CN105221467A - Rotation speed of the fan adjust system and method - Google Patents
Rotation speed of the fan adjust system and method Download PDFInfo
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Abstract
The invention provides a kind of rotation speed of the fan adjust system and method, this system comprises: sampling module, samples CPU usage, temperature value and rotation speed of the fan value when temperature-sensitive sticker is normal; Creation module, builds utilization rate function, temperature function and speed functions according to the utilization rate sampled, temperature value and tachometer value; Creation module also sets up the first function between temperature value and tachometer value according to temperature function and speed functions; Creation module also sets up the second function between utilization rate and temperature value according to utilization rate function and temperature function; Creation module also builds the 3rd function between utilization rate and tachometer value according to the first function and the second function; Acquisition module, Real-time Obtaining CPU usage; Computing module, according to the utilization rate of Real-time Obtaining and the rotation speed of the fan value of the 3rd function calculating correspondence; And adjusting module, current rotation speed of the fan value is adjusted to the tachometer value calculated.The present invention still normally can adjust rotation speed of the fan when temperature-sensitive sticker damages.
Description
Technical field
The present invention relates to a kind of rotation speed of the fan adjust system and method.
Background technique
The application of server is more and more extensive now, in IDC (InternetDataCenter) machine room, the scale of server is increasing, so numerous servers operationally can produce amount of heat, ambient temperature is increased, thus have influence on the normal work of server, wherein, CPU is the source mainly producing heat.In order to CPU heat radiation, set temperature sensor and radiation fan in the server usually, the temperature of temperature-sensitive sticker to CPU is detected, and the temperature that fan is detected according to temperature-sensitive sticker regulates its rotating speed.But the situation of damage may appear in some temperature-sensitive stickers, now fan normally cannot carry out rotational speed regulation, thus causes the too high normal work having influence on server of cpu temperature.
Summary of the invention
In view of this, be necessary to provide a kind of rotation speed of the fan adjust system and method, be intended to solve the problems of the technologies described above.
The invention provides a kind of rotation speed of the fan adjust system, this system cloud gray model, in a server, is provided with temperature-sensitive sticker and fan in this server, and this fan is used for dispelling the heat to server CPU, and this temperature-sensitive sticker is for detecting the temperature of CPU, and this system comprises:
Sampling module, for when temperature-sensitive sticker normally works, samples the cpu temperature value of CPU usage, temperature-sensitive sticker detecting and rotation speed of the fan value in a preset time period;
Creation module, for building CPU usage function C according to the CPU usage of sampling, cpu temperature value builds temperature function H and rotation speed of the fan value builds rotation speed of the fan function F;
Temperature function when this creation module is also for normally working according to temperature-sensitive sticker and rotation speed of the fan function, set up the first function phi between cpu temperature value and rotation speed of the fan value, wherein, and F=Φ H;
CPU usage function when this creation module is also for normally working according to temperature-sensitive sticker and cpu temperature value function, set up the second function Ξ between CPU usage and temperature value, wherein, and H=Ξ C;
This creation module is also for according to the first function phi and the second function Ξ, and the 3rd function built between CPU usage and rotation speed of the fan value is F=Φ Ξ C, and wherein, C is CPU usage, and F is the rotation speed of the fan value that CPU is corresponding under this utilization rate;
Acquisition module, for the utilization rate of Real-time Obtaining CPU;
Computing module, for calculating corresponding rotation speed of the fan value according to the CPU usage of Real-time Obtaining and the 3rd function; And
Adjusting module, for being adjusted to the rotation speed of the fan value calculated by current rotation speed of the fan value.
The present invention also provides a kind of rotation speed of the fan adjusting method, the method is applied in a server, is provided with temperature-sensitive sticker and fan in this server, and this fan is used for dispelling the heat to server CPU, this temperature-sensitive sticker is for detecting the temperature of CPU, and the method comprises the following steps:
When temperature-sensitive sticker normally works, in a preset time period, the cpu temperature value of CPU usage, temperature-sensitive sticker detecting and rotation speed of the fan value are sampled;
Build CPU usage function C according to the CPU usage of sampling, cpu temperature value builds temperature function H and rotation speed of the fan value builds rotation speed of the fan function F;
Temperature function when normally working according to temperature-sensitive sticker and rotation speed of the fan function, set up the first function phi between cpu temperature value and rotation speed of the fan value, wherein, and F=Φ H;
CPU usage function when normally working according to temperature-sensitive sticker and cpu temperature value function, set up the second function Ξ between CPU usage and temperature value, wherein, and H=Ξ C;
According to the first function phi and the second function Ξ, the 3rd function built between CPU usage and rotation speed of the fan value is F=Φ Ξ C, and wherein, C is CPU usage, and F is the rotation speed of the fan value that CPU is corresponding under this utilization rate;
The utilization rate of Real-time Obtaining CPU;
According to the CPU usage of Real-time Obtaining and the rotation speed of the fan value of the 3rd function calculating correspondence; And
Current rotation speed of the fan value is adjusted to the rotation speed of the fan value calculated.
Compared to prior art, rotation speed of the fan adjust system provided by the invention and method are by building the relation function between CPU usage and rotation speed of the fan value, make the fan in server can without the need to directly adjusting its rotating speed based on the utilization rate of CPU based on temperature, even if thus when temperature-sensitive sticker in the server damages, fan still normally can carry out adjustment of rotational speed.
Accompanying drawing explanation
Fig. 1 is the application structure figure of rotation speed of the fan adjust system of the present invention preferred embodiment;
Fig. 2 is the flow chart of rotation speed of the fan adjusting method of the present invention preferred embodiment.
Primary component symbol description
| Server | 1 |
| Processing unit | 10 |
| Temperature-sensitive sticker | 11 |
| Fan | 12 |
| Rotation speed of the fan adjust system | 100 |
| Sampling module | 101 |
| Creation module | 102 |
| Acquisition module | 103 |
| Computing module | 104 |
| Adjusting module | 105 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1, is the application structure figure of rotation speed of the fan adjust system 100 of the present invention.This rotation speed of the fan adjust system 100 runs in a server 1.This server 1 comprises CPU (CentralProcessingUnit, central processing unit (CPU)) 10, is also provided with temperature-sensitive sticker 11 and fan 12 in this server 1.This fan 12 is for dispelling the heat to CPU10.This temperature-sensitive sticker 11 is for detecting the temperature of CPU10.
This rotation speed of the fan adjust system 100 includes several modules, and these several modules for can completing the sequence of program instructions section of predetermined function performed by this CPU10.These several modules comprise sampling module 101, creation module 102, acquisition module 103, computing module 104 and adjusting module 105.These several module stores are in this server 1.
This sampling module 101, for when temperature-sensitive sticker 11 normally works, samples the cpu temperature value of CPU usage, temperature-sensitive sticker 11 detecting and rotation speed of the fan value in a preset time period.Concrete, this sampling module 101 carries out timing sampling to the cpu temperature value of the CPU usage of server 1, temperature-sensitive sticker 11 detecting and rotation speed of the fan value in a preset time period (such as 1 hour).In the present embodiment, this sampling module 101 carries out primary sample to these three parameters in every 1 second respectively.
This creation module 102 builds rotation speed of the fan function F for building CPU usage function C, cpu temperature value structure temperature function H and rotation speed of the fan value according to the CPU usage of sampling.Concrete, the CPU usage function of this structure is:
Wherein,
for CPU usage difference, c is the CPU usage of sampling, c
0for acquiescence CPU usage,
for CPU usage variance ratio difference,
for the CPU usage variance ratio in preset time period,
for acquiescence CPU usage variance ratio.In the present embodiment, this creation module 102 can create the CPU usage time history plot of sampling, by calculating the CPU usage variance ratio in the slope determination preset time period of adjacent samples half-interval contour each time
the cpu temperature function H of this structure is:
Wherein,
for cpu temperature difference, h is the cpu temperature value of sampling, h
0for acquiescence cpu temperature value,
for cpu temperature variance ratio difference,
for the cpu temperature value variance ratio in preset time period,
for acquiescence cpu temperature variance ratio.In the present embodiment, this creation module 102 can create the cpu temperature time history plot of sampling, by calculating the cpu temperature value variance ratio in the slope determination preset time period of adjacent samples half-interval contour each time
the rotation speed of the fan function F of this structure is:
Wherein,
for rotation speed of the fan difference, f is the rotation speed of the fan value of sampling, f
0for acquiescence rotation speed of the fan value,
for rotation speed of the fan variance ratio difference,
for the rotation speed of the fan variance ratio in preset time period,
for acquiescence rotation speed of the fan variance ratio.In the present embodiment, this creation module 102 can create the rotation speed of the fan value time history plot of sampling, by calculating the rotation speed of the fan variance ratio in the slope determination preset time period of adjacent samples half-interval contour each time
Temperature function when this creation module 102 is also for normally working according to temperature-sensitive sticker 11 and rotation speed of the fan function, set up the first function phi between cpu temperature value and rotation speed of the fan value, wherein,
F＝ΦH(4)
In the present embodiment, this first function phi is one 2 × 2 matrixes, then above-mentioned formula (4) can be converted in conjunction with formula (2):
Known HH
-T=1, wherein, H
-Tbe the inverse matrix of the transposed matrix of H, then formula (4) can be converted to:
FH
-T＝ΦHH
-T＝Φ(6)
Can obtain in conjunction with formula (5) and formula (6):
CPU usage function when this creation module 102 is also for normally working according to temperature-sensitive sticker 11 and cpu temperature value function, set up the second function Ξ between CPU usage and temperature value, wherein,
H＝ΞC(8)
In the present embodiment, this second function Ξ is one 2 × 2 matrixes, then above-mentioned formula (8) can be converted in conjunction with formula (1):
Known CC
-T=1, wherein, C
-Tbe the inverse matrix of the transposed matrix of C, then formula (8) can be transformed to:
HC
-T＝ΞCC
-T＝Ξ(10)
Can obtain in conjunction with formula (9) and formula (10):
This creation module 102 is also for according to the first function phi and the second function Ξ, and the 3rd function built between CPU usage and rotation speed of the fan value is:
F＝ΦΞC(12)
Wherein, C is CPU usage, and F is the rotation speed of the fan value that CPU10 is corresponding under this utilization rate.
This acquisition module 103 is for the utilization rate of Real-time Obtaining CPU10.
This computing module 104 is for calculating corresponding rotation speed of the fan value according to the CPU usage of Real-time Obtaining and the 3rd function.Concrete, in conjunction with above-mentioned formula (1), formula (2), formula (3), formula (7), formula (11) and formula (12), rotation speed of the fan value corresponding under this utilization rate can being obtained according to the CPU usage obtained.
This adjusting module 105 is for being adjusted to the rotation speed of the fan value calculated by current rotation speed of the fan value.
Please refer to Fig. 2, is the flow chart of rotation speed of the fan adjusting method of the present invention.
Step S101, when temperature-sensitive sticker 11 normally works, samples the cpu temperature value of CPU usage, temperature-sensitive sticker detecting and rotation speed of the fan value in a preset time period.
Step S102, builds CPU usage function C according to the CPU usage of sampling, cpu temperature value builds temperature function H and rotation speed of the fan value builds rotation speed of the fan function F.
Step S103, temperature function when normally working according to temperature-sensitive sticker 11 and rotation speed of the fan function, set up the first function phi between cpu temperature value and rotation speed of the fan value, wherein, F=Φ H.
Step S104, CPU usage function when normally working according to temperature-sensitive sticker 11 and cpu temperature value function, set up the second function Ξ between CPU usage and temperature value, wherein, H=Ξ C.
Step S105, according to the first function phi and the second function Ξ, the 3rd function built between CPU usage and rotation speed of the fan value is F=Φ Ξ C, and wherein, C is CPU usage, and F is the rotation speed of the fan value that CPU10 is corresponding under this utilization rate.
Step S106, the utilization rate of Real-time Obtaining CPU10.
Step S107, according to the CPU usage of Real-time Obtaining and the rotation speed of the fan value of the 3rd function calculating correspondence.
Step S108, is adjusted to the rotation speed of the fan value calculated by current rotation speed of the fan value.
Claims (8)
1. a rotation speed of the fan adjust system, this system cloud gray model, in a server, is provided with temperature-sensitive sticker and fan in this server, this fan is used for dispelling the heat to server CPU, and this temperature-sensitive sticker, for detecting the temperature of CPU, is characterized in that, this system comprises:
Sampling module, for when temperature-sensitive sticker normally works, samples the cpu temperature value of CPU usage, temperature-sensitive sticker detecting and rotation speed of the fan value in a preset time period;
Creation module, for building CPU usage function C according to the CPU usage of sampling, cpu temperature value builds temperature function H and rotation speed of the fan value builds rotation speed of the fan function F;
Temperature function when this creation module is also for normally working according to temperature-sensitive sticker and rotation speed of the fan function, set up the first function phi between cpu temperature value and rotation speed of the fan value, wherein, and F=Φ H;
CPU usage function when this creation module is also for normally working according to temperature-sensitive sticker and cpu temperature value function, set up the second function Ξ between CPU usage and temperature value, wherein, and H=Ξ C;
This creation module is also for according to the first function phi and the second function Ξ, and the 3rd function built between CPU usage and rotation speed of the fan value is F=Φ Ξ C, and wherein, C is CPU usage, and F is the rotation speed of the fan value that CPU is corresponding under this utilization rate;
Acquisition module, for the utilization rate of Real-time Obtaining CPU;
Computing module, for calculating corresponding rotation speed of the fan value according to the CPU usage of Real-time Obtaining and the 3rd function; And
Adjusting module, for being adjusted to the rotation speed of the fan value calculated by current rotation speed of the fan value.
2. rotation speed of the fan adjust system as claimed in claim 1, is characterized in that, CPU usage function C, cpu temperature function H that this creation module builds and rotation speed of the fan function F are respectively:
Wherein,
for CPU usage difference, c is the CPU usage of sampling, c
0for acquiescence CPU usage,
for CPU usage variance ratio difference,
for the CPU usage variance ratio in preset time period,
for acquiescence CPU usage variance ratio,
for cpu temperature difference, h is the cpu temperature value of sampling, h
0for acquiescence cpu temperature value,
for cpu temperature variance ratio difference,
for the cpu temperature value variance ratio in preset time period,
for acquiescence cpu temperature variance ratio,
for rotation speed of the fan difference, f is the rotation speed of the fan value of sampling, f
0for acquiescence rotation speed of the fan value,
for rotation speed of the fan variance ratio difference,
for the rotation speed of the fan variance ratio in preset time period,
for acquiescence rotation speed of the fan variance ratio.
3. rotation speed of the fan adjust system as claimed in claim 2, it is characterized in that, the first function phi between this cpu temperature value and rotation speed of the fan value is a matrix, wherein,
4. rotation speed of the fan adjust system as claimed in claim 2, it is characterized in that, the transfer function Ξ between this CPU usage and temperature value is a matrix, wherein,
5. a rotation speed of the fan adjusting method, the method is applied in a server, is provided with temperature-sensitive sticker and fan in this server, this fan is used for dispelling the heat to server CPU, this temperature-sensitive sticker, for detecting the temperature of CPU, is characterized in that, the method comprises the following steps:
When temperature-sensitive sticker normally works, in a preset time period, the cpu temperature value of CPU usage, temperature-sensitive sticker detecting and rotation speed of the fan value are sampled;
Build CPU usage function C according to the CPU usage of sampling, cpu temperature value builds temperature function H and rotation speed of the fan value builds rotation speed of the fan function F;
Temperature function when normally working according to temperature-sensitive sticker and rotation speed of the fan function, set up the first function phi between cpu temperature value and rotation speed of the fan value, wherein, and F=Φ H;
CPU usage function when normally working according to temperature-sensitive sticker and cpu temperature value function, set up the second function Ξ between CPU usage and temperature value, wherein, and H=Ξ C;
According to the first function phi and the second function Ξ, the 3rd function built between CPU usage and rotation speed of the fan value is F=Φ Ξ C, and wherein, C is CPU usage, and F is the rotation speed of the fan value that CPU is corresponding under this utilization rate;
The utilization rate of Real-time Obtaining CPU;
According to the CPU usage of Real-time Obtaining and the rotation speed of the fan value of the 3rd function calculating correspondence; And
Current rotation speed of the fan value is adjusted to the rotation speed of the fan value calculated.
6. rotation speed of the fan adjusting method as claimed in claim 5, it is characterized in that, CPU usage function C, the cpu temperature function H of this structure and rotation speed of the fan function F are respectively:
Wherein,
for CPU usage difference, c is the CPU usage of sampling, c
0for acquiescence CPU usage,
for CPU usage variance ratio difference,
for the CPU usage variance ratio in preset time period,
for acquiescence CPU usage variance ratio,
for cpu temperature difference, h is the cpu temperature value of sampling, h
0for acquiescence cpu temperature value,
for cpu temperature variance ratio difference,
for the cpu temperature value variance ratio in preset time period,
for acquiescence cpu temperature variance ratio,
for rotation speed of the fan difference, f is the rotation speed of the fan value of sampling, f
0for acquiescence rotation speed of the fan value,
for rotation speed of the fan variance ratio difference,
for the rotation speed of the fan variance ratio in preset time period,
for acquiescence rotation speed of the fan variance ratio.
7. rotation speed of the fan adjusting method as claimed in claim 6, it is characterized in that, the first function phi between this cpu temperature value and rotation speed of the fan value is a matrix, wherein,
8. rotation speed of the fan adjusting method as claimed in claim 6, it is characterized in that, the transfer function Ξ between this CPU usage and temperature value is a matrix, wherein,
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| CN112443507A (en) * | 2019-08-30 | 2021-03-05 | 宏碁股份有限公司 | Intelligent fan rotating speed adjusting method, computer device and server |
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Effective date of registration: 20191206 Address after: 239300 Xin Xin road, Qin Lan economic development zone, Chuzhou City Tianzhang City of Anhui Province Patentee after: TIANCHANG WANKE ELECTRICAL APPLIANCE ACCESSORY FACTORY Address before: 224043 No. 1 Yuanwei Road, Shoe Machinery Equipment, Dagang Town, Yancheng City, Jiangsu Province Patentee before: Jiangsu Yuanhua Light Chemical equipment Co., Ltd. |