CN108131318A - The control method for fan and device of a kind of electronic equipment - Google Patents
The control method for fan and device of a kind of electronic equipment Download PDFInfo
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- CN108131318A CN108131318A CN201711365465.7A CN201711365465A CN108131318A CN 108131318 A CN108131318 A CN 108131318A CN 201711365465 A CN201711365465 A CN 201711365465A CN 108131318 A CN108131318 A CN 108131318A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008859 change Effects 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims 1
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 210000003462 vein Anatomy 0.000 description 1
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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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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
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
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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
Abstract
The invention discloses the control method for fan and device of a kind of electronic equipment, the method includes：The rotary state of multiple fans is detected, and obtains status information；Judge whether the fan occurs mistake according to the status information；When judging that the first fan in the fan breaks down, the control command modulated based on pulse width is sent to other fans in addition to first fan, to control the rotating speed of the fan.This method can in time increase the rotating speed of other fans in server when a fan (fan on such as host) for electronic equipments breaks down, to ensure integral heat sink needs, and existing hardware can be utilized in the fan that control is not broken down, without increasing extra cost.
Description
Technical field
The present invention relates to the fan control sides of the control field, more particularly to a kind of electronic equipment of the electronic equipments such as server
Method and device.
Background technology
At present on the electronic equipments such as server, need, using at least one fan, to reach electronics under the work of fan
The purpose of equipment cooling, such as two fans are set in the host of server, since server is in work always under usual state
Make state, therefore two fans are also at continuous working condition for a long time, and the working method of fan make which raises
Damage probability, can be in entirety if once having fan damage, and if this problem is not found or do not intervened in time
The upper heat-sinking capability for reducing electronic equipment, causes hardware device mistake occur.
Invention content
The control method for fan and device that are designed to provide a kind of electronic equipment of the embodiment of the present invention, this method can
The rotating speed of other fans can be increased in time when a fan (fan on such as host) for electronic equipments breaks down in server,
To ensure integral heat sink needs.
In order to solve the above-mentioned technical problem, the embodiment of the present invention employs following technical solution：A kind of electronic equipment
Control method for fan, including：
The rotary state of multiple fans is detected, and obtains status information；
Judge whether the fan occurs mistake according to the status information；
When judging that the first fan in the fan breaks down, to other fans hair in addition to first fan
The control command modulated based on pulse width is sent, to control the rotating speed of the fan.
Preferably, the rotary state of the multiple fans of detecting, and obtain status information and include：
The pulse mode sent out when detecting the fan work with predetermined time interval；
The status information of the fan is generated by the pulse mode that the fan is sent out, to determine the current of the fan
Rotary state.
Preferably, described judge whether the fan occurs mistake and include according to the status information：
The standard wind flow of the fan is preset, forms standard wind flow range；
The status information is analyzed, judges the corresponding wind flow of the fan whether in the range of the standard wind flow,
If it is judge that mistake does not occur for the rotary state of the fan, otherwise judge that mistake occurs for the rotary state of the fan
Accidentally.
Preferably, it is described when judging that the first fan in the fan breaks down, to except first fan
The control command that other fans transmission in addition is modulated based on pulse width, is included with the rotating speed for controlling the fan：
When the failure of the first fan, the control command is sent to the second fan different from first fan, more
Change the pulse width of the corresponding input of second fan, it is described so as to increase to increase the supply voltage of second fan
The rotating speed of second fan.
Preferably, first fan of working as breaks down, to the second fan transmission different from first fan
The control command, the pulse width for changing the corresponding input of second fan are specially：Pass through the base of the electronic equipment
Board management controller sends control command to second fan, wide to change the pulse of the corresponding input of second fan
Degree.
The embodiment of the present invention additionally provides the fan control device of a kind of electronic equipment, including detecting module, judgment module
And control module；
The detecting module is configured to detect the rotary state of multiple fans, and obtains status information；
The judgment module is configured to judge whether the fan occurs mistake according to the status information；
The control module is connect with the judgment module, and the control module is configured to when judging the in the fan
When one fan breaks down, the control life modulated based on pulse width is sent to other fans in addition to first fan
It enables, to control the rotating speed of the fan.
Preferably, the detecting module is further configured to send out when detecting the fan work with predetermined time interval
Pulse mode, and the pulse mode sent out by the fan generates the status information of the fan, to determine the fan
Current operation state.
Preferably, described device further includes presetting module, the presetting module is configured to preset the standard of the fan
Wind flow forms standard wind flow range, so that the judgment module judges the fan pair when analyzing the status information
The wind flow answered if it is judges that mistake does not occur for the rotary state of the fan whether in the range of the standard wind flow
Accidentally, otherwise judge that mistake occurs for the rotary state of the fan.
Preferably, the control module is configured to break down when the first fan, to different from first fan
Second fan sends the control command, the pulse width of the corresponding input of second fan is changed, to increase described second
The supply voltage of fan, so as to increase the rotating speed of second fan.
Preferably, the control module is further configured to through the baseboard management controller of the electronic equipment to institute
It states the second fan and sends control command, to change the pulse width of the corresponding input of second fan.
The advantageous effect of the embodiment of the present invention is：This method can the electronic equipments such as server a fan (such as
Fan on host) rotating speeds of other fans can be increased when breaking down in time, to ensure integral heat sink needs, and in control not
Existing hardware can be utilized during the fan of failure, without increasing extra cost.
Description of the drawings
Fig. 1 is the flow chart of the control method for fan of the electronic equipment of the embodiment of the present invention；
Flow charts of the Fig. 2 for step S1 in Fig. 1 of the embodiment of the present invention；
Flow charts of the Fig. 3 for step S2 in Fig. 1 of the embodiment of the present invention；
Fig. 4 is the flow chart of a specific embodiment of the control method for fan of the electronic equipment of the embodiment of the present invention；
Fig. 5 is the structure diagram of the fan control device of the electronic equipment of the embodiment of the present invention.
Reference sign
1- control device 2- detecting module 3- judgment modules
4- control module 5- fan modules
Specific embodiment
Herein with reference to the various schemes and feature of the attached drawing description present invention.
It should be understood that various modifications can be made to the embodiment invented herein.Therefore, description above should not regard
To limit, and only as the example of embodiment.Those skilled in the art will expect within the scope and spirit of this invention
Other modifications.
The attached drawing being included in the description and forms part of the description shows the embodiment of the present invention, and with it is upper
What face provided is used to explain the present invention together to the substantially description of the present invention and the detailed description given below to embodiment
Principle.
It is of the invention by the description of the preferred form of the embodiment with reference to the accompanying drawings to being given as non-limiting examples
These and other characteristic will become apparent.
It is also understood that although invention has been described with reference to some specific examples, people in the art
Member realize with can determine the present invention many other equivalents, they have feature as claimed in claim and therefore all
In the protection domain limited whereby.
When read in conjunction with the accompanying drawings, in view of described further below, in terms of above and other of the invention, feature and advantage will become
It is more readily apparent.
Specific embodiments of the present invention are described hereinafter with reference to attached drawing；It will be appreciated, however, that the embodiment invented is only
Various ways implementation can be used in the example of the present invention.It is known and/or repeat function and structure be not described in detail to avoid
Unnecessary or extra details so that the present invention is smudgy.Therefore, the specific structural and functionality invented herein is thin
Section is not intended to restrictions, but as just the basis of claim and representative basis be used to instructing those skilled in the art with
Substantially any appropriate detailed construction is diversely using the present invention.
This specification can be used phrase " in one embodiment ", " in another embodiment ", " in another embodiment
In " or " in other embodiments ", it can be referred to one or more of identical or different embodiment according to the present invention.
Fan is provided in the electronic equipments such as the control method for fan of a kind of electronic equipment of the embodiment of the present invention, server
Module 5, which includes multiple fans, when fan module 5 works, multiple fans rotate simultaneously thinks the electronic equipment dissipating heat.It should
Control method can make corresponding adjustment, such as multiple according to the operating status of multiple fans in the electronic equipments such as computer
One in fan is since many reasons rotating speed is slack-off or stops operating, under 5 heat-sinking capability of fan module for leading to electronic equipment
Drop, can effectively transfer other fans not broken down, so as to make fan module 5 that can generally expire using the control method
The radiating requirements of sufficient electronic equipment, as shown in Figure 1, this method includes the following steps：
S1, detects the rotary state of multiple fans, and obtains status information.The rotary state of fan can be normal turns
It moves, stop operating or rotating speed is slack-off, might have one or more due to continual operation for a long time, in multiple fans goes out
What existing rotary state changed happens, and the concrete condition of rotary state can be embodied by status information, in an implementation
In example, each fan can be corresponding with the status information of itself；In another embodiment, status information can be multiple fans
Overall information, data therein include the state of each fan.
S2 judges whether fan occurs mistake according to status information.The fan of electronic equipment can pass through electronic equipment control
System (such as software control of installation on an electronic device), the velocity of rotation as needed increase fan when running large program, and
The rotating speed of fan can be lowered under the standby or smaller scene of other systems resource requirement.Therefore it is not that fan-status becomes
Change just thinks that mistake has occurred in fan.It needs to analyze status information in the present embodiment, such as checks the change of fan-status
Change whether caused by operation control command, such as since electronic equipment switchs to standby mode, need to send control command to fan
Its is made actively to reduce rotating speed.If fan breaks down, the data shown in status information can show that it be not controlled
In the case of rotating speed occur reduce or the phenomenon that stop operating, may determine that at this time and mistake occur by the fan (such as the first fan is sent out
Raw mistake).In one embodiment, with reference to Fig. 4, can utilize the electronic equipments such as server baseboard management controller (BMC,
Baseboard Management Controller) it detects the rotary state of fan and obtains status information, and then according to shape
Whether state information occurs mistake to fan judges.It can be in the situation for not increasing additional hardware using baseboard management controller
Under achieve the purpose that detecting and judgement (without increasing extra cost).
When judging that the first fan in fan breaks down, base is sent to other fans in addition to the first fan by S3
In the control command of pulse width modulation, to control the rotating speed of fan.Specifically, when judge the first fan in fan occur
Mistake thinks that the first fan breaks down, in one embodiment, the fan of failure is construed as the first wind
Fan sends control command to other fans in addition to the first fan when the first fan breaks down, i.e., does not have into multiple fans
The fan for occurring failure sends control command, so as to control fan, such as sends control command and is not broken down with improving
The second fan rotating speed so that the integral heat sink ability of the fan module 5 of electronic equipment does not decline, ensure electronic equipment
Radiating requirements.In the present embodiment, control command is to modulate (PMW, Pulse Width Modulation) based on pulse width
Order.Pulse width modulation is a kind of analog control mode, can be according to the variation of respective loads come modulation transistor base stage
Or the biasing of metal-oxide-semiconductor grid, to realize the change of transistor or metal-oxide-semiconductor turn-on time, exported so as to fulfill switching power supply
Change, further realize using the voltage of input fan being made to change based on the mode that pulse width is modulated.Such as every
The spike train that one pulse width is equal with frequency modulation, can change the width of pulse by the period for changing spike train as PWM waveform
Degree or duty ratio be able to can change the voltage of fan and frequency coordination, so as to reach control with pressure regulation using suitable control method
The purpose of fan processed such as improves the rotating speed of unspoiled fan.
In one embodiment of the invention, as shown in Fig. 2, described detects the rotary state of multiple fans, and obtains
The step of status information, includes the following steps：
S11, the pulse mode sent out when detecting fan work with predetermined time interval.The pulse form sent out during fan work
One specific manifestation of the state working condition current for fan, its corresponding pulse mode of working condition difference is also different.
Practical pulse mode and its variation situation can accurately be grasped with predetermined time interval detecting pulse mode.Such as first wind
Fan breaks down, and in the case of having little time reduction in the integral heat sink ability of the fan module 5 of electronic equipment, can detect in time
Measure the pulse mode of the first fan, and the predetermined time interval can according to the information such as the actual type model of electronic equipment come
Do corresponding specific setting.
S12 generates the status information of fan by the pulse mode that fan is sent out, to determine the current operation shape of fan
State.Specifically, pulse mode is corresponding with status information, can calculate the letter that does well according to the pulse mode detected
It ceases, and then the rotary state of corresponding fan is obtained from status information.
In one embodiment of the invention, as shown in figure 3, described judge whether fan occurs mistake according to status information
Accidentally the step of, includes the following steps：
S21 presets the standard wind flow of fan, forms standard wind flow range.Fan in normal operation can
Formation standard wind flow, based on standard wind flow, its wind flow formed can be in a range during the work time for fan
Interior fluctuation can form standard wind flow range according to the actual needs of electronic equipment.Standard wind flow range can be according to tool
Type, model or the occupation mode of the electronic equipment of body are specifically set.
S22 analyzes status information, judges the corresponding wind flow of fan whether in the range of standard wind flow, if it is
Mistake does not occur for the rotary state of judgement fan, otherwise judges that mistake occurs for the rotary state of fan.For example, fully loaded work
Wind flow can reach the peak in standard wind flow range when making, and its wind flow generated can reach standard when standby
Minimum in wind flow range.But if think that fan can receive the control command of electronic equipment after analysis status information
Control, and its generate wind flow fluctuated in standard wind flow range it may be considered that fan does not break down；Such as
Think that the wind flow that fan is not acted or generated according to control command drastically declines after fruit analysis status information, have exceeded
Standard wind flow range, it may be considered that failure has occurred in the fan.
In one embodiment of the invention, it is described when judging that the first fan in fan breaks down, to except the
The control command that other fans transmission other than one fan is modulated based on pulse width, is included with controlling the step of the rotating speed of fan
Following steps：When the failure of the first fan, control command is sent to the second fan different from the first fan, changes the second wind
The pulse width of corresponding input is fanned, to increase the supply voltage of the second fan, so as to increase the rotating speed of the second fan.Further
For, the pulse width of fan is associated with supply voltage.It in one embodiment, can will be more than pulse width etc. with reference to Fig. 4
Point, and standard Along ent is set, such as by 100 decile of the maximum pulse of fan, setting 99 is standard Along ent, if fan
It is the state that the corresponding pulse width of normal operating conditions is 0% to 99%, (goes out if the first fan is abnormal operating state
Existing failure) then can by the state that the pulse width modulation of the second fan is 100%, to increase the input voltage of the second fan,
State as pulse width increases to 100% can increase the rotating speed of the second fan 20%, effectively offset the first fan occur therefore
The insufficient effect of 5 heat-sinking capability of fan module of electronic equipment caused by after barrier.
In one embodiment of the invention, with reference to Fig. 4, first fan of working as breaks down, to different from first
The step of second fan of fan sends control command, the pulse width of the corresponding input of the second fan of change be specially：Pass through
The baseboard management controller of electronic equipment sends control command to the second fan, to change the pulse of the corresponding input of the second fan
Width.Baseboard management controller (BMC, Baseboard Management Controller) is in the electronic equipments such as server
Core equipment, baseboard management controller can pass through the internal physical variable of the electronic equipments such as sensor measurement server, example
Such as：Temperature, humidity, supply voltage, fan speed, messaging parameter and operating system function, if any one in these variables
Corresponding notice can then be sent out except the range of specified limitation by having exceeded.Therefore can not increased using baseboard management controller
(without increasing extra cost) in the case of adding additional hardware, control command, change are sent to the second fan not broken down
Its pulse width inputted, so as to increase the rotating speed of the second fan.
The embodiment of the present invention additionally provides to be set in the electronic equipments such as the fan control device 1 of a kind of electronic equipment, server
Fan module 5 is equipped with, multiple fans rotate simultaneously which includes multiple fans, when fan module 5 works thinks that the electronics is set
Standby heat dissipation.The control device 1 can make corresponding tune according to the operating status of multiple fans in the electronic equipments such as computer
It is whole, such as one in multiple fans leads to the fan module 5 of electronic equipment since many reasons rotating speed is slack-off or stops operating
Heat-sinking capability declines, other fans not broken down can be effectively transferred using the control device 1, so as to make fan module 5
The radiating requirements of electronic equipment are generally disclosure satisfy that, as shown in figure 5, the control device 1 includes detecting module 2, judgment module 3
With control module 4.
Detecting module 2 is configured to detect the rotary state of multiple fans, and obtains status information.The rotary state of fan can
To be normal rotation, stop operating or rotating speed is slack-off, due to continual operation for a long time, one is might have in multiple fans
It is a or it is multiple there is happening for rotary state change, and the concrete condition of rotary state can be embodied by status information,
In one embodiment, each fan can be corresponding with the status information of itself；In another embodiment, status information can be with
For the overall information of multiple fans, data therein include the state of each fan.
Judgment module 3 is configured to judge whether fan occurs mistake according to status information.The fan of electronic equipment can lead to
Electronic equipment control (such as the software control of installation on an electronic device) is crossed, needs to increase turning for fan when such as running large program
Dynamic speed, and the rotating speed of fan can be lowered under the standby or smaller scene of other systems resource requirement.Therefore it is not wind
Fan-shaped state, which changes, just thinks that mistake has occurred in fan.Judgment module 3 is needed to analyze status information in the present embodiment,
Such as whether the variation for checking fan-status, such as since electronic equipment switchs to standby mode, needs caused by operation control command
To send control command to fan makes its actively reduce rotating speed.If fan breaks down, the data meeting that is shown in status information
Show that the phenomenon that rotating speed is reduced or stopped operating is occurring in it in the case of not being controlled, judgment module 3 can be sentenced at this time
Fan generation mistake of breaking (such as the first fan generation mistake).In one embodiment, with reference to Fig. 4, detecting module 2 can utilize
The baseboard management controllers (BMC, Baseboard Management Controller) of the electronic equipments such as server detects wind
The rotary state of fan simultaneously obtains status information, and then judgment module 3 can also be sentenced using whether BMC occurs mistake to fan
It is disconnected.It can reach detecting (without increasing extra cost) in the case where not increasing additional hardware using baseboard management controller
With the purpose of judgement.
Control module 4 is connect with judgment module 3, and control module 4 is configured to work as the first fan appearance event judged in fan
During barrier, the control command modulated based on pulse width is sent to other fans in addition to the first fan, to control turning for fan
Speed.Specifically, the first fan generation mistake in fan is judged when judgment module 3, that is, thinks that the first fan breaks down,
In one embodiment, the fan of failure is construed as the first fan, when the first fan breaks down control module 4 to
Other fans in addition to the first fan send control command, i.e., do not have the fan to break down to send control into multiple fans
Order, so as to which fan, such as control module 4 be controlled to send control command to improve turning for the second fan not broken down
Speed so that the integral heat sink ability of the fan module 5 of electronic equipment does not decline, ensures the radiating requirements of electronic equipment.This
In embodiment, the control command that control module 4 is sent is to modulate (PMW, Pulse Width based on pulse width
Modulation order).Pulse width modulation is a kind of analog control mode, can be modulated according to the variation of respective loads
The biasing of transistor base or metal-oxide-semiconductor grid, it is steady so as to fulfill switch to realize the change of transistor or metal-oxide-semiconductor turn-on time
The change of voltage source output, further realize becomes the voltage of input fan using based on the mode that pulse width is modulated
Change.Such as using the spike train that each pulse width is equal as PWM waveform, by change spike train period can with frequency modulation,
The width or duty ratio for changing pulse be able to can become the voltage of fan and frequency coordination with pressure regulation using suitable control method
Change, so as to achieve the purpose that control fan, such as improve the rotating speed of unspoiled fan.
In one embodiment of the invention, detecting module 2 is further configured to detect the wind with predetermined time interval
The pulse mode sent out during work is fanned, and the status information of the fan is generated by the pulse mode that the fan is sent out, with
Determine the current operation state of the fan.One of the pulse mode sent out during fan work the working condition current for fan
Specific manifestation, its corresponding pulse mode of working condition difference is also different.Detecting module 2 detects arteries and veins with predetermined time interval
Practical pulse mode and its variation situation can accurately be grasped by rushing form.Such as first fan break down, set in electronics
The integral heat sink ability of standby fan module 5 is come in the case of having little time reduction, detecting module 2 can detect the first wind in time
The pulse mode of fan, and the predetermined time interval can do corresponding tool according to information such as the actual type models of electronic equipment
Body is set.Pulse mode is corresponding with status information, and the pulse mode that can be detected according to detecting module 2 calculates the letter that does well
It ceases, and then the rotary state of corresponding fan is obtained from status information.
In one embodiment of the invention, device further includes presetting module, and presetting module is configured to the mark of default fan
Quasi- wind flow forms standard wind flow range, so that judgment module 3 when analyzing status information, judges that fan is corresponding distinguished and admirable
Amount if it is judges that mistake does not occur for the rotary state of fan, otherwise judges fan whether in the range of standard wind flow
Rotary state occur mistake.Fan can form standard wind flow in normal operation, based on standard wind flow,
Its wind flow formed can fluctuate fan within the scope of one during the work time, and presetting module is according to the practical need of electronic equipment
The standard wind flow of fan is preset, forms standard wind flow range.Standard wind flow range can be set according to specific electronics
Standby type, model or occupation mode is specifically set.For example, wind flow can reach standard wind flow during fully loaded work
Peak in range, and the minimum during its wind flow generated can reach standard wind flow range when standby.But such as
Fruit judgment module 3 thinks that fan can receive the control of the control command of control module 4, and it is generated after analyzing status information
Wind flow fluctuated in standard wind flow range it may be considered that fan does not break down；If recognize after analysis status information
The wind flow for not acted or being generated according to control command for fan drastically declines, and has exceeded standard wind flow range, then sentences
Disconnected module 3 is it is considered that failure has occurred in the fan.
In one embodiment of the invention, control module 4 is configured to break down when the first fan, to different from first
Second fan of fan sends control command, the pulse width of the corresponding input of the second fan of change, to increase the second fan
Supply voltage, so as to increase the rotating speed of the second fan.Furthermore, it is understood that the pulse width of fan is associated with supply voltage.
, can be by the more deciles of pulse width with reference to Fig. 4 in one embodiment, and standard Along ent is set, such as by the maximum impulse of fan
100 decile of width, setting 99 are standard Along ent, if fan be the corresponding pulse width of normal operating conditions for 0% to
99% state, control module 4 can be by the second fan if the first fan is abnormal operating state (failure)
Pulse width modulation is 100% state, to increase the input voltage of the second fan, as pulse width increases to 100% shape
State can increase the rotating speed of the second fan 20%, effectively offset the fan of the electronic equipment caused by after the first fan breaks down
The insufficient effect of 5 heat-sinking capability of module.
With reference to Fig. 4, control module 4 is further configured to send out to the second fan by the baseboard management controller of electronic equipment
Control command is sent, to change the pulse width of the corresponding input of the second fan.Baseboard management controller (BMC, Baseboard
Management Controller) it is core equipment in the electronic equipments such as server, baseboard management controller can pass through biography
Sensor measures the internal physical variable of the electronic equipments such as server, such as：Temperature, humidity, supply voltage, fan speed, communication
Parameter and operating system function can send out phase if except any one in these variables has exceeded the range of specified limitation
The notice answered.Therefore control module 4 by using baseboard management controller can in the case where not increasing additional hardware (without
Increase extra cost), control command is sent to the second fan not broken down, the pulse width of its input is changed, so as to increase
The rotating speed of big second fan.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make the present invention respectively within the spirit and scope of the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. the control method for fan of a kind of electronic equipment, including：
The rotary state of multiple fans is detected, and obtains status information；
Judge whether the fan occurs mistake according to the status information；
When judging that the first fan in the fan breaks down, base is sent to other fans in addition to first fan
In the control command of pulse width modulation, to control the rotating speed of the fan.
2. according to the method described in claim 1, described detects the rotary state of multiple fans, and obtain status information
Including：
The pulse mode sent out when detecting the fan work with predetermined time interval；
The status information of the fan is generated by the pulse mode that the fan is sent out, to determine the current operation of the fan
State.
3. according to the method described in claim 1, described judge whether the fan occurs mistake according to the status information
Including：
The standard wind flow of the fan is preset, forms standard wind flow range；
The status information is analyzed, judges the corresponding wind flow of the fan whether in the range of the standard wind flow, if
It is to judge that mistake does not occur for the rotary state of the fan, otherwise judges that mistake occurs for the rotary state of the fan.
4. according to the method described in claim 1, it is described when judge the first fan in the fan break down when, to except
The control command that other fans transmission other than first fan is modulated based on pulse width, to control the rotating speed of the fan
Including：
When the failure of the first fan, the control command is sent to the second fan different from first fan, changes institute
The pulse width of the corresponding input of the second fan is stated, to increase the supply voltage of second fan, so as to increase described second
The rotating speed of fan.
5. according to the method described in claim 4, first fan of working as breaks down, to different from first fan
Second fan sends the control command, and the pulse width for changing the corresponding input of second fan is specially：By described
The baseboard management controller of electronic equipment sends control command to second fan, corresponding defeated to change second fan
The pulse width entered.
6. the fan control device of a kind of electronic equipment, including detecting module, judgment module and control module；
The detecting module is configured to detect the rotary state of multiple fans, and obtains status information；
The judgment module is configured to judge whether the fan occurs mistake according to the status information；
The control module is connect with the judgment module, and the control module is configured to work as the first wind judged in the fan
When fan breaks down, the control command modulated based on pulse width is sent to other fans in addition to first fan, with
Control the rotating speed of the fan.
7. device according to claim 6, described in the detecting module is further configured to detect with predetermined time interval
The pulse mode sent out during fan work, and the status information of the pulse mode generation fan sent out by the fan,
To determine the current operation state of the fan.
8. device according to claim 6, described device further includes presetting module, and the presetting module is configured to default institute
The standard wind flow of fan is stated, standard wind flow range is formed, so that the judgment module is sentenced when analyzing the status information
The corresponding wind flow of the fan break whether in the range of the standard wind flow, if it is judges the rotation shape of the fan
Mistake does not occur for state, otherwise judges that mistake occurs for the rotary state of the fan.
9. device according to claim 6, the control module is configured to break down when the first fan, to different from institute
The second fan for stating the first fan sends the control command, changes the pulse width of the corresponding input of second fan, with
Increase the supply voltage of second fan, so as to increase the rotating speed of second fan.
10. device according to claim 9, the control module is further configured to the substrate by the electronic equipment
Management Controller sends control command to second fan, to change the pulse width of the corresponding input of second fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365465.7A CN108131318A (en) | 2017-12-18 | 2017-12-18 | The control method for fan and device of a kind of electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711365465.7A CN108131318A (en) | 2017-12-18 | 2017-12-18 | The control method for fan and device of a kind of electronic equipment |
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| CN201711365465.7A Pending CN108131318A (en) | 2017-12-18 | 2017-12-18 | The control method for fan and device of a kind of electronic equipment |
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| CN111022365A (en) * | 2019-11-29 | 2020-04-17 | 苏州浪潮智能科技有限公司 | Speed regulation method, system, terminal and storage medium for dealing with fan rotor fault |
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| CN112925398A (en) * | 2019-12-06 | 2021-06-08 | 广达电脑股份有限公司 | Computing device, dual-rotor fan and heat dissipation system |
| CN113550928A (en) * | 2021-09-09 | 2021-10-26 | 迈普通信技术股份有限公司 | Fan control method and electronic equipment |
| CN113821091A (en) * | 2020-06-19 | 2021-12-21 | 戴尔产品有限公司 | Fan fault compensation |
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Application publication date: 20180608 |