CN101832287A - Method and device for speed regulation of fan and communication system - Google Patents
Method and device for speed regulation of fan and communication system Download PDFInfo
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- CN101832287A CN101832287A CN200910127035A CN200910127035A CN101832287A CN 101832287 A CN101832287 A CN 101832287A CN 200910127035 A CN200910127035 A CN 200910127035A CN 200910127035 A CN200910127035 A CN 200910127035A CN 101832287 A CN101832287 A CN 101832287A
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Abstract
The embodiment of the invention discloses a method and a device for speed regulation of a fan and a communication system. In the technical scheme of the embodiment of the invention, when the speed regulation of the fan is carried out, the temperature of the system is defected according to a preset time period; and when the detected temperature exceeds a preset temperature interval, the rotating speed of the fan is regulated step by step, and thus the fan can maintain relatively constant rotating speed in the each process of regulating the fan step by step till the fan is operated in the set temperature interval, therefore, the reliability of the fan can be improved.
Description
Technical field
The present invention relates to the heat dissipation technology field, be specifically related to a kind of method, device and communications system of fan speed-regulating.
Background technique
Nowadays, in most systems (for example, computer, communications equipment etc.) fan that is used for radiating and cooling is installed all, reduces system temperature, guarantee the proper functioning of system with appropriateness.
Operated by rotary motion is useful on the Temperature Feedback device of real-time feedback system temperature in the system, and after system worked on power, the reponse system temperature that the Temperature Feedback device can be real-time, system were adjusted the rotating speed of fan according to the system temperature of feedback.
At present, when fan is carried out speed governing, normally according to the linear functional relation of rotation speed of the fan and system temperature, fan is carried out speed governing.For example, the fan maximum speed of certain optical transmission equipment is 3600 rev/mins, and the function relation of its rotation speed of the fan and system temperature can be as shown in Figure 1, wherein, X-axis is represented system temperature, and Y-axis is represented rotation speed of the fan, and its function relation is: Y=153*X-6345 (45 ℃＜=X＜=65 ℃).By above-mentioned functional relation as can be known, in the time of X=45 ℃, Y=540 rev/min; In the time of X=50 ℃, Y=1305 rev/min; In the time of X=65 ℃, Y=3600 rev/min, system temperature and rotation speed of the fan are linear corresponding, bring up to the fan maximum speed up to the rotating speed that makes described fan, promptly 3600 rev/mins.
As seen from the above, adjust in the rotating speed process of fan in linearity, the rotating speed of fan will be linear according to system temperature to be adjusted, and is difficult to reach the rotating speed of fan and the balance and stability of relevant temperature, like this, may cause the reliability of fan to reduce.
Summary of the invention
The embodiment of the invention provides a kind of method, device and communications system of fan speed-regulating, can make fan in the temperature range of setting with constant relatively rotation speed operation, thereby can improve the reliability of fan.
The embodiment of the invention provides a kind of method of fan speed-regulating, comprising: according to the time cycle of setting, the temperature of detection system; Determine that the temperature of described system exceeds the temperature range of setting, the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
The embodiment of the invention also provides a kind of fan speed adjusting device, comprising: testing module is used for according to the time cycle of setting, the temperature of detection system; Judge module is used for the temperature with the system of described testing module detection, compares with the temperature range of setting, and determines that the temperature of described system exceeds the temperature range of described setting; Speed adjusting module is used for when the temperature that described judge module is determined described system exceeds the temperature range of described setting, and the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
The embodiment of the invention also provides a kind of communications system, described communications system is provided with the fan and the fan speed adjusting device of variable-speed, wherein, described fan speed adjusting device is used for according to the time cycle of setting, the temperature of detection system, the temperature of described system and the temperature range of setting are compared, determine that the temperature of described system exceeds the temperature range of described setting, the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
As can be seen from the previous technical solutions, according to the time cycle of setting, the temperature of detection system, when the temperature that detects exceeds the temperature range of setting, the rotating speed of ladder adjustment fan, like this, in the process of each ladder adjustment fan, fan can keep a more constant rotating speed, up to making fan work in the temperature range of setting, thereby can improve the reliability of fan.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention and technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment and the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of system temperature that provides of prior art and the contrast schematic representation of rotation speed of the fan;
Fig. 2 is the method flow schematic representation of a kind of fan speed-regulating of providing of the embodiment of the invention one;
Fig. 3 is the method flow schematic representation of a kind of fan speed-regulating of providing of the embodiment of the invention two;
Fig. 4 is the contrast schematic representation of the embodiment of the invention two a kind of time, temperature and the rotation speed of the fan that provide;
Fig. 5 is the contrast schematic representation of the embodiment of the invention two another kind of time, temperature and the rotation speed of the fan that provide;
Fig. 6 is a kind of fan speed adjusting device schematic representation that the embodiment of the invention three provides;
Fig. 7 is a kind of communications system schematic representation that the embodiment of the invention four provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who is obtained under the creative work prerequisite.
In the embodiment of the invention, can preset upper limiting temperature and the lower limit temperature of adjusting rotation speed of the fan in system, default upper limiting temperature and lower limit temperature form the interval of preset temperature.When system temperature is higher than upper limiting temperature, ladder raising rotation speed of the fan; When system temperature is lower than lower limit temperature, ladder reduction rotation speed of the fan, like this, in the process of each ladder adjustment fan, fan can keep a constant rotating speed, up to the temperature range that fan work is being set, fan keeps constant rotating speed, can improve the reliability of fan.
Embodiment one,
Referring to Fig. 2, Fig. 2 is the method flow schematic representation of a kind of fan speed-regulating of providing of the embodiment of the invention one.The method of this fan speed-regulating comprises:
Step 210, according to the time cycle of setting, the temperature of detection system;
For instance, system can be provided with the Temperature Feedback device, by the periodic Current Temperatures of detection system of this Temperature Feedback device.
Step 202, determine that the temperature of this system exceeds the temperature range of setting, the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes system.
Wherein, the rotating speed of ladder adjustment fan can be that with fixing or variable stepping amplitude, the rotating speed of adjustment fan progressively, the rotation speed of the fan before adjusted rotation speed of the fan and the adjustment present cascade and distribute.
For example, can according to the maximum speed of fan 5% as a stepping amplitude, adjust the rotating speed of fan, promptly, determine the upper limiting temperature of the temperature of system, and the rotating speed of fan is less than the maximum speed of fan more than or equal to the temperature range of this setting, the rotating speed of fan is adjusted as the stepping amplitude with 5% of fan maximum speed at every turn, be positioned at the temperature range of setting up to the temperature that makes system.Be understandable that, adjust the stepping amplitude of rotation speed of the fan at every turn, can set according to the temperature of different system, as being 10% of fan maximum speed.Certainly, the rotating speed of adjusting fan also can be according to the temperature of system and the rotating speed of fan, set the stepping amplitude, as: increased new business in system, caused the temperature rising of system too fast, the rotating speed of the stepping amplitude adjustment fan with 5% is difficult to satisfy the requirement of system radiating, at this moment, the stepping amplitude of adjusting fan can be risen to 15%, fan is turned round with higher rotation speed, thereby satisfy the heat radiation requirement of system.
As can be seen from the previous technical solutions, according to the time cycle of setting, the temperature of detection system, when the temperature that detects exceeds the temperature range of setting, the rotating speed of ladder adjustment fan, like this, in the process of each ladder adjustment fan, fan can keep a more constant rotating speed, up to making fan work in the temperature range of setting, thereby can improve the reliability of fan.
Embodiment two,
Referring to Fig. 3, be the method flow diagram of a kind of fan speed-regulating of providing of the embodiment of the invention two.The method of this a kind of fan speed-regulating can comprise:
For instance, system can be provided with the Temperature Feedback device, by the periodic Current Temperatures of detection system (but following usefulness T1 represents Current Temperatures) of this Temperature Feedback device.The time cycle of the Current Temperatures of detection system (also can be called: temperature detection cycle, perhaps speed governing cycle) can according to circumstances specifically be set, and for example, can be set at for 20 seconds, promptly detects the primary system Current Temperatures every 20 seconds.Certainly, the temperature detection cycle also can be to change flexibly, and for example, when system temperature was low, the temperature detection cycle can be provided with relatively grew (for example, 60 seconds); When system temperature was higher, what the speed governing cycle can be provided with relatively lacked (for example, 10 seconds).
Whether system's Current Temperatures that step 302, judgement detect is more than or equal to default upper limiting temperature;
Wherein, the value of upper limiting temperature and lower limit temperature can be based on concrete the determining of the suitable operating temperature range of systematic comparison.For example, suitable operating temperature range is 55 ℃～61 ℃ to suppose certain systematic comparison, and then the upper limiting temperature of fan speed-regulating can be decided to be 61 ℃; The lower limit temperature of fan speed-regulating can be decided to be 55 ℃.
When judging system's Current Temperatures more than or equal to upper limiting temperature, the rotating speed of ladder raising fan then like this can the acceleration system radiating and cooling; When the system Current Temperatures of judging is less than or equal to lower limit temperature, the rotating speed of ladder reduction fan then is with conserve energy.
Upper limiting temperature (following represent) and lower limit temperature (following all A represent) with B can basis different situations set flexibly.Wherein, the span of the difference of upper limiting temperature and lower limit temperature (following available C represents) can be: 3 ℃～10 ℃.
If judge system's Current Temperatures more than or equal to upper limiting temperature, and the current rotating speed of fan then enters step 303 less than the maximum speed of fan; If judging system's Current Temperatures is less than or equal to upper limiting temperature, then enter step 304.
Wherein, above-mentioned N can be called the stepping amplitude that rotation speed of the fan is adjusted, and the value of N can be preset, and as being 50 rev/mins, also can be 100 rev/mins.Also can be system temperature, and/or the difference of current rotating speed of fan and fan maximum speed etc. be calculated the value that obtains for parameter to obtain.
Further, the value of N can be: 5%～15% of fan maximum speed.In the current speed governing cycle, make fan with the rotation speed operation after raising speed, in the current speed governing cycle, fan can keep a constant rotation speed operation like this.
Whether system's Current Temperatures that step 304, judgement detect is less than or equal to default lower limit temperature;
Be understandable that step 304 can be carried out prior to step 302, perhaps carries out after step 302.
Wherein, above-mentioned M can be called the stepping amplitude that rotation speed of the fan is adjusted, and the value of M can be preset, and also can be the system temperature to obtain, and/or the difference of current rotating speed of fan and fan maximum speed etc. is calculated the value that obtains for parameter.
Further, M is less than the current rotating speed of fan, and when allowing in the amplitude modulation space, the span of M can be: 5%～15% of fan maximum speed.In the current speed governing cycle, the rotation speed operation behind the maintenance fan reduction of speed, like this, in the current speed governing cycle, fan keeps a constant rotation speed operation.
Be understandable that, with the rotating speed of fan improve N rev/min reduce the value of M rev/min N and M with rotating speed with fan can be consistent, as with 50 rev/mins of the rotating speed raisings of fan.The system Current Temperatures of judging is less than or equal to lower limit temperature, the rotating speed of fan can be reduced by 50 rev/mins.The Current Temperatures of judging system can improve 50 rev/mins with the rotating speed of fan more than or equal to upper limiting temperature.
According to the time cycle of setting (for example, 10 seconds), periodically carry out above-mentioned steps, to guarantee real-time control, better control system temperature to rotation speed of the fan.The periodic number of times of carrying out above-mentioned steps is at least twice, or more than.
Below by concrete application examples, the further detailed technological scheme of introducing present embodiment.
For example, the fan maximum speed (following represent with F0) of supposing certain system is 3600 rev/mins, its default upper limiting temperature B=61 ℃, lower limit temperature A=55 ℃, the temperature detection cycle is 10 seconds, the stepping amplitude N of rotation speed of the fan adjustment is defined as 10% of fan maximum speed F0, promptly N=10%*F0=360 rev/min.
See also Fig. 4, suppose current point in time between 20s～30s, the current rotating speed of fan (following represent with F1) is 50% of fan maximum speed F0, promptly F1=50%*F0=1800 rev/min, in the one-period of 20s～30s, fan keeps constant rotating speed with 1800 rev/mins.
At this time point of 30s, be that current temperature detection time point 30s is a time cycle apart from a preceding temperature detection time point 20s, the detected Current Temperatures T1=71 of system ℃, find by relatively judging the back: T1＞B, therefore the current rotating speed with fan improves N rev/min, and the rotating speed of fan is increased to 1800+N=2160 rev/min.And before detection system Current Temperatures next time, just in the current speed governing cycle, keep fan with 2160 rev/mins rotation speed operation always.
At this time point of 40s, promptly current temperature detection time point 40s is a time cycle apart from a preceding temperature detection time point 30s, detection system Current Temperatures once more, and judge that whether the detection system Current Temperatures is more than or equal to upper limiting temperature B.Suppose once more detection system Current Temperatures T1=60 ℃, A＜T1＜B, at this moment, 60 ℃ between upper limiting temperature and lower limit temperature, show the speed governing success, before detection system Current Temperatures next time, the 2160 rev/mins of runnings of current rotating speed that always keep fan.
Need to prove that above-mentioned is that example is set forth with Fig. 4.Certainly, adjusting rotation speed of the fan, the temperature of system is positioned at before the temperature range of setting, the temperature of periodic detection system repeatedly up to by adjusting the rotating speed of fan, makes the temperature of system be positioned at the temperature range of setting.
For example: default upper limiting temperature B=61 ℃, lower limit temperature A=55 ℃, the temperature detection cycle is 10 seconds, current point in time is between 10s～20s, the current rotating speed of fan (following represent with F1) is 40% of fan maximum speed F0, and promptly F1=40%*F0=1440 rev/min, stepping amplitude N is 360 rev/mins, then in the one-period of 10s～20s, fan keeps constant rotating speed with 1440 rev/mins;
At this time point of 20s, the detected Current Temperatures T1=71 of system ℃, find by relatively judging the back: T1＞B, therefore the current rotating speed with fan improves N rev/min, and the rotating speed of fan is increased to 1440+N=1800 rev/min.And before detection system Current Temperatures next time, just in the current speed governing cycle, keep fan with 1800 rev/mins rotation speed operation always;
Suppose once more detection system Current Temperatures T1=65 ℃, T1＞B then improves N rev/min with the rotating speed of fan, the rotation speed of the fan F1=1800+N=2160 after the speed governing rev/min once more, and before detection system Current Temperatures next time, keep fan with 2160 rev/mins rotation speed operation always.
By that analogy, detection system Current Temperatures once more after 10 seconds, and judge that whether the system's Current Temperatures that detects is more than or equal to upper limiting temperature B.Suppose once more detection system Current Temperatures T1=60 ℃, A＜T1＜B shows the speed governing success, before detection system Current Temperatures next time, and the 2160 rev/mins of runnings of current rotating speed that always keep fan.
Being that example is set forth with system's Current Temperatures greater than upper limiting temperature above, is that example is set forth with system's Current Temperatures less than lower limit temperature below:
Default upper limiting temperature B=61 ℃, lower limit temperature A=55 ℃, the temperature detection cycle is 10 seconds, and the stepping amplitude M of rotation speed of the fan adjustment is defined as 10% of fan maximum speed F0, promptly M=10%*F0=360 rev/min.
See also Fig. 5, suppose that current point in time is between 20s～30s, the current rotating speed of fan is 40% of fan maximum speed F0, it is F1=40%*F0=1440 rev/min, at this time point of 30s, be that current temperature detection time point 30s is a time cycle apart from a preceding temperature detection time point 20s, the detected Current Temperatures T1=45 of system ℃, find by relatively judging the back: T1＜A, so the current rotating speed of fan is reduced M rev/min, and the speed drop of fan is low to moderate 1440-M=1080 rev/min.And before detection system Current Temperatures next time, just in the current speed governing cycle, keep fan with 1080 rev/mins rotation speed operation always.
At this time point of 40s, the temperature of detection system once more, suppose, detected system Current Temperatures is T1=57 ℃, A＜T1＜B, at this moment, 57 ℃ between upper limiting temperature and lower limit temperature, show speed governing success, before detection system Current Temperatures next time, the 1080 rev/mins of runnings of current rotating speed that always keep fan.
In like manner, the rotating speed of above-mentioned reduction fan is to be the elaboration that example is carried out with Fig. 5.Certainly, adjusting rotation speed of the fan, the temperature of system is positioned at before the temperature range of setting, the temperature of periodic detection system repeatedly up to by adjusting the rotating speed of fan, makes the temperature of system be positioned at the temperature range of setting.
For example: suppose default upper limiting temperature B=65 ℃, lower limit temperature A=60 ℃, the temperature detection cycle is 10 seconds, and the stepping amplitude M of rotation speed of the fan adjustment is defined as 10% of fan maximum speed F0, promptly M=10%*F0=360 rev/min.Current point in time is between 10s～20s, and the current rotating speed of fan is 50% of fan maximum speed F0, and promptly F1=50%*F0=1800 rev/min, then in the one-period of 10s～20s, fan keeps constant rotating speed with 1800 rev/mins;
At this time point of 20s, the detected Current Temperatures T1=45 of system ℃, find by relatively judging the back: T1＜A, thus the current rotating speed of fan is reduced M rev/min, and the speed drop of fan is low to moderate 1800-M=1440 rev/min.And before detection system Current Temperatures next time, just in the current speed governing cycle, keep fan with 1440 rev/mins rotation speed operation always.
Detection system Current Temperatures once more after 10 seconds, and judge that whether the detection system Current Temperatures is more than or equal to lower limit temperature A.Suppose once more detection system Current Temperatures T1=51 ℃, T1＜A then reduces M rev/min with the rotating speed of fan, the rotation speed of the fan F1=1440-M=1080 after the speed governing rev/min once more, and before detection system Current Temperatures next time, keep fan with 1080 rev/mins rotation speed operation always.
By that analogy, detection system Current Temperatures once more after 10 seconds, and judge that whether the detection system Current Temperatures is more than or equal to lower limit temperature A.Suppose once more detection system Current Temperatures T1=61 ℃, A＜T1＜B shows the speed governing success, before detection system Current Temperatures next time, and the 1080 rev/mins of runnings of current rotating speed that always keep fan.
Be understandable that,, judge that the step of adjustment can effectively be controlled at system temperature default temperature range, helps improving the reliability of fan work, prolongs its working life by the above-mentioned detection of periodic execution.
Be understandable that, the stepping amplitude of each speed governing can be equate (for example, can for the fan maximum speed 10%), also can be to change flexibly, for example, when the amplitude modulation space is big, the stepping amplitude of each speed governing can be 15% of fan maximum speed, and is perhaps bigger; When the amplitude modulation space hour, the stepping amplitude of each speed governing can be 5% of fan maximum speed, and is perhaps littler.
Above-mentioned with fixing or variable stepping amplitude, the rotating speed of adjustment fan progressively, the rotation speed of the fan before adjusted rotation speed of the fan and the adjustment present cascade and distribute, and are one of modes of speed regulation of ladder adjustment rotation speed of the fan, but are not limited to this.
As can be seen, in the present embodiment, according to the time cycle of setting, the temperature of detection system, when the temperature that detects exceeds the temperature range of setting, the rotating speed of ladder adjustment fan, like this, in the process of each ladder adjustment fan, fan can keep a constant rotating speed, up to making fan work in the temperature range of setting, fan keeps constant rotating speed, can improve the reliability of fan.
Embodiment three,
Accordingly, the embodiment of the invention also provides a kind of fan speed adjusting device, and referring to Fig. 6, Fig. 6 is the device schematic representation of a kind of fan speed-regulating of providing of the embodiment of the invention three, and this fan speed adjusting device can comprise:
Testing module 610 is used for according to the time cycle of setting, the temperature of detection system.
Judge module 620 is used for the temperature with the system of testing module 610 detections, compares with the temperature range of setting, and determines that the temperature of this system exceeds the temperature range of setting.
Speed adjusting module 630 is used for when the temperature that judge module 620 is determined this system exceeds the temperature range of setting, and the rotating speed of the adjustment fan of ladder is positioned at the temperature range of setting up to the temperature that makes system.
As seen from the above, when the temperature of determining this system exceeded the temperature range of setting, the rotating speed of the adjustment fan of ladder was positioned at the temperature range of setting to speed adjusting module 630 up to the temperature that makes system according to judge module 620.Like this, in the process of each ladder adjustment fan, fan can keep a more constant rotating speed, up to making fan work in the temperature range of setting, thereby can improve the reliability of fan.
Wherein, the rotating speed of ladder adjustment fan can be that with fixing or variable stepping amplitude, the rotating speed of adjustment fan progressively, the rotation speed of the fan before adjusted rotation speed of the fan and the adjustment present cascade and distribute.
For instance, speed adjusting module 630 can be used for, the temperature of determining system at judge module 620 is more than or equal to default upper limiting temperature, and Current Temperatures point detection time is a time cycle apart from a preceding temperature detection time point, the rotating speed of the raising fan of ladder is positioned at the temperature range of setting up to the temperature that makes system.
Speed adjusting module 630 can also be used for, the temperature of determining system at judge module 620 is less than or equal to default lower limit temperature, and when Current Temperatures point detection time is a time cycle apart from a preceding temperature detection time point, the rotating speed of the reduction fan of ladder is positioned at the temperature range of setting up to the temperature that makes system.
Wherein, testing module 610 can be carried out the step 301 among the embodiment two; Judge module 620 can be carried out the step 302 and 304 among the embodiment two; Speed adjusting module 630 can be carried out the step 303 and 305 among the embodiment two.
As can be seen, in the present embodiment, according to the time cycle of setting, the temperature of detection system, when the temperature that detects exceeds the temperature range of setting, the rotating speed of ladder adjustment fan can make the rotating speed of fan keep a more constant rotating speed in the temperature range of setting like this, thereby can improve the reliability of fan.
Embodiment four,
Accordingly, the embodiment of the invention also provides a kind of communications system, and referring to Fig. 7, Fig. 7 is a kind of communications system schematic representation that the embodiment of the invention four provides.This communications system is provided with the fan 710 and the fan speed adjusting device 720 of variable-speed, and fan speed adjusting device 720 can be adjusted the rotating speed of fan 710.
Wherein, fan speed adjusting device 720, be used for according to the time cycle of setting, the temperature of detection system, the temperature of this system and the temperature range of setting are compared, determine that the temperature of this system exceeds the temperature range of setting, the rotating speed of the adjustment fan 710 of ladder is positioned at the temperature range of setting up to the temperature that makes system.
Wherein, fan speed adjusting device 720 can be with the temperature of detected system, compares with the upper limiting temperature of the temperature range of setting, and the temperature of determining this system is more than or equal to this upper limiting temperature; When Current Temperatures detection time, point was a time cycle apart from a preceding temperature detection time point, the rotating speed of the reduction fan 710 of ladder was positioned at the temperature range of setting up to the temperature that makes system.
Wherein, fan speed adjusting device 720 also can be with the temperature of detected system, compares with the lower limit temperature of the temperature range of setting, and determines that the temperature of described system is less than or equal to this lower limit temperature; When Current Temperatures detection time, point was a time cycle apart from a preceding temperature detection time point, the rotating speed of ladder reduction fan 710 was positioned at the temperature range of setting up to the temperature that makes system.
Wherein, the rotating speed of ladder adjustment fan can be that with fixing or variable stepping amplitude, the rotating speed of adjustment fan progressively, the rotation speed of the fan before adjusted rotation speed of the fan and the adjustment present cascade and distribute.
Be understandable that fan speed adjusting device 720 can be identical with embodiment's three described fan speed adjusting devices in the present embodiment, no longer repeats at this.
As can be seen, in the present embodiment, according to the time cycle of setting, the temperature of detection system, when the temperature that detects exceeds the temperature range of setting, the rotating speed of ladder adjustment fan can make the rotating speed of fan keep a more constant rotating speed in the temperature range of setting like this, thereby can improve the reliability of fan.
In the above-described embodiments, each embodiment's description is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to other embodiments' associated description.
In sum, in the technological scheme that the embodiment of the invention adopts, according to the time cycle of setting, the temperature of detection system, when the temperature that detects exceeds the temperature range of setting, the rotating speed of ladder adjustment fan can make the rotating speed of fan keep a more constant rotating speed in the temperature range of setting like this, thereby can improve the reliability of fan.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
The above only is several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the present invention and do not break away from the spirit and scope of the present invention according to application documents are disclosed.
Claims (12)
1. the method for a fan speed-regulating is characterized in that, comprising:
According to the time cycle of setting, the temperature of detection system;
Determine that the temperature of described system exceeds the temperature range of setting, the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
2. the method for fan speed-regulating according to claim 1, it is characterized in that the temperature of described definite described system exceeds the temperature range of setting, the rotating speed of the adjustment fan of ladder, be positioned at the temperature range of described setting up to the temperature that makes described system, comprise:
The temperature of determining described system is more than or equal to default upper limiting temperature, and Current Temperatures point detection time is a time cycle apart from a preceding temperature detection time point, and, the rotating speed of described fan is during less than the maximum speed of described fan, the rotating speed of the described fan of raising of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
3. the method for fan speed-regulating according to claim 1, it is characterized in that the temperature of described definite described system exceeds the temperature range of setting, the rotating speed of the adjustment fan of ladder, be positioned at the temperature range of described setting up to the temperature that makes described system, comprise:
The temperature of determining described system is less than or equal to default lower limit temperature, and Current Temperatures point detection time is a time cycle apart from a preceding temperature detection time point, the rotating speed of the described fan of reduction of ladder is positioned at the temperature range of setting up to the temperature that makes described system.
4. the method for fan speed-regulating according to claim 2 is characterized in that, the rotating speed of the described fan of raising of described ladder is:
Improve the rotating speed of described fan with the first default stepping amplitude.
5. the method for fan speed-regulating according to claim 3 is characterized in that, the rotating speed of the described fan of reduction of described ladder is:
Reduce the rotating speed of described fan with the second default stepping amplitude.
6. according to the method for each described fan speed-regulating of claim 1 to 3, it is characterized in that the span of the upper limiting temperature of the temperature range of described setting and lower limit temperature difference is 3 ℃～10 ℃.
7. a fan speed adjusting device is characterized in that, comprising:
Testing module is used for according to the time cycle of setting, the temperature of detection system;
Judge module is used for the temperature with the system of described testing module detection, compares with the temperature range of setting, and determines that the temperature of described system exceeds the temperature range of described setting;
Speed adjusting module is used for when the temperature that described judge module is determined described system exceeds the temperature range of described setting, and the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
8. fan speed adjusting device according to claim 7 is characterized in that,
Described speed adjusting module, be used for determining the upper limiting temperature of the temperature of described system more than or equal to the temperature range of described setting at described judge module, and when Current Temperatures point detection time is a time cycle apart from a preceding temperature detection time point, the rotating speed of the described fan of raising of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
9. fan speed adjusting device according to claim 7 is characterized in that,
Described speed adjusting module, be used for being less than or equal to the lower limit temperature of the temperature range of described setting in the temperature that described judge module is determined described system, and when Current Temperatures point detection time is a time cycle apart from a preceding temperature detection time point, the rotating speed of the described fan of reduction of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
10. a communications system is characterized in that, described communications system is provided with the fan and the fan speed adjusting device of variable-speed, wherein,
Described fan speed adjusting device, be used for according to the time cycle of setting, the temperature of detection system, the temperature of described system and the temperature range of setting are compared, determine that the temperature of described system exceeds the temperature range of described setting, the rotating speed of the adjustment fan of ladder is positioned at the temperature range of described setting up to the temperature that makes described system.
11. communications system according to claim 10, it is characterized in that described fan speed adjusting device is used for, with the temperature of the system of described detection, compare with the upper limiting temperature of the temperature range of described setting, the temperature of determining described system is more than or equal to described upper limiting temperature; When Current Temperatures detection time, point was a time cycle apart from a preceding temperature detection time point, the rotating speed of the described fan of ladder raising was positioned at the temperature range of described setting up to the temperature that makes described system.
12. communications system according to claim 10 is characterized in that, described fan speed adjusting device, be used for, with the temperature of the system of described detection, compare with the lower limit temperature of the temperature range of described setting, determine that the temperature of described system is less than or equal to described lower limit temperature; When Current Temperatures detection time, point was a time cycle apart from a preceding temperature detection time point, the rotating speed of the described fan of ladder reduction was positioned at the temperature range of described setting up to the temperature that makes described system.
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| CN200910127035A CN101832287A (en) | 2009-03-10 | 2009-03-10 | Method and device for speed regulation of fan and communication system |
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| CN200910127035A CN101832287A (en) | 2009-03-10 | 2009-03-10 | Method and device for speed regulation of fan and communication system |
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| CN101832287A true CN101832287A (en) | 2010-09-15 |
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| CN200910127035A Pending CN101832287A (en) | 2009-03-10 | 2009-03-10 | Method and device for speed regulation of fan and communication system |
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Application publication date: 20100915 |