CN102312850A - Heat-radiation control system and method of fan - Google Patents
Heat-radiation control system and method of fan Download PDFInfo
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- CN102312850A CN102312850A CN2010102120372A CN201010212037A CN102312850A CN 102312850 A CN102312850 A CN 102312850A CN 2010102120372 A CN2010102120372 A CN 2010102120372A CN 201010212037 A CN201010212037 A CN 201010212037A CN 102312850 A CN102312850 A CN 102312850A
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Abstract
The invention relates to a heat-radiation control system and method of a fan. The method comprises the following steps of: setting a maximum temperature value when a CPU (Central Processing Unit), as well as an initial heat-radiation position, an optimal heat-radiation position, an initial rotating speed and the heat-radiation time of the fan; detecting a first working temperature value of the CPU through a temperature sensor; when the first temperature value is not smaller than the maximum temperature value, controlling the fan to rotate from the initial heat-radiation position to the set optimal heat-radiation position, and carrying out heat radiation on the CPU according to the set initial rotating speed; when the heat-radiation time of the CPU which is subjected to heat radiation by the fan according to the set initial rotating speed reaches the set heat-radiation time, sensing a second working temperature value through the temperature sensor; and when the second working temperature value of the CPU is smaller than the maximum temperature value, controlling the fan to rotate to the set initial heat-radiation position. By implementing the invention, the fan can be controlled to rotate to the optimal heat-radiation position to carry out heat radiation on the CPU, and therefore the purpose of balancing the system heat-radiation effect and the fan noise is achieved.
Description
Technical field
The present invention relates to a kind of electronic equipment radiation system and method, particularly about a kind of fan cooling control system and method.
Background technique
Change in general computer (for example PC/Server) system Nei Changchangyin ambient temperature improves radiating effect and need remove to adjust rotation speed of the fan (Duty cycle).But, when duty cycle＞80%, the amplitude that cpu temperature improves and the non-linear relation of rotating speed of fan, its do not have rotating speed be 20% to 80% o'clock obvious, and increased fan noise.This shows that under the situation of the fixed-site of fan, even rotation speed of the fan is drawn high, its radiating effect is not promoted effectively, has produced excessive noise on the contrary.
Summary of the invention
In view of above content, be necessary to provide a kind of fan cooling control system, can control fan and turn to best heat radiation position CPU is dispelled the heat, thereby reach the purpose of balance sysmte radiating effect and fan noise.
In addition, also be necessary to provide a kind of cpu fan method for controlling number of revolution, can control fan and turn to best heat radiation position CPU is dispelled the heat, thereby reach the purpose of balance sysmte radiating effect and fan noise.
A kind of fan cooling control system; Install and run in the electronic equipment; This electronic equipment comprises fan, CPU and temperature transducer; Described fan cooling control system comprises: parameter is provided with module, is used to be provided with the maximum temperature values of CPU proper functioning and the initial heat radiation position of fan, best heat radiation position, initial speed and heat radiation time; The temperature detecting module is used for the first operating temperature value through temperature transducer detecting CPU, and judges that whether the first operating temperature value is less than maximum temperature values; Rotate control module, be used for when first operating temperature is not less than maximum temperature values, control fan, and CPU is dispelled the heat according to set initial speed from the extremely set the best heat radiation position of initial heat radiation rotated position; Said temperature detecting module also is used for according to set initial speed time of CPU heat radiation being reached set heat radiation during the time when fan, and the worker second through temperature transducer detecting CPU makes temperature value; And the radiating control module, being used for when second of CPU does the temperature value operating temperature less than maximum temperature values, the control fan turns to set initial heat radiation position.
A kind of fan cooling control method, this method comprise the steps: that (a) is provided with the maximum temperature values of CPU proper functioning and initial heat radiation position, the best heat radiation position, initial speed and heat radiation time of fan; (b) detect the first operating temperature value of CPU through temperature transducer, and judge that whether the first operating temperature value is less than maximum temperature values; (c) when first operating temperature is not less than maximum temperature values, controls fan from the extremely set the best heat radiation position of initial heat radiation rotated position, and CPU is dispelled the heat according to set initial speed; (d) according to set initial speed time of CPU heat radiation is reached set heat radiation during the time when fan, the worker second through temperature transducer detecting CPU makes temperature value; And (e) when second of CPU does the temperature value operating temperature less than maximum temperature values, the control fan turns to set initial heat radiation position.
Compared to existing technology; Fan cooling control system of the present invention and method; Can control fan and carry and turn to best heat radiation position CPU is dispelled the heat, thereby balance sysmte radiating effect and fan noise reach the system of optimizing radiating effect and fan noise is reduced to minimum.
Description of drawings
Fig. 1 is the configuration diagram of fan cooling control system of the present invention preferred embodiment.
Fig. 2 is the functional block diagram of Fig. 1 fan cooling control system.
Fig. 3 is the flow chart of fan cooling control method of the present invention preferred embodiment.
The primary component symbol description
| |
1 |
| The fan |
10 |
| Fan | 11 |
| |
12 |
| |
13 |
| |
14 |
| Parameter is provided with module | ?100 |
| The temperature detecting module | ?101 |
| Rotate control module | ?102 |
| The radiating control module | ?103 |
Embodiment
As shown in Figure 1, be the configuration diagram of fan cooling control system 10 preferred embodiments of the present invention.In the present embodiment, this fan cooling control system 10 runs in the electronic equipment 1.Described electronic equipment 1 can be electronic desk top calculator (PC), notebook computer (Notebook), server (Server) and other computing electronics.This electronic equipment 1 comprises a plurality of fans 11 (only illustrating 3 among the figure), CPU (Central Processing Unit, central processing unit (CPU)) 12, temperature transducer (Thermal Sensor) 13 and control unit 14.Said fan A is installed in the electronic equipment 1, and is not rotatable, is mainly used in CPU 12 is dispelled the heat; Said fan C is installed in the electronic equipment 1, and is not rotatable, is mainly used in control unit 14 is dispelled the heat; Said fan B is installed in the electronic equipment 1, can under the control of fan cooling control system 10, rotate, to strengthen the heat radiation function to CPU 12.Said temperature transducer 13 is connected with fan cooling control system 10 and CPU 12 respectively, is used for the operating temperature of sensing system ambient temperature and CPU 12.
As shown in Figure 2, be the functional block diagram of Fig. 1 fan cooling control system 10.This fan cooling control system 10 comprises that parameter is provided with module 100, temperature detecting module 101, rotates control module 102 and radiating control module 103.The alleged module of the present invention is to accomplish the computer program code segments of a specific function, be more suitable in describing the implementation of software in computer than program, therefore below the present invention to all describing in the software description with module.
Said parameter is provided with the maximum temperature values T that module 100 is used to be provided with CPU 12 proper functioning
mWith the initial heat radiation position of fan B, best heat radiation position, initial speed, maximum (top) speed N
m, heat radiation time, rotating speed raising value.In the present embodiment, the maximum temperature values T of said CPU 12 proper functioning
mLess than the maximum temperature specification of CPU 12, for example: if the maximum temperature specification of CPU 12 is 72 degrees centigrade, then parameter module 100 is set can be with T
mBe set to 70 degrees centigrade.The best heat radiation position of said fan B is meant that fan B rotates the position of dispelling the heat to CPU 12 in the back, and is as shown in Figure 1, and the position of Fig. 1 fan B is best heat radiation position.Said initial speed can be set to fan B maximum (top) speed N
m30%.The said heat radiation time can be set to 1 minute.The rotating speed raising value of said fan B can be set to 5% of the current rotating speed of fan B.
Said temperature detecting module 101 is used for the first operating temperature value T through temperature transducer 13 detecting CPU 12
N1, and judge T
N1Whether less than T
m
Said rotation control module 102 is used for first work temperature as CPU 12
N1Be not less than T
mThe time, control fan B from the extremely set the best heat radiation position of initial heat radiation rotated position, and CPU 12 is dispelled the heat according to set initial speed.
Said temperature detecting module 101 is used for according to set initial speed time of CPU 12 heat radiation being reached set heat radiation during the time, through the second operating temperature value T of temperature transducer 13 detecting CPU 12 as fan B
N2, and judge T
N2Whether less than T
m
Said radiating control module 103 is used for the second operating temperature value T as CPU 12
N2Be not less than T
mThe time, the current rotating speed of fan B is increased a rotating speed raising value, and judge that whether rotating speed after the fan B raising is less than maximum (top) speed N
m
Said temperature detecting module 101 is used for rotating speed after fan B improves less than maximum (top) speed N
mThe time, control fan B dispels the heat to CPU 12 according to the rotating speed after improving, when fan B reaches set heat radiation during the time, through the 3rd operating temperature value T of temperature transducer 13 detecting CPU 12 to time of CPU12 heat radiation
N3, and judge T
N3Whether less than T
m
The rotating speed that said radiating control module 103 is used for after fan B improves is not less than maximum (top) speed N
mThe time, control fan B is with maximum (top) speed N
mCPU 12 is dispelled the heat, so that the operating temperature of CPU 12 is less than T
m
The operating temperature that said radiating control module 103 also is used for working as CPU 12 is less than T
mThe time, to initial speed, and control fan B turns to said initial heat radiation position with the current speed drop of fan B.
As shown in Figure 3, be the flow chart of fan cooling control method of the present invention preferred embodiment.Step S10, parameter is provided with the maximum temperature values T that module 100 is provided with CPU 12 proper functioning
mWith the initial heat radiation position of fan B, best heat radiation position, initial speed, maximum (top) speed N
m, heat radiation time, rotating speed raising value.
Step S11, temperature detecting module 101 is through the first operating temperature value T of temperature transducer 13 detecting CPU 12
N1In the present embodiment, the said first operating temperature value T
N1Be a value that constantly changes, can carry out record through a variable.
Step S12, temperature detecting module 101 is judged T
N1Whether less than T
m
Work as T
N1Be not less than T
mThe time, step S13 rotates control module 102 control fan B from the extremely set the best heat radiation position of initial heat radiation rotated position, and according to set initial speed CPU12 is dispelled the heat.Perhaps, work as T
N1Less than T
mThe time, be back to the operating temperature that step S11 continues detecting CPU 12.
Step S14, when fan B reaches set heat radiation during the time according to set initial speed to time of CPU 12 heat radiation, temperature detecting module 101 is through the second operating temperature value T of temperature transducer 13 detecting CPU 12
N2
Step S15, temperature detecting module 101 is judged T
N2Whether less than T
m
Work as T
N2Be not less than T
mThe time, step S16, radiating control module 103 increases a rotating speed raising value with the current rotating speed of fan B.Perhaps, work as T
N2Less than T
mThe time, directly to step S20, radiating control module 103 control fan B turn to set initial heat radiation position.
Step S17, radiating control module 103 judges that whether rotating speed after fan B improves is less than maximum (top) speed N
m
Rotating speed after fan B improves is less than maximum (top) speed N
mThe time; Step S18; Temperature detecting module 101 control fan B dispel the heat to CPU 12 according to the rotating speed after improving, and the time that the rotating speed after fan B is according to said raising dispels the heat to CPU 12 reaches set heat radiation during the time, the 3rd operating temperature value T of detecting CPU 12
N3In the present embodiment, said the 3rd operating temperature value T
N3Be a value that constantly changes, can carry out record through a variable.
Perhaps, the rotating speed after fan B improves is not less than maximum (top) speed N
mThe time, step S21, radiating control module 103 control fan B are with maximum (top) speed N
mCPU 12 is dispelled the heat, so that the operating temperature of CPU12 is less than T
m
Step S19, temperature detecting module 101 is judged T
N3Whether less than T
m
Work as T
N3Be not less than T
mThe time, be back to step S16.Perhaps, work as T
N3Less than T
mThe time, to initial speed, and control fan B turns to said initial heat radiation position to radiating control module 103 with the current speed drop of fan B.
What should explain at last is; Above embodiment is only unrestricted in order to technological scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technological scheme of the present invention, and do not break away from the spirit and the scope of technological scheme of the present invention.
Claims (8)
1. a fan cooling control system is installed and is run in the electronic equipment, and this electronic equipment comprises fan, CPU and temperature transducer, it is characterized in that, described fan cooling control system comprises:
Parameter is provided with module, is used to be provided with the maximum temperature values of CPU proper functioning and the initial heat radiation position of fan, best heat radiation position, initial speed and heat radiation time;
The temperature detecting module is used for the first operating temperature value through temperature transducer detecting CPU, and judges that whether the first operating temperature value is less than maximum temperature values;
Rotate control module, be used for when first operating temperature during more than or equal to maximum temperature values, the control fan turns to set the best position of dispelling the heat from initial heat radiation position, and based on set initial speed CPU is dispelled the heat;
Said temperature detecting module also is used for based on set initial speed time of CPU heat radiation being reached set heat radiation during the time when fan, and the worker second through temperature sensor detecting CPU makes temperature value; And
The radiating control module is used for when second of CPU does the temperature value operating temperature less than maximum temperature values, and the control fan turns to set initial heat radiation position.
2. fan cooling control system as claimed in claim 1 is characterized in that, said parameter is provided with maximum (top) speed and the rotating speed raising value that module also is used to be provided with fan.
3. fan cooling control system as claimed in claim 2; It is characterized in that; When said radiating control module also is used for the second operating temperature value as CPU more than or equal to maximum temperature values; The current rotating speed of fan is increased a rotating speed raising value, and judge that whether rotating speed after the fan raising is less than maximum (top) speed;
When said temperature detecting module also is used for rotating speed after fan improves less than maximum (top) speed; The control fan dispels the heat to CPU according to the rotating speed after improving; When fan reaches set heat radiation during the time, through the 3rd operating temperature value of temperature transducer detecting CPU to time of CPU heat radiation;
When said radiating control module also was used for the 3rd operating temperature value as CPU less than maximum temperature, to initial speed, and the control fan turned to said initial heat radiation position with the current speed drop of fan.
4. fan cooling control system as claimed in claim 3; It is characterized in that; When said radiating control module also was used for rotating speed after fan improves more than or equal to maximum (top) speed, the control fan dispelled the heat to CPU with said maximum (top) speed, so that the operating temperature of CPU is less than maximum temperature values.
5. a fan cooling control method is characterized in that, this method comprises the steps:
(a) maximum temperature values of CPU proper functioning and the initial heat radiation position of fan, best heat radiation position, initial speed and heat radiation time are set;
(b) detect the first operating temperature value of CPU through temperature transducer, and judge that whether the first operating temperature value is less than maximum temperature values;
(c) when first operating temperature during more than or equal to maximum temperature values, the control fan, and dispels the heat to CPU according to set initial speed to set the best heat radiation position from initial heat radiation rotated position;
(d) based on set initial speed time of CPU heat radiation is reached set heat radiation during the time when fan, make temperature value through second of temperature sensor detecting CPU; And
(e) when second of CPU does the temperature value operating temperature less than maximum temperature values, the control fan turns to set initial heat radiation position.
6. fan cooling control method as claimed in claim 5 is characterized in that, step (a) also comprises: maximum (top) speed and rotating speed raising value that said fan is set.
7. fan cooling control method as claimed in claim 6 is characterized in that, also comprises step afterwards in step (e):
(f), the current rotating speed of fan is increased a rotating speed raising value, and judge that whether rotating speed after the fan raising is less than maximum (top) speed when the second operating temperature value of CPU during more than or equal to maximum temperature values;
When (g) rotating speed after fan improves was less than maximum (top) speed, the control fan dispelled the heat to CPU according to the rotating speed after improving, when fan reaches set heat radiation during the time, through the 3rd operating temperature value of temperature transducer detecting CPU to time of CPU heat radiation;
(h) when the 3rd operating temperature value of CPU during, be back to step more than or equal to maximum temperature
(f) the current rotating speed with fan increases a rotating speed raising value, and judges that whether rotating speed after the fan raising is less than maximum (top) speed;
(i) when the 3rd operating temperature value of CPU during less than maximum temperature, to initial speed, and the control fan turns to said initial heat radiation position with the current speed drop of fan.
8. fan cooling control method as claimed in claim 7 is characterized in that, also comprises step:
Rotating speed after fan improves is during more than or equal to maximum (top) speed, and the control fan dispels the heat to CPU with said maximum (top) speed, so that the operating temperature of CPU is less than maximum temperature values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102120372A CN102312850A (en) | 2010-06-29 | 2010-06-29 | Heat-radiation control system and method of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102120372A CN102312850A (en) | 2010-06-29 | 2010-06-29 | Heat-radiation control system and method of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102312850A true CN102312850A (en) | 2012-01-11 |
Family
ID=45426311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102120372A Pending CN102312850A (en) | 2010-06-29 | 2010-06-29 | Heat-radiation control system and method of fan |
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| Country | Link |
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| CN (1) | CN102312850A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106765939A (en) * | 2016-12-16 | 2017-05-31 | 江苏海创电气科技有限公司 | A kind of intelligence two dimension wind-heat control energy-saving control system |
| CN108334175A (en) * | 2018-01-08 | 2018-07-27 | 南宁市浩发科技有限公司 | A kind of notebook intelligent heat dissipation pedestal and its control method |
| CN110750065A (en) * | 2019-10-31 | 2020-02-04 | 安徽三弟电子科技有限责任公司 | Adjustable intelligent temperature controller device |
| CN116906362A (en) * | 2023-08-31 | 2023-10-20 | 肇庆晟辉电子科技有限公司 | System and method for controlling rotation speed of cooling fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106765939A (en) * | 2016-12-16 | 2017-05-31 | 江苏海创电气科技有限公司 | A kind of intelligence two dimension wind-heat control energy-saving control system |
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| CN116906362A (en) * | 2023-08-31 | 2023-10-20 | 肇庆晟辉电子科技有限公司 | System and method for controlling rotation speed of cooling fan |
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Application publication date: 20120111 |