CN107882763A - Revolution speed control device and its method - Google Patents
Revolution speed control device and its method Download PDFInfo
- Publication number
- CN107882763A CN107882763A CN201711095585.XA CN201711095585A CN107882763A CN 107882763 A CN107882763 A CN 107882763A CN 201711095585 A CN201711095585 A CN 201711095585A CN 107882763 A CN107882763 A CN 107882763A
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- Prior art keywords
- temperature
- temperature value
- value
- hard disk
- sensing component
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Classifications
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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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/70—Type of control algorithm
- F05D2270/706—Type of control algorithm proportional-integral-differential
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a kind of revolution speed control device, and suitable for computer system, computer system includes hard disk and fan.Rotating speed control dress includes temperature sensing component, process circuit and PID (PID) controller, wherein process circuit and is electrically connected at temperature sensing component and PID controller.Temperature sensing component is used to be arranged at the side of hard disk and has gap between hard disk, and the first temperature value is produced to the temperature of the air-flow in sensing gap.Process circuit is to according to the first temperature value and temperature conversion equation acquirement second temperature value.PID controller is then to the rotating speed according to second temperature value control fan.The invention also discloses a kind of method for controlling number of revolution.
Description
Technical field
The present invention controls on a kind of revolution speed control device especially with regard to the rotating speed of the fan suitable for computer system
Device.
Background technology
At present when performing radiating to the hard disk of computer system or other systems, typically using the temperature of air inlet as
Parameter controls to carry out the rotating speed of fan, but this existing method for controlling number of revolution is to be in its temperature under full load condition according to hard disk
Value not over the condition of preset temperature value to control rotation speed of the fan, therefore when system is in unloaded or undercapacity state
When, existing method for controlling number of revolution still controls fan to maintain to correspond to the rotating speed that system is fully loaded with, thus produces unnecessary energy consumption
Take.
The content of the invention
In view of above-mentioned, the present invention provides a kind of revolution speed control device and its method.
According to the revolution speed control device of one embodiment of the invention, suitable for computer system, computer system includes hard disk
And fan.Rotating speed control dress include temperature sensing component, process circuit and PID (proportional-
Integral-derivative, PID) controller, wherein process circuit is electrically connected at temperature sensing component and PID control
Device.Temperature sensing component is used to be arranged at the side of hard disk and has gap between hard disk, and to the gas in sensing gap
The temperature of stream and produce the first temperature value.Process circuit is warm to obtain second according to the first temperature value and temperature conversion equation
Angle value.PID controller is then to the rotating speed according to second temperature value control fan.
According to the method for controlling number of revolution of one embodiment of the invention, the computer system suitable for including hard disk and fan.
Method for controlling number of revolution includes setting temperature sensing component to make have gap between temperature sensing component and hard disk in the side of hard disk；
The temperature of air-flow in sensing gap produces the first temperature value；The second temperature is obtained according to the first temperature value and temperature conversion equation
Angle value, wherein temperature conversion equation are the functions of the first temperature value；And controlled according to second temperature value with pid control mode
The rotating speed of fan.
By said structure, revolution speed control device and its method disclosed in this case, by temperature sensing component and computer
The hard disc spacer of system is set, then the conversion by the temperature value that temperature sensing component is sensed by temperature conversion equation,
The temperature value for being close to hard disk actual temperature is obtained using the input value as PID controller, and then lifts rotation speed of the fan and reality
The correspondence of temperature, the existing default hard disk of reduction are full load condition to control the energy charge caused by rotation speed of the fan.
The explanation of explanation and implementation below above with respect to present invention to demonstrate and explain the present invention original
Reason, and the claims for providing the present invention are further explained.
Brief description of the drawings
Fig. 1 is the functional block diagram according to the revolution speed control device depicted in one embodiment of the invention.
Fig. 2 is the configuration diagram according to the revolution speed control device depicted in one embodiment of the invention.
Fig. 3 is the flow chart according to the method for controlling number of revolution depicted in one embodiment of the invention.
Fig. 4 is that the temperature value of the relation test depicted in foundation one embodiment of the invention compares figure.
Fig. 5 is the thin portion flow chart according to the method for controlling number of revolution depicted in another embodiment of the present invention.
Wherein, reference：
1 revolution speed control device
11 temperature sensing components
111 gaps
13 process circuits
15 PID controllers
5 computer systems
51 hard disks
511 motors
513 side walls
53 fans
55 mainboards
Tsdr sensing temperature angle value
Tsmart average temperature values
Ttc electric thermo-couple temperature values
DT differences
Embodiment
The detailed features and advantage of the narration present invention, its content are enough to make any ability in detail in embodiments below
The technical staff in domain understands the technology contents of the present invention and implemented according to this, and is wanted according to content disclosed in this specification, right
Protection domain and accompanying drawing are asked, any those skilled in the art can be readily understood upon the purpose and advantage of correlation of the invention.Below
Embodiment the viewpoint of the present invention is further described, it is but non-anyways to limit scope of the invention.
Fig. 1 is refer to, Fig. 1 is the functional block diagram according to the revolution speed control device depicted in one embodiment of the invention.Such as
Shown in Fig. 1, revolution speed control device 1 is applied to computer system 5, and wherein computer system 5 includes hard disk 51 and fan 53.Turn
Velocity control device 1 includes temperature sensing component 11, process circuit 13 and PID (PID) controller 15, wherein locating
Reason circuit 13 is electrically connected at temperature sensing component 11 and PID controller 15.
Temperature sensing component 11 is used to be arranged at the side of the hard disk 51 of computer system 5 and between hard disk 51 having
Gap 111, and for the temperature of the air-flow in sensing gap 111 to produce the first temperature value.For example, temperature sensing component 11
Gap 111 between hard disk 51 is less than or equal to 15 millimeters.In an embodiment, temperature sensing component 11 includes TEMP
Device, and temperature sensing component 11 is used as the first temperature value using the temperature that temperature sensor is sensed.In another embodiment, temperature
Degree sensing component 11 includes multiple temperature sensors, and temperature sensing component 11 is sensed with the multiple temperature sensor
The average value of temperature is as the first temperature value.For example, temperature sensor can be thermocouple (thermocouple), resistance
Thermometer (RTD) or thermistor, the present invention not limit.
Process circuit 13 is, for example, central processing unit (central processing unit, CPU), microcontroller
(microcontroller unit, MCU), field programmable gate array (field programmable gate array,
FPGA), application specific integrated circuit (application specific integrated circuit, ASIC), or other processing
Device.Process circuit 13 is to according to the first temperature value and temperature conversion equation acquirement second temperature value, wherein temperature conversion
The detailed content of equation will be in rear description.PID controller 15 is then made up of proportional unit, integral unit and differentiation element,
And to the rotating speed according to second temperature value control fan 51.
Please also refer to Fig. 1 and Fig. 2 the setting in computer system 5 of revolution speed control device 1 is described in more detail again
Seated position.Fig. 2 is the configuration diagram according to the revolution speed control device depicted in one embodiment of the invention.As it was previously stated, rotating speed
Between the temperature sensing component 11 of control device 1 is arranged at the side of the hard disk 51 of computer system 5 and had between hard disk 51
Gap 111.Specifically, as shown in figure 5, the position set by temperature sensing component 11 is provided with the side wall of motor 511 with hard disk 5
513 have gap 111.That is, temperature sensing component 11 is provided with the phase of side wall 513 of motor 511 with gap 111 with hard disk 51
Mutually interval.For example, temperature sensing component 11 can be arranged at the lower section of the motor 511 of hard disk 51, and between motor 511
Gap 111 can be less than or equal to 15 millimeters, therefore the temperature that measures of temperature sensing component 11 and the reality of hard disk 51
Temperature has high correlation, has higher precision.In this embodiment, temperature sensing component 11, process circuit 13 with
And one or more in PID controller 15 may be disposed at the mainboard 55 of computer system 5.In another embodiment, rotating speed control
Device 1 further comprises that circuit board is one or more in temperature sensing component 11, process circuit 13 and PID controller 15 for integrating
It is individual.
Next it is according to the method for controlling number of revolution depicted in one embodiment of the invention please also refer to Fig. 1 and Fig. 3, Fig. 3
Flow chart.In this embodiment, method for controlling number of revolution is applied to revolution speed control device 1, the wind for control computer system 5
The rotating speed of fan 53.In step S11, temperature sensing component 11 is set in the side of the hard disk 51 of computer system 5, and make temperature
There is gap 111 between sensing component 11 and hard disk.In step S13, the air-flow in the sensing gap 111 of temperature sensing component 11
Temperature to produce the first temperature value.For example, the first temperature value can be the temperature sense that single temperature sensor is formed
What the temperature sensing component 11 that the temperature or multiple temperature sensors that survey component 11 is sensed are formed was sensed
The average value of multiple temperature.Then in step S15, process circuit 13 obtains according to the first temperature value and temperature conversion equation
Second temperature simultaneously sends PID controller 15 to.In an embodiment, temperature conversion equation is using the first temperature value as parameter
Function, to obtain reduced temperature value, wherein the dutycycle of the temperature conversion equation and fan 53 is negative correlation, and duty
It is positive correlation than the convection transfer rate between the air-flow in gap 111 and hard disk 51.Come again in step S17, PID control
Device 15 controls the rotating speed of fan according to second temperature value with pid control mode.
Specifically, temperature conversion equation of the process circuit 13 used in step S15 be in a variety of environment temperatures,
The pass of sensing temperature angle value, electric thermo-couple temperature value and average temperature value is carried out under conditions of a variety of pressure and a variety of fan dutycycles
System tests and pushed away.Wherein sensing temperature angle value is the temperature value acquired by the air-flow in the sensing gap 111 of temperature sensing component 11；
Average temperature value be hard disk 51 inside intelligent surveillance device by the temperature parameter of each thermal source inside hard disk 51 through weight calculation
Resulting temperature value afterwards；Electric thermo-couple temperature value is then the side that hard disk 51 is arranged at when carrying out relation test (on particularly
State the side wall 513 provided with motor 511) the surface temperature value of the side that is sensed of thermocouple, that is, calculate average temperature value
One of in multiple temperature parameters.According to law of conservation of energy and newton convection current cooling formula, sensing temperature can be derived from
Relation between value and electric thermo-couple temperature value be present, and electric thermo-couple temperature value is joined to obtain one of average temperature value temperature
Number, thus push away there is also relation between sensing temperature angle value and average temperature value.
In an embodiment, above-mentioned relation test may comprise steps of：Set environment temperature is definite value；Using hard
Disk loading tool loads hard disk；Obtain sensing temperature angle value, average temperature value and the thermocouple corresponding to multiple fan dutycycles
Temperature value, and calculate the difference between sensing temperature angle value and mean temperature；And according to each temperature value and fan dutycycle
Obtain temperature conversion equation.It is to implement according to the present invention one please also refer to Fig. 1 and Fig. 4, Fig. 4 for the example of a reality
The temperature value of relation test depicted in example compares figure.Fig. 4 is shown in environment temperature 30 degree and hard disk 51 Celsius as fully loaded survey
In the case of examination, the sensing temperature angle value Tsdr corresponding with multiple fan dutycycles, average temperature value Tsmart, the thermoelectricity that are detected
Difference dT between even temperature value Ttc and calculated sensing temperature angle value Tsdr and average temperature value Tsmart.Such as Fig. 4 institutes
Show, difference dT for negative correlation and has linear relationship with fan dutycycle, and the sensing temperature measured with temperature sensing component 11
Value Tsdr is positive correlation and also has linear relationship.
Therefore by relation test, can push away must be used to indicate between sensing temperature angle value Tsdr and average temperature value Tsmart
Linear relationship temperature conversion equation, that is to say, that temperature conversion equation can be that sensing temperature angle value Tsdr is multiplied by and is
Number adds default intercept to calculate average temperature value Tsmart.Consequently, it is possible to subsequently carrying out the fan of computer system 5
When 53 rotating speeds control, the first temperature value that temperature sensing component 11 measures can obtain conversion by temperature conversion equation
Temperature value, wherein reduced temperature value relation are in the actual temperature value (i.e. above-mentioned average temperature value) of hard disk 51, to reach accurate
Rotating speed control.In addition, the process circuit 13 of revolution speed control device 1 will pass through the temperature conversion equation acquired by relation test
The internal memory of revolution speed control device 1, or the built-in memory of computer system 5 are stored in, to establish temperature conversion equation data
Storehouse.By carrying out relation test to polytype computer system respectively, can have in temperature conversion equation database
Correspond respectively to multiple preset temperature scaling equations of polytype computer system.Consequently, it is possible to turned
During speed control, process circuit 13 can incite somebody to action according to preset temperature scaling equations corresponding to the type loading of computer system 5
The first temperature value that temperature sensing component 11 is sensed is scaled reduced temperature value.
In an embodiment, above-mentioned reduced temperature value as second temperature value and is sent to PID control by process circuit 13
Device 15 is controlled with carrying out the rotating speed of fan 53.In another embodiment, Fig. 1 and Fig. 5, Fig. 5 are refer to as according to this embodiment institute
The detailed step of step S15 in the thin portion flow chart of the method for controlling number of revolution illustrated, i.e. Fig. 3 method for controlling number of revolution.Yu Bu
In rapid S21, process circuit 13 judges whether reduced temperature value indicates hard disk 51 towards temperature sensing component 11 according to verification condition
Surface (i.e. side wall 513) temperature.For the example of a reality, when revolution speed control device 1 is arranged at into computer system 5
When, the process circuit 13 of revolution speed control device 1 will be loaded into according to the type of computer system 5 from temperature conversion equation database
Corresponding preset temperature scaling equations, to carry out the conversion of the first temperature value, then judge that reduced temperature value is supervised with internal intelligence
Whether the difference between average temperature value measured by visual organ is less than default error range, to judge whether reduced temperature value indicates
The temperature of the side wall 513 of hard disk 51.When the result for when being, process circuit 13 is used as second temperature value using reduced temperature value；
When the result for it is no when, process circuit 13 is by reduced temperature value plus correction value as second temperature value and to be sent to PID
Controller 15, as described in step S23.
The second temperature value of acquirement is sent to PID controller 15 by process circuit 13, and PID controller 15 is again according to the second temperature
Angle value controls the rotating speed of fan with pid control mode.In more detail, PID controller 15 is with preset temperature value and second temperature
Difference between value passes through the controlled quentity controlled variable of pid algorithm acquirement fan as input value.For example, preset temperature relation is in hard disk
51 optimum working temperature, and pid algorithm is, for example, by scale parameter, integral parameter, differential parameter and above-mentioned input value institute group
Into equation.In an embodiment, three parameters of PID controller 15 are respectively pre-set value.In another embodiment,
Three parameters of PID controller 15 can be by Ziegler-Mike Nichols (Ziegler-Nichols) method, Ke En-Ku En
(Cohen-Coon) method, or other method adjust in real time, and the present invention not limits.
Compared to foregoing existing method for controlling number of revolution, revolution speed control device that one or more embodiments of this case are proposed
And its method can control rotation speed of the fan according to the virtual condition of hard disk.Actual experimental data refer to table 1, and table 1 is this
Rotating speed control and existing rotating speed disclosed in one or more embodiments of case are controlled caused by under different disk states
Control power consumption.It can be learnt by table 1, the revolution speed control device and its method of this case, when hard disk is the state of undercapacity, due to being
According to being close to the temperature value of hard disk actual temperature to carry out rotating speed control, it is small when compared with hard disk being full load condition that it controls power consumption,
Reduce unnecessary energy charge.
Table 1
By above-mentioned framework, revolution speed control device and its method disclosed in this case, by temperature sensing component and computer
The hard disc spacer of system is set, then the conversion by the temperature value that temperature sensing component is sensed by temperature conversion equation,
The temperature value for being close to hard disk actual temperature is obtained using the input value as PID controller, and then lifts rotation speed of the fan and reality
The correspondence of temperature, the existing default hard disk of reduction are full load condition to control the energy charge caused by rotation speed of the fan.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art when can be made according to the present invention it is various it is corresponding change and deformation, but these corresponding change and become
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of revolution speed control device, suitable for a computer system, the computer system includes a hard disk and a fan, its
It is characterised by, the revolution speed control device includes：
One temperature sensing component, for being arranged at the hard disk side and there is a gap between the hard disk, and to sense this
The temperature of air-flow in gap and produce one first temperature value；
One process circuit, the temperature sensing component is electrically connected at, to according to first temperature value and a temperature conversion equation
Formula obtains a second temperature value；And
One proportional plus integral plus derivative controller, the process circuit is electrically connected with, to control the fan according to the second temperature value
Rotating speed.
2. revolution speed control device according to claim 1, it is characterised in that the temperature conversion equation relation is in the fan
Dutycycle, the convection transfer rate between the air-flow and the hard disk of the duty cycle relationship in the gap.
3. revolution speed control device according to claim 1, it is characterised in that the process circuit is according to first temperature value
And the temperature conversion equation judges that first temperature value changes through the temperature when obtaining the second temperature value according to a verification condition
Calculate whether the reduced temperature value that is calculated of equation indicates the hard disk towards the temperature on the surface of the temperature sensing component, when
When the result is no, the reduced temperature value is added a correction value to calculate the second temperature value by the process circuit.
4. revolution speed control device according to claim 1, it is characterised in that the temperature sensing component be used for the gap with
The side wall that the hard disk is provided with a motor is spaced.
5. revolution speed control device according to claim 1, it is characterised in that the temperature sensing component and the process circuit are set
It is placed in a mainboard of the computer system.
6. revolution speed control device according to claim 1, it is characterised in that the temperature sensing component passes including multiple temperature
Sensor, and the average value of temperature that the temperature sensing component is sensed using those temperature sensors is used as first temperature value.
7. revolution speed control device according to claim 1, it is characterised in that the temperature sensing component includes a TEMP
Device, and the temperature sensing component is used as first temperature value using the temperature that the temperature sensor is sensed.
8. a kind of method for controlling number of revolution, suitable for a computer system, the computer system includes a hard disk and a fan, its
It is characterised by, the method for controlling number of revolution includes：
A temperature sensing component is set to make that there is a gap between the temperature sensing component and the hard disk in the side of the hard disk；
The temperature for sensing the air-flow in the gap produces one first temperature value；
A second temperature value is obtained according to first temperature value and a temperature conversion equation；And
The rotating speed of the fan is controlled in a manner of PID control parameter according to the second temperature value；
Wherein the temperature conversion equation is the function of first temperature value.
9. method for controlling number of revolution according to claim 8, it is characterised in that the temperature conversion equation relation is in the fan
Dutycycle, the convection transfer rate between the air-flow and the hard disk of the duty cycle relationship in the gap.
10. method for controlling number of revolution according to claim 8, it is characterised in that changed according to first temperature value and the temperature
Calculation equation, which obtains the second temperature value, to be included：
Judge whether is a reduced temperature value that first temperature value calculates through the temperature conversion equation according to a verification condition
Indicate the hard disk towards the temperature on the surface of the temperature sensing component；And
When the result is no, by the reduced temperature value plus a correction value to be used as the second temperature value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711095585.XA CN107882763B (en) | 2017-11-09 | 2017-11-09 | Rotational speed control device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711095585.XA CN107882763B (en) | 2017-11-09 | 2017-11-09 | Rotational speed control device and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107882763A true CN107882763A (en) | 2018-04-06 |
| CN107882763B CN107882763B (en) | 2020-02-14 |
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ID=61779602
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711095585.XA Active CN107882763B (en) | 2017-11-09 | 2017-11-09 | Rotational speed control device and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873069A (en) * | 2018-08-31 | 2020-03-10 | 阿里巴巴集团控股有限公司 | Method and device for controlling fan parameters |
| CN116025554A (en) * | 2023-03-30 | 2023-04-28 | 深圳艾为电气技术有限公司 | Method and device for controlling electric compressor based on common-mode inductance |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526183A (en) * | 2014-09-30 | 2016-04-27 | 联想(北京)有限公司 | Method and device for controlling rotating speed of fan |
| CN206133417U (en) * | 2016-09-27 | 2017-04-26 | 常州信息职业技术学院 | Pull formula hard disk of computer |
-
2017
- 2017-11-09 CN CN201711095585.XA patent/CN107882763B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526183A (en) * | 2014-09-30 | 2016-04-27 | 联想(北京)有限公司 | Method and device for controlling rotating speed of fan |
| CN206133417U (en) * | 2016-09-27 | 2017-04-26 | 常州信息职业技术学院 | Pull formula hard disk of computer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873069A (en) * | 2018-08-31 | 2020-03-10 | 阿里巴巴集团控股有限公司 | Method and device for controlling fan parameters |
| CN110873069B (en) * | 2018-08-31 | 2021-10-15 | 阿里巴巴集团控股有限公司 | Method and device for controlling fan parameters |
| CN116025554A (en) * | 2023-03-30 | 2023-04-28 | 深圳艾为电气技术有限公司 | Method and device for controlling electric compressor based on common-mode inductance |
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| Publication number | Publication date |
|---|---|
| CN107882763B (en) | 2020-02-14 |
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