CN114184270A - Equipment vibration data processing method, device, equipment and storage medium - Google Patents
Equipment vibration data processing method, device, equipment and storage medium Download PDFInfo
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Abstract
The invention relates to the technical field of equipment vibration detection, in particular to an equipment vibration data processing method, device, equipment and storage medium. The method comprises the following steps: acquiring vibration data acquired by vibration sensors at all detection points of equipment to be detected, and generating a oscillogram corresponding to the vibration data acquired by each vibration sensor; and generating audio data according to the oscillogram for the user to auscultate the device to be detected. Through carrying out audio data's conversion processing to the vibration data that acquire, can effectively avoid the maintenance personal to cause the erroneous judgement to equipment running state in the environment that the sound is complicated to help maintenance personal directly perceived, accurate understanding equipment's operational aspect improves the accuracy of auscultation.
Description
Technical Field
The invention relates to the technical field of equipment vibration detection, in particular to an equipment vibration data processing method, device, equipment and storage medium.
Background
All mechanical and motion systems generate various vibrations, some of which reflect normal motion states of the systems, others reflect abnormal motion states of the systems (e.g., internal faults of the systems, unbalanced shaft connection, etc.), and if the vibration intensity of the equipment is too high, the normal operation of the equipment is affected, and even production accidents occur. Therefore, vibration detection is an important ring to predictively maintain system equipment. The equipment vibration usually can produce corresponding sound, and current equipment diagnosis can be judged through the sound that monitoring devices vibration produced, and to experienced maintenance personal, just can judge some operating condition of equipment through the sound of auscultation equipment vibration, can be called the auscultation of equipment. However, due to the complicated environment of the equipment site, there are often much environmental noises heard by the maintenance personnel, such as echoes in the factory, noises other than vibration of the equipment, etc., which directly affect the accuracy of auscultation of the equipment.
Disclosure of Invention
Therefore, the invention provides a method, a device, equipment and a storage medium for processing equipment vibration data, aiming at solving the technical problem that the auscultation judgment result is influenced by environmental noise in the auscultation process of workers.
In one aspect of the embodiments of the present invention, a method for processing device vibration data is provided, including: acquiring vibration data acquired by a vibration sensor at each detection point of equipment to be detected; generating a oscillogram corresponding to the vibration data acquired by each vibration sensor; and generating audio data according to the oscillogram, wherein the audio data is used for auscultation of the device to be detected by the user.
Preferably, the generating a waveform diagram corresponding to the vibration data collected by each vibration sensor includes: and restoring the vibration data from the digital signal to an analog signal of equipment vibration to obtain a waveform diagram of the vibration data.
Preferably, the generating audio data according to the waveform map includes: and sampling, quantizing and coding the analog signal to obtain the audio data.
Preferably, the sampling, quantizing and encoding the analog signal to obtain the audio data includes: sampling the analog signal by using a preset sampling frequency to obtain sampling data; quantizing the sampling data to obtain a quantized digital signal; and carrying out audio coding on the quantized digital signal to obtain an audio file, wherein the audio file is suitable for being played by an audio player.
Preferably, the quantized digital signal is a decimal quantized value, and the audio coding of the quantized digital signal includes: and converting the quantized digital signal into a binary square wave signal.
Preferably, the sampling frequency is an audio frequency that is audible to the human ear.
In another aspect of the present invention, there is also provided an apparatus for processing device vibration data, including: the acquisition module is used for acquiring vibration data acquired by the vibration sensors at all detection points of the equipment to be detected; the first generation module is used for generating a oscillogram corresponding to the vibration data acquired by each vibration sensor; and the second generation module is used for generating audio data according to the oscillogram, and the audio data is used for auscultation of the device to be detected by the user.
Preferably, the first generating module comprises: and the restoring unit is used for restoring the vibration data from the digital signal to an analog signal of equipment vibration to obtain a waveform diagram of the vibration data.
The present invention also provides a computer device comprising: the device comprises a memory and a processor, wherein the memory and the processor are mutually connected in a communication mode, the memory stores computer instructions, and the processor executes the computer instructions so as to execute the device vibration data processing method.
The present invention also provides a computer-readable storage medium storing computer instructions for causing the computer to execute the above-mentioned apparatus vibration data processing method.
The technical scheme of the invention has the following advantages:
1. the collected vibration data of the device to be detected are acquired, then a corresponding oscillogram is generated to obtain a corresponding analog signal, and then the oscillogram is used for generating audio data so as to be convenient for playing auscultation. In the invention, the equipment vibration data is directly converted into the audio data, so that the converted audio data does not contain the noise of the peripheral environment such as the field of the equipment to be detected, and compared with the mode of directly collecting the vibration audio of the equipment to be detected, the influence of the environmental noise is greatly reduced, thereby improving the accuracy of auscultation.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method for processing vibration data of a device according to embodiment 1 of the present invention;
FIG. 2 is a block diagram of a device vibration data processing apparatus according to embodiment 2 of the present invention;
fig. 3 is a schematic block diagram of a computer device according to embodiment 3 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The technical scheme provided by the embodiment of the invention is mainly applied to the related field of equipment vibration detection, and the main purpose of carrying out vibration detection on the equipment under the normal condition is to judge whether the equipment is abnormal or not through equipment vibration data, namely to detect the running state of the equipment. In practical application, a vibration sensor is usually used to detect the vibration of the device, and the device in the embodiment of the present invention may be a motor device, a fan device, or the like, which is not particularly limited.
On the one hand, analyzing the vibration data of the device can determine the operating state of the device, which requires powerful data analysis software. On the other hand, the sound generated by the vibration during the operation of the device can also be used for the determination of the state of the device, so-called auscultation. The method for processing the vibration data of the equipment is mainly used for carrying out audio transformation on the vibration data of the equipment, so that more accurate audio data of a worker is provided, and the accuracy of auscultation of the worker on the equipment is improved.
Example 1
The embodiment provides an equipment vibration data processing method, which can be applied to a background server, and is used for processing vibration data acquired by a front end (including a vibration sensor and a collector), or can be used for directly acquiring the vibration data locally from a background. Specifically, as shown in fig. 1, the method comprises the following steps:
and S101, acquiring vibration data acquired by the vibration sensors at all detection points of the equipment to be detected.
The device to be detected can be a motor device, a fan device and the like which can generate vibration in the operation process, as described above. The embodiment is mainly used for processing the vibration data of the equipment to be detected, so that the audio data is provided to realize the auscultation of the equipment to be detected. Wherein, can set up a plurality of check points on waiting to examine equipment to and number, the check point is located the different positions of waiting to examine equipment respectively to set up vibration sensor on every check point. The vibration sensor can be an electric sensor, an eddy current sensor, an inductive sensor and the like which can be used for collecting vibration signals. That is, the vibration conditions of different parts of the device to be tested are detected by using the vibration sensor. The vibration sensor may detect vibrations in a plurality of directions of the corresponding detection point, for example, an X-axis, a Y-axis, and a Z-axis.
Typically, the signal of the device vibration detected by the vibration sensor is an analog signal. And then the digital signal is sent to a collector for analog-to-digital conversion to obtain a digital signal, and then the digital signal is sent to a background. In the embodiment of the invention, the vibration data refers to data corresponding to the processed digital signal.
Acquiring vibration data may refer to locally storing vibration data by software installed on a background server; or vibration data sent back by the front end.
Step S102, generating a waveform diagram corresponding to the vibration data collected by each vibration sensor.
As described in the foregoing implementation steps, the vibration data collected by the vibration sensor is data corresponding to the processed digital signal, and the digital signal cannot be directly converted into an audio signal, because different audio signals or audio files have their inherent frequencies, especially audio that can be heard by human ears, the embodiment needs to convert the vibration data from the digital signal into an analog waveform diagram, that is, an analog signal, and then convert the analog waveform diagram into the audio data. Specifically, three steps of sampling, quantizing and encoding are usually required in the process of converting the analog signal into the digital signal, the frequency of the converted digital signal may not be the frequency between 20HZ and 20kHz audible by the human ear, if it is ensured that the vibration data can be within the frequency audible by the human ear, the vibration data needs to be converted into the analog signal of the device vibration again through digital-to-analog conversion, and the waveform diagram is the change curve of the analog signal after digital-to-analog conversion and is the whole change process from the device vibration to the vibration end.
The waveform diagram may refer to a state of a signal change, and is not specifically shown, but only used as an original waveform of the analog-to-digital conversion. And the display can be carried out in a curve mode, so that the operation is convenient for a user.
In the embodiment of the present invention, a corresponding waveform diagram is generated for the vibration data acquired by each vibration sensor, that is, each piece of vibration data corresponds to one waveform diagram, or each sensor corresponds to one waveform diagram.
Specifically, the process of generating the waveform map may be a process of converting a digital signal into an analog signal. The digital signal is a discrete signal and the analog signal is a continuous signal. In this embodiment, an interpolation algorithm may be used to perform interpolation calculation on the discrete vibration data, so as to obtain a continuous signal and form a waveform diagram in a curve form.
And S103, generating audio data according to the oscillogram, wherein the audio data is used for the auscultation of the device to be detected by the user.
As described in the above implementation steps, the waveform diagram is a variation curve of the analog signal after the digital signal is restored. In order to obtain a frequency that can be heard by the human ear, the analog signal needs to be sampled, quantized, and encoded again.
Since the highest frequency that can be perceived by the human ear is 20kHz, the analog signal is converted to audio data according to the sampling theorem at a sampling rate of at least 2 times the bandwidth, i.e. 40 kHz. In order to filter out more noise, the analog signal is often sampled at 44 kHz. After sampling, the sampled data is quantized, and the sampled signal is changed into a number with only a limited number of digits by rounding or truncating, that is, the continuously changed value of the analog signal is graded and quantized into a discrete decimal quantized value. After quantization, the quantized digital signal is audio-encoded, and the quantized signal of discrete amplitude is converted into binary, i.e. represented by a combination of 0 and 1, where "1" indicates presence of a pulse and "0" indicates absence of a pulse. And finally, converting the continuous analog signals into binary digital square wave signals, wherein the binary digital square wave signals obtained by conversion are digital signals of equipment vibration according with the human ear frequency, so that the audio players can be used for playing the signals conveniently.
Most modern audio data is stored in digital form, including computers, smart phones, recording devices, etc., and in order to enable the audio data to be heard by the human ear through the speakers of the terminal device, the digitized audio must be converted into analog signals. Therefore, the players, digital music players and personal computer sound cards commonly available in the market at present have digital-to-analog converters, and the audio data obtained by conversion in this embodiment may be in any commonly available audio format, including WAVE, MP3, MIDI, and the like.
In this embodiment, the corresponding audio format may be selected as needed, and then the audio data may be generated according to the frequency or processing procedure required by the audio format. After the audio data which accords with the human ear frequency is generated, the audio data can be automatically stored and displayed in a list of the terminal audio player according to the sequence of the detection points, and each detection point corresponds to a segment of audio data.
The user or maintenance personnel can selectively play the converted audio data through any one playing device of the terminal, and auscultate the equipment to be detected according to the played audio data to judge whether the equipment is in an abnormal state.
According to the embodiment of the invention, the collected vibration data of the equipment to be detected is acquired, then the corresponding oscillogram is generated to obtain the corresponding analog signal, and then the oscillogram is used for generating the audio data so as to be convenient for playing auscultation. In the invention, the equipment vibration data is directly converted into the audio data, so that the converted audio data does not contain the noise of the peripheral environment such as the field of the equipment to be detected, and compared with the mode of directly collecting the vibration audio of the equipment to be detected, the influence of the environmental noise is greatly reduced, thereby improving the accuracy of auscultation.
As an alternative implementation manner, in an embodiment of the present invention, in the step S102, the generating a waveform diagram corresponding to the vibration data acquired by each vibration sensor includes: and restoring the vibration data from the digital signal to an analog signal of equipment vibration to obtain a waveform diagram of the vibration data.
Specifically, in the embodiment of the present invention, before audio data conversion is performed, the vibration data is restored to an original analog signal, specifically, the vibration data may be decoded first, converted to binary data, then quantized, converted from the binary data to decimal, and then formed into discrete data according to a data sequence; and finally, calculating data between each discrete point through an interpolation algorithm, and finishing interpolation to obtain a continuous analog signal.
As an optional implementation manner, in an embodiment of the present invention, the generating audio data according to the waveform map includes: and sampling, quantizing and coding the analog signal to obtain the audio data.
Specifically, the sampling, quantizing, and encoding the analog signal to obtain the audio data includes:
and S1, sampling the analog signal by using a preset sampling frequency to obtain sampling data.
The sampling frequency is selected according to the audio frequency that can be heard by the human ear, and the sampling frequency is the frequency of sampling the analog signal obtained by the restoration, and specifically, the sampling frequency is the audio frequency that can be heard by the human ear. The sampling data belongs to discrete data, namely, continuous analog signals are discretized to obtain discrete data with the same change trend as the analog data, so that subsequent encoding processing is facilitated.
And S2, quantizing the sampling data to obtain a quantized digital signal.
Because the signal itself belongs to the physical quantity, the quantized value is obtained by quantizing the sampled data, that is, the signal is digitized, the signal is expressed by the number, and the quantized digital signal can be decimal or binary, which can be set according to the requirement. In the embodiment of the invention, the quantized digital signal is preferably based on decimal.
And S3, performing audio coding on the quantized digital signal to obtain an audio file, wherein the audio file is suitable for being played by an audio player.
The audio coding of the digital signal may be performed in accordance with a selected audio format, with different audio formats corresponding to different coding schemes. Further, the quantized digital signal is a decimal quantization value, and the audio coding is performed on the quantized digital signal, and includes: and converting the quantized digital signal into a binary square wave signal. Of course, in the embodiment of the present invention, the step of audio encoding may further include processing such as encoding a square wave signal, which belongs to the conventional technology in the art and is not described herein again.
In the embodiment of the invention, after sampling, quantizing and encoding the analog signal, the corresponding audio file which accords with the frequency that human ears can hear is obtained, and the audio file contains audio data which can be played, so that a user can play the audio file conveniently, and each detection point of the device to be detected is auscultated.
Example 2
This embodiment provides an apparatus vibration data processing apparatus, which can be used to execute the apparatus vibration data processing method of embodiment 1, and is used to acquire vibration data of a device to be detected, and can implement interconversion from an apparatus vibration analog signal to a digital signal and from the digital signal to the analog signal, so as to accurately and intuitively determine the overall vibration state of the device to be detected according to audio data.
Specifically, as shown in fig. 2, the apparatus includes the following modules:
the obtaining module 201 is configured to obtain vibration data collected by the vibration sensor at each detection point of the device to be detected.
The first generating module 202 is configured to generate a waveform diagram corresponding to the vibration data collected by each vibration sensor. Optionally, the first generating module comprises: and the restoring unit is used for restoring the vibration data from the digital signal to an analog signal of equipment vibration to obtain a waveform diagram of the vibration data.
And the second generating module 203 is configured to generate audio data according to the waveform diagram, where the audio data is used for the user to auscultate the device to be detected.
According to the embodiment of the invention, the collected vibration data of the equipment to be detected is acquired, then the corresponding oscillogram is generated to obtain the corresponding analog signal, and then the oscillogram is used for generating the audio data so as to be convenient for playing auscultation. In the invention, the equipment vibration data is directly converted into the audio data, so that the converted audio data does not contain the noise of the peripheral environment such as the field of the equipment to be detected, and compared with the mode of directly collecting the vibration audio of the equipment to be detected, the influence of the environmental noise is greatly reduced, thereby improving the accuracy of auscultation.
For the detailed description of the above device part, reference may be made to the above method embodiments, which are not described herein again.
Example 3
The present embodiment provides a computer device, and as shown in fig. 3, the present embodiment provides a computer device, which includes a processor 301 and a memory 302, wherein the processor 301 and the memory 302 may be connected by a bus or other means.
The memory 302 is a non-transitory computer readable storage medium, and can be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules (the acquiring module 201, the first generating module 202, and the second generating module 203 shown in fig. 2) corresponding to the device vibration data processing method in the embodiment of the present invention. The processor 301 executes various functional applications and data processing of the processor by running non-transitory software programs, instructions and modules stored in the memory 302, that is, implements the device vibration data processing method in the above-described method embodiment 1.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 301, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 302 may optionally include memory located remotely from the processor 301, which may be connected to the processor 301 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 302 and, when executed by the processor 301, perform a device vibration data processing method as in the embodiment shown in fig. 1.
In the present embodiment, the memory 302 stores program instructions or modules of the device vibration data processing method, and when the processor 301 executes the program instructions or modules stored in the memory 302, when the vibration state (i.e. vibration data) of the detected device changes, the waveform diagram generated by the vibration data also changes correspondingly under the action of the first generating module stored in the memory 302, so that the audio data converted from the analog signal into the digital signal forms new audio data. The real-time auscultation of the running state of the equipment to be detected can be accurately and visually carried out through the audio data.
Embodiments of the present invention further provide a non-transitory computer storage medium, where computer-executable instructions are stored in the computer storage medium, and the computer-executable instructions may execute the method for processing the device vibration data in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A method for processing vibration data of a device, comprising:
acquiring vibration data acquired by a vibration sensor at each detection point of equipment to be detected;
generating a oscillogram corresponding to the vibration data acquired by each vibration sensor;
and generating audio data according to the oscillogram, wherein the audio data is used for auscultation of the device to be detected by the user.
2. The device vibration data processing method according to claim 1, wherein the generating a waveform map corresponding to the vibration data collected by each vibration sensor comprises:
and restoring the vibration data from the digital signal to an analog signal of equipment vibration to obtain a waveform diagram of the vibration data.
3. The device vibration data processing method according to claim 2, wherein the generating audio data from the waveform map includes:
and sampling, quantizing and coding the analog signal to obtain the audio data.
4. The device vibration data processing method according to claim 3, wherein the sampling, quantizing, and encoding the analog signal to obtain the audio data includes:
sampling the analog signal by using a preset sampling frequency to obtain sampling data;
quantizing the sampling data to obtain a quantized digital signal;
and carrying out audio coding on the quantized digital signal to obtain an audio file, wherein the audio file is suitable for being played by an audio player.
5. The apparatus vibration data processing method according to claim 3, wherein the quantized digital signal is a decimal quantized value, and the audio-coding of the quantized digital signal comprises:
and converting the quantized digital signal into a binary square wave signal.
6. The device vibration data processing method according to claim 3, wherein the sampling frequency is an audio frequency that can be heard by human ears.
7. An apparatus vibration data processing device, comprising:
the acquisition module is used for acquiring vibration data acquired by the vibration sensors at all detection points of the equipment to be detected;
the first generation module is used for generating a oscillogram corresponding to the vibration data acquired by each vibration sensor;
and the second generation module is used for generating audio data according to the oscillogram, and the audio data is used for auscultation of the device to be detected by the user.
8. The device vibration data processing apparatus according to claim 7, wherein the first generation module includes:
and the restoring unit is used for restoring the vibration data from the digital signal to an analog signal of equipment vibration to obtain a waveform diagram of the vibration data.
9. A computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the device vibration data processing method according to any one of claims 1 to 6.
10. A computer-readable storage medium storing computer instructions for causing a computer to execute the apparatus vibration data processing method according to any one of claims 1 to 6.
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| CN114578744B (en) * | 2022-05-07 | 2022-07-29 | 武汉筑链智能科技有限公司 | Method and device for acquiring equipment operation data |
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