CN114895163A - Cable inspection positioning device and method based on cable insulation performance - Google Patents
Cable inspection positioning device and method based on cable insulation performance Download PDFInfo
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- CN114895163A CN114895163A CN202210576012.3A CN202210576012A CN114895163A CN 114895163 A CN114895163 A CN 114895163A CN 202210576012 A CN202210576012 A CN 202210576012A CN 114895163 A CN114895163 A CN 114895163A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The embodiment of the application discloses a cable inspection positioning device and method based on cable insulation performance. According to the technical scheme provided by the embodiment of the application, the electric field signal and the magnetic field signal acquired by the electric field sensor and the magnetic field signal acquired by the magnetic field sensor are converted into monitoring data through the signal processor; comparing the monitoring data with a monitoring threshold to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and historical electromagnetic data to obtain a corresponding prediction result; and when the cable insulation performance of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on the pre-constructed cable three-dimensional model so as to position and prompt the cable inspection. By adopting the technical means, the cable insulation performance can be timely and accurately detected, the cable insulation performance detection precision is improved, and the cable operation and maintenance effect is optimized.
Description
Technical Field
The embodiment of the application relates to the technical field of intelligent cables, in particular to a cable inspection positioning device and method based on cable insulation performance.
Background
Electrical cables are a common facility for the transportation of electricity or information. At present, in order to better monitor the running state of the cable in real time and realize better operation and maintenance effects on the cable, the operation and maintenance setting of the cable tends to be more and more intelligent. Since the cable is usually laid in an underground pipeline, the laying environment is dark and humid, and thus the requirement for the insulation performance of the cable is high. The mode that temperature detected usually can be adopted, because cable insulating properties descends the back, the electric current leakage condition can appear in the cable, and leakage current can make the cable insulation layer generate heat. Therefore, whether the local insulation performance of the cable is reduced or not can be found by detecting the temperature, the abnormal operation of the cable can be effectively prevented, and the operation and maintenance effect of the cable is optimized.
However, the insulation performance of the cable tested by adopting the temperature detection method is easily affected by the ambient temperature, so that the test result is inaccurate, and further misjudgment is caused. Once the condition that the cable performance descends can not be timely and accurately detected, the cable insulation performance can further descend, and then the current leakage is aggravated, so that the cable has a ground fault, and the safe operation of the cable is influenced.
Disclosure of Invention
The embodiment of the application provides a cable inspection positioning device and method based on cable insulating property, which can timely and accurately detect cable insulating property, improve the accuracy of cable insulating property detection, and solve the technical problem of low accuracy of cable insulating property detection.
In a first aspect, an embodiment of the present application provides a cable inspection positioning device based on cable insulation performance, including:
the acquisition module is used for acquiring electric field signals acquired by an electric field sensor and magnetic field signals acquired by a magnetic field sensor, and converting the electric field signals and the magnetic field signals into monitoring data through a signal processor, wherein the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable;
the comparison module is used for extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result;
and the positioning module is used for marking the corresponding segmented line as a state to be inspected on a pre-constructed cable three-dimensional model when the cable insulation performance of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result so as to position and prompt the cable inspection, and the preset state is predefined according to the comparison result and/or the prediction result.
Further, still include:
and the temperature reporting module is used for acquiring temperature data of a corresponding cable segmented line, marking the temperature data on the corresponding segmented line of the cable three-dimensional model in real time, and outputting a fault alarm signal when the temperature data reaches a set temperature threshold value.
Further, the acquisition module converts the electric field signal and the magnetic field signal into the monitoring data after signal amplification and filtering processing is performed on the electric field signal and the magnetic field signal by a signal processor.
Further, the comparison module inputs the monitoring data and the historical electromagnetic data into a pre-constructed cable insulation performance prediction model to obtain a corresponding prediction result.
In a second aspect, an embodiment of the present application provides a cable inspection positioning method based on cable insulation performance, including:
acquiring an electric field signal acquired by an electric field sensor and a magnetic field signal acquired by a magnetic field sensor, and converting the electric field signal and the magnetic field signal into monitoring data through a signal processor, wherein the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable;
extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result;
and when the cable insulation performance of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on a pre-constructed cable three-dimensional model so as to position and prompt the cable inspection, wherein the preset state is predefined according to the comparison result and/or the prediction result.
Further, still include: the method comprises the steps of collecting temperature data of a corresponding cable segmented line, marking the temperature data on the corresponding segmented line of a three-dimensional cable model in real time, and outputting a fault alarm signal when the temperature data reaches a set temperature threshold value.
Further, the converting the electric field signal and the magnetic field signal into monitoring data by a signal processor includes:
and performing signal amplification and filtering processing on the electric field signal and the magnetic field signal through a signal processor, and converting the electric field signal and the magnetic field signal into the monitoring data.
Further, the predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result includes:
and inputting the monitoring data and the historical electromagnetic data into a pre-constructed cable insulation performance prediction model to obtain a corresponding prediction result.
In a third aspect, an embodiment of the present application provides an electronic device, including:
a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the cable inspection positioning method based on cable insulation performance according to the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions for performing the cable inspection positioning method based on cable insulation performance according to the first aspect when executed by a computer processor.
According to the embodiment of the application, the electric field signal and the magnetic field signal acquired by the electric field sensor and the magnetic field signal acquired by the magnetic field sensor are converted into monitoring data through the signal processor, and the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable; extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result; and when the insulation performance of the cable of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on the pre-constructed three-dimensional model of the cable so as to position and prompt the inspection of the cable, wherein the preset state is predefined according to the comparison result and/or the prediction result. By adopting the technical means, the cable insulation performance can be timely and accurately detected by detecting the electromagnetic detection data of the cable, the accuracy of detecting the cable insulation performance is improved, and the abnormal operation of the cable is timely positioned and alarmed, so that the safe operation of the cable is ensured, and the operation and maintenance effect of the cable is optimized.
Drawings
Fig. 1 is a flowchart of a cable inspection positioning method based on cable insulation performance according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a cable inspection system according to an embodiment of the present application;
fig. 3 is a flow chart of cable inspection state labeling in the first embodiment of the present application;
fig. 4 is a schematic structural diagram of a cable inspection positioning device based on cable insulation performance according to a second embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The first embodiment is as follows:
fig. 1 is a flowchart of a cable inspection positioning method based on cable insulation performance according to an embodiment of the present disclosure, where the cable inspection positioning method based on cable insulation performance provided in this embodiment may be executed by a cable inspection system, the cable inspection system may be implemented in a software and/or hardware manner, and the cable inspection system may be formed by two or more physical entities or may be formed by one physical entity.
The following description will be given taking the cable inspection system as an example of a main body for executing a cable inspection positioning method based on cable insulation performance. Referring to fig. 1, the cable inspection positioning method based on the cable insulation performance specifically includes:
s110, acquiring an electric field signal acquired by an electric field sensor and a magnetic field signal acquired by a magnetic field sensor, converting the electric field signal and the magnetic field signal into monitoring data through a signal processor, wherein the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable.
The cable inspection positioning method based on the cable insulation performance aims at accurately determining the circuit insulation performance of the corresponding cable segment line according to the monitoring data of the electric field and the magnetic field through the electric field and the magnetic field of each cable segment line along the monitoring cable, and improves the accuracy of cable insulation performance detection.
It can be understood that the laying environment of the cable is generally dark and humid (such as a groove), so that the cable is required to have high insulating performance so as to avoid the situation that the cable is affected by the humid environment to cause current leakage and generate ground fault. And after the insulating properties of the cable insulating layer are reduced, the resistance of the insulating layer is reduced, the electric field of the cable to the ground is enhanced, and the cable generates leakage current to the ground under the action of the electric field. When the cable insulation performance becomes very poor, the local field intensity of the cable can be caused, when the local field intensity is larger than the discharge critical value, the cable can possibly discharge air (namely corona occurs), the frequency of the discharge current is in a determined interval and is different from 50Hz, and therefore the cable section line insulation performance can be accurately judged according to the monitoring data by acquiring the electric field and magnetic field monitoring data of each cable section line.
Specifically, referring to fig. 2, a schematic diagram of a cable inspection system is provided. Through setting up electromagnetism monitoring module 11 at each segmentation circuit along the cable, electromagnetism monitoring module 11 includes electric field sensor and magnetic field sensor, gathers the electric field signal of affiliated cable segmentation circuit through electric field sensor of electromagnetism monitoring module 11, gathers the magnetic field signal of affiliated cable segmentation circuit through magnetic field sensor, and then reaches the system server 20 of this application embodiment with the signal of gathering, carries out the cable through this application system server and patrols and examines the location, confirms the position of waiting to patrol and examine. And then sends the location information to the inspection personnel's terminal device 30 to inform the inspection personnel of the corresponding cable segment line that needs to be manually inspected. Therefore, a better cable operation and maintenance effect is realized.
Wherein, can number each sectional line, electric field signal and magnetic field signal that this sectional line acquireed correspond need carry the serial number of this sectional line to when data is unusual, confirm the cable sectional line of the serial number that this data correspond, and then carry out the cable and patrol and examine the location, mark the cable sectional line that needs to patrol and examine.
And after an electric field signal and a magnetic field signal of a cable segmented line are acquired corresponding to one end of the electromagnetic monitoring module, the electric field signal and the magnetic field signal are subjected to signal amplification and filtering processing through a signal processor and then are converted into monitoring data.
For the initial electric field signal collected by the electric field sensor, the electric field signal is processed into an electric signal which can be identified by the system through an electric field signal processor, namely, electric field monitoring data. The electric field signal processor amplifies the electric signal through the signal amplification circuit to obtain an amplified electric signal; performing low-pass filtering processing on the amplified electric signal through a low-pass filtering circuit to obtain a filtered electric signal; and finally, performing AC-DC conversion on the filtered electric signal through an AC-DC conversion circuit to obtain final electric field monitoring data.
Similarly, the initial magnetic field signal collected by the magnetic field sensor is processed by the magnetic field signal processor into a magnetic signal that can be recognized by the system, i.e. magnetic field monitoring data. The magnetic field signal processor amplifies an initial magnetic field signal through a signal amplification circuit; and then, the magnetic field signal after the amplification processing is subjected to band-pass filtering through a band-pass filtering circuit, and final magnetic field monitoring data is output.
After the electric field and magnetic field monitoring data are obtained through the analog-to-digital conversion, the part of the monitoring data are reported to the system server 20, and the system server 20 can further evaluate the circuit insulation performance of the corresponding cable segment circuit based on the two parts of the monitoring data, so as to perform cable inspection positioning.
S120, extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result.
Further, when the system server evaluates the cable insulation performance of the corresponding cable segment line based on the monitoring data, the system server accurately determines the insulation performance of the cable by adopting a real-time comparison and combination performance prediction mode.
When real-time comparison is carried out, the corresponding comparison result is obtained by comparing the preset monitoring threshold value with the monitoring data. The preset monitoring threshold includes an electric field monitoring threshold and a magnetic field monitoring threshold. Before that, electric field monitoring data and magnetic field monitoring data when the cable insulation performance is abnormal are obtained through actual tests and are used as corresponding electric field monitoring threshold values and magnetic field monitoring threshold values for subsequent data comparison to determine comparison results.
Generally, when the electric field monitoring data exceeds the electric field monitoring threshold, the current cable insulation performance is considered abnormal. Similarly, when the magnetic field monitoring data exceeds the magnetic field monitoring threshold, the current cable insulation performance is considered abnormal. It can be understood that when the insulation performance of the cable is deteriorated, the two parts of monitoring data are raised, so that the monitoring data exceed the standard and reach the monitoring threshold. Therefore, the two parts of monitoring data are compared to perform subsequent cable insulation performance evaluation according to the comparison result.
On the other hand, when the cable insulation performance is predicted, the monitoring data and the historical electromagnetic data are input into a pre-constructed cable insulation performance prediction model, and a corresponding prediction result is obtained.
The cable insulation performance prediction model is constructed through a linear regression mathematical model based on a machine learning algorithm to carry out prediction analysis. The monitoring data comprise real-time electric field monitoring data and magnetic field monitoring data, the historical electromagnetic data comprise historical electric field data and historical magnetic field data, and cable insulation performance prediction models of the electric field monitoring data and the magnetic field monitoring data are respectively constructed to respectively predict the monitoring data, namely prediction results, of the cable section lines corresponding to the next monitoring period. And then according to the prediction result, the insulation performance of the next monitoring period of the corresponding cable segmented line can be evaluated.
The cable insulation performance prediction model comprises the following steps:
f(x i )＝w 1 x 1 +w 2 x 2 +...+w n x n
wherein [ w 1 ,w 2 ...,w n ]Influence coefficients of electric field or magnetic field monitoring data collected for different time nodes on the prediction result are constructed according to the rule of historical electromagnetic data, [ x ] 1 ,x 2 ...,x n ]Electric or magnetic field monitoring data, f (x), collected for different time nodes i ) Is a predicted value corresponding to the monitored data.
Specifically, taking prediction of the electric field monitoring data as an example, by inputting the real-time electric field monitoring data and the historical electric field monitoring data into a cable insulation performance prediction model based on the electric field monitoring data, a prediction value corresponding to the electric field monitoring data, that is, a prediction result of the electric field monitoring data, can be obtained. Similarly, the real-time magnetic field monitoring data and the historical magnetic field monitoring data are input into a cable insulation performance prediction model based on the magnetic field monitoring data, and a prediction value corresponding to the magnetic field data, namely a prediction result of the magnetic field monitoring data, is output.
S130, when the insulation performance of the cable of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on a pre-constructed three-dimensional model of the cable so as to position and prompt the inspection of the cable, wherein the preset state is predefined according to the comparison result and/or the prediction result.
Finally, based on the comparison result and/or the prediction result, whether the cable joint edge performance is in the predefined state can be judged. Before this, the predefined state is set according to the comparison and/or prediction of the cable segment line. That is, the predefined state can be configured by combining the comparison result and the prediction result, or can be configured by selecting one of the two results. The predefined state represents that the insulation performance of the current cable sectional line is abnormal, and inspection personnel needs to be informed to conduct inspection in time.
For example, when the electric field monitoring data exceeds the electric field monitoring threshold value according to the comparison result, the cable insulation performance of the current corresponding segmented line is determined to be in a preset state; or when the prediction result of the electric field monitoring data exceeds the electric field monitoring threshold value, the cable insulation performance of the current corresponding segmented line is determined to be in a preset state. Similarly, it may also be determined that the cable insulation performance of the current corresponding segment line is in the preset state when the real-time magnetic field monitoring data or the prediction result of the magnetic field monitoring data reaches the magnetic field monitoring threshold. And when the electric field detection data and the magnetic field monitoring data exceed the monitoring threshold value at the same time, determining that the cable insulation performance of the current corresponding segmented line is in a preset state. Or when the comparison result and the prediction result exceed the corresponding monitoring threshold value at the same time, determining that the cable insulation performance of the current corresponding segmented line is in a preset state. The determination standard of the preset state is not fixedly limited in the embodiment of the application, and is not described herein again.
Furthermore, when the insulation performance of the cable corresponding to the segmented line at present is determined to be in a predefined state, it is indicated that the insulation performance of the segmented line of the cable is poor, and inspection personnel need to be informed to go to inspection and maintenance in time, so that the conditions that the insulation performance of the cable is further deteriorated, the cable runs abnormally and the like are avoided.
Based on the method, the corresponding segmented lines are marked as the states to be inspected on the constructed three-dimensional cable model, so that the operation and maintenance personnel can be positioned and prompted for cable inspection. The operation and maintenance personnel can see the state information to be inspected marked on the position of the corresponding segmented line on the three-dimensional model of the cable on the display terminal of the system server, so that the segmented line of the cable is determined to be the position to be inspected, and then the corresponding inspection personnel is arranged to inspect the cable on the corresponding segmented line of the cable. For example, the location information is sent to the inspection personnel's terminal equipment to inform the inspection personnel of the corresponding cable segment lines that need to be manually detected.
And constructing a three-dimensional model of the intelligent cable according to the pre-acquired three-dimensional point cloud data of the intelligent cable. And subsequently, when the state to be inspected is marked, determining the marked position of the state to be inspected according to the cable line number and the subsection number information corresponding to the monitoring data, and marking corresponding to the position.
In one embodiment, the temperature data of the corresponding cable segmented line is collected, the temperature data is labeled on the corresponding segmented line of the three-dimensional cable model in real time, and when the temperature data reaches a set temperature threshold value, a fault alarm signal is output. It can be understood that after the insulation performance of the cable is reduced, the cable can generate current leakage, and the leakage current can cause the insulation layer of the cable to generate heat. Therefore, by detecting the temperature data, the condition that the insulation performance of the cable section line is reduced at present can be further determined. The mode that adopts temperature data to detect to as this application based on the compensation mechanism of electromagnetic monitoring data aassessment cable insulation performance, realize more accurate, comprehensive cable insulation performance aassessment. Moreover, the temperature data are marked on the three-dimensional model, so that operation and maintenance personnel can conveniently check the temperature data. When the temperature data exceeds the standard, operation and maintenance personnel can be timely informed to process through a fault alarm signal, and the operation and maintenance effect of the cable is further optimized.
In one embodiment, the fault early warning can be performed based on the prediction result of the monitoring data. It can be understood that, the fault early warning may establish an early warning prompt standard in advance, the early warning prompt standard defines an early warning prompt index of the monitoring data prediction result, and the monitoring data prediction result exceeds the corresponding early warning prompt index, which indicates that the operation fault early warning prompt of the corresponding cable segment line needs to be performed.
For example, an upper limit of monitoring data is defined (the upper limit is generally higher than a monitoring threshold value to predict the condition of serious cable insulation performance deterioration), the predicted value is compared with the corresponding upper limit of the monitoring data according to the prediction result obtained by the cable insulation performance prediction model, and if the prediction result is greater than the upper limit of the monitoring data, an early warning prompt corresponding to the cable section line is output based on the prediction result.
Further, in an embodiment, early warning indication indexes of different levels may be set corresponding to the one-class monitoring data prediction result, and subsequently, when early warning indication is performed, early warning indication of a corresponding level is output according to the early warning indication index of the monitoring data prediction result exceeding the limit. For example, A, B and C are set as early warning indicators, corresponding to the first-level early warning, the second-level early warning and the third-level early warning. The higher the early warning level, the more serious the predicted cable insulation performance fault is. Based on the method, when the early warning prompt is determined according to the comparison of the early warning prompt indexes and the predicted values, the corresponding early warning level can be clearly prompted, and the operation and maintenance personnel can conveniently know the serious condition of the current operation fault early warning.
As described above, referring to fig. 3, by acquiring an electric field signal collected by an electric field sensor and a magnetic field signal collected by a magnetic field sensor, the electric field signal and the magnetic field signal are converted into monitoring data by a signal processor, and the electric field sensor and the magnetic field sensor are arranged corresponding to each segment line of the cable; extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result; and when the insulation performance of the cable of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on the pre-constructed three-dimensional model of the cable so as to position and prompt the inspection of the cable, wherein the preset state is predefined according to the comparison result and/or the prediction result. By adopting the technical means, the cable insulation performance can be timely and accurately detected by detecting the electromagnetic detection data of the cable, the accuracy of detecting the cable insulation performance is improved, and the abnormal operation of the cable is timely positioned and alarmed, so that the safe operation of the cable is ensured, and the operation and maintenance effect of the cable is optimized.
Example two:
on the basis of the foregoing embodiment, fig. 4 is a schematic structural diagram of a cable inspection positioning device based on cable insulation performance according to a second embodiment of the present application. Referring to fig. 4, the cable inspection positioning device based on the cable insulation performance provided in this embodiment specifically includes: an acquisition module 21, a comparison module 22 and a positioning module 23.
The acquisition module 21 is configured to acquire an electric field signal acquired by an electric field sensor and a magnetic field signal acquired by a magnetic field sensor, convert the electric field signal and the magnetic field signal into monitoring data through a signal processor, and the electric field sensor and the magnetic field sensor are arranged corresponding to each segment line of a cable;
the comparison module 22 is configured to extract a preset monitoring threshold and historical electromagnetic data of a corresponding segment line, compare the monitoring threshold with the monitoring data to obtain a comparison result, and predict the cable insulation performance of the corresponding segment line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result;
the positioning module 23 is configured to mark the corresponding segment line as a state to be inspected on a pre-constructed cable three-dimensional model when it is determined that the cable insulation performance of the current corresponding segment line is in a preset state based on the comparison result and/or the prediction result, so as to perform positioning and prompting of cable inspection, where the preset state is predefined according to the comparison result and/or the prediction result.
Specifically, this positioner is patrolled and examined to cable based on cable insulating properties still includes:
and the temperature reporting module is used for acquiring temperature data of a corresponding cable segmented line, marking the temperature data on the corresponding segmented line of the cable three-dimensional model in real time, and outputting a fault alarm signal when the temperature data reaches a set temperature threshold value.
Specifically, the obtaining module 21 is configured to perform signal amplification and filtering processing on the electric field signal and the magnetic field signal through a signal processor, and then convert the electric field signal and the magnetic field signal into the monitoring data.
Specifically, the comparison module 22 is configured to input the monitoring data and the historical electromagnetic data into a pre-constructed cable insulation performance prediction model by the comparison module, so as to obtain a corresponding prediction result.
The electric field signal and the magnetic field signal are converted into monitoring data through the signal processor by acquiring the electric field signal acquired by the electric field sensor and the magnetic field signal acquired by the magnetic field sensor, and the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable; extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result; and when the insulation performance of the cable of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on the pre-constructed three-dimensional model of the cable so as to position and prompt the inspection of the cable, wherein the preset state is predefined according to the comparison result and/or the prediction result. By adopting the technical means, the cable insulation performance can be timely and accurately detected by detecting the electromagnetic detection data of the cable, the accuracy of detecting the cable insulation performance is improved, and the abnormal operation of the cable is timely positioned and alarmed, so that the safe operation of the cable is ensured, and the operation and maintenance effect of the cable is optimized.
The cable inspection positioning device based on the cable insulation performance provided by the second embodiment of the application can be used for executing the cable inspection positioning method based on the cable insulation performance provided by the first embodiment of the application, and has corresponding functions and beneficial effects.
Example three:
an embodiment of the present application provides an electronic device, and with reference to fig. 5, the electronic device includes: a processor 31, a memory 32, a communication module 33, an input device 34, and an output device 35. The number of processors in the electronic device may be one or more, and the number of memories in the electronic device may be one or more. The processor, memory, communication module, input device, and output device of the electronic device may be connected by a bus or other means.
The memory 32 is a computer readable storage medium, and can be used for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the cable inspection positioning method based on cable insulation performance according to any embodiment of the present application (for example, the obtaining module, the comparing module, and the positioning module in the cable inspection positioning apparatus based on cable insulation performance). The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory located remotely from the processor, and these remote memories may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication module 33 is used for data transmission.
The processor 31 executes software programs, instructions and modules stored in the memory so as to execute various functional applications and data processing of the device, namely, the cable inspection positioning method based on the cable insulation performance is realized.
The input device 34 may be used to receive entered numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 35 may include a display device such as a display screen.
The electronic device provided by the embodiment can be used for executing the cable inspection positioning method based on the cable insulation performance, and has corresponding functions and beneficial effects.
Example four:
the embodiment of the present application further provides a storage medium containing computer executable instructions, which when executed by a computer processor, are configured to perform a cable inspection positioning method based on cable insulation performance, where the cable inspection positioning method based on cable insulation performance includes: acquiring an electric field signal acquired by an electric field sensor and a magnetic field signal acquired by a magnetic field sensor, and converting the electric field signal and the magnetic field signal into monitoring data through a signal processor, wherein the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable; extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result; and when the cable insulation performance of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on a pre-constructed cable three-dimensional model so as to position and prompt the cable inspection, wherein the preset state is predefined according to the comparison result and/or the prediction result.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations, e.g., in different computer systems connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium containing the computer-executable instructions provided in the embodiments of the present application is not limited to the cable inspection positioning method based on the cable insulation performance described above, and may also perform related operations in the cable inspection positioning method based on the cable insulation performance provided in any embodiments of the present application.
The cable inspection positioning device, the storage medium and the electronic device based on the cable insulation performance provided in the above embodiments may perform the cable inspection positioning method based on the cable insulation performance provided in any embodiments of the present application, and reference may be made to the cable inspection positioning method based on the cable insulation performance provided in any embodiments of the present application without detailed technical details described in the above embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. The utility model provides a positioner is patrolled and examined to cable based on cable insulating properties which characterized in that includes:
the acquisition module is used for acquiring electric field signals acquired by an electric field sensor and magnetic field signals acquired by a magnetic field sensor, and converting the electric field signals and the magnetic field signals into monitoring data through a signal processor, wherein the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable;
the comparison module is used for extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result;
and the positioning module is used for marking the corresponding segmented line as a state to be inspected on a pre-constructed cable three-dimensional model when the cable insulation performance of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result so as to position and prompt the cable inspection, and the preset state is predefined according to the comparison result and/or the prediction result.
2. The cable inspection locating device based on cable insulation performance according to claim 1, further comprising:
and the temperature reporting module is used for acquiring temperature data of a corresponding cable segmented line, marking the temperature data on the corresponding segmented line of the cable three-dimensional model in real time, and outputting a fault alarm signal when the temperature data reaches a set temperature threshold value.
3. The cable inspection positioning device based on the insulation performance of the cable according to claim 1, wherein the acquisition module converts the electric field signal and the magnetic field signal into the monitoring data after signal amplification and filtering processing is performed on the electric field signal and the magnetic field signal by a signal processor.
4. The cable inspection positioning device based on the insulation performance of the cable according to claim 1, wherein the comparison module inputs the monitoring data and the historical electromagnetic data into a pre-constructed cable insulation performance prediction model to obtain a corresponding prediction result.
5. The utility model provides a cable patrols and examines positioning method based on cable insulating properties which characterized in that includes:
acquiring an electric field signal acquired by an electric field sensor and a magnetic field signal acquired by a magnetic field sensor, and converting the electric field signal and the magnetic field signal into monitoring data through a signal processor, wherein the electric field sensor and the magnetic field sensor are arranged corresponding to each segmented line of the cable;
extracting a preset monitoring threshold value and historical electromagnetic data of a corresponding segmented line, comparing the monitoring threshold value with the monitoring data to obtain a comparison result, and predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result;
and when the cable insulation performance of the current corresponding segmented line is judged to be in a preset state based on the comparison result and/or the prediction result, marking the corresponding segmented line as a state to be inspected on a pre-constructed cable three-dimensional model so as to position and prompt the cable inspection, wherein the preset state is predefined according to the comparison result and/or the prediction result.
6. The cable inspection positioning method based on the cable insulation performance according to claim 5, further comprising:
the method comprises the steps of collecting temperature data of a corresponding cable segmented line, marking the temperature data on the corresponding segmented line of a three-dimensional cable model in real time, and outputting a fault alarm signal when the temperature data reaches a set temperature threshold value.
7. The cable inspection tour positioning method based on cable insulation performance of claim 5, wherein the converting the electric field signal and the magnetic field signal into monitoring data through a signal processor comprises:
and performing signal amplification and filtering processing on the electric field signal and the magnetic field signal through a signal processor, and converting the electric field signal and the magnetic field signal into the monitoring data.
8. The cable inspection positioning method based on the cable insulation performance according to claim 5, wherein the predicting the cable insulation performance of the corresponding segmented line based on the monitoring data and the historical electromagnetic data to obtain a corresponding prediction result comprises:
and inputting the monitoring data and the historical electromagnetic data into a pre-constructed cable insulation performance prediction model to obtain a corresponding prediction result.
9. An electronic device, comprising:
a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the cable inspection positioning method based on cable insulation performance of any of claims 5-8.
10. A storage medium containing computer executable instructions for performing the cable insulation performance based cable inspection positioning method of any one of claims 5 to 8 when executed by a computer processor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115389867A (en) * | 2022-10-26 | 2022-11-25 | 北京千尧新能源科技开发有限公司 | Submarine cable state monitoring method and system integrating multiple signals |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115389867A (en) * | 2022-10-26 | 2022-11-25 | 北京千尧新能源科技开发有限公司 | Submarine cable state monitoring method and system integrating multiple signals |
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