CN109763992B - Service life early warning method and device for equipment fan - Google Patents
Service life early warning method and device for equipment fan Download PDFInfo
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- CN109763992B CN109763992B CN201910252862.6A CN201910252862A CN109763992B CN 109763992 B CN109763992 B CN 109763992B CN 201910252862 A CN201910252862 A CN 201910252862A CN 109763992 B CN109763992 B CN 109763992B
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
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Abstract
The application provides a service life early warning method and a service life early warning device for early warning that the service life of an equipment fan is about to end, so that equipment failure caused by the end of the service life of the equipment fan is avoided, and the method comprises the following steps: selecting one fan from the fan group of the equipment as a target fan; turning off the target fan, and performing the following test operations on the target fan: acquiring power supply parameters of the target fan, and electrifying the target fan based on the power supply parameters; if the rotating speed of the target fan is less than the preset rotating speed, early warning the service life of the target fan; and after the test operation is finished, reselecting one fan as a target fan, and executing the test operation until the test of the fan group is finished.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a service life early warning method and device for a device fan.
Background
On complex electronic equipment, because the power consumption of a chip is high, a fan is generally required to be configured to perform air cooling heat dissipation on the equipment so as to ensure that the temperature of the chip is within a safe range when the equipment runs. However, in the use process of the equipment, along with the volatilization of grease in the bearing of the fan and the abrasion of the bearing in the high-speed operation process of the fan, the rotation resistance of the fan is increased, the service life of the fan is finally ended, and if the fan is not replaced in time before the service life of the fan is ended, the heat dissipation of the equipment is affected, so that the equipment is in failure.
Disclosure of Invention
In view of this, the present application provides a method and an apparatus for early warning a service life of an equipment fan, so as to early warn that the service life of the equipment fan will end, thereby avoiding an equipment failure caused by the end of the service life of the equipment fan.
In a first aspect, the present application provides a service life early warning method for an equipment fan, where the method includes:
selecting one fan from the fan group of the equipment as a target fan;
turning off the target fan, and performing the following test operations on the target fan:
acquiring power supply parameters of the target fan, and electrifying the target fan based on the power supply parameters;
if the rotating speed of the target fan is less than the preset rotating speed, early warning the service life of the target fan;
and after the test operation is finished, reselecting one fan as a target fan, and executing the test operation until the test of the fan group is finished.
According to the method, in the process of testing the target fan, the power supply parameter of the target fan is obtained firstly, the target fan is electrified based on the power supply parameter, and if the rotating speed of the target fan is lower than the preset rotating speed, the service life of the target fan is early warned, so that maintenance personnel can be reminded in advance that the service life of the equipment fan is ended, and further equipment failure caused by the fact that the service life of the equipment fan cannot be replaced in time when the service life of the equipment fan is ended can be avoided.
In a possible implementation manner, if the rotation speed of the target fan is less than a preset rotation speed, performing early warning on the service life of the target fan includes:
if the rotating speed of the target fan is zero, performing first-stage early warning on the target fan;
and if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, performing second-stage early warning on the target fan, wherein the level of the second-stage early warning is lower than that of the first-stage early warning.
In the method, service life early warning is carried out in a grading mode, if the rotating speed of a target fan is zero, first-stage early warning is carried out on the target fan, if the rotating speed of the target fan is larger than zero and smaller than a preset rotating speed, second-stage early warning with the early warning level lower than that of the first-stage early warning is carried out on the target fan, so that equipment maintenance personnel can know the approximate time when the equipment is away from the end of the service life, and the fan can be replaced in time.
In a possible implementation, the method further includes:
if the rotating speed of the target fan is zero, marking the target fan by adopting a first mark;
if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, marking the target fan by adopting a second mark, wherein the second mark is used for marking the fan which is preferentially tested when the fan set is tested next time;
and after the testing of all the fans in the fan group is finished, outputting the serial numbers of the fans corresponding to the first marks.
In the method, fan classification needing early warning is marked, and after testing of all fans of the equipment is completed, the serial number of the fan corresponding to the first mark (namely the serial number of the fan with high early warning level) is output to remind maintenance personnel to replace the fan in time; in addition, when the fans of the fan group are tested next time, the fans which are most likely to break down are preferentially tested, so that the timeliness of test early warning is improved.
In a possible implementation, the power parameter is a minimum starting voltage;
after the early warning of the service life of the target fan, the method further comprises:
acquiring rated voltage for enabling the target fan to operate at full rotation speed;
and supplying power to the target fan at the rated voltage.
According to the method, after the service life of the target fan is warned, the target fan is powered by rated voltage so as to continuously operate, and therefore the heat dissipation of equipment is not affected.
In a possible implementation, the power parameter is a lowest Pulse Width Modulation (PWM) duty ratio;
after the early warning of the service life of the target fan, the method further comprises:
acquiring a PWM signal containing a PWM duty ratio for enabling the target fan to operate at full rotation speed;
controlling the rotation speed of the target fan based on the PWM signal.
According to the method, after the service life of a target fan is warned, the rotating speed of the target fan is controlled based on a PWM signal containing a PWM duty ratio enabling the target fan to operate at the full rotating speed, so that the target fan can operate continuously, and therefore heat dissipation of equipment can not be affected.
In a second aspect, an embodiment of the present application further provides a device for warning a service life of an equipment fan, where the device includes a module configured to execute the method for warning a service life of an equipment fan in the first aspect or any possible implementation manner of the first aspect.
Drawings
Fig. 1 is a schematic flowchart of a method for warning a service life of an equipment fan according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a service life early warning device of an equipment fan according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, an embodiment of the present application provides a service life early warning method for an equipment fan, where the method may include the following steps:
s101, selecting one fan from the fan group of the equipment as a target fan.
For a device, a plurality of fans are generally disposed in a fan group to dissipate heat, so as to meet the heat dissipation requirement of the device. Wherein each fan in the fan set is provided with a number for positioning a fan.
When the device selects a fan from the fan group as a target fan, the selection may be performed in a preset order, for example, 12 fans are included in the fan group, which are respectively labeled as 1-12, and the selection may be performed in an order from small to large. The fan No. 1 is first set as the target fan.
Performing the following test operations on the target fan:
and S102, turning off the target fan.
The power supply of the selected target fan is cut off to stop the operation of the target fan.
S103, obtaining power supply parameters of the target fan, and electrifying the target fan based on the power supply parameters.
And S104, if the rotating speed of the target fan is less than the preset rotating speed, early warning is carried out on the service life of the target fan.
And if the rotating speed of the target fan is greater than the preset rotating speed, the target fan is considered to be normal, no early warning is needed, and the target fan is recovered to a normal working state. And returning to the step S101 to reselect one fan as the target fan to carry out the test operation.
And acquiring a power supply parameter of the target fan according to the number of the target fan, wherein the power supply parameter is used for restarting the fan to determine whether the service life of the fan is damaged or not, and the judgment mode is that the rotating speed of the fan is detected when the fan is started after the fan is started based on the power supply parameter. In the working process of the fan, the rotating speed is reduced due to factors such as abrasion and the like, and when the fan works stably under rated voltage, the reduction of the rotating speed is not obvious and is difficult to judge. However, when the fan is started, since a steady state is not formed, the influence of the wear on the rotation speed is more prominent, and therefore, the judgment is made by firstly turning off the fan and then starting the fan.
The power supply parameters stored for the fan are different based on the control form of the fan, and the power supply parameters can be values obtained when the equipment is tested in the early stage and are prestored in the equipment for use by the equipment. Alternatively, in the case of speed regulation by voltage value, the power supply parameter may be a minimum starting voltage, for example, the rated voltage of the fan may be 12V, and the minimum starting voltage may be 5V; alternatively, in the case of speed regulation by digital pulse signals, the power supply parameter may be the lowest pulse width modulated PWM duty cycle, for example 80% of the rated PWM duty cycle of the fan and 30% of the lowest PWM duty cycle.
If the target fan fails to reach the preset rotation speed, it may be considered that the target fan has been worn to some extent, and the continued operation may cause the target fan to suddenly stop. Because many fans can be contained in the fan set, the problem of abrasion exists, if the fan set is left to work continuously, the condition that the fans stop working respectively exists, so that the overall heat dissipation requirement of the equipment cannot be met, the fans are replaced one by one for a period of time, the problems of equipment overheating and the like exist in the period of time, and the running reliability of the equipment is reduced.
When the rotating speed of the target fan started under the determined power supply parameters is smaller than the preset rotating speed, outputting early warning based on the number 1 corresponding to the target fan to prompt a worker, wherein the service life of the fan corresponding to the number 1 is obviously shortened.
And after the test operation is completed, reselecting one fan as the target fan, and executing the test operation until the test of the fan group is completed, namely, restarting to execute the steps of S101-S104.
And after the test for one fan is finished, selecting one fan as the target fan again, and repeatedly executing the test operation until all the fans are tested. At the moment, the worker can replace the fan in advance according to the condition of equipment early warning, so that equipment faults caused by the fact that a large number of fans stop working in a short time are avoided.
In order to avoid influencing the heat dissipation of the equipment when the fans in the fan set are tested. Further, after the service life of the target fan is warned, the method further comprises the following steps:
acquiring rated voltage for enabling the target fan to operate at full speed, and supplying power to the target fan at the rated voltage; or,
and acquiring a PWM signal containing a PWM duty ratio for enabling the target fan to operate at the full rotation speed, and controlling the rotation speed of the target fan based on the PWM signal.
Because, in the process of testing the fan set, the fan is inevitably required to be turned off, and when the test is carried out based on the power supply parameter, the rotating speed of the fan is lower than the rotating speed of the normal operation of the fan. Then, after testing a fan, the normal operation of the fan needs to be recovered to avoid the problem of the reduction of the heat dissipation effect during the period between the early warning and the replacement. Of course, for a normal fan with a rotation speed greater than the preset rotation speed, this step is also required to be executed to make the fan return to normal operation.
At this time, the device may supply power to the target fan according to the obtained rated voltage (relative to the case that the power parameter is the lowest operating voltage), or the PWM duty ratio of full-speed operation (relative to the case that the power parameter is the lowest PWM duty ratio), so that the target fan returns to the normal operating state after the test.
For S104 in the above test operation, further, a hierarchical early warning mode may be adopted to refine the early warning mode, so that the early warning of the device for the fan is more accurate, including:
if the rotating speed of the target fan is zero, performing first-stage early warning on the target fan;
and if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, performing second-stage early warning on the target fan, wherein the level of the second-stage early warning is lower than that of the first-stage early warning.
In the process of test operation, when detecting that the target fan is started according to the power supply parameters and the rotating speed is zero, the target fan can be confirmed to be hard to continue working due to abrasion, first-stage early warning is carried out, workers are directly informed of the fact that the fan needs to be replaced as soon as possible. At this time, the first mark can be performed on the fan in the first-stage early warning, and the number corresponding to the first mark is output once every certain time, for example, 1 hour, so that the early warning is performed once, and the situation that a worker forgets to replace the fan due to negligence is avoided.
When the target fan is detected to be started according to the power supply parameters and the rotating speed is greater than zero but less than the preset rotating speed, the target fan can still work for a period of time, and the target fan is not critical and is not required to be replaced temporarily. At this time, a second-level pre-warning may be performed, the level of which is lower than the level of the first-level pre-warning.
Further, a second mark can be marked on the fan of the second-stage early warning, and the device can store the corresponding relation between the second mark and the fan number. And if the test operation of all the fans of the fan group is performed according to a certain period, after the test operation is completed, the equipment stores the corresponding relation between the second mark and the fan number. Because these fans have appeared certain wearing and tearing, reach the ground step that needs to be changed, but the degree that probably reaches first grade early warning after a period of time of operation again, consequently, when next test operation begins, the fan by second sign mark is tested by priority to promote the effect of test and early warning.
Based on the same inventive concept, the embodiment of the present application further provides a service life early warning device for an equipment fan, referring to fig. 2, where the device includes:
a selection module 10, configured to select one fan from the fan group of the device as a target fan; (ii) a
A test early warning module 11, configured to perform the following test operations on the target fan: turning off the target fan, obtaining power supply parameters of the target fan, and electrifying the target fan based on the power supply parameters; if the rotating speed of the target fan is less than the preset rotating speed, early warning the service life of the target fan;
the selection module 10 is further configured to reselect a fan as a target fan after the test operation is completed, and execute the test operation until the test of the fan group is completed.
In a possible implementation manner, the test early warning module 11 may specifically be configured to, when executing the early warning on the service life of the target fan if the rotation speed of the target fan is less than a preset rotation speed:
if the rotating speed of the target fan is zero, performing first-stage early warning on the target fan;
and if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, performing second-stage early warning on the target fan, wherein the level of the second-stage early warning is lower than that of the first-stage early warning.
In a possible implementation manner, the test early warning module 11 is further configured to mark the target fan with a first mark if the rotation speed of the target fan is zero; if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, marking the target fan by adopting a second mark, wherein the second mark is used for marking the fan which is preferentially tested when the fan set is tested next time; and after the testing of all the fans in the fan group is finished, outputting the serial numbers of the fans corresponding to the first marks.
In one possible implementation, the power supply parameter may be a minimum starting voltage;
the test early warning module 11 is further configured to obtain a rated voltage for enabling the target fan to operate at a full rotation speed after the service life of the target fan is early warned, and supply power to the target fan at the rated voltage.
In another possible implementation, the power supply parameter is the lowest PWM duty cycle;
the test early warning module 11 is further configured to obtain a PWM signal including a PWM duty ratio for enabling the target fan to operate at a full rotation speed after early warning is performed on the service life of the target fan, and control the rotation speed of the target fan based on the PWM signal.
The implementation process of the functions and actions of each unit in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A service life early warning method for a device fan is characterized by comprising the following steps:
selecting one fan from the fan group of the equipment as a target fan;
performing the following test operations on the target fan:
turning off the target fan;
acquiring a power parameter of the target fan, wherein the power parameter is the lowest starting voltage or the lowest Pulse Width Modulation (PWM) duty ratio;
powering up the target fan based on the power supply parameter; if the rotating speed of the target fan is less than the preset rotating speed, early warning the service life of the target fan;
and after the test operation is finished, reselecting one fan as a target fan, and executing the test operation until the test of the fan group is finished.
2. The method of claim 1, wherein the warning of the service life of the target fan if the rotation speed of the target fan is less than a preset rotation speed comprises:
if the rotating speed of the target fan is zero, performing first-stage early warning on the target fan;
and if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, performing second-stage early warning on the target fan, wherein the level of the second-stage early warning is lower than that of the first-stage early warning.
3. The method of claim 2, further comprising:
if the rotating speed of the target fan is zero, marking the target fan by adopting a first mark;
if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, marking the target fan by adopting a second mark, wherein the second mark is used for marking the fan which is preferentially tested when the fan set is tested next time;
and after the testing of all the fans in the fan group is finished, outputting the serial numbers of the fans corresponding to the first marks.
4. The method of any one of claims 1-3, wherein when the power supply parameter is a minimum startup voltage, after the pre-warning of the target fan's operational life, the method further comprises:
acquiring rated voltage for enabling the target fan to operate at full rotation speed;
and supplying power to the target fan at the rated voltage.
5. The method of any of claims 1-3, wherein when the power supply parameter is a lowest Pulse Width Modulation (PWM) duty cycle, after pre-warning of the target fan's life, the method further comprises:
acquiring a PWM signal containing a PWM duty ratio for enabling the target fan to operate at full rotation speed;
controlling the rotation speed of the target fan based on the PWM signal.
6. A service life early warning device of an equipment fan, characterized in that the device comprises:
the selection module is used for selecting one fan from the fan group of the equipment as a target fan;
the test early warning module is used for executing the following test operations on the target fan: turning off the target fan, obtaining power supply parameters of the target fan, and electrifying the target fan based on the power supply parameters; if the rotating speed of the target fan is less than the preset rotating speed, early warning the service life of the target fan; the power supply parameter is the lowest starting voltage or the lowest Pulse Width Modulation (PWM) duty ratio;
and the selection module is also used for reselecting one fan as the target fan after the test operation is finished, and executing the test operation until the test of the fan group is finished.
7. The apparatus of claim 6, wherein the test early warning module, when performing the early warning on the service life of the target fan if the rotation speed of the target fan is less than a preset rotation speed, is specifically configured to:
if the rotating speed of the target fan is zero, performing first-stage early warning on the target fan;
and if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, performing second-stage early warning on the target fan, wherein the level of the second-stage early warning is lower than that of the first-stage early warning.
8. The apparatus of claim 7, wherein the test and pre-warning module is further configured to mark the target fan with a first flag if the target fan has a zero speed; if the rotating speed of the target fan is greater than zero and less than the preset rotating speed, marking the target fan by adopting a second mark, wherein the second mark is used for marking the fan which is preferentially tested when the fan set is tested next time;
and after the testing of all the fans in the fan group is finished, outputting the serial numbers of the fans corresponding to the first marks.
9. The apparatus according to any one of claims 6 to 8,
the test early warning module is further configured to, when the power supply parameter is the lowest starting voltage, obtain a rated voltage for enabling the target fan to operate at full speed after early warning is performed on the service life of the target fan, and supply power to the target fan at the rated voltage.
10. The device according to any one of claims 6 to 8, wherein the test early warning module is further configured to, when the power parameter is a lowest Pulse Width Modulation (PWM) duty ratio, obtain a PWM signal including a PWM duty ratio for operating the target fan at a full rotation speed after early warning of a service life of the target fan, and control the rotation speed of the target fan based on the PWM signal.
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| CN201910252862.6A CN109763992B (en) | 2019-03-29 | 2019-03-29 | Service life early warning method and device for equipment fan |
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| CN201910252862.6A CN109763992B (en) | 2019-03-29 | 2019-03-29 | Service life early warning method and device for equipment fan |
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| CN109763992B true CN109763992B (en) | 2020-12-29 |
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| CN114320970B (en) * | 2021-12-31 | 2023-09-22 | 浪潮(北京)电子信息产业有限公司 | Fan abnormality early warning method, device, equipment and medium |
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