CN110043499B - Intelligent fan speed regulating device - Google Patents
Intelligent fan speed regulating device Download PDFInfo
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- CN110043499B CN110043499B CN201910289356.4A CN201910289356A CN110043499B CN 110043499 B CN110043499 B CN 110043499B CN 201910289356 A CN201910289356 A CN 201910289356A CN 110043499 B CN110043499 B CN 110043499B
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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
Abstract
The invention discloses an intelligent fan speed regulating device.A substrate management controller carries out differential speed regulation on a plurality of temperature sensors corresponding to a plurality of fan zones, and each temperature sensor is associated with any one of the fan zones by adopting a speed regulating algorithm. The intelligent fan speed regulating device greatly improves the energy efficiency index performance of a machine, saves power resources and is more environment-friendly; the design of the air duct can be optimized according to the actual requirement of the machine; in addition, the noise of the machine is less and the user experience is better.
Description
Technical Field
The invention relates to the technical field of computer fan heat dissipation, in particular to an intelligent fan speed regulating device.
Background
The existing server heat dissipation speed regulation is mainly to control fans through aggregation temperature of a plurality of temperature sensors, and differentiation speed regulation algorithm cannot be carried out by simultaneously corresponding a plurality of fan zones to the plurality of temperature sensors.
In the actual heat dissipation speed regulation optimization, part of the key sensors influence all fan zones, and heat dissipation speed regulation algorithms or speed regulation parameters used at different fan zones (such as the temperature of an air inlet of a server) are different.
In the prior art, temperature sensors and wind sectors are generally in a many-to-one binding mode, that is, a plurality of temperature sensors correspond to one fan zone, and an independent zone adjusting mode that a plurality of temperature sensors correspond to a plurality of fan zones is not realized. The many-to-one binding mode is simple in speed regulation, and heat dissipation engineers can easily obtain heat dissipation parameters, because the rotating speeds of a plurality of fans in each fan area are consistent, mutual interference among the fans is basically not considered. However, in most cases, only some parts of the equipment generally need to be cooled at a high rotating speed, and all fans in one fan area can be moved in a many-to-one binding mode, so that the serious waste of power resources is caused, and meanwhile, the noise is very high.
In contrast, in the many-to-many speed regulation mode, the division of different FAN zones and the problem of mutual influence of wind pressure caused by the difference of the FAN rotating speeds between different FAN zones need to be considered, and the test adjustment is complex and time-consuming. Under the conditions of time tightness and heavy tasks, a many-to-one binding speed regulation mode is generally selected from the adjustable angle of a heat dissipation engineer.
In view of the above problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
In view of the above problems in the related art, the present invention provides an intelligent fan speed adjusting device, which can save power resources and reduce noise of a machine.
The technical scheme of the invention is realized as follows:
according to one aspect of the invention, a baseboard management controller performs differential speed regulation on a plurality of temperature sensors corresponding to a plurality of fan zones, and each temperature sensor is associated with any one of the fan zones by adopting a speed regulation algorithm.
According to one embodiment of the invention, one of the temperature sensors is associated with any one of the plurality of fan zones using one of a linear governing algorithm, an open loop governing algorithm, a closed loop PID governing algorithm.
According to one embodiment of the invention, the plurality of temperature sensors includes a first temperature sensor, a second temperature sensor, a third temperature sensor, and a fourth temperature sensor, and the plurality of fan sections includes a first fan section, a second fan section, and a third fan section.
According to an embodiment of the present invention, under the linear speed adjustment algorithm, the first temperature sensor calculates a first PWM duty cycle acting on the first fan zone using a zone1PWM1 ═ a1 × 1+ b1 pattern, where zone1PWM1 represents the first PWM duty cycle of the first fan zone, a1 and b1 are constants, and x1 represents the temperature detected by the first temperature sensor;
the second temperature sensor calculates a second PWM duty cycle acting on the first fan zone using a zone1PWM2 ═ a2 × 2+ b2 model, where zone1PWM2 represents the second PWM duty cycle of the first fan zone, a2 and b2 are constants, and x2 represents the temperature detected by the second temperature sensor;
the third temperature sensor calculates a third PWM duty cycle acting on the first fan zone using a zone1PWM3 ═ a3 × 3+ b3 model, where zone1PWM3 represents the third PWM duty cycle of the first fan zone, a3 and b3 are constants, and x3 represents the temperature detected by the third temperature sensor;
the fourth temperature sensor calculates a fourth PWM duty cycle acting on the first fan zone by using a zone1PWM4 ═ a4 × 4+ b4 model, wherein zone1PWM4 represents the fourth PWM duty cycle of the first fan zone, a4 and b4 are constants, and x4 represents the temperature detected by the fourth temperature sensor;
and the first fan area adjusts the rotating speed of the fan in the first fan area according to the maximum value of a first PWM duty ratio of the first fan area, a second PWM duty ratio of the first fan area, a third PWM duty ratio of the first fan area and a fourth PWM duty ratio of the first fan area.
In the intelligent fan speed adjusting device provided by the embodiment of the invention, any temperature sensor can be associated with one or more fan zones by adopting different or same algorithms, and the temperature sensors are not influenced with each other. When adopting above intelligent fan speed adjusting device, there is the following benefit: firstly, the energy efficiency index energy of the machine is greatly improved, the power resource is saved, and the machine is more environment-friendly; secondly, the design of an air duct can be optimized according to the actual requirement of the machine; third, the noise of the machine is less and the user experience is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a temperature sensor 10 and a wind sector 20 according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to the embodiment of the invention, a baseboard management controller performs differential speed regulation on a plurality of temperature sensors 10 corresponding to a plurality of fan zones 20, and each temperature sensor 10 is associated with any one of the plurality of fan zones 20 by adopting a speed regulation algorithm.
In the intelligent fan speed adjusting device provided by the embodiment of the invention, any one temperature sensor 10 can be associated with one or more fan zones 20 by adopting different or same algorithms, and does not influence each other. When adopting above intelligent fan speed adjusting device, there is the following benefit: firstly, the energy efficiency index energy of the machine is greatly improved, the power resource is saved, and the machine is more environment-friendly; secondly, the design of an air duct can be optimized according to the actual requirement of the machine; third, the noise of the machine is less and the user experience is better.
In various embodiments, one temperature sensor 10 is associated with any one of the plurality of fan sections 20 using one of a linear governing algorithm, an open loop governing algorithm, a closed loop PID governing algorithm. The function of independent partition speed regulation is finally achieved by integrating different algorithms and different speed regulation strategies, and the purpose of energy conservation is achieved.
In one embodiment, plurality of temperature sensors 10 includes a first temperature sensor, a second temperature sensor, a third temperature sensor, and a fourth temperature sensor, and plurality of fan sections 20 includes a first fan section, a second fan section, and a third fan section.
Fig. 1 is a schematic view of a temperature sensor 10 and a wind sector 20 according to an embodiment of the present invention. Specifically, a BMC (Baseboard management Controller) is used as an implementation entity of the intelligent fan speed control algorithm corresponding to the plurality of fan areas 20 as a plurality of temperature sensor 10 nodes. Each temperature sensor 10 may belong to a plurality of fan zones 20, with a many-to-many relationship between the temperature sensors 10 and the fan zones 20. As shown in fig. 1, the left side is 4 temperature sensors 10, the right side is 3 fan zones 20, and each fan zone 20 is composed of 2 fans. Any one of the temperature sensors 10 on the left side can be simultaneously associated with any one of the fan sections 20 on the right side and can employ different algorithms or parameters.
Under a linear speed regulation method, a first temperature sensor calculates a first Pulse Width Modulation (PWM) duty ratio acting on a first fan zone by using a zone1PWM1 ═ a1 x1+ b1 mode, wherein zone1PWM1 represents the first PWM duty ratio of the first fan zone, a1 and b1 are constants, and x1 represents the temperature detected by the first temperature sensor;
the second temperature sensor calculates a second PWM duty cycle acting on the first fan zone using a zone1PWM2 ═ a2 × 2+ b2 model, where zone1PWM2 represents the second PWM duty cycle of the first fan zone, a2 and b2 are constants, and x2 represents the temperature detected by the second temperature sensor;
the third temperature sensor calculates a third PWM duty cycle acting on the first fan zone using a zone1PWM3 ═ a3 × 3+ b3 model, where zone1PWM3 represents the third PWM duty cycle of the first fan zone, a3 and b3 are constants, and x3 represents the temperature detected by the third temperature sensor;
the fourth temperature sensor calculates a fourth PWM duty cycle acting on the first fan zone with a zone1PWM4 ═ a4 × 4+ b4 mode, where zone1PWM4 represents the fourth PWM duty cycle of the first fan zone, a4 and b4 are constants, and x4 represents the temperature detected by the fourth temperature sensor;
and the first fan area adjusts the rotating speed of the fan in the first fan area according to the maximum value of the first PWM duty ratio of the first fan area, the second PWM duty ratio of the first fan area, the third PWM duty ratio of the first fan area and the fourth PWM duty ratio of the first fan area.
In summary, with the above technical solution of the present invention, the present invention can satisfy the differential speed regulation algorithm of a plurality of temperature sensors 10 corresponding to a plurality of fan zones 20. The intelligent speed regulation algorithm is suitable for heat dissipation speed regulation of a rack server and a whole cabinet server or other system speed regulation of a plurality of temperature sensor 10 nodes and a plurality of fan areas 20. Moreover, when the intelligent fan speed regulating device is adopted, the energy efficiency index of the machine is greatly improved, the power resource is saved, and the intelligent fan speed regulating device is more environment-friendly; the design of the air duct can be optimized according to the actual requirement of the machine; the noise of the machine is less, and the user experience is better.
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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The intelligent fan speed regulation device is characterized in that a baseboard management controller enables each temperature sensor in a plurality of temperature sensors to correspond to each fan zone in a plurality of fan zones respectively for differential speed regulation, and each temperature sensor is associated with any one of the fan zones by adopting a speed regulation algorithm;
the fan control system comprises a plurality of fan areas, wherein the fan areas comprise a first fan area, each temperature sensor in the temperature sensors calculates PWM duty ratio acting on the first fan area by using a linear speed regulation algorithm, and the first fan area regulates the rotating speed of a fan in the first fan area according to the maximum value of each PWM duty ratio acting on the first fan area, which is provided by each temperature sensor.
2. The intelligent fan governor apparatus of claim 1, wherein one of the temperature sensors is associated with any of the plurality of fan sections using one of a linear governor algorithm, an open loop governor algorithm, and a closed loop PID governor algorithm.
3. The intelligent fan governor of claim 2, wherein the plurality of temperature sensors includes a first temperature sensor, a second temperature sensor, a third temperature sensor, and a fourth temperature sensor, and the plurality of fan sections further includes a second fan section and a third fan section.
4. A smart fan governor arrangement according to claim 3, characterised in that under the linear governor algorithm the first temperature sensor calculates a first PWM duty cycle acting on the first fan section using a zone1PWM 1-a 1 x1+ b1 pattern, where zone1PWM1 represents the first PWM duty cycle of the first fan section, a1 and b1 are constants, and x1 represents the temperature detected by the first temperature sensor;
the second temperature sensor calculates a second PWM duty cycle acting on the first fan zone using a zone1PWM2 ═ a2 × 2+ b2 model, where zone1PWM2 represents the second PWM duty cycle of the first fan zone, a2 and b2 are constants, and x2 represents the temperature detected by the second temperature sensor;
the third temperature sensor calculates a third PWM duty cycle acting on the first fan zone using a zone1PWM3 ═ a3 × 3+ b3 model, where zone1PWM3 represents the third PWM duty cycle of the first fan zone, a3 and b3 are constants, and x3 represents the temperature detected by the third temperature sensor;
the fourth temperature sensor calculates a fourth PWM duty cycle acting on the first fan zone by using a zone1PWM4 ═ a4 × 4+ b4 model, wherein zone1PWM4 represents the fourth PWM duty cycle of the first fan zone, a4 and b4 are constants, and x4 represents the temperature detected by the fourth temperature sensor;
and the first fan area adjusts the rotating speed of the fan in the first fan area according to the maximum value of a first PWM duty ratio of the first fan area, a second PWM duty ratio of the first fan area, a third PWM duty ratio of the first fan area and a fourth PWM duty ratio of the first fan area.
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| CN110989725A (en) * | 2019-12-07 | 2020-04-10 | 苏州晶旭新能源科技有限公司 | Thermal management control method of cross-axle type photovoltaic power generation combiner box |
| CN112732053A (en) * | 2021-01-20 | 2021-04-30 | 山东云海国创云计算装备产业创新中心有限公司 | Server heat dissipation method, device, equipment and medium |
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| CN102434479A (en) * | 2011-11-15 | 2012-05-02 | 浪潮电子信息产业股份有限公司 | Constant temperature energy-saving control method in rack type server case |
| CN104675738B (en) * | 2015-02-06 | 2016-05-25 | 烽火通信科技股份有限公司 | Fan intelligent speed-governing system and method based on rack unified management |
| CN105587681B (en) * | 2015-12-10 | 2020-03-06 | 浪潮电子信息产业股份有限公司 | Fan regulation and control method applied to SmartRack cabinet based on PID algorithm |
| CN108150442B (en) * | 2016-12-06 | 2020-01-31 | 佛山市顺德区顺达电脑厂有限公司 | Cabinet fan control method and module |
| CN109026807A (en) * | 2018-08-13 | 2018-12-18 | 浪潮电子信息产业股份有限公司 | A kind of control method and device of rotation speed of the fan |
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Effective date of registration: 20211011 Address after: 100089 building 36, courtyard 8, Dongbeiwang West Road, Haidian District, Beijing Patentee after: Dawning Information Industry (Beijing) Co.,Ltd. Patentee after: ZHONGKE SUGON INFORMATION INDUSTRY CHENGDU Co.,Ltd. Address before: 100193 No. 36 Building, No. 8 Hospital, Wangxi Road, Haidian District, Beijing Patentee before: Dawning Information Industry (Beijing) Co.,Ltd. |