CN106837838A - The control system and method for server fan rotating speed - Google Patents
The control system and method for server fan rotating speed Download PDFInfo
- Publication number
- CN106837838A CN106837838A CN201611248035.2A CN201611248035A CN106837838A CN 106837838 A CN106837838 A CN 106837838A CN 201611248035 A CN201611248035 A CN 201611248035A CN 106837838 A CN106837838 A CN 106837838A
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- Prior art keywords
- fan
- server
- rotating speed
- control
- rotation speed
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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
- F04D27/004—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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses the control system and method for a kind of server fan rotating speed, system includes rotation speed of the fan control unit, load utilization information for obtaining system, according to the variation tendency of system overall load utilization rate, and rotation speed of the fan is adjusted according to the variation tendency of system overall load utilization rate.The present invention sets up the control unit of rotation speed of the fan, and based on temperature prediction control, realization switches slowly for rotation speed of the fan transition, realizes the fast and stable convergence of rotation speed of the fan.Meanwhile, the temperature distribution model of server master board is set up, main board region is divided into different emphasis heat dissipation regions, controlled using the rotation speed of the fan of differentiation, realize the integral heat sink optimization of server master board, it is ensured that the reliability of system.
Description
Technical field
The invention belongs to server radiating field, more particularly to a kind of server fan rotating speed control system and method.
Background technology
Server radiating depends on drive of the fan for air-flow, and current fan is main straight by BMC chip on mainboard
Control is connect, by gathering the change of the temperature on mainboard, the change of quick adjustment rotation speed of the fan, that realizes temperature follows adjustment,
In addition to the control for radiating effect is paid close attention to, the Noise measarement for fan is also more taken seriously, and fan is opened in system
High-decibel sound noise and voltage signal noise are produced in machine and running, for the vibration equipment failure of whole system and week
Surrounding environment noise pollution brings greater impact.
Current server system fan operation when using, when as server starting up, mainboard temperature fast hop,
Rotation speed of the fan directly significantly adjust, and now fan experiences an acceleration and deceleration process, produces compared with loud noise and letter
Number noise, the resistance to overturning for system produces large effect, and current system fan progress control method exists larger
Drawback:One is the quick adjustment of system fan rotating speed, causes the speed that is switched fast of fan motor, during acceleration and deceleration, fan
Sound and signal noise are increased sharply, and there is situation that rotation speed of the fan overregulates, it is necessary to amendment rotating speed repeatedly, under gradually stablizing
Come, produce considerable influence to power supply in the process, power supply noise is larger, be easily caused the signal of the key sensing unit such as internal memory
Transmission failure;Two is, because the installation site of server fan is more fixed, in a row to install, and rotating speed is also to unify regulation and control, this
Uniform layout and strategy is planted, is not had the air-flow of fan belt and is efficiently applied on main thermal component, very
Carry out invalid output more, cause the rising of the inefficient operation and system power dissipation of fan.For during forefan use
Sound and signal noise is big, fan work efficiency is low problem, in order to ensure that server fan cooling system efficient stable is transported
OK, during the use of real server system fan, realize that rotation speed of the fan optimization design is particularly important, and taken as decision
One of key element for device performance advantage of being engaged in.
The content of the invention
For the above mentioned problem run into during current server fan use, therefore, the present invention provides a kind of server
The control system and method for rotation speed of the fan, it has the sound and signal noise, high working efficiency reduced during fan use
The advantages of.
To achieve these goals, the present invention is adopted the following technical scheme that.
The control system of server fan rotating speed, including rotation speed of the fan control unit, the load for obtaining system are utilized
Rate information, according to the variation tendency of system overall load utilization rate, and adjusts according to the variation tendency of system overall load utilization rate
Whole rotation speed of the fan.
Preferably, rotation speed of the fan control unit is connected with server master board PCH SMBUS, and system is read by the bus
Cpu load utilization rate, memory usage information.
Preferably, the control system of server fan rotating speed, is additionally included in placement temperature sensor square on server master board
Battle array, for monitoring each regional temperature change.Server master board delimit high temperature emphasis management and control region, and active wind is set in overlying regions
Fan, startup and the rotating speed of the active fans are controlled by rotation speed of the fan control unit.
Preferably, the position of each fan, respectively places 1 independent fuse, when fan is abnormal, actively cuts off correspondence
The power supply in fan path, realizes abnormal isolation, realizes the abnormal control of fan monomer.
Preferably, high temperature emphasis management and control region, temperature is increased beyond 0.5 degree Celsius, high temperature emphasis pipe within the unit interval
The active fans for controlling region start, the quick risk for eliminating hot-spot
Preferably, in each 5CM*5CM region of mainboard, a temperature sensor is set.
Preferably, the control system of server fan rotating speed, also starts control unit including server fan, in clothes
It is engaged in during the starting up of device mainboard, directly controls fan to be run with minimum speed.
The control method of server fan rotating speed, including the load utilization information of system is obtained, it is totally negative according to system
The variation tendency of utilization rate is carried, the increase and decrease of rotation speed of the fan is pre-adjusted, the change of temperature is significantly reduced.
Preferably, the control method of server fan rotating speed, the load situation of change according to system is slow in advance to increase wind
Fan rotating speed control, while the rising change according to temperature, corrects rotating speed, it is to avoid the temperature dependency of rotating speed, eliminated control.
Preferably, the system overall load utilization rate of system increases or reduces 20% in 5S, starts the rotational speed regulation of fan.
Preferably, the overall load rate of system overall load utilization rate, i.e. system=cpu load utilization rate * 0.6+ internal memories profit
With rate information * 0.4.
Beneficial effects of the present invention:The control unit of rotation speed of the fan is set up, based on temperature prediction control, is realized for fan
Rotating speed transition switches slowly, realizes the fast and stable convergence of rotation speed of the fan.
Meanwhile, the temperature distribution model of server master board is set up, main board region is divided into different emphasis heat dissipation regions, adopt
Controlled with the rotation speed of the fan of differentiation, realize the integral heat sink optimization of server master board, it is ensured that the reliability of system.
Brief description of the drawings
Fig. 1 is the implementing procedure figure of embodiment.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
1. ATMEGA128L is used, rotation speed of the fan control unit is set up, is placed on server master board, by the fan
Rotary speed controling unit obtains the load utilization information of system, and specific acquisition methods are:Rotation speed of the fan control unit and server
Mainboard PCH SMBUS are connected, and cpu load utilization rate, the memory usage information of system are read by the bus, using weighting side
Formula generates the overall load rate=cpu load utilization rate * 0.6+ memory usage information * of system overall load utilization rate, i.e. system
0.4, according to the variation tendency of system overall load utilization rate, the increase and decrease of rotation speed of the fan is pre-adjusted, make the change of temperature significantly
Degree reduces, and the load utilization of system increases or reduce 20% in 5S, starts the rotational speed regulation of fan, when load utilization rises,
The rotational speed regulation mode of fan is:Only increase the 5% of current rotation speed of the fan every time, and kept for 2S stabilization times, be then further added by
5% rotation speed of the fan, then the stable load utilization for being kept for the 2S times, reading judgement system now being gone again, if continuing to increase,
Following prediction increases rotating speed, in advance the load situation of change according to system, slow in advance to increase rotation speed of the fan control, while basis
The rising change of temperature, corrects rotating speed, it is to avoid the temperature dependency of rotating speed, eliminates control.
2. temperature sensor matrix is placed on server master board, in each 5CM*5CM region of mainboard, one is placed
Individual temperature sensor, sets up the temperature distribution model of server master board.Specifically method for establishing model is:Close system fan,
Server master board is started shooting, continuous to collect in the time period that mainboard start delays machine to overheat, each temperature of temperature sensor matrix
The change of point is spent, the region that temperature is increased beyond 0.5 degree Celsius in the unit interval is high temperature emphasis management and control region.On this region
Side sets active fans, and startup and the rotating speed of the active fans are controlled by rotation speed of the fan control unit, the temperature within the unit interval
It is increased beyond 0.5 Celsius, then starts the active fans of the key area, the quick risk for eliminating hot-spot realizes service
The integral heat sink optimization of device mainboard.
3. atmega8L is used, server fan is set up and is started control unit, the unit is placed on server master board,
During the starting up of server master board, fan starts control unit and directly controls by server fan, during this period, wind
The PWM tach signals of fan can be connected on GND, and fan is run with minimum speed.After the completion of startup of server, by PCH's
GPIO sends system start completion marking signal, and the signal input to server fan starts control unit, and server fan is opened
After dynamic control unit receives system start completion marking signal, fan control is switched to rotation speed of the fan control unit, realized
Normal temperature sink control.
By implementation detailed above, we can very easily realize that rotation speed of the fan is designed, and not only reach reliability
It is required that, and realize efficiently requiring, realize reliability, the stability of server system.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (10)
1. the control system of server fan rotating speed, it is characterised in that including rotation speed of the fan control unit, for obtaining system
Load utilization information, according to the variation tendency of system overall load utilization rate, and according to the change of system overall load utilization rate
Change trend adjustment rotation speed of the fan.
2. the control system of server fan rotating speed as claimed in claim 1, it is characterised in that the rotation speed of the fan control is single
Unit is connected with server master board PCH SMBUS, and cpu load utilization rate, the memory usage information of system are read by the bus.
3. the control system of server fan rotating speed as claimed in claim 1, it is characterised in that be included on server master board
Temperature sensor matrix is placed, for monitoring each regional temperature change.
4. server master board delimit high temperature emphasis management and control region, and active fans, the startup of the active fans are set in overlying regions
Controlled by rotation speed of the fan control unit with rotating speed.
5. the control system of server fan rotating speed as claimed in claim 3, it is characterised in that the position of each fan
Put, respectively place 1 independent fuse, when fan is abnormal, actively cut off the power supply in correspondence fan path, realize it is abnormal every
From realizing the abnormal control of fan monomer.
6. the control system of server fan rotating speed as claimed in claim 3, it is characterised in that the high temperature emphasis management and control area
Domain temperature within the unit interval is increased beyond 0.5 degree Celsius, and the active fans in high temperature emphasis management and control region start, quick elimination office
The risk of portion's overheat
The control system of server fan rotating speed as claimed in claim 1, it is characterised in that start including server fan and control
Unit processed, for during the starting up of server master board, directly controlling fan to be run with minimum speed.
7. the control method of server fan rotating speed according to claim 1, it is characterised in that the load profit including obtaining system
Rate information is used, according to the variation tendency of system overall load utilization rate, the increase and decrease of rotation speed of the fan is pre-adjusted, makes the change of temperature
Significantly reduce.
8. the control method of server fan rotating speed according to claim 7, it is characterised in that the load change feelings according to system
Condition, it is slow in advance to increase rotation speed of the fan control, while the rising change according to temperature, corrects rotating speed, it is to avoid the temperature of rotating speed according to
Lai Xing, eliminated control.
9. the control method of server fan rotating speed according to claim 7, it is characterised in that the system of system is totally negative in 5S
Carry utilization rate and increase or reduce 20%, start the rotational speed regulation of fan.
10. the control method of server fan rotating speed according to claim 7, it is characterised in that system overall load utilization rate,
That is the overall load rate of system=cpu load utilization rate * 0.6+ memory usage information * 0.4.
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CN201611248035.2A CN106837838A (en) | 2016-12-29 | 2016-12-29 | The control system and method for server fan rotating speed |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108279934A (en) * | 2018-02-28 | 2018-07-13 | 郑州云海信息技术有限公司 | Server B IOS performance parameters setting method, device and storage medium |
CN110134208A (en) * | 2019-04-08 | 2019-08-16 | 上海闻泰信息技术有限公司 | Rotation speed of the fan Automatic adjustment method, system and server |
CN111722694A (en) * | 2020-06-19 | 2020-09-29 | 苏州浪潮智能科技有限公司 | Server energy-saving system, method for reducing power consumption of server and storage medium |
CN112443507A (en) * | 2019-08-30 | 2021-03-05 | 宏碁股份有限公司 | Intelligent fan rotating speed adjusting method, computer device and server |
CN113094231A (en) * | 2021-04-06 | 2021-07-09 | 河南工业和信息化职业学院 | Computer fan control method, system, controller and storage medium |
CN113534936A (en) * | 2021-09-14 | 2021-10-22 | 苏州浪潮智能科技有限公司 | Server fan rotating speed control method, device, equipment and medium |
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CN104635797A (en) * | 2014-12-16 | 2015-05-20 | 浪潮电子信息产业股份有限公司 | Regional detection control method for temperature of server mainboard |
CN105221467A (en) * | 2015-11-16 | 2016-01-06 | 姚焕根 | Rotation speed of the fan adjust system and method |
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JP2011106364A (en) * | 2009-11-18 | 2011-06-02 | Nec Computertechno Ltd | Electronic equipment and fan control method |
US20120216200A1 (en) * | 2011-02-17 | 2012-08-23 | Oracle International Corporation | Dynamic power and temperature capping through telemetry data analysis |
CN103375420A (en) * | 2012-04-28 | 2013-10-30 | 鸿富锦精密工业(深圳)有限公司 | Equipment cabinet system and fan control system and control method thereof |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108279934A (en) * | 2018-02-28 | 2018-07-13 | 郑州云海信息技术有限公司 | Server B IOS performance parameters setting method, device and storage medium |
CN110134208A (en) * | 2019-04-08 | 2019-08-16 | 上海闻泰信息技术有限公司 | Rotation speed of the fan Automatic adjustment method, system and server |
CN112443507A (en) * | 2019-08-30 | 2021-03-05 | 宏碁股份有限公司 | Intelligent fan rotating speed adjusting method, computer device and server |
CN111722694A (en) * | 2020-06-19 | 2020-09-29 | 苏州浪潮智能科技有限公司 | Server energy-saving system, method for reducing power consumption of server and storage medium |
CN113094231A (en) * | 2021-04-06 | 2021-07-09 | 河南工业和信息化职业学院 | Computer fan control method, system, controller and storage medium |
CN113534936A (en) * | 2021-09-14 | 2021-10-22 | 苏州浪潮智能科技有限公司 | Server fan rotating speed control method, device, equipment and medium |
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