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Altitude correction method and system for regulating and controlling server fan

An altitude and server technology, applied in the field of server cooling, can solve the problems of increasing the server BMC version, affecting the product delivery cycle, increasing the investment of human resources, etc., to meet the cooling needs of fans, promote the application value well, and avoid the effect of workload.

Inactive Publication Date: 2017-06-30
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can solve the heat dissipation requirements during the use of the server, it will also increase the BMC version of the server, increase a large amount of human resources investment, increase production costs, and will affect the product delivery cycle and reduce work efficiency.

Method used

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  • Altitude correction method and system for regulating and controlling server fan

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Embodiment 1

[0032] Such as figure 1 As shown, the altitude correction method used for server fan control according to the present invention, according to the air density at different altitudes, the fan duty ratio correction parameter calculation formula is fitted, and the correction parameter calculation formula is: α=105 / (105-11 *h), where α is the correction parameter and h is the altitude above sea level. Import the correction parameter obtained according to the correction parameter calculation formula into the fan control program as a variable, so that the fan control program can increase or decrease the fan duty cycle required for fan heat dissipation according to the altitude. The fan duty cycle calculation formula is PWM out =α*PWM, where α is the correction parameter and PWM is the normal fan duty cycle. The fan speed is adjusted according to the fan duty cycle. An altitude value input interface is reserved in the fan control program, and any altitude value below 10,000 can be i...

Embodiment 2

[0043] The altitude correction system for server fan control of the present invention includes:

[0044] Calculation module: used to calculate fan duty cycle correction parameters according to air density at different altitudes. The calculation formula of the fan duty cycle correction parameter is: α=105 / (105-11*h), where α is the correction parameter and h is the altitude above sea level.

[0045] Input module: used to import the calculated correction parameters into the fan control program as variables.

[0046] Output module: used to output the fan duty cycle recalculated according to the correction parameters, the calculation formula is PWM out =α*PWM, where α is the correction parameter and PWM is the normal fan duty cycle.

[0047] Speed ​​adjustment module: used to adjust the fan speed according to the output fan duty cycle to meet the cooling requirements of the server.

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Abstract

The invention discloses an altitude correction method and system for regulating and controlling a server fan, which belong to the technical field of heat radiation of servers. The altitude correction method for regulating and controlling the server fan comprises the following steps: fitting a fan duty ratio correction parameter calculation formula according to air densities of different altitudes, importing a correction parameter, obtained according to the correction parameter calculation formula, as a variable into a fan regulation and control program, so that the fan regulation and control program can increase or decrease a fan duty ratio needed by the heat radiation of the fan according to the altitude and adjust a rotation speed of the fan according to the fan duty ratio, wherein an altitude numerical value input interface is reserved in the fan regulation and control program, and an altitude numerical value can be input by virtue of the input interface. By adopting the altitude correction method for regulating and controlling the server fan, along with different application altitudes of a server, the real fan rotation speed can meet the heat radiation requirement of high altitude areas, and the popularization and application value is high.

Description

technical field [0001] The invention relates to the technical field of server heat dissipation, and specifically provides an altitude correction method and system for server fan control. Background technique [0002] Computers have the advantages of a large amount of stored information and convenient and quick access to information by users, and are widely used. Especially in recent years, with the further development of society and economy, users have gradually increased their requirements on various performances of computers. Compared with ordinary computers, servers have better performance in terms of stability and security, so servers are widely used in large enterprises. At present, the application range of server products has been greatly expanded, and high-altitude areas such as Qinghai-Tibet in China have also begun to use servers on a large scale. However, the air density in high-altitude areas is low, which affects the heat dissipation of servers. Cooling air vol...

Claims

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Application Information

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IPC IPC(8): G06F1/20F04D27/00
CPCF04D27/004G06F1/20H05K7/20836H02P31/00H05K7/20727G06F1/206Y02B30/70H02P7/06F04D27/002
Inventor 于光义
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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