CN111124827A - Monitoring device and monitoring method for equipment fan - Google Patents
Monitoring device and monitoring method for equipment fan Download PDFInfo
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- CN111124827A CN111124827A CN201911332534.3A CN201911332534A CN111124827A CN 111124827 A CN111124827 A CN 111124827A CN 201911332534 A CN201911332534 A CN 201911332534A CN 111124827 A CN111124827 A CN 111124827A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012806 monitoring device Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 87
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3055—Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/325—Display of status information by lamps or LED's
- G06F11/326—Display of status information by lamps or LED's for error or online/offline status
Abstract
The invention discloses a monitoring device of an equipment fan, which comprises a fan rotating speed detection device, a signal detection circuit and an alarm module, wherein the signal detection circuit is connected with the alarm module; the fan rotating speed detection device is arranged on a fan module of the equipment, a first receiving end of the signal detection circuit is connected with the fan rotating speed detection device, a second receiving end of the signal detection circuit is connected with a fan in-place signal end of the fan module, and an output end of the signal detection circuit is connected with the alarm module; the signal detection circuit controls the alarm module to alarm the fan fault when detecting that the rotating speed of the fan module is zero and determining that the fan module is not in place, so that the condition of fan fault false alarm caused by abnormal change of a fan rotating speed threshold value in the BMC chip is avoided, the event of fan fault false alarm is reduced, the interference on operation and maintenance of a data center is reduced, and the condition that the fault rate of the whole server is higher than an actual value is reduced. The invention also discloses a monitoring method of the equipment fan, which has the beneficial effects.
Description
Technical Field
The invention relates to the technical field of server monitoring, in particular to a monitoring device and a monitoring method for an equipment fan.
Background
In the server system, a BMC (Baseboard Management Controller) is generally used to monitor and manage the health condition of the motherboard. Some important parameters such as voltage, temperature, power consumption and the like on the mainboard are monitored and recorded through the BMC, and the monitoring and the regulation of the rotating speed of the fan are also realized through a fan control module in the BMC. The monitoring and regulating link of the rotating speed of the server fan mainly comprises the following links: firstly, BMC collects temperature register information of key parts and key components of a mainboard through I2C bus, and then performs register value conversion inside BMC to form 'centigrade' which can be identified; secondly, a heat dissipation regulation and control strategy is integrated into the BMC, and the current heat dissipation can be ensured only when the rotating speed of the fan reaches a certain number of revolutions when the collected temperature reaches a certain control point; thirdly, the fan control module in the BMC outputs a PWM (Pulse Width modulation) signal for controlling the rotating speed of the fan according to the monitored temperature information and by combining a heat dissipation strategy; fourthly, the BMC can detect the rotating speed of the fan in real time through the GPIO, compares the rotating speed with a set rotating speed threshold of the fan, and lights a fan fault indicating lamp if the rotating speed is lower than the rotating speed threshold, so that the monitoring and the regulation of the fan are realized. Fig. 1 is a schematic structural diagram of a fan monitoring system in the prior art. As shown in fig. 1, the BMC chip 102 is connected to the fan module 101 and the fan failure indicator 103, respectively, and lights the fan failure indicator 103 to alarm a fan failure when detecting that the fan speed is lower than the fan speed threshold.
However, during the actual use of the server, the rotational speed threshold of the fan may suddenly change abnormally, so that the originally normal rotational speed of the fan is determined as the abnormal rotational speed, and after the BMC chip 102 determines the abnormal rotational speed, the fan fault indicator 103 is turned on, which causes a false alarm, greatly interferes with the operation and maintenance of the data center, and also has a bad influence on the failure rate of the whole server.
How to reduce the false alarm event of fan failure is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a monitoring device and a monitoring method of an equipment fan, which are used for reducing false alarm events of fan faults.
In order to solve the technical problem, the invention provides a monitoring device of an equipment fan, which comprises a fan rotating speed detection device, a signal detection circuit and an alarm module;
the fan rotating speed detection device is arranged on a fan module of equipment, a first receiving end of the signal detection circuit is connected with the fan rotating speed detection device, a second receiving end of the signal detection circuit is connected with a fan in-place signal end of the fan module, and an output end of the signal detection circuit is connected with the alarm module;
the signal detection circuit is used for controlling the alarm module to carry out fan fault alarm when the fan rotation speed detection device detects that the rotation speed of the fan module is zero and/or the fan module is determined not to be in place according to the fan in-place signal end.
Optionally, the fan rotation speed detection device is specifically a PWM driving circuit of the fan module;
correspondingly, the specific step that the signal detection circuit detects that the rotating speed of the fan module is zero according to the fan rotating speed detection device is as follows:
and the signal detection circuit determines that the rotating speed of the fan module is zero when the PWM wave output by the PWM driving circuit is zero.
Optionally, the signal detection circuit specifically includes an and gate circuit and a signal processor;
the first receiving end of the AND gate circuit is connected with the PWM driving circuit, the second receiving end of the AND gate circuit is connected with the fan in-place signal end, the output end of the AND gate circuit is connected with the receiving end of the signal processor, and the output end of the signal processor is connected with the alarm module;
and the signal processor is used for controlling the alarm module to carry out fan fault alarm when the output of the AND gate circuit is zero.
Optionally, the signal detection circuit specifically includes an and gate circuit and a signal processor;
the first receiving end of the AND-gate circuit is connected with the PWM driving circuit, the second receiving end of the AND-gate circuit is connected with the fan in-place signal end, the output end of the AND-gate circuit is connected with the first receiving end of the signal processor, the second receiving end of the signal processor is connected with the fan fault output end of the BMC chip of the equipment, and the output end of the signal processor is connected with the alarm module;
and the signal processor is used for controlling the alarm module to alarm the fan fault when the output signal of the fan fault output end is equal to the output signal of the AND gate circuit.
Optionally, the fan rotation speed detection device is specifically a rotation speed sensor.
Optionally, a third receiving end of the signal detection circuit is connected to a fan fault output end of the BMC chip of the device, and an output end of the signal detection circuit is further connected to a receiving end of the BMC chip;
the BMC chip is used for recording fan fault logs according to the detected rotating speed of the fan module and the output signal of the signal detection circuit.
Optionally, the alarm module includes an LED indicator light.
In order to solve the above technical problem, the present invention further provides a method for monitoring an equipment fan, including:
when the fan rotating speed of a fan module of the equipment is smaller than a fan rotating speed threshold value, judging whether the fan rotating speed is not zero and the fan on-position signal of the fan module is on position or not;
if yes, a fan fault alarm is not triggered;
and if not, triggering the fan fault alarm.
Optionally, the rotation speed of the fan is not zero, specifically:
and the PWM wave output by the PWM driving circuit of the fan module is not zero.
Optionally, the method further includes:
and recording a fan fault log of the fan module according to the fan rotating speed and the fan in-place signal.
The monitoring device of the equipment fan provided by the invention comprises a fan rotating speed detection device, a signal detection circuit and an alarm module; the fan rotating speed detection device is arranged on a fan module of the equipment, a first receiving end of the signal detection circuit is connected with the fan rotating speed detection device, a second receiving end of the signal detection circuit is connected with a fan in-place signal end of the fan module, and an output end of the signal detection circuit is connected with the alarm module; the signal detection circuit controls the alarm module to carry out fan fault alarm when the fan rotation speed detection device detects that the rotation speed of the fan module is zero and the fan module is determined not to be in place according to the fan in-place signal end, so that the fan fault false alarm condition caused by abnormal change of the fan rotation speed threshold value in the BMC chip is avoided, the fan fault false alarm event is reduced, the interference to the operation and maintenance of a data center is reduced, and the condition that the fault rate of the whole server is higher than an actual value is reduced. The invention also provides a monitoring method of the equipment fan, which has the beneficial effects and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a fan monitoring system according to the prior art;
fig. 2 is a schematic structural diagram of a monitoring device for a fan of a first apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a monitoring device for a fan of a second apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a monitoring apparatus for a third device fan according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a monitoring device and a monitoring method of an equipment fan, which are used for reducing the false alarm event of fan failure.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a schematic structural diagram of a monitoring device for a fan of a first apparatus according to an embodiment of the present invention.
As shown in fig. 2, the monitoring apparatus for a fan of an apparatus according to an embodiment of the present invention includes a fan speed detecting device 201, a signal detecting circuit 202, and an alarm module 203;
the fan rotating speed detection device 201 is arranged on a fan module of the equipment, a first receiving end of the signal detection circuit 202 is connected with the fan rotating speed detection device 201, a second receiving end of the signal detection circuit 202 is connected with a fan in-place signal end 204 of the fan module, and an output end of the signal detection circuit 202 is connected with the alarm module 203;
the signal detection circuit 202 is used for controlling the alarm module 203 to alarm the fan failure when the fan rotation speed detection device 201 detects that the rotation speed of the fan module is zero and/or the fan is determined to be not in position at the position signal end 204 according to the fan.
It should be noted that, the monitoring apparatus of the device fan provided in the embodiment of the present invention is provided to replace the monitoring system of the device fan in the center of the prior art, and the alarm module 203 provided in the embodiment of the present invention may be equivalent to the alarm module 203 (fan failure indicator lamp) in the prior art, but the alarm module 203 is not controlled by the BMC chip, but is controlled by the signal detection circuit 202. In the prior art or the embodiment of the present invention, the principle of monitoring the fan failure is that the fan is considered to be failed when the fan speed is zero and/or the fan is not in place, that is, the fan speed threshold set in the prior art is only used to monitor whether the fan speed is zero, and the fan speed threshold is not changed under normal conditions. The fan rotating speed set value is obtained by the BMC chip according to the detected component temperature, the fan is controlled through PWM waves, the real-time rotating speed of the fan is obtained through PWM wave calculation, the real-time rotating speed of the fan is recorded in an SDR log, and when the real-time rotating speed of the fan is lower than the fan rotating speed set value, as long as the fan is in place and the fan rotating speed is not zero, fan fault alarm is not needed.
However, when a bug occurs in the program code running in the BMC chip, the fan speed threshold may be changed abnormally, such as to 1000 revolutions, and the fan may be in a normal running state at this time, but the speed is less than 1000 revolutions, which causes a false alarm event of fan failure.
In contrast, the monitoring device for the equipment fan according to the embodiment of the present invention additionally sets the signal detection circuit 202 to directly obtain the fan rotation speed and the fan in-place signal, and performs the fan fault alarm when the fan rotation speed is not zero and the fan is in place, so as to avoid the fan fault false alarm event caused by abnormal change of the fan rotation speed threshold in the BMC chip.
In a specific implementation, the fan speed detecting device 201 may employ a speed sensor. The alarm module 203 may employ an LED indicator light.
Further, a third receiving end of the signal detection circuit 202 is connected with a fan fault output end of the BMC chip of the device, and an output end of the signal detection circuit 202 is also connected with a receiving end of the BMC chip;
the BMC chip is configured to record a fan fault log according to the detected rotation speed of the fan module and the output signal of the signal detection circuit 202.
When the BMC chip detects that the fan speed is lower than the fan speed threshold but does not receive the fault alarm indication signal output by the signal detection circuit 202, it may determine that the fan speed threshold has an abnormal change, and at this time, may record a fan monitoring program fault log, and when it detects that the output signal of the signal detection circuit 202 is the fan fault control signal, it may determine that the fan has actually failed, and at this time, may record a fan fault log.
The monitoring device of the equipment fan provided by the embodiment of the invention comprises a fan rotating speed detection device, a signal detection circuit and an alarm module; the fan rotating speed detection device is arranged on a fan module of the equipment, a first receiving end of the signal detection circuit is connected with the fan rotating speed detection device, a second receiving end of the signal detection circuit is connected with a fan in-place signal end of the fan module, and an output end of the signal detection circuit is connected with the alarm module; the signal detection circuit controls the alarm module to carry out fan fault alarm when the fan rotation speed detection device detects that the rotation speed of the fan module is zero and the fan module is determined not to be in place according to the fan in-place signal end, so that the fan fault false alarm condition caused by abnormal change of the fan rotation speed threshold value in the BMC chip is avoided, the fan fault false alarm event is reduced, the interference to the operation and maintenance of a data center is reduced, and the condition that the fault rate of the whole server is higher than an actual value is reduced.
Fig. 3 is a schematic structural diagram of a monitoring apparatus for a second equipment fan according to an embodiment of the present invention.
On the basis of the foregoing embodiment, in the monitoring device for a device fan provided in the embodiment of the present invention, the fan rotation speed detection device 201 is specifically a PWM driving circuit of a fan module;
correspondingly, the specific steps of the signal detection circuit 202, according to the detection of the fan rotation speed detection device 201 that the rotation speed of the fan module is zero, are:
the signal detection circuit 202 determines that the rotation speed of the fan module is zero when the PWM wave output from the PWM drive circuit is zero.
The detection of the rotating speed of the fan can be indirectly realized based on the PWM wave output by the PWM driving circuit, when the PWM wave outputs a normal waveform, the rotating speed of the fan is not considered to be zero, and when the PWM waveform is zero, the rotating speed of the fan is considered to be zero.
On this basis, as shown in fig. 3, the signal detection circuit 202 may specifically include an and gate circuit 301 and a signal processor 302;
a first receiving end of the and circuit 301 is connected with the PWM driving circuit, a second receiving end of the and circuit 301 is connected with the fan in-place signal end 204, an output end of the and circuit 301 is connected with a receiving end of the signal processor 302, and an output end of the signal processor 302 is connected with the alarm module 203;
the signal processor 302 is used for controlling the alarm module 203 to alarm the fan failure when the output of the and circuit 301 is zero.
When the PWM wave outputs a normal waveform and the fan on-position signal is on-position, the signal output by the and circuit 301 is the PWM wave; when the PWM waveform is zero or the fan is not on bit, the signal output from the and circuit 301 is zero. Therefore, when the output of the and circuit 301 is zero, the signal processor 302 determines that the fan module has a fault, and controls the alarm module 203 to alarm the fan fault.
Fig. 4 is a schematic structural diagram of a monitoring apparatus for a third device fan according to an embodiment of the present invention.
In order to further improve the reliability of fan monitoring, as shown in fig. 4, on the basis of the foregoing embodiment, in the monitoring apparatus for a device fan according to the embodiment of the present invention, the signal detection circuit 202 specifically includes an and circuit 301 and a signal processor 302;
a first receiving end of the and-gate circuit 301 is connected with the PWM driving circuit, a second receiving end of the and-gate circuit 301 is connected with the fan in-place signal end 204, an output end of the and-gate circuit 301 is connected with a first receiving end of the signal processor 302, a second receiving end of the signal processor 302 is connected with a fan fault output end of a BMC chip of the device, and an output end of the signal processor 302 is connected with the alarm module 203;
the signal processor 302 is used for controlling the alarm module 203 to alarm the fan failure when the output signal G1 of the fan failure output end is equal to the output signal G2 of the AND gate circuit 301.
In order to improve the reliability of fan monitoring, the fan failure monitoring signal G1 output by the BMC chip through the GPIO pin is compared with the signal G2 output by the and circuit 301. When the fan module normally operates, the and circuit 301 outputs the PWM wave, and at this time, no matter the fan fault output terminal of the BMC chip outputs the signal that the fan is normal or abnormal, G1 is not equal to G2. Only when the fan module is abnormal, the output G2 of the and circuit 301 is zero, the output G1 of the fan fault output terminal of the BMC chip is also zero, the signal processor 302 determines that G1 is equal to G2, and outputs a fan fault control signal G3 to control the alarm module 203 to alarm.
On the basis of the above detailed description of the various embodiments corresponding to the monitoring device of the equipment fan, the invention also discloses a monitoring method, equipment and a computer readable storage medium of the equipment fan corresponding to the above device.
The monitoring method of the equipment fan provided by the invention comprises the following steps:
when the fan rotating speed of a fan module of the equipment is smaller than a fan rotating speed threshold value, judging whether the fan rotating speed is not zero and a fan in-place signal of the fan module is in place or not;
if yes, a fan fault alarm is not triggered;
if not, triggering a fan fault alarm.
Further, the non-zero fan rotation speed is specifically:
the PWM wave output by the PWM driving circuit of the fan module is not zero.
Further, the method for monitoring the equipment fan provided by the invention further comprises the following steps:
and recording a fan fault log of the fan module according to the rotating speed of the fan and the on-site signal of the fan.
The monitoring method for the device fan provided by the present invention may be executed based on the BMC chip, may also be executed based on other processing modules, or may be executed by being distributed among a plurality of processing modules, which is not limited in the embodiment of the present invention.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
The above provides a detailed description of the monitoring method and the monitoring device for the equipment fan provided by the invention. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The method disclosed by the embodiment corresponds to the device disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. The monitoring device of the equipment fan is characterized by comprising a fan rotating speed detection device, a signal detection circuit and an alarm module;
the fan rotating speed detection device is arranged on a fan module of equipment, a first receiving end of the signal detection circuit is connected with the fan rotating speed detection device, a second receiving end of the signal detection circuit is connected with a fan in-place signal end of the fan module, and an output end of the signal detection circuit is connected with the alarm module;
the signal detection circuit is used for controlling the alarm module to carry out fan fault alarm when the fan rotation speed detection device detects that the rotation speed of the fan module is zero and/or the fan module is determined not to be in place according to the fan in-place signal end.
2. The monitoring device according to claim 1, wherein the fan speed detection device is specifically a PWM driving circuit of the fan module;
correspondingly, the specific step that the signal detection circuit detects that the rotating speed of the fan module is zero according to the fan rotating speed detection device is as follows:
and the signal detection circuit determines that the rotating speed of the fan module is zero when the PWM wave output by the PWM driving circuit is zero.
3. The monitoring device according to claim 2, wherein the signal detection circuit comprises in particular an and-gate circuit and a signal processor;
the first receiving end of the AND gate circuit is connected with the PWM driving circuit, the second receiving end of the AND gate circuit is connected with the fan in-place signal end, the output end of the AND gate circuit is connected with the receiving end of the signal processor, and the output end of the signal processor is connected with the alarm module;
and the signal processor is used for controlling the alarm module to carry out fan fault alarm when the output of the AND gate circuit is zero.
4. The monitoring device according to claim 2, wherein the signal detection circuit comprises in particular an and-gate circuit and a signal processor;
the first receiving end of the AND-gate circuit is connected with the PWM driving circuit, the second receiving end of the AND-gate circuit is connected with the fan in-place signal end, the output end of the AND-gate circuit is connected with the first receiving end of the signal processor, the second receiving end of the signal processor is connected with the fan fault output end of the BMC chip of the equipment, and the output end of the signal processor is connected with the alarm module;
and the signal processor is used for controlling the alarm module to alarm the fan fault when the output signal of the fan fault output end is equal to the output signal of the AND gate circuit.
5. Monitoring device according to claim 1, wherein the fan speed detection means is in particular a speed sensor.
6. The monitoring device of claim 1, wherein a third receiving end of the signal detection circuit is connected to a fan failure output end of a BMC chip of the apparatus, and an output end of the signal detection circuit is further connected to a receiving end of the BMC chip;
the BMC chip is used for recording fan fault logs according to the detected rotating speed of the fan module and the output signal of the signal detection circuit.
7. The monitoring device of claim 1, wherein the alarm module comprises an LED indicator light.
8. A method of monitoring an appliance fan, comprising:
when the fan rotating speed of a fan module of the equipment is smaller than a fan rotating speed threshold value, judging whether the fan rotating speed is not zero and the fan on-position signal of the fan module is on position or not;
if yes, a fan fault alarm is not triggered;
and if not, triggering the fan fault alarm.
9. The monitoring method according to claim 8, wherein the fan speed is not zero, in particular:
and the PWM wave output by the PWM driving circuit of the fan module is not zero.
10. The monitoring method of claim 8, further comprising:
and recording a fan fault log of the fan module according to the fan rotating speed and the fan in-place signal.
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| CN201911332534.3A CN111124827B (en) | 2019-12-22 | 2019-12-22 | Monitoring device and monitoring method for equipment fan |
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| CN201911332534.3A CN111124827B (en) | 2019-12-22 | 2019-12-22 | Monitoring device and monitoring method for equipment fan |
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| CN113606176A (en) * | 2021-07-23 | 2021-11-05 | 苏州浪潮智能科技有限公司 | Fan running state detection method and device |
| CN115047953A (en) * | 2022-04-30 | 2022-09-13 | 苏州浪潮智能科技有限公司 | Server heat dissipation method, system, device and medium |
| CN115047953B (en) * | 2022-04-30 | 2023-08-08 | 苏州浪潮智能科技有限公司 | Server heat dissipation method, system, device and medium |
| CN117750738A (en) * | 2024-02-19 | 2024-03-22 | 山东博舜电源有限公司 | Safety alarm feedback control method for power supply device |
| CN117750738B (en) * | 2024-02-19 | 2024-05-03 | 山东博舜电源有限公司 | Safety alarm feedback control method for power supply device |
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