperature control of the reason device fan, wherein, when the temperature is higher than a default temperature upper limit, the control module control
Make the fan to improve the rotating speed.
7. the fan control system of processor is used for as claimed in claim 1, wherein when the temperature is less than under a default temperature
In limited time, the control module controls the fan to reduce the rotating speed.
8. the fan control system of processor is used for as claimed in claim 1, and the wherein control module is located at an embedded control
Among device.
9. it is a kind of control rotation speed of the fan method, including：
Measure a power of a processor；
Measure a temperature of the processor；
According to a rotating speed of the fan of temperature control one of the processor, including：
When the temperature is higher than a default temperature upper limit, control the fan to improve the rotating speed；
When the temperature is not higher than the default temperature upper limit, according to the rotating speed of the Power Control of the processor fan, bag
Include：
A predetermined power scope is set, the predetermined power scope includes a predetermined power upper limit and a predetermined power lower limit；
When the power is higher than the predetermined power upper limit, control the fan to improve the rotating speed；And
When the power is less than the predetermined power lower limit, control the fan to reduce the rotating speed.
10. the method for control rotation speed of the fan as claimed in claim 9, further includes：
Measure the electric current that supply power supply is supplied to the processor.
The method of 11. control rotation speeds of the fan as claimed in claim 10, further includes：
According to the electric current that measured, and by voltage x current correspondence table read to should electric current a voltage, calculate
Go out the power of the processor.
The method of 12. control rotation speeds of the fan as claimed in claim 10, further includes：
Measure the voltage that the supply power supply is supplied to the processor.
The method of 13. control rotation speeds of the fan as claimed in claim 12, further includes：
According to the electric current and the voltage for being measured, the power of the processor is calculated.
The method of 14. control rotation speeds of the fan as claimed in claim 9, further includes：
According to the rotating speed of the temperature control of the processor fan：
When the temperature is higher than a default temperature upper limit, control the fan to improve the rotating speed；And
When the temperature is less than a default temperature lower limit, control the fan to reduce the rotating speed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102129097 | 2013-08-14 | ||
| TW102129097A TWI540262B (en) | 2013-08-14 | 2013-08-14 | Fan controll system and method for controlling fan speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373366A CN104373366A (en) | 2015-02-25 |
| CN104373366B true CN104373366B (en) | 2017-04-12 |
Family
ID=52466975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310398402.7A Active CN104373366B (en) | 2013-08-14 | 2013-09-04 | fan control system and method for controlling rotating speed of fan |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20150050121A1 (en) |
| CN (1) | CN104373366B (en) |
| TW (1) | TWI540262B (en) |
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| TW201533564A (en) | 2014-02-27 | 2015-09-01 | 萬國商業機器公司 | Fan control system and method for a computer system based on power ratio |
| TW201600960A (en) | 2014-06-25 | 2016-01-01 | 萬國商業機器公司 | Fan control system and method for a computer system based on a time-variable rate of current |
| TW201703621A (en) * | 2015-07-06 | 2017-01-16 | Bigbest Solutions Inc | Ventilation system and control unit thereof comprising a motor having a driving axle, a fan that is pivotally connected to the driving axle and driven by the motor, and a control unit |
| TWI596461B (en) * | 2016-03-31 | 2017-08-21 | 技嘉科技股份有限公司 | Operating method of heat dissipation controller and heat dissipation electronic system |
| CN107288915B (en) * | 2016-04-11 | 2018-11-16 | 中国船舶重工集团海装风电股份有限公司 | The axial flow blower control method of wind power generating set |
| US20180054918A1 (en) * | 2016-08-18 | 2018-02-22 | Futurewei Technologies, Inc. | Proactive fan speed adjustment |
| CN108150979B (en) * | 2016-12-06 | 2020-02-18 | 通用电气照明解决方案有限公司 | LED lamp, method and system for controlling fan rotating speed of LED lamp |
| CN107577224B (en) * | 2017-09-27 | 2020-06-19 | 西安特锐德智能充电科技有限公司 | Charger and core controller and heat dissipation control method thereof |
| US11248617B2 (en) | 2018-07-25 | 2022-02-15 | Sitronix Technology Corp. | Fan control system |
| CN110873069B (en) * | 2018-08-31 | 2021-10-15 | 阿里巴巴集团控股有限公司 | Method and device for controlling fan parameters |
| CN111237233B (en) | 2020-02-03 | 2021-11-26 | 苏州浪潮智能科技有限公司 | Fan power control method and system using second-order sliding mode estimation |
| TWI747485B (en) * | 2020-09-10 | 2021-11-21 | 海韻電子工業股份有限公司 | Fan speed control method to avoid sudden change of power output state and cause control inaccuracy |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150050121A1 (en) | 2015-02-19 |
| CN104373366A (en) | 2015-02-25 |
| TW201506254A (en) | 2015-02-16 |
| TWI540262B (en) | 2016-07-01 |
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