Pollution flashover creepage online monitoring method and system based on photoelectric induction and storage medium

Abstract

The invention discloses a pollution flashover creepage on-line monitoring method based on photoelectric induction, and the method comprises the steps: S1, installing a video monitoring device employing photoelectric induction in an insulator pollution flashover creepage region, and configuring the parameters of the video monitoring device; s3, installing a leakage current detection device near the video monitoring device; s5, a threshold value of the leakage current is set, when the leakage current exceeds the threshold value, the video monitoring device automatically adjusts a preset bit to start to shoot a pollution flashover creepage video, and the video is transmitted back to the monitoring center; step S7, the monitoring center analyzes and processes the returned video; and step S9, feeding back the position, degree and leakage current data of pollution flashover creepage to related departments so as to formulate corresponding treatment measures. The invention further discloses a corresponding system and a storage medium. By implementing the invention, the monitoring precision and the positioning accuracy can be improved, so that the safety of a power system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of creepage monitoring, and in particular to an online monitoring method, system and storage medium for pollution flashover creepage based on photoelectric induction. Background Art

[0002] With the rapid development of my country's power industry, the problem of pollution flashover and creepage on insulators has become increasingly prominent. Pollution flashover and creepage refers to the conductive channel formed in a humid environment after the surface of the insulator is contaminated, which causes the surface voltage of the insulator to decrease, thereby affecting the safe operation of the power system. Pollution flashover and creepage problems not only cause equipment damage, but may also cause safety accidents such as fire and explosion, which has a serious impact on the stability of the power grid and the reliability of power supply.

[0003] At present, the main monitoring methods for pollution flashover and creepage are manual inspection, infrared thermal imager detection and capacitive online monitoring, etc. Manual inspection is time-consuming and labor-intensive, and it is difficult to achieve real-time monitoring; infrared thermal imager detection is greatly affected by factors such as ambient temperature and humidity, and has low detection accuracy; capacitive online monitoring is easily affected by external interference, and fault location is difficult. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method, system and storage medium for online monitoring of pollution flashover and creepage based on photoelectric induction, which can improve the monitoring accuracy and positioning accuracy, thereby improving the safety of the power system.

[0005] In order to solve the above technical problems, as a first aspect of the present invention, a method for online monitoring of pollution flashover and creepage based on photoelectric induction is provided, and the method comprises the following steps:

[0006] Step S1, installing a video monitoring device using photoelectric sensing in the flashover and creepage area of ​​the insulator to ensure that the device covers the flashover and creepage area; and configuring the parameters of the video monitoring device, including resolution and frame rate, according to the type of insulator and the use environment;

[0007] Step S3, installing a leakage current detection device near the video monitoring device to monitor the magnitude of the insulator leakage current in real time; and connecting the video monitoring device to the leakage current detection device through a cable;

[0008] Step S5, setting a threshold of leakage current according to actual conditions. When the leakage current exceeds the threshold, the video monitoring device automatically adjusts the preset position to start shooting the video of pollution flashover and creepage, and transmits the video back to the monitoring center;

[0009] Step S7: The monitoring center analyzes the returned video and uses image recognition technology to identify the location and degree of pollution flashover and creepage; and processes the leakage current data to calculate the average value, maximum value, and minimum value parameters of the leakage current;

[0010] Step S9, feeding back the location, degree and leakage current data of the pollution flashover and creepage to the relevant departments, and formulating corresponding treatment measures according to the analysis results.

[0011] Optionally, in step S1, the installation height of the device is determined to be the height of the insulator when the pollution flashover and creepage occur plus a first fixed value, so as to ensure that the complete pollution flashover and creepage process is captured; the coverage angle of the device is at least 180 degrees, so as to cover all directions in which the pollution flashover and creepage may occur;

[0012] Determine the required resolution and frame rate parameters to meet different monitoring needs;

[0013] According to the lighting conditions, adjust the white balance and exposure compensation parameters to ensure the clarity and smoothness of the video data.

[0014] Determine the required resolution and frame rate parameters to meet different monitoring needs;

[0015] According to the lighting conditions, adjust the white balance and exposure compensation parameters to ensure the clarity and smoothness of the video data.

[0016] Optionally, step S3 includes:

[0017] Determine the installation location of the leakage current detection device so that the magnitude of the insulator leakage current can be monitored in real time;

[0018] Choose to install it at a fixed distance below the video monitoring device;

[0019] According to the magnitude of the leakage current, configure the range and sensitivity parameters of the detection device to ensure that the magnitude of the leakage current can be accurately measured;

[0020] And choose the appropriate cable type and length to ensure the stability and reliability of signal transmission.

[0021] Optionally, the step S5 specifically includes:

[0022] Collect historical data on insulator flashover and creepage, including leakage current, video shooting time, and flashover and creepage degree information;

[0023] Analyze the collected historical data to understand the laws and characteristics of insulator pollution flashover and creepage; by analyzing the historical data, derive the relationship between leakage current and pollution flashover and creepage;

[0024] According to the analysis results, determine a reasonable leakage current threshold; this threshold should be able to accurately reflect the actual situation of insulator pollution flashover and creepage, while avoiding false alarms and missed alarms;

[0025] Apply the determined threshold to actual monitoring and observe the response of the video monitoring device; if it is found that the threshold is set improperly, it is necessary to adjust the threshold in time to ensure the accuracy of monitoring;

[0026] The threshold is adjusted according to the actual monitoring results and feedback. During the adjustment process, the correlation between the reference leakage current and the pollution flashover creepage current, as well as the monitoring effect under different thresholds are considered;

[0027] Through multiple adjustments and tests, the threshold setting is gradually optimized; finally, a threshold that can accurately reflect the actual situation of insulator pollution flashover and creepage is determined and applied in actual monitoring;

[0028] Where: The calculation formula for the leakage current threshold is:

[0029] Threshold = α + β × average leakage current:

[0030] Among them, α is the intercept term, which reflects the basic level of the leakage current threshold; β is the slope coefficient, which reflects the relationship between the leakage current and the threshold; the leakage current average is the average value of the historical leakage current data set;

[0031] The correlation calculation formula between leakage current and pollution flashover creepage is:

[0032] Correlation coefficient = product of covariance / standard deviation;

[0033] Among them, the covariance is the covariance of the difference between the leakage current and the pollution flashover creepage level; the product of the standard deviation is the product of the standard deviation of the leakage current and the standard deviation of the pollution flashover creepage level.

[0034] Optionally, the step S5 further comprises:

[0035] According to the threshold setting of leakage current, configure the automatic shooting function of the video monitoring device;

[0036] When the leakage current exceeds the threshold, the video monitoring device starts to automatically shoot;

[0037] The captured video is transmitted back to the monitoring center via a cable to store and process the video data. Optionally, the step S7 includes:

[0038] Pre-process the returned video, including denoising and image enhancement, to improve image quality;

[0039] Use image recognition technology, including edge detection and feature extraction, to analyze the video to identify the location and extent of flashover and creepage.

[0040] Use edge detection technology to detect the edge position of pollution flashover and creepage, and then use feature extraction technology to further identify the degree of pollution flashover and creepage;

[0041] Preprocess the returned leakage current data, including denoising and filtering, to improve the data quality;

[0042] The data is processed using data processing software to calculate the average, maximum and minimum parameters of the leakage current.

[0043] Optionally, in step S9, the analysis results are organized into a report or chart to intuitively display the status of pollution flashover and creepage and leakage current data; then, the report or chart is sent to the power company and maintenance department so that timely measures can be taken.

[0044] Correspondingly, as another aspect of the present invention, a pollution flashover and creepage online monitoring system based on photoelectric sensing is also provided, which at least includes: a video monitoring device using photoelectric sensing, a leakage current detection device electrically connected to the video monitoring device, and a monitoring center that remotely communicates with the video monitoring device and the leakage current detection device; wherein, the system executes an online pollution flashover and creepage online monitoring method based on photoelectric sensing as described above during operation.

[0045] Correspondingly, as another aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the aforementioned method for online monitoring of pollution flashover and creepage based on photoelectric sensing are implemented.

[0046] The implementation of the embodiments of the present invention has the following beneficial effects:

[0047] The present invention provides an online monitoring method, system and storage medium for pollution flashover and creepage based on photoelectric induction. By collecting and analyzing historical data, the laws and characteristics of pollution flashover and creepage of insulators can be deeply understood, so as to accurately reflect the actual situation of pollution flashover and creepage of insulators. Determining a reasonable leakage current threshold can effectively avoid false alarms and missed alarms, and improve the accuracy of monitoring. Testing and adjusting the threshold can ensure the real-time and accuracy of the monitoring system, so as to timely discover and deal with problems. Through multiple adjustments and tests, the threshold setting can be gradually optimized, which can more accurately reflect the actual situation of pollution flashover and creepage of insulators, and provide a scientific basis for subsequent monitoring and processing. The implementation of the present invention can improve the accuracy, real-time and scientific nature of monitoring, and provide a strong guarantee for the safe operation of the power system.

[0048] At the same time, in the present invention, after the front-end monitors that the creepage signal and the leakage current reach a threshold, the preset position is automatically adjusted to start shooting, thereby avoiding the energy consumption and bandwidth usage of the video being turned on continuously for 24 hours. This not only saves costs, but also improves the sustainability of the system. The multifunctional video monitoring device connects the leakage current device with the video online monitoring, realizes real-time monitoring of the insulator leakage current, and synchronously transmits video information back. This real-time monitoring and response capability helps to timely discover potential pollution flashover and creepage problems, so that measures can be taken to avoid accidents. By connecting the video monitoring device with the leakage current detection device, the optical signal and electrical signal of pollution flashover and creepage can be monitored simultaneously, which improves the comprehensiveness and accuracy of monitoring. This comprehensive monitoring method helps to identify and handle problems more effectively. Through real-time monitoring and timely response, damage to insulators caused by pollution flashover and creepage can be effectively prevented, thereby ensuring the safe operation of the power system. This method helps to reduce the risk of failure of the power system caused by pollution flashover and creepage, and improve the reliability of power supply.

[0049] In summary, the implementation of the present invention can improve the monitoring accuracy and positioning accuracy, thereby improving the safety of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0051] Figure 1 It is a main process diagram of an embodiment of a method for online monitoring of pollution flashover and creepage based on photoelectric sensing provided by the present invention. DETAILED DESCRIPTION

[0052] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] like Figure 1 FIG. 1 is a schematic diagram showing the main process of an embodiment of a method for online monitoring of flashover and creepage based on photoelectric induction provided by the present invention. In this embodiment, the method comprises at least the following steps:

[0054] Step S1, installing a photoelectric sensing video monitoring device: installing a photoelectric sensing video monitoring device in the insulator pollution flashover and creepage area to ensure that the device can cover the pollution flashover and creepage area; and configuring monitoring device parameters: configuring the parameters of the video monitoring device, such as resolution, frame rate, etc., according to the type of insulator and the use environment, to meet different monitoring requirements;

[0055] Step S3, installing a leakage current detection device near the video monitoring device to monitor the magnitude of the insulator leakage current in real time; and connecting the video monitoring device and the leakage current detection device through a cable to ensure that the signal can be transmitted in real time;

[0056] Step S5, setting a threshold of leakage current according to actual conditions. When the leakage current exceeds the threshold, the video monitoring device starts to shoot the video of pollution flashover and creepage. When the leakage current reaches the threshold, the video monitoring device automatically adjusts the preset position to start shooting the video of pollution flashover and creepage, and transmits the video back to the monitoring center.

[0057] Step S7: The monitoring center analyzes the returned video and uses image recognition technology to identify the location and degree of pollution flashover and creepage. The monitoring center also processes the leakage current data and calculates the average value, maximum value, minimum value and other parameters of the leakage current for further analysis.

[0058] Step S9, feeding back the location, degree and leakage current data of the pollution flashover and creepage to the relevant departments, and formulating corresponding treatment measures according to the analysis results to prevent the pollution flashover and creepage from damaging the insulators.

[0059] Specifically, in step S1, the installation height of the device should be at least the height of the insulator when the pollution flashover and creepage occur plus one meter to ensure that the complete pollution flashover and creepage process is captured. The coverage angle of the device should be at least 180 degrees to cover all directions in which pollution flashover and creepage may occur.

[0060] At the same time, in step S1, the required resolution, frame rate and other parameters are first determined to meet different monitoring requirements. 1920x1080 resolution and 30fps frame rate are selected. Then, according to the lighting conditions, parameters such as white balance and exposure compensation are adjusted to ensure the clarity and smoothness of the video data.

[0061] In step S3, first, determine the installation position of the leakage current detection device so that the magnitude of the insulator leakage current can be monitored in real time. Choose to install it 2 meters below the video monitoring device. Then, according to the magnitude of the leakage current, configure the parameters such as the range and sensitivity of the detection device to ensure that the magnitude of the leakage current can be accurately measured. Select the range to be 0.1mA to 10mA and the sensitivity to be 0.1mA.

[0062] At the same time, select the appropriate cable type and length to ensure the stability and reliability of signal transmission. Select a cable with a transmission rate of 100Mbps. Then connect and fix the cable to ensure that the connection is firm to avoid loosening due to vibration or wind.

[0063] In step S5, the specific method includes:

[0064] Collect historical data: Collect historical data on pollution flashover and creepage of insulators, including leakage current, time of video shooting, degree of pollution flashover and creepage, etc.

[0065] Analyze historical data: Analyze the collected historical data to understand the laws and characteristics of insulator pollution flashover and creepage. By analyzing historical data, the relationship between leakage current and pollution flashover and creepage can be obtained.

[0066] Determine the threshold: According to the analysis results, determine a reasonable leakage current threshold. This threshold should be able to accurately reflect the actual situation of insulator pollution flashover and creepage, while avoiding false alarms and missed alarms.

[0067] Test threshold: Apply the determined threshold to actual monitoring and observe the response of the video monitoring device. If the threshold is found to be improperly set, it is necessary to adjust the threshold in time to ensure the accuracy of monitoring.

[0068] Threshold adjustment: adjust the threshold according to the actual monitoring results and feedback. During the adjustment process, you can refer to the correlation between leakage current and pollution flashover and creepage, as well as the monitoring effect under different thresholds.

[0069] Threshold optimization: Through multiple adjustments and tests, the threshold setting is gradually optimized. Finally, a threshold that can accurately reflect the actual situation of insulator pollution flashover and creepage is determined and applied in actual monitoring. ;

[0070] Where: The calculation formula for the leakage current threshold is:

[0071] Threshold = α + β × average leakage current:

[0072] Where: α is the intercept term, which reflects the basic level of the leakage current threshold; β is the slope coefficient, which reflects the relationship between the leakage current and the threshold; the leakage current average is the average value of the historical leakage current data set.

[0073] The correlation calculation formula between leakage current and pollution flashover creepage is:

[0074] Correlation coefficient = covariance / standard deviation; where covariance is the covariance of the difference between the leakage current and the pollution flashover creepage level; the product of the standard deviation is the product of the standard deviation of the leakage current and the standard deviation of the pollution flashover creepage level.

[0075] At the same time, according to the threshold setting of the leakage current, the automatic shooting function of the video monitoring device is configured. The leakage current threshold is set to 1mA. When the leakage current exceeds 1mA, the video monitoring device starts to shoot automatically. Then, the shot video is transmitted back to the monitoring center through the cable for video data storage and processing.

[0076] In step S7, the returned video is first preprocessed, such as denoising, image enhancement, etc., to improve the image quality. Then, the video is analyzed using image recognition technology, such as edge detection, feature extraction, etc., to identify the location and degree of dirty flashover and creepage. The edge location of dirty flashover and creepage can be detected by edge detection technology, and the degree of dirty flashover and creepage can be further identified by feature extraction technology.

[0077] The returned leakage current data is then preprocessed, such as denoising and filtering, to improve the data quality. Then, data processing software, such as Excel and Python, is used to process the data and calculate the average value, maximum value, minimum value and other parameters of the leakage current. In a specific example, the average value of the leakage current is calculated to be 1mA, the maximum value is 5mA, and the minimum value is 0.5mA.

[0078] In step S9, the analysis results are organized into reports or charts to visually display the status of pollution flashover and leakage current data. Then, the report or chart is sent to relevant departments, such as power companies, maintenance departments, etc., so that timely measures can be taken. The report is sent to the power company, which formulates corresponding treatment measures, such as replacing insulators and strengthening maintenance. The feedback time should be less than 10 minutes.

[0079] In the present invention, by collecting and analyzing historical data, the laws and characteristics of insulator pollution flashover and creepage can be deeply understood, so as to accurately reflect the actual situation of insulator pollution flashover and creepage. Determining a reasonable leakage current threshold can effectively avoid false alarms and missed alarms, and improve the accuracy of monitoring. Testing and adjusting the threshold can ensure the real-time and accuracy of the monitoring system, so as to timely discover and deal with problems. Through multiple adjustments and tests, the threshold setting can be gradually optimized, which can more accurately reflect the actual situation of insulator pollution flashover and creepage, and provide a scientific basis for subsequent monitoring and processing. In short, step S5 has a significant beneficial effect in the entire online monitoring method of pollution flashover and creepage based on photoelectric induction, which can improve the accuracy, real-time and scientific nature of monitoring, and provide a strong guarantee for the safe operation of the power system.

[0080] In the present invention, the front-end monitors that the creepage signal and the leakage current reach a threshold and then automatically adjusts the preset position to start shooting, thereby avoiding the energy consumption and bandwidth usage of the video being turned on continuously for 24 hours. This not only saves costs, but also improves the sustainability of the system. The multifunctional video monitoring device connects the leakage current device with the video online monitoring, realizes real-time monitoring of the insulator leakage current, and synchronously transmits the video information back. This real-time monitoring and response capability helps to timely discover potential pollution flashover and creepage problems, so that measures can be taken to avoid accidents. By connecting the video monitoring device with the leakage current detection device, the optical signal and electrical signal of pollution flashover and creepage can be monitored simultaneously, which improves the comprehensiveness and accuracy of monitoring. This comprehensive monitoring method helps to identify and handle problems more effectively. Through real-time monitoring and timely response, damage to insulators caused by pollution flashover and creepage can be effectively prevented, thereby ensuring the safe operation of the power system. This method helps to reduce the risk of failure of the power system caused by pollution flashover and creepage, and improve the reliability of power supply.

[0081] As another aspect of the present invention, the present invention also provides an online monitoring system for pollution flashover and creepage based on photoelectric induction, which at least comprises: a video monitoring device using photoelectric induction, a leakage current detection device electrically connected to the video monitoring device, and a monitoring center for remote communication with the video monitoring device and the leakage current detection device; the system executes the above-mentioned Figure 1 The embodiment described is a method for online monitoring of pollution flashover and creepage based on photoelectric induction. For more details, please refer to and combine with the above Figure 1 The description is not repeated here.

[0082] As another aspect of the present invention, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the following is implemented: Figure 1 The steps of a method for online monitoring of flashover and creepage based on photoelectric induction are described in detail. Figure 1 Description,

[0083] The implementation of the embodiments of the present invention has the following beneficial effects:

[0084] The present invention provides an online monitoring method, system and storage medium for pollution flashover and creepage based on photoelectric induction. By collecting and analyzing historical data, the laws and characteristics of pollution flashover and creepage of insulators can be deeply understood, so as to accurately reflect the actual situation of pollution flashover and creepage of insulators. Determining a reasonable leakage current threshold can effectively avoid false alarms and missed alarms, and improve the accuracy of monitoring. Testing and adjusting the threshold can ensure the real-time and accuracy of the monitoring system, so as to timely discover and deal with problems. Through multiple adjustments and tests, the threshold setting can be gradually optimized, which can more accurately reflect the actual situation of pollution flashover and creepage of insulators, and provide a scientific basis for subsequent monitoring and processing. The implementation of the present invention can improve the accuracy, real-time and scientific nature of monitoring, and provide a strong guarantee for the safe operation of the power system.

[0085] At the same time, in the present invention, after the front-end monitors that the creepage signal and the leakage current reach a threshold, the preset position is automatically adjusted to start shooting, thereby avoiding the energy consumption and bandwidth usage of the video being turned on continuously for 24 hours. This not only saves costs, but also improves the sustainability of the system. The multifunctional video monitoring device connects the leakage current device with the video online monitoring, realizes real-time monitoring of the insulator leakage current, and synchronously transmits video information back. This real-time monitoring and response capability helps to timely discover potential pollution flashover and creepage problems, so that measures can be taken to avoid accidents. By connecting the video monitoring device with the leakage current detection device, the optical signal and electrical signal of pollution flashover and creepage can be monitored simultaneously, which improves the comprehensiveness and accuracy of monitoring. This comprehensive monitoring method helps to identify and handle problems more effectively. Through real-time monitoring and timely response, damage to insulators caused by pollution flashover and creepage can be effectively prevented, thereby ensuring the safe operation of the power system. This method helps to reduce the risk of failure of the power system caused by pollution flashover and creepage, and improve the reliability of power supply.

[0086] In summary, the implementation of the present invention can improve the monitoring accuracy and positioning accuracy, thereby improving the safety of the power system.

[0087] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0088] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A method for online monitoring of pollution flashover and creepage based on photoelectric induction, characterized in that: At least the following steps are included: Step S1, installing a video monitoring device using photoelectric sensing in the insulator pollution flashover and creepage area, and configuring the parameters of the video monitoring device, including resolution and frame rate, according to the type of insulator and the use environment; Step S3, installing a leakage current detection device near the video monitoring device to monitor the magnitude of the insulator leakage current in real time; and connecting the video monitoring device to the leakage current detection device through a cable; Step S5, setting a threshold of leakage current according to actual conditions. When the leakage current exceeds the threshold, the video monitoring device automatically adjusts the preset position to start shooting the video of pollution flashover and creepage, and transmits the video back to the monitoring center; Step S7: The monitoring center analyzes the returned video and uses image recognition technology to identify the location and degree of pollution flashover and creepage; and processes the leakage current data to calculate the average value, maximum value, and minimum value parameters of the leakage current; Step S9, feeding back the location, degree and leakage current data of the pollution flashover and creepage to the relevant departments, and formulating corresponding treatment measures according to the analysis results.

2. The method according to claim 1, characterized in that In the step S1, it includes: The installation height of the device is determined to be the height of the insulator when the pollution flashover and creepage occur plus the first fixed value, so as to ensure that the complete pollution flashover and creepage process is captured; the coverage angle of the device is at least 180 degrees, so as to cover all directions in which the pollution flashover and creepage may occur; Determine the required resolution and frame rate parameters to meet different monitoring needs; According to the lighting conditions, adjust the white balance and exposure compensation parameters to ensure the clarity and smoothness of the video data.

3. The method according to claim 2, characterized in that The step S3 includes: Determine the installation location of the leakage current detection device so that the magnitude of the insulator leakage current can be monitored in real time; Choose to install it at a fixed distance below the video monitoring device; According to the magnitude of the leakage current, configure the range and sensitivity parameters of the detection device to ensure that the magnitude of the leakage current can be accurately measured; And choose the appropriate cable type and length to ensure the stability and reliability of signal transmission.

4. The method according to claim 3, characterized in that The step S5 specifically includes: Collect historical data on insulator flashover and creepage, including leakage current, video shooting time, and flashover and creepage degree information; Analyze the collected historical data to understand the laws and characteristics of insulator pollution flashover and creepage; by analyzing the historical data, derive the relationship between leakage current and pollution flashover and creepage; According to the analysis results, determine a reasonable leakage current threshold; this threshold should be able to accurately reflect the actual situation of insulator pollution flashover and creepage, while avoiding false alarms and missed alarms; Apply the determined threshold to actual monitoring and observe the response of the video monitoring device; if it is found that the threshold is set improperly, it is necessary to adjust the threshold in time to ensure the accuracy of monitoring; The threshold is adjusted according to the actual monitoring results and feedback. During the adjustment process, the correlation between the reference leakage current and the pollution flashover creepage current, as well as the monitoring effect under different thresholds are considered; Through multiple adjustments and tests, the threshold setting is gradually optimized; finally, a threshold that can accurately reflect the actual situation of insulator pollution flashover and creepage is determined and applied in actual monitoring; Where: The calculation formula for the leakage current threshold is: Threshold = α + β × average leakage current: Among them, α is the intercept term, which reflects the basic level of the leakage current threshold; β is the slope coefficient, which reflects the relationship between the leakage current and the threshold; the leakage current average is the average value of the historical leakage current data set; The correlation calculation formula between leakage current and pollution flashover creepage is: Correlation coefficient = product of covariance / standard deviation; Among them, the covariance is the covariance of the difference between the leakage current and the pollution flashover creepage level; the product of the standard deviation is the product of the standard deviation of the leakage current and the standard deviation of the pollution flashover creepage level.

5. The method according to claim 4, characterized in that The step S5 further comprises: According to the threshold setting of leakage current, configure the automatic shooting function of the video monitoring device; When the leakage current exceeds the threshold, the video monitoring device starts to automatically shoot; The captured video is transmitted back to the monitoring center via cables for video data storage and processing.

6. The method according to claim 5, characterized in that The step S7 comprises: Pre-process the returned video, including denoising and image enhancement, to improve image quality; Use image recognition technology, including edge detection and feature extraction, to analyze the video to identify the location and extent of flashover and creepage. Use edge detection technology to detect the edge position of pollution flashover and creepage, and then use feature extraction technology to further identify the degree of pollution flashover and creepage; Preprocess the returned leakage current data, including denoising and filtering, to improve the data quality; The data is processed using data processing software to calculate the average, maximum and minimum parameters of the leakage current.

7. The method according to claim 6, characterized in that In step S9, the analysis results are organized into a report or chart to visually display the status of pollution flashover and creepage and leakage current data; then, the report or chart is sent to the power company and maintenance department so that timely measures can be taken.

8. An online monitoring system for pollution flashover and creepage based on photoelectric induction, characterized in that: The system at least comprises a video monitoring device using photoelectric induction, a leakage current detection device electrically connected to the video monitoring device, and a monitoring center for remote communication with the video monitoring device and the leakage current detection device; wherein the system executes a method for online monitoring of pollution flashover and creepage based on photoelectric induction as described in any one of claims 1 to 7 during operation.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the online monitoring method for pollution flashover and creepage based on photoelectric induction as described in any one of claims 1 to 7 are implemented.

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