CN110107461B - Fan fault early warning method, device, equipment and computer readable storage medium - Google Patents
Fan fault early warning method, device, equipment and computer readable storage medium Download PDFInfo
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- CN110107461B CN110107461B CN201910429765.XA CN201910429765A CN110107461B CN 110107461 B CN110107461 B CN 110107461B CN 201910429765 A CN201910429765 A CN 201910429765A CN 110107461 B CN110107461 B CN 110107461B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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Abstract
The invention discloses a fan fault early warning method, which comprises the following steps: acquiring actual sound electric signals corresponding to each target component when the fan runs; calling reference sound electric signals corresponding to all target components from a preset database; wherein, the preset database prestores the corresponding relation between each component and each reference sound electrical signal; verifying each actual sound electric signal by using each reference sound electric signal to obtain a verification result; and when the abnormal component is determined to exist according to the verification result, performing early warning operation on the abnormal component. By applying the technical scheme provided by the embodiment of the invention, the cost of manpower and material resources is greatly saved, the risk of missed judgment is reduced, the replacement rate of mechanical parts is reduced, the downtime of the fan is reduced, and the operation and maintenance cost is saved. The invention also discloses a fan fault early warning device, equipment and a storage medium, and the fan fault early warning device, the equipment and the storage medium have corresponding technical effects.
Description
Technical Field
The invention relates to the technical field of new energy station equipment, in particular to a fan fault early warning method, a fan fault early warning device, fan fault early warning equipment and a computer readable storage medium.
Background
In the new energy comprehensive system, a fan mainly comprises mechanical parts and electrical parts, and when the fan has an electrical fault, the fan can be in an emergency shutdown state through a protection system. However, when mechanical parts are abnormal due to long-time operation or defects in an assembly process, such as friction and looseness, the protection system can act only when the mechanical parts are abraded or loosened to endanger the normal operation of the fan, the fan is stopped emergently, mechanical irreversible damage is caused, and hysteresis exists in protection.
At present, a fan is inspected by naked eyes to see whether mechanical faults such as abrasion, bolt looseness and the like occur, the fan is not allowed to climb in the running process of the fan according to the requirement of electric power safety regulations, and the state of the fan in the running process cannot be monitored. The regular inspection mode of visual observation has large investment cost of manpower and material resources, and meanwhile, the judgment of artificial subjective consciousness exists, so that the risk of missed judgment is caused. And the faults of the mechanical parts caused by the abrasion and the vibration of the mechanical parts are irreversible, the parts are often required to be replaced in the treatment process, and the defects of long stop time of the fan, increase of operation and maintenance cost and the like are caused.
In summary, how to effectively solve the problems of high cost of manpower and material resources, missed judgment risk, long downtime, high operation and maintenance cost and the like when a fan mechanical fault is judged by an artificial naked eye is a problem which needs to be solved by a person skilled in the art at present.
Disclosure of Invention
The invention aims to provide a fan fault early warning method, which greatly saves the cost of manpower and material resources, reduces the risk of missed judgment, reduces the replacement rate of mechanical parts, reduces the downtime of a fan and saves the operation and maintenance cost; another object of the present invention is to provide a fan fault warning device, a fan fault warning apparatus and a computer readable storage medium.
In order to solve the technical problems, the invention provides the following technical scheme:
a fan fault early warning method comprises the following steps:
acquiring actual sound electric signals corresponding to each target component when the fan runs;
calling a reference sound electric signal corresponding to each target component from a preset database; wherein, the preset database is prestored with the corresponding relation between each component and each reference sound electrical signal;
verifying each actual sound electrical signal by using each reference sound electrical signal to obtain a verification result;
and when determining that an abnormal component exists according to the verification result, performing early warning operation on the abnormal component.
In a specific embodiment of the present invention, acquiring actual sound electrical signals corresponding to each target component when the wind turbine operates includes:
acquiring actual sound electric signals corresponding to the target components respectively when the fan runs from a data acquisition card through LabVIEW software; the actual sound electric signals are acquired by the data acquisition card from sound detectors arranged in the preset range of the position of each target component.
In a specific embodiment of the present invention, acquiring, by LabVIEW software, from a data acquisition card, an actual acoustic electrical signal corresponding to each of the target components during operation of the fan, includes:
acquiring the actual sound electrical signal segment frequency respectively corresponding to each target component after the data acquisition card performs statistical analysis on each actual sound electrical signal acquired according to a preset acquisition frequency within a preset time period when a fan runs from the data acquisition card through LabVIEW software;
the method for calling the reference sound electric signals respectively corresponding to the target components from the preset database comprises the following steps:
calling a reference sound electric signal segmentation frequency range corresponding to each target component under the conditions of the preset time length and the preset acquisition frequency from a preset database; the preset database is pre-stored with the corresponding relation between each part and each reference sound electric signal subsection frequency range under the conditions of each preset time length and each preset acquisition frequency of the fan;
verifying each actual acoustic electrical signal by using each reference acoustic electrical signal, including:
and respectively checking the actual sound electric signal subsection frequency numbers by utilizing the reference sound electric signal subsection frequency number ranges.
In an embodiment of the present invention, after acquiring, by LabVIEW software, an actual acoustic electrical signal corresponding to each of the target components when the blower is running from the data acquisition card, the method further includes:
displaying each of the actual sound signals;
after the reference sound electric signal corresponding to each target component is called from a preset database, the method further comprises the following steps:
and displaying each reference sound electric signal through the LabVIEW software.
In an embodiment of the invention, each of the reference acoustic electrical signals is a standard acoustic electrical signal corresponding to each of the target components when the blower is in normal operation.
In a specific embodiment of the present invention, performing an early warning operation on the abnormal component includes:
and performing early warning operation of corresponding grade on the abnormal component according to the abnormal grade of the abnormal component.
A fan fault early warning device includes:
the signal acquisition module is used for acquiring actual sound electric signals corresponding to each target component when the fan runs;
the signal calling module is used for calling the reference sound electric signals corresponding to the target components from a preset database; wherein, the preset database is prestored with the corresponding relation between each component and each reference sound electrical signal;
the result obtaining module is used for verifying each actual sound electric signal by using each reference sound electric signal to obtain a verification result;
and the early warning module is used for carrying out early warning operation on the abnormal component when the abnormal component is determined to exist according to the verification result.
In a specific embodiment of the present invention, the signal obtaining module is a module that obtains, from a data acquisition card through LabVIEW software, when a fan runs, the data acquisition card statistically analyzes each actual sound electrical signal acquired at a preset acquisition frequency within a preset time period to obtain actual sound electrical signal segment frequencies respectively corresponding to each target component;
the signal calling module is a module for calling a reference sound electric signal segmentation frequency range corresponding to each target component under the conditions of the preset time length and the preset acquisition frequency from a preset database; the preset database is pre-stored with the corresponding relation between each part and each reference sound electric signal subsection frequency range under the conditions of each preset time length and each preset acquisition frequency of the fan;
the result obtaining module comprises a signal checking submodule, and the signal checking submodule is specifically a module for respectively checking each actual sound electrical signal segmentation frequency number by using each reference sound electrical signal segmentation frequency number range.
A fan fault early warning device comprising:
a memory for storing a computer program;
and the processor is used for realizing the steps of the fan fault early warning method when executing the computer program.
A computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the fan failure warning method as set forth above.
By applying the method provided by the embodiment of the invention, the actual sound electric signals corresponding to each target component when the fan runs are obtained, the corresponding relation between each component and each reference sound electric signal is pre-stored in the preset database, each reference sound electric signal corresponding to each target component is called from the preset database, each actual sound electric signal is verified by using each reference sound electric signal to obtain the verification result, whether an abnormal component exists is judged according to the verification result, and early warning operation is carried out when the abnormal component exists. Compared with the existing mode of judging the mechanical fault of the fan through visual observation, the method greatly saves the cost of manpower and material resources, reduces the risk of missing judgment, reduces the replacement rate of mechanical parts, reduces the shutdown time of the fan and saves the operation and maintenance cost.
Correspondingly, the embodiment of the invention also provides a fan fault early warning device, equipment and a computer readable storage medium corresponding to the fan fault early warning method, which have the technical effects and are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an implementation of a method for early warning of a fan fault according to an embodiment of the present invention;
FIG. 2 is a flowchart of another implementation of a fan fault early warning method according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a standard acoustic electrical signal corresponding to a component during normal operation of the fan;
FIG. 4 is a schematic diagram of an abnormal sound electrical signal corresponding to a component during abnormal operation of the fan;
FIG. 5 is a flowchart of another implementation of a fan fault warning method according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a frequency range of a standard sound electrical signal segment corresponding to a component when a fan operates normally;
FIG. 7 is a schematic diagram of a frequency range of abnormal sound electrical signal segments corresponding to a component in abnormal operation of a fan;
FIG. 8 is a block diagram of a fan failure warning device according to an embodiment of the present invention;
fig. 9 is a block diagram of a fan fault early warning device in an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
The first embodiment is as follows:
referring to fig. 1, fig. 1 is a flowchart of an implementation of a fan fault early warning method in an embodiment of the present invention, where the method may include the following steps:
s101: and acquiring actual sound electric signals corresponding to the target components when the fan runs.
In the running process of the fan of the comprehensive energy system, each part of the fan can send out sound signals, and the sound signals can be converted into electric signals through corresponding conversion devices, so that sound electric signals are obtained. The actual sound electric signals corresponding to target components such as a fan hub, a cabin, a tower bottom platform and the like during the operation of the fan can be obtained.
S102: and calling the reference sound electric signals corresponding to the target components from a preset database.
Wherein, the preset database prestores the corresponding relation between each component and each reference sound electrical signal.
A database in which the correspondence between each component and each reference acoustic electrical signal is stored may be preset, and the reference acoustic electrical signals corresponding to each target component may be retrieved from the preset database. The reference sound electrical signal may be a standard sound electrical signal corresponding to each target component when the fan operates normally, or an abnormal sound electrical signal corresponding to each target component when the fan operates abnormally.
S103: and verifying each actual sound electric signal by using each reference sound electric signal to obtain a verification result.
After the actual sound electrical signals respectively corresponding to the target components and the reference sound electrical signals respectively corresponding to the target components are obtained when the fan operates, the actual sound electrical signals can be verified by using the reference sound electrical signals, and a verification result is obtained. For example, when each reference acoustic electrical signal is a standard acoustic electrical signal corresponding to each target component when the fan normally operates, whether each actual acoustic electrical signal is the same as the corresponding reference acoustic electrical signal may be compared, and if each actual acoustic electrical signal is the same as the corresponding reference acoustic electrical signal, it is determined that each target component of the fan is in a normal operation state. When the reference acoustic electrical signals are abnormal acoustic electrical signals corresponding to target components when the fan operates abnormally, whether the actual acoustic electrical signals are the same as or similar to the corresponding reference acoustic electrical signals or not can be compared, and if the actual acoustic electrical signals are the same as the corresponding reference acoustic electrical signals, the target components of the fan are in an abnormal operation state.
S104: and when the abnormal component is determined to exist according to the verification result, performing early warning operation on the abnormal component.
When the abnormal component is determined to exist according to the verification result, the specific target component can be further analyzed to be abnormal, and the abnormal component is subjected to early warning operation so as to prompt operation and maintenance management personnel to take corresponding repair measures in time. Therefore, the mechanical parts of the fan can be found in time in the initial stages of abrasion, looseness and the like, and the operation and maintenance management personnel can carry out corresponding maintenance work on the mechanical parts of the fan, so that the damage of most parts is reduced, the operation and maintenance cost is reduced, and the operation reliability of the fan is improved. The early warning mode can be early warning in a way of flickering a preset indicator light, or can be early warning in a way of sending out a sound warning signal through a sound alarm.
By applying the method provided by the embodiment of the invention, the actual sound electric signals corresponding to each target component when the fan runs are obtained, the corresponding relation between each component and each reference sound electric signal is pre-stored in the preset database, each reference sound electric signal corresponding to each target component is called from the preset database, each actual sound electric signal is verified by using each reference sound electric signal to obtain the verification result, whether an abnormal component exists is judged according to the verification result, and early warning operation is carried out when the abnormal component exists. Compared with the existing mode of judging the mechanical fault of the fan through visual observation, the method greatly saves the cost of manpower and material resources, reduces the risk of missing judgment, reduces the replacement rate of mechanical parts, reduces the shutdown time of the fan and saves the operation and maintenance cost.
It should be noted that, based on the first embodiment, the embodiment of the present invention further provides a corresponding improvement scheme. In the following embodiments, steps that are the same as or correspond to those in the first embodiment may be referred to each other, and corresponding advantageous effects may also be referred to each other, which are not described in detail in the following modified embodiments.
Example two:
referring to fig. 2, fig. 2 is a flowchart of another implementation of a fan fault early warning method in an embodiment of the present invention, where the method may include the following steps:
s201: and acquiring actual sound electric signals corresponding to each target component when the fan runs from the data acquisition card through LabVIEW software.
The actual sound electric signals are acquired by a data acquisition card from sound detectors arranged in the preset range of the positions of the target components.
The sound detectors can be arranged in the preset range of the positions of the target components of the fan, if the sound detectors can be arranged on a hub of the fan, an engine room and a tower bottom platform respectively, the sound detectors are used for collecting actual sound signals of the target components when the fan runs, and the actual sound signals are converted into corresponding actual electric signals through the sound detectors, so that the actual sound electric signals are obtained. And a data acquisition card is arranged and is in communication connection with the sound detector, for example, the communication connection between the sound detector and the data acquisition card can be established through a BNC line, and the data acquisition card is utilized to acquire each actual sound electric signal from each sound detector. LabVIEW software can be deployed at the end of the control host in advance, the control host is connected with the data acquisition card, and actual sound electric signals corresponding to target components in the running process of the fan are acquired from the data acquisition card through the LabVIEW software.
S202: each actual sound signal is displayed.
After the actual sound electric signals corresponding to the target components when the fan runs are obtained, the actual sound signals can be displayed through a LabVIEW software interface.
S203: and calling the reference sound electric signals corresponding to the target components from a preset database.
The preset database is pre-stored with corresponding relations between each component and each reference sound electrical signal, and the reference sound electrical signals are standard sound electrical signals corresponding to each target component when the fan operates normally.
The standard sound electric signals corresponding to the target components during normal operation of the fan can be stored in a preset database in advance and serve as reference sound electric signals of the target components. The reference sound electrical signals corresponding to the target components can be retrieved from a preset database.
S204: each reference acoustic electrical signal is displayed by LabVIEW software.
After the reference acoustic electrical signals corresponding to the target components are retrieved, the reference acoustic electrical signals can be displayed by LabVIEW software. Fig. 3 is a schematic diagram of a standard sound electrical signal corresponding to a component when the fan is in normal operation. As can be seen from FIG. 3, when the fan normally operates, the voltage of each sampling point of the component is uniformly distributed between 0V and 4V.
In the running process of the fan, some parts are likely to be more prone to be abnormal than other parts, and in this case, abnormal sound electric signals respectively corresponding to target parts prone to be abnormal when the fan runs abnormally can be preset in the preset database to serve as reference sound electric signals. When the fact that the similarity between the sound electric signal generated by the target component in operation and the correspondingly set abnormal sound electric signal is high is detected, the target component can be judged to be abnormal quickly. Fig. 4 is a schematic diagram of an abnormal sound electrical signal corresponding to a component when the fan operates abnormally. It can be seen from fig. 4 that after the fan runs for a period of time, if a mechanical component in the hub or the nacelle rubs or vibrates violently, the voltage of each corresponding sampling point changes suddenly with violent abnormal sound.
S205: and verifying each actual sound electric signal by using each reference sound electric signal to obtain a verification result.
S206: and when the abnormal component is determined to exist according to the verification result, performing early warning operation of the corresponding grade on the abnormal component according to the abnormal grade of the abnormal component.
When the abnormal component is determined to exist according to the verification result, the abnormal level of the abnormal component can be further determined, for example, the current abnormal level of the abnormal component can be determined according to the difference between the actual sound electric signal of the abnormal component and the preset reference sound electric signal. And the corresponding relation between each abnormal grade and each early warning grade can be preset so as to carry out early warning operation of corresponding grade on the abnormal component according to the abnormal grade of the abnormal component.
Example three:
referring to fig. 5, fig. 5 is a flowchart of another implementation of the method for early warning of a fan fault in the embodiment of the present invention, where the method may include the following steps:
s501: when the fan runs is acquired from the data acquisition card through LabVIEW software, the data acquisition card carries out statistical analysis on actual sound electric signals acquired according to preset acquisition frequency within preset time length to obtain actual sound electric signal segmentation frequency numbers respectively corresponding to target parts.
The collection frequency of the data collection card can be preset, the time length of the data collection card for collecting the sound electric signals of the fan can be preset, when the fan runs, the data collection card can collect actual sound electric signals corresponding to all target components within the preset time length according to the preset collection frequency, and the actual sound electric signals are subjected to statistical analysis, so that the actual sound electric signal segmentation frequency numbers corresponding to all the target components are obtained. Actual sound electrical signal segmentation frequency numbers corresponding to target components in the running process of the fan can be acquired from the data acquisition card through LabVIEW software.
S502: and calling the reference sound electric signal segment frequency range corresponding to each target component under the conditions of preset time length and preset acquisition frequency from a preset database.
The preset database is pre-stored with the corresponding relation between each part and each reference sound electric signal subsection frequency range under the conditions of each preset time length and each preset acquisition frequency of the fan.
The corresponding relation between each part and each reference sound electric signal subsection frequency range under each preset time length and each preset collection frequency condition of the fan can be stored in a preset database in advance. The reference sound electric signal segment frequency range corresponding to each target component under the conditions of the preset time length and the preset acquisition frequency can be called from a preset database.
It should be noted that the acquisition frequency and the preset time period may be set and adjusted according to actual situations, which is not limited in the embodiment of the present invention. If the collection frequency can be set to 6HZ, and the preset time duration is 10min, under this condition, as shown in fig. 6 and 7, fig. 6 is a schematic diagram of a standard sound electrical signal segment frequency range corresponding to a certain component when the fan normally operates, and fig. 7 is a schematic diagram of an abnormal sound electrical signal segment frequency range corresponding to a certain component when the fan abnormally operates. Therefore, the frequency distribution of the sampling points in each voltage interval during normal operation of the component and the frequency distribution of the sampling points in each voltage interval during abnormal operation of the component can be reflected.
S503: and respectively checking the actual segmentation frequency numbers of the sound electric signals by utilizing the segmentation frequency number ranges of the reference sound electric signals.
After the actual sound electrical signal segmentation frequency numbers respectively corresponding to each target component during the operation of the fan are obtained and the reference sound electrical signal segmentation frequency number ranges respectively corresponding to each target component are called, the actual sound electrical signal segmentation frequency numbers can be respectively checked by using the reference sound electrical signal segmentation frequency number ranges to obtain a checking result.
S504: and when the abnormal component is determined to exist according to the verification result, performing early warning operation on the abnormal component.
Corresponding to the above method embodiment, the embodiment of the invention also provides a fan fault early warning device, and the fan fault early warning device described below and the fan fault early warning method described above can be referred to correspondingly.
Referring to fig. 8, fig. 8 is a block diagram of a fan failure early warning apparatus in an embodiment of the present invention, where the apparatus may include:
the signal acquisition module 81 is used for acquiring actual sound electric signals corresponding to each target component when the fan runs;
a signal retrieving module 82, configured to retrieve, from a preset database, reference sound electrical signals corresponding to the target components, respectively; wherein, the preset database prestores the corresponding relation between each component and each reference sound electrical signal;
a result obtaining module 83, configured to verify each actual acoustic electrical signal by using each reference acoustic electrical signal, so as to obtain a verification result;
and the early warning module 84 is used for performing early warning operation on the abnormal component when the abnormal component is determined to exist according to the verification result.
By applying the device provided by the embodiment of the invention, the actual sound electric signals corresponding to each target component when the fan runs are obtained, the corresponding relation between each component and each reference sound electric signal is pre-stored in the preset database, each reference sound electric signal corresponding to each target component is called from the preset database, each actual sound electric signal is verified by using each reference sound electric signal to obtain a verification result, whether an abnormal component exists is judged according to the verification result, and early warning operation is carried out when the abnormal component exists. Compared with the existing mode of judging the mechanical fault of the fan through visual observation, the method greatly saves the cost of manpower and material resources, reduces the risk of missing judgment, reduces the replacement rate of mechanical parts, reduces the shutdown time of the fan and saves the operation and maintenance cost.
In a specific embodiment of the present invention, the signal obtaining module 81 is specifically a module that obtains actual sound electrical signals corresponding to each target component when the fan runs from the data acquisition card through LabVIEW software; the actual sound electric signals are acquired by a data acquisition card from sound detectors arranged in the preset range of the positions of the target components.
In a specific embodiment of the present invention, the signal obtaining module 81 is specifically a module for obtaining, by LabVIEW software, the actual sound electrical signal segment frequency number corresponding to each target component, obtained by performing statistical analysis on each actual sound electrical signal collected according to a preset collection frequency within a preset time period by using a data collection card when the fan operates, from the data collection card;
the signal retrieving module 82 is specifically a module that retrieves, from a preset database, frequency ranges of the reference sound electrical signal segments respectively corresponding to the target components under the conditions of preset duration and preset acquisition frequency; the preset database is pre-stored with the corresponding relation between each part and each reference sound electric signal subsection frequency range under the condition of each preset time length and each preset acquisition frequency of the fan;
the result obtaining module 83 includes a signal checking sub-module, which is specifically a module for checking each actual sound electrical signal segment frequency number by using each reference sound electrical signal segment frequency number range.
In one embodiment of the present invention, the apparatus may further include:
the display module is used for displaying each actual sound signal after acquiring the actual sound electrical signal corresponding to each target component when the fan runs from the data acquisition card through LabVIEW software;
and the display module is also used for displaying the reference sound electric signals through LabVIEW software after the reference sound electric signals corresponding to the target components are called from the preset database.
In an embodiment of the present invention, the early warning module 84 is specifically a module for performing a corresponding level of early warning operation on the abnormal component according to the abnormal level of the abnormal component.
Corresponding to the above method embodiment, referring to fig. 9, fig. 9 is a schematic diagram of a wind turbine fault early warning device provided by the present invention, where the device may include:
a memory 91 for storing a computer program;
the processor 92, when executing the computer program stored in the memory 91, may implement the following steps:
acquiring actual sound electric signals corresponding to each target component when the fan runs; calling reference sound electric signals corresponding to all target components from a preset database; wherein, the preset database prestores the corresponding relation between each component and each reference sound electrical signal; verifying each actual sound electric signal by using each reference sound electric signal to obtain a verification result; and when the abnormal component is determined to exist according to the verification result, performing early warning operation on the abnormal component.
For the introduction of the device provided by the present invention, please refer to the above method embodiment, which is not described herein again.
Corresponding to the above method embodiment, the present invention further provides a computer-readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the steps of:
acquiring actual sound electric signals corresponding to each target component when the fan runs; calling reference sound electric signals corresponding to all target components from a preset database; wherein, the preset database prestores the corresponding relation between each component and each reference sound electrical signal; verifying each actual sound electric signal by using each reference sound electric signal to obtain a verification result; and when the abnormal component is determined to exist according to the verification result, performing early warning operation on the abnormal component.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
For the introduction of the computer-readable storage medium provided by the present invention, please refer to the above method embodiments, which are not described herein again.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device, the apparatus and the computer-readable storage medium disclosed in the embodiments correspond to the method disclosed in the embodiments, so that the description is simple, and the relevant points can be referred to the description of the method.
The principle and the implementation of the present invention are explained in the present application by using specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention. 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.
Claims (7)
1. A fan fault early warning method is characterized by comprising the following steps:
acquiring the actual sound electrical signal segmentation frequency respectively corresponding to each target component after each actual sound electrical signal collected according to a preset collection frequency within a preset time length is subjected to statistical analysis by the data collection card when a fan runs from the data collection card through LabVIEW software;
calling a reference sound electric signal segmentation frequency range corresponding to each target component under the conditions of the preset time length and the preset acquisition frequency from a preset database; the preset database is pre-stored with the corresponding relation between each part and each reference sound electric signal subsection frequency range under the conditions of each preset time length and each preset acquisition frequency of the fan;
checking the actual sound electrical signal subsection frequency numbers respectively by utilizing the reference sound electrical signal subsection frequency number ranges to obtain checking results;
and when determining that an abnormal component exists according to the verification result, performing early warning operation on the abnormal component.
2. The method for early warning of the fan fault according to claim 1, wherein after acquiring the actual acoustic electrical signals corresponding to the target components respectively when the fan runs from the data acquisition card through LabVIEW software, the method further comprises:
displaying each actual sound electric signal;
after the reference sound electric signal corresponding to each target component is called from a preset database, the method further comprises the following steps:
and displaying each reference sound electric signal through the LabVIEW software.
3. The fan fault early warning method according to claim 2, wherein each of the reference acoustic electrical signals is a standard acoustic electrical signal corresponding to each of the target components when the fan is in normal operation.
4. The fan fault early warning method according to claim 1, wherein performing early warning operation on the abnormal component comprises:
and performing early warning operation of corresponding grade on the abnormal component according to the abnormal grade of the abnormal component.
5. The utility model provides a fan trouble early warning device which characterized in that includes:
the signal acquisition module is used for acquiring the actual sound electric signal segment frequency numbers which correspond to the target components respectively after the data acquisition card carries out statistical analysis on the actual sound electric signals acquired according to the preset acquisition frequency within the preset time length when the fan runs from the data acquisition card through LabVIEW software;
the signal calling module is used for calling a reference sound electric signal segmentation frequency range corresponding to each target component under the conditions of the preset time length and the preset acquisition frequency from a preset database; the preset database is pre-stored with the corresponding relation between each part and each reference sound electric signal subsection frequency range under the conditions of each preset time length and each preset acquisition frequency of the fan;
the result obtaining module is used for verifying the actual sound electric signal subsection frequency numbers respectively by utilizing the reference sound electric signal subsection frequency number ranges to obtain verification results;
and the early warning module is used for carrying out early warning operation on the abnormal component when the abnormal component is determined to exist according to the verification result.
6. The utility model provides a fan trouble early warning equipment which characterized in that includes:
a memory for storing a computer program;
a processor for implementing the steps of the method of any one of claims 1 to 4 when executing the computer program.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the wind turbine fault pre-warning method according to any one of claims 1 to 4.
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| CN202230176U (en) * | 2011-09-23 | 2012-05-23 | 上海市电力公司 | Remote directional online detection device used for power transmission and distribution line partial discharge detection |
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