CN109162953A - A kind of fan control device and server - Google Patents
A kind of fan control device and server Download PDFInfo
- Publication number
- CN109162953A CN109162953A CN201811295926.2A CN201811295926A CN109162953A CN 109162953 A CN109162953 A CN 109162953A CN 201811295926 A CN201811295926 A CN 201811295926A CN 109162953 A CN109162953 A CN 109162953A
- Authority
- CN
- China
- Prior art keywords
- cpld
- switch chip
- multichannel switch
- bmc
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
Abstract
This application discloses a kind of fan control devices, comprising: CPLD and multichannel Switch chip；Wherein, BMC is connected with n first input end of the input terminal of CPLD and multichannel Switch chip respectively, the output end of CPLD is connected with the gating port of multichannel Switch chip, n the second input terminals of multichannel Switch chip are connected with VCC, n output end of multichannel Switch chip is connected with n fan respectively, n >=2.Obviously, fan control device in the application, only need to occupy two ports CPLD, the revolving speed of fan can be controlled, compared with the prior art, for 2*N+1 port for needing to occupy CPLD, the occupancy quantity to the port CPLD is greatly reduced, the waste to CPLD pin resource is also avoided.Correspondingly, a kind of server disclosed in the present application, equally has above-mentioned beneficial effect.
Description
Technical field
The present invention relates to server communication technical field, in particular to a kind of fan control device and server.
Background technique
With the continuous development of science and technology, the frequency that server uses is higher and higher.Since server is in use process
In, a large amount of heat can be given out in cabinet, thus it is possible to no be rapidly discharged server for these heats, it is server
Carry out the precondition of steady operation.
As shown in Figure 1, being the structural schematic diagram of fan control device in the prior art.In Fig. 1, BMC
N number of output end and CPLD (Complex of (Baseboard Manager Controller, baseboard management controller)
Programmable Logic Device, Complex Programmable Logic Devices) N number of input terminal be connected, an output end of BMC
It is connected with the input terminal of CPLD, N number of output end of CPLD is connected with N number of fan.In Fig. 1, if BMC is worked normally, BMC
One group of watchdog signal can be regularly sent to CPLD, and send N group PWM (Pulse Width Modulation, pulse width tune
System) signal is to CPLD, at this point, CPLD can be directly transferred to N group pwm signal in N number of fan, so that fan keeps normal fortune
Row, and therefore ensure that the internal heat dissipating of machine box for server.If BMC is when in an abnormal state, BMC is regularly sent without normal direction CPLD
Watchdog signal, at this point, CPLD can the N group pwm signal that sends of adapter tube BMC, and control by CPLD the revolving speed of N number of fan.Obviously,
In the prior art, BMC needs to occupy the 2*N+1 input/output end port of CPLD, greatly when controlling rotation speed of the fan
The quantity of CPLD input/output end port is occupied, the waste to CPLD pin resource is also resulted in.It can be seen that how to provide
A kind of better fan control device, to reduce to the occupancy quantity of CPLD input/output end port, be those skilled in the art urgently
Problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of fan control device and server, to reduce control fan
When revolving speed, to the occupancy quantity of CPLD input/output end port.Its concrete scheme is as follows:
A kind of fan control device, comprising: CPLD and multichannel Switch chip；
Wherein, the BMC n first input end phase with the input terminal of the CPLD and the multichannel Switch chip respectively
Even, the output end of the CPLD is connected with the gating port of the multichannel Switch chip, the multichannel Switch chip
N the second input terminals be connected with VCC, n output end of the multichannel Switch chip is connected with n fan respectively, n >=
2。
Preferably, further includes:
It is connected with the CPLD, for prompting the BMC to be in the warning device of abnormality.
Preferably, the warning device is specially buzzer and/or indicator light.
Preferably, the model of the multichannel Switch chip is specially SP6T Switch chip.
Preferably, further includes:
It is connected with CPLD communication, the memory of the operation information for storing the BMC.
Preferably, the memory is specially cloud storage.
Preferably, the multichannel Switch chip is equipped with silk-screen label.
Preferably, further includes:
It is connected with the CPLD, when the control data for sending as the BMC to the CPLD are unsatisfactory for preset condition,
The data interceptor that the control data are intercepted.
Correspondingly, the invention also discloses a kind of server, including fan control device as previously disclosed.
As it can be seen that in the present invention, BMC is inputted with the n of the input terminal of CPLD and multichannel Switch chip first respectively
End is connected, and the output end of CPLD is connected with the gating port of multichannel Switch chip, and n second of multichannel Switch chip
Input terminal is connected with VCC, and n output end of multichannel Switch chip is connected with n fan respectively, n >=2.So, work as BMC
When in normal condition, BMC can send corresponding pwm signal to multichannel Switch chip by CPLD, at this point, N number of fan
Revolving speed can directly be controlled by BMC；And when BMC it is when in an abnormal state, CPLD then directly adapter tube BMC transmission PWM
Signal, and corresponding control signal is sent to multichannel Switch chip, so that n second input of multichannel Switch chip
End all draws and arrives VCC, so that the pwm signal that fan receives is high level state always, so that fan
Revolving speed maintains maximum speed state, and thereby ensures that the heat dissipation effect of fan.Obviously, in fan control device of the invention
In, only used an input terminal and an output end of CPLD, totally two ports, compared with the prior art in, fan control
For device needs to occupy the 2*N+1 input/output end port of CPLD, greatly reduces and CPLD input/output end port is accounted for
With quantity, meanwhile, also avoid the waste to CPLD pin resource.Correspondingly, the invention also discloses a kind of servers, equally
With above-mentioned beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the fan control device in the prior art；
Fig. 2 is the structural schematic diagram of multichannel Switch chip provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of fan control device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In existing fan control device, during controlling rotation speed of the fan, it is a large amount of to occupy CPLD
Input/output end port, to cause the waste of CPLD pin resource.And the object of the present invention is to provide a kind of fan control
Device, to reduce the occupancy quantity to CPLD input/output end port, to reduce the waste to CPLD pin resource.In order to make
Those skilled in the art more fully understand the present invention, elaborate with reference to the accompanying drawings and detailed description to the present invention.
The embodiment of the invention discloses a kind of fan control devices, comprising: CPLD and multichannel Switch chip；
Wherein, BMC is connected with n first input end of the input terminal of CPLD and multichannel Switch chip respectively, CPLD
Output end be connected with the gating port of multichannel Switch chip, the n of multichannel Switch chip the second input terminals and VCC
It is connected, n output end of multichannel Switch chip is connected with n fan respectively, n >=2.
As shown in Fig. 2, being a kind of structural schematic diagram of the multichannel Switch chip provided in the present embodiment.Work as in Fig. 2
In, A1, A2 ... An are N number of first input end of multichannel Switch chip, and B1, B2 ... Bn are multichannel Switch chip
N number of second input terminal, S is the gating port of multichannel Switch chip, and Y1, Y2 ... Yn are multichannel Switch chip
N number of output end.
As shown in figure 3, in the present embodiment, be by the output end of BMC respectively with the input terminal of CPLD and multichannel Switch
A1, A2 ... An of chip are connected, and B1, B2 ... Bn of multichannel Switch chip are connected with VCC, by the output end of CPLD
It is connected with the S of multichannel Switch chip, Y1, Y2 ... Yn of multichannel Switch chip is connected with N number of fan.
So, when BMC is worked normally, BMC periodically can send watchdog signal to CPLD, and pass through A1, A2 ... An
N group pwm signal is sent to CPLD, at this point, CPLD can send high level, multichannel Switch chip to multichannel Switch chip
The pwm signal access between BMC and N number of fan can be gated, under such state, Y1=A1 on multichannel Switch chip,
Y2=A2 ..., Yn=An, the revolving speed of N number of fan directly controls by BMC, thereby may be ensured that the normal operation of N number of fan.
When BMC abnormal work, BMC no longer timing sends watchdog signal to CPLD, at this point, CPLD adapter tube BMC is sent
N group pwm signal, and send low level to multichannel Switch chip, at this point, Y1=B1 on multichannel Switch chip,
Y2=B2 ..., Yn=Bn, be equivalent to and all draw N number of input terminal of multichannel Switch chip to VCC, fan connects at this time
The pwm signal received can be constantly in high level state, so that the revolving speed of fan maintains maximum speed state, thus one
Come, even if BMC is in abnormal operation, through this embodiment in fan control device, it is also ensured that the heat dissipation of fan
Effect.Moreover, fan control device provided by the present embodiment only takes up during controlling rotation speed of the fan
Two pins of CPLD a, that is, input terminal and an output end of CPLD.
As it can be seen that in the present embodiment, BMC is defeated with the n of the input terminal of CPLD and multichannel Switch chip a first respectively
Enter end to be connected, the output end of CPLD is connected with the gating port of multichannel Switch chip, the n of multichannel Switch chip a the
Two input terminals are connected with VCC, and n output end of multichannel Switch chip is connected with n fan respectively, n >=2.So, when
When BMC is in normal condition, BMC can send corresponding pwm signal to multichannel Switch chip by CPLD, at this point, N number of wind
The revolving speed of fan can be controlled directly by BMC；And when BMC it is when in an abnormal state, CPLD then directly adapter tube BMC transmission
Pwm signal, and corresponding control signal is sent to multichannel Switch chip, so that n second of multichannel Switch chip
Input terminal all draws and arrives VCC, so that the pwm signal that fan receives is high level state always, so that wind
The revolving speed of fan maintains maximum speed state, and thereby ensures that the heat dissipation effect of fan.Obviously, in the fan control of the present embodiment
In device processed, only used an input terminal and an output end of CPLD, totally two ports, compared with the prior art in, wind
For fan control device needs to occupy the 2*N+1 input/output end port of CPLD, greatly reduce to CPLD input/output terminal
The occupancy quantity of mouth, meanwhile, also avoid the waste to CPLD pin resource.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment.Specifically, the fan
Control device further include:
It is connected with CPLD, for prompting BMC to be in the warning device of abnormality.
It is also contemplated that BMC will be unable to regulate and control the revolving speed of fan, if wind when BMC is when in an abnormal state
It fans out of service, it will leading to the heat of server internal can not be discharged, so that the temperature of server is excessively high, when serious very
The crash of server can extremely be caused, so, in the present embodiment, in order to avoid the generation of this case, also in the fan control
The warning device for prompting BMC to be in abnormality is provided in device, so that staff can know BMC in time
Current operating conditions also thus reduce and broken down brought economy by BMC to reduce the probability of contingency generation
Loss.In practical application, the warning information of warning device prompt can be sound, is also possible to text, can also be lamp
Light, or come to prompt warning information to staff in the form of other early warning, the present embodiment does not limit it specifically.
As a preferred embodiment, warning device is specially buzzer and/or indicator light.
It is also contemplated that buzzer not only has the advantages that small in size, high sensitivity, low energy consumption, moreover, buzzer
It is cheap, so, in the present embodiment, warning device can be set to buzzer, can not only reached to work in this way
Personnel prompt the purpose of early warning, moreover, can also substantially reduce the design cost of warning device using buzzer.
Alternatively, be that warning device is set to indicate that lamp, so, what staff can be issued using indicator light
Light judges whether BMC is in normal operating conditions, moreover, can also be issued not using indicator light in practical application
The different working condition of BMC is shown with the light of color, when breaking down searched to BMC to reduce staff with this
Between, so that staff is more targeted to the maintenance of failure, to further increase the working efficiency of staff.
As a preferred embodiment, in practical application indicator light can be set to LED light, so not
It only can reduce the whole energy consumption of fan control device in use, furthermore, it is also possible to utilize the shockproof effect of LED light
Well, the advantages of long service life, extend the service life of warning device to the greatest extent, and further reach reduction fan control
The purpose of device design cost processed.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, specifically, multichannel
Switch chip is specially SP6T Switch chip.
Since SP6T Switch chip structure is simple, small in size, high reliablity, so, in the present embodiment, Ke Yili
The security performance of fan control device is further increased with SP6T Switch chip.Certainly, in practical operation, may be used also
It to set multichannel Switch chip to the chip of other models, does not limit specifically herein, as long as can reach practical
Operate purpose.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, specifically, the fan
Control device further include:
It is connected with CPLD communication, the memory of the operation information for storing BMC.
In the present embodiment, the memory for storing the operation information of BMC is provided with also in fan control device,
So, if BMC breaks down or exception, staff can be according to the operation information stored in memory to BMC
Failure cause retrieved and checked, to facilitate the maintenance work in staff's later period, further increase the work of staff
Make efficiency.
As a preferred embodiment, memory is specially cloud storage.
In practical application, memory can be set to cloud storage, BMC operation data can not only be reduced in this way
To the occupancy of memory space, moreover, also facilitating staff to check in operation conditions of the distal end to BMC, as a result, into one
The working efficiency for improving staff of step.In addition, it should be noted that, in practical application, it can also be by memory
It is set as other types of memory, such as: random access memory (Random Access Memory, RAM), read-only memory
(Read Only Memory, ROM), electrically erasable ROM, as long as practical application purpose, this reality can be reached
Example is applied to be not construed as limiting the concrete type of memory.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, specifically, multichannel
Switch chip is equipped with silk-screen label.
It is also contemplated that the number of pin on multichannel Switch chip is more, logic function corresponding to each pin
It can be all different, so, in the present embodiment, can also silk-screen label be set on multichannel Switch chip and is come to multichannel
Each pin on Switch chip is distinguished and is identified, and thus one, staff can pass through multichannel Switch
Silk-screen label on chip quickly searches out the logic pin of different function on multichannel Switch chip, greatly improves work
Make the user experience of personnel during usage.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, specifically, the fan
Control device further include:
Be connected with CPLD, when the control data for sending as BMC to CPLD are unsatisfactory for preset condition, to control data into
The data interceptor that row intercepts.
It is understood that BMC is during controlling rotation speed of the fan, it is possible to entering for malice opponent can be encountered
It invades, thus cause a hidden trouble to the security performance of entire server, so, in the present embodiment, also in fan control device
Provided with data interceptor.So, if BMC is during sending control data to CPLD, data interceptor detection
Presence is viral or other there are when the data of security risk in control data, then can pass through data interceptor pair
Control data transmitted by BMC are intercepted, and the data exchange process of BMC and CPLD are blocked with this, so that malice be avoided to oppose
Invasion of the hand to server.Obviously, through this embodiment provided in method, can further improve fan control device
Security performance.
Correspondingly, the invention also discloses a kind of server, including aforementioned disclosed fan control device.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.Professional can also be into one
Step, it is realized that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, can with electronic hardware,
The combination of computer software or the two is realized, in order to clearly illustrate the interchangeability of hardware and software, in above description
In generally describe each exemplary composition and step according to function.These functions are actually with hardware or software mode
It executes, specific application and design constraint depending on technical solution.Professional technician can specifically answer each
For using different methods to achieve the described function, but such implementation should not be considered as beyond the scope of the present invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
A kind of fan control device provided by the present invention and server are described in detail above, it is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand
Method and its core concept of the invention；At the same time, for those skilled in the art is having according to the thought of the present invention
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention
Limitation.
Claims (9)
1. a kind of fan control device characterized by comprising CPLD and multichannel Switch chip；
Wherein, BMC is connected with n first input end of the input terminal of the CPLD and the multichannel Switch chip respectively,
The output end of the CPLD is connected with the gating port of the multichannel Switch chip, the n of the multichannel Switch chip
A second input terminal is connected with VCC, and n output end of the multichannel Switch chip is connected with n fan respectively, n >=2.
2. fan control device according to claim 1, which is characterized in that further include:
It is connected with the CPLD, for prompting the BMC to be in the warning device of abnormality.
3. fan control device according to claim 2, which is characterized in that the warning device be specially buzzer and/
Or indicator light.
4. fan control device according to claim 1, which is characterized in that the model of the multichannel Switch chip has
Body is SP6T Switch chip.
5. fan control device according to claim 1, which is characterized in that further include:
It is connected with CPLD communication, the memory of the operation information for storing the BMC.
6. fan control device according to claim 5, which is characterized in that the memory is specially cloud storage.
7. fan control device according to claim 1, which is characterized in that the multichannel Switch chip is equipped with silk
Marking label.
8. fan control device according to any one of claims 1 to 7, which is characterized in that further include:
It is connected with the CPLD, when the control data for sending as the BMC to the CPLD are unsatisfactory for preset condition, to institute
State the data interceptor that control data are intercepted.
9. a kind of server, which is characterized in that including fan control device as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295926.2A CN109162953A (en) | 2018-11-01 | 2018-11-01 | A kind of fan control device and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295926.2A CN109162953A (en) | 2018-11-01 | 2018-11-01 | A kind of fan control device and server |
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| Publication Number | Publication Date |
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| CN109162953A true CN109162953A (en) | 2019-01-08 |
Family
ID=64876602
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| CN201811295926.2A Pending CN109162953A (en) | 2018-11-01 | 2018-11-01 | A kind of fan control device and server |
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| CN109681456A (en) * | 2018-12-28 | 2019-04-26 | 郑州云海信息技术有限公司 | A kind of fan control device and method |
| CN109763990A (en) * | 2019-01-15 | 2019-05-17 | 郑州云海信息技术有限公司 | A kind of control method and device of the fan of server |
| 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 |
| CN113064479A (en) * | 2021-03-03 | 2021-07-02 | 山东英信计算机技术有限公司 | Power supply redundancy control system, method and medium of GPU server |
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Application publication date: 20190108 |
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