CAD (computer-aided design)-based overhead line survey intelligent drawing method, device, equipment and medium

Abstract

The invention discloses an overhead line survey intelligent drawing method, device and equipment based on CAD (computer-aided design) and a medium. The method comprises the following steps: acquiring project parameters of a target project, a tower footing number file, a digital elevation model and a digital orthophoto map; wherein the project parameters at least comprise a tower footing half-foot distance parameter and a path width parameter; determining a path center line, and respectively determining a channel topographic map range line and a tower position data result table in the CAD drawing based on the path center line in combination with the path width parameter and the tower footing number file; determining a tower footing cross-section diagram and a tower position topographic map based on the channel topographic map range line, the tower footing half-root distance parameter and the tower position data result table; and generating a path plane cross-section diagram based on the digital orthophoto map, the digital elevation model and a preset left and right cross-section range. According to the technical scheme, through processing operation based on CAD secondary development, automatic generation of the tower footing section, the tower position terrain and the path plane section is achieved, and the efficiency and quality of overhead line surveying and mapping are improved.

Description

Technical Field

[0001] This invention relates to the field of mapping and design technology, and in particular to a CAD-based intelligent mapping method, apparatus, equipment, and medium for overhead line surveying. Background Technology

[0002] Overhead line surveying and mapping is a core part of transmission line engineering design, and the quality and efficiency of its results directly affect the overall progress of line design, construction and operation and maintenance.

[0003] The current standard production process for overhead line surveying and mapping mainly relies on RTK field measurements to obtain discrete topographic points. Tower location topographic maps and tower base cross-sections are then manually compiled in a CAD platform, and tower base coordinates and elevation parameters are manually calculated based on the route centerline. Simultaneously, the RTK discrete points are imported into software to complete the overhead line plan and profile drawing. However, manually editing tower location topographic maps and tower base cross-sections directly in CAD involves numerous repetitive operations, low mapping efficiency, and a high probability of human error, making it difficult to guarantee the consistency and standardization of the results. Furthermore, importing discrete points into software to generate route plan and profile drawings presents problems such as unfriendly human-computer interaction, cumbersome data format conversion, and the inability to decompose tasks in parallel. This makes it difficult to meet the tight schedules and high-quality requirements of large-scale projects such as long routes and complex terrain. Summary of the Invention

[0004] This invention provides a CAD-based intelligent mapping method, device, equipment, and medium for overhead line surveying. Through CAD-based secondary development processing operations, it realizes the automated generation of overhead line survey results such as tower base cross-sections, tower location topography, and route horizontal cross-sections, thereby improving the efficiency and quality of overhead line surveying and mapping.

[0005] According to one aspect of the present invention, a CAD-based intelligent mapping method for overhead line surveying is provided, comprising: Obtain the project parameters, tower base numbering file, digital elevation model, and digital orthophoto map of the target project; wherein, the project parameters include at least the tower base half-base opening parameter and the path width parameter; Determine the path centerline, and based on the path centerline, combine the path width parameter and the tower base number file to determine the channel topographic map range line and tower location data result table in the CAD drawing respectively; Based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table, determine the tower base cross-section diagram and the tower location topographic map; A path plan view is generated based on the digital orthophoto map, the digital elevation model, and the preset left and right cross-sectional ranges.

[0006] According to another aspect of the present invention, a CAD-based intelligent mapping device for overhead line surveying is provided, comprising: The data acquisition module is used to acquire the project parameters, digital elevation model, and digital orthophoto map of the target project; wherein, the project parameters include at least the tower base half-base opening parameter, the path width parameter, and the path centerline; Obtain the tower base number file, and based on the path centerline, combine the path width parameter and the tower base number file to determine the channel topographic map range line and tower location data result table in the CAD drawing respectively; Based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table, determine the tower base cross-section diagram and the tower location topographic map; A path plan view is generated based on the digital orthophoto map, the digital elevation model, and the preset left and right cross-sectional ranges.

[0007] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising: 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, which is then executed by the at least one processor to enable the at least one processor to perform the CAD-based intelligent mapping method for overhead line surveying as described in any embodiment of the present invention.

[0008] 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 CAD-based intelligent mapping method for overhead line surveying as described in any embodiment of the present invention.

[0009] The technical solution of this invention involves acquiring project parameters, tower base number files, digital elevation models, and digital orthophoto maps of the target project. The project parameters include at least tower base half-width parameters and path width parameters. The path centerline is determined, and based on the path centerline, combined with the path width parameters and tower base number files, the corridor topographic map boundary line and tower location data result table are determined in the CAD drawing. Based on the corridor topographic map boundary line, tower base half-width parameters, and tower location data result table, tower base cross-section diagrams and tower location topographic maps are determined. Based on the digital orthophoto map, digital elevation model, and preset left and right cross-section ranges, a path horizontal cross-section diagram is generated. This technical solution, through CAD secondary development processing operations, achieves automated generation of overhead line survey results such as tower base cross-sections, tower location topography, and path horizontal cross-sections, improving the efficiency and quality of overhead line surveying and mapping.

[0010] 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

[0011] 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.

[0012] Figure 1 This is a flowchart of an intelligent mapping method for overhead line surveying based on CAD, provided in Embodiment 1 of the present invention.

[0013] Figure 2 This is a flowchart of an intelligent mapping method for overhead line surveying based on CAD, provided in Embodiment 2 of the present invention.

[0014] Figure 3 This is an example diagram of the range line of a channel topographic map provided according to Embodiment 2 of the present invention.

[0015] Figure 4 This is a structural schematic diagram of an intelligent mapping device for overhead line surveying based on CAD, provided in Embodiment 3 of the present invention.

[0016] Figure 5 This is a schematic diagram of the structure of an electronic device provided according to Embodiment 4 of the present invention. Detailed Implementation

[0017] 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.

[0018] 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 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.

[0019] Example 1 Figure 1 This is a flowchart of a CAD-based intelligent mapping method for overhead line surveying according to Embodiment 1 of the present invention. This embodiment is applicable to the automatic generation of overhead line surveying results based on secondary development of CAD. The method can be executed by a CAD-based intelligent mapping device for overhead line surveying. This CAD-based intelligent mapping device can be implemented in hardware and / or software, and can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes: S110. Obtain the project parameters, tower base number file, digital elevation model, and digital orthophoto map of the target project.

[0020] The project parameters include at least the tower base half-base opening parameter and the path width parameter. The path width can be understood as pre-set path width data, used to delineate the surveying range on both sides of the path centerline. The tower base half-base opening parameter refers to the horizontal distance from the center of the tower base to the center of a single tower leg. In this embodiment, the tower base half-base opening length is used to determine the measurement length of each tower leg direction during tower base cross-section surveying. The target project can be understood as the overhead transmission line engineering project currently being undertaken. Project parameters can be understood as relevant parameters measured or pre-set for the current overhead transmission line engineering project. In this embodiment, the project parameters may include at least the tower base half-base opening parameter and the path width parameter. The tower base number file can be a file used to record the tower number, tower type, and deployment sequence. The Digital Elevation Model (DEM) can be understood as raster data containing surface elevation information, used to extract terrain undulation and elevation data. The Digital Orthophoto Map (DOM) can refer to orthorectified remote sensing image data, which can be used as the base map for line surveying and mapping.

[0021] In this embodiment, the pre-set tower foundation half-base opening parameters and path width parameters of the current overhead transmission line project can be obtained, as well as relevant tower foundation number files, digital elevation models and digital orthophoto maps and other data.

[0022] S120. Determine the path centerline. Based on the path centerline, and in conjunction with the path width parameters and tower base numbering file, determine the channel topographic map range line and tower location data result table in the CAD drawing.

[0023] The path centerline can refer to the central axis of the overhead line design. In this embodiment, the path centerline of the entire line can be determined in the CAD drawing by importing the design route, drawing it manually, or extracting it from existing data. The corridor topographic map boundary line extends outwards from the path centerline to form a strip-shaped boundary. The tower location data result table can be understood as an automatically calculated table of tower location coordinates, cumulative distances, and turning angles. In this embodiment, the tower location data result table can include the east coordinates, north coordinates, elevation data, cumulative distances, and turning angles of each tower location.

[0024] In this embodiment, the path centerline of the entire route can be determined by extracting existing data in the CAD drawing. Then, the corridor topographic map range line can be determined in the CAD drawing based on the path centerline and path width parameters. Finally, the tower location data result table can be determined in the CAD drawing based on the path centerline and tower base number file.

[0025] S130. Based on the channel topographic map range line, tower base half-root opening parameters, and tower location data results table, determine the tower base cross-section and tower location topographic map.

[0026] The tower base cross-sectional view can refer to a topographic profile drawn along the direction of each tower leg. In this embodiment, the tower base cross-sectional view can be used to characterize the topographic undulations and elevation differences at the tower leg locations. The tower site topographic map can be a local planar topographic map centered on a single tower base. In this embodiment, the tower site topographic map can be used to characterize the distribution of terrain and features within a defined range surrounding the tower base; the defined range can be set according to actual needs.

[0027] In this embodiment, information such as the direction of each tower leg, the tower leg cross section, and the tower location topographic data of the tower base cross section can be calculated based on the channel topographic map range line, the tower base half-root opening parameters, and the tower location data result table, and the corresponding tower base cross section and tower location topographic map can be generated.

[0028] In this embodiment, optionally, determining the tower base cross-section and tower location topographic map based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table includes: obtaining the tower base cross-section template and the tower location topographic map template; determining the tower base cross-section data and tower location topographic data based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table; and generating the tower base cross-section and tower location topographic map based on the tower base cross-section data, the tower location topographic data, the tower base cross-section template, and the tower location topographic map template.

[0029] The tower base cross-section template can be a pre-built cross-section template file. For example, in this embodiment, the tower base cross-section template file can be a standardized CAD template file containing elements such as a frame, layers, line types, annotation styles, and tables. The tower location topographic map template can also be a pre-built cross-section template file. For example, in this embodiment, the tower location topographic map template can be a standardized CAD template file containing elements such as a frame, legend, layers, text styles, and coordinate annotations. It is understood that in this embodiment, the tower base cross-section template and the tower location topographic map template can be prepared in advance according to specifications and saved in dwg format. Since different levels of overhead line surveying have different requirements for the measurement range, different tower base cross-section templates and tower location topographic map templates can be determined accordingly. The tower base cross-section data can refer to the topographic profile data of each tower leg direction calculated based on the tower location coordinates, half-root opening parameters, channel range lines, and DEM elevation. In this embodiment, the tower base cross-section data can include data such as the projection distance of measuring points and elevation differences. The tower site terrain data can be obtained from the tower site coordinates, half-base opening, passage range line, DEM, and DOM, which extract the surrounding planar terrain and features of the tower base. In this embodiment, the tower site terrain data may include data such as planar location, relative elevation difference, and feature outline.

[0030] In this embodiment, pre-configured tower base cross-section templates and tower location topographic map templates can be obtained. Using the tower location coordinates and elevation in the tower location data output table as a reference, the extension direction and measurement length of each tower leg are determined according to the tower base half-root opening parameter. Under the constraint of the passage topographic map range line, topographic measurement points within the corresponding range are extracted. The projection distance of the measurement point in the tower leg direction is used as the cross-section X value, and the difference between the measurement point elevation and the tower base center elevation is used as the cross-section Y value, thus obtaining the tower base cross-section data. Furthermore, by using the tower location coordinates in the tower location data output table as the center and determining a square mapping area formed by the tower leg lines according to the tower base half-root opening parameter, within the passage topographic map range line, topographic and feature information within this area and intersecting with the boundary is extracted. The graphic coordinates are translated to the tower base center, rotated to the standard orientation, and the elevation is converted into a relative elevation difference, thus obtaining the tower location topographic data. In this embodiment, the tower base cross-section data can be automatically filled into the corresponding tower base cross-section map template, and the cross-sectional curve, dimensions and elevation can be automatically drawn to generate the tower base cross-section map; the tower site topographic data can be automatically filled into the corresponding tower site topographic map template to automatically generate the tower site topographic map.

[0031] In this embodiment, by using such a setting, the consistency of tower base data and related mapping can be ensured through unified parameter standards and standardized template applications. This avoids problems such as chaotic results and inconsistent standards that occur in traditional manual operations, ensuring the standardization and consistency of the results and improving the standardization and professionalism of the survey and design results.

[0032] In this embodiment, optionally, the tower location data result table includes tower location coordinate data; correspondingly, determining the tower base cross-section data and tower location topographic data based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table includes: taking the tower location coordinate data of each tower base as the center, determining the measurement points of the tower base in the four tower leg directions according to the tower base half-root opening parameter, and obtaining the corresponding measurement point elevation data; using the distance between the projection point of the measurement point in the tower leg direction and the center of the tower base as the first data, and using the difference between the measurement point elevation data and the tower base center elevation data as the second data, determining the tower base cross-section data based on the first data and the second data; determining the tower location mapping range based on each tower base and the corresponding tower leg, and determining the tower location topographic data based on the measurement points within the tower location mapping range and the tower base half-root opening parameter.

[0033] The tower location coordinate data can refer to the planar coordinates of the center of each tower base, which can be used to locate the tower base position. The tower base center elevation data can refer to the elevation value of the center point of the tower base. The four tower leg directions can refer to the four extending directions (up, down, left, and right) based on the tower base center. In this embodiment, the four tower legs can be represented by A, B, C, and D respectively. The measurement points can be terrain points extracted from terrain data. In this embodiment, the measurement points can refer to measurement points selected from each tower leg within a 30cm deviation to the left and right from the tower base center. The measurement point elevation data can refer to the elevation value corresponding to the measurement point. The first data can refer to the distance from the projection of the measurement point in the tower leg direction to the tower base center, i.e., the cross-sectional X-axis value. The second data can refer to the difference between the measurement point elevation and the tower base center elevation, i.e., the cross-sectional Y-axis value. The tower location mapping area can refer to the square area enclosed by the lines connecting the four tower legs, centered on the tower base.

[0034] In this embodiment, the tower position coordinates of each tower base are used as the center, and the extension direction of the four tower legs is determined according to the half-root opening parameter of the tower base. Within the range of the channel topographic map, topographic measuring points within a certain range in the direction of each tower leg are extracted. The projection distance of the measuring point in the direction of the tower leg is used as the X-axis value of the cross section, and the difference between the elevation data of the measuring point and the center of the tower base is used as the Y-axis value to obtain the cross section data of each tower leg. Thus, the corresponding tower base cross section map can be generated based on the cross section data of the tower legs.

[0035] Specifically, in this embodiment, the method for calculating the tower leg direction in the tower base cross-section diagram can be as follows: for straight towers, the angle is calculated by superimposing N×90° at 45°, where N is 0, 1, 2, or 3 respectively; for corner towers, the angle is calculated by adding half the corner angle to the straight tower angle, following the principle of "left subtraction, right addition". The method for calculating the tower leg cross-section can be as follows: for each tower leg, from the center of the tower base outwards, select measuring points within a 30cm range on the left and right sides for calculation; the distance between the projection point of the measuring point in the tower leg direction and the center of the tower base is used as the X-axis value of the tower leg cross-section. The cross-sections of legs A and D are drawn in the negative X-axis direction, and the cross-sections of legs B and C are drawn in the positive X-axis direction. The difference between the elevation of the measuring point and the elevation of the tower base center is used as the Y-axis value of the tower leg cross-section.

[0036] In this embodiment, the tower location coordinates are used as the center, and the tower leg positions are determined according to the half-root opening parameters of the tower base. The square area formed by the lines connecting the tower legs is defined as the tower location mapping range of the tower location topographic map. Under the constraint of the channel topographic map range line, the topographic and feature data within the tower location mapping range and those intersecting with the range are extracted. The graphic is then processed by coordinate translation and rotation with the tower base center as the reference, and the elevation points within the range are converted into elevation differences relative to the tower base center, thereby obtaining the corresponding tower location topographic data and generating the tower location topographic map.

[0037] Specifically, in this embodiment, the method for determining the tower location topographic map is to take the square formed by connecting the tower bases and legs as the output range of the tower location topographic map, and then select the existing features within this range and those intersecting with the range, and perform a translation operation, that is, translate the center of the tower base to the origin of the coordinate system, and a rotation operation, that is, rotate the tower base to the positive X-axis direction, and then save it as a tower location topographic map. At the same time, the elevation of all elevation points in the tower location topographic map is adjusted to the elevation difference with the center elevation of the tower base.

[0038] In this embodiment, by setting up such a system, the corresponding tower base cross-section data and tower location topographic data can be determined based on the unified coordinate data and elevation information in the tower location data results table. This enables batch automated processing operations and significantly improves the surveying and mapping efficiency of long-length and multi-tower lines.

[0039] S140. Generate a path profile based on digital orthophoto maps, digital elevation models, and preset left and right cross-sectional ranges.

[0040] The preset left and right cross-sectional ranges refer to the pre-defined range requirements for the left and right cross-sections. In this embodiment, the required width of the terrain profiles on both sides of the line centerline can be determined based on the preset left and right cross-sectional ranges.

[0041] In this embodiment, the topographic elevation profile data along the route within the preset left and right cross-sectional range is extracted from the digital elevation model based on the centerline of the path. At the same time, the distribution information of ground features within the path range is extracted using a digital orthophoto map as the base map. Then, the topographic elevation profile and ground feature information are matched and integrated to generate the corresponding path plan profile map.

[0042] Furthermore, in this embodiment, in addition to importing conventional discrete point data and loading DOM imagery, it can also read DEM elevation models and combine imagery to densify measurement points on-site. If the DEM model is found to have insufficient accuracy in certain areas, it can be corrected. Specifically, in this embodiment, RTK measurement discrete point data can be imported, and DOM imagery can be loaded as a drawing base; point cloud data can be imported, and the "Measurement Point" function can be used to directly add measurement points at the locations where they need to be added, while simultaneously displaying the elevation of those points; "Load DEM" uses rectangles to mark the DEM area on the map, and the "Measurement Point" function can be used to directly add measurement points at the locations where they need to be added, while simultaneously displaying the elevation of those points; and the local model accuracy of the DEM model can be corrected using RTK-measured elevation points.

[0043] The technical solution of this invention involves acquiring project parameters, tower base number files, digital elevation models, and digital orthophoto maps of the target project. The project parameters include at least tower base half-width parameters and path width parameters. The path centerline is determined, and based on the path centerline, combined with the path width parameters and tower base number files, the corridor topographic map boundary line and tower location data result table are determined in the CAD drawing. Based on the corridor topographic map boundary line, tower base half-width parameters, and tower location data result table, tower base cross-section diagrams and tower location topographic maps are determined. Based on the digital orthophoto map, digital elevation model, and preset left and right cross-section ranges, a path horizontal cross-section diagram is generated. This technical solution, through CAD secondary development processing operations, achieves automated generation of overhead line survey results such as tower base cross-sections, tower location topography, and path horizontal cross-sections, improving the efficiency and quality of overhead line surveying and mapping.

[0044] Example 2 Figure 2 This is a flowchart of an intelligent mapping method for overhead power line surveying based on CAD, according to Embodiment 2 of the present invention. This embodiment is an optimization based on the above embodiment. Specifically, the optimization involves determining the corridor topographic map boundary line and the tower location data result table in the CAD drawing based on the path centerline, combined with path width parameters and tower base number files. This includes: determining the corridor topographic map boundary line in the CAD drawing according to the path centerline and path width parameters; and generating the tower location data result table in the CAD drawing according to the path centerline and tower base number files. Figure 2 As shown, the method includes: S210. Obtain the project parameters, tower base number file, digital elevation model, and digital orthophoto map of the target project.

[0045] Among them, the project parameters include at least the tower base half-root opening parameter and the path width parameter.

[0046] S220. Determine the path centerline. Based on the path centerline and path width parameters, determine the boundary line of the topographic map of the passage in the CAD drawing.

[0047] In this embodiment, after determining the path centerline on the current CAD drawing, the determined path centerline is used as a reference, and offset processing is performed according to the path width parameter to determine the corresponding channel topographic map range line.

[0048] In this embodiment, optionally, determining the channel topographic map range line on the CAD drawing based on the path centerline and path width parameters includes: shifting the path centerline to both sides according to the path width parameters to form the channel topographic map range line on the CAD drawing.

[0049] In this embodiment, the path centerline is used as a reference, and the path width parameter is offset to the left and right sides of the centerline to automatically generate a strip-shaped channel topographic map range line in the CAD drawing, which can be used as the boundary range for tower location, terrain and ground feature extraction.

[0050] For example, an example diagram of the channel topographic map range line in this embodiment is shown below. Figure 3 As shown. In this embodiment, the path centerline is offset to the left and right according to the set path width value to form the channel topographic map range line. The concave corner is offset outward to form a blind zone, and the boundary of this blind zone can also be drawn simultaneously. It is understandable that there are terrain and feature blind zones in the conversion from CAD top view to path plan and profile view. In this embodiment, the corresponding conversion blind zones can be automatically drawn simultaneously.

[0051] In this embodiment, by setting it up in this way, a standardized and uniform channel boundary can be automatically generated based on the path centerline and path width parameters, replacing traditional manual drawing, greatly improving mapping efficiency and reducing human error.

[0052] S230. Based on the path centerline and tower base number file, generate a tower location data result table in the CAD drawing.

[0053] In this embodiment, the coordinates and elevation data of each tower location can be automatically read or matched in the CAD drawing based on the tower location order in the path centerline and tower base number file, and the corresponding cumulative distance and turning angle data can be calculated in sequence to obtain the tower location data result table.

[0054] In this embodiment, optionally, a tower location data result table is generated in the CAD drawing based on the path centerline and tower base number file, including: reading the coordinate data of each tower location from the CAD drawing, taking the first tower location on the path centerline as the starting reference point, determining the cumulative distance and tower location turning angle of each tower location; integrating the coordinate data, cumulative distance and tower location turning angle of each tower location to obtain the tower location data result table.

[0055] The coordinate data can refer to the planar coordinates and elevation data of each tower location in the CAD drawing. The cumulative distance refers to the total distance from the starting reference point along the path centerline to the current tower location. In this embodiment, the centerline length between every two adjacent tower locations can be calculated sequentially from the starting reference point along the path centerline and accumulated to obtain the cumulative distance for each tower location. The tower location turning angle can be the line turning angle formed between the current tower location and the previous and next tower locations. In this embodiment, the tower location turning angle can be used to characterize a left or right turn. The integration processing can include summarization and sorting operations.

[0056] In this embodiment, the graphic positions of each tower location can be automatically identified and read from the CAD drawing, and the east, north, and elevation data of each tower location can be obtained. Then, the first tower location on the path centerline is used as the starting reference point for cumulative distance calculation. The cumulative distance to each subsequent tower location along the path centerline is calculated, and the tower location angle formed by connecting the tower location with the two tower locations before and after it is obtained through geometric calculation. In this embodiment, the left turn of the tower location angle can be represented by a "+" sign, and the right turn can be represented by a "-" sign. By summarizing, sorting, and formatting the tower number, coordinate data, elevation, cumulative distance, and tower location angle of each tower location, a tower location data result table is automatically generated.

[0057] In this embodiment, the cumulative distance and angle results table of tower location coordinates can be automatically calculated and generated through such settings, which facilitates the subsequent batch generation of tower base cross-sectional diagrams and tower location topographic maps, greatly improving the accuracy of the data.

[0058] S240. Based on the channel topographic map range line, tower base half-root opening parameters, and tower location data results table, determine the tower base cross-section and tower location topographic map.

[0059] S250, based on digital orthophoto maps, digital elevation models, and preset left and right cross-sectional ranges, generates path profile maps.

[0060] In this embodiment, optionally, generating a path plan profile based on a digital orthophoto map, a digital elevation model, and a preset left and right cross-sectional range includes: using the digital orthophoto map as a base map and combining it with path elements contained in the path element library to obtain a path topographic map; and generating a path plan profile based on the path topographic map and combining it with the digital elevation model and the preset left and right cross-sectional range.

[0061] The path element library can be a pre-established topographic map element library. In this embodiment, the path element library can include elements such as crossings, point features, linear features, area features, and wind deflection sag. For example, crossings can include overhead power lines and communication lines of various grades, ground-level pipelines, and underground cable ducts; point features can include isolated trees, microwave towers, empty poles, and other hazardous points; linear features can include embankments, roads, rivers, and land boundary lines; area features can include residential buildings and vegetation boundaries; and wind deflection sag can be used for identifying and drawing wind deflection sections in the cross-section of a path in mountainous areas, and drawing sag points and lines of existing overhead power lines. The path topographic map can be a plan view of the path formed by overlaying the path centerline, route corridor, and features onto a digital orthophoto map as the base map. The path cross-section map can be a comprehensive graphic that includes the path's planar orientation, feature distribution, and elevation variations along the route.

[0062] In this embodiment, a digital orthophoto map can be loaded onto a CAD drawing as a base map. Then, path elements from the path element library are called to overlay and draw path centerlines, path range lines, labels, legends, and other content on the base map. The base map and path elements are then integrated to form a complete path topographic map. Using the path centerline in the path topographic map as a reference, the profile data acquisition zone is determined according to the preset left and right cross-sectional ranges. The elevation information within the acquisition zone is extracted from the digital elevation model (DEM) to generate a topographic longitudinal profile curve along the path centerline. The path plan information and longitudinal profile elevation information are combined to automatically generate a path plan profile map.

[0063] In this embodiment, the elements involving legends in the topographic map can be pre-drawn using CAD and saved as blocks, then saved as a .dwg file. During the initial drawing, the .dwg file containing all legends is loaded into the CAD database. When drawing a specific topographic feature, the required blocks can be automatically found by traversing the CAD database block table and applied to the drawing process.

[0064] In this embodiment, within the path map area formed by the path centerline and bandwidth, the corresponding path topographic map is drawn using the various terrain elements contained in the path element library. Specifically, the path element library in this embodiment may include: (1) Crossing elements include overhead power lines and communication lines of various levels, ground pipelines, underground cable pipelines, etc. For overhead crossings, when drawing, select measurement points on both sides of the path centerline, or draw the crossing straight line by referring to the DOM image, and then input the height of the crossing point. The map will automatically mark the power line level and crossing height at the crossing point. Underground crossings include underground power cables, underground communication cables, underground water pipes, underground optical cables, underground oil pipes, and underground natural gas pipes. When drawing, select measurement points on both sides of the path centerline. The map will automatically mark the name of the crossing object at the crossing point. For ground pipeline crossings, select measurement points on both sides of the path centerline. The map will automatically mark the name of the crossing object at the crossing point. (2) Point features are divided into two categories according to whether they have elevation attributes. For example, isolated trees, isolated rocks, utility poles, streetlights, iron towers, water towers, microwave towers, chimneys, bamboo, etc. When drawing, select the measurement point of the isolated feature, input the height of the isolated feature, and mark it in the corresponding position on the map with the corresponding design block and display the height of the isolated feature. Wells do not have elevation attributes, so they are drawn directly and marked in the corresponding position on the map with the corresponding design block. (3) Linear features include embankments, roads, rivers, and land boundaries. When drawing, select the measurement points of their edges in sequence, and use polylines to represent the connection relationship between the measurement points of their edges. (4) Area features include residential buildings and vegetation boundaries. For brick houses with flat roofs, brick houses with pointed roofs, concrete houses with flat roofs, and concrete houses with pointed roofs, select the measurement points of the four corner points of the house in sequence, and project these four points onto the center line of the path. The two farthest points are designated as the first and third points to be drawn. After selecting the fourth point, close the drawing by pressing "C" to form a surface, and then input the house height. For sheds and houses within buildings, there is no specific order requirement for drawing; simply close the drawing to form a surface. When drawing vegetation boundaries, select the measurement points of its edges in sequence, or select the edges in sequence by referring to the DOM image, and finally close the drawing by pressing "C". The drawing uses polylines to represent the connection relationship between the measurement points of the edges, and labels the corresponding Chinese abbreviations in the middle. (5) When drawing wind deflection section elements, click the wind deflection measurement points sequentially from the center line of the path to the side where the wind deflection is located, according to the on-site measurement points, to form the wind deflection section line; or first read the DEM elevation model, and filter out all possible wind deflection areas along the path by searching for wind deflection points, and then draw the wind deflection section line according to the above method in combination with the on-site conditions and DOM images. (6) Sag line elements are divided into sag points and sag lines.For single sag points, after selecting the corresponding measuring point on the map and entering the elevation, the location of the measuring point will be automatically labeled with a legend and elevation value. For batch sag points, import pre-prepared 3D measurement coordinates of sag points, which can be obtained from on-site total station measurements or collected from the point cloud model through "measuring points". The map will automatically label the map with legends and elevation values ​​in batches. For these batch-imported sag points, you can manually connect them sequentially to draw sag lines, or the sag lines can be automatically generated. If you think a point is incorrect and needs to be deleted, you can directly delete the sag line node.

[0065] In this embodiment, after checking the drawing for omissions, the path profile is output with one click. Specifically, it includes: (1) Point data conversion: taking the starting point of the path centerline as the origin and the path direction as the axis direction, the measurement points are converted from the three-dimensional coordinates (x, y, h) referenced in the CAD drawing to the coordinates (offset p, cumulative distance l, elevation h) in the software file. Offset p is the vertical distance from the point to the path centerline, cumulative distance l is the path length of the projection of the point on the path centerline from the origin, and the elevation remains unchanged. The data format of the pile position is: 0, pile name, offset, cumulative distance, elevation Z, point code, note the turning angle, measured left angle, with elevation, note; the data format of ordinary points is: b, point number, offset, cumulative distance, elevation z, point code, connection point, line type, connection code, with elevation, note. (2) Line data conversion: Connect the converted points into lines using the "c" command, and assign different attributes to the lines to obtain different categories of linear features, such as 34 - crossing 110kV power lines, 915 - unreinforced steep slope, 931 - wall, etc. The data format of the connection is: c, connection point number, connection point, line type, connection code. (3) Area data conversion: Connect the end points of the line data, and assign different attributes to the lines to obtain different categories of area features. For example: 201 - house, 807 - nursery, 319 - tower-shaped building, etc. After connecting the end points of the line data, a closed area data is formed. (4) Attribute data conversion: By calling the CAD feature database, read its attribute data, and write it into the data database corresponding to the plan and profile features in the form of codes, thereby generating a full path plan and profile map in org format.

[0066] In addition, the overhead line rerouting survey and mapping process in this embodiment can be as follows: (1) In the CAD file, update the path centerline and the tower base number file at the same time; (2) Input the path width value and the half-length of the tower base. Select the path centerline on the map, specify the tower number file according to the prompt, automatically draw the channel topographic map range line and automatically calculate and generate the tower position coordinate cumulative distance and angle result table; (3) After importing the measurement data, select different tower base cross section map templates and tower position topographic map templates, and automatically generate tower base cross section maps and tower position topographic maps in batches; (4) Within the channel topographic map range line, draw the topographic features and cross-sections, wind deflection sections and other information within the relevant range after the rerouting, and then output the rerouting path plan and cross section map with one click.

[0067] This embodiment integrates multiple data formats, including DOM, discrete points, DEM, and point clouds. DOM orthophotos are directly imported into the system and used as base maps, improving the accuracy of terrain and feature identification during mapping. Total stations and RTKs can be used for on-site measurement of important terrain and feature points, generating discrete points in coordinate and elevation formats. However, for terrain and feature points that cannot be measured manually, point clouds or DEM ground elevation models obtained from LiDAR measurements can be imported into the system, and measurements can be taken simultaneously during mapping using a "point measurement" method. The integrated use of multiple data formats, such as DOM, discrete points, DEM, and point clouds, significantly improves the efficiency of overhead line surveying and mapping, maximizes the role of advanced surveying equipment, and enhances the quality of mapping results and the efficiency of advanced equipment utilization through the fusion of multi-source data.

[0068] This embodiment addresses existing CAD secondary development processing operations. It enables the automatic calculation of overhead power line tower pile distances and longitudinal sections, and the conversion of CAD topographic maps into plan views. During the mapping process, the path centerline is used as the core, and the path bandwidth is set to automatically calculate the path range line and tower base coordinate angles. After importing measurement data, by setting the half-length, tower base cross-sections and tower location topographic maps can be directly output in batches. Based on the designed topographic and feature element library, a path channel topographic map is drawn, which can be directly converted into a plan view, achieving the generation of two sets of results in different formats in a single drawing. Furthermore, for overhead power line rerouting operations, the path centerline of the rerouting section can be directly modified, rerouting measurement data imported, and three sets of results related to the tower base generated in batches. Then, a topographic map of the rerouting section is drawn, and a plan view is converted with one click, avoiding the cutting and splicing steps in traditional plan view drawing processes. This makes all operations clear and intuitive; rerouting only requires modifying the path centerline in CAD, greatly improving data accuracy and the reliability of results.

[0069] The technical solution of this invention involves acquiring project parameters, tower base number files, digital elevation models, and digital orthophoto maps of the target project. The project parameters include at least tower base half-width parameters and path width parameters. The path centerline is determined, and based on the path centerline and path width parameters, the corridor topographic map boundary line is determined in the CAD drawing. Based on the path centerline and tower base number files, a tower location data result table is generated in the CAD drawing. Based on the corridor topographic map boundary line, tower base half-width parameters, and the tower location data result table, tower base cross-sections and tower location topographic maps are determined. Based on the digital orthophoto map, digital elevation model, and preset left and right cross-section ranges, a path horizontal cross-section is generated. This technical solution, through CAD secondary development processing operations, achieves automated generation of overhead line survey results such as tower base cross-sections, tower location topography, and path horizontal cross-sections, improving the efficiency and quality of overhead line surveying and mapping.

[0070] Example 3 Figure 4 This is a structural schematic diagram of an intelligent mapping device for overhead line surveying based on CAD, provided in Embodiment 3 of the present invention. Figure 4 As shown, the device includes: The data acquisition module 410 is used to acquire the project parameters, digital elevation model, and digital orthophoto map of the target project. Among them, the project parameters include at least the tower base half-base opening parameter, path width parameter, and path centerline.

[0071] The tower location data determination module 420 is used to obtain the tower base number file, and based on the path centerline, combined with the path width parameter and the tower base number file, determine the channel topographic map range line and the tower location data result table in the CAD drawing.

[0072] The tower base graphic determination module 430 is used to determine the tower base cross-section and tower location topographic map based on the channel topographic map range line, tower base half-root opening parameters, and tower location data result table.

[0073] The path graphic generation module 440 is used to generate path plan and cross-section diagrams based on digital orthophoto maps, digital elevation models, and preset left and right cross-section ranges.

[0074] Optionally, the tower location data determination module 420 includes: The boundary line determination unit is used to determine the boundary line of the corridor topographic map in the CAD drawing based on the path centerline and path width parameters; The tower location data result table generation unit is used to generate a tower location data result table in the CAD drawing based on the path centerline and tower base number file.

[0075] Optionally, the boundary line determination unit is specifically used to: offset the path centerline to both sides according to the path width parameter, and form the boundary line of the channel topographic map in the CAD drawing.

[0076] Optionally, the tower location data result table generation unit is specifically used to: read the coordinate data of each tower location from the CAD drawing, take the first tower location on the path centerline as the starting reference point, determine the cumulative distance and tower location turning angle of each tower location; integrate and process the coordinate data, cumulative distance and tower location turning angle of each tower location to obtain the tower location data result table.

[0077] Optionally, the base graphic determination module 430 includes: The template acquisition unit is used to acquire the tower base cross-section diagram template and the tower location topographic map template; The data determination unit is used to determine the cross-sectional data of the tower base and the topographic data of the tower location based on the channel topographic map range line, the half-base opening parameter of the tower base, and the tower location data result table. The graphics generation unit is used to generate tower base cross-section data and tower site topographic maps based on tower base cross-section data, tower site topographic data, tower base cross-section map templates, and tower site topographic map templates.

[0078] Optionally, the tower location data output table includes tower location coordinate data; correspondingly, the data determination unit is specifically used for: taking the tower location coordinate data of each tower base as the center, determining the measurement points of the tower base in the four tower leg directions according to the half-base opening parameter of the tower base, and obtaining the corresponding measurement point elevation data; taking the distance between the projection point of the measurement point in the tower leg direction and the center of the tower base as the first data, taking the difference between the measurement point elevation data and the tower base center elevation data as the second data, determining the tower base cross-section data according to the first data and the second data; determining the tower location mapping range based on each tower base and the corresponding tower leg, and determining the tower location terrain data based on the measurement points within the tower location mapping range and the half-base opening parameter of the tower base.

[0079] Optionally, the path graph generation module 440 is specifically used for: A path topographic map is obtained by using digital orthophotos as a base map and combining path elements contained in the path element library. Based on the route topographic map, combined with the digital elevation model and the preset left and right cross-sectional ranges, a route horizontal cross-section map is generated.

[0080] The CAD-based intelligent mapping device for overhead line surveying provided in this embodiment of the invention can execute the CAD-based intelligent mapping method for overhead line surveying provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0081] Example 4 Figure 5This is a schematic diagram of an electronic device according to Embodiment 4 of the present invention. 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 (such as 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.

[0082] like Figure 5 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 can 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.

[0083] 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.

[0084] 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, central processing unit (CPU), graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as a CAD-based intelligent mapping method for overhead line surveying.

[0085] In some embodiments, the CAD-based intelligent mapping method for overhead line surveying 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 CAD-based intelligent mapping method for overhead line surveying described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the CAD-based intelligent mapping method for overhead line surveying by any other suitable means (e.g., by means of firmware).

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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).

[0090] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or 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.

[0091] 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.

[0092] 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.

[0093] 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 CAD-based intelligent mapping method for overhead line surveying, characterized in that, include: Obtain the project parameters, tower base numbering file, digital elevation model, and digital orthophoto map of the target project; wherein, the project parameters include at least the tower base half-base opening parameter and the path width parameter; Determine the path centerline, and based on the path centerline, combine the path width parameter and the tower base number file to determine the channel topographic map range line and tower location data result table in the CAD drawing respectively; Based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table, determine the tower base cross-section diagram and the tower location topographic map; A path plan view is generated based on the digital orthophoto map, the digital elevation model, and the preset left and right cross-sectional ranges.

2. The method according to claim 1, characterized in that, Based on the path centerline, and in conjunction with the path width parameters and the tower base numbering file, the channel topographic map boundary line and tower location data output table are determined in the CAD drawing, including: Based on the path centerline and the path width parameter, determine the corridor topographic map range line in the CAD drawing; Based on the path centerline and the tower base number file, a tower location data result table is generated in the CAD drawing.

3. The method according to claim 2, characterized in that, Based on the path centerline and the path width parameter, the corridor topographic map boundary line is determined in the CAD drawing, including: Based on the path width parameter, the path centerline is shifted to both sides to form the channel topographic map range line in the CAD drawing.

4. The method according to claim 2, characterized in that, Based on the path centerline and the tower base number file, a tower location data result table is generated in the CAD drawing, including: Read the coordinate data of each tower location from the CAD drawing. Using the first tower on the path centerline as the starting reference point, determine the cumulative distance and tower angle for each tower. The coordinate data, cumulative distance, and tower rotation angle of each tower location are integrated and processed to obtain a tower location data result table.

5. The method according to claim 1, characterized in that, Based on the channel topographic map range line, the tower base half-root opening parameters, and the tower location data result table, the tower base cross-section diagram and tower location topographic map are determined, including: Obtain the templates for the tower base cross-section and the tower location topographic map; Based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table, determine the tower base cross-section data and the tower location topographic data; The tower base cross-section data, the tower site topographic data, the tower base cross-section template, and the tower site topographic map template are used to generate the tower base cross-section map and the tower site topographic map.

6. The method according to claim 5, characterized in that, The tower location data output table includes tower location coordinate data; Accordingly, based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table, the tower base cross-section data and tower location topographic data are determined, including: Using the tower position coordinates of each tower base as the center, the measurement points of the tower base in the four tower leg directions are determined according to the half-root opening parameters of the tower base, and the corresponding measurement point elevation data are obtained. The distance between the projection point of the measurement point in the direction of the tower leg and the center of the tower base is used as the first data, and the difference between the elevation data of the measurement point and the elevation data of the center of the tower base is used as the second data. The cross-sectional data of the tower base is determined based on the first data and the second data. The surveying range of the tower location is determined based on each tower base and its corresponding tower leg, and the topographic data of the tower location is determined based on the measurement points within the surveying range and the half-root opening parameters of the tower base.

7. The method according to claim 1, characterized in that, Based on the digital orthophoto map, the digital elevation model, and the preset left and right cross-sectional ranges, a path plan and cross-sectional map is generated, including: Based on the digital orthophoto map as the base map, and combined with the path elements contained in the path element library, a path topographic map is obtained. Based on the topographic map of the route, a horizontal cross-section map of the route is generated by combining the digital elevation model and the preset left and right cross-section ranges.

8. A CAD-based intelligent mapping device for overhead line surveying, characterized in that, include: The data acquisition module is used to acquire the project parameters, digital elevation model, and digital orthophoto map of the target project; wherein, the project parameters include at least the tower base half-base opening parameter, the path width parameter, and the path centerline; The tower location data determination module is used to obtain the tower base number file, and based on the path centerline, combined with the path width parameter and the tower base number file, determine the channel topographic map range line and the tower location data result table in the CAD drawing respectively; The tower base graphic determination module is used to determine the tower base cross-section and tower location topographic map based on the channel topographic map range line, the tower base half-root opening parameter, and the tower location data result table. The path graphic generation module is used to generate a path plan view based on the digital orthophoto map, the digital elevation model, and the preset left and right cross-sectional ranges.

9. 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 CAD-based intelligent mapping method for overhead line surveying as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the CAD-based intelligent mapping method for overhead line surveying as described in any one of claims 1-7.

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