CN206647293U - A kind of server fan rotating speed control system based on CPLD - Google Patents
A kind of server fan rotating speed control system based on CPLD Download PDFInfo
- Publication number
- CN206647293U CN206647293U CN201720203678.9U CN201720203678U CN206647293U CN 206647293 U CN206647293 U CN 206647293U CN 201720203678 U CN201720203678 U CN 201720203678U CN 206647293 U CN206647293 U CN 206647293U
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- fan
- rotating speed
- management controller
- control system
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- 238000007726 management method Methods 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 13
- 230000007257 malfunction Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The utility model provides a kind of server fan rotating speed control system based on CPLD, including baseboard management controller, CPLD, some fans；Baseboard management controller is connected with CPLD by I2C buses, and CPLD has two-way to be connected with each fan, the speed controling signal sent all the way for CPLD to fan；The speed feedback signal sent all the way for fan to CPLD.The utility model directly controls rotation speed of the fan using CPLD, on the one hand can support the complete control function of fan（Start set fixed rotating speed, it is normal when rotating speed control, baseboard management controller failure when rotating speed control）, another aspect CPLD is with abundant GPIO resources, the convenient support to other functions of modules.
Description
Technical field
The utility model belongs to server fan control field, and in particular to a kind of server fan rotating speed based on CPLD
Control system.
Background technology
, it is necessary to be radiated using fan in the design of high-end server, respective chip, equipment etc. are avoided because temperature
Spend high and fail or even damage.System needs to determine the rotating speed of fan according to current temperature regime.At present, the rotating speed of fan
Control typically passes through two signals：Speed controling signal and speed feedback signal.The two contributes to transmit PWM count evidence, rotating speed
Control signal controls rotation speed of the fan by adjusting PWM dutycycle, and the actual speed of fan is passed through PWM by speed feedback signal
Dutycycle feeds back to fan governor.
In existing design, typically there is the method for two kinds of control rotating speeds.The first, by BMC（Baseboard management controller）
The fan control signal and speed feedback signal of fan are directly connected to, using special algorithm to the direct control of rotation speed of the fan.Second
Kind, the fan control signal and speed feedback signal of fan are connected using special fan control chip, and connect by I2C
BMC obtains speed setting value.
The shortcomings that the first design, is, when in BMC initialization procedures, can not sending speed controling signal.Current solution
Certainly scheme is increase logic circuit, and control fan rotates at full speed in this stage.Machine noise is excessive when can so cause to start shooting.
Second design the shortcomings that be, special fan control chip except support control rotation speed of the fan pin in addition to,
The GPIO that freely programmable uses is less.When thering are other logic control functional requirements to be on plate, it is necessary to newly increase device to realize.
This is prior art weak point.Therefore, for drawbacks described above of the prior art, there is provided design one kind is based on
CPLD server fan rotating speed control system, is necessary.
The content of the invention
The purpose of this utility model is, the defects of management for above-mentioned server fan rotating speed, there is provided one kind is based on
CPLD server fan rotating speed control system is to solve above-mentioned technical problem.
To achieve the above object, the utility model provides following technical scheme：
A kind of server fan rotating speed control system based on CPLD, including baseboard management controller, CPLD, if dry-air blast
Fan；
Baseboard management controller is connected with CPLD by I2C buses, and CPLD has two-way to be connected with each fan, all the way for
The speed controling signal that CPLD is sent to fan；The speed feedback signal sent all the way for fan to CPLD.
Further, the CPLD also includes redundant input delivery outlet.
Further, the CPLD is according to the rotating speed of the condition selecting fan of baseboard management controller.
Further, the state of substrate manager includes init state, normal operating conditions, malfunction.
Further, when baseboard management controller is in init state, CPLD controls the rotating speed of fan to turn to be default
Speed；When in the just upper electricity of system, baseboard management controller initialization procedure, CPLD reads what is sent less than baseboard management controller
Rotation speed of the fan setting value, now by rotation speed of the fan control on a preset value.
Further, when baseboard management controller is in normal operating conditions, it is substrate that CPLD, which controls the rotating speed of fan,
The rotating speed that Management Controller periodically transmits；After the completion of baseboard management controller initialization, baseboard management controller can periodically pass through
Rotation speed of the fan setting value is transmitted to CPLD by I2C buses, and now CPLD controls rotation speed of the fan in the setting value.
Further, when baseboard management controller is in malfunction, CPLD control fans rotate at full speed；When substrate pipe
When managing controller initialization to complete, but setting value do not sent within a period of time（When such case occurs, usually substrate management
There is failure in controller）, CPLD will control fan at full speed rotate.
Further, the server is four road servers, and fan number is four multiple.
Further, the CPLD controls the rotating speed of fan by pid algorithm；CPLD by pid algorithm, constantly carry out to
Fan sends speed controling signal, reads speed feedback signal, resets speed controling signal according to the actual speed of feedback；
Described pid algorithm is known in the art algorithm, will not be repeated here.
The beneficial effects of the utility model are：
The utility model directly controls rotation speed of the fan using CPLD, on the one hand can support the complete control function of fan
（Start set fixed rotating speed, it is normal when rotating speed control, baseboard management controller failure when rotating speed control）, on the other hand
CPLD has abundant GPIO resources, the convenient support to other functions of modules.
In addition, the utility model design principle is reliable, and it is simple in construction, there is very extensive application prospect.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, its beneficial effect implemented
Fruit is also obvious.
Brief description of the drawings
Fig. 1 is the utility model principle figure；
Wherein, 1. baseboard management controller；2.CPLD；3. fan.
Embodiment：
It is specific below in conjunction with this to enable the purpose of this utility model, feature, advantage more obvious and understandable
Accompanying drawing in embodiment, the technical scheme in the utility model is clearly and completely described.
As shown in figure 1, the utility model provides a kind of server fan rotating speed control system based on CPLD, including substrate
Management Controller 1, CPLD 2, some fans 3；The server is four road servers, and fan number is four.
Baseboard management controller 1 is connected with CPLD 2 by I2C buses, and CPLD 1 has two-way to be connected with each fan 3, and one
Road is the speed controling signal that CPLD 2 is sent to fan 3；The speed feedback signal sent all the way for fan 3 to CPLD 2；Institute
Stating CPLD 2 also includes redundant input delivery outlet；
The CPLD 2 is according to the rotating speed of the condition selecting fan 3 of baseboard management controller 1；
The state of substrate manager 1 includes init state, normal operating conditions, malfunction.
When baseboard management controller 1 is in init state, it is preset rotation speed that CPLD 2, which controls the rotating speed of fan 3,；When
The just upper electricity of system, when in the initialization procedure of baseboard management controller 1, CPLD 2 reads what is sent less than baseboard management controller 1
Rotation speed of the fan setting value, now by the control of the rotating speed of fan 3 on a preset value；
When baseboard management controller 1 is in normal operating conditions, it is substrate management control that CPLD 2, which controls the rotating speed of fan 3,
The rotating speed that device 1 processed periodically transmits；After the completion of baseboard management controller 1 initializes, baseboard management controller 1 can periodically pass through I2C
Rotation speed of the fan setting value is transmitted to CPLD 2 by bus, and now CPLD 2 controls the rotating speed of fan 3 in the setting value；
When baseboard management controller 1 is in malfunction, CPLD 2 controls fan 3 to rotate at full speed；When substrate management control
Device 1 processed initialization is completed, but when not sending setting value within a period of time（When such case occurs, usually substrate management control
There is failure in device 1 processed）, CPLD 2 by control fan 3 rotate at full speed；
The CPLD 2 controls the rotating speed of fan 3 by pid algorithm；CPLD 2 is constantly carried out to fan by pid algorithm
3 send speed controling signal, read speed feedback signal, reset speed controling signal according to the actual speed of feedback；Institute
The pid algorithm stated is known in the art algorithm, will not be repeated here.
CPLD (Complex Programmable Logic Device) CPLD, be from PAL and
The device that GAL device developments come out, comparatively scale is big, complicated, belongs to large scale integrated circuit scope.It is a kind of use
Family according to respective the need and voluntarily digital integrated electronic circuit of constitutive logic function.
GPIO, General Purpose Input Output（Universal input/output）Referred to as GPIO, each GPIO
Port can be each configured to input or export by software.
BMC, baseboard management controller.
Embodiment of the present utility model is illustrative and not restrictive, and above-described embodiment is only to aid in understanding this reality
With new, therefore the utility model is not limited to the embodiment described in embodiment, every by those skilled in the art's root
The other embodiments drawn according to the technical solution of the utility model, also belong to the scope of the utility model protection.
Claims (8)
- A kind of 1. server fan rotating speed control system based on CPLD, it is characterised in that, including baseboard management controller, CPLD, some fans；Baseboard management controller is connected with CPLD by I2C buses, and CPLD has two-way to be connected with each fan, all the way for CPLD to The speed controling signal that fan is sent；The speed feedback signal sent all the way for fan to CPLD.
- 2. a kind of server fan rotating speed control system based on CPLD as claimed in claim 1, it is characterised in that described CPLD also includes redundant input delivery outlet.
- 3. a kind of server fan rotating speed control system based on CPLD as claimed in claim 1, it is characterised in that described CPLD is according to the rotating speed of the condition selecting fan of baseboard management controller.
- A kind of 4. server fan rotating speed control system based on CPLD as claimed in claim 1, it is characterised in that substrate pipe The state of reason device includes init state, normal operating conditions, malfunction.
- 5. a kind of server fan rotating speed control system based on CPLD as claimed in claim 4, it is characterised in that work as substrate When Management Controller is in init state, it is preset rotation speed that CPLD, which controls the rotating speed of fan,.
- 6. a kind of server fan rotating speed control system based on CPLD as claimed in claim 4, it is characterised in that work as substrate When Management Controller is in normal operating conditions, CPLD controls the rotating speed of fan to turn for what baseboard management controller periodically transmitted Speed.
- 7. a kind of server fan rotating speed control system based on CPLD as claimed in claim 4, it is characterised in that work as substrate When Management Controller is in malfunction, CPLD control fans rotate at full speed.
- A kind of 8. server fan rotating speed control system based on CPLD as claimed in claim 1, it is characterised in that the clothes The business road servers of Qi Wei tetra-, fan number are four multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720203678.9U CN206647293U (en) | 2017-03-03 | 2017-03-03 | A kind of server fan rotating speed control system based on CPLD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720203678.9U CN206647293U (en) | 2017-03-03 | 2017-03-03 | A kind of server fan rotating speed control system based on CPLD |
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| Publication Number | Publication Date |
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| CN206647293U true CN206647293U (en) | 2017-11-17 |
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| CN201720203678.9U Expired - Fee Related CN206647293U (en) | 2017-03-03 | 2017-03-03 | A kind of server fan rotating speed control system based on CPLD |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939718A (en) * | 2017-12-21 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of server fan method of controlling rotation based on CPLD FPGA |
| CN108038019A (en) * | 2017-12-25 | 2018-05-15 | 曙光信息产业(北京)有限公司 | A kind of automatically restoring fault method and system of baseboard management controller |
| CN108038041A (en) * | 2017-12-19 | 2018-05-15 | 曙光信息产业(北京)有限公司 | Case radiation management system |
| CN108170575A (en) * | 2017-12-25 | 2018-06-15 | 曙光信息产业(北京)有限公司 | A kind of control method and device of server radiating |
| CN108457888A (en) * | 2018-03-01 | 2018-08-28 | 郑州云海信息技术有限公司 | A kind of server fan fault detection method, apparatus and system |
| CN108757536A (en) * | 2018-05-25 | 2018-11-06 | 联想(北京)有限公司 | A kind of electronic equipment and control method for fan |
| CN109026809A (en) * | 2018-08-23 | 2018-12-18 | 郑州云海信息技术有限公司 | A kind of fan control system, method and CPLD |
| CN109162953A (en) * | 2018-11-01 | 2019-01-08 | 郑州云海信息技术有限公司 | A kind of fan control device and server |
| CN109356875A (en) * | 2018-12-18 | 2019-02-19 | 广东浪潮大数据研究有限公司 | A kind of server fan control method, apparatus and system |
| CN109491237A (en) * | 2018-11-20 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of fan of the single control storage equipment during booting powers on surely controls method and device |
| CN109488631A (en) * | 2018-11-28 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of fan control device and its method |
| CN109611368A (en) * | 2018-12-13 | 2019-04-12 | 浪潮(北京)电子信息产业有限公司 | A kind of fan control system for storage system, method and device |
| CN109826822A (en) * | 2019-04-11 | 2019-05-31 | 苏州浪潮智能科技有限公司 | A kind of control method for fan and relevant apparatus |
| CN109882440A (en) * | 2019-04-16 | 2019-06-14 | 苏州浪潮智能科技有限公司 | A kind of fan rotation speed control apparatus and control method |
| CN110469529A (en) * | 2018-05-11 | 2019-11-19 | 佛山市顺德区顺达电脑厂有限公司 | Server fan control system |
| CN110985427A (en) * | 2019-11-29 | 2020-04-10 | 苏州浪潮智能科技有限公司 | Modular fan circuit and control method |
| CN113048090A (en) * | 2021-03-12 | 2021-06-29 | 山东英信计算机技术有限公司 | Fan rotating speed control method and system |
| CN113374724A (en) * | 2021-07-12 | 2021-09-10 | 恒安嘉新（北京）科技股份公司 | Fan control system and method based on multiple temperature nodes |
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- 2017-03-03 CN CN201720203678.9U patent/CN206647293U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108038041A (en) * | 2017-12-19 | 2018-05-15 | 曙光信息产业(北京)有限公司 | Case radiation management system |
| CN107939718A (en) * | 2017-12-21 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of server fan method of controlling rotation based on CPLD FPGA |
| CN108038019A (en) * | 2017-12-25 | 2018-05-15 | 曙光信息产业(北京)有限公司 | A kind of automatically restoring fault method and system of baseboard management controller |
| CN108170575A (en) * | 2017-12-25 | 2018-06-15 | 曙光信息产业(北京)有限公司 | A kind of control method and device of server radiating |
| CN108038019B (en) * | 2017-12-25 | 2021-06-11 | 曙光信息产业(北京)有限公司 | Automatic fault recovery method and system for substrate management controller |
| CN108457888A (en) * | 2018-03-01 | 2018-08-28 | 郑州云海信息技术有限公司 | A kind of server fan fault detection method, apparatus and system |
| CN110469529A (en) * | 2018-05-11 | 2019-11-19 | 佛山市顺德区顺达电脑厂有限公司 | Server fan control system |
| CN108757536A (en) * | 2018-05-25 | 2018-11-06 | 联想(北京)有限公司 | A kind of electronic equipment and control method for fan |
| CN109026809A (en) * | 2018-08-23 | 2018-12-18 | 郑州云海信息技术有限公司 | A kind of fan control system, method and CPLD |
| CN109162953A (en) * | 2018-11-01 | 2019-01-08 | 郑州云海信息技术有限公司 | A kind of fan control device and server |
| CN109491237A (en) * | 2018-11-20 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of fan of the single control storage equipment during booting powers on surely controls method and device |
| CN109488631A (en) * | 2018-11-28 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of fan control device and its method |
| CN109611368A (en) * | 2018-12-13 | 2019-04-12 | 浪潮(北京)电子信息产业有限公司 | A kind of fan control system for storage system, method and device |
| CN109356875A (en) * | 2018-12-18 | 2019-02-19 | 广东浪潮大数据研究有限公司 | A kind of server fan control method, apparatus and system |
| CN109826822A (en) * | 2019-04-11 | 2019-05-31 | 苏州浪潮智能科技有限公司 | A kind of control method for fan and relevant apparatus |
| CN109882440A (en) * | 2019-04-16 | 2019-06-14 | 苏州浪潮智能科技有限公司 | A kind of fan rotation speed control apparatus and control method |
| CN110985427A (en) * | 2019-11-29 | 2020-04-10 | 苏州浪潮智能科技有限公司 | Modular fan circuit and control method |
| CN113048090A (en) * | 2021-03-12 | 2021-06-29 | 山东英信计算机技术有限公司 | Fan rotating speed control method and system |
| CN113048090B (en) * | 2021-03-12 | 2023-02-28 | 山东英信计算机技术有限公司 | Fan rotating speed control method and system |
| CN113374724A (en) * | 2021-07-12 | 2021-09-10 | 恒安嘉新（北京）科技股份公司 | Fan control system and method based on multiple temperature nodes |
| CN113374724B (en) * | 2021-07-12 | 2023-12-15 | 恒安嘉新（北京）科技股份公司 | Fan control system and method based on multiple temperature nodes |
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| CF01 | Termination of patent right due to non-payment of annual fee |