Method, circuit and device for monitoring abnormal operation of fan

A technology that operates abnormally and monitors circuits. It is applied in hardware monitoring, electrical digital data processing, instruments, etc., and can solve problems such as inability to accurately determine the source of faults, unfavorable repairs and maintenance, etc.

Active Publication Date: 2020-09-29
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simultaneously realize fan control and monitoring through BMC, the implementation method is simple and efficient, but when a fault occurs, the source of the fault cannot be accurately judged, which is not conducive to later repair and maintenance

Method used

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  • Method, circuit and device for monitoring abnormal operation of fan
  • Method, circuit and device for monitoring abnormal operation of fan
  • Method, circuit and device for monitoring abnormal operation of fan

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Experimental program
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Embodiment approach

[0056] According to some implementations of the method for monitoring abnormal fan operation of the present invention, the method further includes:

[0057] In response to the detection of abnormal fan speed through the BMC and the drop in the power supply voltage detected through the ADC, it is confirmed that the power supply line is abnormal;

[0058] In response to detecting abnormal fan speed through the BMC and detecting abnormal output voltage through the ADC, confirm that the coding of the BMC and / or the transmission path of the PWM signal are abnormal;

[0059] In response to detecting that the fan speed is abnormal through the BMC and the control information of the BMC and the sampling value of the ADC are normal, it is confirmed that the BMC monitors the speed detection signal of the fan abnormally and / or the fan itself is faulty.

[0060] In some embodiments of the present invention, the server fan is powered by 12V, and the 12V power supply voltage is connected to ...

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PUM

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Abstract

The invention discloses a method for monitoring abnormal operation of a fan, and the method comprises the steps: enabling the power supply voltage of the fan to be connected to an ADC through resistance voltage division, so as to monitor the power supply voltage in real time through the ADC; connecting a PWM signal generated by the BMC to a fan and a BULK step-down circuit, adjusting the PWM signal through the BMC to control the rotating speed of the fan, converting the PWM signal into a fixed output voltage through the BULK step-down circuit, and monitoring the output voltage through an ADC;enabling the BMC to communicate with the ADC through the SMbus, and monitoring the abnormal information of the rotating speed of the fan and the sampling values of the power supply voltage and the output voltage monitored by the ADC; and determining whether the fan operates abnormally or not and an abnormal source when the fan operates abnormally based on the fan rotating speed abnormal information, the power supply voltage and the output voltage. The invention further discloses a circuit and a device. According to the method, circuit and device for monitoring abnormal operation of the fan, when the rotating speed of the fan is abnormal, the fault source can be accurately judged.

Description

technical field [0001] The present invention relates to the technical field of server monitoring, and more specifically, to a method, circuit and device for monitoring abnormal operation of a fan. Background technique [0002] As a kind of computer, the server provides computing, storage, data exchange and other services for Internet users, and is an important component node in the Internet era. Due to the high computing speed, long running time, and large data throughput of the server, the power consumption and heat generated during the running process are greater than those of the home PC. High temperature is the enemy of integrated circuits. High temperature will not only lead to system instability. , the service life is shortened, and in severe cases, it will cause circuit burnout; heat dissipation is a research and development problem that must be overcome in the server design process. A good heat dissipation solution, on the one hand, ensures the efficient and stable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/30G06F1/20
CPCG06F11/3055G06F1/20
Inventor 郭晓宇
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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