A positioning method, device and equipment for detecting overhead ground wire anomaly and a medium

Abstract

This invention discloses a method, apparatus, equipment, and medium for locating anomalies in overhead ground wires. The method includes: determining a target area including the overhead ground wire to be detected and at least one overhead ground wire located within the target area, based on preset conditions; for each overhead ground wire to be detected, short-circuiting its start and end points using a double-arm bridge tester to determine its actual resistance value; based on the actual resistance value and corresponding theoretical resistance value of each overhead ground wire to be detected, identifying the abnormal target overhead ground wire; and using a halving method for the target overhead ground wire to determine its abnormal location. The technical solution of this invention optimizes the operation process of overhead ground wire detection and location, achieving accurate detection and location of overhead ground wire anomalies, simplifying the operation process, improving detection efficiency, and ensuring personnel safety.

Description

Technical Field

[0001] This invention relates to the field of overhead power line technology, and in particular to a method, apparatus, equipment and medium for locating abnormalities in overhead ground wires. Background Technology

[0002] Overhead ground wires are an important component of power transmission lines and play a crucial role in lightning protection. If an overhead ground wire falls due to wear or broken strands, it can affect the safe operation of the power grid and cause safety accidents. Therefore, the detection and location of anomalies in overhead ground wires are of great significance.

[0003] The traditional method is to periodically send personnel to climb the towers and inspect each connection point between the overhead ground wire and the power tower.

[0004] The above methods are inefficient at detecting anomalies in overhead ground wires and pose significant safety hazards. Summary of the Invention

[0005] This invention provides a method, apparatus, equipment, and medium for locating anomalies in overhead ground wires. It enables the detection and location of anomalies in overhead ground wires, simplifying the operation process, improving detection efficiency, and ensuring personnel safety.

[0006] In a first aspect, embodiments of the present invention provide a method for locating abnormalities in overhead ground wires, the method comprising:

[0007] Based on preset conditions, a target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area are determined.

[0008] For each overhead ground wire to be tested, the beginning and end of the current overhead ground wire to be tested are shorted by a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested;

[0009] Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, the abnormal target overhead ground wire is determined from the overhead ground wires to be tested.

[0010] The abnormal location of the target overhead ground wire is determined by using a halving process.

[0011] Secondly, embodiments of the present invention also provide a positioning device for detecting abnormalities in overhead ground wires, the device comprising:

[0012] The overhead ground wire detection module is used to determine, based on preset conditions, a target area including the overhead ground wire to be detected and at least one overhead ground wire to be detected located within the target area.

[0013] The actual resistance measurement module is used to determine the actual resistance value of each overhead ground wire to be tested by shorting the beginning and end of the current overhead ground wire through a double-arm bridge tester.

[0014] The target overhead ground wire determination module is used to determine the abnormal target overhead ground wire from the overhead ground wires to be tested based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested.

[0015] The abnormal location determination module is used to determine the abnormal location of the target overhead ground wire by using a halving process.

[0016] Thirdly, the present invention also provides an electronic device comprising:

[0017] At least one processor; and

[0018] A memory communicatively connected to the at least one processor; wherein,

[0019] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the method for locating abnormal overhead ground wires according to any embodiment of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions, the computer instructions being configured to cause a processor to execute and implement the method for locating abnormal overhead ground wires as described in any embodiment of the present invention.

[0021] The technical solution of this invention, based on preset conditions, determines a target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area. For each overhead ground wire to be tested, the start and end ends of the current overhead ground wire to be tested are short-circuited using a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested. Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, an abnormal target overhead ground wire is determined from the overhead ground wires to be tested. For the target overhead ground wire, a halving method is used to determine the abnormal location of the corresponding target overhead ground wire. This solves the problems of low efficiency and high safety hazards of traditional overhead ground wire anomaly detection methods, simplifies the operation process, improves the detection efficiency of overhead ground wire anomalies, and further ensures personnel safety.

[0022] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a flowchart of a method for locating abnormalities in overhead ground wires according to Embodiment 1 of the present invention;

[0025] Figure 2 This is a diagram illustrating an actual application scenario of an overhead ground wire according to an embodiment of the present invention.

[0026] Figure 3 This is a flowchart of a method for locating abnormalities in overhead ground wires according to Embodiment 2 of the present invention;

[0027] Figure 4 This is a flowchart of a method for locating abnormalities in overhead ground wires according to Embodiment 3 of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a positioning device for detecting abnormalities in overhead ground wires according to Embodiment 4 of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of an electronic device that implements the method for locating abnormal overhead ground wires according to embodiments of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a 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.

[0032] Before introducing the technical solutions of the embodiments of the present invention, the application scenarios of the method for locating abnormalities in overhead ground wires will be described in detail: See Figure 2 An overhead ground wire is a ground wire installed above an overhead power line to protect it. In practice, it is usually fixed by embedding it into a groove on each tower or by using hooks on the tower. When a thundercloud discharges to the ground above the line, the lightning path is likely to strike the overhead ground wire first, causing current to flow along the tower into the ground, thus protecting the conductor and ensuring normal power transmission. Because the connection between the overhead ground wire and the tower is not specially treated, it is prone to wear or breakage under lightning current, corrosion, or friction, causing the overhead ground wire to fall and resulting in an accident. Therefore, it is necessary to perform abnormality detection and location checks on the overhead ground wire.

[0033] Example 1

[0034] Figure 1 This is a flowchart of a method for locating abnormal overhead ground wires according to Embodiment 1 of the present invention. This embodiment is applicable to the detection and location of abnormal overhead ground wires. The method can be executed by a device for locating abnormal overhead ground wires. The device for locating abnormal overhead ground wires can be implemented in hardware and / or software and can be configured in an electronic device.

[0035] like Figure 1 As shown, the method includes:

[0036] S110. Based on preset conditions, determine the target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area.

[0037] The preset conditions refer to pre-defined weather, time, and other conditions under which the probability of abnormalities occurring in the overhead ground wire is considered high. The overhead ground wire to be inspected refers to an overhead ground wire that may exhibit abnormalities such as wear or broken strands. The target area refers to the area where the overhead ground wire to be inspected is located.

[0038] Optionally, the preset conditions include at least one of the following: environmental information; wherein the environmental information includes rainfall information and / or lightning information; and the service life information corresponding to each overhead ground wire to be tested.

[0039] Among these, environmental information refers to rainfall and / or lightning information in the target area where the overhead ground wire to be tested is located. Rainfall information is a quantitative description of the average annual rainfall in the area where the overhead ground wire is located, and lightning information is the frequency of lightning weather in the area where the overhead ground wire is located. Service life information refers to the length of time the overhead ground wire to be tested has been in use. Furthermore, overhead ground wires in areas with harsh environments and frequent thunderstorms, as well as overhead ground wires with long service lives, are more prone to corrosion, rust, wear, or broken strands.

[0040] Specifically, based on regional thunderstorm weather and the usage time of overhead ground wires, target areas where corrosion, rust, wear, or broken strands of overhead ground wires may occur are identified, and the overhead ground wires in these target areas are selected as the overhead ground wires to be tested. Since there may be multiple overhead ground wires in an area, the number of overhead ground wires to be tested in the target area may be one or more, which is not limited in this embodiment.

[0041] For example, the preset conditions are: average annual rainfall ≥ 750 mm, average annual lightning strikes ≥ 10 times. If the average annual rainfall in region A is 800 mm and the average annual lightning strikes are greater than 12 times, then anomaly detection will be performed on the overhead ground wires in region A. The target area is region A, and at least one overhead ground wire in region A will be selected as the overhead ground wire to be detected.

[0042] Furthermore, according to the pre-set target rules, at least one overhead ground wire to be detected is determined from each overhead ground wire in the target area.

[0043] Among them, the target rule refers to the rule set by the service life information of the overhead ground wire to determine whether the overhead ground wire is the overhead ground wire to be tested.

[0044] For example, if the target rule is that the service life of an overhead ground wire exceeds 3 years, then it is identified as an overhead ground wire to be tested. The service life of each overhead ground wire in the target area is calculated. If it is greater than 3 years, then the corresponding overhead ground wire is identified as an overhead ground wire to be tested.

[0045] S120. For each overhead ground wire to be tested, short-circuit the beginning and end of the current overhead ground wire to be tested using a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested.

[0046] The beginning and end of the overhead ground wire refer to the left and right ends of the first and last towers of the overhead ground wire to be tested in the target area, respectively. Furthermore, if one end is defined as the beginning segment, the other end is the end segment. The double-arm bridge tester is an instrument for measuring the resistance of the overhead ground wire under test, offering high accuracy and thus helping to reduce errors in the test results. The actual resistance value refers to the actual resistance value of the overhead ground wire after prolonged operation, wear, oxidation, and conductivity.

[0047] Specifically, since the actual resistance values ​​of each overhead ground wire to be tested are measured in the same way, the resistance measurement of one of the overhead ground wires to be tested will be explained below: the actual resistance values ​​are measured at the beginning and end of the overhead ground wire to be tested using a double-arm bridge tester, thereby providing a reference for judging the abnormal conditions of the overhead ground wire.

[0048] Optionally, the beginning of the current overhead ground wire to be tested is shorted with an insulated wire, and an insulated wire is used to lead out the end of the wire, which is then connected to the double-arm bridge tester. The actual resistance value of the current overhead ground wire to be tested is measured using the double-arm bridge tester.

[0049] Among them, insulated wires refer to low-resistance wires.

[0050] Specifically, since the actual resistance value of each overhead ground wire to be tested is measured in the same way, the resistance measurement of one of the overhead ground wires to be tested will be explained below: For the current overhead ground wire to be tested, its first end is short-circuited with an insulated wire, and the end is connected to a double-arm bridge tester through a wire to measure the actual resistance value of the current overhead ground wire to be tested.

[0051] Furthermore, since the resistance of the overhead ground wire to be tested is very small, using insulated wires for short-circuiting and lead-in has the advantage that the insulated wires will not affect the measurement of the actual resistance value, thus reducing the measurement error.

[0052] S130. Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, determine the abnormal target overhead ground wire from the overhead ground wires to be tested.

[0053] The theoretical resistance value refers to the resistance of the overhead ground wire under test, excluding external environmental factors and service life. The target overhead ground wire refers to an overhead ground wire whose actual resistance value exceeds a certain acceptable range.

[0054] Specifically, since the processing method for each overhead ground wire to be tested is the same, the processing of one overhead ground wire to be tested will be explained below: the actual resistance value and the theoretical resistance value of the current overhead ground wire to be tested are compared. If the difference between the actual resistance value and the theoretical resistance value of the current overhead ground wire to be tested is greater than the preset range, then the current overhead ground wire to be tested is determined as an abnormal target overhead ground wire.

[0055] For example, if the actual resistance of the overhead ground wire A to be tested, measured by a double-arm bridge tester, is 1Ω, and the theoretical resistance of the overhead ground wire A to be tested is 0.2Ω, and the resistance of the overhead ground wire A to be tested is increased by five times, then it can be determined that the current overhead ground wire A to be tested is an abnormal target overhead ground wire.

[0056] Optionally, for each overhead ground wire to be tested, the theoretical resistance value of the current overhead ground wire to be tested is determined based on the cross-sectional area, length and material information of the current overhead ground wire to be tested; if the actual resistance value is greater than the theoretical resistance value, then the current overhead ground wire to be tested is determined as the target overhead ground wire.

[0057] The length of the overhead ground wire to be tested refers to the length of the entire circuit from the beginning to the end of the overhead ground wire.

[0058] Specifically, since the processing method for each overhead ground wire to be tested is the same, the processing of one overhead ground wire to be tested will be explained below: Based on the factory parameters and installation records, the cross-sectional area, length, and material information of the current overhead ground wire to be tested can be obtained. The theoretical resistance value of the current overhead ground wire to be tested can be obtained according to the resistance calculation formula. The actual resistance value of the current overhead ground wire to be tested is compared with the theoretical resistance value. If the difference between the actual resistance and the theoretical resistance is within an unacceptable range, then the current overhead ground wire to be tested is determined to be the target overhead ground wire.

[0059] For example, if the actual resistance value of the current overhead ground wire to be tested is 1Ω as measured by the double-arm bridge tester, and the theoretical resistance value of the current overhead ground wire to be tested is 0.5Ω based on the cross-sectional area, length, material information, and resistance calculation formula, the resistance value of the current overhead ground wire to be tested has doubled, which is unacceptable. Therefore, the current overhead ground wire to be tested is determined to be the target overhead ground wire.

[0060] S140. The target overhead ground wire is subjected to a halving process to determine the abnormal location of the corresponding target overhead ground wire.

[0061] The "halving process" refers to dividing the target overhead ground wire into two equal parts based on its length and / or the number of connecting towers, and then determining the abnormal location from the two parts.

[0062] For example, based on the 100 towers corresponding to the target overhead ground wire, the 100 towers are divided into two parts, with 50 towers in each part. The resistance values ​​of the two parts are measured separately, thereby narrowing down the range of abnormal locations. The advantage is that it can reduce the number of measurements and save on inspection manpower and material costs.

[0063] The technical solution of this invention, based on preset conditions, determines a target area including an overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area. For each overhead ground wire to be tested, the beginning and end of the current overhead ground wire to be tested are short-circuited using a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested. Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, an abnormal target overhead ground wire is determined from the overhead ground wires to be tested. For the target overhead ground wire, a halving method is used to determine the abnormal location of the corresponding target overhead ground wire. This solves the problems of low efficiency and high safety hazards in traditional overhead ground wire anomaly detection methods, simplifies the operation process, improves the detection efficiency of overhead ground wire anomalies, and further ensures personnel safety.

[0064] Example 2

[0065] Figure 3 The flowchart below shows a method for locating abnormal overhead ground wires according to Embodiment 2 of the present invention. Based on the foregoing embodiments, the method of halving the target overhead ground wire can be used to further refine the determination of the abnormal location of the target overhead ground wire. For the specific implementation method, please refer to the detailed description of the embodiments of the present invention. Technical terms that are the same as or corresponding to those in the above embodiments will not be repeated here.

[0066] like Figure 3 As shown, the method includes:

[0067] S210. Based on preset conditions, determine the target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area.

[0068] S220. For each overhead ground wire to be tested, short-circuit the beginning and end of the current overhead ground wire to be tested using a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested.

[0069] S230. Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, determine the abnormal target overhead ground wire from the overhead ground wires to be tested.

[0070] S240. Based on the length of the target overhead ground wire, the target overhead ground wire is divided into two parts to obtain two first overhead ground wires.

[0071] The first overhead ground wire refers to the two overhead ground wires obtained by splitting the target overhead ground wire in half.

[0072] For example, if the length of the target overhead ground wire is 100km, then the length of the target overhead ground wire on one side of the tower is 50km. In this case, the target overhead ground wire is split in half at the 25km position to obtain two first overhead ground wires.

[0073] S250. For each first overhead ground wire, repeatedly execute the process of determining the theoretical resistance value and actual resistance value of the current first overhead ground wire, and determine whether the current first overhead ground wire is the target overhead ground wire based on the theoretical resistance value and the actual resistance value.

[0074] Specifically, since the processing method for each first overhead ground wire is the same, the processing of one of the first overhead ground wires will be explained below: For the current first overhead ground wire, one end is short-circuited with an insulated wire, and the other end is connected to a double-arm bridge tester to measure the actual resistance value of the current first overhead ground wire. Based on the factory parameters and installation records, the cross-sectional area, length, and material information of the current first overhead ground wire can be obtained. The theoretical resistance value of the current first overhead ground wire can be obtained using the resistance calculation formula. The actual resistance value is compared with the theoretical resistance value. If the difference between the actual and theoretical resistance is within an unacceptable range, then the current first overhead ground wire is determined to be the target overhead ground wire.

[0075] S260. If so, repeat the steps of dividing the target overhead ground wire into two parts and determining whether the first overhead ground wire after being divided into two parts is the target overhead ground wire, until the abnormal location is determined.

[0076] Among them, the abnormal location refers to the location of the connection between the overhead ground wire to be tested and the tower where the resistance value is abnormal.

[0077] Specifically, the target overhead ground wire identified in S250 is divided into two parts. The actual resistance values ​​of these two parts are then measured, and the relationship between the actual and theoretical resistance values ​​is compared to determine the corresponding target overhead ground wire. This process is repeated until the abnormal location is identified, effectively preventing the overhead ground wire from falling due to wear or broken strands.

[0078] The technical solution of this invention, based on preset conditions, determines a target area including an overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area; for each overhead ground wire to be tested, the beginning and end of the current overhead ground wire to be tested are short-circuited using a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested; based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, an abnormal target overhead ground wire is identified from the overhead ground wires to be tested; according to the length of the target overhead ground wire, the target overhead ground wire is divided into two parts to obtain two first overhead ground wires. For each first overhead ground wire, the theoretical resistance value and actual resistance value of the current first overhead ground wire are repeatedly determined, and based on the theoretical resistance value and the actual resistance value, it is determined whether the current first overhead ground wire is the target overhead ground wire; if so, the steps of dividing the target overhead ground wire into two parts and determining whether the first overhead ground wire after dividing into two parts is the target overhead ground wire are repeated until the abnormal location is determined. This simplifies the number of overhead ground wires to be detected, optimizes the process of locating abnormal overhead ground wires, improves the efficiency of the whole process, and reduces the cost of detecting abnormal overhead ground wires.

[0079] Example 3

[0080] Figure 4 This is a flowchart of a method for locating abnormal overhead ground wires according to Embodiment 3 of the present invention. Based on the foregoing embodiments, the method for locating abnormal overhead ground wires can be optimized. For specific implementation methods, please refer to the detailed description of the embodiments of the present invention. Technical terms that are the same as or corresponding to those in the above embodiments will not be repeated here.

[0081] like Figure 4 As shown, the method includes:

[0082] S310. Based on preset conditions, determine at least one target area including the overhead ground wire to be tested, and determine at least one overhead ground wire to be tested in each target area.

[0083] For example, the preset conditions are: average annual rainfall ≥ 750 mm, average annual lightning strikes ≥ 10 times. If the average annual rainfall in region A is 800 mm and the average annual lightning strikes are 12 times, then anomaly detection will be performed on the overhead ground wires in region A. The target area is region A, and at least one overhead ground wire in region A will be selected as the overhead ground wire to be detected.

[0084] S320. For each overhead ground wire to be tested, short-circuit the beginning of the current overhead ground wire to be tested with an insulated wire, and use an insulated wire to lead out the end to a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested.

[0085] For example, since the actual resistance value of each overhead ground wire to be tested is measured in the same way, the resistance measurement of one of the overhead ground wires to be tested will be described below: For the current overhead ground wire to be tested, its first end is short-circuited with an insulated wire, and the end is connected to a double-arm bridge tester through an insulated wire to obtain the actual resistance value of the current overhead ground wire to be tested as 0.7Ω.

[0086] S330. For each overhead ground wire to be tested, determine the theoretical resistance value of the current overhead ground wire to be tested based on its cross-sectional area, length, and material information.

[0087] For example, the cross-sectional area of ​​the overhead ground wire to be tested is 6mm². 2 It has a length of 2000m and a conductor resistivity of 0.001Ω·mm. 2 / m, substituting into the formula, the theoretical resistance value of the overhead ground wire to be tested is 0.333Ω.

[0088] S340. For each overhead ground wire to be tested, compare the resistance difference between the actual resistance value and the theoretical resistance value of the current overhead ground wire to be tested, and determine the target overhead ground wire.

[0089] Based on the above example, the actual resistance of the overhead ground wire to be tested is 0.7Ω, and the theoretical resistance is 0.333Ω. According to the safety operation standards, the overhead ground wire to be tested is determined to be the target overhead ground wire.

[0090] S350. For each target overhead ground wire, the current target overhead ground wire is halved to obtain two first overhead ground wires.

[0091] For example, based on the 100 towers corresponding to the target overhead ground wire, the 100 towers are divided into two parts, each part including 50 towers and the overhead ground wire corresponding to each tower.

[0092] S360. For each first overhead ground wire, repeatedly execute the process of determining the theoretical resistance value and actual resistance value of the current first overhead ground wire, and determine whether the current first overhead ground wire is the target overhead ground wire based on the theoretical resistance value and the actual resistance value.

[0093] S370. If so, repeat the steps of dividing the target overhead ground wire into two parts and determining whether the first overhead ground wire after being divided into two parts is the target overhead ground wire, until the abnormal location is determined.

[0094] The technical solution of this invention, based on preset conditions, determines at least one target area including an overhead ground wire to be tested, and at least one overhead ground wire to be tested within each target area; for each overhead ground wire to be tested, the beginning of the current overhead ground wire to be tested is short-circuited with an insulated wire, and the end is led out with an insulated wire and connected to a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested; for each overhead ground wire to be tested, the theoretical resistance value of the current overhead ground wire to be tested is determined based on the cross-sectional area, length, and material information of the current overhead ground wire to be tested; for each overhead ground wire to be tested, the resistance difference between the actual resistance value and the theoretical resistance value is compared to determine the target overhead ground wire. For each target overhead ground wire, the current target overhead ground wire is halved to obtain two first overhead ground wires. For each first overhead ground wire, the theoretical resistance value and actual resistance value of the current first overhead ground wire are repeatedly determined, and based on the theoretical resistance value and the actual resistance value, it is determined whether the current first overhead ground wire is the target overhead ground wire. If so, the steps of dividing the target overhead ground wire into two parts and determining whether the first overhead ground wire after the division into two parts is the target overhead ground wire are repeated until the abnormal location is determined. This solves the problems of low efficiency and high safety hazards of traditional overhead ground wire anomaly detection methods, simplifies the operation process, improves the detection efficiency of overhead ground wire anomalies, and further ensures personnel safety.

[0095] Example 4

[0096] Figure 5 This is a schematic diagram of a positioning device for detecting abnormalities in overhead ground wires, provided in Embodiment 3 of the present invention.

[0097] like Figure 5 As shown, the device includes:

[0098] The overhead ground wire to be tested determination module 410 is used to determine, based on preset conditions, a target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area; the actual resistance measurement module 420 is used to determine the actual resistance value of each overhead ground wire to be tested by short-circuiting the beginning and end of the current overhead ground wire to be tested using a double-arm bridge tester; the target overhead ground wire determination module 430 is used to determine the abnormal target overhead ground wire from the overhead ground wires to be tested based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested; the abnormal location determination module 440 is used to determine the abnormal location of the corresponding target overhead ground wire by using a halving method for the target overhead ground wire.

[0099] Optionally, the preset conditions include at least one of the following: environmental information; wherein the environmental information includes rainfall information and / or lightning information; and the service life information corresponding to each overhead ground wire to be tested.

[0100] Based on the above technical solutions, the module for determining the overhead ground wire to be tested is also used for,

[0101] According to the pre-set target rules, at least one overhead ground wire to be detected is determined from each overhead ground wire in the target area.

[0102] Based on the above technical solutions, the actual resistance measurement module is specifically used for,

[0103] Insulated wires are used to lead out from the beginning and end of the current overhead ground wire to be tested, and the wires are connected to the double-arm bridge tester; the actual resistance value of the current overhead ground wire to be tested is measured based on the double-arm bridge tester.

[0104] Based on the above technical solutions, the target overhead ground wire determination module is specifically used for,

[0105] For each overhead ground wire to be tested, the theoretical resistance value of the current overhead ground wire to be tested is determined based on its cross-sectional area, length, and material information. If the actual resistance value is greater than the theoretical resistance value, then the current overhead ground wire to be tested is determined to be the target overhead ground wire.

[0106] Based on the above technical solutions, the abnormal location determination module is specifically used for,

[0107] Based on the length of the target overhead ground wire, the target overhead ground wire is divided into two parts to obtain two first overhead ground wires. For each first overhead ground wire, the theoretical resistance value and actual resistance value of the current first overhead ground wire are repeatedly determined, and based on the theoretical resistance value and the actual resistance value, it is determined whether the current first overhead ground wire is the target overhead ground wire. If so, the steps of dividing the target overhead ground wire into two parts and determining whether the first overhead ground wire after the division into two parts is the target overhead ground wire are repeated until an abnormal location is determined.

[0108] The technical solution of this invention, based on preset conditions, determines a target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area. For each overhead ground wire to be tested, the start and end ends of the current overhead ground wire to be tested are short-circuited using a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested. Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, an abnormal target overhead ground wire is determined from the overhead ground wires to be tested. For the target overhead ground wire, a halving method is used to determine the abnormal location of the corresponding target overhead ground wire. This solves the problems of low efficiency and high safety hazards of traditional overhead ground wire anomaly detection methods, simplifies the operation process, improves the detection efficiency of overhead ground wire anomalies, and further ensures personnel safety.

[0109] The positioning device for detecting abnormal overhead ground wires provided in this embodiment of the invention can execute the positioning method for detecting abnormal overhead ground wires provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0110] Example 5

[0111] Figure 6 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0112] like Figure 6 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0113] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0114] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the method for locating anomalies in overhead ground wires.

[0115] In some embodiments, the method for locating abnormal overhead ground wires can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for locating abnormal overhead ground wires described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the method for locating abnormal overhead ground wires by any other suitable means (e.g., by means of firmware).

[0116] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0117] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0118] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0119] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0120] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0121] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0122] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0123] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for locating anomalies in overhead ground wires, characterized in that, include: Based on preset conditions, a target area including the overhead ground wire to be tested and at least one overhead ground wire to be tested located within the target area are determined. For each overhead ground wire to be tested, the beginning and end of the current overhead ground wire to be tested are shorted by a double-arm bridge tester to determine the actual resistance value of the current overhead ground wire to be tested; Based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested, the abnormal target overhead ground wire is determined from the overhead ground wires to be tested. The abnormal location of the target overhead ground wire is determined by using a halving process. The preset conditions include at least one of the following: Environmental information; wherein the environmental information includes rainfall information and / or lightning information; Information on the service life of each overhead ground wire to be tested.

2. The method according to claim 1, characterized in that, Identifying at least one overhead ground wire to be tested located within the target area includes: According to the pre-set target rules, at least one overhead ground wire to be detected is determined from each overhead ground wire in the target area.

3. The method according to claim 1, characterized in that, The step of short-circuiting the beginning and end of the overhead ground wire to be tested using a double-arm bridge tester to determine the actual resistance value of the overhead ground wire to be tested includes: The beginning of the overhead ground wire to be tested is shorted with an insulated wire, and an insulated wire is used to lead out the end of the wire and connect it to the double-arm bridge tester based on the insulated wire. The actual resistance value of the overhead ground wire to be tested is measured using the double-arm bridge tester.

4. The method according to claim 1, characterized in that, The process of identifying abnormal target overhead ground wires based on the actual resistance value and corresponding theoretical resistance value of each overhead ground wire to be tested includes: For each overhead ground wire to be tested, the theoretical resistance value of the current overhead ground wire to be tested is determined based on its cross-sectional area, length, and the material used. If the actual resistance value is greater than the theoretical resistance value, then the current overhead ground wire to be tested is determined to be the target overhead ground wire.

5. The method according to claim 1, characterized in that, The method of halving the target overhead ground wire to determine the abnormal location of the corresponding target overhead ground wire includes: Based on the length of the target overhead ground wire, the target overhead ground wire is divided into two parts to obtain two first overhead ground wires; For each first overhead ground wire, the process of determining the theoretical resistance value and actual resistance value of the current first overhead ground wire is repeated, and the process of determining whether the current first overhead ground wire is the target overhead ground wire is based on the theoretical resistance value and the actual resistance value. If so, repeat the steps of dividing the target overhead ground wire into two parts and determining whether the first overhead ground wire after the division into two parts is the target overhead ground wire, until the abnormal location is determined.

6. A positioning device for detecting abnormal overhead ground wires, used to perform the positioning method for detecting abnormal overhead ground wires as described in any one of claims 1-5, characterized in that, include: The overhead ground wire detection module is used to determine, based on preset conditions, a target area including the overhead ground wire to be detected and at least one overhead ground wire to be detected located within the target area. The actual resistance measurement module is used to determine the actual resistance value of each overhead ground wire to be tested by shorting the beginning and end of the current overhead ground wire through a double-arm bridge tester. The target overhead ground wire determination module is used to determine the abnormal target overhead ground wire from the overhead ground wires to be tested based on the actual resistance value and the corresponding theoretical resistance value of each overhead ground wire to be tested. The abnormal location determination module is used to determine the abnormal location of the target overhead ground wire by using a halving process.

7. The apparatus according to claim 6, characterized in that, The actual resistance measurement module includes: A wiring unit is used to lead out insulated wires from the beginning and end of the current overhead ground wire to be tested, and to connect to the double-arm bridge tester based on the insulated wires; The resistance measurement unit is used to measure the actual resistance value of the overhead ground wire to be tested based on the double-arm bridge tester.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the method for locating abnormalities in overhead ground wires as described in any one of claims 1-5.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method for locating abnormalities in overhead ground wires as described in any one of claims 1-5.

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