CN104373366A - 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
- CN104373366A CN104373366A CN201310398402.7A CN201310398402A CN104373366A CN 104373366 A CN104373366 A CN 104373366A CN 201310398402 A CN201310398402 A CN 201310398402A CN 104373366 A CN104373366 A CN 104373366A
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- fan
- processor
- power
- temperature
- rotating speed
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- 238000000034 method Methods 0.000 title claims description 28
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 230000006378 damage Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010181 polygamy 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
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- 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 about for the treatment of device fan control system and control the method for rotation speed of the fan.
Background technique
Computer system polygamy is now for powerful central processing unit (CPU).Powerful central processing unit (CPU) can bring higher usefulness, but also consumes larger energy, and produces more used heat.Prior art is fallen apart except unnecessary heat mainly with the mode of configuration fan, uses the destruction avoiding heat to cause system.
Typical fan control system, for example, is found among patent documentation US13/302253.Fig. 1 is the fan control system schematic diagram of prior art.In the embodiment in figure 1, fan control system 100 comprises the embedded controller 130 of a temperature sensing module 120, and a fan 140, and object is dispelled the heat at help one central processing unit (CPU) (central processing unit, CPU) 110.Wherein, temperature sensing module 120 can measure the temperature of CPU110, and measured temperature information is supplied to embedded controller 130, and embedded controller 130 according to the rotating speed of this temperature information adjustment fan 140, can be used and guarantee that CPU110 is unlikely and damage because of overheated.
Scrutable, CPU promotes its usefulness in the mode increasing operating frequency.But, usually detect cpu temperature increase to some extent time, the operating frequency of CPU promotes a period of time.In other words, control fan according to cpu temperature often real-time not, easily cause the prolongation of temperature fall time, and then affect the temperature control efficiency of fan.Therefore, the invention provides a kind of new fan control technology to promote the speed of fan control temperature.
Summary of the invention
The invention provides a kind of fan control system for the treatment of device.This system comprises: a fan, in order to this processor of lowering the temperature; One power measurement module, be coupled to this processor and this processor one supplies between power supply, in order to measure a power of this processor; One control module, is coupled between this fan and this power measurement module, and in order to control a rotating speed of this fan according to this power of this processor, wherein, when this power is prescribed a time limit higher than on a predetermined power, this control module controls this fan to improve this rotating speed; And when this power is prescribed a time limit lower than under a predetermined power, this control module controls this fan to reduce this rotating speed.
The present invention separately provides a kind of method controlling rotation speed of the fan.The method comprises: the power measuring a processor; This power according to this processor controls a rotating speed of a fan, comprising: when this power is prescribed a time limit higher than on a predetermined power, control this fan to improve this rotating speed; And when this power is prescribed a time limit lower than under a predetermined power, control this fan to reduce this rotating speed.
Accompanying drawing explanation
Fig. 1 is the fan control system schematic diagram of prior art.
Fig. 2 is the fan control system schematic diagram according to one embodiment of the invention.
Fig. 3 is the fan control system schematic diagram according to preferred embodiment.
Fig. 4 is the fan control system schematic diagram according to another embodiment of the present invention.
Fig. 5 is the method flow diagram of the control rotation speed of the fan according to one embodiment of the invention.
Fig. 6 is the method flow diagram of the control rotation speed of the fan according to 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.
Embodiment
Hereafter for introducing most preferred embodiment of the present invention.Each embodiment in order to principle of the present invention to be described, but is not used to limit the present invention.Scope of the present invention is when being as the criterion with appended claim.
fan control system
In order to improve the aforesaid drawbacks of prior art, the invention provides a kind of new fan control system.By use fan control system of the present invention, the temperature control efficiency of processor will significantly promote.
Fig. 2 is the fan control system schematic diagram according to one embodiment of the invention.Fan control system 200 of the present invention at least comprises control module 232, fan 240 and a power measurement module 260.Fan 240 of the present invention can in order to the processor 210 of this computer system of lowering the temperature, and the rotating speed of fan 240 is controlled the control of module 232.In this embodiment, processor 210 captures electric power on a supply power supply 250.Power measurement module 260 of the present invention is coupled between processor 210 and supply power supply 250, can be used to the power that measurement processor 210 consumes.
Control module 232 of the present invention is coupled between fan 240 and power measurement module 260, and the power of the processor 210 that can measure according to aforementioned power measurement module 260 controls the rotating speed of fan 240.For example, in one embodiment, control module 232 can set a default power scope, and this scope comprises a power upper limit and a lower limit.The power measured when power measurement module 260 is prescribed a time limit higher than on this predetermined power, and represent that processor 210 temperature is about to rise, namely this control module 232 controls this fan 240 to improve its rotating speed.On the contrary, the power measured when power measurement module 260 lower than this predetermined power under in limited time, represent that processor 210 is temporarily without overheated anxiety, this control module 232 can control this fan 240 to reduce its rotating speed, and object is saving the power consumpiton of fan 240.It should be noted that, for processor 210, the change of its power is early than the change of temperature, and therefore the mode of transit dose power scale of the present invention regulates fan speed, the object of control processor 210 temperature in advance can be reached, and then shorten temperature control time, lifting temperature control efficiency.
In other some embodiment, the default power scope set by aforementioned control module 232 can be zero, and the predetermined power upper limit and lower limit all can replace by identical single default value.In other some embodiment, control module 232 can pass through and searches a power rotating speed correspondence table, the combination of function computing and/or above method obtains the suitable rotation speed of the fan corresponding with processor power.Wherein, body recalled by the meter that this power rotating speed correspondence table can be stored in any kenel integrated with this control module 232 or be separated, and relevant compute mode comprises various linear or nonlinear interpolative operation.Those skilled in the art according to the corresponding relation between design sets itself rotation speed of the fan of the present invention and processor power, need not can be limited with previous embodiment.
In one embodiment, control module 232 of the present invention is integrated among the embedded controller 230 in computer system, and embedded controller 230 has other several functions in computer systems, which usually.Due to other functions not theme of the present invention of embedded controller 230, therefore herein by it will not go into details.
Fig. 4 is the fan control system schematic diagram according to preferred embodiment.With the embodiment of Fig. 2, the fan control system 300 of this embodiment at least comprises control module 332, fan 340 and a power measurement module 360.Fan 340 can in order to the processor 310 of this computer system of lowering the temperature, and the rotating speed of fan 340 is controlled the control of module 332.In this embodiment, processor 310 captures electric power on a supply power supply 350.Power measurement module 360 of the present invention is coupled between processor 310 and supply power supply 350, can measure the power that processor 310 consumes.This control module 332 can in be built among an embedded controller 330.In this most preferred embodiment, power measurement module 360 comprises a current sensing unit 362.This current sensing unit 362 is supplied to the electric current of this processor 310 in order to measure this supply power supply 350.Therefore, in this embodiment, the galvanometer that control module 332 can measure according to current sensing unit 362 calculates the power of this processor 310.Those skilled in the art can recognize, the power of an electrical assembly is the function of electric current and voltage on it.In one embodiment, the voltage of processor 310 can obtain by estimating.More particularly, the voltage of processor 310 can pass through reading one be stored in control module 332 voltage x current correspondence table and obtain.It should be noted that, generally speaking, because the amplitude of the variation in voltage on processor is much smaller far beyond electric current, the voltage of processor even can be regarded as definite value in certain embodiments, therefore, above estimation mode, control module 332 can calculate the power that processor 310 entirety consumes effectively.
Fig. 4 is the fan control system schematic diagram according to another embodiment of the present invention.With the embodiment of Fig. 3, the fan control system 400 of this embodiment at least comprises control module 432, fan 440 and a power measurement module 460.Fan 440 can in order to the processor 410 of this computer system of lowering the temperature, and the rotating speed of fan 440 is controlled the control of module 432.In this embodiment, processor 410 captures electric power on a supply power supply 450.Power measurement module 460 of the present invention is coupled between processor 410 and supply power supply 450, can measure the power that processor 410 consumes.This control module 432 can in be built among an embedded controller 430.In this embodiment, power measurement module 460 separately comprises a voltage sensing unit 464 except comprising a current sensing unit 462.This current sensing unit 462 is supplied to the electric current of this processor 410 in order to measure this supply power supply 450, and this voltage sensing unit 464 is supplied to this processor 410 voltage in order to measure this supply power supply 450.Therefore, in this embodiment, the electric current that control module 462 measures according to current sensing unit 462 and the voltage that current sensing unit 464 measures, can calculate the power of this processor 410 easily.Adopt estimation mode to obtain voltage 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 comparatively complicated, cost is also higher.
It should be noted that, although the present invention can pass through the object that the mode measuring power reaches quick temperature control, but, in certain embodiments, fan control system of the present invention still can comprise a temperature sensing module (temperature sensing module 220,320 and 420 in such as Fig. 2, Fig. 3 and Fig. 4), and control module (control module 232,332 and 432 in such as Fig. 2, Fig. 3 and Fig. 4) can control according to temperature and the rotating speed of power information to fan simultaneously.For example, in one embodiment, the temperature measured when temperature sensing module (220,320 and 420) is prescribed a time limit higher than in a default temperature, and control module (232,332 and 432) controls this fan (240,340 and 440) to improve its rotating speed; And the temperature measured when temperature sensing module (220,320 and 420) lower than under a default temperature in limited time, control module (232,332 and 432) controls this fan (240,340 and 440) to reduce this rotating speed.Or in another embodiment, when measured temperature is prescribed a time limit higher than in a default temperature, this control module (232,332 and 432) controls this fan (240,340 and 440) to improve this rotating speed; And work as measured temperature not higher than in this default temperature in limited time, control module (232,332 and 432) changes this rotating speed being controlled this fan by measured power.
control the method for rotation speed of the fan
Fan control system of the present invention is described in detail in detail above.Except aforesaid fan control system, the present invention separately provides a kind of method controlling rotation speed of the fan.
Fig. 5 is the method flow diagram of the control rotation speed of the fan according to one embodiment of the invention.The method 500 of this control rotation speed of the fan comprises: in step S502, measures the power of processor; And in step S504, the power according to this processor controls the rotating speed of fan.In this embodiment, step S504 more comprises: when this power is prescribed a time limit higher than on a predetermined power, control this fan to improve this rotating speed (sub-step S504A); And when this power is prescribed a time limit lower than under a predetermined power, control this fan to reduce this rotating speed (sub-step S504B).For example, step S502 and S504 can reach by the power measurement module 260 in Fig. 2 and control module 232 respectively.After step S504, flow process gets back to step S502.
Fig. 6 is the method flow diagram of the control rotation speed of the fan according to another embodiment of the present invention.The method 600 of this control rotation speed of the fan comprises: in step S602, measures the power of processor and temperature when different (simultaneously or); In step S603, according to the rotating speed of the temperature controlled fan of processor; And in step s 604, the power according to processor controls the rotating speed of fan.In this embodiment, step S603 more comprises: when this temperature is prescribed a time limit higher than in a default temperature, controls fan to improve rotating speed (sub-step S603A).But if the temperature measured is not prescribed a time limit higher than in this default temperature, then flow process enters step S604.In this embodiment, step S604 more comprises: when this power is prescribed a time limit higher than on a predetermined power, control this fan to improve this rotating speed (sub-step S604A); And when this power is prescribed a time limit lower than under a predetermined power, control this fan to reduce this rotating speed (sub-step S604B).After step S604, flow process gets back to step S602.For example, step S602 can reach by the power measurement module 260 of Fig. 2 and temperature sensing module 220, and step S603 and S604 can be reached by the control module 232 in Fig. 2.In addition, the method for this control rotation speed of the fan can also control according to temperature and the rotating speed of power information to fan simultaneously.For example, in one embodiment, when measured temperature is prescribed a time limit higher than in a default temperature, this fan is controlled to improve its rotating speed; And work as measured temperature lower than prescribing a time limit under a default temperature, control this fan to reduce this rotating speed.Because those skilled in the art can refer to the various mode of executions understanding this method above about the content of fan control system, and reach the identical effect of aforementioned enforcement, therefore, no longer repeat to save space to it herein.
Though the present invention discloses as above with preferred embodiment; so itself and be not used to limit scope of the present invention; any those skilled in the art; not departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the appended claim person of defining.
Claims (19)
1., for the treatment of a fan control system for device, comprising:
One fan, in order to this processor of lowering the temperature;
One power measurement module, be coupled to this processor and this processor one supplies between power supply, in order to measure a power of this processor; And
One control module, is coupled between this fan and this power measurement module, and in order to control a rotating speed of this fan according to this power of this processor, wherein, when this power is prescribed a time limit higher than on a predetermined power, this control module controls this fan to improve this rotating speed.
2., as claimed in claim 1 for the treatment of the fan control system of device, wherein prescribe a time limit under this power is lower than a predetermined power, this control module controls this fan to reduce this rotating speed.
3., as claimed in claim 1 for the treatment of the fan control system of device, wherein this control module more comprises a current sensing unit, is supplied to an electric current of this processor in order to measure this supply power supply.
4. as claimed in claim 3 for the treatment of the fan control system of device, wherein this electric current of measuring according to this current sensing unit of this control module, and by a voltage x current correspondence table read to should a voltage of electric current, calculate this power of this processor.
5., as claimed in claim 3 for the treatment of the fan control system of device, wherein this control module more comprises a voltage sensing unit, measures the voltage that this supply power supply is supplied to this processor.
6. as claimed in claim 5 for the treatment of the fan control system of device, wherein this electric current of measuring according to this current sensing unit of this control module, and from this voltage that this voltage sensing unit measures, calculate this power of this processor.
7., as claimed in claim 1 for the treatment of the fan control system of device, more comprise:
One temperature-sensitive sticker, in order to sense a temperature of this processor.
8. as claimed in claim 7 for the treatment of the fan control system of device, wherein this control module, more in order to control this rotating speed of this fan according to this temperature of this processor, wherein, when this temperature is prescribed a time limit higher than in a default temperature, this control module controls this fan to improve this rotating speed.
9., as claimed in claim 7 for the treatment of the fan control system of device, wherein prescribe a time limit under this temperature is lower than a default temperature, this control module controls this fan to reduce this rotating speed.
10. as claimed in claim 7 for the treatment of the fan control system of device, wherein when this temperature not higher than in this default temperature in limited time, this control module controls this rotating speed of this fan according to this power of this processor.
11. as claimed in claim 1 for the treatment of the fan control system of device, and wherein this control module is positioned among an embedded controller.
12. 1 kinds of methods controlling rotation speed of the fan, comprising:
Measure a power of a processor;
This power according to this processor controls a rotating speed of a fan, comprising:
When this power is prescribed a time limit higher than on a predetermined power, control this fan to improve this rotating speed; And
Under this power is lower than a predetermined power in limited time, this fan is controlled to reduce this rotating speed.
13. methods controlling rotation speed of the fan as claimed in claim 12, more comprise:
Measure the electric current that this supply power supply is supplied to this processor.
14. methods controlling rotation speed of the fan as claimed in claim 13, more comprise:
According to this electric current of measuring, and by a voltage x current correspondence table read to should a voltage of electric current, calculate this power of this processor.
15. methods controlling rotation speed of the fan as claimed in claim 13, more comprise:
Measure the voltage that this supply power supply is supplied to this processor.
16. methods controlling rotation speed of the fan as claimed in claim 15, more comprise:
According to this electric current measured and this voltage, calculate this power of this processor.
17. methods controlling rotation speed of the fan as claimed in claim 12, more comprise:
Measure a temperature of this processor.
18. methods controlling rotation speed of the fan as claimed in claim 17, more comprise:
This temperature according to this processor controls this rotating speed of this fan:
When this temperature is prescribed a time limit higher than in a default temperature, control this fan to improve this rotating speed; And
Under this temperature is lower than a default temperature in limited time, this fan is controlled to reduce this rotating speed.
19. methods controlling rotation speed of the fan as claimed in claim 17, before described this power according to this processor controls a rotating speed of a fan, more comprise:
This temperature according to this processor controls this rotating speed of this fan, more comprises:
When this temperature is prescribed a time limit higher than in a default temperature, control this fan to improve this rotating speed; And
When this temperature is not prescribed a time limit higher than in this default temperature, this power according to this processor controls this rotating speed of this fan.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102129097A TWI540262B (en) | 2013-08-14 | 2013-08-14 | Fan controll system and method for controlling fan speed |
| TW102129097 | 2013-08-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373366A true CN104373366A (en) | 2015-02-25 |
| CN104373366B 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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| 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 |
| CN107288915A (en) * | 2016-04-11 | 2017-10-24 | 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 |
| WO2018033075A1 (en) * | 2016-08-18 | 2018-02-22 | Huawei Technologies Co., Ltd. | Proactive fan speed adjustment |
| CN110778514A (en) * | 2018-07-25 | 2020-02-11 | 矽创电子股份有限公司 | Fan control system |
| CN110873069A (en) * | 2018-08-31 | 2020-03-10 | 阿里巴巴集团控股有限公司 | Method and device for controlling fan parameters |
| WO2021155665A1 (en) * | 2020-02-03 | 2021-08-12 | 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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| 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 |
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| 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 |
| WO2021155665A1 (en) * | 2020-02-03 | 2021-08-12 | 苏州浪潮智能科技有限公司 | Fan power control method and system using second-order sliding mode estimation |
| US11644040B2 (en) | 2020-02-03 | 2023-05-09 | Inspur Suzhou Intelligent Technology Co., Ltd. | Second-order sliding mode observation-based fan power control method and system |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201506254A (en) | 2015-02-16 |
| CN104373366B (en) | 2017-04-12 |
| US20150050121A1 (en) | 2015-02-19 |
| TWI540262B (en) | 2016-07-01 |
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