CN104728144B - Fan control system and method - Google Patents
Fan control system and method Download PDFInfo
- Publication number
- CN104728144B CN104728144B CN201310715223.1A CN201310715223A CN104728144B CN 104728144 B CN104728144 B CN 104728144B CN 201310715223 A CN201310715223 A CN 201310715223A CN 104728144 B CN104728144 B CN 104728144B
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- Prior art keywords
- fan
- mainboard
- signal
- pulse signal
- controller
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002159 abnormal effect Effects 0.000 claims abstract description 31
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission 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
-
- 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
- F05D2270/3032—Temperature excessive temperatures, e.g. caused by overheating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A kind of fan control system includes a mainboard, a controller and a selector.This mainboard judges that the duty of a fan is the most abnormal；When the duty exception of this fan, this mainboard exports an abnormal state signal to this controller, and this controller exports a pulse signal to this selector, and this selector selects the pulse signal exporting the output of this controller to this fan.Present invention also offers a kind of control method for fan.Fan control system of the present invention and method are conducive to the Energy Saving Control of system.
Description
Technical field
The present invention relates to a kind of fan control system and method.
Background technology
Existing central processing unit (Central Processing Unit, CPU) is all dispelled the heat by a fan, wind
The rotating speed of fan is then generally by the BMC(Baseboard Management Controller on mainboard, baseboard management controller) defeated
The pulse signal gone out controls.When cpu temperature is the highest, the rotating speed that BMC controls fan is the fastest；When cpu temperature is the highest, BMC is controlled
Rotation speed of the fan processed can be slack-off.But, when the pulse signal of BMC output goes wrong, fan will be chronically at and rotate at full speed
State, so not only bad for energy-conservation, and can reduce the life-span of fan.
Summary of the invention
In view of the foregoing, it is necessary to a kind of energy-conservation fan control system and method are provided.
A kind of fan control system, including:
One mainboard, for the first pulse signal of the rotating speed of output one this fan of control, this mainboard is additionally operable to obtain one should
The rate signal of fan, according to this first pulse signal and this rate signal, this mainboard judges that the state of this fan is the most abnormal；
When the abnormal state of this fan, this mainboard exports an abnormal state signal；When the state of this fan is normal, this mainboard exports
One state normal signal；
One temperature sensor, for sensing the temperature value of this main board work；
One controller, when receiving the abnormal state signal of this mainboard output, this controller is defeated according to this temperature sensor
Temperature value output one second pulse signal gone out；When receiving the state normal signal of this mainboard output, this controller is the most defeated
Go out this second pulse signal；And
One selector, when receiving the second pulse signal of this controller output, this selector selects to export this control
Second pulse signal of device output is to this fan；When not receiving the second pulse signal of this controller output, this selector
Select the first pulse signal exporting the output of this mainboard to this fan.
A kind of control method for fan, including:
One mainboard is according to this mainboard output one first pulse value and is received from the rate signal of a fan and judges this fan
Duty is the most abnormal；
When this fan operating state exception, this mainboard exports an abnormal state signal to a controller；
This controller obtains one for sensing the temperature value that the temperature sensor of the operating temperature of a mainboard is exported；
This controller is according to the second pulse signal of the temperature value output correspondence acquired；
This selector selects to export this second pulse signal；And
This selector controls the rotating speed of fan according to this second pulse signal.
The output of this controller should when the first pulse signal exception that this mainboard exports for said fans control system and method
Second pulse signal controls the rotating speed of this fan, thus avoids fan because of long during this first pulse signal exception
The waste of the caused energy consumption of full speed running.
Accompanying drawing explanation
Fig. 1 is the block diagram of the better embodiment of fan control system of the present invention.
Fig. 2 is the flow chart of the better embodiment of control method for fan of the present invention.
Main element symbol description
| Mainboard | 10 |
| Electric pressure converter | 20 |
| Controller | 40 |
| Temperature sensor | 50 |
| Selector | 60 |
| Fan | 70 |
| Fan assembly | 1 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described in further detail by better embodiment:
Refer to Fig. 1, the better embodiment of fan control system of the present invention includes one for receiving fan 70 speed
The mainboard 10, one of signal (TACH) is for temperature sensor 50, control of the operating temperature of sensing one element (such as this mainboard 10)
Device 40 processed and a controller 40 and being connected to this mainboard 10 and this temperature sensor 50 select output this mainboard 10 maybe this control
The selector 60 of the pulse signal of device 40 processed output.In present embodiment, the power supply 12V of this mainboard 10 changes also by a voltage
Device 20 is changed, and thinks that this controller 40 provides running voltage.In other embodiments, when the power supply that this mainboard 10 provides
Voltage when meeting the running voltage needed for this controller 40, this electric pressure converter 20 also can omit.
This mainboard 10 receives the rate signal of this fan 70 transmission, also transmits this rate signal to this controller 40.Should
Mainboard 10 is additionally operable to export one first pulse signal to this selector 60, and this first pulse signal transmission is then arrived by this selector 60
This fan 70, so that this fan 70 operates according to this first pulse signal.This mainboard 10 also obtains this fan 70 and exports
Rate signal, and judge that this fan 70 is the most working properly according to this first pulse signal and the rate signal of reception, i.e. when
The rate signal received, to First Speed value as corresponding in the first pulse signal time corresponding then judges with this first pulse signal
This fan 70 is working properly.Now, this mainboard 10 output state normal signal is to this controller 40, and this controller 40 receives this
Not to this selector output signal during state normal signal, it is such that this fan 70 controls it according to this first pulse signal
Corresponding rotating speed, and then reach the purpose of heat radiation.
When mainboard 10 receive fan speed signal with this first pulse signal not to as the most right in the first pulse signal time corresponding
Should be in this First Speed value, this mainboard 10 then judges that this fan 70 is abnormal, and now, this fan 70 is likely to be at full-speed state.With
Time, this mainboard 10 exports an abnormal state signal to this controller 40, also exports the rate signal of this fan 70 to this control
Device 40, when this controller 40 receives this abnormal state signal, this controller 40 also judges the time of this fan 70 full speed running
Whether reaching a Preset Time, when the time of this fan 70 full speed running reaches this Preset Time, this controller 40 then judges
This fan 70 is abnormal.Now, for reducing energy dissipation, the temperature value output that this controller 40 exports according to this temperature sensor 50
The second corresponding pulse signal is to this selector 60.When receiving this second pulse signal, this selector 60 then selects output
This second pulse signal the most or not to this fan 70, the first pulse signal of this mainboard 10 output, so that when this is main
During the first pulse signal exception that plate 10 exports, the second arteries and veins that the output of this controller 40 is corresponding with the temperature of temperature sensor sensing
Rush signal, and then avoid the long full speed running of fan 70 and cause the waste of energy consumption.
In other embodiments, when receiving the abnormal state signal of this mainboard 10 output, this controller 40 can be straight
Connect the second pulse signal corresponding to the temperature value output according to this temperature sensor 50 output to this selector 60.
In other embodiments, this controller 40 also can judge this according to the temperature value of this temperature sensor 50 output
First pulse signal of mainboard 10 output is the most abnormal.As when the first pulse signal exception that this mainboard 10 exports, this fan
70 can full speed running so that this temperature sensor 50 sensing temperature value be consistently less than a preset temperature value, such root
Preset temperature value whether it is consistently less than to judge the first pulse that this mainboard 10 exports according to the temperature of this temperature sensor 50 sensing
Signal is the most abnormal.
Refer to Fig. 2, the better embodiment of control method for fan of the present invention includes:
Step S1, it is judged that the duty of this fan 70 is the most abnormal；When this fan 70 is abnormal, perform step S2；When
When this fan 70 is working properly, perform step S6.In present embodiment, this mainboard 10 is according to the first pulse signal exported and connects
The rate signal received judges that this fan 70 is the most abnormal.When the rate signal received is somebody's turn to do time corresponding with this first pulse signal
Mainboard 10 then judges that this fan 70 is working properly, also exports a state normal signal to this controller 40；When the speed letter received
Number this mainboard 10 time corresponding then not being judged with this first pulse signal, this fan 70 is abnormal, goes back output state abnormal signal to should
Controller 40.When receiving this abnormal state signal, whether this controller 40 also judges the time of this fan 70 full speed running
Reaching a Preset Time, when the time of this fan 70 full speed running reaches this Preset Time, this controller 40 then judges this wind
Fan 70 is abnormal；When the time of this fan 70 full speed running is not up to this Preset Time, this controller 40 then judges this fan 70
Normally.
Step S2, this controller 40 obtains the temperature value of this temperature sensor 50 output.
Step S3, this controller 40 is according to the second pulse signal of the temperature value output correspondence acquired.
Step S4, this selector 60 selects to export this second pulse signal.
Step S5, this selector 60 controls the rotating speed of fan 70 according to this second pulse signal.
Step S6, this selector 60 selects to export this first pulse signal.
Step S7, this selector 60 controls the rotating speed of fan 70 according to this second pulse signal, and returns step S1.
The output of this controller should when the first pulse signal exception that this mainboard exports for said fans control system and method
Second pulse signal controls the rotating speed of this fan, thus avoids fan 70 because of long-time during this first pulse signal exception
The waste of the caused energy consumption of full speed running.
Claims (4)
1. a fan control system, including:
One mainboard, for the first pulse signal of the rotating speed of output one control fan, this mainboard is additionally operable to obtain the speed of this fan
Degree signal, according to this first pulse signal and this rate signal, this mainboard judges that the state of this fan is the most abnormal；When this fan
Abnormal state time, this mainboard exports an abnormal state signal；When the state of this fan is normal, this mainboard is just exporting a state
Regular signal；
One temperature sensor, for sensing the temperature value of this main board work；
One controller, when receiving the abnormal state signal of this mainboard output, this controller exports according to this temperature sensor
Temperature value output one second pulse signal；When receiving the state normal signal of this mainboard output, this controller does not exports
This second pulse signal；And
One selector, when receiving the second pulse signal of this controller output, it is defeated that this selector selects to export this controller
The second pulse signal gone out is to this fan；When not receiving the second pulse signal of this controller output, this selector selects
Export the first pulse signal of this mainboard output to this fan.
2. fan control system as claimed in claim 1, it is characterised in that: the rate signal that this mainboard exports according to this fan
Whether judge that fan is the most working properly corresponding to this first pulse signal；The rate signal exported when this fan and this first arteries and veins
Rush signal and this mainboard during correspondence is judged that the state of this fan is normal；The rate signal exported when this fan is believed with this first pulse
Number this mainboard during correspondence is not judged the abnormal state of this fan.
3. a control method for fan, including:
One mainboard according to this mainboard output to a fan one first pulse signal and be received from a fan rate signal judge
The duty of this fan is the most abnormal；
When this fan operating state exception, this mainboard exports an abnormal state signal to a controller；
This controller obtains one for sensing the temperature value that the temperature sensor of the operating temperature of a mainboard is exported；
This controller is according to the second pulse signal of the temperature value output correspondence acquired；
One selector selects to export this second pulse signal；And
This selector controls the rotating speed of fan, when the duty of this fan is normal, this mainboard according to this second pulse signal
Exporting a state normal signal to this controller, this selector selects to export this first pulse signal；And this selector is according to being somebody's turn to do
First pulse signal controls the rotating speed of fan, the rate signal that a mainboard controller exports according to this fan whether corresponding to this
One pulse signal judges that fan the most normally works；When the rate signal that this fan exports is corresponding to this first pulse signal,
This mainboard judges that the state of this fan is normal；When the rate signal that this fan exports does not corresponds to this first pulse signal, should
Mainboard judges the abnormal state of this fan.
4. control method for fan as claimed in claim 3, it is characterised in that: this control method for fan also includes:
When receiving the abnormal state signal of this mainboard output, this controller judges this fan always according to the rate signal received
A Preset Time whether is reached with the time of full speed running, when the time of this fan full speed running reaches this Preset Time, should
Controller exports this second pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715223.1A CN104728144B (en) | 2013-12-23 | 2013-12-23 | Fan control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715223.1A CN104728144B (en) | 2013-12-23 | 2013-12-23 | Fan control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728144A CN104728144A (en) | 2015-06-24 |
| CN104728144B true CN104728144B (en) | 2016-12-14 |
Family
ID=53452404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310715223.1A Active CN104728144B (en) | 2013-12-23 | 2013-12-23 | Fan control system and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104728144B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882432A (en) * | 2019-02-28 | 2019-06-14 | 苏州浪潮智能科技有限公司 | A kind of fan wind speed control method, system, device and readable storage medium storing program for executing |
| CN109882437B (en) * | 2019-02-28 | 2020-10-02 | 苏州浪潮智能科技有限公司 | Fan running state monitoring method, system and device and readable storage medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI321394B (en) * | 2003-10-28 | 2010-03-01 | Hon Hai Prec Ind Co Ltd | A control means and method for switching senseable objects |
| CN100472467C (en) * | 2006-01-23 | 2009-03-25 | 联想(北京)有限公司 | Method and device for monitoring status of computer power supply fan |
| CN101165354B (en) * | 2006-10-18 | 2011-01-05 | 鸿富锦精密工业（深圳）有限公司 | Fan rotation speed automatic control circuit |
| CN101482757A (en) * | 2008-01-07 | 2009-07-15 | 联想(北京)有限公司 | Temperature control method, system and hardware apparatus |
| CN103032300A (en) * | 2011-09-29 | 2013-04-10 | 鸿富锦精密工业（深圳）有限公司 | Fan testing system and method |
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| CN104728144A (en) | 2015-06-24 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160601 Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Hua Sheng Lu Yong Jingxuan commercial building 1608 Applicant after: Jinyang Shenzhen sea Network Intelligent Technology Co.,Ltd. Address before: Haiyun Binhai Economic and Technological Development Zone, Tianjin City, No. 80 300457 Street Applicant before: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) Co.,Ltd. Applicant before: HON HAI PRECISION INDUSTRY Co.,Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yan Inventor before: Chen Guoyi Inventor before: Liu Lei |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161027 Address after: 401320 Chongqing city Banan District Yudong Street dawn village 13 Applicant after: CHONGQING YINGRUISHENG DIE CASTING Co.,Ltd. Address before: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Applicant before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20161027 Address after: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Applicant after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Hua Sheng Lu Yong Jingxuan commercial building 1608 Applicant before: Jinyang Shenzhen sea Network Intelligent Technology Co.,Ltd. |
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Effective date of registration: 20200117 Address after: 211500 No.23 Longhua Road, Longchi street, Liuhe District, Nanjing City, Jiangsu Province Patentee after: NANJING KEWEI ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 401320 Chongqing city Banan District Yudong Street dawn village 13 Patentee before: CHONGQING YINGRUISHENG DIE CASTING Co.,Ltd. |
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