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Acoustic detection based status detection method of server fan

A server and fan technology, applied in the field of server heat dissipation, can solve the problem of lack of effective monitoring of server fans, achieve the effect of promoting the use value, reducing labor intensity, and improving the estimation ability

Inactive Publication Date: 2012-06-27
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention is based on the theoretical support of acoustic detection and processing, and uses a server fan state detection method based on acoustic detection to solve the problem of lack of effective monitoring of server fans in current actual products.

Method used

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  • Acoustic detection based status detection method of server fan
  • Acoustic detection based status detection method of server fan

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Experimental program
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Embodiment

[0026] a) Place the microphone inside the server chassis and use a certain sampling frequency. It is necessary to collect the audio signal when the fan is running near the fan inside the server chassis to be tested; the fixed position of the microphone needs to be as close as possible to the fan. If there are multiple locations inside the server For the fan, it is necessary to set up multiple microphones to cooperate with the installation and fixation;

[0027] b) Spectrum analysis is performed on the fan sound signal input through the microphone, that is, the signal emitted by the signal source is expanded in order of frequency, so that it becomes a function of frequency;

[0028] c) When the signal amplitude at several important frequency points needs to be compared and does not match the signal amplitude in the normal state, it is inferred that the fan is not working properly according to the detection accuracy requirements;

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Abstract

The invention provides an acoustic detection based status detection method of a server fan. The detection method comprises the following steps of: 1) placing a microphone in a machine box of a server, and collecting an audio signal near the fan in the machine box of the server to be detected when the fan is operating; 2) carrying out sampling on a fan sound signal input by the microphone and carrying out spectrum analysis, namely, expanding signals sent from a signal source according to a frequency sequence, editing the signals to a frequency function, and analyzing signal amplitudes on major frequency points; 3) deducing whether the fan is in the abnormal working state when the signal amplitudes of some major frequency points are not matched with the signal amplitudes in the normal state; 4) placing the microphone in the machine box of the server, wherein the fixed position of the microphone needs to be close to the fan as much as possible; and if multiple fans are arranged in the server, multiple microphones are correspondingly needed to coordinate the detection and sampling.

Description

technical field [0001] The present invention relates to the field of server heat dissipation. Specifically, a method for detecting the state of server fans based on acoustic detection is used to solve the problem of lack of effective monitoring of server fans in current actual products, greatly improving the reliability detection of server fans, and Improved prediction of server fan failures. Background technique [0002] With the increasing integration of servers, the heat dissipation of servers is highly valued by manufacturers and users. Due to the high frequency of CPU use in servers, multiple CPUs work in parallel at the same time, and SAS hard disks running at high speeds and high-power power supplies. Components typically generate a lot of heat, causing the temperature inside the server chassis to rise rapidly. Whether the heat can be effectively discharged as soon as possible is the prerequisite for the server to work stably. Blade servers and 1U server chassis cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/22
Inventor 刘涛
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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