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Method for accurately controlling rotating speed of fan

A fan speed and fan technology, applied in pump control, engine control, non-variable pumps, etc., can solve the problem of inaccurate system operation reliability, heat dissipation risk, serious processor heat dissipation, and poor control of fan noise and other issues to achieve the effect of improving timeliness and accuracy, improving work reliability and prolonging the service life

Inactive Publication Date: 2015-03-25
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Problems solved by technology

However, the previous fan control strategy was set based on the temperature of the processor. However, during the actual server operation, in addition to the processor, other heat-generating components in the system or certain chips on the motherboard may also have heat dissipation risks. Even more serious than the heat dissipation problem of the processor, adjusting the fan speed only based on the temperature of the processor cannot accurately reflect the reliability of the system operation, nor can it obtain an accurate fan control strategy, and ultimately cannot control the fan noise well or reduce the fan speed. power consumption

Method used

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  • Method for accurately controlling rotating speed of fan
  • Method for accurately controlling rotating speed of fan
  • Method for accurately controlling rotating speed of fan

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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail in conjunction with the accompanying drawings, and the process of realizing this method for effectively regulating the fan speed of the server system will be described with specific examples, and compared with conventional Compared with the fan control methods, how the control method proposed in the present invention can efficiently monitor the fan speed, reduce fan noise and power consumption, better protect the various components in the system can work at a stable temperature for a long time, and effectively ensure that the CPU, memory, hard disk life and performance of components.

[0018] Such as figure 1 As shown, the conventional fan control method only regulates the system fan according to the CPU temperature. The controller reads the CPU temperature Tj or the temperature difference ΔTj from the CPU, and uses ...

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Abstract

The invention provides a method for accurately controlling the rotating speed of a fan and relates to the field of system heat dissipation. The method comprises the steps that difference values of actual temperatures read by a plurality of sensors and a preset temperature are simultaneously calculated and compared, the fan PWM capable of meeting the need for heat dissipation of all monitored heat emitting points at the same time is determined through certain mathematical calculation, and finally the PWM is transmitted to the fan through a mainboard to achieve the real-time monitoring and quick feedback control over the rotating speed of the fan.

Description

technical field [0001] The invention relates to system heat dissipation technology, in particular to a method for precisely regulating the rotating speed of a fan. Background technique [0002] In recent years, the rapid development of Internet and cloud computing technology has affected and changed people's lives in all aspects, and these developments are inseparable from the support of hardware technology, that is, the support of server-based data centers. The data center computer room is a large-scale occasion where high-density, high-performance servers are intensively used. When it comes to data centers, words such as "temperature", "green", and "power consumption" are often used, because the stable operation of the data center affects the heat dissipation of the server. And the environmental requirements are particularly high. A good server heat dissipation design can ensure the stable operation of the equipment, prolong the life cycle of the equipment, reduce the fail...

Claims

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Application Information

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IPC IPC(8): F04D27/00G06F1/20
CPCF04D27/004F05D2270/44G06F1/20
Inventor 苏丽
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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