CN110219818B - Fan speed regulation method and system compatible with different components - Google Patents
Fan speed regulation method and system compatible with different components Download PDFInfo
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- CN110219818B CN110219818B CN201910541221.2A CN201910541221A CN110219818B CN 110219818 B CN110219818 B CN 110219818B CN 201910541221 A CN201910541221 A CN 201910541221A CN 110219818 B CN110219818 B CN 110219818B
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 238000010998 test method Methods 0.000 abstract description 2
- 238000011217 control strategy Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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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
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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
- G06F1/206—Cooling means comprising thermal management
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a fan speed regulation method and system compatible with different components, wherein a plurality of component tags are added into firmware, each tag corresponds to a threshold and is bound with a component of the type, when the firmware captures the component type, the rotating speed is regulated according to a preset rotating speed regulation strategy, and when the component type is not preset, a test method is adopted to obtain the optimal rotating speed threshold, and the component type and the rotating speed are associated and stored, so that the accurate regulation and control of the rotating speed of the fan of different components are realized, and the problem of false alarm of the component or overhigh power consumption caused by the incorrect heat dissipation strategy is avoided.
Description
Technical Field
The invention relates to the technical field of server heat dissipation, in particular to a fan speed regulation method and system compatible with different components.
Background
With the rapid development of internet technology, the data volume is increased rapidly, a large amount of data needs to be processed and stored, and the server has higher and higher requirements on the heat dissipation performance of a heat dissipation fan due to larger and larger running traffic. Generally, when a server generates a stable amount of heat during operation, the rotation speed of a cooling fan of the server is relatively stable, but when the ambient temperature of the server changes or other changes cause the operating temperature of the server, the heat cannot be dissipated in time, which may cause the server to malfunction due to the accumulation of the amount of heat.
In the development and use process of the server, even if components of different models of the same manufacturer are used, the conditions of different chip thresholds are often met, and the system adjusts corresponding rotating speeds according to the thresholds of different components, so that the server is prevented from being in fault due to overheating of the components/systems. However, in the prior art, the firmware can only set a threshold value for the same type of components, so that a great number of false alarms occur or the rotating speed of the fan is increased when the threshold value is not reached, so that the problem of overhigh power consumption is caused.
Disclosure of Invention
The invention aims to provide a fan speed regulating method and system compatible with different components, and aims to solve the problem of false alarm of the components or overhigh power consumption caused by using an incorrect heat dissipation strategy in the prior art and realize accurate regulation and control of the rotating speeds of the fans of different components.
In order to achieve the technical purpose, the invention provides a fan speed regulating method compatible with different components, which comprises the following steps:
s1, setting labels for the same type of components in the firmware codes, binding the labels with the component models, corresponding to one threshold value, and setting a corresponding regulation and control strategy according to each threshold value;
s2, the model information of the firmware grabbing part during running is matched with the corresponding fan rotating speed regulation strategy;
and S3, when the captured model information cannot be matched with the corresponding label information, searching an optimal rotating speed threshold value by a speed reduction method, associating the threshold value with the model information, and storing associated information.
Preferably, the finding of the optimal rotation speed threshold value by the speed reduction method specifically includes the following operations:
setting a maximum threshold value in the similar components, and operating at the maximum fan rotating speed;
continuously monitoring the temperature of the components by using a temperature sensor, decreasing the rotating speed by using a fixed rotating speed difference until the rotating speed is decreased to the lowest rotating speed of the similar components, and recording the temperature information of all fans at the rotating speed;
and drawing a rotating speed-temperature curve, and when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, taking the temperature of the rotating speed node as the threshold value of the model part, and setting the rotating speed of the fan as the rotating speed under the rotating speed node.
Preferably, the firmware captures the model number of the part through the I2C channel of the part.
Preferably, the association information is stored to a non-volatile storage space.
The invention also provides a fan speed regulating system compatible with different components, which comprises:
the label model binding module is used for setting labels for the same type of components in the firmware codes, binding the labels with the component models, corresponding to one threshold value, and setting a corresponding regulation and control strategy according to each threshold value;
the rotating speed matching module is used for capturing the model information of the part by the firmware during running and matching the corresponding fan rotating speed regulation strategy;
and the new part association module is used for searching an optimal rotating speed threshold value by a speed reduction method when the captured model information cannot be matched with the corresponding label information, associating the threshold value with the model information and storing the associated information.
Preferably, the new component association module comprises:
the initialization rotating speed unit is used for setting by adopting the maximum threshold value in the similar components and operating at the maximum fan rotating speed;
the temperature monitoring unit is used for continuously monitoring the temperature of the components by using the temperature sensor, carrying out rotation speed decrement by using a fixed rotation speed difference until the rotation speed is decremented to the lowest rotation speed of the similar components, and recording the temperature information of all fans at the rotation speed;
and the threshold selecting unit is used for drawing a rotating speed-temperature curve, and when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, the temperature of the rotating speed node is used as the threshold of the model part, and the rotating speed of the fan is set to be the rotating speed under the rotating speed node.
Preferably, the firmware captures the model number of the part through the I2C channel of the part.
Preferably, the association information is stored to a non-volatile storage space.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
compared with the prior art, the invention adds a plurality of labels of components into the firmware, each label corresponds to a threshold value and is bound with the component of the model, when the firmware captures the model of the component, the rotation speed is adjusted according to the preset rotation speed adjusting strategy, and when the captured model is the component model which is not preset, the optimal rotation speed threshold value is obtained by adopting a testing method, and the model of the component is associated and stored with the rotation speed, thereby realizing the accurate adjustment and control of the rotation speed of the fans of different components and avoiding the problems of false alarm of the components or over high power consumption caused by incorrect heat dissipation strategy.
Drawings
FIG. 1 is a flow chart of a method for adjusting a speed of a fan compatible with different components according to an embodiment of the present invention;
fig. 2 is a block diagram of a fan speed control system compatible with different components according to an embodiment of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
The following describes a fan speed control method and system compatible with different components according to an embodiment of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention discloses a fan speed regulation method compatible with different components, including the following steps:
s1, setting labels for the same type of components in the firmware codes, binding the labels with the component models, corresponding to one threshold value, and setting a corresponding regulation and control strategy according to each threshold value;
s2, the model information of the firmware grabbing part during running is matched with the corresponding fan rotating speed regulation strategy;
and S3, when the captured model information cannot be matched with the corresponding label information, searching an optimal rotating speed threshold value by a speed reduction method, associating the threshold value with the model information, and storing associated information.
And setting a plurality of labels for the same type of component in the firmware code, wherein each label corresponds to a threshold and is bound with the component of the type, and after the system captures the component, setting a corresponding regulation and control strategy.
For example, taking a GPU as an example, a plurality of tags are set for the GPU in the firmware code, and may be set to be GPU1, GPU2, and the like, each GPU tag corresponds to one GPU model, and the two GPU tags correspond to one another, and different thresholds are set for each different GPU according to the chip specification of the GPU of each model.
For different thresholds, different rotational speeds are set. For example, if the GPU threshold for a model in tag 1 is 60 degrees, the set rotation speed is 7000RPM (RPM is RPM/min), then when the system detects that the GPU is that model, the rotation speed is set to 7000 RPM. And sequentially setting the threshold values of the known models in the parts and matching the corresponding fan rotating speeds.
The firmware captures the model number of the component from the I2C channel of the component and matches the fan speed in the regulation strategy according to the captured model number information. For example, after starting, the firmware captures a GPU model from an I2C channel of the GPU, and then corresponds to a specific regulation and control policy according to the captured model, and performs corresponding regulation and control. The speed regulation strategy is as shown in table 1:
TABLE 1
The threshold value can be directly set for the components with known models, and the rotating speed of the fan can be directly determined, while the threshold value is required to be obtained for the components with unknown models because the threshold value cannot be set in advance.
When the model of the component captured by the firmware is not preset, the maximum threshold value of the similar components can be adopted for setting, and the component runs at the maximum fan rotating speed. And continuously monitoring the temperature of the components by using a temperature sensor, and carrying out rotation speed decrement at a fixed rotation speed difference, wherein the time interval of the rotation speed decrement is set to be 2 minutes until the rotation speed is decremented to the lowest rotation speed of the similar components, and recording the temperature information of all fans at the rotation speed. And drawing a rotating speed-temperature curve, when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, taking the temperature of the rotating speed node as the threshold value of the model component, namely setting the rotating speed of the fan as the rotating speed under the rotating speed node, and storing the threshold value of the model into a nonvolatile storage space.
The embodiment of the invention adds a plurality of labels of components into the firmware, each label corresponds to a threshold and is bound with the component of the model, when the firmware captures the model of the component, the rotation speed is adjusted according to a preset rotation speed adjusting strategy, and when the captured model is the component model which is not preset, the optimal rotation speed threshold is obtained by adopting a test method, and the model of the component is associated and stored with the rotation speed, so that the accurate adjustment and control of the rotation speed of the fans of different components are realized, and the problems of false alarm of the component or overhigh power consumption caused by incorrect heat dissipation strategy are avoided.
As shown in fig. 2, an embodiment of the present invention further discloses a fan speed control system compatible with different components, where the system includes:
the label model binding module is used for setting labels for the same type of components in the firmware codes, binding the labels with the component models, corresponding to one threshold value, and setting a corresponding regulation and control strategy according to each threshold value;
the rotating speed matching module is used for capturing the model information of the part by the firmware during running and matching the corresponding fan rotating speed regulation strategy;
and the new part association module is used for searching an optimal rotating speed threshold value by a speed reduction method when the captured model information cannot be matched with the corresponding label information, associating the threshold value with the model information and storing the associated information.
The new component association module comprises:
the initialization rotating speed unit is used for setting by adopting the maximum threshold value in the similar components and operating at the maximum fan rotating speed;
the temperature monitoring unit is used for continuously monitoring the temperature of the components by using the temperature sensor, carrying out rotation speed decrement by using a fixed rotation speed difference until the rotation speed is decremented to the lowest rotation speed of the similar components, and recording the temperature information of all fans at the rotation speed;
and the threshold selecting unit is used for drawing a rotating speed-temperature curve, and when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, the temperature of the rotating speed node is used as the threshold of the model part, and the rotating speed of the fan is set to be the rotating speed under the rotating speed node.
And setting a plurality of labels for the same type of component in the firmware code, wherein each label corresponds to a threshold and is bound with the component of the type, and after the system captures the component, setting a corresponding regulation and control strategy.
For example, taking a GPU as an example, a plurality of tags are set for the GPU in the firmware code, and may be set to be GPU1, GPU2, and the like, each GPU tag corresponds to one GPU model, and the two GPU tags correspond to one another, and different thresholds are set for each different GPU according to the chip specification of the GPU of each model.
For different thresholds, different rotational speeds are set. For example, if the GPU threshold for a model in tag 1 is 60 degrees, the set rotation speed is 7000RPM (RPM is RPM/min), then when the system detects that the GPU is that model, the rotation speed is set to 7000 RPM. And sequentially setting the threshold values of the known models in the parts and matching the corresponding fan rotating speeds.
The firmware captures the model number of the component from the I2C channel of the component and matches the fan speed in the regulation strategy according to the captured model number information. For example, after starting, the firmware captures a GPU model from an I2C channel of the GPU, and then corresponds to a specific regulation and control policy according to the captured model, and performs corresponding regulation and control.
The threshold value can be directly set for the components with known models, and the rotating speed of the fan can be directly determined, while the threshold value is required to be obtained for the components with unknown models because the threshold value cannot be set in advance.
When the model of the component captured by the firmware is not preset, the maximum threshold value of the similar components can be adopted for setting, and the component runs at the maximum fan rotating speed. And continuously monitoring the temperature of the components by using a temperature sensor, and carrying out rotation speed decrement at a fixed rotation speed difference, wherein the time interval of the rotation speed decrement is set to be 2 minutes until the rotation speed is decremented to the lowest rotation speed of the similar components, and recording the temperature information of all fans at the rotation speed. And drawing a rotating speed-temperature curve, when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, taking the temperature of the rotating speed node as the threshold value of the model component, namely setting the rotating speed of the fan as the rotating speed under the rotating speed node, and storing the threshold value of the model into a nonvolatile storage space.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A method for regulating the speed of a fan compatible with different components, said method comprising the steps of:
s1, setting a plurality of labels for the same type of components in firmware codes, binding the labels with the types of the components, wherein each label corresponds to one temperature threshold, and setting a corresponding fan rotating speed regulation strategy according to each temperature threshold;
s2, the model information of the firmware grabbing part during running is matched with the corresponding fan rotating speed regulation strategy;
s3, when the captured model information cannot be matched with the corresponding label information, searching an optimal rotating speed threshold value by a speed reduction method, associating the optimal rotating speed threshold value with the model information, and storing associated information;
specifically, the step of finding the optimal rotation speed threshold value by using the speed reduction method comprises the following operations:
setting a maximum temperature threshold value in the similar components, and operating at the maximum fan rotating speed;
continuously monitoring the temperature of the components by using a temperature sensor, decreasing the rotating speed by using a fixed rotating speed difference until the rotating speed is decreased to the lowest rotating speed of the similar components, and recording the temperature information of all fans at the rotating speed;
and drawing a rotating speed-temperature curve, and when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, taking the temperature of the rotating speed node as the temperature threshold of the part model, and taking the rotating speed under the rotating speed node as the optimal rotating speed threshold.
2. A method of fan speed regulation compatible with different components as claimed in claim 1, wherein the firmware captures the model number of the component through the I2C channel of the component.
3. A method as claimed in claim 1 or 2, wherein the associated information is stored in a non-volatile memory space.
4. A fan governor system compatible with different components, the system comprising:
the label model binding module is used for setting a plurality of labels for the same type of components in the firmware codes, binding the labels with the component models, wherein each label corresponds to one temperature threshold, and setting a corresponding fan rotating speed regulation strategy according to each temperature threshold;
the rotating speed matching module is used for capturing the model information of the part by the firmware during running and matching the corresponding fan rotating speed regulation strategy;
the new component association module is used for searching an optimal rotating speed threshold value by a speed reduction method when the captured model information cannot be matched with the corresponding label information, associating the optimal rotating speed threshold value with the model information and storing association information;
the new component association module comprises:
the initialization rotating speed unit is used for setting by adopting a maximum temperature threshold value in the similar components and operating at the maximum fan rotating speed;
the temperature monitoring unit is used for continuously monitoring the temperature of the components by using the temperature sensor, carrying out rotation speed decrement by using a fixed rotation speed difference until the rotation speed is decremented to the lowest rotation speed of the similar components, and recording the temperature information of all fans at the rotation speed;
and the threshold selecting unit is used for drawing a rotating speed-temperature curve, and when the temperature difference in a rotating speed difference interval before a certain rotating speed node is 0 and the temperature difference in a rotating speed difference interval after the rotating speed node is not 0, the temperature of the rotating speed node is used as the temperature threshold of the part model, and the rotating speed under the rotating speed node is used as the optimal rotating speed threshold.
5. The system of claim 4, wherein the firmware captures the model number of the component through the component's I2C channel.
6. A system according to claim 4 or 5, wherein the association information is stored in a non-volatile memory space.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7139169B2 (en) * | 2003-12-11 | 2006-11-21 | Dell Products L.P. | System and method for information handling system cooling fan operating parameter selection |
| CN101604281A (en) * | 2008-06-11 | 2009-12-16 | 华硕电脑股份有限公司 | Computer installation and temperature control method thereof |
| CN104572399A (en) * | 2015-02-03 | 2015-04-29 | 联想(北京)有限公司 | Temperature control method and electronic equipment |
| CN104597983A (en) * | 2013-10-30 | 2015-05-06 | 中国长城计算机深圳股份有限公司 | Regulation method of revolving speed of computer and mainboard system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101429764B1 (en) * | 2007-08-29 | 2014-08-19 | 엘지전자 주식회사 | Apparatus and controling method for detecting and driving of CPU cooler |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7139169B2 (en) * | 2003-12-11 | 2006-11-21 | Dell Products L.P. | System and method for information handling system cooling fan operating parameter selection |
| CN101604281A (en) * | 2008-06-11 | 2009-12-16 | 华硕电脑股份有限公司 | Computer installation and temperature control method thereof |
| CN104597983A (en) * | 2013-10-30 | 2015-05-06 | 中国长城计算机深圳股份有限公司 | Regulation method of revolving speed of computer and mainboard system |
| CN104572399A (en) * | 2015-02-03 | 2015-04-29 | 联想(北京)有限公司 | Temperature control method and electronic equipment |
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