CN114489290B - Fan control method, system, equipment and medium - Google Patents
Fan control method, system, equipment and medium Download PDFInfo
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- CN114489290B CN114489290B CN202111604630.6A CN202111604630A CN114489290B CN 114489290 B CN114489290 B CN 114489290B CN 202111604630 A CN202111604630 A CN 202111604630A CN 114489290 B CN114489290 B CN 114489290B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000004044 response Effects 0.000 claims abstract description 31
- 238000004590 computer program Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a fan control method, which comprises the following steps: detecting the real-time current of the fan; generating first control information of the fan and sending the first control information to a fan controller in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold; the fan controller controls the fan to stop rotating for a second preset time based on the first control signal; and restarting the fan in response to the fan controller receiving second control information. The invention also discloses a system, computer equipment and a readable storage medium. The technical purposes of preventing the fan from being burnt and protecting the related circuits of the MOSFET and the FUSE when the fan is out of control can be achieved by the scheme provided by the invention, and the fan fault isolation and the fan fault self-repairing can be automatically achieved without manual maintenance.
Description
Technical Field
The present invention relates to the field of servers, and in particular, to a method, a system, an apparatus, and a storage medium for controlling a fan.
Background
In a server system, a stable and reliable fan system is the basis for stable operation of the server. Without a perfect direct current fan fault protection and automatic recovery system, the fan would face a short circuit burnout and related protection circuit burnout (switch mosfet+fuse), and also present a serious challenge for fan fault analysis.
The current protection scheme of the existing direct current fan is that a current impact protection circuit is added at the front end of the direct current fan, most of direct current fan damages are not caused by disposable overvoltage or overcurrent directly, but the rotating speed of the fan is in an out-of-control state due to unknown interference and other factors, and the state can always keep a high-speed full-speed rotating state until the fan is burnt out due to short circuit. When the fan is short-circuited, the mosfet+fuse circuit of the protection circuit is burnt out. Current surge protection circuits for this phenomenon do not solve such problems. When the monitoring of the direct current fan is not perfect enough and the direct current fan is out of control, and continuous overcurrent occurs, the protection circuit does not trigger an overcurrent protection point, does not play a protection role, burns out the circuit, and brings great challenges to the subsequent problem analysis.
Disclosure of Invention
In view of this, in order to overcome at least one aspect of the above-mentioned problems, an embodiment of the present invention provides a fan control method, including the following steps:
detecting the real-time current of the fan;
generating first control information of the fan and sending the first control information to a fan controller in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold;
the fan controller controls the fan to stop rotating for a second preset time based on the first control signal;
and restarting the fan in response to the fan controller receiving second control information.
In some embodiments, generating fan first control information and sending the fan first control information to a fan controller in response to the real-time current of the fan not exceeding an overcurrent protection threshold and meeting a preset condition within a first preset time period, further comprising:
recording the current reason that the fan stops rotating to a preset position.
In some embodiments, restarting the fan in response to the fan controller receiving second control information, further comprises:
and responding to the BMC to detect that the fan stops rotating, acquiring a reason recorded in a preset position for stopping rotating the fan, and generating a second control signal according to the reason.
In some embodiments, further comprising:
the BMC sends the second control signal to a CPLD;
the CPLD sends a restart signal to a fan controller based on the second control signal to reset the fan controller.
In some embodiments, in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold, generating fan first control information and sending the fan first control information to a fan controller, further comprising:
detecting whether the real-time current of the fan reaches an overcurrent protection threshold;
in response to reaching the over-current protection threshold, protecting the fan with an over-current protection circuit;
and generating fan first control information and sending the fan first control information to a fan controller in response to the frequency of change of the real-time current of the fan being greater than a first threshold value in a first preset time period or the magnitude of the real-time current of the fan being kept greater than the first threshold value in the first preset time period.
Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a fan control system, including:
a detection module configured to detect a real-time current of the fan;
the judging module is configured to respond to the fact that the real-time current of the fan meets preset conditions within a first preset time period and does not exceed an overcurrent protection threshold value, generate fan first control information and send the fan first control information to the fan controller;
a control module configured to cause the fan controller to control the fan to stop rotating for a second preset time based on the first control signal;
and the restarting module is configured to restart the fan in response to the fan controller receiving second control information.
In some embodiments, the determination module is further configured to:
recording the current reason that the fan stops rotating to a preset position.
In some embodiments, the restart module is further configured to:
and responding to the BMC to detect that the fan stops rotating, acquiring a reason recorded in a preset position for stopping rotating the fan, and generating a second control signal according to the reason.
Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a computer apparatus, including:
at least one processor; and
a memory storing a computer program executable on the processor, wherein the processor performs the steps of any of the fan control methods described above when the processor executes the program.
Based on the same inventive concept, according to another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program which, when executed by a processor, performs the steps of any one of the fan control methods described above.
The invention has one of the following beneficial technical effects: the scheme provided by the invention can prevent the fan, the MOSFET and the FUSE related protection circuit from being burned when the fan is out of control, and can automatically realize the fault isolation of the fan, the fault self-repairing of the fan and no manual maintenance.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a fan control method according to an embodiment of the invention;
FIG. 2 is a block flow diagram of a fan control method according to an embodiment of the present invention;
FIG. 3 is another flow chart of a fan control method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fan control system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a computer device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that, in the embodiments of the present invention, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present invention, and the following embodiments are not described one by one.
According to an aspect of the present invention, an embodiment of the present invention proposes a fan control method, as shown in fig. 1, which may include the steps of:
s1, detecting real-time current of a fan;
s2, generating first control information of the fan and sending the first control information to a fan controller in response to the fact that the real-time current of the fan meets preset conditions and does not exceed an overcurrent protection threshold in a first preset time period;
s3, the fan controller controls the fan to stop rotating for a second preset time based on the first control signal;
s4, restarting the fan in response to the fan controller receiving second control information.
The scheme provided by the invention can prevent the fan, the MOSFET and the FUSE related protection circuit from being burned when the fan is out of control, and automatically realize the fault isolation and the self-repair of the fan, thereby avoiding the manual maintenance and reducing the maintenance cost.
In some embodiments, generating fan first control information and sending the fan first control information to a fan controller in response to the real-time current of the fan not exceeding an overcurrent protection threshold and meeting a preset condition within a first preset time period, further comprising:
recording the current reason that the fan stops rotating to a preset position.
In some embodiments, restarting the fan in response to the fan controller receiving second control information, further comprises:
and responding to the BMC to detect that the fan stops rotating, acquiring a reason recorded in a preset position for stopping rotating the fan, and generating a second control signal according to the reason.
In some embodiments, further comprising:
the BMC sends the second control signal to a CPLD;
the CPLD sends a restart signal to a fan controller based on the second control signal to reset the fan controller.
In some embodiments, in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold, generating fan first control information and sending the fan first control information to a fan controller, further comprising:
detecting whether the real-time current of the fan reaches an overcurrent protection threshold;
in response to reaching the over-current protection threshold, protecting the fan with an over-current protection circuit;
and generating fan first control information and sending the fan first control information to a fan controller in response to the frequency of change of the real-time current of the fan being greater than a first threshold value in a first preset time period or the magnitude of the real-time current of the fan being kept greater than the first threshold value in the first preset time period.
Specifically, as shown in fig. 2, the fan MCU is subject to interference factors of unknown cause, resulting in a runaway fan. The out-of-control state belongs to the high-speed running of the fan or the overlarge frequency of the change of the rotating speed of the fan, and the large current generated by the fan or the overlarge frequency of the change of the current does not reach the overcurrent protection point of the overcurrent protection circuit, so that the overcurrent protection function is not triggered. At this time, the overcurrent detection module can be used to detect the persistent abnormal current and interact with the prediction module. And the judging module compares and judges the information written in advance according to the predicting module. If a fan runaway condition is met, a current sensitivity smart signal is triggered to the fan MCU. The MCU module then receives the current sensitivity smart signal, immediately stalls the fan for a period of time, e.g., 10s, and performs a protection lock.
The process can lead to the fan to be out of control because the MCU is interfered by unknown factors, the fan is in a high-speed rotating state, the generated high current does not reach the overcurrent protection point of the overcurrent protection circuit, the overcurrent detection module feeds back to the judging module, the situation is compared, if the condition of the fan out of control is met, a current sensitivity smart signal is triggered for the fan MCU, and the MCU immediately stops and protects the fan. The fan fault automatic isolation function is completed, and burning of the fan and related protection control circuits MOSfet and fuse caused by the fan fault can be prevented.
In some embodiments, as shown in fig. 3, when the BMC module automatically detects that the fan is in stall protection, it interacts with information in the judging module, if the fan is out of control, the fan is stalled. And then the BMC informs the CPLD, the CPLD gives a reset restarting signal to the fan MCU, the MCU is initialized by resetting the fan MCU, the control right of the fan is obtained again, and the fan is started automatically. After the fan is automatically started, the speed-adjustable normal state is automatically restored. The uncontrolled fan failure self-recovers.
Based on the same inventive concept, according to another aspect of the present invention, there is also provided a fan control system 400, as shown in fig. 4, including:
a detection module 401 configured to detect a real-time current of the fan;
a judging module 402, configured to generate fan first control information and send the fan first control information to a fan controller in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold;
a control module 403 configured to cause the fan controller to control the fan to stop rotating for a second preset time based on the first control signal;
a restart module 404 configured to restart the fan in response to the fan controller receiving second control information.
In some embodiments, the determination module 402 is further configured to:
recording the current reason that the fan stops rotating to a preset position.
In some embodiments, the restart module 404 is further configured to:
and responding to the BMC to detect that the fan stops rotating, acquiring a reason recorded in a preset position for stopping rotating the fan, and generating a second control signal according to the reason.
In some embodiments, the restart module 404 is further configured to:
the BMC sends the second control signal to a CPLD;
the CPLD sends a restart signal to a fan controller based on the second control signal to reset the fan controller.
In some embodiments, the determination module 402 is further configured to:
detecting whether the real-time current of the fan reaches an overcurrent protection threshold;
in response to reaching the over-current protection threshold, protecting the fan with an over-current protection circuit;
and generating fan first control information and sending the fan first control information to a fan controller in response to the frequency of change of the real-time current of the fan being greater than a first threshold value in a first preset time period or the magnitude of the real-time current of the fan being kept greater than the first threshold value in the first preset time period.
Based on the same inventive concept, according to another aspect of the present invention, as shown in fig. 5, an embodiment of the present invention further provides a computer apparatus 501, including:
at least one processor 520; and
the memory 510, the memory 510 stores a computer program 511 executable on a processor, and the processor 520 executes the steps of any of the fan control methods described above when executing the program.
According to another aspect of the present invention, as shown in fig. 6, based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium 601, the computer-readable storage medium 601 storing computer program instructions 610, the computer program instructions 610 when executed by a processor performing the steps of any of the fan control methods as above.
Finally, it should be noted that, as will be appreciated by those skilled in the art, all or part of the procedures in implementing the methods of the embodiments described above may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the procedures of the embodiments of the methods described above when executed.
Further, it should be appreciated that the computer-readable storage medium (e.g., memory) herein can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The foregoing embodiment of the present invention has been disclosed with reference to the number of embodiments for the purpose of description only, and does not represent the advantages or disadvantages of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, where the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
Those of ordinary skill in the art will appreciate that: the above discussion of any embodiment is merely exemplary and is not intended to imply that the scope of the disclosure of embodiments of the invention, including the claims, is limited to such examples; combinations of features of the above embodiments or in different embodiments are also possible within the idea of an embodiment of the invention, and many other variations of the different aspects of the embodiments of the invention as described above exist, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the embodiments should be included in the protection scope of the embodiments of the present invention.
Claims (10)
1. A method of controlling a fan, comprising the steps of:
detecting the real-time current of the fan;
generating first control information of the fan and sending the first control information to a fan controller in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold;
the fan controller controls the fan to stop rotating for a second preset time based on the first control information;
restarting the fan in response to the fan controller receiving second control information;
and generating fan first control information and sending the fan first control information to a fan controller in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an overcurrent protection threshold, and further comprising:
and generating fan first control information and sending the fan first control information to a fan controller in response to the frequency of change of the real-time current of the fan being greater than a first threshold value in a first preset time period or the magnitude of the real-time current of the fan being kept greater than the first threshold value in the first preset time period.
2. The method of claim 1, wherein generating fan first control information and transmitting to a fan controller in response to the real-time current of the fan not exceeding an over-current protection threshold and meeting a preset condition within a first preset time period, further comprises:
recording the current reason that the fan stops rotating to a preset position.
3. The method of claim 2, wherein restarting the fan in response to the fan controller receiving second control information, further comprises:
and responding to the BMC to detect that the fan stops rotating, acquiring a reason recorded in a preset position for stopping rotating the fan, and generating a second control signal according to the reason.
4. A method as recited in claim 3, further comprising:
the BMC sends the second control signal to a CPLD;
the CPLD sends a restart signal to a fan controller based on the second control signal to reset the fan controller.
5. The method of claim 1, wherein generating fan first control information and transmitting to a fan controller in response to the real-time current of the fan meeting a preset condition within a first preset time period and not exceeding an over-current protection threshold, further comprising:
detecting whether the real-time current of the fan reaches an overcurrent protection threshold;
in response to reaching the over-current protection threshold, the fan is protected with an over-current protection circuit.
6. A fan control system, comprising:
a detection module configured to detect a real-time current of the fan;
the judging module is configured to respond to the fact that the real-time current of the fan meets preset conditions within a first preset time period and does not exceed an overcurrent protection threshold value, generate fan first control information and send the fan first control information to the fan controller;
a control module configured to cause the fan controller to control the fan to stop rotating for a second preset time based on the first control information;
a restart module configured to restart the fan in response to the fan controller receiving second control information;
the judging module is further configured to:
and generating fan first control information and sending the fan first control information to a fan controller in response to the frequency of change of the real-time current of the fan being greater than a first threshold value in a first preset time period or the magnitude of the real-time current of the fan being kept greater than the first threshold value in the first preset time period.
7. The system of claim 6, wherein the determination module is further configured to:
recording the current reason that the fan stops rotating to a preset position.
8. The system of claim 7, wherein the restart module is further configured to:
and responding to the BMC to detect that the fan stops rotating, acquiring a reason recorded in a preset position for stopping rotating the fan, and generating a second control signal according to the reason.
9. A computer device, comprising:
at least one processor; and
a memory storing a computer program executable on the processor, wherein the processor performs the steps of the method of any one of claims 1-5 when the program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor performs the steps of the method according to any one of claims 1-5.
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| CN202111604630.6A CN114489290B (en) | 2021-12-24 | 2021-12-24 | Fan control method, system, equipment and medium |
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| CN202111604630.6A CN114489290B (en) | 2021-12-24 | 2021-12-24 | Fan control method, system, equipment and medium |
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| CN114489290B true CN114489290B (en) | 2023-08-08 |
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| CN117590917B (en) * | 2024-01-17 | 2024-04-23 | 苏州元脑智能科技有限公司 | Temperature control assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710694A (en) * | 2009-11-26 | 2010-05-19 | 上海大学 | Car engine cooling fan blocking/overcurrent protection system and method |
| CN105179286A (en) * | 2015-07-22 | 2015-12-23 | 小米科技有限责任公司 | Electric fan control method and device |
| CN110778517A (en) * | 2019-09-27 | 2020-02-11 | 苏州浪潮智能科技有限公司 | Fan control method, device and storage medium |
| CN113009997A (en) * | 2021-02-19 | 2021-06-22 | 山东英信计算机技术有限公司 | Control method and system of high-power direct-current power supply system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201426292A (en) * | 2012-12-26 | 2014-07-01 | Hon Hai Prec Ind Co Ltd | Server and protect methods for fan failure thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710694A (en) * | 2009-11-26 | 2010-05-19 | 上海大学 | Car engine cooling fan blocking/overcurrent protection system and method |
| CN105179286A (en) * | 2015-07-22 | 2015-12-23 | 小米科技有限责任公司 | Electric fan control method and device |
| CN110778517A (en) * | 2019-09-27 | 2020-02-11 | 苏州浪潮智能科技有限公司 | Fan control method, device and storage medium |
| CN113009997A (en) * | 2021-02-19 | 2021-06-22 | 山东英信计算机技术有限公司 | Control method and system of high-power direct-current power supply system |
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