CN103850963A - Fan control system and method - Google Patents
Fan control system and method Download PDFInfo
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- CN103850963A CN103850963A CN201210493031.6A CN201210493031A CN103850963A CN 103850963 A CN103850963 A CN 103850963A CN 201210493031 A CN201210493031 A CN 201210493031A CN 103850963 A CN103850963 A CN 103850963A
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Abstract
The invention relates to a fan control system and method. The method comprises sensing the system temperature periodically through a temperature sensor; calculating the difference between the current sensed system temperature and the system temperature of the last moment when the current sensed system temperature is larger than a threshold; improving the rotation speed of the fan by a first value when the different is larger than a first set value, and setting the temperature detection execution setting time interval of the temperature sensor to be a value smaller than an initial value; setting the time interval as the initial value when the difference is smaller than a second set value and larger than a third sett value; reducing the fan rotation speed by a second value when the difference is smaller than the third set value, and setting the time interval as the initial value. According to the system and the method, the fan rotation speed is improved according to the first set value or reduced according to the second set value when the system temperature difference sensed for successive two times is overlarge according to the sensed system temperature, and the thermal stability of the system is achieved.
Description
Technical field
The present invention relates to a kind of fan control system and control method for fan, relate in particular to a kind of fan control system and the control method for fan that can automatically control fan inside rotating speed.
Background technique
High-order electronic product now, function is become stronger day by day, and system is also done more complicated and more complicated.In order to help the electronic product radiating of high power consumption, the use of fan is the selection not being able to.The previous method for fan control, after system boot, set fan for a setting speed, if system temperature continues to raise, reach a critical temperature upper limit, rotation speed of the fan is raise (being generally maximum (top) speed), system temperature drops to lower than critical temperature lower limit because rotation speed of the fan improves by the time, rotation speed of the fan is downgraded to low setting speed.
This practice, because rotation speed of the fan only has height and low two kinds, in the time that system temperature is too high, fan can reach maximum speed at once, produces maximum noise, also needs maximum power consumpiton.Like this, the height of rotation speed of the fan and lowly must set very large difference for, otherwise radiating effect is not obvious, and still, rotation speed of the fan will constantly switch between high rotating speed and the slow-speed of revolution, and it is thermally-stabilised that system cannot reach.
Summary of the invention
The invention provides a kind of fan control system and control method for fan.
A kind of control method for fan comprises step: utilize temperature inductor according to the system temperature value of the time lag periodic, sensed electronic equipment of a setting; In the time that the current system temperature value of obtaining is not more than a threshold values, the system temperature value of repeat sensing electronic equipment; In the time that the current system temperature value of obtaining is greater than a threshold values, calculate the difference of the system temperature value of current sensing and the system temperature value of a upper moment sensing; The size of more described difference and the first setting value, the second setting value and the 3rd setting value; In the time that this difference is greater than this first setting value, the rotating speed of fan is improved to one first numerical value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as the numerical value that one to one initial value is little; In the time that this difference is less than the second setting value and is greater than the 3rd setting value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as initial value; And in the time that this difference is less than the 3rd setting value, the rotating speed of fan is reduced to a second value, and the time lag that temperature inductor is carried out the setting of temperature detecting is set as to initial value.
A kind of fan control system, this system runs in an electronic equipment, and this electronic equipment comprises the system temperature value of a temperature inductor for the time lag periodic, sensed electronic equipment according to a setting, a fan, a storage.This fan control system comprises: an acquisition module, for obtaining temperature inductor according to the system temperature value of the time lag periodic, sensed electronic equipment of a setting; One comparison module, in the time that the current system temperature value of obtaining is not more than a threshold values, the system temperature value of repeat sensing electronic equipment; One computing module, in the time that the current system temperature value of obtaining is greater than a threshold values, calculates the difference of the system temperature value of current sensing and the system temperature value of a upper moment sensing; Described comparison module, also for the size of more described difference and the first setting value, the second setting value and the 3rd setting value; One wind speed control module, in the time that this difference is greater than this first setting value, improves one first numerical value by the rotating speed of fan, and in the time that this difference is less than the 3rd setting value, the rotating speed of fan is reduced to a second value; An and setting module, for in the time that this difference is greater than this first setting value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as the numerical value that one to one initial value is little, in the time that this difference is less than the second setting value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as initial value.
Fan control system of the present invention and control method for fan are according to the system temperature value of sensing, different when excessive at the system temperature value difference of double sensing, improve the rotating speed of fan or the rotating speed of the second setting value reduction fan according to one first setting value, be conducive to system and reach thermally-stabilised.
Brief description of the drawings
Fig. 1 is the system construction drawing of next fan control system of preferred embodiments of the present invention.
Fig. 2 is the method flow diagram that the fan control system in Fig. 1 carries out fan control automatically.
Primary component symbol description
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10 |
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110 |
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120 |
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130 |
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140 |
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150 |
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1201 |
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1202 |
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1203 |
| Wind |
1204 |
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1205 |
| Rotating |
1206 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Referring to Fig. 1, is the system construction drawing of fan control system under preferred embodiments of the present invention.This fan control system 120 runs in an electronic equipment 10.This electronic equipment 10 can be the electronic products such as the high-order network switch, server host and personal computer.Described electronic equipment 10 also comprises a temperature inductor 110, a fan 130, a storage 140 and a warning device 150.
Fan 130 is according to fan control system 120 regulating and controlling rotating speeds, so that electronic equipment 10 dispels the heat.
Fig. 2 is the method flow diagram that the fan control system in Fig. 1 carries out fan control automatically.
In step S201, temperature inductor 110 is according to the system temperature value of the time lag periodic, sensed electronic equipment 10 of a setting, and acquisition module 1201 obtains the system temperature value that temperature inductor 110 senses;
In step S202, comparison module 1203 judges whether the current system temperature value of obtaining is greater than a threshold values, and if so, flow process is to step S203, if not, and flow process repeating step S202;
In step S203, computing module 1202 calculates the difference of the system temperature value of current sensing and the system temperature value of a upper moment sensing;
In step S304, comparison module 1203 judges whether this difference is greater than first setting value of storing in storage, and if so, flow process is to step S205, and if not, flow process is to step S208;
In step S205, wind speed control module 1204 is in the time that this difference is greater than this first setting value, the rotating speed of fan 130 is improved to one first numerical value, and the time lag that temperature inductor 110 is carried out the setting of temperature detecting by setting module 1205 is set as a numerical value less than initial value;
In step S206, rotating speed judge module 1206 judges whether the rotating speed of fan 130 reaches a Up limit, and if so, flow process is to step S207, and if not, flow process is to step S201;
In step S207, warning device 150 sends warning, and prompting consumer electronic device 10 inside temperatures are too high;
In step S208, comparison module 1203 judges whether this difference is greater than second setting value of storing in storage, and if so, flow process is to step S201, and if not, flow process is to step S209;
In step S209, comparison module 1203 judges whether this difference is greater than the 3rd setting value of storing in storage, and if so, flow process is to step S211, and if not, flow process is to step S210;
In step S210, wind speed control module 1204, in the time that this difference is less than the 3rd setting value, reduces a second value by the rotating speed of fan 130, and rear flow process is to step S211;
In step S211, the time lag that temperature inductor 110 is carried out the setting of temperature detecting by setting module 1205 is set as initial value.
Under the preferred embodiment for the present invention, the numerical value of the first setting value, the numerical value of the second setting value, the numerical value of the 3rd setting value reduces successively.
Under the preferred embodiment for the present invention, the first numerical value is greater than second value.
Under other mode of executions of the present invention, the quantity of temperature inductor 110 can be more than one, and the maximum temperature value that described acquisition module 1201 senses all temperature inductor 110 synchronizations is as system temperature value.
As from the foregoing, above fan control system and control method for fan can be according to the system temperature values of temperature inductor 110 sensings, at the different rotating speed that improves the rotating speed of fan 130 or second value and reduce fan 130 when excessive according to one first numerical value of the system temperature value difference of double sensing, be conducive to system and reach thermally-stabilised.
Claims (9)
1. a control method for fan, comprises step:
Utilize temperature inductor according to the system temperature value of time lag periodic, sensed one electronic equipment of a setting;
In the time that the current system temperature value of obtaining is not more than a threshold values, the system temperature value of repeat sensing electronic equipment;
In the time that the current system temperature value of obtaining is greater than a threshold values, calculate the difference of the system temperature value of current sensing and the system temperature value of a upper moment sensing;
The size of more described difference and the first setting value, the second setting value and the 3rd setting value;
In the time that this difference is greater than this first setting value, the rotating speed of fan is improved to one first numerical value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as the numerical value that one to one initial value is little;
In the time that this difference is less than the second setting value and is greater than the 3rd setting value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as initial value; And
In the time that this difference is less than the 3rd setting value, the rotating speed of fan is reduced to a second value, and the time lag that temperature inductor is carried out the setting of temperature detecting is set as to initial value.
2. control method for fan as claimed in claim 1, it is characterized in that, described method also comprises step: in the time that the current system temperature value of obtaining is greater than a threshold values, judges whether the rotating speed of fan reaches a Up limit, and in the time reaching Up limit, send warning.
3. control method for fan as claimed in claim 1, is characterized in that, the numerical value of described the first setting value, and the numerical value of the second setting value, the numerical value of the 3rd setting value reduces successively.
4. control method for fan as claimed in claim 1, is characterized in that, described the first numerical value is greater than second value.
5. a fan control system, this system runs in an electronic equipment, and this electronic equipment comprises the system temperature value of a temperature inductor for the time lag periodic, sensed electronic equipment according to a setting, a fan, a storage, is characterized in that,
This fan control system comprises:
One acquisition module, for obtaining temperature inductor according to the system temperature value of the time lag periodic, sensed electronic equipment of a setting;
One comparison module, in the time that the current system temperature value of obtaining is not more than a threshold values, the system temperature value of repeat sensing electronic equipment;
One computing module, in the time that the current system temperature value of obtaining is greater than a threshold values, calculates the difference of the system temperature value of current sensing and the system temperature value of a upper moment sensing;
Described comparison module, also for the size of more described difference and the first setting value, the second setting value and the 3rd setting value;
One wind speed control module, in the time that this difference is greater than this first setting value, improves one first numerical value by the rotating speed of fan, and in the time that this difference is less than the 3rd setting value, the rotating speed of fan is reduced to a second value; And
One setting module, for in the time that this difference is greater than this first setting value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as the numerical value that one to one initial value is little, in the time that this difference is less than the second setting value, the time lag of temperature inductor being carried out to the setting of temperature detecting is set as initial value.
6. fan control system as claimed in claim 5, it is characterized in that, described fan control system also comprises a rotating speed judge module, for in the time that the current system temperature value of obtaining is greater than a threshold values, whether the rotating speed that judges fan reaches a Up limit, described electronic equipment also comprises a warning device, for send warning in the time that the rotating speed of fan reaches Up limit.
7. fan control system as claimed in claim 5, is characterized in that, the numerical value of described the first setting value, and the numerical value of the second setting value, the numerical value of the 3rd setting value reduces successively.
8. fan control system as claimed in claim 5, is characterized in that, described the first numerical value is greater than second value.
9. fan control system as claimed in claim 5, is characterized in that, more than one of the quantity of described temperature inductor, and the maximum temperature value that described acquisition module senses all temperature inductor synchronizations is as system temperature value.
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| CN201210493031.6A CN103850963B (en) | 2012-11-28 | 2012-11-28 | Fan control system and control method for fan |
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| CN201210493031.6A CN103850963B (en) | 2012-11-28 | 2012-11-28 | Fan control system and control method for fan |
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| CN103850963A true CN103850963A (en) | 2014-06-11 |
| CN103850963B CN103850963B (en) | 2016-06-29 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154023A (en) * | 2014-08-18 | 2014-11-19 | 深圳市杰和科技发展有限公司 | Intelligent control system and method for multiple fans of display card |
| CN105429906A (en) * | 2016-01-12 | 2016-03-23 | 浪潮集团有限公司 | Method for realizing heat radiation and noise reduction of switch by use of temperature-sensing monitoring |
| CN106292954A (en) * | 2016-08-08 | 2017-01-04 | 青岛海信宽带多媒体技术有限公司 | Fan rotational frequency control method and device |
| CN109782823A (en) * | 2017-11-13 | 2019-05-21 | 株洲中车时代电气股份有限公司 | Temperature control system and method for Transit Equipment testboard |
| CN109921149A (en) * | 2019-04-15 | 2019-06-21 | 广州通达汽车电气股份有限公司 | Battery thermal management control method, device, computer equipment and storage medium |
| CN110345097A (en) * | 2019-06-14 | 2019-10-18 | 南京晶达微电子科技有限公司 | A kind of control method for fan, device, equipment and computer storage medium |
| CN111255726A (en) * | 2020-03-03 | 2020-06-09 | 上海度普新能源科技有限公司 | Fan control method and device |
| WO2021031971A1 (en) * | 2019-08-22 | 2021-02-25 | 三维通信股份有限公司 | Method and device for controlling flow rate of fan, computer apparatus, and readable storage medium |
| CN113464480A (en) * | 2021-08-13 | 2021-10-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Fan control method and system |
| CN116086632A (en) * | 2023-01-28 | 2023-05-09 | 天翼云科技有限公司 | Data processing method, device, electronic equipment and medium |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154023A (en) * | 2014-08-18 | 2014-11-19 | 深圳市杰和科技发展有限公司 | Intelligent control system and method for multiple fans of display card |
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| CN106292954A (en) * | 2016-08-08 | 2017-01-04 | 青岛海信宽带多媒体技术有限公司 | Fan rotational frequency control method and device |
| CN109782823A (en) * | 2017-11-13 | 2019-05-21 | 株洲中车时代电气股份有限公司 | Temperature control system and method for Transit Equipment testboard |
| CN109921149A (en) * | 2019-04-15 | 2019-06-21 | 广州通达汽车电气股份有限公司 | Battery thermal management control method, device, computer equipment and storage medium |
| CN110345097A (en) * | 2019-06-14 | 2019-10-18 | 南京晶达微电子科技有限公司 | A kind of control method for fan, device, equipment and computer storage medium |
| WO2021031971A1 (en) * | 2019-08-22 | 2021-02-25 | 三维通信股份有限公司 | Method and device for controlling flow rate of fan, computer apparatus, and readable storage medium |
| CN111255726A (en) * | 2020-03-03 | 2020-06-09 | 上海度普新能源科技有限公司 | Fan control method and device |
| CN111255726B (en) * | 2020-03-03 | 2022-03-25 | 上海度普新能源科技有限公司 | Fan control method and device |
| CN113464480A (en) * | 2021-08-13 | 2021-10-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Fan control method and system |
| CN116086632A (en) * | 2023-01-28 | 2023-05-09 | 天翼云科技有限公司 | Data processing method, device, electronic equipment and medium |
| CN116086632B (en) * | 2023-01-28 | 2023-08-04 | 天翼云科技有限公司 | Data processing method, device, electronic equipment and medium |
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| CN103850963B (en) | 2016-06-29 |
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Effective date of registration: 20180226 Address after: The Guangxi Zhuang Autonomous Region Nanning hi tech Zone headquarters Road No. 18, China ASEAN enterprise headquarters base three 5# workshop Patentee after: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. |