CN111237209B - Water pump rotating wheel stability monitoring method and device, electronic equipment and storage medium - Google Patents
Water pump rotating wheel stability monitoring method and device, electronic equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the invention provides a method and a device for monitoring the stability of a water pump rotating wheel, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel at the current time period based on an acceleration sensing unit pre-installed on the water pump rotating wheel; and determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump. According to the method, the device, the electronic equipment and the storage medium provided by the embodiment of the invention, the stability of the water pump rotating wheel is monitored by measuring the acceleration and the speed of the water pump rotating wheel in real time, so that the automatic monitoring of the stability of the water pump rotating wheel is realized, the additional manpower consumption is not needed, and convenience is provided for the operation, maintenance and management of a pump station unit.
Description
Technical Field
The invention relates to the technical field of water pump operation monitoring, in particular to a method and a device for monitoring stability of a water pump rotating wheel, electronic equipment and a storage medium.
Background
With the development of measurement control device intellectualization, it is a need and trend of modern operation management to realize small distributed unattended operation. In order to realize unattended operation of a pump station unit, a complete automatic measurement control device is set, which is a precondition guarantee for ensuring normal operation of equipment at the key moment of flood control and drought resistance.
The water pump is the main apparatus for producing of pump station unit, and the running state of water pump directly influences the normal operating of pump station unit. The water pump runner is the most important part of the water pump and is important for monitoring the operation stability of the water pump runner. At present, the stability of the water pump rotating wheel must be monitored by people in real time, a large amount of manpower is consumed, and great troubles are brought to the operation, maintenance and management of a pump station unit.
Disclosure of Invention
The embodiment of the invention provides a method and a device for monitoring the stability of a water pump rotating wheel, electronic equipment and a storage medium, which are used for solving the defects in the prior art.
In a first aspect, an embodiment of the present invention provides a method for monitoring stability of a water pump runner, including:
acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel at the current time period based on an acceleration sensing unit pre-installed on the water pump rotating wheel;
and determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump.
Preferably, the determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the reference acceleration waveform data and the reference speed waveform data in the normal state of the water pump, before further comprising:
judging whether the water pump is in a normal state or not at preset time intervals;
if the water pump is in a normal state, recording acceleration data and speed data at corresponding moments based on the acceleration sensing unit;
and constructing reference acceleration waveform data and reference speed waveform data based on a plurality of continuous acceleration data and speed data of the water pump at corresponding moments in a normal state.
Preferably, the judging whether the water pump is in a normal state specifically includes:
if the waveform fluctuation output by the acceleration sensing unit is smaller than a preset fluctuation threshold value and the water pump does not have abnormal sound and abnormal water flow, determining that the water pump is in a normal state;
otherwise, determining that the water pump is in an abnormal state.
Preferably, the determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the reference acceleration waveform data and the reference speed waveform data in the normal state of the water pump, which are stored in advance, specifically includes:
substituting the acceleration waveform data and the speed waveform data of the current time period into a reference waveform function to obtain a function output result; wherein the reference waveform function is abstracted based on the reference acceleration waveform data and the reference velocity waveform data;
if the function output result does not accord with the preset output result, performing waveform fitting on the acceleration waveform data and the speed waveform data of the current time period based on the reference waveform function to determine a waveform difference ratio;
if the function output result meets a preset output result or the waveform difference ratio is less than or equal to a preset difference threshold, determining that the stable state of the water pump rotating wheel in the current time period is stable; otherwise, determining the stable state of the water pump rotating wheel in the current time period to be unstable.
Preferably, the determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the reference acceleration waveform data and the reference speed waveform data in the normal state of the water pump, before further comprising:
and if the ratio of the difference value between the current data and the previous data to the previous data in the waveform data exceeds a preset difference ratio and the ratio of the difference value between the current data and the next data to the current data exceeds a preset difference ratio, replacing the current data with the mean value of the previous data and the next data.
Preferably, the determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the reference acceleration waveform data and the reference speed waveform data in the normal state of the water pump, and then further comprises:
and if the stable state of the water pump rotating wheel at the current moment is unstable, sending prompt information.
Preferably, the acceleration sensing unit comprises a horizontal acceleration sensing unit and a vertical acceleration sensing unit, and the horizontal acceleration sensing unit and the vertical acceleration sensing unit respectively acquire the accelerations of the water pump rotating wheel in the horizontal direction and the vertical direction.
In a second aspect, an embodiment of the present invention provides a water pump rotor stability monitoring device, including:
the data acquisition unit is used for acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel in the current time period based on an acceleration sensing unit which is pre-installed on the water pump rotating wheel;
and the stability monitoring unit is used for determining the stable state of the water pump rotating wheel in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump.
In a third aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a bus, where the processor and the communication interface, the memory complete communication with each other through the bus, and the processor may call a logic instruction in the memory to perform the steps of the method provided in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the method as provided in the first aspect.
According to the method and device for monitoring the stability of the water pump rotating wheel, the electronic equipment and the storage medium, provided by the embodiment of the invention, the stability of the water pump rotating wheel is monitored by measuring the acceleration and the speed of the water pump rotating wheel in real time, so that the automatic monitoring of the stability of the water pump rotating wheel is realized, extra manpower consumption is not needed, and convenience is provided for the operation, maintenance and management of a pump station unit.
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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 those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for monitoring stability of a water pump runner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a water pump runner stability monitoring device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Fig. 1 is a schematic flow chart of a method for monitoring stability of a water pump runner according to an embodiment of the present invention, as shown in fig. 1, the method includes:
and step 110, acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel in the current time period based on an acceleration sensing unit pre-installed on the water pump rotating wheel.
Here, the water pump runner that stability monitoring need carry out promptly, and acceleration sensing unit installs in advance in the water pump is changeed in disorder for the acceleration of real-time measurement water pump runner. Therefore, the acceleration data of the water pump in the current time period in the operation process can be obtained through the acceleration sensing unit. For the velocity data, it can be obtained by integral conversion of the acceleration data. Furthermore, the integral conversion can be realized by software integration or hardware integration, wherein the frequency spectrum of the displacement is obtained by performing software integration on the acceleration data, and the corresponding speed data can be obtained by introducing a time parameter on the basis.
After the acceleration data and the speed data are obtained, a waveform spectrogram corresponding to the acceleration data and a waveform spectrogram corresponding to the speed data can be respectively drawn, and the acceleration waveform data and the speed waveform data are obtained.
And step 120, determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump.
Specifically, the reference acceleration waveform data and the reference speed waveform data are stored in advance, and the acceleration waveform data and the speed waveform data in the normal state of the water pump are stored. The reference acceleration waveform data and the reference speed waveform data can represent the change rule of the acceleration and the speed of the water pump rotating wheel in the normal state of the water pump. Comparing the acceleration waveform data and the speed waveform data of the current time period with the reference acceleration waveform data and the reference speed waveform data, whether the acceleration waveform data and the speed waveform data of the current time period accord with the change rule of the acceleration and the speed of the water pump rotating wheel under the normal state of the water pump can be obtained, and then the stable state of the water pump rotating wheel of the current time period is obtained. Here, the water pump runner steady state is used to characterize the stability of the water pump runner, which is particularly stable or unstable.
According to the method provided by the embodiment of the invention, the stability of the water pump rotating wheel is monitored by measuring the acceleration and the speed of the water pump rotating wheel in real time, so that the stability of the water pump rotating wheel is automatically monitored without extra manpower consumption, and convenience is provided for the operation, maintenance and management of a pump station unit.
Based on the above embodiment, in the method, step 120 further includes: step 100, acquiring reference acceleration waveform data and reference speed waveform data. The step 100 specifically includes:
and step 101, judging whether the water pump is in a normal state or not at preset time intervals.
Specifically, the preset time is a preset length of time, for example, 5 minutes. When the water pump operates, the judgment of whether the water pump is in a normal state can be realized through multiple aspects, including checking whether waveform data output by an acceleration sensing unit pre-installed on a water pump rotating wheel has large fluctuation, monitoring whether abnormal sound exists during operation of the water pump, checking whether abnormal water flow exists during operation of the water pump, and the like, and the embodiment of the invention is not particularly limited to this.
And 102, if the water pump is in a normal state, recording acceleration data and speed data at corresponding moments based on the acceleration sensing unit.
Specifically, if the water pump is determined to be in the normal state after the judgment in step 101, the acceleration data and the speed data when the water pump is determined to be in the normal state are recorded.
And 103, constructing reference acceleration waveform data and reference speed waveform data based on the acceleration data and the speed data of the plurality of continuous water pumps at the corresponding time points in the normal state.
Specifically, step 103 is executed once every preset time to obtain acceleration data and velocity data at a plurality of moments, where intervals between the moments are all preset times, and a plurality of consecutive moments form a time span with uniform moment distribution.
Constructing reference acceleration waveform data based on acceleration data of a plurality of continuous water pumps at corresponding moments in a normal state; and constructing reference speed waveform data based on the speed data of a plurality of continuous water pumps at corresponding moments in a normal state. It should be noted that. The reference acceleration waveform data and the reference velocity waveform data may be constructed based on historical data or real-time data, which is not specifically limited in this embodiment of the present invention.
Based on any one of the above embodiments, in step 101, the determining whether the water pump is in a normal state specifically includes: if the waveform fluctuation output by the acceleration sensing unit is smaller than a preset fluctuation threshold value and the water pump does not have abnormal sound and abnormal water flow, determining that the water pump is in a normal state; otherwise, determining that the water pump is in an abnormal state.
Specifically, when judging whether the water pump is in a normal state, various factors need to be considered comprehensively, the judgment is carried out by the data of the sensor alone without giving a reference basis, and the obtained result is unreliable and unrepresentative; in addition, if the operation state is judged by means of the data of the sensor after the water pump is started, the conditions such as whether the operation direction of the water pump runner is on the Y axis, whether the runner is in abnormal sound during operation, and the like cannot be judged. Therefore, the factors considered when judging whether the water pump is in the normal state in the embodiment of the invention comprise waveform fluctuation, sound and water flow, and the water pump can be determined to be in the normal state only when the three aspects meet the preset conditions.
Based on any of the above embodiments, in the method, step 120 specifically includes:
step 121, substituting the acceleration waveform data and the speed waveform data of the current time period into a reference waveform function to obtain a function output result; wherein the reference waveform function is abstracted based on the reference acceleration waveform data and the reference velocity waveform data.
Specifically, the waveforms of the reference acceleration waveform data and the reference velocity waveform data are generally sinusoidal waveforms, and by abstracting them, a specific function, that is, a reference waveform function, can be obtained. And substituting the acceleration waveform data and the speed waveform data of the current time period into the reference waveform function to obtain a function output result, wherein the function output result can be used for representing whether the acceleration waveform data and the speed waveform data of the current time period accord with the change rule of the reference acceleration waveform data and the reference speed waveform data.
And step 122, if the function output result does not accord with the preset output result, performing waveform fitting on the acceleration waveform data and the speed waveform data of the current time period based on the reference waveform function, and determining a waveform difference ratio.
Here, the preset output result is a preset function output result meeting the change rule, and if the function output result does not meet the preset output result, it indicates that the acceleration waveform data and the velocity waveform data in the current time period do not meet the change rule of the reference acceleration waveform data and the reference velocity waveform data, and it is necessary to further determine the difference between the acceleration waveform data and the velocity waveform data in the current time period and the reference acceleration waveform data and the reference velocity waveform data.
The waveform difference ratio can be obtained by performing waveform fitting on the acceleration waveform data and the speed waveform data of the current time period based on the reference waveform function, wherein the waveform difference ratio is used for representing the percentage of the difference between the acceleration waveform data and the speed waveform data of the current time period and the reference waveform function.
Step 123, if the function output result meets a preset output result or the waveform difference ratio is less than or equal to a preset difference threshold, determining that the stable state of the water pump rotating wheel in the current time period is stable; otherwise, determining the stable state of the water pump rotating wheel in the current time period as unstable.
Specifically, the preset difference threshold is a preset maximum value of the waveform difference ratio in the steady state. For example, the preset difference threshold may be 4%, and if the waveform difference ratio is less than 4%, it is determined that the stable state of the water pump runner in the current time period is stable; and if the waveform difference ratio is more than or equal to 4%, determining that the stable state of the water pump rotating wheel in the current time period is unstable.
According to any of the above embodiments, the method further includes, before the step 120: and if the ratio of the difference value between the current data and the previous data to the previous data in the waveform data exceeds a preset difference ratio and the ratio of the difference value between the current data and the next data to the current data exceeds the preset difference ratio, replacing the current data with the average value of the previous data and the next data.
Here, the waveform data may be acceleration waveform data, or velocity waveform data. When the water pump runs daily, the acceleration sensing unit acquires waveform data of acceleration and speed, and abnormal values may exist, and the abnormal values have great influence on the processing of the waveform, so that the abnormal values need to be processed. The situation that the water pump has a problem in operation and the subsequent data have a problem continuously needs to be considered, and the current data needs to be compared with the previous data and the next data to judge whether the range of the difference is in a reasonable interval.
Here, the preset difference ratio is a threshold value of a ratio of preset differences. Further, the preset difference ratio includes a first preset difference ratio and a second preset difference ratio, the first preset difference ratio is smaller than the second preset difference ratio, the first preset difference ratio represents whether the current data is normal fluctuation, the second preset difference ratio represents whether the current data is an abnormal value, the first preset difference ratio is assumed to be 5%, the second preset difference ratio is assumed to be 40%, the difference between the previous data and the current data is calculated, and if the difference is within 5% of the previous data, the difference between the current data and the next data also needs to be within 5%. And after the difference value between the current data and the current data exceeds 5%, the difference value does not exceed 40%, calculating the difference value between the current data and the next data, and if the difference value still exceeds 5% and does not exceed 40%, indicating that the data fluctuation is normal, the data is not abnormal, and abnormal value processing is not required. And if the difference value between the previous data and the current data exceeds 40 percent and the difference value between the current data and the next data exceeds 40 percent, the current data is considered to be abnormal data, and abnormal value processing is required.
Here, the outlier processing replaces the current data with the mean of the previous and next data.
According to any of the above embodiments, the method further includes, after the step 120: and if the stable state of the water pump rotating wheel at the current moment is unstable, sending prompt information.
Here, the prompt information may be a reminding short message, a related WeChat reminder, or a scheme using a combination, and different reminding modes are used for different situations, which is not specifically limited in the embodiment of the present invention.
Based on any one of the above embodiments, in the method, the acceleration sensing unit includes a horizontal acceleration sensing unit and a vertical acceleration sensing unit, and the horizontal acceleration sensing unit and the vertical acceleration sensing unit respectively acquire the accelerations of the water pump runner in the horizontal direction and the vertical direction.
Based on any one of the above embodiments, a method for monitoring stability of a water pump runner includes the following steps:
firstly, the acceleration sensing units are respectively installed in the horizontal direction and the vertical direction of the water pump rotating wheel, and the embodiment of the invention does not limit the specific types of the acceleration sensing units.
Secondly, after the project is started, engineering personnel participate in the state judgment of the water pump, and judge whether the water pump is in a normal state or not according to the waveform fluctuation state output by the acceleration sensing unit, whether the water pump has abnormal sound or not and whether the water pump has abnormal water flow or not at intervals.
And after the state of the water pump is stabilized, storing the reference acceleration waveform data and the reference speed waveform data of the water pump in a normal state.
In the subsequent process of monitoring the stability of the water pump rotating wheel, acquiring acceleration waveform data and speed waveform data of the current time period in real time, judging the stable state of the water pump rotating wheel at the current moment, and providing corresponding reminding according to a preset reminding mode.
Based on any of the above embodiments, fig. 2 is a schematic structural diagram of a water pump runner stability monitoring device provided by an embodiment of the present invention, as shown in fig. 2, the device includes:
a data obtaining unit 210, configured to obtain acceleration waveform data and speed waveform data of the water pump runner at a current time period based on an acceleration sensing unit pre-installed on the water pump runner;
and the stability monitoring unit 220 is configured to determine the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period, and the reference acceleration waveform data and the reference speed waveform data in the normal state of the water pump, which are stored in advance.
According to the device provided by the embodiment of the invention, the stability of the water pump rotating wheel is monitored by measuring the acceleration and the speed of the water pump rotating wheel in real time, so that the automatic monitoring of the stability of the water pump rotating wheel is realized, extra manpower consumption is not needed, and convenience is provided for the operation, maintenance and management of a pump station unit.
Based on any embodiment above, the apparatus further comprises:
the state judging unit is used for judging whether the water pump is in a normal state or not at preset time intervals;
the recording unit is used for recording acceleration data and speed data at corresponding moments based on the acceleration sensing unit if the water pump is in a normal state;
and the reference construction unit is used for constructing reference acceleration waveform data and reference speed waveform data based on acceleration data and speed data of a plurality of continuous water pumps at corresponding moments in a normal state.
Based on any of the above embodiments, in the apparatus, the state determination unit is specifically configured to:
if the waveform fluctuation output by the acceleration sensing unit is smaller than a preset fluctuation threshold value and the water pump does not have abnormal sound and abnormal water flow, determining that the water pump is in a normal state;
otherwise, determining that the water pump is in an abnormal state.
Based on any of the above embodiments, in the apparatus, the stability monitoring unit 220 is specifically configured to:
substituting the acceleration waveform data and the speed waveform data of the current time period into a reference waveform function to obtain a function output result; wherein the reference waveform function is abstracted based on the reference acceleration waveform data and the reference velocity waveform data;
if the function output result does not accord with the preset output result, performing waveform fitting on the acceleration waveform data and the speed waveform data of the current time period based on the reference waveform function to determine a waveform difference ratio;
if the function output result meets a preset output result or the waveform difference ratio is less than or equal to a preset difference threshold, determining that the stable state of the water pump rotating wheel in the current time period is stable; otherwise, determining the stable state of the water pump rotating wheel in the current time period to be unstable.
Based on any embodiment above, the apparatus further comprises:
and the abnormal value processing unit is used for replacing the current data with the mean value of the previous data and the next data if the ratio of the difference value of the current data and the previous data to the previous data in the waveform data exceeds a preset difference ratio and the ratio of the difference value of the current data and the next data to the current data exceeds a preset difference ratio.
Based on any embodiment above, the apparatus further comprises:
and the prompting unit is used for sending out prompting information if the stable state of the water pump rotating wheel at the current moment is unstable.
Based on any one of the above embodiments, in the device, the acceleration sensing unit includes a horizontal acceleration sensing unit and a vertical acceleration sensing unit, and the horizontal acceleration sensing unit and the vertical acceleration sensing unit respectively acquire the accelerations of the water pump runner in the horizontal direction and the vertical direction.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 3, the electronic device may include: a processor (processor) 310, a communication Interface (communication Interface) 320, a memory (memory) 330 and a communication bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 communicate with each other via the communication bus 340. The processor 310 may call logic instructions in the memory 330 to perform the following method: acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel at the current time period based on an acceleration sensing unit pre-installed on the water pump rotating wheel; and determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the method provided in the foregoing embodiments when executed by a processor, and the method includes: acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel at the current time period based on an acceleration sensing unit pre-installed on the water pump rotating wheel; and determining the stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for monitoring the stability of a water pump runner is characterized by comprising the following steps:
acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel at the current time period based on an acceleration sensing unit pre-installed on the water pump rotating wheel;
determining the stable state of the water pump rotating wheel in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and the pre-stored reference acceleration waveform data and reference speed waveform data in the normal state of the water pump, and specifically comprises the following steps:
substituting the acceleration waveform data and the speed waveform data of the current time period into a reference waveform function to obtain a function output result; wherein the reference waveform function is abstracted based on the reference acceleration waveform data and the reference velocity waveform data;
if the function output result does not accord with the preset output result, performing waveform fitting on the acceleration waveform data and the speed waveform data of the current time period based on the reference waveform function to determine a waveform difference ratio;
if the function output result meets a preset output result or the waveform difference ratio is less than or equal to a preset difference threshold, determining that the stable state of the water pump rotating wheel in the current time period is stable; otherwise, determining the stable state of the water pump rotating wheel in the current time period to be unstable.
2. The method for monitoring the stability of the water pump rotor according to claim 1, wherein the determining the stable state of the water pump rotor at the current time interval based on the acceleration waveform data and the speed waveform data at the current time interval and the pre-stored reference acceleration waveform data and reference speed waveform data at the normal state of the water pump further comprises:
judging whether the water pump is in a normal state or not at preset time intervals;
if the water pump is in a normal state, recording acceleration data and speed data at corresponding moments based on the acceleration sensing unit;
and constructing reference acceleration waveform data and reference speed waveform data based on a plurality of continuous acceleration data and speed data of the water pump at corresponding moments in a normal state.
3. The method for monitoring the stability of the water pump rotating wheel according to claim 2, wherein the step of judging whether the water pump is in a normal state specifically comprises the steps of:
if the waveform fluctuation output by the acceleration sensing unit is smaller than a preset fluctuation threshold value and the water pump does not have abnormal sound and abnormal water flow, determining that the water pump is in a normal state;
otherwise, determining that the water pump is in an abnormal state.
4. The method for monitoring the stability of the water pump rotor according to claim 1, wherein the determining the stable state of the water pump rotor at the current time interval based on the acceleration waveform data and the speed waveform data at the current time interval and the pre-stored reference acceleration waveform data and reference speed waveform data at the normal state of the water pump further comprises:
and if the ratio of the difference value between the current data and the previous data to the previous data in the waveform data exceeds a preset difference ratio and the ratio of the difference value between the current data and the next data to the current data exceeds a preset difference ratio, replacing the current data with the mean value of the previous data and the next data.
5. The method for monitoring the stability of a water pump rotor according to any one of claims 1 to 4, wherein the determining the stable state of the water pump rotor for the current period of time based on the acceleration waveform data and the speed waveform data for the current period of time and reference acceleration waveform data and reference speed waveform data in a normal state of the water pump stored in advance further comprises:
and if the stable state of the water pump rotating wheel at the current moment is unstable, sending prompt information.
6. The method for monitoring the stability of the water pump runner according to any one of claims 1 to 4, wherein the acceleration sensing unit comprises a horizontal acceleration sensing unit and a vertical acceleration sensing unit, and the horizontal acceleration sensing unit and the vertical acceleration sensing unit respectively collect the acceleration of the water pump runner in the horizontal direction and the acceleration in the vertical direction.
7. The utility model provides a water pump runner stability monitoring devices which characterized in that includes:
the data acquisition unit is used for acquiring acceleration waveform data and speed waveform data of the water pump rotating wheel in the current time period based on an acceleration sensing unit which is pre-installed on the water pump rotating wheel;
the stability monitoring unit is configured to determine a stable state of the water pump runner in the current time period based on the acceleration waveform data and the speed waveform data in the current time period and reference acceleration waveform data and reference speed waveform data in a normal state of the water pump, which are stored in advance, and specifically includes:
substituting the acceleration waveform data and the speed waveform data of the current time period into a reference waveform function to obtain a function output result; wherein the reference waveform function is abstracted based on the reference acceleration waveform data and the reference velocity waveform data;
if the function output result does not accord with the preset output result, performing waveform fitting on the acceleration waveform data and the speed waveform data of the current time period based on the reference waveform function to determine a waveform difference ratio;
if the function output result meets a preset output result or the waveform difference ratio is less than or equal to a preset difference threshold, determining that the stable state of the water pump rotating wheel in the current time period is stable; otherwise, determining the stable state of the water pump rotating wheel in the current time period to be unstable.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the method for monitoring stability of a water pump rotor as claimed in any one of claims 1 to 6.
9. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method for monitoring stability of a water pump rotor as claimed in any one of claims 1 to 6.
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| CN112578188B (en) * | 2020-11-04 | 2023-07-07 | 深圳供电局有限公司 | Method, device, computer equipment and storage medium for generating electric quantity waveform |
| CN112770282B (en) * | 2020-12-23 | 2022-08-05 | 龙海建设集团有限公司 | Data processing system based on intelligent building Internet of things |
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Address after: Room 1205, Block A, Building 14, No. 99 Fulian Third Road, Baoshan District, Shanghai, 2019 Patentee after: Xinhao Chuangzhan Information Technology Co.,Ltd. Patentee after: ZHONGSHUI HUAIHE PLANNING AND DESIGN RESEARCH CO.,LTD. Address before: 215000 building 36, No.18 Dongchang Road, Suzhou Industrial Park, Jiangsu Province Patentee before: Suzhou Xinhao Information Technology Co.,Ltd. Patentee before: ZHONGSHUI HUAIHE PLANNING AND DESIGN RESEARCH CO.,LTD. |