CN117664413A - Electronic billboard monitoring system based on stress wave and application method - Google Patents
Electronic billboard monitoring system based on stress wave and application method Download PDFInfo
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Abstract
The invention provides an electronic billboard monitoring system based on stress wave and an application method thereof, wherein the system comprises a stress wave acquisition device, a rear-end server and a front-end display; the stress wave acquisition device is used for acquiring the stress wave energy value of the equipment to be monitored in real time and sending the stress wave energy value to the back-end server; the back-end server is used for receiving the stress wave energy value, counting the stress wave energy value, sequentially carrying out time domain analysis and frequency spectrum analysis on the stress wave energy value, judging the running state of the equipment to be monitored and sending the running state to the front-end display; the front-end display is used for displaying the running state of the equipment to be monitored and sending out abnormal early warning when the running state is abnormal. The equipment is monitored by collecting the stress wave energy value of the equipment and performing time domain analysis and frequency spectrum analysis on the stress wave energy value so as to determine whether the equipment has a fault problem, so that the efficiency and the accuracy of equipment fault monitoring are improved, and the unplanned downtime of the equipment can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of production management, in particular to an electronic billboard monitoring system based on stress waves and an application method.
Background
The equipment is an important element of the current social productivity development, and the stable and safe operation of the equipment is the premise of stable production of enterprises. However, as the demands and changes of customers are more and more, the quality requirements on products are higher and higher, so that whether the equipment is abnormal or not is found in advance, and the equipment faults are very necessary to be processed in time. In order to facilitate the monitoring of the production line by the manager, the production information of the product is mastered in real time, and at present, an electronic billboard monitoring system is already on the market, so that the visual management of the production line is realized, and the electronic billboard monitoring system is an effective and visual means for finding and solving problems and is one of the indispensable tools for monitoring the production line.
In the related art, the electronic billboard monitoring system still has the following disadvantages: 1. the real-time production information of the equipment in the production line and the billboard system are required to be manually input, and the production line generation state is displayed on the electronic billboard, so that the failure problem of the production equipment cannot be found in time; 2. for the defect of insufficient fault analysis capability according to production line operation data, the accuracy of the fault analysis result of production equipment cannot be ensured.
Disclosure of Invention
The invention aims to provide an electronic billboard monitoring system based on stress waves, which is used for solving the technical problems that the electronic billboard monitoring system in the prior art is not timely for monitoring the running state of equipment and is inaccurate in fault analysis; and a second aim is to provide an application method of the electronic billboard monitoring system based on stress waves.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides an electronic billboard monitoring system based on stress waves, the system comprising a stress wave acquisition device, a rear end server and a front end display; the stress wave acquisition device is used for acquiring the stress wave energy value of the equipment to be monitored in real time and sending the stress wave energy value to the back-end server; the back-end server is used for receiving the stress wave energy value, counting the stress wave energy value, sequentially carrying out time domain analysis and frequency spectrum analysis on the stress wave energy value, judging the running state of the equipment to be monitored, and sending the running state to the front-end display; the front-end display is used for displaying the running state of the equipment to be monitored and sending out abnormal early warning when the running state is abnormal.
In an embodiment of the present invention, the front-end display displays operation data of all devices to be monitored in a workshop, and the front-end display includes: the production line monitoring module is used for displaying the target position of each device to be monitored in the process flow chart, displaying the running state on the target position through a color block, and displaying the early warning statistical information of each device to be monitored through a histogram; the equipment overview module is used for displaying the total number of the equipment to be monitored, the total number of the first measuring points and the online rate of the measuring points in a workshop, and displaying the state color blocks, the total number of the second measuring points and the abnormal number of the measuring points of each piece of equipment to be monitored through a tag card, wherein the tag card and the equipment to be monitored are in one-to-one correspondence; the equipment detail module is used for displaying the total number of the second measuring points, the mechanical transmission structure schematic diagram and the stress wave energy value of each measuring point of the equipment to be monitored through the jump access of the tag card, and an energy time domain diagram and an energy frequency spectrum diagram in a preset time period; and the early warning management module is used for sending out the abnormal early warning when the running state of the equipment to be monitored in the workshop is abnormal, and displaying the specific equipment to be monitored and the specific measuring point corresponding to the abnormal early warning.
In an embodiment of the present invention, the stress wave collecting device includes a plurality of stress wave sensors and a plurality of stress wave collecting boxes, wherein each stress wave collecting box is connected with a plurality of stress wave sensors; the stress wave sensor is arranged on a transmission mechanism of the equipment to be monitored and used for collecting stress wave signals of the transmission mechanism and transmitting the stress wave signals to the stress wave collecting box, wherein at least one stress wave sensor is arranged on the equipment to be monitored; the stress wave collecting box is internally provided with a low-pass filter circuit and an energy value calculator, and is used for inputting the stress wave signal into the low-pass filter circuit for interference signal filtering, and inputting the filtered stress wave signal into the energy value calculator to obtain the stress wave energy value.
In an embodiment of the present invention, the backend server includes a database, a data driving module, a logic processing module, and an interface display module; the database is used for storing the stress wave energy values, wherein the database stores historical stress wave energy values and standard spectrograms of all the equipment to be monitored in the workshop; the data driving module is used for receiving the stress wave energy value, transmitting the stress wave energy value to the database for storage, acquiring a stress wave energy set and the standard spectrogram of a preset time period corresponding to the equipment to be monitored from the database, and transmitting the stress wave energy set and the standard spectrogram to the logic processing module; the logic processing module is used for generating an energy time domain diagram and an energy spectrogram according to the stress wave energy set, determining the running state according to the energy time domain diagram, the energy spectrogram and the standard time domain diagram and transmitting the running state to the interface display module; and the interface display module is used for sending the running state to the front-end display so that the front-end display can display the running state.
In an embodiment of the present invention, the logic processing module includes a data acquisition service, a data processing service, an early warning judging service and a first interface service; the data acquisition service is used for receiving the stress wave energy set and the standard spectrogram; the data processing service is used for sequencing all stress wave energy values in the stress wave energy concentration according to the acquisition time, generating the energy time domain graph, calculating the stress wave energy values in the stress wave energy concentration, and generating the energy spectrogram; the early warning judging service is used for sequentially carrying out trend analysis on the energy time domain diagram and carrying out spectrum comparison on the energy spectrogram and the standard spectrogram to determine the running state; the first interface service is configured to provide a first service interface for the front-end display, receive and parse a first HTTP request sent by the front-end display, and send the running state to the front-end display.
In an embodiment of the present invention, the early warning judgment service includes; the analysis unit is used for judging whether trend fluctuation of the energy time domain graph is stable or not according to a preset fluctuation range, if the trend fluctuation is stable, determining that the running state is normal, and if the trend fluctuation is strong, triggering the comparison unit to start for spectrum comparison; the comparison unit is used for comparing the frequency spectrum of the energy spectrogram with the standard spectrogram when the trend fluctuation of the energy time domain graph is strong, if the frequency spectrum is consistent, determining that the running state is normal, and if the frequency spectrum is inconsistent, determining that the running state is abnormal.
In an embodiment of the present invention, the device detail module further includes: and the query service is used for checking the historical stress wave energy value, the historical energy time domain graph and the historical energy spectrogram of each measuring point of the equipment to be monitored.
In an embodiment of the present invention, the system further includes a browser, and the front-end display further includes a second interface service; the browser is used for generating a second HTTP request for viewing the front-end display according to a query instruction of a user and sending the second HTTP request to the front-end display, wherein the second HTTP request carries a target viewing item of the user; the second interface service is configured to receive the second HTTP request from the browser, and provide device data corresponding to the target viewing item in response to the second HTTP request.
In a second aspect, the present invention also provides a method of application of an electronic billboard monitoring system based on stress waves, the method comprising: acquiring stress wave energy values of equipment to be monitored in real time; counting the stress wave energy values, and sequentially performing time domain analysis and frequency spectrum analysis; judging the running state of the equipment to be monitored according to the analysis result, and displaying the running state; and if the running state is abnormal, triggering an early warning function to send out abnormal early warning.
The invention has the beneficial effects that:
before production, the stress wave energy value of the equipment to be monitored is acquired in real time through the stress wave acquisition device, the stress wave energy value is sent to the rear end server, then the rear end server counts the stress wave energy value, time domain analysis and frequency spectrum analysis are sequentially carried out on the stress wave energy value, the running state of the equipment to be monitored is judged, the running state is sent to the front end display, finally, the running state of the equipment to be monitored is displayed through the front end display, and when the running state is abnormal, abnormal early warning is sent out for fault maintenance.
Drawings
FIG. 1 is a block diagram of an electronic billboard monitoring system based on stress waves, in accordance with an exemplary embodiment of the invention;
FIG. 2 is a block diagram of a specific stress wave based electronic billboard monitoring system in accordance with an exemplary embodiment of the invention;
FIG. 3 is a schematic diagram of a back-end server and a front-end display according to an exemplary embodiment of the present invention;
fig. 4 is a flow chart illustrating a method of application of a stress wave based electronic billboard monitoring system in accordance with an exemplary embodiment of the application.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and to which this invention belongs, and any method, apparatus, or material of the prior art similar or identical to the methods, apparatus, or materials of the embodiments of the invention may be used to practice the invention.
In production, it is necessary to find out whether the equipment is abnormal in advance and to process the equipment failure in time, which can effectively reduce the unplanned downtime of the equipment and effectively ensure the product quality. Electronic billboard monitoring systems have appeared in the current market, and visual management of production lines is realized, so that the electronic billboard monitoring systems are very effective and visual means for finding and solving problems, and are one of the indispensable tools for monitoring production lines. However, the inventor of the present application has found that the existing electronic billboard monitoring system still has the following disadvantages: 1. the real-time production information of the equipment in the production line and the billboard system are required to be manually input, and the production line generation state is displayed on the electronic billboard, so that the failure problem of the production equipment cannot be found in time; 2. for the defect of insufficient fault analysis capability according to production line operation data, the accuracy of the fault analysis result of production equipment cannot be ensured.
Accordingly, the present invention provides an electronic billboard monitoring system based on stress wave, please refer to fig. 1, fig. 1 is a block diagram of an electronic billboard monitoring system based on stress wave according to an exemplary embodiment of the present invention, as shown in fig. 1, the system 100 at least includes a stress wave collecting device 110, a back-end server 120 and a front-end display 130, and the following details are given:
the stress wave acquisition device 110 is configured to acquire a stress wave energy value of the device to be monitored in real time, and send the stress wave energy value to the back-end server 120.
Referring specifically to fig. 2, fig. 2 is a block diagram of a specific stress wave based electronic billboard monitoring system in accordance with an exemplary embodiment of the invention. As shown in fig. 2, the stress wave collecting device 110 includes a plurality of stress wave sensors and a plurality of stress wave collecting boxes, i.e. the collecting boxes and the sensors in fig. 2, wherein each stress wave collecting box is connected with a plurality of stress wave sensors; the stress wave sensor is arranged on a transmission mechanism of the equipment to be monitored and used for collecting stress wave signals of the transmission mechanism and transmitting the stress wave signals to the stress wave collecting box, wherein at least one stress wave sensor is arranged on the equipment to be monitored; the stress wave collecting box is internally provided with a low-pass filter circuit and an energy value calculator, and is used for inputting stress wave signals into the low-pass filter circuit to filter interference signals, and inputting the filtered stress wave signals into the energy value calculator to obtain stress wave energy values.
It should be noted that the stress wave collecting box has a plurality of interfaces, and can be connected with a plurality of stress wave sensors, and the stress wave sensors are arranged on the transmission mechanism of the equipment to be monitored, so that at least one stress wave sensor is arranged on the equipment to be monitored, and each stress wave sensor collects the stress wave signals of the corresponding transmission mechanism.
In addition, filtering of interference signals, such as denoising, using a low-pass filter circuit is a well-established technique, and the specific filtering method of interference signals is not described in further detail herein. The stress wave sensor of the equipment to be monitored, which is acquired by the stress wave sensor, is filtered by the low-pass filter circuit arranged in the stress wave acquisition box, so that the operation state of the equipment to be monitored is judged by utilizing the filtered stress wave signal, and the accuracy of the judgment of the operation state can be improved.
With continued reference to fig. 2, in one possible embodiment, the stress wave acquisition box communicates with the back-end server 120 based on the HTTP (Hypertext Transfer Protocol ) protocol.
The back-end server 120 is configured to receive the stress wave energy value, count the stress wave energy value, perform time-domain analysis and spectrum analysis on the stress wave energy value in sequence, determine an operation state of the device to be monitored, and send the operation state to the front-end display 130.
It should be noted that, the time domain is a relation of describing a mathematical function or a physical signal to time, for example, a time domain waveform of a stress wave energy value can express a change of the signal along with time, the frequency spectrum is a distribution curve of frequency, complex oscillation is decomposed into harmonic oscillation with different amplitudes and different frequencies, the frequency spectrum introduces a study on the signal from the time domain to the frequency domain, the stress wave energy value of the equipment to be monitored is firstly analyzed in the time domain, then the frequency spectrum is analyzed, and the running state of the equipment to be monitored is judged according to the result of the two analyses, so that the reliability of the obtained running state can be ensured.
Specifically, referring to fig. 2, the back-end server 120 includes a database, a data driving module, a logic processing module, and an interface display module; the database is used for storing the stress wave energy values, wherein the database stores the historical stress wave energy values and standard spectrograms of all the equipment to be monitored in the workshop; the data driving module is used for receiving the stress wave energy value, transmitting the stress wave energy value to the database for storage, acquiring a stress wave energy set and a standard spectrogram of a preset time period corresponding to equipment to be monitored from the database, and transmitting the stress wave energy set and the standard spectrogram to the logic processing module; the logic processing module is used for generating an energy time domain diagram and an energy spectrogram according to the stress wave energy set, determining an operation state according to the energy time domain diagram, the energy spectrogram and the standard time domain diagram, and transmitting the operation state to the interface display module; and the interface display module is used for sending the running state to the front-end display so that the front-end display can display the running state.
It should be noted that, the database is in communication connection with the data driving module, the database and the data driving module can mutually transmit data, the data driving module stores the received stress wave energy value of the device to be monitored into the database, and then obtains the stress wave energy set of the device to be monitored from the database within a period of time. In addition, the database also stores standard spectrograms, and it should be understood that the standard spectrograms are in one-to-one correspondence with each transmission mechanism in each device.
In the energy-domain diagram, the horizontal axis represents time, the vertical axis represents energy, the energy changes with time, and the horizontal axis and the vertical axis represent the frequency and the amplitude of the energy signal, respectively, in the energy spectrum diagram.
In an embodiment, please refer to fig. 3, fig. 3 is a schematic diagram illustrating a back-end server and a front-end display according to an exemplary embodiment of the invention. As shown in fig. 3, the logic processing module includes a data acquisition service, a data processing service, an early warning judging service and a first interface service; the data acquisition service is used for receiving the stress wave energy set and the standard spectrogram; the data processing service is used for sequencing all the stress wave energy values concentrated by the stress wave energy according to the acquisition time, generating an energy time domain diagram, calculating the stress wave energy values concentrated by the stress wave energy, and generating an energy spectrogram; the early warning judging service is used for sequentially carrying out trend analysis on the energy time domain diagram and carrying out frequency spectrum comparison on the energy frequency spectrum diagram and the standard frequency spectrum diagram to determine the running state; the first interface service is used for providing a first service interface for the front-end display, receiving and analyzing a first HTTP request sent by the front-end display, and sending the running state to the front-end display.
In this embodiment, the stress wave energy value concentrated by the stress wave energy is calculated, so that the energy spectrogram is a mature prior art, and a specific calculation process is not described in detail herein. In addition, the back-end server 120 may communicate with the front-end display 130 based on the HTTP protocol, and the first HTTP request is a service request that the front-end display 130 obtains the operation status of the device to be monitored from the back-end server 120.
With continued reference to fig. 3, in a possible embodiment, the back-end server 120 may further include a parsing input module, configured to parse the first HTTP request sent by the front-end display 130, and then input the running state obtained by the logic processing module to the front-end display 130.
In one embodiment, the early warning judgment service includes; the analysis unit is used for judging whether trend fluctuation of the energy time domain graph is stable or not according to a preset fluctuation range, if the trend fluctuation is stable, determining that the running state is normal, and if the trend fluctuation is strong, triggering the comparison unit to start for spectrum comparison; and the comparison unit is used for comparing the frequency spectrum of the energy spectrogram with the standard spectrogram when the trend fluctuation of the energy time domain graph is strong, if the frequency spectrum is consistent, determining that the running state is normal, and if the frequency spectrum is inconsistent, determining that the running state is abnormal.
In this embodiment, the operation state of the device to be monitored is determined by performing time-domain analysis on the stress wave energy value of the device to be monitored and then performing spectral analysis on the stress wave energy value, and the obtained operation state can be ensured.
The front-end display 130 is configured to display an operation state of the device to be monitored, and send out an abnormality early warning when the operation state is abnormal.
It should be noted that, the front-end display 130 displays the operation data of all the devices to be monitored in the workshop.
Specifically, with continued reference to fig. 3, front-end display 130 includes: the production line monitoring disc module is used for displaying the target position of each device to be monitored in the process flow chart, displaying the running state on the target position through the color lump, and displaying the early warning statistical information of each device to be monitored through the histogram; the device overview module is used for displaying the total number of the devices to be monitored, the total number of the first measuring points and the online rate of the measuring points in the workshop, and displaying the state color blocks, the total number of the second measuring points and the abnormal number of the measuring points of each device to be monitored through the tag card, wherein the tag card and the devices to be monitored are in one-to-one correspondence; the equipment detail module is used for displaying the total number of the second measuring points of the equipment to be monitored, a mechanical transmission structure schematic diagram and the stress wave energy values of all the measuring points through jumping in of the tag card, and an energy time domain diagram and an energy spectrum diagram in a preset time period; and the early warning management module is used for sending out an abnormal early warning when the running state of the equipment to be monitored in the workshop is abnormal, and displaying the specific equipment to be monitored and the specific measuring point corresponding to the abnormal early warning.
In this embodiment, a specific position of each device to be monitored in a process is displayed on a display interface in a process flow chart mode, then the running state of the corresponding device to be monitored is displayed on the specific position through a color block, for example, the running state of a green color block is normal, the running state of a red color block is abnormal, and then the early warning statistical information of each device to be monitored is displayed through a histogram, so that the running state and the early warning condition of each device to be monitored can be clearly displayed.
It should be noted that, the device overview module corresponds to all devices to be monitored in the whole workshop, the device detail module corresponds to a specific device to be monitored, and the device detail module of a certain device can be jumped to the device detail module of the device through the corresponding tag card of the certain device in the device overview module. Through the form that equipment overview module and equipment detail module combine together, like this, can form the running state show of workshop integral equipment and single equipment, perfect the management system of workshop equipment.
It should be further noted that the total number of the first measuring points shown in the device overview module refers to the number of the monitoring points, i.e. the total number of the monitoring points may be equal to the total number of the stress wave sensors; the online rate of the measuring points displayed in the equipment overview module refers to the number of normal monitoring points, namely the number of stress wave sensors with normal stress wave signals acquired; in addition, the tag card of each device to be monitored in the device overview module displays the state color blocks of each device to be monitored, the total number of second measuring points and the abnormal number of measuring points, wherein the total number of the second measuring points is the number of stress wave sensors arranged on a certain device to be monitored, namely the number equivalent to the number of transmission mechanisms of the device to be monitored, and the abnormal number of the measuring points is the abnormal number of monitoring points on a certain device to be monitored, namely the number of stress wave sensors which acquire normal stress wave signals on a certain device to be monitored. It should be understood that when one or more abnormal monitoring points exist on a certain device to be monitored, the running state of the device to be monitored is abnormal.
In addition, in the embodiment, when the running state of the equipment to be monitored is abnormal in a workshop, the early warning management module sends out abnormal early warning, displays specific equipment to be monitored and specific measuring points corresponding to the abnormal early warning, realizes the positioning of the fault equipment, provides a guiding direction for the detection and maintenance of the equipment by positioning to a fault source, simultaneously can reduce the unnecessary maintenance cost of the equipment, shortens the downtime of the equipment and ensures the stable running of the equipment.
In an embodiment, the device detail module further comprises: and the query service is used for looking up the historical stress wave energy value, the historical energy time domain graph and the historical energy spectrogram of each measuring point of the equipment to be monitored.
In this embodiment, the device detail module further provides a query service, which can query the historical data of a specific device to be monitored, including, but not limited to, the historical stress wave energy value, the historical energy time domain graph and the historical energy spectrogram of each measuring point of the monitoring device.
In one embodiment, referring still to FIG. 2, the system 100 further includes a browser, and the front-end display 130 further includes a second interface service; the browser is used for generating a second HTTP request for viewing the front-end display according to the query instruction of the user and sending the second HTTP request to the front-end display, wherein the second HTTP request carries a target viewing item of the user; and the second interface service is used for receiving a second HTTP request from the browser and providing the device data corresponding to the target viewing item in response to the second HTTP request.
It should be noted that the target view item refers to the production line monitoring module, the equipment overview module, the equipment detail module or the early warning management module.
According to the electronic billboard monitoring system based on stress waves, before production, the stress wave energy value of the equipment to be monitored is collected in real time through the stress wave collecting device and is sent to the rear-end server, then the rear-end server counts the stress wave energy value, time domain analysis and frequency spectrum analysis are sequentially carried out on the stress wave energy value, the running state of the equipment to be monitored is judged, the running state is sent to the front-end display, finally the running state of the equipment to be monitored is displayed through the front-end display, and when the running state is abnormal, abnormal early warning is sent out for fault maintenance.
The invention further provides an application method of the electronic billboard monitoring system based on the stress wave, referring to fig. 4, fig. 4 is a flowchart of an application method of the electronic billboard monitoring system based on the stress wave according to an exemplary embodiment of the application. As shown in fig. 4, the method at least includes steps S410 to S440, which are described in detail as follows:
step S410, obtaining stress wave energy values of equipment to be monitored in real time;
step S420, counting stress wave energy values, and sequentially performing time domain analysis and frequency spectrum analysis;
step S430, judging the running state of the equipment to be monitored according to the analysis result, and displaying the running state;
step S440, if the running state is abnormal, triggering the early warning function to send out abnormal early warning.
It should be noted that, the application method of the electronic billboard monitoring system based on stress wave provided by the above embodiment belongs to the same concept as the electronic billboard monitoring system based on stress wave provided by the above embodiment, wherein each step has been described in detail in the embodiment of the electronic billboard monitoring system based on stress wave, and will not be described here again.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. An electronic billboard monitoring system based on stress waves is characterized by comprising a stress wave acquisition device, a rear-end server and a front-end display;
the stress wave acquisition device is used for acquiring the stress wave energy value of the equipment to be monitored in real time and sending the stress wave energy value to the back-end server;
the back-end server is used for receiving the stress wave energy value, counting the stress wave energy value, sequentially carrying out time domain analysis and frequency spectrum analysis on the stress wave energy value, judging the running state of the equipment to be monitored, and sending the running state to the front-end display;
the front-end display is used for displaying the running state of the equipment to be monitored and sending out abnormal early warning when the running state is abnormal.
2. The stress wave based electronic billboard monitoring system of claim 1, wherein the front-end display displays operational data of all of the devices to be monitored in the shop, the front-end display comprising:
the production line monitoring module is used for displaying the target position of each device to be monitored in the process flow chart, displaying the running state on the target position through a color block, and displaying the early warning statistical information of each device to be monitored through a histogram;
the equipment overview module is used for displaying the total number of the equipment to be monitored, the total number of the first measuring points and the online rate of the measuring points in a workshop, and displaying the state color blocks, the total number of the second measuring points and the abnormal number of the measuring points of each piece of equipment to be monitored through a tag card, wherein the tag card and the equipment to be monitored are in one-to-one correspondence;
the equipment detail module is used for displaying the total number of the second measuring points, the mechanical transmission structure schematic diagram and the stress wave energy value of each measuring point of the equipment to be monitored through the jump access of the tag card, and an energy time domain diagram and an energy frequency spectrum diagram in a preset time period;
and the early warning management module is used for sending out the abnormal early warning when the running state of the equipment to be monitored in the workshop is abnormal, and displaying the specific equipment to be monitored and the specific measuring point corresponding to the abnormal early warning.
3. The stress wave based electronic sign monitoring system of claim 2, wherein the stress wave acquisition device comprises a plurality of stress wave sensors and a plurality of stress wave acquisition boxes, wherein each stress wave acquisition box is connected with a plurality of stress wave sensors;
the stress wave sensor is arranged on a transmission mechanism of the equipment to be monitored and used for collecting stress wave signals of the transmission mechanism and transmitting the stress wave signals to the stress wave collecting box, wherein at least one stress wave sensor is arranged on the equipment to be monitored;
the stress wave collecting box is internally provided with a low-pass filter circuit and an energy value calculator, and is used for inputting the stress wave signal into the low-pass filter circuit for interference signal filtering, and inputting the filtered stress wave signal into the energy value calculator to obtain the stress wave energy value.
4. The stress wave based electronic billboard monitoring system of claim 1, wherein the backend server comprises a database, a data-driven module, a logic processing module, and an interface display module;
the database is used for storing the stress wave energy values, wherein the database stores historical stress wave energy values and standard spectrograms of all the equipment to be monitored in the workshop;
the data driving module is used for receiving the stress wave energy value, transmitting the stress wave energy value to the database for storage, acquiring a stress wave energy set and the standard spectrogram of a preset time period corresponding to the equipment to be monitored from the database, and transmitting the stress wave energy set and the standard spectrogram to the logic processing module;
the logic processing module is used for generating an energy time domain diagram and an energy spectrogram according to the stress wave energy set, determining the running state according to the energy time domain diagram, the energy spectrogram and the standard time domain diagram and transmitting the running state to the interface display module;
and the interface display module is used for sending the running state to the front-end display so that the front-end display can display the running state.
5. The stress wave based electronic billboard monitoring system of claim 4, wherein the logic processing module comprises a data acquisition service, a data processing service, an early warning judgment service and a first interface service;
the data acquisition service is used for receiving the stress wave energy set and the standard spectrogram;
the data processing service is used for sequencing all stress wave energy values in the stress wave energy concentration according to the acquisition time, generating the energy time domain graph, calculating the stress wave energy values in the stress wave energy concentration, and generating the energy spectrogram;
the early warning judging service is used for sequentially carrying out trend analysis on the energy time domain diagram and carrying out spectrum comparison on the energy spectrogram and the standard spectrogram to determine the running state;
the first interface service is configured to provide a first service interface for the front-end display, receive and parse a first HTTP request sent by the front-end display, and send the running state to the front-end display.
6. The stress wave based electronic billboard monitoring system of claim 5, wherein the pre-warning judgment service comprises;
the analysis unit is used for judging whether trend fluctuation of the energy time domain graph is stable or not according to a preset fluctuation range, if the trend fluctuation is stable, determining that the running state is normal, and if the trend fluctuation is strong, triggering the comparison unit to start for spectrum comparison;
the comparison unit is used for comparing the frequency spectrum of the energy spectrogram with the standard spectrogram when the trend fluctuation of the energy time domain graph is strong, if the frequency spectrum is consistent, determining that the running state is normal, and if the frequency spectrum is inconsistent, determining that the running state is abnormal.
7. The stress wave based electronic billboard monitoring system of claim 2, wherein the device detail module further comprises:
and the query service is used for checking the historical stress wave energy value, the historical energy time domain graph and the historical energy spectrogram of each measuring point of the equipment to be monitored.
8. The stress wave based electronic billboard monitoring system according to any of claims 1-7, further comprising a browser, the front-end display further comprising a second interface service;
the browser is used for generating a second HTTP request for viewing the front-end display according to a query instruction of a user and sending the second HTTP request to the front-end display, wherein the second HTTP request carries a target viewing item of the user;
the second interface service is configured to receive the second HTTP request from the browser, and provide device data corresponding to the target viewing item in response to the second HTTP request.
9. A method of applying a stress wave based electronic sign monitoring system, the method comprising:
acquiring stress wave energy values of equipment to be monitored in real time;
counting the stress wave energy values, and sequentially performing time domain analysis and frequency spectrum analysis;
judging the running state of the equipment to be monitored according to the analysis result, and displaying the running state;
and if the running state is abnormal, triggering an early warning function to send out abnormal early warning.
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| CN202311420133.XA CN117664413A (en) | 2023-10-30 | 2023-10-30 | Electronic billboard monitoring system based on stress wave and application method |
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| CN202311420133.XA CN117664413A (en) | 2023-10-30 | 2023-10-30 | Electronic billboard monitoring system based on stress wave and application method |
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