Method and device for determining ablation state of cable and electronic equipment

Abstract

The invention discloses a method and device for determining the ablation state of a cable and electronic equipment. Relates to the technical field of cable tunnels, and the method comprises the steps: determining the temperature description information of each temperature collection point according to a temperature value which is collected based on a reference collection period and is matched with each temperature collection point on a cable line; determining at least one target temperature acquisition point on the cable line according to the temperature description information; according to the position of each target temperature acquisition point, determining a plurality of target gas taking points having a position association relationship with each target temperature acquisition point; the ablation state of the cable line is determined according to the gas content description information matched with the multiple target gas taking points, and the gas content description information comprises the respective gas concentrations of the multiple gases. According to the invention, the technical problem that the ablation state of the cable is determined inaccurately in the prior art is solved.

Description

Technical Field

[0001] This application relates to the field of cable tunnel technology, and more specifically, to a method, apparatus, and electronic device for determining the ablation state of a cable. Background Technology

[0002] The buffer layer (also known as the shielding layer or sheath) primarily serves to provide mechanical protection, prevent moisture intrusion, and provide a uniform electric field. High-voltage cable breakdown accidents caused by the ablation of the water-blocking buffer layer frequently occur in cities. This is a structural defect in the cable, and many latent ablation defects remain undetected. Monitoring the condition of the water-blocking buffer layer of high-voltage cables and diagnosing ablation defects helps to detect cable defects early and take timely and effective measures to reduce the damage caused by defects, ensuring the safe operation of power cables.

[0003] However, current methods for detecting ablation defects in the water-blocking buffer layer of high-voltage cables mainly rely on partial discharge and X-ray inspection. Partial discharge detection is easily affected by ambient noise, and the partial discharge in the buffer layer is intermittent with an unpredictable cycle, making it difficult to generate a partial discharge signal matching the spectral characteristics. X-ray inspection primarily detects white spots in the buffer layer but cannot detect ablation, and its sensitivity is low. Its practical application is affected by the cable's operating environment, and there is no strategy for handling the cable after detection. Currently, no effective solution has been proposed to address the technical problem of inaccurate determination of cable ablation status in related technologies. Summary of the Invention

[0004] The main objective of this application is to provide a method, apparatus, and electronic device for determining the cable erosion state, so as to solve the technical problem of inaccurate determination of the cable erosion state in related technologies.

[0005] To achieve the above objectives, according to one aspect of this application, a method for determining the ablation state of a cable is provided. The method includes: determining temperature description information for each temperature acquisition point based on temperature values ​​matched to each temperature acquisition point on the cable line based on a reference acquisition period, wherein the temperature description information is used to indicate abnormal conditions in the temperature acquired by the temperature acquisition point; determining at least one target temperature acquisition point on the cable line based on the temperature description information; determining multiple target gas sampling points that have a positional association with each target temperature acquisition point based on the location of each target temperature acquisition point; and determining the ablation state of the cable line based on gas content description information matched to each of the multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

[0006] To achieve the above objectives, according to another aspect of this application, an apparatus for determining the ablation state of a cable is provided. The apparatus includes: a temperature monitoring module, which determines temperature description information for each temperature acquisition point based on temperature values ​​matched to each temperature acquisition point on the cable line based on a reference acquisition period, wherein the temperature description information is used to indicate abnormal conditions in the temperature acquired by the temperature acquisition point; a first determining module, which determines at least one target temperature acquisition point on the cable line based on the temperature description information; a second determining module, which determines multiple target gas sampling points that have a positional relationship with each target temperature acquisition point based on the location of each target temperature acquisition point; and a third determining module, which determines the ablation state of the cable line based on gas content description information matched to each of the multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

[0007] To achieve the above objectives, according to another aspect of this application, a computer-readable storage medium is provided, wherein a computer program is stored in the computer program, which is configured to execute the above-described method for determining the cable erosion state when it is run.

[0008] To achieve the above objectives, according to another aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the aforementioned method for determining the cable erosion state.

[0009] To achieve the above objectives, according to another aspect of this application, a processor is provided for running a program, wherein the program executes the method for determining the cable erosion state.

[0010] To achieve the above objectives, according to another aspect of this application, an electronic device is provided, including one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are run by the one or more processors, the one or more processors perform the method for determining the cable erosion state.

[0011] This application employs the following steps: Based on temperature values ​​matched to each temperature acquisition point on the cable line and collected according to a reference acquisition cycle, temperature description information is determined for each temperature acquisition point. This temperature description information indicates any abnormalities in the temperature collected by the acquisition point. Based on the temperature description information, at least one target temperature acquisition point on the cable line is determined to promptly detect thermal anomalies in the cable. Based on the location of each target temperature acquisition point, multiple target gas sampling points with locational relationships are determined. Based on the gas content description information matched to each of the multiple target gas sampling points, the ablation state of the cable line is determined. The gas content description information includes the concentrations of various gases, enabling the detection of anomalies based on infrared thermometry. Combined with gas detection verification, by analyzing characteristic gases generated inside the cable, the presence and severity of ablation defects inside the cable are further determined, thus solving the technical problem of inaccurate determination of the ablation state of cable lines in related technologies. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a flowchart of a method for determining the ablation state of a cable according to an embodiment of this application;

[0014] Figure 2 This is a flowchart of another method for determining the cable ablation state according to an embodiment of this application;

[0015] Figure 3 This is a schematic diagram of an optional device for determining the cable ablation state according to an embodiment of this application;

[0016] Figure 4 This is a schematic diagram of an optional electronic device provided according to an embodiment of this application. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] The method, apparatus, and electronic equipment for determining the cable erosion state described in this application can be used in the field of cable tunnel technology, and the application fields of the method, apparatus, and electronic equipment for determining the cable erosion state described in this application are not limited.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] It should be noted that all information and data disclosed herein are authorized by the user or fully authorized by all parties. The acquisition, storage, and processing of data involved in this application comply with relevant regulations. The collected information is authorized by the user or fully authorized by all parties. Furthermore, the collection, storage, use, processing, transmission, provision, disclosure, and application of related data all comply with relevant laws, regulations, and standards of the relevant regions, necessary confidentiality measures have been taken, and there is no violation of public order and good morals. Corresponding access points are provided for users to choose to authorize or refuse authorization.

[0022] The present invention will now be described in conjunction with preferred implementation steps. Figure 1 This is a flowchart of a method for determining the cable ablation state according to an embodiment of this application, such as... Figure 1 As shown, the method includes the following steps:

[0023] S102, Based on the temperature values ​​matched with each temperature acquisition point on the cable line acquired based on the reference acquisition period, determine the temperature description information of each temperature acquisition point, wherein the temperature description information is used to indicate abnormal conditions of the temperature acquired by the temperature acquisition point.

[0024] S104, Determine at least one target temperature acquisition point on the cable line based on the temperature description information;

[0025] S106, Based on the location of each target temperature acquisition point, determine multiple target gas sampling points that have a locational relationship with each target temperature acquisition point;

[0026] S108, determine the ablation state of the cable line based on the gas content description information matched with multiple target gas sampling points respectively, wherein the gas content description information includes the gas concentration of each of the various gases.

[0027] In step S102 above, temperature description information for each temperature acquisition point is determined based on the temperature value matched with each temperature acquisition point on the cable line, which is acquired based on the reference acquisition period. The temperature description information is used to indicate abnormal conditions of the temperature acquired by the temperature acquisition point.

[0028] As an optional implementation, an infrared temperature measurement device can be used to collect temperature data at each temperature collection point on the cable line according to a preset reference collection cycle (e.g., once per hour). The temperature description information can be determined by comparing the real-time temperature value of each temperature collection point with the temperature value within the reference cycle, calculating the temperature change, and if the change exceeds a preset threshold (e.g., 1.0℃), it is judged as abnormal and temperature description information is generated to describe the abnormal temperature condition, such as the location of the abnormal point, the magnitude of the temperature change, and the duration.

[0029] In step S104 above, at least one target temperature acquisition point on the cable line is determined based on the temperature description information. As an optional implementation, based on the temperature description information in step S102, all acquisition points with abnormal temperatures are identified, and all acquisition points with abnormal temperatures are designated as target temperature acquisition points for subsequent gas detection.

[0030] In step S106 above, multiple target gas sampling points that have a positional relationship with each target temperature sampling point are determined based on the location of each target temperature sampling point. Optionally, the aforementioned positional relationship refers to the spatial relationship between the target temperature sampling point and the gas sampling point, such as the gas sampling point being located within a certain distance range of the target temperature sampling point; the aforementioned target gas sampling point is a specific point selected for gas detection based on the location of the target temperature sampling point.

[0031] As an optional implementation method, for example, for each target temperature acquisition point, one gas sampling point is set at a distance of 50 meters and 100 meters on both sides of it, and a gas sampling point is also set at the target temperature acquisition point itself, forming a set of multiple target gas sampling points.

[0032] In step S108 above, the ablation state of the cable line is determined based on the gas content description information matched with multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases. Optionally, the gas content description information may be the concentration information of various gases obtained by analyzing gas samples collected from the target gas sampling points using a gas detector; the ablation state is the degree of internal ablation of the cable determined based on the gas content description information and a specific ablation grading standard.

[0033] As an optional implementation method, gas samples are collected at each target gas sampling point, and the concentrations of various gases, including ethylene and hydrogen, are analyzed. Based on the characteristic gas concentrations in the gas content description information, and in accordance with the preset ablation grading standards, the ablation level corresponding to each gas sampling point is determined. Then, the overall ablation status of the cable line is comprehensively evaluated based on the highest level among these levels.

[0034] Steps S102-S108 described above will be explained using a complete implementation method:

[0035] This application covers all 110kV, 220kV, and 500kV cable lines, with a focus on high-risk lines with a history of ablation or from the same batch. First, the entire cable body is scanned using infrared thermography at a preset cycle (1 year / 3 months), and the temperature data at each monitoring point is recorded. The temperature difference between different points on the same line is calculated and compared with a threshold (1.0℃) to determine whether there is an anomaly. For abnormal lines, the subsequent process is initiated according to the voltage level (e.g., when the temperature difference is >1.0℃ on 110kV, a power outage and gas sampling are triggered).

[0036] Gas detection verification includes gas sampling operations: the gas sampling section is determined to be between the two intermediate joints of the phase where the heat source is located; one gas sampling point is set at the heat source, and one gas sampling point is set at 50 meters and 100 meters on both sides (a total of 5); if the heat source is close to the joint (e.g., less than 50 meters away from the joint), 5 gas sampling points are added on the other side at 100-meter intervals; when there are multiple heat sources, if the distance is ≤5 meters, they are merged into one monitoring point; non-heat source gas sampling points are merged if the distance is ≤50 meters, to ensure that the gas sampling points are distributed reasonably.

[0037] Further gas detectors were used to measure the ethylene and hydrogen content at each gas sampling point, and the ablation level of each point was determined by comparing it with the grading standard. The highest level was used as the basis for the overall treatment of the line.

[0038] For example, the tiered response is implemented as follows: if there is a gas intake point with a "critical state" level, the entire situation is determined to be critical: immediately arrange for a power outage, replace the corresponding section of cable, and prevent the fault from escalating;

[0039] In cases where a gas sampling point is classified as "Severe," the overall situation is determined to be severe: For "Severe" points, the cable outer sheath is stripped and windows are opened to inspect for ablation, and a special repair fluid is injected for treatment, extending the repair area to 50 meters on both sides of the gas sampling point; For "Moderate" points, online gas monitoring devices are installed to collect characteristic gas concentrations in real time and transmit them to the operation and maintenance system, automatically triggering an alarm when the concentration exceeds the limit; For "General" points, infrared online monitoring equipment is installed to continuously monitor temperature changes, with data updated every 15 minutes; For "Minor" points, the infrared temperature measurement cycle is shortened to once every half month, and the frequency of manual inspections is increased;

[0040] Medium / General / Minor Levels: Implement the corresponding measures as described above, focusing on dynamic tracking through monitoring equipment or increased inspections until the defect is eliminated or escalated.

[0041] This application employs the following steps: Based on temperature values ​​matched to each temperature acquisition point on the cable line and collected according to a reference acquisition cycle, temperature description information is determined for each temperature acquisition point. This temperature description information indicates any abnormalities in the temperature collected by the acquisition point. Based on the temperature description information, at least one target temperature acquisition point on the cable line is determined to promptly detect thermal anomalies in the cable. Based on the location of each target temperature acquisition point, multiple target gas sampling points with locational relationships are determined. Based on the gas content description information matched to each of the multiple target gas sampling points, the ablation state of the cable line is determined. The gas content description information includes the concentrations of various gases, enabling the detection of anomalies based on infrared thermometry. Combined with gas detection verification, by analyzing characteristic gases generated inside the cable, the presence and severity of ablation defects inside the cable are further determined, thus solving the technical problem of inaccurate determination of the ablation state of cable lines in related technologies.

[0042] As an alternative approach, temperature description information for each temperature acquisition point is determined based on temperature values ​​matched to each temperature acquisition point on the cable line, acquired according to a reference acquisition period, including at least one of the following:

[0043] Method 1: Determine the temperature difference between any two temperature acquisition points on the cable line to obtain a set of temperature difference values ​​that match each temperature acquisition point, as indicated by the temperature description information.

[0044] Method 2: Determine the temperature difference between each temperature acquisition point on the cable line and the reference temperature value to obtain a set of temperature difference values ​​that match each temperature acquisition point, as indicated by the temperature description information. The reference temperature value is determined based on the historical temperature values ​​at historical times.

[0045] As an optional implementation method, in the first method described above, the temperature difference between any two temperature acquisition points on the cable line is determined to obtain a set of temperature difference values ​​matching each temperature acquisition point, as indicated by the temperature description information. For example, multiple temperature acquisition points are pre-set on the cable line, such as one point every 50 meters; using an infrared thermometer or temperature sensor, the temperature value of each temperature acquisition point is collected within a reference acquisition period (such as 10:00 AM every day); the temperature difference between any two temperature acquisition points is calculated to obtain a set of temperature difference values ​​matching each target temperature acquisition point, indicating the relative temperature change at each point in the cable line, which can be used to preliminarily determine whether there is a temperature anomaly.

[0046] As an optional implementation, in the second method described above, the temperature difference between each temperature acquisition point on the cable line and a reference temperature value is determined to obtain a set of temperature difference values ​​matching each temperature acquisition point, as indicated by the temperature description information. The reference temperature value is determined based on historical temperature values ​​at historical times. Optionally, the reference temperature value can be a temperature benchmark value calculated based on historical temperature data, used for comparison, such as the average temperature, minimum temperature, or typical temperature under specific conditions (e.g., peak load) at historical times.

[0047] For example, obtain historical temperature values ​​of cables under the same operating conditions over a period of time (such as the most recent year); based on this historical temperature data, calculate a representative reference temperature value, such as the average of all historical temperatures. Within the reference acquisition period, perform real-time temperature measurements at each temperature acquisition point and record these temperature values; compare the real-time temperature value of each temperature acquisition point with the reference temperature value, calculate the difference, and obtain a set of temperature difference values ​​matching each target temperature acquisition point.

[0048] The method for determining the cable ablation state provided in this application calculates the temperature difference between any two temperature acquisition points on the cable line to form a series of temperature difference values, captures the temperature differences between different locations on the cable, and locates abnormal heating points. It can also compare the real-time temperature of each temperature acquisition point with the reference temperature to quantify the deviation between the current cable operating state and the normal state, thereby more accurately judging whether the cable is abnormal and the degree of abnormality, improving the accuracy of locating abnormal heating points, and thus improving the accuracy of determining the gas sampling point.

[0049] As an alternative approach, determining at least one target temperature acquisition point on the cable line based on temperature description information further includes at least one of the following:

[0050] Method 1: If there is a target temperature difference greater than the first temperature difference threshold in the set of temperature difference values ​​matched with the temperature acquisition point, then the temperature acquisition point is determined as the target temperature acquisition point.

[0051] Method 2: Determine the number of reference temperature differences greater than the second temperature difference threshold in the set of temperature difference values ​​matched with each temperature acquisition point. If the number of reference temperature differences is greater than the third threshold, determine the temperature acquisition point corresponding to the reference temperature difference as the target temperature acquisition point.

[0052] In Method 1 above, if a target temperature difference greater than a first temperature difference threshold exists in the set of temperature difference values ​​matched with the temperature acquisition points, the temperature acquisition point is determined as the target temperature acquisition point. For example, by analyzing the set of temperature difference values ​​for each temperature acquisition point, it can be identified whether there is a temperature difference greater than the first temperature difference threshold (e.g., 1.0℃). Temperature acquisition points with temperature differences greater than the first temperature difference threshold are marked as "target temperature acquisition points," meaning that the temperature at these points is abnormally high, which may indicate an internal fault or abnormality in the cable.

[0053] In the above method two, the reference number of reference temperature differences greater than the second temperature difference threshold is determined in the set of temperature difference values ​​matched with each temperature acquisition point. If the reference number is greater than the third number threshold, the temperature acquisition point corresponding to the reference temperature difference is determined as the target temperature acquisition point. The above third number threshold can be determined according to the total number of temperature acquisition points on the cable line, for example, 1 / 3 of the total number of selected temperature acquisition points.

[0054] For example, all temperature differences greater than a second temperature difference threshold (e.g., 1.0℃) are filtered from the set of temperature differences. The number of temperature differences greater than the second temperature difference threshold is determined, i.e., the reference number. If the reference number exceeds a third number threshold, the temperature acquisition point is determined as the "target temperature acquisition point". That is, if the temperature difference between a temperature acquisition point and five other temperature acquisition points (assuming the third number threshold is 3) all exceed 1.0℃, the universality and persistence of temperature anomalies are taken into account, which helps to eliminate interference from occasional or local factors and improves the accuracy of identifying abnormal heat points.

[0055] As an optional approach, before determining at least one target temperature acquisition point on the cable line based on temperature description information, the method further includes:

[0056] S1, if the temperature difference in the set of temperature difference values ​​matched with the temperature acquisition point is less than or equal to the first temperature difference threshold, determine the target acquisition period matched with the temperature acquisition point.

[0057] S2 collects the temperature values ​​of the temperature collection points according to the target collection cycle.

[0058] In steps S1-S2 above, if the temperature difference in the set of temperature difference values ​​matched with the temperature acquisition point is less than or equal to the first temperature difference threshold, the target acquisition period matched with the temperature acquisition point is determined; and the temperature value of the temperature acquisition point is acquired according to the target acquisition period.

[0059] As an optional implementation, after each acquisition cycle (assuming the original acquisition cycle for 110kV and 220kV cable lines is once a year for full-line infrared temperature measurement; for 500kV cable lines, 110kV and 220kV lines with a history of buffer layer erosion, and 110kV and 220kV lines with known erosion of the same batch of cables, full-line infrared temperature measurement is conducted once every three months), the system will analyze the set of temperature difference values ​​from all temperature acquisition points. If the temperature difference value of a certain temperature acquisition point is less than or equal to the first temperature difference threshold (e.g., 1.0℃), the acquisition cycle needs to be adjusted. For example, for 110kV and 220kV lines, when the temperature difference is ≤1.0℃, the temperature measurement cycle is shortened: once a month for 220kV lines and once every two months for 110kV lines. Based on the current temperature changes, the target acquisition cycle is determined, and the system will re-acquire temperature data according to this cycle until the end of the next acquisition cycle, at which point the temperature difference value comparison analysis will be performed again.

[0060] The method for determining the cable erosion state provided in this application embodiment can detect cable temperature changes more frequently by shortening the temperature measurement cycle, especially when the temperature difference threshold (1.0℃) is below. This helps to capture the initial temperature anomalies in time and thus identify the erosion state of the line in a timely manner.

[0061] As an optional approach, based on the location of each target temperature acquisition point, multiple target gas sampling points with locational relationships to each target temperature acquisition point are determined, including:

[0062] S1, determine the location of the target temperature acquisition point as the center point of the interval;

[0063] S2, based on the first distance length and the second distance length, determine the target gas collection points on both sides of the center point of the interval, wherein the second distance length is an integer multiple of the first distance length.

[0064] In step S1 above, the location of the target temperature acquisition point is determined as the center point of the interval. As an optional implementation, on a cable line, once a temperature acquisition point is marked as abnormal (i.e., a target temperature acquisition point), this point becomes the center of an area of ​​interest. For example, if temperature acquisition point number 24 on a 110kV cable line is marked, then its location is considered the center point of "interval number 24".

[0065] In step S2 above, target gas sampling points on both sides of the center point of the interval are determined based on the first distance length and the second distance length, wherein the second distance length is an integer multiple of the first distance length. The system determines the positions of the gas sampling points on both sides of the target temperature sampling point according to the preset first and second distance lengths. Assuming the first distance length is 50 meters and the second distance length is 100 meters (i.e., twice the first distance length), the gas sampling points at 50 meters on both sides are set at 50 meters on each side of the target temperature sampling point. The gas sampling points at 100 meters on both sides: for example, since the second distance length is an integer multiple of the first distance length, another gas sampling point is set at 100 meters on each side of the target temperature sampling point to expand the detection range.

[0066] As an optional implementation, suppose that on a high-voltage cable line, infrared thermography detects a heat source at temperature sampling point number 15, approximately 30 meters from the nearest joint. A gas sampling point is set up at the precise location of the heat source, i.e., temperature sampling point number 15, to directly detect the gas conditions at that point. Starting from the heat source, gas sampling points are set up at 50 meters and 100 meters to either side. For example, gas sampling points numbered 16 and 17 are set to the left of point 15 (i.e., in the opposite direction of the cable direction), located at 50 meters and 100 meters from the heat source, respectively; and gas sampling points numbered 18 and 19 are set to the right of point 15 (i.e., in the same direction as the cable direction), also located at 50 meters and 100 meters from the heat source. Thus, including the gas sampling point number 15 at the heat source, a total of five gas sampling points are set up.

[0067] It should be noted that, assuming the nearest connector on the left is less than 50 meters from the heating point, perhaps only 20 meters, it means that it's impossible to set up gas sampling point #16 on the left at 50-meter intervals. In this case, the gas sampling point setup on the left will only include gas sampling point #17, which is 100 meters away from the heating point, while gas sampling points #18 and #19 will be set up normally on the right. To ensure a total of 5 gas sampling points, the gas sampling point setup on the right will be adjusted. After gas sampling point #19 to the right of the heating point, another gas sampling point will be added at 100-meter intervals, let's say #20. Thus, there will be 3 gas sampling points on the right (#18, #19, and the newly added #20), 1 on the left (#17), plus gas sampling point #15 at the heating point, for a total of 5 gas sampling points.

[0068] By determining the location of the target temperature acquisition point as the center point of the interval, and based on the first and second distance lengths, the target gas sampling points on both sides of the center point of the interval are determined. Gas detection is performed directly on the core of the temperature anomaly area, and the gas composition at different depths and ranges is detected, thereby more comprehensively and accurately assessing the ablation state.

[0069] As an alternative approach, the ablation state of the cable line is determined based on gas content description information matched with multiple target gas sampling points, including:

[0070] S1, if there is gas content description information matching the target gas sampling point indicating that the ethylene concentration is less than or equal to the first concentration threshold and the hydrogen concentration is greater than or equal to the second concentration threshold, determine that the ablation state matching the target gas sampling point is a slight ablation state.

[0071] S2, if there is gas content description information matching the target gas sampling point indicating that the ethylene concentration is greater than the first concentration threshold and the ethylene concentration is less than or equal to the third concentration threshold, the ablation state matching the target gas sampling point is determined to be a general ablation state.

[0072] S3, if there is gas content description information matching the target gas sampling point indicating that the ethylene concentration is greater than the third concentration threshold and the ethylene concentration is less than or equal to the fourth concentration threshold, determine that the ablation state matching the target gas sampling point is a moderate ablation state.

[0073] S4. If there is gas content description information matching the target gas sampling point indicating that the ethylene concentration is greater than the fourth concentration threshold and the ethylene concentration is less than or equal to the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a severe ablation state.

[0074] S5, if there is gas content description information matching the target gas intake point indicating that the ethylene concentration is greater than the fifth concentration threshold, determine the ablation state matching the target gas intake point as a critical ablation state.

[0075] The above steps S1-S5 will be described using an optional implementation method:

[0076] In step S1 above, the slight ablation state is determined based on the gas content: in the gas content description information matching the target gas intake point, if the ethylene concentration is less than or equal to the first concentration threshold (e.g., 100 ppm) and the hydrogen concentration is greater than or equal to the second concentration threshold (e.g., 5000 ppm), the system determines that the cable area corresponding to the gas intake point is in a slight ablation state.

[0077] In step S2 above, the general ablation state is determined based on the gas content: if the ethylene concentration indicated by the gas content description information is greater than the first concentration threshold but does not exceed the third concentration threshold (e.g., 500 ppm), the cable area corresponding to the gas sampling point is assessed as being in a general ablation state, indicating that the ablation degree has worsened but is still within a controllable range.

[0078] In step S3 above, the moderate ablation state is determined based on the gas content: when the ethylene concentration exceeds the third concentration threshold but is less than or equal to the fourth concentration threshold (e.g., 2000 ppm), the system will mark the area as a moderate ablation state, indicating that the ablation inside the cable is deteriorating and requires closer monitoring.

[0079] In step S4 above, the severe ablation state is determined based on the gas content: if the ethylene concentration is higher than the fourth concentration threshold but does not exceed the fifth concentration threshold (e.g., 5000 ppm), the cable area corresponding to the gas sampling point is determined to be in a severe ablation state, and measures must be taken immediately to prevent the fault from spreading.

[0080] In step S5 above, the critical ablation state is determined based on the gas content: once the gas content description information indicates that the ethylene concentration exceeds the fifth concentration threshold, regardless of the hydrogen concentration, the system will determine that the cable area is in a critical ablation state. At this time, the power should be cut off immediately and the relevant cable should be replaced to avoid potential system failure.

[0081] The method for determining the cable ablation state provided in this application embodiment uses infrared thermometry to locate temperature anomalies and combines it with gas detection to further accurately identify different types of ablation defects, such as slight, general, moderate, severe, and critical ablation states.

[0082] As an alternative approach, after determining the ablation state of the cable line based on gas content description information matched with multiple target gas sampling points, the process includes:

[0083] S1, determine the target ablation state from the ablation states matched with multiple target gas intake points respectively;

[0084] S2, when the target ablation state is critical ablation state, determine the cable replacement strategy.

[0085] In step S1 above, a target ablation state is determined from the ablation states that match multiple gas intake points. The target ablation state is, for example, the highest level of ablation state determined from the ablation states that match multiple target gas intake points.

[0086] In step S2 above, if the target ablation state is critical ablation, the cable replacement strategy is determined, for example, regardless of the ablation state of other target gas intake points, a strategy of directly shutting down the power and replacing the cable is adopted; if the highest level of ablation state among multiple target gas intake points is not "critical ablation", then a corresponding strategy is adopted for each ablation state. For example, for the target gas intake point corresponding to "severe ablation": the outer sheath of the cable is stripped to open the window to check the ablation, a special repair fluid is used for injection treatment, the repair range is extended to 50 meters on both sides of the gas intake point, and the line is included in the project reserve list for the next technical transformation cycle; for the target gas intake point corresponding to "moderate ablation": an online gas monitoring device is installed to collect the characteristic gas concentration in real time and transmit it to the operation and maintenance system, and an automatic alarm is triggered when the concentration exceeds the limit; for the target gas intake point corresponding to "general ablation": an infrared online monitoring device is installed to continuously monitor temperature changes, and the data is updated every 15 minutes; for the target gas intake point corresponding to "slight ablation": the infrared temperature measurement cycle is shortened to once every half month, and the frequency of manual inspection is increased.

[0087] Through the above-described embodiments, differentiated maintenance and repair measures are adopted according to the different severity of cable erosion. The "critical" level of cable erosion triggers the decision to directly replace the line, while other levels are assessed step by step and differentiated treatment measures are adopted. This avoids excessive "one-size-fits-all" maintenance and ensures timely handling of high-risk conditions.

[0088] The following describes this solution using a complete embodiment, such as... Figure 2 As shown:

[0089] S202, Infrared temperature monitoring, periodically performs infrared temperature measurement on cable lines, identifies abnormal temperature points and initiates corresponding handling procedures;

[0090] Further, including S204, the temperature measurement cycle is determined; specifically, 110kV and 220kV cable lines shall be subjected to full-line infrared temperature measurement once a year, and 500kV cable lines / 110kV and 220kV lines with a history of buffer layer erosion / 110kV and 220kV lines of the same batch of eroded cables have been identified, shall be subjected to full-line infrared temperature measurement once every 3 months.

[0091] S206, calculate the temperature difference and determine temperature anomalies.

[0092] S206-1 When the temperature difference between 110kV and 220kV conventional lines is ≤1.0°C, the temperature measurement cycle should be shortened, for example, once a month for 220kV lines and once every two months for 110kV lines.

[0093] S208 is used for gas detection verification when the temperature difference of a 110KV / 220KV conventional line is greater than 1.0°C, or when a 500KV line is abnormal.

[0094] Gas detection is conducted on anomalies detected by infrared thermography to determine the level of ablation defects. For example, the gas detection grading standard is based on the content of ethylene and hydrogen, and the degree of ablation is divided into five levels: slight (ethylene ≤ 100 ppm and hydrogen ≥ 5000 ppm), moderate (100 ppm < ethylene ≤ 500 ppm), severe (500 ppm < ethylene ≤ 2000 ppm), critical (2000 ppm < ethylene ≤ 5000 ppm), and critical (ethylene > 5000 ppm).

[0095] S210, Determine the gas sampling range, the section between the two intermediate joints of the phase where the heating point is located; that is, only gas sampling is carried out on the phase of the line where the heating point is located, and the range is the cable section between the two intermediate joints;

[0096] S212, Set up gas sampling points; a single heating point (including the heating point and two sides, a total of 5); multiple heating points with a distance ≤ 5m are combined. Determine the number of gas sampling points, for example, take gas at each heating point, and take gas at intervals of 50 meters and 100 meters on both sides of the heating point (a total of 5 gas sampling points). If the heating point is close to the connector, making it impossible to take gas at one end, adjust to the other side with an interval of 100 meters (still 5).

[0097] When there are multiple hot spots, they are merged if the distance between two hot spots is ≤5 meters. When multiple abnormal temperature points (i.e. hot spots) are identified on the cable, and the straight-line distance between two adjacent hot spots is less than or equal to 5 meters, these hot spots are considered to be caused by the same reason, or their fault areas have been connected to form a larger continuous fault area.

[0098] If the distance between two non-thermal gas sampling points is ≤50 meters, they are merged to determine the final total number of sampling points. If the distance between two non-thermal gas sampling points is less than or equal to 50 meters, it means that the two points are very close, and the gas samples collected from them are likely to be highly similar. Repeated sampling does not add much additional information. To optimize the detection process and avoid wasting resources, the two non-thermal gas sampling points can be merged, and gas sampling can be performed at only one of the points.

[0099] S214, graded treatment implementation, implement differentiated operation and maintenance measures according to the ablation level corresponding to the gas detection results.

[0100] Specifically, this includes S214-1, with the highest level being "critical": immediately shut off power and replace the cable.

[0101] S214-2, the highest level is "Severe": Severe points are equipped with online gas monitoring, moderate points are equipped with online gas monitoring, general points are equipped with online infrared monitoring, and the infrared temperature measurement cycle for minor points is adjusted to once every half month.

[0102] S214-3, the highest level is "medium": install online gas monitoring at moderate points, install online infrared monitoring at general points, and adjust the infrared temperature measurement cycle to once every half month at minor points.

[0103] S214-4, the highest level is "general": general points are equipped with infrared online monitoring, and the infrared temperature measurement cycle for minor points is adjusted to once every half month.

[0104] S214-5, the highest level is "slight": the infrared temperature measurement cycle for slight cases is adjusted to once every half month.

[0105] This application employs a combined monitoring strategy of "infrared thermometry + gas detection." Infrared thermometry quickly locates potential defects, while gas detection accurately determines the degree of ablation. This overcomes the limitations of single infrared thermometry in quantifying defect levels and single gas detection in terms of high cost and slow response, achieving a closed loop of "rapid screening - accurate verification" for defect identification. Differentiated temperature measurement cycles (e.g., shortening to once every 3 months for high-risk lines) increase the monitoring density of weak points while avoiding resource waste caused by indiscriminate high-frequency monitoring, balancing monitoring accuracy and maintenance costs. A graded handling mechanism based on ablation levels establishes tiered measures (from immediate replacement to adding monitoring equipment) for different levels such as "critical," "severe," and "moderate," achieving "on-demand handling" that ensures power grid safety while avoiding excessive maintenance. Rules for setting gas sampling points (e.g., 50-meter and 100-meter intervals and merging principles) ensure the representativeness and accuracy of gas detection, providing reliable data support for defect level determination and enhancing the scientific nature of the handling strategy.

[0106] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0107] This application also provides an apparatus for determining the cable erosion state. It should be noted that the apparatus for determining the cable erosion state in this application can be used to execute the method for determining the cable erosion state provided in this application. The apparatus for determining the cable erosion state provided in this application is described below.

[0108] Figure 3 This is a schematic diagram of an apparatus for determining the cable erosion state according to an embodiment of this application. Figure 3 As shown, the device includes:

[0109] The temperature monitoring module 302 determines the temperature description information of each temperature acquisition point based on the temperature value matched with each temperature acquisition point on the cable line, which is collected based on the reference acquisition period. The temperature description information is used to indicate abnormal conditions of the temperature collected by the temperature acquisition point.

[0110] The first determining module 304 determines at least one target temperature acquisition point on the cable line based on the temperature description information;

[0111] The second determining module 306 determines multiple target gas sampling points that have a positional relationship with each target temperature sampling point based on the location of each target temperature sampling point.

[0112] The third determining module 308 determines the ablation state of the cable line based on the gas content description information matched with multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

[0113] Optionally, the temperature monitoring module 302 includes a fourth determining submodule, used to determine the temperature difference between any two temperature acquisition points on the cable line, and obtain a set of temperature difference values ​​matching each temperature acquisition point indicated by the temperature description information; and to determine the temperature difference between each temperature acquisition point on the cable line and a reference temperature value, and obtain a set of temperature difference values ​​matching each temperature acquisition point indicated by the temperature description information, wherein the reference temperature value is determined based on the historical temperature value at a historical time.

[0114] Optionally, the first determining module 304 includes a fifth determining submodule, used to determine a temperature acquisition point as a target temperature acquisition point when there is a target temperature difference greater than a first temperature difference threshold in the set of temperature difference values ​​matched with the temperature acquisition point; determine the reference number of reference temperature difference values ​​greater than a second temperature difference threshold in the set of temperature difference values ​​matched with each temperature acquisition point respectively; and determine the temperature acquisition point corresponding to the reference temperature difference value as the target temperature acquisition point when the reference number is greater than a third number threshold.

[0115] Optionally, the first determining module 304 is further configured to determine the target acquisition period matching the temperature acquisition point when the temperature difference in the set of temperature difference values ​​matching the temperature acquisition point is less than or equal to the first temperature difference threshold; and acquire the temperature value of the temperature acquisition point according to the target acquisition period.

[0116] Optionally, the second determining module 306 includes a sixth determining submodule, used to determine the location of the target temperature acquisition point as the center point of the interval; and to determine the target gas sampling points on both sides of the center point of the interval based on the first distance length and the second distance length, wherein the second distance length is an integer multiple of the first distance length.

[0117] Optionally, the third determining module 308 includes: a state determining module, configured to: determine the ablation state matching the target gas sampling point as a slight ablation state when gas content description information matching the target gas sampling point indicates that the ethylene concentration is less than or equal to a first concentration threshold and the hydrogen concentration is greater than or equal to a second concentration threshold; determine the ablation state matching the target gas sampling point as a general ablation state when gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the first concentration threshold and the ethylene concentration is less than or equal to a third concentration threshold; and determine the ablation state matching the target gas sampling point as a moderate ablation state when gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the first concentration threshold and the hydrogen concentration is less than or equal to a third concentration threshold. If the description information indicates that the ethylene concentration is greater than the third concentration threshold and less than or equal to the fourth concentration threshold, the ablation state matching the target gas sampling point is determined to be a moderate ablation state; if the description information indicates that the ethylene concentration is greater than the fourth concentration threshold and less than or equal to the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a severe ablation state; if the description information indicates that the ethylene concentration is greater than the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a critical ablation state.

[0118] Optionally, the aforementioned state determination module further includes: a strategy determination module, used to determine the target ablation state from the ablation states matched with multiple target gas intake points respectively; and to determine a cable replacement strategy when the target ablation state is a critical ablation state.

[0119] Optionally, in this embodiment, the implementation of each of the above-mentioned unit modules can be referred to the above-mentioned method embodiments, which will not be repeated here.

[0120] The device for determining the cable erosion state provided in this application includes a temperature monitoring module that determines temperature description information for each temperature acquisition point based on temperature values ​​matched with each temperature acquisition point on the cable line, collected based on a reference acquisition period. The temperature description information is used to indicate abnormal temperature conditions at the acquisition points. A first determining module determines at least one target temperature acquisition point on the cable line based on the temperature description information. A second determining module determines multiple target gas sampling points that are positionally associated with each target temperature acquisition point, based on the location of each target temperature acquisition point. A third determining module determines the cable erosion state based on gas content description information matched with each of the multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

[0121] The aforementioned device for determining the cable erosion state includes a processor and a memory. The temperature monitoring module, the first determining module, the second determining module, and the third determining module are all stored as program units in the memory. The processor executes the aforementioned program units stored in the memory to achieve the corresponding functions.

[0122] A processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be configured, and adjusting kernel parameters can improve the efficiency of modifying and refining programs.

[0123] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0124] This invention provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements a method for determining the state of cable erosion.

[0125] This invention provides a processor for running a program, wherein the program executes a method for determining the state of cable erosion.

[0126] This application also provides an electronic device for implementing the above-described method for determining the cable erosion state. This electronic device may be as follows: Figure 4 The terminal device or server shown is illustrated in this embodiment. This example uses this electronic device for illustration. Figure 4As shown, the electronic device includes a memory 402 and a processor 404. The memory 402 stores a computer program, and the memory 402 may include, but is not limited to, the temperature monitoring module 302, the first determining module 304, the second determining module 306, and the third determining module 308 from the device for determining the cable erosion state described above. The processor 404 is configured to execute the method for determining the cable erosion state via the computer program. When the processor 404 executes the program, it performs the following steps:

[0127] Based on the temperature values ​​matched with each temperature acquisition point on the cable line based on the reference acquisition period, temperature description information for each temperature acquisition point is determined, wherein the temperature description information is used to indicate abnormal conditions of the temperature acquired by the temperature acquisition point; at least one target temperature acquisition point on the cable line is determined based on the temperature description information; multiple target gas sampling points with positional relationships to each target temperature acquisition point are determined based on the location of each target temperature acquisition point; the ablation state of the cable line is determined based on the gas content description information matched with the multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

[0128] The temperature difference between any two temperature acquisition points on the cable line is determined to obtain a set of temperature difference values ​​matching each temperature acquisition point as indicated by the temperature description information; the temperature difference between each temperature acquisition point on the cable line and the reference temperature value is determined to obtain a set of temperature difference values ​​matching each temperature acquisition point as indicated by the temperature description information, wherein the reference temperature value is determined based on the historical temperature value at a historical time.

[0129] If there is a target temperature difference greater than the first temperature difference threshold in the set of temperature difference values ​​matched with the temperature acquisition point, the temperature acquisition point is determined as the target temperature acquisition point; the reference number of reference temperature differences greater than the second temperature difference threshold in the set of temperature difference values ​​matched with each temperature acquisition point is determined, and if the reference number is greater than the third number threshold, the temperature acquisition point corresponding to the reference temperature difference is determined as the target temperature acquisition point.

[0130] If the temperature difference in the set of temperature difference values ​​matched with the temperature acquisition point is less than or equal to the first temperature difference threshold, determine the target acquisition period matched with the temperature acquisition point; and acquire the temperature value of the temperature acquisition point according to the target acquisition period.

[0131] The location of the target temperature acquisition point is determined as the center point of the interval; based on the first distance length and the second distance length, the target gas sampling points on both sides of the center point of the interval are determined, wherein the second distance length is an integer multiple of the first distance length.

[0132] If the gas content description information matching the target gas sampling point indicates that the ethylene concentration is less than or equal to the first concentration threshold and the hydrogen concentration is greater than or equal to the second concentration threshold, the ablation state matching the target gas sampling point is determined to be a slight ablation state; if the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the first concentration threshold and the ethylene concentration is less than or equal to the third concentration threshold, the ablation state matching the target gas sampling point is determined to be a moderate ablation state; if the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the third concentration threshold and the ethylene concentration is less than or equal to the fourth concentration threshold, the ablation state matching the target gas sampling point is determined to be a moderate ablation state; if the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the fourth concentration threshold and the ethylene concentration is less than or equal to the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a severe ablation state; if the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a critical ablation state.

[0133] The target ablation state is determined from the ablation states matched with multiple target gas intake points; if the target ablation state is a critical ablation state, a cable replacement strategy is determined.

[0134] The devices mentioned in this article can be servers, PCs, tablets, mobile phones, etc.

[0135] This application also provides a computer program product that, when executed on a data processing device, is adapted to perform the method steps in this application;

[0136] Alternatively, as those skilled in the art will understand, Figure 4 The structure shown is for illustrative purposes only. Electronic devices can also be smartphones, tablets, handheld computers, mobile internet devices (MIDs), PADs, and other terminal devices. Figure 4 This does not limit the structure of the aforementioned electronic devices. For example, the electronic device may also include components that are more... Figure 4 The more or fewer components shown (such as network interfaces, etc.), or having the same Figure 4 The different configurations shown.

[0137] The memory 402 can be used to store software programs and modules, such as the program instructions / modules corresponding to the method and apparatus for determining the cable erosion state in this embodiment. The processor 404 executes various functional applications and data processing by running the software programs and modules stored in the memory 402, thereby realizing the aforementioned method for determining the cable erosion state. The memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 402 may further include memory remotely located relative to the processor 404, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. Specifically, the memory 402 may be used, but is not limited to, to store information such as circuit status.

[0138] Optionally, the aforementioned electronic device further includes a transmission device 406, which is used to receive or send data via a network. Specific examples of the network may include wired and wireless networks. In one example, the transmission device 406 includes a Network Interface Controller (NIC), which can be connected to other network devices and a router via a network cable to communicate with the Internet or a local area network. In another example, the transmission device 406 is a radio frequency (RF) module used to communicate wirelessly with the Internet.

[0139] In addition, the aforementioned electronic device also includes: a display 408 for displaying the aforementioned information; and a connection bus 410 for connecting the various module components in the aforementioned electronic device.

[0140] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0141] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0142] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0143] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0144] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0145] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0146] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0147] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0148] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0149] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for determining the ablation state of a cable, characterized in that, include: Based on the temperature values ​​collected according to the reference acquisition period and matched with each temperature acquisition point on the cable line, temperature description information for each temperature acquisition point is determined, wherein the temperature description information is used to indicate abnormal conditions of the temperature collected by the temperature acquisition point. Determine at least one target temperature acquisition point on the cable line based on the temperature description information; Based on the location of each target temperature acquisition point, multiple target gas sampling points that have a locational relationship with each target temperature acquisition point are determined; The ablation state of the cable line is determined based on the gas content description information matched with the multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

2. The method according to claim 1, characterized in that, The step of determining temperature description information for each temperature acquisition point based on temperature values ​​matched to each temperature acquisition point on the cable line, acquired according to a reference acquisition period, includes at least one of the following: Determine the temperature difference between any two temperature acquisition points on the cable line to obtain a set of temperature difference values ​​that match each temperature acquisition point as indicated by the temperature description information; The temperature difference between each temperature acquisition point on the cable line and a reference temperature value is determined to obtain the set of temperature difference values ​​that match each temperature acquisition point as indicated by the temperature description information, wherein the reference temperature value is determined based on historical temperature values ​​at historical times.

3. The method according to claim 2, characterized in that, Determining at least one target temperature acquisition point on the cable line based on the temperature description information, and further comprising at least one of the following: If there is a target temperature difference value greater than the first temperature difference threshold in the set of temperature difference values ​​that match the temperature acquisition point, then the temperature acquisition point is determined to be the target temperature acquisition point. Determine the number of reference temperature differences greater than a second temperature difference threshold in the set of temperature difference values ​​that match each of the temperature acquisition points. If the number of reference temperature differences is greater than a third number threshold, determine the temperature acquisition point corresponding to the reference temperature difference value as the target temperature acquisition point.

4. The method according to claim 2, characterized in that, Before determining at least one target temperature acquisition point on the cable line based on the temperature description information, the method further includes: If the temperature difference value in the set of temperature difference values ​​matching the temperature acquisition point is less than or equal to a first temperature difference threshold, a target acquisition period matching the temperature acquisition point is determined. The temperature value of the temperature acquisition point is acquired according to the target acquisition cycle.

5. The method according to claim 1, characterized in that, Based on the location of each target temperature acquisition point, multiple target gas sampling points with locational relationships to each target temperature acquisition point are determined, including: The location of the target temperature acquisition point is determined as the center point of the interval; Based on a first distance length and a second distance length, the target gas collection points on both sides of the center point of the interval are determined, wherein the second distance length is an integer multiple of the first distance length.

6. The method according to claim 5, characterized in that, The ablation state of the cable line is determined based on gas content description information matched with multiple target gas sampling points, including: If the gas content description information matching the target gas sampling point indicates that the ethylene concentration is less than or equal to a first concentration threshold and the hydrogen concentration is greater than or equal to a second concentration threshold, the ablation state matching the target gas sampling point is determined to be a slight ablation state. If there is gas content description information matching the target gas sampling point indicating that the ethylene concentration is greater than the first concentration threshold and the ethylene concentration is less than or equal to the third concentration threshold, the ablation state matching the target gas sampling point is determined to be a general ablation state. If the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the third concentration threshold and the ethylene concentration is less than or equal to the fourth concentration threshold, the ablation state matching the target gas sampling point is determined to be a moderate ablation state. If the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the fourth concentration threshold and the ethylene concentration is less than or equal to the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a severe ablation state. If the gas content description information matching the target gas sampling point indicates that the ethylene concentration is greater than the fifth concentration threshold, the ablation state matching the target gas sampling point is determined to be a critical ablation state.

7. The method according to claim 6, characterized in that, After determining the ablation state of the cable line based on the gas content description information matched with the multiple target gas sampling points, the process includes: The target ablation state is determined from the ablation states that are respectively matched with the multiple target gas intake points; If the target ablation state is the critical ablation state, a cable replacement strategy is determined.

8. A device for determining the ablation state of a cable, characterized in that, include: The temperature monitoring module determines temperature description information for each temperature acquisition point based on the temperature value collected according to the reference acquisition period and matched with the temperature acquisition point on the cable line. The temperature description information is used to indicate abnormal conditions of the temperature collected by the temperature acquisition point. The first determining module determines at least one target temperature acquisition point on the cable line based on the temperature description information; The second determining module determines multiple target gas sampling points that have a positional relationship with each target temperature sampling point, based on the location of each target temperature sampling point. The third determining module determines the ablation state of the cable line based on the gas content description information matched with the multiple target gas sampling points, wherein the gas content description information includes the gas concentrations of various gases.

9. A processor, characterized in that, The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 7 when it runs.

10. An electronic device, characterized in that, The method includes one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the method of any one of claims 1 to 7.

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