CN105094250A - Automatic speed control fan - Google Patents
Automatic speed control fan Download PDFInfo
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- CN105094250A CN105094250A CN201410207908.XA CN201410207908A CN105094250A CN 105094250 A CN105094250 A CN 105094250A CN 201410207908 A CN201410207908 A CN 201410207908A CN 105094250 A CN105094250 A CN 105094250A
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- fan
- temperature
- sensitive sticker
- speed control
- control table
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Control Of Temperature (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides an automatic speed control fan, which is suitable for a server system provided with a plurality of temperature sensors and a plurality of fans. A method comprises the following steps: partitioning a mainboard of the server system into a plurality of areas, wherein each area is provided with at least one temperature sensor; setting a mirror sensor for each area, and setting a corresponding deviation value for each temperature sensor in the area, wherein the reading value of each mirror sensor is the sum of the practical reading value of one temperature sensor and a corresponding deviation value; allocating at least one fan speed control table for each area, wherein corresponding relationships between fan rotating speeds and the reading values of the mirror sensors are stored in the fan speed control tables; acquiring the practical reading value of one temperature sensor, and acquiring a corresponding mirror sensor reading value in combination with the deviation value of the temperature sensor; and adjusting the fan rotating speeds with the mirror sensor reading values with reference to the fan speed control tables. Through adoption of the automatic speed control fan, the fan rotating speeds can be controlled accurately, and the performance of the system in heat dissipation, energy saving and noise is improved.
Description
Technical field
The present invention relates to a kind of fan of cruise control.
Background technology
Along with the fast development of computer technology, people are also unprecedentedly surging for the demand of reliable and stable server system.Thus under the prerequisite constantly promoted at terminal system processing power, the data throughput of server system and arithmetic capability also must be upgraded thereupon, meet at many levels, the demand of high reliability with the treatment effeciency and function that promote server.But the high strength running at full capacity of CPU and memory device can produce a large amount of heats, it directly causes temperature during server system operation to increase, when temperature rises to too high temperature, server system will be made unstable, even abnormal closedown, thus threaten the safety of user data.In order to enable server system ensure long reliable and stable running, the heat Export server that each element is dispersed by heat abstractor must be used.
Account for most fan coolings in the server heat sink used at present, it utilizes the fan being distributed in server system various places inside to be discharged with air by heat.
In server system, the fan radiating system that fan and fan speed controlling device form can due to factors such as platform, mechanism and server internal layouts difference to some extent, but all server system fans using fan as heat abstractor and speed-controlling device basic structure roughly the same.
Figure 1 shows that existing fan control deadbeat is intended to.
Please refer to Fig. 1, multiple fan 100a, 100b, 100c, 100d are arranged at server system various places inside, in different server contention states, carry out temperature control respectively with different rotating speeds to the regional area of server internal, rotation speed of the fan raises with temperature and accelerates.
Simultaneously, in inner each crucial heating place of server system, as the place such as CPU, hard disk is provided with multiple temperature sensor 102a, 102b, 102c, 102d, obtained reading for detecting the temperature of region, and is fed back to server system by each temperature-sensitive sticker 102a-102d.
Specifically, each fan 100a-100d is by the baseboard management controller 104 (BaseboardManagementController of server, MBC) control, the reading that it obtains by each temperature-sensitive sticker 102a-102d is sent to baseboard management controller 104, in baseboard management controller 104, there are multiple fan speed control table 106a, 106b, 106c, 106d, wherein fan speed control table 106a corresponds to fan 100a and temperature-sensitive sticker 102a, by that analogy, each fan speed control table is all corresponding to a fan and a temperature-sensitive sticker.After baseboard management controller 104 receives the reading of all temperature-sensitive sticker 102a-102d, its fan speed control table 106a-106d corresponding with inside is contrasted, obtain the rotating speed saying corresponding each fan 100a-100d with these readings, thus fan 100a-100d is adjusted to corresponding rotating speed, realize the control to the temperature in server system with this.
A kind of cruise control fan as shown in Figure 1 is easily known, each temperature-sensitive sticker 102a-102d is all corresponding to a fan speed control table 106a-106d, along with server system is to heat radiation, the improving constantly of noise requirements, demand for temperature-sensitive sticker quantity also constantly increases, to increase the quantity of temperature-sensitive sticker, then certainly will to increase the fan speed control table of respective numbers.But, existing software design architecture limits to some extent for the quantity of fan speed control table, therefore, how realize the rapid-result problem demanding prompt solution in the industry of the accurate control of fan with less fan speed control table and more temperature-sensitive sticker on the basis not changing existing software architecture.
Summary of the invention
In view of this, object of the present invention is just to provide a kind of cruise control fan, can realize the accurate control speed to fan under the prerequisite not changing software architecture with less fan speed control table and more temperature-sensitive sticker.
According to one embodiment of the invention, provide a kind of cruise control fan, be applicable in a server system, this server system has multiple temperature-sensitive sticker and multiple fan, fan adjusts its rotating speed according to temperature-sensitive sticker and fan speed control table, comprises the following steps:
The mainboard of server system is divided into multiple region, and each region has at least one temperature-sensitive sticker;
For each region arranges a mirror image sensor, and set the off-set value of a correspondence for each temperature-sensitive sticker in region, wherein mirror image sensor to read to be worth be the off-set value sum that a temperature-sensitive sticker actual reads value and its correspondence;
For at least one fan speed control table of each region allocation, wherein fan speed control table stores the corresponding relation that rotation speed of the fan and mirror image sensor read value;
Obtain the actual of a temperature-sensitive sticker and read value, and read value in conjunction with the mirror image sensor that its off-set value obtains its correspondence; And
Read value with mirror image sensor and adjust described rotation speed of the fan with reference to fan speed control table.
According to an embodiment, each region at least comprises first kind temperature-sensitive sticker and Equations of The Second Kind temperature-sensitive sticker, and first kind temperature-sensitive sticker is different with the precision of Equations of The Second Kind temperature-sensitive sticker; And
The first fan speed control table that each region allocation has first kind temperature-sensitive sticker corresponding and second fan speed control table corresponding with Equations of The Second Kind temperature-sensitive sticker.
Preferably, the precision of first kind temperature-sensitive sticker is 0.5 degree Celsius, and the precision of Equations of The Second Kind temperature-sensitive sticker is 1 degree Celsius; And
First fan speed control table stepping is 0.5 degree Celsius, and the second fan speed control table stepping is 1 degree Celsius.
Wherein, the mainboard of server system is divided into 4 regions, and each region is to having first fan speed control table and second fan speed control table.
Wherein, the method also comprises: show that the actual of described temperature-sensitive sticker reads value to user.
Preferably, this kind of cruise control fan also comprises: when get the multiple temperature-sensitive stickers in a region actual read value after, the off-set value in conjunction with each temperature-sensitive sticker obtains the multiple of mirror image sensor and reads value; And
Rotation speed of the fan is adjusted with reference to fan speed control table with multiple maximal values read in value of mirror image sensor.
Wherein, each region is all to there being one or more fan.
The advantage of a kind of cruise control fan provided by the invention is used to be, utilize mirror image sensor and off-set value corresponding with fan speed control table, thus utilize limited fan speed control table corresponding with multiple temperature-sensitive sticker when there is no hardware modifications, realize accurately controlling rotation speed of the fan, improve the radiating efficiency of system, and avoid the waste of the energy, reduce unnecessary noise.
Accompanying drawing explanation
For above and other object of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of described accompanying drawing:
Fig. 1 illustrates existing fan control deadbeat intention.
Fig. 2 illustrates the server system schematic diagram according to one embodiment of the invention.
Fig. 3 illustrates the process flow diagram of a kind of cruise control fan in the server system shown in Fig. 2.
Embodiment
Below will know explaination spirit of the present invention with accompanying drawing and detailed description, any those of ordinary skill in the art is after understanding preferred embodiment of the present invention, when can technology disclosed by the present invention, be changed and modify, and do not depart from spirit of the present invention and scope.
Incorporated by reference to the server system schematic diagram illustrated with reference to Fig. 2 and Fig. 3, Fig. 2 according to one embodiment of the invention, Fig. 3 illustrates the process flow diagram of a kind of cruise control fan in the server system shown in Fig. 2.
As shown in Figure 2, the mainboard of server system 200 inside is distributed with multiple temperature-sensitive sticker 102, multiple fan 100 is arranged in server system 200 for being discharged by heat.
First, the mainboard of server system is divided into multiple region, each region has at least one temperature-sensitive sticker 102, and each region is all to there being one or more fan 100.
Be four regions shown in Fig. 2, but not as limit.
Then, for each region arranges a mirror image sensor, and set a corresponding off-set value for each temperature-sensitive sticker 102 in each region, mirror image sensor to read to be worth be the off-set value sum that a temperature-sensitive sticker 102 actual reads value and its correspondence.
Secondly, be at least one fan speed control table of each region allocation, fan speed control table stores the corresponding relation that rotation speed of the fan and mirror image sensor read value, and usual fan speed control table is stored in the baseboard management controller of server system 200.
Then, obtain the actual of a temperature-sensitive sticker 102 and read value, and obtain the mirror image sensor of its correspondence in conjunction with its off-set value read value.
Finally, adjust corresponding rotation speed of the fan with the value of reading of this mirror image sensor with reference to corresponding fan speed control table, thus Control Server internal system temperature.
In addition, each region at least comprises first kind temperature-sensitive sticker and Equations of The Second Kind temperature-sensitive sticker, and first kind temperature-sensitive sticker is different with the precision of Equations of The Second Kind temperature-sensitive sticker, mate therewith, the first fan speed control table that each region allocation has first kind temperature-sensitive sticker corresponding and second fan speed control table corresponding with Equations of The Second Kind temperature-sensitive sticker.
Specifically, the precision of first kind temperature-sensitive sticker is 0.5 degree Celsius, and the precision of Equations of The Second Kind temperature-sensitive sticker is 1 degree Celsius, and therefore, the first fan speed control table stepping is 0.5 degree Celsius, and the second fan speed control table stepping is 1 degree Celsius.
That is, in the present embodiment, each region is to having first fan speed control table and second fan speed control table, wherein, sensing precision in each region is that to correspond to stepping be first fan speed control table of 0.5 degree Celsius for the first kind temperature-sensitive sticker of 0.5 degree Celsius, and sensing precision is the second fan speed control table that the Equations of The Second Kind temperature-sensitive sticker of 1 degree Celsius corresponds to that stepping is 1 degree Celsius.
So, corresponding two the control speed tables in each region, the demand that whole server system only needs eight control speed tables just can cover all temperature-sensitive stickers 102 carries out control speed.
Owing to will show that the actual of temperature-sensitive sticker 102 reads value to user, therefore this actual value of reading can not be changed, so need to carry out the mapping with fan speed control table by mirror image sensor in conjunction with off-set value.
Specifically, please refer to Fig. 3, adopt mirror image sensor to carry out control speed, need after initialization for each temperature-sensitive sticker sets an off-set value (step 300).
Then, obtain the actual of temperature-sensitive sticker and read value, and this actual value and its off-set value sum read is read value (step 302) as mirror image sensor.
Then, by mirror image sensor to read value corresponding with corresponding fan speed control table, therefrom obtain with mirror image sensor read rotation speed of the fan corresponding to value (304).
Finally, fan is adjusted to the temperature that this rotating speed carrys out regulation server system.
Wherein, when get the multiple temperature-sensitive stickers 102 in a region actual read value after, off-set value in conjunction with each temperature-sensitive sticker 102 obtains the multiple of mirror image sensor and reads value, reads maximal value in value with reference to fan speed control table to adjust rotation speed of the fan with mirror image sensor multiple.
Easily known by above embodiment, the advantage of a kind of cruise control fan provided by the invention is used to be, utilize mirror image sensor and off-set value corresponding with fan speed control table, thus utilize limited fan speed control table corresponding with multiple temperature-sensitive sticker when there is no hardware modifications, realize accurately controlling rotation speed of the fan, improve the radiating efficiency of system, and avoid the waste of the energy, reduce unnecessary noise.
Claims (7)
1. a cruise control fan, be applicable in a server system, described server system has multiple temperature-sensitive sticker and multiple fan, described fan adjusts its rotating speed according to described temperature-sensitive sticker and fan speed control table, it is characterized in that, described a kind of cruise control fan comprises the following step: the mainboard of described server system is divided into multiple region, and region described in each has temperature-sensitive sticker described at least one; For each region arranges a mirror image sensor, and set the off-set value of a correspondence for each temperature-sensitive sticker in described region, wherein mirror image sensor to read to be worth be the off-set value sum that a temperature-sensitive sticker actual reads value and its correspondence; For at least one fan speed control table of each region allocation, wherein said fan speed control table stores the corresponding relation that rotation speed of the fan and described mirror image sensor read value; Obtain the actual of a temperature-sensitive sticker and read value, and read value in conjunction with the mirror image sensor that its off-set value obtains its correspondence; Read value with described mirror image sensor and adjust described rotation speed of the fan with reference to fan speed control table.
2. a kind of cruise control fan as claimed in claim 1, is characterized in that: region described in each at least comprises first kind temperature-sensitive sticker and Equations of The Second Kind temperature-sensitive sticker, and first kind temperature-sensitive sticker is different with the precision of Equations of The Second Kind temperature-sensitive sticker; The first fan speed control table that region allocation described in each has first kind temperature-sensitive sticker corresponding and the second fan speed control table corresponding to Equations of The Second Kind temperature-sensitive sticker.
3. a kind of cruise control fan as claimed in claim 2, is characterized in that: the precision of described first kind temperature-sensitive sticker is 0.5 degree Celsius, and the precision of described Equations of The Second Kind temperature-sensitive sticker is 1 degree Celsius; Described first fan speed control table stepping is 0.5 degree Celsius, and described second fan speed control table stepping is 1 degree Celsius.
4. a kind of cruise control fan as claimed in claim 2, is characterized in that: the mainboard of described server system is divided into 4 regions, and each region is to having described first fan speed control table and described second fan speed control table.
5. a kind of cruise control fan as claimed in claim 1, is characterized in that, more comprise: show that the actual of described temperature-sensitive sticker reads value to user.
6. a kind of cruise control fan as claimed in claim 1, is characterized in that: when get the multiple temperature-sensitive stickers in a region actual read value after, the off-set value in conjunction with each temperature-sensitive sticker obtains the multiple of mirror image sensor and reads value; Read value with described the multiple of mirror image sensor, adjust described rotation speed of the fan with multiple maximal values read in value of described mirror image sensor with reference to described fan speed control table.
7. a kind of cruise control fan as claimed in claim 1, is characterized in that: each region is all to there being one or more fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207908.XA CN105094250A (en) | 2014-05-18 | 2014-05-18 | Automatic speed control fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207908.XA CN105094250A (en) | 2014-05-18 | 2014-05-18 | Automatic speed control fan |
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| CN105094250A true CN105094250A (en) | 2015-11-25 |
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| CN201410207908.XA Pending CN105094250A (en) | 2014-05-18 | 2014-05-18 | Automatic speed control fan |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185209A (en) * | 2018-10-15 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of rotation speed of the fan method of adjustment and device |
| CN109471510A (en) * | 2018-09-04 | 2019-03-15 | 深圳市宝德计算机系统有限公司 | A kind of server radiating method, apparatus, equipment and computer storage medium |
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| CN101208856A (en) * | 2004-04-30 | 2008-06-25 | 美蓓亚株式会社 | Self calibrating fan |
| CN101566965A (en) * | 2008-04-22 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Fan rotating speed control method |
| CN102298431A (en) * | 2010-06-28 | 2011-12-28 | 鸿富锦精密工业（深圳）有限公司 | Computer heat radiation control system and method |
| US20120078420A1 (en) * | 2010-09-28 | 2012-03-29 | Cisco Technology, Inc. | Fan speed control |
| CN103019341A (en) * | 2011-09-27 | 2013-04-03 | 英业达股份有限公司 | Fan speed control method |
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2014
- 2014-05-18 CN CN201410207908.XA patent/CN105094250A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208856A (en) * | 2004-04-30 | 2008-06-25 | 美蓓亚株式会社 | Self calibrating fan |
| CN101566965A (en) * | 2008-04-22 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Fan rotating speed control method |
| CN102298431A (en) * | 2010-06-28 | 2011-12-28 | 鸿富锦精密工业（深圳）有限公司 | Computer heat radiation control system and method |
| US20120078420A1 (en) * | 2010-09-28 | 2012-03-29 | Cisco Technology, Inc. | Fan speed control |
| CN103019341A (en) * | 2011-09-27 | 2013-04-03 | 英业达股份有限公司 | Fan speed control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471510A (en) * | 2018-09-04 | 2019-03-15 | 深圳市宝德计算机系统有限公司 | A kind of server radiating method, apparatus, equipment and computer storage medium |
| CN109185209A (en) * | 2018-10-15 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of rotation speed of the fan method of adjustment and device |
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