Bus duct line management system based on fault analysis

Abstract

The invention relates to the technical field of electric power operation and maintenance management, in particular to a bus duct line management system based on fault analysis, which comprises the following steps: presetting fault information for a bus duct line, and constructing a fault database based on the fault information, the fault information comprises a plurality of fault points, a fault line topological structure corresponding to each fault point and a fault sequence of fault lines; bus duct line topological structure information is obtained to construct a virtual monitoring model, and an incidence relation between the virtual monitoring model and the fault database is established; the fault line of the bus duct line is collected in real time based on the virtual monitoring model, the target fault information corresponding to the fault line is determined based on the association relationship, and operation and maintenance management is performed on the bus duct line according to the target fault information, so that the query range of a fault propagation path from a fault database can be narrowed; the position of the fault point and the fault type can be quickly determined from the fault database, and the operation and maintenance management efficiency of the bus duct line is improved.

Description

Technical Field

[0001] This invention relates to the field of power operation and maintenance management technology, specifically a busbar line management system based on fault analysis. Background Technology

[0002] In power systems, busbars, as crucial power transmission equipment, directly impact the stability and security of the power system through their operation and maintenance. As vital power distribution equipment, busbars are widely used in large buildings, factories, and other locations. However, various faults may occur during busbar operation, such as short circuits, overloads, and poor connections. Currently, the fault monitoring and management of busbars suffers from insufficient efficiency in screening potential lines and fault propagation paths. For example, when a fault propagates to a certain location, it is necessary to determine the actual fault point and fault type from a fault database. This excessively broad query scope in the fault database negatively impacts overall operation and maintenance efficiency.

[0003] Therefore, we propose a bus trunking line management method based on fault analysis to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a bus trunking line management method based on fault analysis to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a busbar trunking line management method based on fault analysis, the method comprising the following steps:

[0006] Fault information is preset for bus trunking lines, and a fault database is built based on the fault information. The fault information includes multiple fault points, the fault line topology corresponding to each fault point, and the fault sequence of the fault lines.

[0007] Obtain busbar trunking topology information to construct a virtual monitoring model, and establish the association between the virtual monitoring model and the fault database;

[0008] The system collects faulty busbar lines in real time based on a virtual monitoring model, determines the target fault information corresponding to the faulty lines based on the correlation, and includes the target fault point and fault type. The system then performs operation and maintenance management of the busbar lines based on the target fault information.

[0009] Preferably, the step of pre-setting fault information for the bus trunking lines and constructing a fault database based on the fault information includes:

[0010] Obtain the bus trunking line topology and assign a unique line identifier to each line; based on the bus trunking line topology, pre-determine multiple fault points, obtain the location information of each pre-determined fault point, the fault line topology corresponding to each pre-determined fault point under different fault types, and the fault sequence of the fault lines to obtain fault information, bind the fault information with the line identifier corresponding to the pre-determined fault point, and mark the pre-determined fault point in the bus trunking line topology according to the location information of the pre-determined fault point to generate a fault database.

[0011] Preferably, the step of acquiring busbar trunking topology information to construct a virtual monitoring model includes:

[0012] Obtain all lines, nodes, and connections between nodes and lines in the busbar trunking; construct a busbar trunking line model based on the lines, nodes, and connections between nodes and lines; and deploy monitoring points in the busbar trunking line model to obtain a virtual monitoring model.

[0013] Preferably, the step of establishing the association between the virtual monitoring model and the fault database includes:

[0014] Obtain the virtual monitoring model and fault database, and configure update groups for the bus trunking lines in the virtual monitoring model. The update group includes an update area and a selected area corresponding to the update area. Set the selected area for the preset fault points in the fault database. Set the association points for the update area and the selected area respectively, and set the synchronization chain between the two association points. Use the synchronization chain connecting the two association points as the association relationship between the virtual monitoring model and the fault database.

[0015] Preferably, the step of configuring an update group for the bus trunking in the corresponding virtual monitoring model, wherein the update group includes an update area and a selected area corresponding to the update area, includes:

[0016] Real-time acquisition of abnormal data in the virtual monitoring model; the faulty line where the abnormal data is located is taken as the fixed line; the area composed of multiple lines and nodes in the bus trunking that are connected to the fixed line is taken as the update area corresponding to the fixed line.

[0017] The bus trunking line in the fault database that matches the line identifier of the fixed line is taken as the following line. The area composed of multiple lines and nodes that are connected to the following line is taken as the selected area. The selected area and the update area have the same range.

[0018] The selected area of ​​the following line that is consistent with the line identifier of the fixed line is taken as the selected area corresponding to the update area of ​​the fixed line, and the update area and the selected area corresponding to the update area are taken as the update group.

[0019] Preferably, the steps of collecting faulty busbar trunking data in real time based on a virtual monitoring model and determining the target fault information corresponding to the faulty line based on the correlation include:

[0020] The system collects faulty busbar lines in real time based on a virtual monitoring model and determines the preliminary update zone corresponding to the faulty lines. The preliminary update zone includes multiple preset fault points and multiple potential lines corresponding to different fault types.

[0021] The movement paths of associated points in the virtual monitoring model are collected in real time, and a target potential route that matches the movement path is selected from multiple potential routes based on the movement paths of the associated points.

[0022] Based on the synchronization chain, the preset fault point corresponding to the fault line topology structure in the fault database that matches the line identifier of the target potential line is determined as the target fault point.

[0023] Determine the fault sequence of the potential target line, determine the fault type based on the fault sequence, and use the fault type and the target fault point as target fault information.

[0024] Preferably, the step of selecting a target potential route that matches the movement path from multiple potential routes based on the movement path of the associated point includes:

[0025] The initial position of the associated points in the virtual monitoring model is monitored in real time. When the associated points have not moved, the initial potential line range is determined based on the multiple preset fault points and multiple potential lines corresponding to different fault types contained in the initial update area.

[0026] When the associated point moves, the movement event is captured in real time and the movement direction and position changes are recorded.

[0027] Based on the new location and direction, select the potential routes that are in the same direction as the movement and can be connected by the new location from multiple potential routes, and delete the routes that are in the opposite direction or cannot be connected, until only one target potential route that is consistent with the actual fault propagation path remains.

[0028] Preferably, the step of determining the fault sequence of the target potential line and determining the fault type based on the fault sequence includes:

[0029] Extract the fault sequence of preset fault points under different fault types from the fault database, and compare the propagation sequence of the actual monitored fault lines with the preset fault sequence in the fault database.

[0030] Find the preset fault sequence that best matches the actual sequence, and determine the corresponding fault type based on the matched preset fault sequence.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] When a fault is actually detected and propagated to a certain location, the preceding lines and corresponding preset fault points in the potential lines are removed. Lines corresponding to non-abnormal parameters are pre-selected based on the real-time propagation path, thereby narrowing the query range of the fault propagation path from the fault database. This allows for faster determination of the location information of the fault point and the fault type corresponding to the fault propagation path from the fault database, thereby improving the efficiency of operation and maintenance management of busbar lines. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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.

[0034] Figure 1 This is a schematic diagram of the method flow of the present invention. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0036] Example

[0037] Please see Figure 1 This invention provides a technical solution for bus trunking line management based on fault analysis: the bus trunking line management method based on fault analysis includes the following steps:

[0038] S1: Preset fault information for bus trunking lines, and build a fault database based on the fault information. The fault information includes multiple fault points, the fault line topology corresponding to each fault point, and the fault sequence of the fault lines.

[0039] The steps for pre-setting fault information for bus trunking lines and constructing a fault database based on the fault information include: obtaining the bus trunking line topology and setting a unique line identifier for each line; pre-setting multiple fault points based on the bus trunking line topology, obtaining the location information of each pre-set fault point, the fault line topology corresponding to each pre-set fault point under different fault types, and the fault sequence of the fault lines to obtain fault information, binding the fault information with the line identifiers corresponding to the pre-set fault points, and marking the pre-set fault points in the bus trunking line topology according to the location information of the pre-set fault points to generate a fault database.

[0040] Specifically, multiple fault points are preset based on the bus trunking lines. Then, the fault lines corresponding to each fault point under different fault types and the fault sequence of the fault lines are obtained. When constructing the fault database, multiple fault points are marked according to their location information in the bus trunking lines, and the fault information is bound to the corresponding fault points. The fault information includes the location information of the fault point, the topology of multiple fault lines corresponding to the fault point under different fault types, and the corresponding fault sequence. The same fault line topology may correspond to different fault types under different fault sequences. Multiple preset fault points are processed in the fault database, which facilitates subsequent filtering of fault points according to the fault sequence of the fault lines. Multiple preset fault points can be preset based on historical fault points or fault points that may fail. They are marked sequentially in the bus trunking line topology according to the location information of the preset fault points. The entire bus trunking line topology marked with the fault points bound to the fault information is used as the fault database.

[0041] S2: Obtain bus trunking line topology information to construct a virtual monitoring model and establish the association between the virtual monitoring model and the fault database;

[0042] The steps for obtaining busbar trunking topology information and constructing a virtual monitoring model include: obtaining all lines, nodes, and connections between nodes and lines in the busbar trunking; constructing a busbar trunking line model based on the lines, nodes, and connections between nodes and lines; and setting up monitoring points in the busbar trunking line model to obtain a virtual monitoring model.

[0043] The steps for establishing the association between the virtual monitoring model and the fault database include: obtaining the virtual monitoring model and the fault database; configuring update groups for the bus trunking lines in the virtual monitoring model, wherein the update group includes an update area and a selected area corresponding to the update area; setting selected areas for preset fault points in the fault database; setting association points for the update area and the selected area respectively; setting a synchronization chain between the two association points; and using the synchronization chain connecting the two association points as the association between the virtual monitoring model and the fault database.

[0044] Specifically, the update area refers to the region that can be updated based on different faulty lines. Different faulty lines refer to the faulty lines where the initial abnormal data is located, which are discontinuous. Discontinuous means that there is no connection between the faulty lines corresponding to the two abnormal data. A connection means that a fault in one line will affect the fault in another line. The selection area is the same as the update area. Through the set synchronization chain, it can be ensured that when the update area changes with the faulty line corresponding to the initial abnormal data, the selection area will change accordingly in the fault database. This determines the selection area corresponding to the faulty line, as well as the preset fault point and fault type corresponding to the selection area, thereby achieving accurate fault location and rapid diagnosis.

[0045] The steps for configuring an update group for busbar trunking lines in the corresponding virtual monitoring model, where the update group includes an update area and a selected area corresponding to the update area, include: real-time collection of abnormal data in the virtual monitoring model; designating the faulty line where the abnormal data is located as the fixed line; designating the area composed of multiple lines and nodes in the busbar trunking that are connected to the fixed line as the update area corresponding to the fixed line; designating the busbar trunking line in the fault database that has the same line identifier as the fixed line as the following line; designating the area composed of multiple lines and nodes that are connected to the following line as the selected area, the selected area having the same range as the update area; designating the selected area of ​​the following line that has the same line identifier as the fixed line as the selected area corresponding to the update area of ​​the fixed line; and designating the update area and the selected area corresponding to the update area as an update group.

[0046] Specifically, the fixed line refers to the line where the abnormal data initially occurred. The associated points on the fixed line correspond to the associated points in the update area. The associated points can move along the propagation path of the fault line corresponding to the fixed line. The fault propagation path is the movement path of the associated points. According to the movement path of the associated points, the associated points in the fault database can be moved synchronously, thus ensuring that the update area and the selected area move simultaneously at all times. The update area is a whole area consisting of potential lines under different fault types of the fixed line and possible preset fault points. When moving the associated points in the fault database, the potential lines and preset fault points corresponding to the fault line topology structure that are consistent with the propagation path of the fixed line will be gradually selected from multiple potential lines in the selected area corresponding to the update area. These will serve as the target fault points and fault types corresponding to the actual fault line topology structure. During the fault line propagation process, the corresponding fault points and fault types can be directly selected, thereby narrowing the scope of troubleshooting for maintenance personnel and improving the effectiveness of maintenance management.

[0047] There is a line mapping relationship between the bus trunking line (first line) corresponding to the fault database and the bus trunking line (second line) in the virtual monitoring model. In the first line, each node includes the fault information corresponding to the node when it is abnormal. The fault information includes information on different fault states of the node and the corresponding preset fault point, which is equivalent to a fault database. Then, the operating parameters of the second line are monitored in real time. When the parameter is abnormal, the location of the abnormal parameter is located and the location of the abnormal parameter is determined as the fault line. The preset fault point of the fault line containing the fault information is found from the first line. Furthermore, the fault information in the first line that is the same as the abnormal position of the subsequent line in the second line is found, and it is determined which of the multiple preset fault points is it. Then, the fault type corresponding to the preset fault point is determined according to the abnormality sequence. The preset fault point and the line area corresponding to the preset fault point are set in advance in the fault database for each position. According to the different positions of the abnormal parameters, the preset fault point and the line area corresponding to the preset fault point are determined from the fault database.

[0048] A correlation is established between the virtual monitoring model and the fault database. The virtual monitoring model is an unmarked busbar trunking topology, while the fault database includes busbar trunking topologies marked with preset fault points. The marked topologies are compared with the unmarked topologies, and the preset fault points are mapped onto the unmarked topologies. The line parameters of the unmarked lines are collected, and those exceeding the abnormal range are identified as faulty lines. Based on the location of the marked topologies corresponding to the faulty lines, multiple fault point distribution areas are determined to form an update zone. Changes in each faulty line will cause changes in the fault points corresponding to the faulty line topology.

[0049] S3: Real-time acquisition of faulty busbar lines based on virtual monitoring model, and determination of target fault information corresponding to the faulty lines based on correlation. The fault information includes the target fault point and fault type.

[0050] The steps of real-time acquisition of faulty busbar trunking lines based on a virtual monitoring model and determination of target fault information corresponding to the faulty lines based on correlation include: real-time acquisition of faulty busbar trunking lines based on the virtual monitoring model and determination of the preliminary update area corresponding to the faulty lines, wherein the preliminary update area includes multiple preset fault points and multiple potential lines corresponding to different fault types; real-time acquisition of the movement paths of the associated points in the virtual monitoring model, selection of target potential lines that match the movement paths from multiple potential lines based on the movement paths of the associated points, determination of preset fault points corresponding to the faulty line topology structure that matches the line identifier of the target potential line in the fault database based on the synchronization chain as target fault points; determination of the fault sequence of the target potential lines, determination of the fault type based on the fault sequence, and determination of the fault type and target fault point as target fault information.

[0051] Specifically, the virtual monitoring model monitors the busbar lines in real time to identify faulty lines. Based on the correspondence between the faulty lines and the update area, a preliminary update area is determined, containing multiple preset fault points and the corresponding faulty line topologies under different fault types. The movement paths of associated points in the virtual monitoring model are collected in real time. As the movement paths become clearer, the range of the update area is dynamically narrowed based on the matching of the movement paths with the preset fault points and faulty line topologies in the update area. Lines and preset fault points that match the movement paths are selected. Based on the propagation order and topology of the faulty lines, information corresponding to the selected area is sequentially filtered from the fault database. Combining the fault order, the fault type corresponding to the fault topology is analyzed. Based on the fault type and the lines and preset fault points that match the movement paths, the target fault point is finally determined. Changes in the update area will drive changes in the selected area through a synchronization chain. In the selected area, preset fault points and fault types corresponding to potential lines consistent with the actual propagation path are determined. Thus, the location of the corresponding preset fault point and the fault type corresponding to the fault propagation path can be synchronously obtained when the propagation path of the faulty line is completed.

[0052] The steps for selecting a target potential route from multiple potential routes based on the movement path of the associated point include: real-time monitoring of the initial position of the associated point in the virtual monitoring model; when the associated point has not moved, determining the initial potential route range based on multiple preset fault points and multiple potential routes corresponding to different fault types contained in the initial update area; when the associated point moves, capturing the movement event in real time and recording the movement direction and position changes; based on the position and direction after movement, selecting routes from multiple potential routes that are consistent with the movement direction and can be connected through the movement position, and deleting routes with opposite directions or that cannot be connected, until only one target potential route consistent with the actual fault propagation path remains.

[0053] Specifically, the update area includes multiple preset fault points and multiple potential routes corresponding to different fault types. When a related point moves one step, the propagation of the fault route increases by one route. Then, a subset of potential routes can be selected. Based on the propagation path of the fault route, the corresponding preset fault point is finally selected from the multiple potential routes. The initial position of the related points in the virtual monitoring model is monitored in real time. When the related point has not moved, the initial range of potential routes is determined based on the multiple preset fault points and multiple potential routes corresponding to different fault types contained in the initial update area. Potential routes are pre-generated based on the fault propagation paths that preset fault points may cause in the fault database. When a related point moves, it means that a new route has been added to the propagation of the fault route. The virtual monitoring model captures the movement events of the related points in real time and records the direction and position changes of the movement. Based on the position and direction of the moved related point, the potential route related to this movement is selected from the multiple potential routes in the update area. Eliminate potential routes that are opposite to the direction of movement or cannot be connected through the current location; obtain the currently identified fault propagation paths, including known fault routes and the movement order of associated points; match the filtered potential routes one by one with the current fault propagation paths. Verify that each potential route is consistent with the known fault propagation paths in terms of connection, order, and direction. Mark inconsistent potential routes for elimination in the next step; based on the matching results, eliminate potential routes that are inconsistent with the current fault propagation path. Retain potential routes that are completely or partially matched to the fault propagation path but have potential; as associated points move further and fault routes continue to propagate, repeat the above preliminary screening, matching verification, and elimination process with each move. Gradually narrow down the range of potential routes to improve the accuracy of screening; when associated points have moved to a certain extent and the fault propagation path is sufficiently clear, after multiple rounds of screening, only one potential route that is completely consistent with the actual fault propagation path remains. Determine this route as the target potential route and accordingly determine the corresponding preset fault point.

[0054] The steps for determining the fault sequence of the target potential line and determining the fault type based on the fault sequence include: extracting the fault sequence of preset fault points under different fault types from the fault database; comparing the propagation sequence of the actual monitored fault lines with the preset fault sequence in the fault database; finding the preset fault sequence that best matches the actual sequence; and determining the corresponding fault type based on the matching preset fault sequence.

[0055] Specifically, changes in faulty lines lead to changes in update zones, thereby determining the corresponding selected zones. The propagation order and topology of faulty lines are used to sequentially filter information corresponding to the selected zones from the fault database. Based on the fault order, the fault type corresponding to the fault topology is determined, along with the preset fault point corresponding to the update zone. If more faulty lines are identified, other potential lines that are not working are filtered out and deleted. Ultimately, only one potential line in the update zone matches the actual fault topology. During this process, the number of preset fault points and faulty lines is gradually reduced, enabling the rapid and accurate retrieval of corresponding fault database content. When a faulty line actually propagates to a certain location, the preceding lines and corresponding preset fault points in the potential lines are removed. Lines corresponding to non-abnormal parameters are pre-filtered based on the real-time propagation path, thus narrowing the query range of the fault propagation path from the fault database. Based on the propagation of faulty lines, potential lines in the update zone are determined, allowing for faster filtering of the corresponding selected zones from the database. Fault information is then filtered within the selected zones, enabling faster determination of the fault location information and the fault type corresponding to the fault propagation path from the fault database, thereby improving the efficiency of busbar line operation and maintenance management.

[0056] S4: Perform operation and maintenance management of the bus trunking lines based on the target fault information.

[0057] A virtual model is built for the busbar trunking, and it is monitored. When abnormal data is detected at a certain location, the subsequent lines corresponding to the faulty line and the possible fault points of the line are selected from various potential lines. There are many possible propagation paths for a fault point, and each one corresponds to a different subsequent line. The fault propagation path is continuously tracked. For each new faulty line, other potential lines with different lines are filtered out and deleted. In the end, the topology of the fault propagation path is directly the topology of the faulty line. The fault point corresponding to the topology of the faulty line is the actual fault point location.

[0058] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bus trunking line management system based on fault analysis, characterized in that, Includes the following steps: Fault information is preset for bus trunking lines, and a fault database is built based on the fault information. The fault information includes multiple fault points, the fault line topology corresponding to each fault point, and the fault sequence of the fault lines. Obtain busbar trunking topology information to construct a virtual monitoring model, and establish the association between the virtual monitoring model and the fault database; The faulty lines of the bus trunking are collected in real time based on the virtual monitoring model, and the target fault information corresponding to the faulty lines is determined based on the correlation. The fault information includes the target fault point and the fault type. The operation and maintenance management of the bus trunking is carried out based on the target fault information.

2. The bus trunking line management method based on fault analysis according to claim 1, characterized in that: The step of pre-setting fault information for busbar lines and constructing a fault database based on the fault information includes: Obtain the bus trunking line topology and assign a unique line identifier to each line; based on the bus trunking line topology, pre-determine multiple fault points, obtain the location information of each pre-determined fault point, the fault line topology corresponding to each pre-determined fault point under different fault types, and the fault sequence of the fault lines to obtain fault information, bind the fault information with the line identifier corresponding to the pre-determined fault point, and mark the pre-determined fault point in the bus trunking line topology according to the location information of the pre-determined fault point to generate a fault database.

3. The bus trunking line management method based on fault analysis according to claim 1, characterized in that: The steps for obtaining busbar trunking topology information and constructing a virtual monitoring model include: Obtain all lines, nodes, and connections between nodes and lines in the busbar trunking; construct a busbar trunking line model based on the lines, nodes, and connections between nodes and lines; and deploy monitoring points in the busbar trunking line model to obtain a virtual monitoring model.

4. The bus trunking line management method based on fault analysis according to claim 1, characterized in that: The steps for establishing the association between the virtual monitoring model and the fault database include: Obtain the virtual monitoring model and fault database, and configure update groups for the bus trunking lines in the virtual monitoring model. The update group includes an update area and a selected area corresponding to the update area. Set the selected area for the preset fault points in the fault database. Set the association points for the update area and the selected area respectively, and set the synchronization chain between the two association points. Use the synchronization chain connecting the two association points as the association relationship between the virtual monitoring model and the fault database.

5. The bus trunking line management method based on fault analysis according to claim 4, characterized in that: The steps for updating the busbar trunking configuration in the corresponding virtual monitoring model, wherein the update group includes an update area and a selected area corresponding to the update area, include: Abnormal data in the virtual monitoring model is collected in real time. The faulty line where the abnormal data is located is taken as the fixed line. The area composed of multiple lines and nodes in the bus trunking that are connected to the fixed line is taken as the update area corresponding to the fixed line. The bus trunking line in the fault database that matches the line identifier of the fixed line is taken as the following line. The area composed of multiple lines and nodes that are connected to the following line is taken as the selected area. The selected area and the update area have the same range. The selected area of ​​the following line that is consistent with the line identifier of the fixed line is taken as the selected area corresponding to the update area of ​​the fixed line, and the update area and the selected area corresponding to the update area are taken as the update group.

6. The bus trunking line management method based on fault analysis according to claim 5, characterized in that: The steps for real-time acquisition of faulty busbar lines based on a virtual monitoring model, and for determining the target fault information corresponding to the faulty lines based on correlation relationships, include: The system collects faulty busbar lines in real time based on a virtual monitoring model and determines the preliminary update zone corresponding to the faulty lines. The preliminary update zone includes multiple preset fault points and multiple potential lines corresponding to different fault types. The movement paths of associated points in the virtual monitoring model are collected in real time, and a target potential route that matches the movement path is selected from multiple potential routes based on the movement paths of the associated points. Based on the synchronization chain, the preset fault point corresponding to the fault line topology structure in the fault database that matches the line identifier of the target potential line is determined as the target fault point. Determine the fault sequence of the potential target line, determine the fault type based on the fault sequence, and use the fault type and the target fault point as target fault information.

7. The bus trunking line management method based on fault analysis according to claim 6, characterized in that: The step of selecting a target potential route that matches the movement path from multiple potential routes based on the movement path of the associated point includes: The initial position of the associated points in the virtual monitoring model is monitored in real time. When the associated points have not moved, the initial potential line range is determined based on the multiple preset fault points and multiple potential lines corresponding to different fault types contained in the initial update area. When the associated point moves, the movement event is captured in real time and the movement direction and position changes are recorded. Based on the new location and direction, select the potential routes that are in the same direction as the movement and can be connected by the new location from multiple potential routes, and delete the routes that are in the opposite direction or cannot be connected, until only one target potential route that is consistent with the actual fault propagation path remains.

8. The bus trunking line management method based on fault analysis according to claim 6, characterized in that: The steps of determining the fault sequence of the target potential line and determining the fault type based on the fault sequence include: Extract the fault sequence of preset fault points under different fault types from the fault database, and compare the propagation sequence of the actual monitored fault lines with the preset fault sequence in the fault database. Find the preset fault sequence that best matches the actual sequence, and determine the corresponding fault type based on the matched preset fault sequence.

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