CN115371777A - Monitoring and early warning method, device, system, equipment and medium of Coriolis flowmeter - Google Patents
Monitoring and early warning method, device, system, equipment and medium of Coriolis flowmeter Download PDFInfo
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Abstract
The invention relates to a monitoring and early warning method, a device, a system, equipment and a medium of a Coriolis flowmeter, comprising the following steps: acquiring a first frequency, wherein the first frequency represents the frequency of vibration generated by the Coriolis flowmeter during current work; acquiring a second frequency, wherein the second frequency is a frequency at which the first frequency is coupled with the natural frequency of the Coriolis flowmeter to generate resonance; determining an early warning value according to the first frequency and the second frequency, wherein the early warning value represents frequency variation corresponding to the first frequency and the second frequency; and monitoring and early warning the Coriolis flowmeter according to the early warning value. The problem of when the metering out-of-tolerance state of the Coriolis flowmeter is abnormal, monitoring and early warning cannot be timely and effectively adopted is solved.
Description
Technical Field
The invention relates to the technical field of Coriolis flowmeter monitoring, in particular to a monitoring and early warning method, a device, a system, equipment and a medium of a Coriolis flowmeter.
Background
The Coriolis flowmeter can directly measure the mass flow and the density of a medium due to the particularity of a measurement principle, and is widely used for measuring the mass flow, particularly in the industries of petroleum, chemical engineering, aerospace, electric power and the like; the measurement stability of the Coriolis flowmeter is easy to generate a measurement error along with the change of an application environment, and the Coriolis flowmeter is a resonant type meter and is easy to generate a coupling resonance phenomenon; the application field of the Coriolis mass flowmeter is mostly an oil and gas gathering and transportation station, large-scale vibration equipment such as a pump and the like is arranged in the station, the flowmeter is skid-mounted, the mechanical vibration interference of the environment cannot be avoided, and the Coriolis mass flowmeter is easy to resonate to cause the metering error; therefore, monitoring and early warning on external vibration interference under the actual application working condition of the Coriolis mass flowmeter is key work for preventing the metering of the Coriolis mass flowmeter from being out of tolerance and guaranteeing the metering fairness.
U.S. patent No. 5,736,653 discloses a vibration monitoring system based on a coriolis flowmeter, in which a velocity sensor for sensing vibrations of a measuring tube is disposed along the measuring tube, and an acceleration sensor is mounted on a support tube along a line of intersection of a plane on which coriolis force acts; finally, the signal of the speed sensor and the signal of the acceleration sensor are combined to process the interference in the mass flow signal, so that the metering accuracy of the Coriolis flowmeter is improved; a device for eliminating vibration propagation of a coriolis mass flowmeter is disclosed in publication No. CN206114025U, which comprises two flow tubes and a damping plate fixed between the outer sides of the two flow tubes. The utility model changes the vibration critical point through the hoop and the anti-vibration lining ring, thereby achieving the effect of eliminating resonance; publication No. CN107014482B discloses an online vibration state monitoring device and method, which are used to solve the technical problem of poor real-time performance of the existing meter electronics and method for verification and diagnosis of a flowmeter. The technical scheme is that the device comprises a signal acquisition unit, a sampling control unit and a signal processing unit. The signal acquisition unit comprises an accelerometer, a charge amplifier, a data acquisition board card and a USB interface and is responsible for acquiring vibration signals on the outer shell of the flowmeter. The sampling control unit comprises a bottom layer drive and a sampling parameter setting user interface and is responsible for finishing interactive control over the signal acquisition unit. The signal processing unit comprises a signal display module and a diagnosis module, the signal display module is used for displaying the vibration signal, and the diagnosis module is used for analyzing the vibration signal and judging the structural change condition of the flowmeter. The invention monitors the structure state of the flowmeter in the working process, thereby effectively improving the production efficiency.
Some coriolis flowmeter vibration monitoring methods or systems are proposed in the above-mentioned related art, but the methods in the related art have the following technical problems: because external influence factors are not considered, the metering out-of-tolerance state of the Coriolis flowmeter is difficult to accurately know, and therefore maintenance measures cannot be timely and effectively taken when the metering out-of-tolerance state of the Coriolis flowmeter is abnormal.
Disclosure of Invention
The invention provides a monitoring and early warning method, a device, a system, equipment and a medium of a Coriolis flowmeter, aiming at solving the problem that monitoring and early warning cannot be timely and effectively adopted when the metering out-of-tolerance state of the Coriolis flowmeter is abnormal.
In a first aspect, to solve the above technical problem, the present invention provides a monitoring and early warning method for a coriolis flowmeter, including the following steps:
s1, acquiring a first frequency, wherein the first frequency represents the frequency of vibration generated by the Coriolis flowmeter during current work;
s2, acquiring a second frequency, wherein the second frequency is a frequency when the first frequency is coupled with the natural frequency of the Coriolis flowmeter to generate resonance;
s3, determining an early warning value according to the first frequency and the second frequency, wherein the early warning value represents frequency variation corresponding to the first frequency and the second frequency;
and S4, monitoring and early warning the Coriolis flowmeter according to the early warning value.
The monitoring and early warning method of the Coriolis flowmeter provided by the invention has the beneficial effects that: according to the Coriolis flowmeter monitoring method and device, when the Coriolis flowmeter is used, the influence of external factors (the second frequency which generates coupling resonance with the first frequency) on the Coriolis flowmeter is taken into consideration, and therefore once the Coriolis mass flowmeter is abnormal in metering over-error state (due to the fact that the first frequency and the second frequency generate coupling resonance, the Coriolis mass flowmeter is abnormal in metering over-error state), early warning is timely monitored.
On the basis of the technical scheme, the monitoring and early warning method of the Coriolis flowmeter can be further improved as follows.
Further, the second frequency is a drive frequency or a coriolis force frequency of the coriolis flowmeter, and the determining of the warning value according to the first frequency and the second frequency includes:
determining an early warning value through a first formula according to the first frequency and the second frequency, wherein the first formula is as follows:
wherein P represents an early warning value, f 1 Representing a first frequency, f 2 Representing a second frequency.
The beneficial effect of adopting the further scheme is that: the second frequency which is coupled and resonated with the first frequency is generally the excitation frequency or the coriolis force frequency of the coriolis flowmeter, so that the early warning value is determined by the first formula according to the first frequency and the excitation frequency or the coriolis force frequency, and the coriolis flowmeter can be monitored and early warned by the early warning value.
Further, the acquiring the first frequency includes:
s31, acquiring a vibration signal generated by the outside when the Coriolis flowmeter works currently;
s32, carrying out high-frequency passband filtering processing on the vibration signals to obtain time domain acceleration signals;
s33, carrying out Fourier transform on the time domain acceleration signal to obtain a frequency domain acceleration signal;
s34, carrying out inverse Fourier transform on the frequency domain acceleration signal to obtain a time domain displacement value;
and S35, performing Hilbert transform on the time domain displacement value to obtain a first frequency.
The beneficial effect of adopting the above further scheme is: through S32 to S35, the first frequency can be obtained by preprocessing the vibration signal.
Further, the monitoring and early warning of the coriolis flowmeter according to the early warning value includes:
and when the early warning value is in the preset interval, sending out warning information.
The beneficial effect of adopting the further scheme is that: when the early warning value is located in the preset interval, the abnormal over-tolerance state of the Coriolis mass flowmeter is indicated, at the moment, alarm information is sent out, and a monitor is reminded that the abnormal over-tolerance state of the Coriolis mass flowmeter is abnormal.
Further, the above-mentioned monitoring and early warning to the coriolis flowmeter according to the early warning value includes:
and determining the early warning level corresponding to the early warning value according to the early warning value and the preset interval corresponding to different early warning levels.
The beneficial effect of adopting the above further scheme is: according to the early warning value and the preset intervals corresponding to different early warning levels, the early warning level corresponding to the early warning value can be determined, and a monitor can obtain the abnormal degree of the abnormal metering out-of-tolerance state of the Coriolis mass flowmeter at the first time.
In a second aspect, the present invention provides a monitoring and early warning device for a coriolis flowmeter, including:
the system comprises a vibration sensor unit, a sensor node module and a remote monitoring platform, wherein the vibration sensor is connected with the sensor node module, and the sensor node module is connected with the remote monitoring platform;
a vibration sensor for acquiring a first frequency and a second frequency;
the sensor node module is used for receiving and storing the first frequency and the second frequency and transmitting the first frequency and the second frequency to the remote monitoring platform;
and the remote monitoring platform is used for determining an early warning value according to the first frequency and the second frequency and carrying out monitoring and early warning on the Coriolis flowmeter according to the early warning value.
The monitoring and early warning device of the Coriolis flowmeter provided by the invention has the beneficial effects that: the Coriolis flowmeter vibration monitoring and early warning method comprises the steps of obtaining first frequency and second frequency through a vibration sensor, receiving and storing the first frequency and the second frequency through a sensor node module, transmitting the first frequency and the second frequency to a remote monitoring platform, determining an early warning value by the remote monitoring platform according to the first frequency and the second frequency, monitoring and early warning a Coriolis flowmeter according to the early warning value, and achieving vibration monitoring and early warning of the Coriolis flowmeter.
In a third aspect, the present invention provides a monitoring and early warning system for a coriolis flowmeter, comprising:
the device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring a first frequency, and the first frequency represents the frequency of vibration generated by the Coriolis flowmeter during current work;
the second acquisition module is used for acquiring a second frequency, wherein the second frequency is a frequency when the first frequency is coupled with the natural frequency of the Coriolis flowmeter to generate resonance;
the third acquisition module is used for determining an early warning value according to the first frequency and the second frequency, wherein the early warning value represents the frequency variation corresponding to the first frequency and the second frequency;
and the monitoring and early warning module is used for monitoring and early warning the Coriolis flowmeter according to the early warning value.
The monitoring and early warning system of the Coriolis flowmeter provided by the invention has the beneficial effects that: according to the Coriolis flowmeter monitoring method and device, when the Coriolis flowmeter is used, the influence of external factors (the second frequency which generates coupling resonance with the first frequency) on the Coriolis flowmeter is taken into consideration, and therefore once the Coriolis mass flowmeter is abnormal in metering over-error state (due to the fact that the first frequency and the second frequency generate coupling resonance, the Coriolis mass flowmeter is abnormal in metering over-error state), early warning is timely monitored.
In a fourth aspect, the present invention further provides an electronic device, which includes a memory, a processor, and a program stored in the memory and running on the processor, and when the processor executes the program, the steps of the monitoring and early warning method for the coriolis flowmeter are implemented.
In a fifth aspect, the present invention further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a terminal device, the instructions cause the terminal device to perform the steps of the monitoring and early warning method for the coriolis flowmeter.
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In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the present invention is further described below with reference to the drawings and the embodiments.
FIG. 1 is a schematic flow chart of a monitoring and early warning method for a Coriolis flowmeter in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a monitoring and early warning device of a Coriolis flowmeter in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the monitoring and early warning device of the coriolis flowmeter according to the embodiment of the present invention in another operating state;
fig. 4 is a schematic structural diagram of a monitoring and early warning system of a coriolis flowmeter according to an embodiment of the present invention.
Detailed Description
The following examples are further illustrative and supplementary to the present invention and do not limit the present invention in any way.
As shown in fig. 1, the monitoring and early warning method for a coriolis flowmeter according to the embodiment of the present invention includes the following steps:
s1, acquiring a first frequency, wherein the first frequency represents the frequency of vibration generated by the Coriolis flowmeter during current work.
Optionally, acquiring the first frequency includes:
s31, acquiring a vibration signal generated by the outside when the Coriolis flowmeter works currently;
s32, carrying out high-frequency passband filtering processing on the vibration signals to obtain time domain acceleration signals;
s33, carrying out Fourier transform on the time domain acceleration signal to obtain a frequency domain acceleration signal;
s34, carrying out inverse Fourier transform on the frequency domain acceleration signal to obtain a time domain displacement value;
and S35, performing Hilbert transform on the time domain displacement value to obtain a first frequency.
In S32, high-frequency passband filtering processing is performed on the vibration signal, so that interference of the high-frequency signal is eliminated;
in S35, when the time-domain displacement value is subjected to hilbert transform, the time-domain displacement value may be calculated by an angle function to obtain an instantaneous phase, and the instantaneous phase is differentiated to obtain the first frequency.
And S2, acquiring a second frequency, wherein the second frequency is a frequency when the first frequency is coupled with the natural frequency of the Coriolis flowmeter to generate resonance.
Optionally, when the coriolis flowmeter is excited by external force to generate motion, the coriolis flowmeter is tested by a numerical simulation method, and the first frequency is adjusted to a specific frequency determined by the property of the coriolis flowmeter, and finally, the test shows that when the first frequency is close to the excitation frequency or the coriolis force frequency of the coriolis flowmeter, the first frequency is coupled and resonated with the natural frequency of the coriolis flowmeter, and therefore, the second frequency is the excitation frequency or the coriolis force frequency of the coriolis flowmeter.
And S3, determining an early warning value according to the first frequency and the second frequency, wherein the early warning value represents the frequency variation corresponding to the first frequency and the second frequency.
Optionally, determining an early warning value according to the first frequency and the second frequency includes:
determining an early warning value through a first formula according to the first frequency and the second frequency, wherein the first formula is as follows:
wherein P represents an early warning value, which can also be called an out-of-tolerance early warning value, f 1 Representing a first frequency, f 2 Representing a second frequency.
In this embodiment, the second frequency may be determined based on a quantitative influence rule of external vibration on the metering accuracy of the coriolis flowmeter, where the quantitative influence rule of the external vibration on the metering accuracy of the coriolis flowmeter specifically includes:
the coriolis flowmeter has an excitation frequency of 80Hz and a coriolis force frequency of 197Hz, and the excitation frequency is coupled to resonate at a natural frequency of the coriolis flowmeter when the external vibration frequency (first frequency) is close to the excitation frequency (second frequency) of the coriolis flowmeter, or the coriolis force frequency is coupled to resonate at a natural frequency of the coriolis flowmeter when the external vibration frequency (first frequency) is close to the coriolis force frequency (second frequency).
Optionally, the second frequency includes an excitation frequency or a coriolis force frequency, and therefore the different warning values corresponding to the second frequency are as follows:
according to the first frequency and the excitation frequency, determining an early warning value corresponding to the excitation frequency through a first formula, wherein the first formula is as follows:
wherein, P 1 Representing the corresponding warning value of the excitation frequency, f 1 Representing a first frequency, f 3 Represents the excitation frequency;
according to the first frequency and the Coriolis force frequency, determining an early warning value corresponding to the Coriolis force frequency through a first formula, wherein the first formula is as follows:
wherein, P 2 An early warning value, f, indicating the frequency response of the Coriolis force 1 Representing a first frequency, f 4 Representing the excitation frequency.
And S4, monitoring and early warning the Coriolis flowmeter according to the early warning value.
Optionally, according to the early warning value, monitoring and early warning are performed on the coriolis flowmeter, including:
and when the early warning value is in a preset interval, sending out warning information.
In this embodiment, the alarm information may be light flashing or voice broadcast.
Optionally, according to the early warning value, monitoring and early warning are performed on the coriolis flowmeter, including:
and determining the early warning level corresponding to the early warning value according to the early warning value and the preset intervals corresponding to different early warning levels.
In this embodiment, different warning levels may correspond to different warning information, for example, light flashes of different colors may be set, and one color corresponds to one warning level.
Optionally, in this embodiment, the warning value P corresponding to the excitation frequency is obtained 1 Early warning value P corresponding to Coriolis force frequency 2 Therefore, the preset interval and the early warning level may be as follows:
| early warning parameter p 1 、p 2 | Early warning level |
| 6.25％<p 1 Less than or equal to 12.5 percent or 2.54 percent<p 2 ≤5.1％ | Blue lamp |
| 2.5％<p 1 Less than or equal to 6.25 percent or 1.02 percent<p 2 ≤2.54％ | Yellow lamp |
| p 1 Less than or equal to 2.5 percent or p 2 ≤1.02％ | Red lamp |
Wherein, the early warning level is improved from blue to red in turn, when P is 1 Or P 2 Falling within the corresponding preset interval, i.e. sending out the alarm information corresponding to the early warning level, for example, when P 1 Less than or equal to 2.5 percent or P 2 When the first frequency and the natural frequency of the Coriolis mass flowmeter are less than or equal to 1.02%, the first frequency and the natural frequency of the Coriolis mass flowmeter are indicated to generate serious coupling resonance, the metering out-of-tolerance state of the Coriolis mass flowmeter enters an abnormal state, the early warning level is the highest level, and the red light flickers at the moment.
As shown in fig. 2, the monitoring and early warning device of the coriolis flowmeter according to the embodiment of the present invention includes a vibration sensor unit 202, a sensor node module 203, and a remote monitoring platform 204, wherein the vibration sensor is connected to the sensor node module, and the sensor node module is connected to the remote monitoring platform;
a vibration sensor for acquiring a first frequency and a second frequency;
the sensor node module is used for receiving and storing the first frequency and the second frequency and transmitting the first frequency and the second frequency to the remote monitoring platform;
and the remote monitoring platform is used for determining an early warning value according to the first frequency and the second frequency and carrying out monitoring and early warning on the Coriolis flowmeter according to the early warning value.
Optionally, the vibration sensor is disposed at monitoring points such as an end face and an arc face of a flange of the coriolis flowmeter, and is configured to acquire a first frequency and a second frequency at each monitoring point.
As shown in fig. 3, the sensor node module includes a microprocessor, a memory and a wireless communication module, wherein the microprocessor is configured to receive the first frequency and the second frequency, store the first frequency and the second frequency in the memory, and transmit the first frequency and the second frequency to the remote monitoring platform through the wireless communication module.
Optionally, the wireless communication module is a LORA wireless radio frequency communication module or a bluetooth module, and the microprocessor uses an STM32F429IGT6 and peripheral circuits thereof.
As shown in fig. 3, when the vibration sensor collects a frequency signal, in order to obtain a more accurate frequency signal, the signal is amplified by a differential amplifier circuit, and the differential amplifier circuit needs to adjust a voltage to a proper value, so that a bias voltage is generated.
As shown in fig. 3, since the sensor node module is far from the remote monitoring platform, a relay processing module is added between the sensor node module and the remote monitoring platform to extend the network transmission distance between the sensor node module and the remote monitoring platform, wherein the relay processing module includes a relay processor, a gateway and a mobile communication module, the relay processor is connected with the microprocessor through the gateway, and the relay processor is connected with the remote monitoring platform through the mobile communication module.
As shown in fig. 4, the monitoring and early warning system of a coriolis flowmeter according to the embodiment of the present invention includes:
a first obtaining module 302, configured to obtain a first frequency, where the first frequency is indicative of a frequency at which the coriolis flowmeter vibrates during a current operation;
a second obtaining module 303, configured to obtain a second frequency, where the second frequency represents a frequency at which the coriolis flowmeter resonates with the first frequency in a coupling manner when the coriolis flowmeter is currently operating;
a third obtaining module 304, configured to determine an early warning value according to the first frequency and the second frequency, where the early warning value represents a frequency variation corresponding to the first frequency and the second frequency;
and the monitoring and early warning module 305 is used for monitoring and early warning the coriolis flowmeter according to the early warning value.
Optionally, the first obtaining module 302 obtains the first frequency through a first unit, where the first unit is specifically configured to:
s31, acquiring a vibration signal of the Coriolis flowmeter during current working;
s32, carrying out high-frequency passband filtering processing on the vibration signals to obtain time domain acceleration signals;
s33, carrying out Fourier transform on the time domain acceleration signal to obtain a frequency domain acceleration signal;
s34, carrying out inverse Fourier transform on the frequency domain acceleration signal to obtain a time domain displacement value;
and S35, performing Hilbert transform on the time domain displacement value to obtain a first frequency.
Optionally, the third obtaining module 304 includes:
the calculation module is used for determining an early warning value through a first formula according to the first frequency and the second frequency, wherein the first formula is as follows:
wherein P represents an early warning value, f 1 Representing a first frequency, f 2 Representing a second frequency.
Optionally, the monitoring and warning module 305 includes:
and the alarm module is used for sending out alarm information when the early warning value is positioned in a preset interval.
And the early warning grade module is used for determining the early warning grade corresponding to the early warning value according to the early warning value and the preset intervals corresponding to different early warning grades.
The electronic equipment comprises a memory, a processor and a program which is stored on the memory and runs on the processor, wherein the processor executes the program to realize part or all of the steps of the monitoring and early warning method of the Coriolis flowmeter.
The electronic device may be a computer, a mobile phone, or the like, and correspondingly, the program of the electronic device is computer software or a mobile phone APP, and the parameters and the steps in the electronic device of the present invention may refer to the parameters and the steps in the embodiment of the monitoring and early warning method for a coriolis flowmeter, which are not described herein again.
As will be appreciated by one skilled in the art, the present invention may be embodied as an apparatus, method or computer program product. Accordingly, the present disclosure may be embodied in the form of: may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) and in a combination of hardware and software, and may be referred to herein generally as a "circuit," module "or" device. Furthermore, in some embodiments, the invention may also be embodied in the form of a computer program product in one or more computer-readable media having computer-readable program code embodied in the medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor device, apparatus, or device, or any combination of the foregoing.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The monitoring and early warning method of the Coriolis flowmeter is characterized by comprising the following steps of:
s1, acquiring a first frequency, wherein the first frequency represents the frequency generated by external vibration when the Coriolis flowmeter works at present;
s2, acquiring a second frequency, wherein the second frequency is a frequency when the first frequency is coupled with the natural frequency of the Coriolis flowmeter to generate resonance;
s3, determining an early warning value according to the first frequency and the second frequency, wherein the early warning value represents frequency variation corresponding to the first frequency and the second frequency;
and S4, monitoring and early warning the Coriolis flowmeter according to the early warning value.
2. The method of claim 1, wherein the second frequency is a drive frequency or a coriolis force frequency of the coriolis flowmeter, and wherein determining the early warning value based on the first frequency and the second frequency comprises:
determining an early warning value through a first formula according to the first frequency and the second frequency, wherein the first formula is as follows:
wherein P represents an early warning value, f 1 Representing a first frequency, f 2 Representing a second frequency.
3. The method of claim 1, wherein obtaining the first frequency comprises:
s31, acquiring a vibration signal generated by the outside when the Coriolis flowmeter works currently;
s32, carrying out high-frequency passband filtering processing on the vibration signal to obtain a time domain acceleration signal;
s33, carrying out Fourier transform on the time domain acceleration signal to obtain a frequency domain acceleration signal;
s34, performing inverse Fourier transform on the frequency domain acceleration signal to obtain a time domain displacement value;
and S35, performing Hilbert transform on the time domain displacement value to obtain the first frequency.
4. The method of claim 1, wherein monitoring and forewarning the coriolis flowmeter based on the forewarning value comprises:
and when the early warning value is in a preset interval, sending out warning information.
5. The method of claim 4, wherein monitoring and forewarning the coriolis flowmeter based on the forewarning value comprises:
and determining the early warning level corresponding to the early warning value according to the early warning value and the preset interval corresponding to different early warning levels.
6. Monitoring early warning device of coriolis flowmeter, its characterized in that: the method comprises the following steps:
the vibration sensor comprises a vibration sensor unit, a sensor node module and a remote monitoring platform, wherein the vibration sensor is connected with the sensor node module, and the sensor node module is connected with the remote monitoring platform;
the vibration sensor is used for acquiring a first frequency and a second frequency;
the sensor node module is used for receiving and storing the first frequency and the second frequency and transmitting the first frequency and the second frequency to the remote monitoring platform;
and the remote monitoring platform is used for determining an early warning value according to the first frequency and the second frequency and carrying out monitoring and early warning on the Coriolis flowmeter according to the early warning value.
7. Monitoring and early warning system of Coriolis flowmeter, its characterized in that includes:
the device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring a first frequency, and the first frequency is used for representing the frequency of vibration generated by the Coriolis flowmeter during current work;
a second obtaining module, configured to obtain a second frequency, where the second frequency is a frequency at which the first frequency is coupled to a natural frequency of the coriolis flowmeter to resonate;
a third obtaining module, configured to determine an early warning value according to the first frequency and the second frequency, where the early warning value represents a frequency variation corresponding to the first frequency and the second frequency;
and the monitoring and early warning module is used for monitoring and early warning the Coriolis flowmeter according to the early warning value.
8. An electronic device comprising a memory, a processor and a program stored on the memory and executed on the processor, wherein the processor implements the steps of the coriolis flowmeter monitoring and forewarning method of any of claims 1-5 when executing the program.
9. A computer readable storage medium having stored therein instructions which, when run on a terminal device, cause the terminal device to perform the steps of the monitoring and forewarning method of a coriolis flowmeter of any one of claims 1-5.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117490807A (en) * | 2023-11-03 | 2024-02-02 | 北京首科实华自动化设备有限公司 | Quality factor acquisition method and system for coriolis mass flowmeter |
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