CN104154021B - Fan sound-volume control system and apply the fan volume automatic control method of described control system - Google Patents
Fan sound-volume control system and apply the fan volume automatic control method of described control system Download PDFInfo
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- CN104154021B CN104154021B CN201410399148.7A CN201410399148A CN104154021B CN 104154021 B CN104154021 B CN 104154021B CN 201410399148 A CN201410399148 A CN 201410399148A CN 104154021 B CN104154021 B CN 104154021B
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Abstract
The present invention discloses a kind of fan sound-volume control system and applies the fan volume automatic control method of described control system.Fan sound-volume control system has one first volume detecting unit, one second volume detecting unit, a signal processing unit and a control unit.First volume detecting unit is arranged in a computer, in order to detect a computer-internal volume, to obtain a device signal volume.Second volume detecting unit is arranged at outside described computer, in order to detect a computer exterior volume, to obtain an environmental volume signal.Signal processing unit in order to analyze and comparer signal volume and environmental volume signal, to obtain a voltage signal.Control unit is then in order to judge whether voltage signal is greater than a preset voltage value.The present invention can volume inside and outside automatic detecting computer, and the rotation speed of the fan automatically in computer for controlling, maintains within the volume decibel value scope that user presets in advance, solve the problem that fan volume forms noise to make fan volume.
Description
Technical field
The present invention about a kind of computer phoneme amount control system, especially about a kind of fan volume automatic control method that can be used in the fan sound-volume control system in computer and apply described control system.
Background technique
Along with computer technology make rapid progress, no matter be the electronic equipments such as central processing unit (CPU) (CentralProcessingUnit, CPU), wafer set, display card, all there is very outstanding usefulness, even far exceed most user daily needed for.
When user uses computer to carry out more complicated formula, the operating temperature of electronic equipment is easily caused to improve.In order to allow these electronic equipments maintain suitable operating temperature, therefore, electronic equipment, such as CPU and display card, be configured with fan, the air-flow produced by fan, using the use of the heat radiation as electronic equipment.In addition, setting up extra system fan in a computer, is also common technological means with the design of being discharged by the hot air in computer housing.
Generally speaking, the fan of computer-internal is as follows to distinguishing greatly:
1. power supply unit fan inside, purely by power supply unit internal control, cannot be controlled, that is the noise of this fan belongs to uncontrollable by the signal of host board or software.
2. central processing unit (CPU) fan, is controlled by the control signal of host board, and usually along with cpu temperature rises, then central processing unit (CPU) rotation speed of the fan also improves thereupon.
3. display card fan, is controlled by the control signal on display card, and usually along with GPU (GPU) temperature rises, then display card rotation speed of the fan also improves thereupon.
4. system fan, is controlled by the control signal of host board, and usually along with the system temperature in casing rises, then system fan rotating speed also improves thereupon.In addition, part host board also can be designed to along with cpu temperature rises, then system fan rotating speed also improves thereupon.
But the running volume of said fans is the main noise source of computer.Generally speaking, the design of the electronic equipments such as central processing unit, host board or display card, all allow the rotating speed of fan improve along with the operating temperature rising of the electronic equipments such as CPU, graphic process unit (GraphicProcessingUnit, GPU) or host board.The noise that fan produces, usual transfer speed size is directly proportional.
In other words; known host board and display card are to the design concept of fan control; all protect CPU, graphic process unit (GraphicProcessingUnit; GPU) or the electronic equipment such as host board can not be superheated to starting point, and can not consider that fan volume is excessive causes the noise puzzlement formed user.
Therefore, the noise that the fan volume how reducing computer-internal is formed, be related domain dealer one of problem for solving.
Summary of the invention
Because the problems referred to above, the invention provides a kind of fan sound-volume control system and apply the fan volume automatic control method of described control system, and then can volume inside and outside automatic detecting computer, and the rotation speed of the fan in automatic computer for controlling, within maintaining user's volume decibel value scope default in advance to make fan volume, solve the problem that fan volume forms noise.
Based on above-mentioned purpose, the invention provides a kind of fan sound-volume control system, be applicable at least one computer, comprise: at least one first volume detecting unit, each first volume detecting unit can be arranged in corresponding described computer, in order to detect at least one computer-internal volume, to obtain at least one device signal volume; At least one second volume detecting unit, is arranged at outside described computer, in order to detect at least one computer exterior volume, to obtain at least one environmental volume signal; One signal processing unit, be electrically connected the first volume detecting unit and the second volume detecting unit, signal processing unit in order to analytical equipment signal volume and environmental volume signal, and by the environmental volume target signal filter in device signal volume, to obtain a voltage signal; One control unit, be electrically connected at least one fan in signal processing unit and described computer, control unit has a judge module, in order to judge whether voltage signal is greater than a preset voltage value, if so, then control unit in order to control the rotating speed of fan, to reduce the volume of fan.
In the present invention, control unit is electrically connected at least one electronic equipment in computer.Electronic equipment is electrically connected fan, and then control unit is electrically connected fan indirectly.In addition, control unit controls the rotating speed of fan indirectly.
In the present invention, control unit is directly electrically connected the fan in computer.The judge module of control unit is in order to judge whether voltage signal is greater than a preset voltage value, and if so, then control unit directly controls the rotating speed of fan, to reduce the volume of fan.
In the present invention, signal processing unit has a signal analysis unit and a signal conversion unit.
For reaching object of the present invention, the invention provides a kind of fan volume automatic control method applying fan sound-volume control system, cover is used for a fan sound-volume control system and performs, comprise the following steps: by one first volume detecting unit of fan sound-volume control system to detect at least one computer-internal volume, and obtain at least one device signal volume; By one second volume detecting unit of fan sound-volume control system to detect at least one computer exterior volume, and obtain at least one environmental volume signal; By a signal processing unit of fan sound-volume control system with analytical equipment signal volume and environmental volume signal, the environmental volume signal in filtering device signal volume, to obtain at least one voltage signal; Whether the voltage signal judged in described at least one voltage signal by a judge module of a control unit of fan sound-volume control system is in advance greater than the preset voltage value in control unit; When judge module judges that voltage signal is greater than preset voltage value, then controlled at least one fan in described computer by control unit, to reduce the volume of described at least one fan; And when judge module judges that voltage signal is non-and is greater than preset voltage value, then repeat further to enter and describedly judge whether the voltage signal in described at least one voltage signal is greater than the step of the preset voltage value in control unit by the judge module of the control unit of fan sound-volume control system in advance.
In the present invention, wherein, the described step by least one fan in control unit computer for controlling has more: by the running of at least one electronic equipment in control unit computer for controlling, indirectly to control rotating speed and the volume of fan.
In the present invention, wherein, the described step being controlled the running of at least one electronic equipment in described computer by described control unit is to controlling that electronic equipment carries out a frequency reducing, a reduction of speed, starts thermal center stream mechanism or frequency reducing, reduction of speed and starting the combination of thermal center stream mechanism.
In at least one embodiment of the present invention, wherein, the step of the described at least one fan controlled in described computer by described control unit is also comprised: the rotating speed directly being controlled fan or another fan by control unit.
In the present invention, the rotating speed of fan or another fan presets the control of rotation speed of the fan value according to one.
In the present invention, wherein, the described running being controlled at least one electronic equipment by control unit, is synchronously performed with the step of the rotating speed and volume that indirectly control fan and the described step directly being controlled the rotating speed of fan or another fan by control unit.
In the present invention, fan volume automatic control method is in the described running by the electronic equipment in control unit computer for controlling, after the step of the rotating speed and volume that indirectly control fan, also comprise: again judge whether the new voltage signal produced is greater than the preset voltage value in control unit by the judge module of control unit; When judge module judges that the new voltage signal produced is greater than preset voltage value, then control unit directly controls the rotating speed of at least one fan, to reduce the volume of described at least one fan; And judge module is when judging that the new voltage signal produced is non-and be greater than preset voltage value, then repeats further to enter and describedly judge whether the voltage signal in described at least one voltage signal is greater than the step of the preset voltage value in control unit by the judge module of the control unit of fan sound-volume control system in advance.
In the present invention, fan volume automatic control method also comprises: the step being stopped the running of the electronic equipment in computer for controlling by control unit, and it is continued or is synchronized with the described step directly being controlled the rotating speed of described at least one fan by control unit.
In the present invention, fan volume automatic control method also comprises: the step being stopped the electronic equipment running in controlling calculation machine host by control unit, after judge module again by control unit described in being connected in judges whether the new voltage signal produced is greater than the preset voltage value step in control unit, and when judge module judges that the new voltage signal produced is non-and is greater than preset voltage value, first perform the described step being stopped the electronic equipment running in controlling calculation machine host by control unit, repeat further more described in advance by the judge module of control unit judge described at least one in a voltage signal whether be greater than the step of the preset voltage value in control unit.
The advantage that the present invention has is:
Be used for the fan volume automatic control method of sound-volume control system by sound-volume control system of the present invention and cover, user only needs to set a volume decibel value in advance, and described volume decibel value as calculated machine process correspondence forms preset voltage value.By this, sound-volume control system can volume the rotating speed of direct or indirect computer for controlling internal fan inside and outside automatic detecting computer, and fan volume is controlled within the default volume decibel value of user.
Accompanying drawing explanation
Fig. 1 is the block schematic diagram of the fan sound-volume control system of one embodiment of the invention.
Fig. 2 is the fan volume automatic control method flow chart of first embodiment of the invention.
Fig. 3 is fan volume automatic control method thin portion flow chart embodiment illustrated in fig. 2.
Fig. 4 is the fan volume automatic control method flow chart of second embodiment of the invention.
Fig. 5 is the fan volume automatic control method flow chart of third embodiment of the invention.
Fig. 6 is the fan volume automatic control method flow chart of fourth embodiment of the invention.
Fig. 7 A is the graph of a relation of a temperature and fan revolution basic value.
Fig. 7 B is the graph of a relation of a temperature and default rotation speed of the fan value.
In figure:
100 fan volumes control; 10 first volume detecting units; 12 second volume detecting units;
14 signal processing units; 140 signal analysis units; 142 signal conversion units;
16 control unit 160 judge modules; 200 computers; 20 fans; 21 electronic equipments;
22 fans; a
ncomputer-internal volume; b
ncomputer exterior volume; a
n' device signal volume;
B
n' environmental volume signal; c
nvoltage signal; D preset voltage value; E presets rotation speed of the fan value.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
Please also refer to Fig. 1, it is the block schematic diagram of the fan sound-volume control system of one embodiment of the invention.Fan sound-volume control system 100 can be applicable to a computer 200.Fan sound-volume control system 100 has at least one first volume detecting unit 10, at least one second volume detecting unit 12, signal processing unit 14 and control unit 16.
First volume detecting unit 10 is such as a MIC microphone, can be arranged in one or more computer 200, and in order at least one computer-internal volume a of lasting detecting
n, and according to computer-internal volume a
nto obtain at least one device signal volume a
n'.It is noted that symbol n be greater than 0 positive number, the signal that detects before and after representing, separates front and back time detecting or the signal that produces to be made, the such as previous computer-internal volume a detected
nthen be referred to as computer-internal volume a
1, the computer-internal volume a that arrives of Subsequent detection
nthen be referred to as computer-internal volume a
2, and its corresponding produced device signal volume a
n' be then referred to as device signal volume a
1' and device signal volume a
2', the rest may be inferred.
Second volume detecting unit 20 is such as a MIC microphone, is arranged at outside computer 200, and in order at least one computer exterior volume b of lasting detecting
n, and according to computer exterior volume b
nto obtain at least one environmental volume signal b
n'.In like manner, the previous computer exterior volume b detected
nthen be referred to as computer exterior volume b
1, the computer exterior volume b that arrives of Subsequent detection
nthen be referred to as computer exterior volume b
2, and corresponding produced environmental volume signal b
n' be then referred to as environmental volume signal b
1' and environmental volume signal b
2', the rest may be inferred.
Signal processing unit 14 is electrically connected the first volume detecting unit 10 and the second volume detecting unit 12.Signal processing unit 14 is in order to continual analysis and comparer signal volume a
n' and environmental volume signal b
n', such as can by device signal volume a
n' in environmental volume signal b
n' filtering, to produce (acquisition) voltage signal c
n.In like manner, the voltage signal c of previous generation
nbe called voltage signal c
1, the voltage signal c of follow-up new generation
nbe called voltage signal c
2.The voltage signal c of another new generation again
nthen be called voltage signal c
3, the rest may be inferred.
In an embodiment of the present invention, signal processing unit 14 has signal analysis unit 140 and a signal conversion unit 142.Signal conversion unit 142 is electrically connected signal analysis unit 140.Signal analysis unit 140 is such as the analytical equipment that one kind of or multiple electronic component that a microprocessor or has a differentiator, a subtractor, an amplifier, a rectifier and a wave filter assembles.Signal conversion unit 142 is such as commercially available signal adapter, and it can convert volume signal to direct current quasi-position signal, claims voltage signal c at this
n.At the present embodiment, signal conversion unit 142 is by device signal volume a
n' filtering environmental volume signal b
n' after the pure computer-internal volume signal a that obtains
n'-b
n' convert voltage signal c to
n.
Control unit 16 is such as that a microprocessor (MCU) or controls wafer set (PCH), and it is electrically connected at least one fan 20 in signal processing unit 14 and computer 200 or fan 22.And in one embodiment of the invention, control unit 16 synchronously can be electrically connected fan 20 in computer 200 and fan 22 (empty frame table shows).
More specifically, control unit 16 is electrically connected at least one electronic equipment 21 in computer 200, graphicly only indicates wherein one group, but also can connect and organize electronic equipment more.Electronic equipment 21 is such as a central processing unit (CPU) (CPU), a graphic process unit (GPU) or a host board.Electronic equipment 21 is electrically connected corresponding fan 22, and such as electronic equipment 21 is central processing unit (CPU) (CPU), then fan 22 is cpu fans, and controls its rotating speed by the control signal of electronic equipment 21.Whereby, control unit 16 is electrically connected fan 22 indirectly.Control unit 16 also controls the running of electronic equipment 21, indirectly to control the rotating speed of fan 22.Further, control unit 16 also directly can be electrically connected at least one fan 20 in computer 200, graphicly only indicates one group, but also can configure many group fans 20.Fan 20 is such as system fan, a central processing unit fan or a display card fan.Whereby, control unit 16 can directly be electrically connected fan 20, and controls the rotating speed of fan 20.
Fan sound-volume control system 100 of the present invention is not limited to above-described embodiment, and in other embodiments, control unit 16 also only can directly be electrically connected fan 20.In another embodiment, control unit 16 is only electrically connected fan 22 indirectly.
Control unit 16 has a judge module 160.Judge module 160 is in order to judge whether voltage signal cn is greater than a preset voltage value d.Preset voltage value d is that user sets volume decibel value by computer 200 in advance, then volume decibel value is processed the described preset voltage value d producing correspondence by computer 200.
If judging unit 160 judges voltage signal c
nbe greater than a preset voltage value d, namely represent the volume that computer 200 inside produces and be greater than default volume decibel value, then control unit 16 controls the rotating speed of fan 20 or fan 22, to reduce the volume of fan 20 or fan 22 in order to control interface such as computer firmware, software or a hardware mode by one.The mode controlling the rotating speed of fan 22 or fan 20 such as directly can close fan 20 or fan 22, or such as according to the default rotation speed of the fan value e as shown in Fig. 7 B and Fig. 1, when electronic equipment 21 operates safety without anxiety, control or reduce the rotating speed of fan 20 or fan 22.
Although in this is graphic, fan sound-volume control system 100 circle is located at outside computer 200, but graphic is element in element in order to distinguish fan sound-volume control system 100 of the present invention and known computer 200, do not represent its specifically structure must be positioned at computer 200 as outside main case of computer.Such as in the multiple different embodiment of the present invention, fan sound-volume control system 100 can be selected to be located in the mainframe box of computer 200, also can the outer or part of the mainframe box of seletion calculation machine 200 be arranged in computer 200 mainframe box.Such as in a fan sound-volume control system 100, be provided with multiple first volume detecting unit 10, and each volume detecting unit 10 can be put in corresponding computer 200 mainframe box by line individually, to detect and to obtain the computer-internal volume a of each computer 200
nand device signal volume a
n'.So, fan sound-volume control system 100 can time detect and control the fan 20 of multiple computer 200 or the rotating speed of fan 22.
Based on said fans sound-volume control system and possible change aspect thereof.Below propose the embodiment of several fan volume automatic control method of the present invention, cooperatively interact by the control interface with computer 200 such as software, firmware or computer hardware, to be loaded into aforementioned fan sound-volume control system 100 or its possible change aspect.
Please synchronously with reference to Fig. 1, Fig. 2 and Fig. 3, Fig. 2 is the fan volume automatic control method flow chart of first embodiment of the invention.After computer 200 obtains an instruction unlatching, fan 20 and/or fan 22 can according to rotation speed of the fan basic settings value runnings as shown in Figure 7 A.Now, if computer 200 obtains the instruction of a reduction noise function, fan volume automatic control method of the present invention can automatically be carried out.
First, as step S10, device volume detecting step, the first volume detecting unit 10 of fan sound-volume control system 100 continues at least one computer-internal volume a of detecting computer 200 inside
n, such as computer-internal volume a
1, computer-internal volume a
2and continue to produce (acquisition) at least one device signal volume a
n', such as device signal volume a
1', device signal volume a
2'.
Then, as environmental volume detecting step S12 (also synchronously can carry out prior to step S10 or with step S10 in other embodiments).Second volume detecting unit 12 of fan sound-volume control system 100 continues at least one computer exterior volume b outside detecting computer 200
n, such as computer exterior volume b
1, computer exterior volume b
2, and continue generation (acquisition) environmental volume signal b
n', such as environmental volume signal b
1, environmental volume signal b
2.
Then, as analyzed switch process S14.The signal analysis unit 140 of the signal processing unit 14 of fan sound-volume control system 100 is by continual analysis and comparer signal volume a
n' and environmental volume signal b
n', and filtering device signal volume a
n' in environmental volume signal b
n', to obtain pure computer-internal volume signal a
n'-b
n'.Then, the signal conversion unit 142 of signal processing unit 14 is by device signal volume a
n' filtering environmental volume signal b
n' after pure computer-internal volume signal a
n'-b
n', convert (acquisition) at least one voltage signal c to
n.In the present embodiment, the signal analysis unit 140 look-ahead analysis device signal volume a of signal processing unit 14
1' and environmental volume signal b
1', then change acquisition one voltage signal c further by the signal conversion unit 142 of signal processing unit 14
1.
Then, as the first determining step S16a.The judge module 160 of the control unit 16 of fan sound-volume control system 100 judges described at least one voltage signal c in advance
nin a voltage signal c
1whether be greater than the preset voltage value d in control unit 160.Preset voltage value d first receives an external signal value by computer, then by external signal value described in computer disposal, and then corresponding generation preset voltage value d.External signal value is that user is in advance by a volume decibel value of computer input.
If the first determining step S16a is judged as YES, in other words, namely when judge module 160 judges voltage signal c
1when being greater than preset voltage value d, then enter rate-determining steps S18, control unit 16 is by the control interface of computer 200, and at least one fan 20 of the modes such as such as software, firmware or hardware directly or indirectly in computer for controlling 200 and/or fan 22, to reduce the volume of fan 20 and/or 22.
More specifically, please refer to Fig. 3, in one embodiment, rate-determining steps S18 coordinates the fan sound-volume control system 100 of the first embodiment, can include a fan indirect rate-determining steps S18a and the direct rate-determining steps S18b of a fan.
Fan indirect rate-determining steps S18a is the running of at least one electronic equipment 21 in control unit 16 computer for controlling 200, indirectly to control the rotating speed of fan 22.The mode of the running of at least one electronic equipment 21 in control unit 16 computer for controlling 200, such as but do not limit system be to electronic equipment 21 1 frequency reducing, a reduction of speed and one start thermal center stream mechanism (Thermal-Throttle) arbitrary or its compound mode, lower the temperature in order to make electronic equipment 21, and then the fan 22 corresponding to it also can reduce rotating speed indirectly, reach the effect that indirectly fan volume controls.
The direct rate-determining steps S18b of fan is the rotating speed that control unit 16 directly controls fan 20, such as, be direct control system stopping fan rotation or reduction rotating speed.Also the rotating speed of fan 22 directly can be controlled in another embodiment.The control mode of the rotating speed of fan 20 or fan 22, such as but do not limit be according to such as corresponding to 7B figure preset rotation speed of the fan value e control.In different embodiments, fan indirect rate-determining steps S18a and the direct rate-determining steps S18b of fan can synchronously perform, and also can perform front and back in other embodiments.In addition, in other embodiments, one of them rate-determining steps of fan indirect rate-determining steps S18a and the direct rate-determining steps S18b of fan can also only be performed.
In front first determining step S16a, if the first determining step S16a is judged as NO.In other words, when judge module 160 judges voltage signal c
1non-when being greater than preset voltage value d, then enter the first repetition step.Namely first repetition step is again enter to analyze switch process S14, and then repeats the step of the first determining step S16a further.Whereby, at least one voltage signal c produced through step S10, S12, S14 is judged
nin the new voltage signal c produced
2whether be greater than preset voltage value d, continue to detect and the effect controlled to reach.
Based on above-mentioned, user only needs to preset a volume decibel value by computer 200, and then user is again by fan volume automatic control method of the present invention and fan sound-volume control system 100, continues the computer-internal volume a of detecting computer 200
n, computer exterior volume b
nand control fan 20 or fan 22 rotating speed further.By this, the pure computer-internal volume signal b in computer 200 can be made
n'-a
n' maintain (its corresponding volume decibel value preset) within described preset voltage value d, reach volume inside and outside detecting computer, and control rotation speed of the fan, and then reduce the effect of fan volume.
The invention is not restricted to above-described embodiment, please synchronous reference Fig. 1 and Fig. 4, Fig. 4 are the fan volume automatic control method flow charts of second embodiment of the invention again.Same steps symbol S10, S12, S14, S16a, S18a and S18b of the fan volume automatic control method of the second embodiment and the first embodiment represent same steps content, do not repeat them here.Below only illustrate for discrepant part.In the fan volume automatic control method of the second embodiment, when execution first determining step S16a, if judge module 160 judges voltage signal c
1when being greater than preset voltage value d, then performing the indirect rate-determining steps S18a of fan in rate-determining steps S18, and then control the running of electronic equipment 21, indirectly control rotating speed and/or the work volume of fan 22.If judge module 160 judges voltage signal c
1non-when being greater than preset voltage value d, then enter the first repetition step, and then repeat further to enter the first determining step S16a, volume inside and outside detecting computer is continued and the effect controlling fan 20 or fan 22 rotating speed to reach, this part please refer to the fan volume automatic control method of the first embodiment, is not repeated herein.
Difference is, after the indirect rate-determining steps S18a of execution fan, then enters the second determining step S16b.More specifically, after the indirect rate-determining steps S18a of fan such as execution electronic equipment 21 frequency reducing or reduction of speed etc., because device volume detecting step S10 and environmental volume detecting step S12 can continue to detect and produce a device signal volume a
3' and an environmental volume signal b
3', and continue execution analysis switch process S14 and then new generation one voltage signal c
3.Therefore, enter the second determining step S16b, namely again judge the new voltage signal c produced by the judge module 160 of control unit 16
3whether be greater than the preset voltage value d in control unit 16.
When judge module 160 judges the new voltage signal c produced
3still be greater than the preset voltage value d in control unit 16, then the pure computer-internal volume in expression computer 200 is still greater than the volume decibel value that user presets.In other words, represent that in computer 200, noise volume source not can, by controlling the running of electronic equipment 21, can control to get rid of or reduce.Therefore, enter just like the direct rate-determining steps S18b of the fan in rate-determining steps S18, control unit 16 directly controls the rotating speed of fan 20 such as system fan, display card fan or host card fan, directly to reduce the volume of fan 20.Certainly in another embodiment, the rotating speed of fan 22 can also directly be controlled.
In front the second described determining step S16b, if the new voltage signal c produced
3the non-preset voltage value d be greater than in control unit 16, then the pure computer-internal volume of expression computer 200 is less than the volume decibel value that user presets.In other words, the noise source namely in computer is got rid of by control.Therefore, the second repetition step is entered.Namely second repetition step is again enter to analyze switch process S14, and then repeats further to enter the first determining step S16a.Whereby, reach and continue volume inside and outside detecting computer 200 and control the effect of fan 20 or fan 22.
Please continue the fan volume automatic control method flow chart that reference Fig. 1 and Fig. 5, Fig. 5 are third embodiment of the invention.The difference of the fan volume automatic control method of the 3rd embodiment and the second embodiment is also to comprise a stopping step S22.Step S22 is stopped to be synchronized with the direct rate-determining steps S18b of fan.In still another embodiment of the process, after stopping step S22 also can be connected in the direct rate-determining steps S18b of fan.Stop step S22 to be that control unit 16 stops the electronic equipment 21 in computer for controlling 200 to operate, namely stop the indirect rate-determining steps S18a of fan.Such as that control unit 16 stops or closing the indirect rate-determining steps S18a of fan to electronic equipment 21 frequency reducing, reduction of speed etc.Effect of step S22 is stopped to be: owing to perform the indirect rate-determining steps S18a of the fan such as frequency reducing or reduction of speed at electronic equipment 21 after, when pure computer-internal volume is still greater than volume decibel value, represent that the source of noise cannot be improved because controlling the running of electronic equipment 21.Now, in order to avoid electronic equipment 21 usefulness is too poor, control unit 16 stops the running (the indirect rate-determining steps S18a of fan) controlling electronic equipment 21.Whereby, can reach and reduce fan 20, the rotating speed of fan 22 and volume, and reach equinoctial point between the running controlling electronic equipment 21.Under the running not disturbing electronic equipment 21, find out controllable fan noise volume source and controlled.
Please continue the fan volume automatic control method flow chart that reference Fig. 1 and Fig. 6, Fig. 6 are fourth embodiment of the invention again.The fan volume automatic control method difference of the 4th embodiment and the 3rd embodiment is: the 4th embodiment also comprises a stopping step S24, stop step S24 be connected in the second determining step S16b after.More specifically, when control unit 16 judges voltage signal c
3non-when being greater than preset voltage value d, first perform after stopping step S24, then perform the second repetition step.Second repetition step refers to again to enter analyzes switch process S14, and then repeats further to enter the first determining step S16a.Step S24 is stopped to be that control unit 160 stops or the running (namely stopping the indirect rate-determining steps S18a of fan) of electronic equipment 21 in closing control computer 200.Such as control unit 160 stops or closing the indirect rate-determining steps S18a of fan to computer installation 21 frequency reducing or reduction of speed etc.Effect of step S24 is stopped to be: when control unit 16 judges voltage signal c
3non-when being greater than preset voltage value d, represent that pure computer-internal volume in computer 200 is lower than the volume decibel value preset.In other words, pure computer-internal volume is down within endurable scope effectively.Now, in order to avoid the usefulness of electronic equipment 21 is too poor, therefore no longer need to perform the indirect rate-determining steps S18a of the fan such as frequency reducing or reduction of speed.Therefore, before execution second repeats step, perform in advance and stop step S24, the indirect rate-determining steps S18a of fan of the frequency reducing of stopping control electronic equipment 21 or reduction of speed etc.Subsequently, the second repetition step is carried out to enter the first determining step S16a further.
After again entering the first determining step S16a, if the judge module 160 of control unit 16 judges voltage signal c
nin a voltage signal c of another new generation again
4time again higher than preset voltage value d, then again will start the indirect rate-determining steps S18a of fan and subsequent step.Whereby, between the effective operation of electronic equipment 21, the rotating speed reducing fan 20 or fan 22, volume, reach the effect that balance controls.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (13)
1. a fan sound-volume control system, be applicable at least one computer, described fan sound-volume control system comprises: at least one first volume detecting unit, each first volume detecting unit is arranged in corresponding described computer, in order to detect at least one computer-internal volume, to obtain at least one device signal volume, it is characterized in that, also comprise:
At least one second volume detecting unit, is arranged at outside described computer, in order to detect at least one computer exterior volume, to obtain at least one environmental volume signal;
One signal processing unit, be electrically connected described first volume detecting unit and described second volume detecting unit, described signal processing unit is in order to analyze described device signal volume and described environmental volume signal, and by the described environmental volume target signal filter in described device signal volume, to obtain a voltage signal; And
One control unit, be electrically connected at least one fan in described signal processing unit and described computer, described control unit has a judge module, in order to judge whether described voltage signal is greater than a preset voltage value, if, then described control unit is in order to control the rotating speed of described fan, to reduce the volume of described fan.
2. fan sound-volume control system according to claim 1, it is characterized in that, described control unit is electrically connected at least one electronic equipment in described computer, described electronic equipment is electrically connected described fan, and then described control unit is indirectly electrically connected described fan and indirectly controls the rotating speed of described fan.
3. fan sound-volume control system according to claim 1, it is characterized in that, described control unit is directly electrically connected the described fan in described computer, the described judge module of described control unit is in order to judge whether described voltage signal is greater than a preset voltage value, if, then described control unit directly controls the rotating speed of described fan, to reduce the volume of described fan.
4. fan sound-volume control system according to claim 1, is characterized in that, described signal processing unit has a signal analysis unit and a signal conversion unit.
5. apply the fan volume automatic control method of fan sound-volume control system for one kind, be used for a fan sound-volume control system by cover to perform, comprise the following steps: detect at least one computer-internal volume by one first volume detecting unit of described fan sound-volume control system, and obtain at least one device signal volume, it is characterized in that, also comprise:
Detect at least one computer exterior volume by one second volume detecting unit of described fan sound-volume control system, and obtain at least one environmental volume signal;
Analyze described device signal volume and described environmental volume signal by a signal processing unit of described fan sound-volume control system, the described environmental volume signal in device signal volume described in filtering, to obtain at least one voltage signal;
Whether the voltage signal judged in described at least one voltage signal by a judge module of a control unit of described fan sound-volume control system is in advance greater than the preset voltage value in described control unit;
When described judge module judges that described voltage signal is greater than described preset voltage value, then controlled at least one fan in described computer by described control unit, to reduce the volume of described at least one fan; And
When described judge module judges that described voltage signal is non-and is greater than described preset voltage value, then repeat further to enter and describedly judge whether the voltage signal in described at least one voltage signal is greater than the step of the described preset voltage value in described control unit by the described judge module of the described control unit of described fan sound-volume control system in advance.
6. according to the fan volume automatic control method of application fan sound-volume control system according to claim 5, it is characterized in that, the step of the described at least one fan controlled in described computer by described control unit is comprised:
The running of at least one electronic equipment in described computer is controlled, indirectly to control rotating speed and the volume of described fan by described control unit.
7. the fan volume automatic control method of application fan sound-volume control system according to claim 6, it is characterized in that, the described step being controlled the running of at least one electronic equipment in described computer by described control unit is carried out a frequency reducing to described electronic equipment, a reduction of speed, starts thermal center stream mechanism or frequency reducing, reduction of speed and starts the combination of thermal center stream mechanism.
8. the fan volume automatic control method of application fan sound-volume control system according to claim 5, it is characterized in that, the step of the described at least one fan controlled in described computer by described control unit is comprised: the rotating speed directly being controlled described fan or another fan by described control unit.
9. the fan volume automatic control method of application fan sound-volume control system according to claim 8, is characterized in that, the rotating speed of described fan or another fan described is preset rotation speed of the fan value according to one and controlled.
10. the fan volume automatic control method of application fan sound-volume control system according to claim 8, it is characterized in that, the described running being controlled at least one electronic equipment by described control unit, is synchronously performed with the step of the rotating speed and volume that indirectly control described fan and the described step directly being controlled the rotating speed of described fan or another fan described by described control unit.
The fan volume automatic control method of 11. application fan sound-volume control systems according to claim 6, in the described running being controlled the described electronic equipment in described computer by described control unit, after the step of the rotating speed and volume that indirectly control described fan, also comprise:
Again judge whether the new voltage signal produced is greater than the described preset voltage value in described control unit by the described judge module of described control unit;
When described judge module judges that the new described voltage signal produced is greater than described preset voltage value, then described control unit directly controls the rotating speed of described at least one fan, to reduce the volume of described at least one fan; And
When described judge module judges that the new described voltage signal produced is non-and is greater than described preset voltage value, then repeat further to enter and describedly judge whether the voltage signal in described at least one voltage signal is greater than the step of the described preset voltage value in described control unit by the described judge module of the described control unit of described fan sound-volume control system in advance.
The fan volume automatic control method of 12. application fan sound-volume control systems according to claim 11, also comprises:
Stopped the step of the running of the described electronic equipment controlled in described computer by described control unit, it is continued or is synchronized with the described step directly being controlled the rotating speed of described at least one fan by described control unit.
The fan volume automatic control method of 13. application fan sound-volume control systems according to claim 11, also comprises:
The step of the described electronic equipment running controlled in described computer main is stopped by described control unit, after described judge module again by described control unit described in being connected in judges whether the new described voltage signal produced is greater than the described preset voltage value step in described control unit, and when described judge module judges that the new described voltage signal produced is non-and is greater than described preset voltage value, first perform the described step being stopped the described electronic equipment running controlled in described computer main by described control unit, repeat the described leading described judge module by the described control unit of described fan sound-volume control system more further to judge whether the voltage signal in described at least one voltage signal is greater than the step of the described preset voltage value in described control unit.
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| CN201410399148.7A CN104154021B (en) | 2014-08-14 | 2014-08-14 | Fan sound-volume control system and apply the fan volume automatic control method of described control system |
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| CN109362001A (en) * | 2018-09-26 | 2019-02-19 | 努比亚技术有限公司 | A kind of terminal noise control method, terminal and computer readable storage medium |
| CN109538538A (en) * | 2018-11-28 | 2019-03-29 | 努比亚技术有限公司 | A kind of processing method of fan noise, mobile terminal and storage medium |
| CN110848164B (en) * | 2019-09-29 | 2021-03-09 | 深圳市火乐科技发展有限公司 | Rotating speed adjusting method and related product thereof |
| CN112943663B (en) * | 2019-11-26 | 2023-02-28 | 佛山市云米电器科技有限公司 | Fan control method, system, fan and computer readable storage medium |
| TWI830243B (en) * | 2022-05-31 | 2024-01-21 | 宏達國際電子股份有限公司 | Display device, control method and non-transitory computer readable storage medium |
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