CN106884808B - Rack fan control system and its method - Google Patents
Rack fan control system and its method Download PDFInfo
- Publication number
- CN106884808B CN106884808B CN201510937808.7A CN201510937808A CN106884808B CN 106884808 B CN106884808 B CN 106884808B CN 201510937808 A CN201510937808 A CN 201510937808A CN 106884808 B CN106884808 B CN 106884808B
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- China
- Prior art keywords
- baseboard management
- management controller
- mainboard
- sub
- master control
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Temperature (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A kind of rack fan control system of present invention offer and its method, the rack fan control system include：One backboard；Several mainboards, one of several mainboards person has a master control Baseboard Management Controller, and other mainboards are respectively provided with a sub- Baseboard Management Controller, the master control Baseboard Management Controller and the sub- Baseboard Management Controller are connected respectively an at least temperature sensor；And several fan groups；Wherein, when the master control Baseboard Management Controller does not receive wherein one specific sub- Baseboard Management Controller of all sub- Baseboard Management Controllers and returns the temperature information of temperature sensor sensing corresponding to it in a preset time, calculate the calculating power consumption of the mainboard corresponding to the specific sub- Baseboard Management Controller, when the calculating power consumption of mainboard corresponding to the specific sub- Baseboard Management Controller is more than the default power consumption upper limit corresponding to it, the rotating speed of the fan group corresponding to the mainboard of the specific sub- Baseboard Management Controller is only turned up.
Description
【Technical field】
The present invention is a kind of rack fan control system and its method.
【Background technology】
Generally, large server (Rack Server), all can be by BMC in order to monitor and protect the safety of system
The rotating speed for the temperature and management fan that (Baseboard Management Controller) comes in monitoring system utilizes so far
Multiple BMC are come to manage the multi-disc mainboard in Rack Server (Mother Board) and equipment be trend.
One is centre management BMC (Centalized BMC) frameworks:For one centre management BMC of multiple BMC frameworks
Timing obtains downwards sensor (sensor) data (such as cpu temperature, DIMM temperature etc.) of the BMC in all devices, finally
Fan control processing is responsible for by centre management BMC again.
Another kind is non-stop layer management BMC (Non-centrolized BBMC) framework:The server of this framework is in order to save
Entire vertical system is out responsible for and monitors in cost-saving using one of them is taken in the BMC in multi-disc mainboard.In this framework, bear
The BMC of management is blamed as main BMC, the sensing data (sensor is obtained using the BMC in inquiry side mainboard in turn or equipment
Data), and be directed through circuit obtain backboard (Backplane) and fan board (Fan board) on sensing data
(sensor data), the function of protection system is reached by the internal calculation and monitoring of main BMC.
Two kinds of either above-mentioned frameworks cause wherein non-master BMC not return normally in certain system exceptions
When sensor data to main BMC, in order to protect system safe, it can force to hale all system fans to prevent locking system temperature
Excessively high and closing immediately has the equipment or mainboard of abnormal BMC.Although such mechanism safety, it is possible that the BMC of the exception
Only doing tough body renewal, or voltage on the mainboard of genuine abnormal but BMC management and temperature all still normal feelings
Condition causes the waste more than the energy under the concept of Considering Environmental energy-saving and carbon-saving now.
In view of this, the present invention provides a kind of rack fan control system and its method, when wherein thering is BMC to be abnormal
When, it is not required to start fan protection mechanism at once, all fans will not turn entirely immediately, and reaching reduces fan noise and save the energy
Purpose.
【Invention content】
The main purpose of the present invention is to provide a kind of rack fan control system and its method, when wherein there is BMC
It when abnormal, is not required to start the fan protection mechanism that all fans turn entirely immediately at once, reaching reduces fan noise and saving energy
The purpose in source.
In order to achieve the above object, the present invention provides a kind of rack fan control system comprising：
One backboard；
Several mainboards, are separately connected the backboard, and one of several described mainboards person has a master control master
Board management controller, and other mainboards are respectively provided with a sub- Baseboard Management Controller, the master control mainboard of several mainboards
Management Controller and several sub- Baseboard Management Controllers are connected respectively an at least temperature sensor, the master control mainboard
Management Controller is connect with several sub- Baseboard Management Controllers respectively by the backboard；And
Several fan groups connect the corresponding master control Baseboard Management Controller by the backboard；
Wherein, the temperature sensor of each mainboard senses the temperature information of its corresponding mainboard and penetrates corresponding to it in real time
The temperature information is transferred to the master control Baseboard Management Controller connected to it by the sub- Baseboard Management Controller, described
Master control Baseboard Management Controller periodically divides via interrupting SMI and trigger all sub- Baseboard Management Controllers and return it respectively
The temperature information that not corresponding temperature sensor senses corresponds to respectively to adjust separately each sub- Baseboard Management Controller
The fan group rotating speed, and the master control Baseboard Management Controller does not receive all sub- mainboard pipes in a preset time
When wherein one specific sub- Baseboard Management Controller of reason controller returns the temperature information of the temperature sensor sensing corresponding to it,
The calculating power consumption for calculating the mainboard corresponding to the specific sub- Baseboard Management Controller, in the specific sub- mainboard management control
When the calculating power consumption of mainboard corresponding to device is more than the default power consumption upper limit corresponding to it, i.e., the specific son is only turned up
The rotating speed of the fan group corresponding to mainboard corresponding to Baseboard Management Controller.
Preferably, the calculating power consumption of the mainboard corresponding to the specific sub- Baseboard Management Controller is more than corresponding to it
A default power consumption upper limit when, that is, the wind corresponding to the mainboard corresponding to the specific sub- Baseboard Management Controller is turned up
The rotating speed of fan group to full speed rotates, and implies that and at full throttle rotates.Preferably, the master control Baseboard Management Controller is described pre-
If the wherein one specific sub- Baseboard Management Controller for not receiving all sub- Baseboard Management Controllers in the time returns corresponding to it
When the temperature information of temperature sensor sensing, detect whether the specific sub- Baseboard Management Controller has unlatching, if testing result
When to open, the master control Baseboard Management Controller calculates the calculating of the mainboard corresponding to the specific sub- Baseboard Management Controller
Power consumption.
Preferably, the master control Baseboard Management Controller is subtracted according to the whole total power consumption of all mainboards measured
All sub- Baseboard Management Controllers except the specific sub- Baseboard Management Controller measured and master control mainboard management control
Device processed the measurement power consumption of corresponding mainboard calculate the mainboard corresponding to the specific sub- Baseboard Management Controller
Calculate power consumption.
Preferably, the master control Baseboard Management Controller obtains the corresponding default consumption of all mainboard institutes through FRU
The electricity upper limit, to read the default power consumption upper limit of the mainboard corresponding to the specific sub- Baseboard Management Controller, and with it is described
The calculating power consumption of mainboard corresponding to specific sub- Baseboard Management Controller is made comparisons to execute judgement.
The present invention provides a kind of rack control method for fan, is executed by the rack fan control system, the machine
Frame fan control system includes a backboard；Several mainboards, are separately connected the backboard, several mainboards wherein it
One has a master control Baseboard Management Controller, and other mainboards are respectively provided with a sub- Baseboard Management Controller, several masters
The master control Baseboard Management Controller of plate and several sub- Baseboard Management Controllers are connected respectively at least temperature biography
Sensor；And several fan groups, the corresponding master control Baseboard Management Controller, the rack are connected by the backboard
Control method for fan includes the following steps:
A. the master control Baseboard Management Controller periodically triggers all sub- Baseboard Management Controllers via interruption SMI
Return respectively its temperature information that senses of corresponding temperature sensor；
B. whether the master control Baseboard Management Controller detection does not receive all sub- mainboard management controls in a preset time
Wherein one specific sub- Baseboard Management Controller of device processed returns the temperature information of the sensing of the temperature sensor corresponding to it, if it is
C is thened follow the steps, if it is not, then continuing to execute this step；
C. the master control Baseboard Management Controller calculates the meter of the mainboard corresponding to the specific sub- Baseboard Management Controller
Calculate power consumption；
D. the master control Baseboard Management Controller judges the meter of the mainboard corresponding to the specific sub- Baseboard Management Controller
Power consumption is calculated whether more than a default power consumption upper limit, if it is e is thened follow the steps, if it is not, then return to step b；And
E. it is right that the institute of the mainboard corresponding to the specific sub- Baseboard Management Controller is turned up in the master control Baseboard Management Controller
The rotating speed for the fan group answered.
Compared with prior art, rack fan control system of the present invention and its method, in the master control mainboard management control
Device detection processed does not receive the specific sub- Baseboard Management Controller passback of all sub- Baseboard Management Controllers in the preset time
When the temperature information of the temperature sensor sensing corresponding to it, the master control Baseboard Management Controller judges the specific sub- mainboard
Whether the calculating power consumption of the mainboard corresponding to Management Controller is more than the default power consumption upper limit, only when described specific
When the calculating power consumption of mainboard corresponding to sub- Baseboard Management Controller is more than the default power consumption upper limit, the spy is just turned up
The rotating speed of the fan group corresponding to mainboard corresponding to stator Baseboard Management Controller, therefore there have BMC to occur wherein to be different
Chang Shi is not required to start the fan protection mechanism that all fans turn entirely immediately at once, and reaching reduces fan noise and the saving energy
Purpose.
【Description of the drawings】
Fig. 1 is a kind of square principle figure of rack fan control system of the present invention.
Fig. 2 is a kind of step flow chart of rack control method for fan of the present invention.
【Specific implementation mode】
Refering to Figure 1, the present invention provides a kind of rack fan control system comprising a backboard 1, several mainboards
2, several fan groups 3.
Several described mainboards 2 are separately connected the backboard 1, and one of several described mainboards 2 person has one
Master control Baseboard Management Controller (Master BMC) 20, and other mainboards 2 are respectively provided with a sub- Baseboard Management Controller (Slave
BMC) 21, and the master control Baseboard Management Controller of several mainboards 2 and several sub- Baseboard Management Controller difference
Be correspondingly connected with an at least temperature sensor 22, if the master control Baseboard Management Controller 20 by the backboard 1 respectively with it is described
Dry sub- Baseboard Management Controller 21 and the connection of several described fan groups 3.An at least temperature sensor 22 senses in real time
The temperature information of its corresponding mainboard 2 simultaneously passes the temperature information through the sub- Baseboard Management Controller 21 corresponding to it
It is defeated by the master control Baseboard Management Controller 20 connected to it.The master control Baseboard Management Controller 20 is periodically in
Disconnected SMI (SystemManagement Interrupt, SMI)) all sub- Baseboard Management Controllers 21 of triggering return it respectively
The temperature information that senses of corresponding temperature sensor 22 adjusting separately 21 institute of each sub- Baseboard Management Controller
The rotating speed of the corresponding fan group 3, and the master control Baseboard Management Controller 20 does not receive in a preset time
Wherein one specific sub- Baseboard Management Controller 21 of all sub- Baseboard Management Controllers 21 returns the temperature sensor corresponding to it
When the temperature information of 22 sensings, the calculating power consumption of the mainboard 2 corresponding to the specific sub- Baseboard Management Controller 21 is calculated, together
When through FRU (FIELD REPLACEABLE UNIT, Field Replaceable Unit) to obtain the corresponding ㄧ of 2 institute of all mainboards pre-
If the power consumption upper limit, to read the default power consumption upper limit of the mainboard 2 corresponding to the specific sub- Baseboard Management Controller 21, and
It makes comparisons to execute judgement, and in institute with the calculating power consumption of the mainboard 2 corresponding to the specific sub- Baseboard Management Controller 21
The calculating power consumption for stating the mainboard 2 corresponding to specific sub- Baseboard Management Controller 21 is more than the default power consumption corresponding to it
When the upper limit, the rotating speed of the fan group 3 corresponding to the mainboard 2 corresponding to the specific sub- Baseboard Management Controller 21 is turned up.
In the present embodiment, further include that the master control Baseboard Management Controller 21 does not receive all sub- mainboard management in a preset time
The wherein specific sub- Baseboard Management Controller 21 of controller 21 returns the temperature information that the temperature sensor 22 corresponding to it senses
When, detect whether the specific sub- Baseboard Management Controller 21 has unlatching, if it is, the master control Baseboard Management Controller 20
The specific sub- Baseboard Management Controller measured can be subtracted according to the whole total power consumption of all mainboards 2 measured
All sub- Baseboard Management Controllers 21 and master control Baseboard Management Controller 20 except 21 corresponding mainboard 2 measurement consumption
Electricity calculates the calculating power consumption of the mainboard 2 corresponding to the specific sub- Baseboard Management Controller 21, and calculates power consumption at it
When amount is more than the default power consumption upper limit corresponding to it, rotating speed to the full speed that the fan group 3 corresponding to it is turned up rotates, meaning
It at full throttle rotates, if not, the specific sub- Baseboard Management Controller 21 should be not returned doing tough body renewal
Pass the temperature information that the temperature sensor 22 corresponding to it senses, be considered as it is normal, it is not necessary that the fan corresponding to it is turned up
The rotating speed of group 3.
Referring to Fig. 2, the present invention also provides a kind of rack control method for fan, pass through production rack wind shown in FIG. 1
It fans control system to execute, the rack control method for fan includes the following steps:
Step 100:The master control Baseboard Management Controller 20 periodically triggers all sub- mainboard pipes via interruption SMI
Reason controller 21 return respectively its temperature information that senses of corresponding temperature sensor 22.
Step 200：Whether the detection of master control Baseboard Management Controller 20 does not receive specific son in a preset time
Baseboard Management Controller 21 returns the temperature information that the temperature sensor 22 corresponding to it senses, if it is thening follow the steps 300,
If it is not, then continuing to execute this step.
Step 300：The master control Baseboard Management Controller 20 calculates corresponding to the specific sub- Baseboard Management Controller 21
Mainboard 2 calculating power consumption.In this step, the master control Baseboard Management Controller 20 can be according to all masters measured
The whole total power consumption of plate subtracts all sub- mainboard management except the specific sub- Baseboard Management Controller 21 measured
Controller 21 and master control Baseboard Management Controller 20 corresponding mainboard 2 measurement power consumption it is main to calculate the specific son
The calculating power consumption of mainboard 2 corresponding to board management controller 21.
Step 400：The master control Baseboard Management Controller 21 judges corresponding to the specific sub- Baseboard Management Controller 21
Mainboard 2 calculating power consumption whether more than a default power consumption upper limit, if it is thening follow the steps 500, if it is not, then returning
Step 200.In this step, (FIELD REPLACEABLE UNIT show the transmission of master control Baseboard Management Controller 21 FRU
Field replaceable units) the corresponding default power consumption upper limits of 2 institute of all mainboards are obtained, to read the specific sub- mainboard pipe
Manage controller 21 corresponding to mainboard 2 the default power consumption upper limit, and with corresponding to the specific sub- Baseboard Management Controller 21
The calculating power consumption of mainboard 2 make comparisons to execute judgement.
Step 500：The master control Baseboard Management Controller 21 is turned up corresponding to the specific sub- Baseboard Management Controller 21
Mainboard 2 corresponding to the fan group 3 rotating speed, be then returned to step 200.
In the present embodiment, can further comprise between step 200 and step 300：In all sub- mainboard management controls
The wherein specific sub- Baseboard Management Controller 21 of device 21 processed does not return the temperature information of the sensing of the temperature sensor 22 corresponding to it
When, the master control Baseboard Management Controller 20 detects whether the specific sub- Baseboard Management Controller 21 has unlatching, if it is,
Step 300 is executed, if otherwise return to step 200.
In conclusion the various embodiments described above and diagram be only presently preferred embodiments of the present invention, but cannot with restriction
The range of present invention implementation should all belong to of the invention special that is, generally according to equivalent changes and modifications made by claims of the present invention
In the range of profit covers.
Claims (10)
1. a kind of rack fan control system, which is characterized in that including：
One backboard；
Several mainboards, are separately connected the backboard, and one of several described mainboards person has a master control mainboard pipe
Controller is managed, and other mainboards are respectively provided with a sub- Baseboard Management Controller, the master control mainboard management of several mainboards
Controller and several sub- Baseboard Management Controllers are connected respectively an at least temperature sensor, the master control mainboard management
Controller is connect with several sub- Baseboard Management Controllers respectively by the backboard；And
Several fan groups connect the corresponding master control Baseboard Management Controller by the backboard；
Wherein, each temperature sensor senses the temperature information of its corresponding mainboard and in real time through the sub- mainboard corresponding to it
The temperature information is transferred to the master control Baseboard Management Controller connected to it, the master control mainboard pipe by Management Controller
Reason controller periodically triggers all sub- Baseboard Management Controllers via interruption SMI and returns its corresponding temperature of institute respectively
The temperature information that sensor senses is spent to adjust separately the corresponding fan of each sub- Baseboard Management Controller institute
The rotating speed of group, and the master control Baseboard Management Controller does not receive all sub- Baseboard Management Controllers in a preset time
When wherein one specific sub- Baseboard Management Controller returns the temperature information of the sensing of the temperature sensor corresponding to it, the spy is calculated
The calculating power consumption of mainboard corresponding to stator Baseboard Management Controller, corresponding to the specific sub- Baseboard Management Controller
When the calculating power consumption of mainboard is more than the default power consumption upper limit corresponding to it, the specific sub- mainboard management control is only turned up
The rotating speed of the fan group corresponding to mainboard corresponding to device.
2. rack fan control system according to claim 1, which is characterized in that in the specific sub- mainboard management control
When the calculating power consumption of mainboard corresponding to device is more than the default power consumption upper limit corresponding to it, that is, the specific son is turned up
The rotating speed of the fan group corresponding to mainboard corresponding to Baseboard Management Controller to full speed rotates.
3. rack fan control system according to claim 1, which is characterized in that the master control Baseboard Management Controller exists
The wherein one specific sub- Baseboard Management Controller for not receiving all sub- Baseboard Management Controllers in the preset time returns its institute
When the temperature information of corresponding temperature sensor sensing, detect whether the specific sub- Baseboard Management Controller has unlatching, if inspection
It is when opening to survey result, and the master control Baseboard Management Controller calculates the mainboard corresponding to the specific sub- Baseboard Management Controller
Calculating power consumption.
4. rack fan control system according to claim 1, which is characterized in that the master control Baseboard Management Controller root
It is subtracted according to the whole total power consumption of all mainboards measured except the specific sub- Baseboard Management Controller measured
All sub- Baseboard Management Controllers and master control Baseboard Management Controller the measurement power consumption of corresponding mainboard calculate
The calculating power consumption of mainboard corresponding to the specific sub- Baseboard Management Controller.
5. rack fan control system according to claim 1, which is characterized in that the master control Baseboard Management Controller is saturating
It crosses FRU and obtains the corresponding default power consumption upper limit of all mainboard institutes, to read the specific sub- Baseboard Management Controller
The default power consumption upper limit of corresponding mainboard, and consumed with the calculating of the mainboard corresponding to the specific sub- Baseboard Management Controller
Electricity is made comparisons to execute judgement.
6. a kind of rack control method for fan is executed, the rack by rack fan control system described in claim 1
Fan control system includes a backboard；Several mainboards are separately connected one of the backboard, several mainboards
Person has a master control Baseboard Management Controller, and other mainboards are respectively provided with a sub- Baseboard Management Controller, several mainboards
The master control Baseboard Management Controller and several sub- Baseboard Management Controllers be connected respectively an at least temperature sensing
Device；And several fan groups, the corresponding master control Baseboard Management Controller is connected by the backboard, feature exists
In the rack control method for fan includes the following steps:
A. the master control Baseboard Management Controller periodically triggers all sub- Baseboard Management Controllers via interruption SMI and distinguishes
Return its temperature information that senses of corresponding temperature sensor；
B. whether the master control Baseboard Management Controller detection does not receive all sub- Baseboard Management Controllers in a preset time
Wherein one specific sub- Baseboard Management Controller when returning the temperature information of the sensing of the temperature sensor corresponding to it, if it is
Step c is executed, if it is not, then continuing to execute this step；
C. the master control Baseboard Management Controller calculates the calculating consumption of the mainboard corresponding to the specific sub- Baseboard Management Controller
Electricity；
D. the master control Baseboard Management Controller judges the calculating consumption of the mainboard corresponding to the specific sub- Baseboard Management Controller
Whether electricity is more than a default power consumption upper limit, if it is e is thened follow the steps, if it is not, then return to step b；And
E. the master control Baseboard Management Controller is turned up corresponding to the mainboard corresponding to the specific sub- Baseboard Management Controller
The rotating speed of the fan group.
7. rack control method for fan according to claim 6, which is characterized in that can be between step b and step c
One step includes：The temperature corresponding to it is not returned in the wherein specific sub- Baseboard Management Controller of all sub- Baseboard Management Controllers
When the temperature information of sensor sensing, whether the master control Baseboard Management Controller detects the specific sub- Baseboard Management Controller
There is unlatching, if so, c is thened follow the steps, if otherwise return to step b.
8. rack control method for fan according to claim 6, which is characterized in that in step e, the specific sub- mainboard
When the calculating power consumption of mainboard corresponding to Management Controller is more than the default power consumption upper limit corresponding to it, that is, institute is turned up
Rotating speed to the full speed for stating the fan group corresponding to the mainboard corresponding to specific sub- Baseboard Management Controller rotates.
9. rack control method for fan according to claim 6, which is characterized in that in step c, the master control mainboard pipe
Reason controller subtracts the specific sub- mainboard management measured according to the whole total power consumption of all mainboards measured
All sub- Baseboard Management Controllers and master control Baseboard Management Controller except controller corresponding mainboard measurement consumption
Electricity calculates the calculating power consumption of the mainboard corresponding to the specific sub- Baseboard Management Controller.
10. rack control method for fan according to claim 6, which is characterized in that in step d, the master control mainboard
Management Controller obtains the corresponding default power consumption upper limit of all mainboard institutes through FRU, main to read the specific son
The default power consumption upper limit of mainboard corresponding to board management controller, and with corresponding to the specific sub- Baseboard Management Controller
The calculating power consumption of mainboard is made comparisons to execute judgement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937808.7A CN106884808B (en) | 2015-12-15 | 2015-12-15 | Rack fan control system and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937808.7A CN106884808B (en) | 2015-12-15 | 2015-12-15 | Rack fan control system and its method |
Publications (2)
| Publication Number | Publication Date |
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| CN106884808A CN106884808A (en) | 2017-06-23 |
| CN106884808B true CN106884808B (en) | 2018-08-10 |
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| CN201510937808.7A Expired - Fee Related CN106884808B (en) | 2015-12-15 | 2015-12-15 | Rack fan control system and its method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107333444A (en) * | 2017-07-25 | 2017-11-07 | 成都华为技术有限公司 | The radiator structure and method of a kind of equipment machine frame |
| CN109654053B (en) * | 2018-11-26 | 2020-05-12 | 武汉光迅科技股份有限公司 | Fan control method and system of rack equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100541392C (en) * | 2006-10-30 | 2009-09-16 | 英业达股份有限公司 | Temperature detecting system and method |
| CN102312851A (en) * | 2010-07-05 | 2012-01-11 | 英业达股份有限公司 | Fan speed control device |
| CN102478006A (en) * | 2010-11-30 | 2012-05-30 | 英业达股份有限公司 | Fan speed control system and method for reading rotating speed of fan thereof |
| CN103133384A (en) * | 2011-12-05 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Control system and method thereof |
| TW201529991A (en) * | 2014-01-16 | 2015-08-01 | Hon Hai Prec Ind Co Ltd | Controlling system and method for fan |
| US9971609B2 (en) * | 2014-06-05 | 2018-05-15 | American Megatrends, Inc. | Thermal watchdog process in host computer management and monitoring |
| CN104963882B (en) * | 2015-07-07 | 2017-08-15 | 浙江宇视科技有限公司 | Blower module control method and system in a kind of dual control storage system |
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