Satellite image-based power grid planning auxiliary guidance method

Abstract

The application discloses a satellite image-based power grid planning auxiliary guidance method, and relates to the technical field of power grid planning, which comprises the following steps: collecting high-resolution satellite image data of a region to be planned, and extracting geographical information of the region to be planned from the high-resolution satellite image data; determining a transformer substation site based on the geographical information, and constructing a three-dimensional terrain model of the region to be planned, marking the power grid line direction on the three-dimensional terrain model, and generating line section data; establishing a power grid geographic information system, importing the three-dimensional terrain model and the line section data into the power grid geographic information system, collecting multi-temporal satellite remote sensing data through the power grid geographic information system, and performing surface deformation monitoring according to the multi-temporal satellite remote sensing data. The application realizes digital management of the whole process from power grid planning to operation and maintenance by constructing a power grid planning and monitoring method based on high-resolution satellite image data, and solves the problems of low efficiency and limited coverage range in traditional manual planning and monitoring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid planning, in particular to a power grid planning auxiliary guidance method based on satellite images. BACKGROUND

[0002] Power transmission project route selection and site selection is an important link of power grid planning, which directly affects the structure, investment and economic efficiency and reliability of the operation of the planned regional power grid. Power grid planning is an engineering system with large scale, multiple involved fields and many uncertain factors. With the rapid development of power grid construction, the power grid structure is becoming more and more complex, and the traditional planning operation mode cannot meet the requirements of modern power grid construction. Therefore, the power grid planning auxiliary guidance method based on satellite images emerges as the times require, which is an innovative means combining modern remote sensing technology and power grid planning requirements, thereby providing scientific, accurate and efficient auxiliary support for power grid planning.

[0003] The traditional power grid planning mainly relies on manual experience and field reconnaissance for judgment, which is time-consuming and labor-intensive. Most planning personnel lack systematic optimization concepts. The traditional power grid planning auxiliary guidance method does not consider various factors such as geography, resulting in rough power grid planning results. SUMMARY

[0004] In view of the above problems, the present application is proposed.

[0005] Therefore, the present application provides a power grid planning auxiliary guidance method based on satellite images, which can solve the problems mentioned in the background art.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a power grid planning auxiliary guidance method based on satellite images, comprising: collecting high-resolution satellite image data of a region to be planned, extracting geographical information of the region to be planned from the high-resolution satellite image data; determining a substation site based on the geographical information, and constructing a three-dimensional terrain model of the region to be planned, marking the power grid line direction on the three-dimensional terrain model, and generating line section data; establishing a power grid geographic information system, importing the three-dimensional terrain model and the line section data into the power grid geographic information system, collecting multi-temporal satellite remote sensing data through the power grid geographic information system, and performing ground surface deformation monitoring according to the multi-temporal satellite remote sensing data.

[0007] As a preferred scheme of the power grid planning auxiliary guidance method based on satellite images, the geographical information includes topographic and geomorphic information, geological structure information, vegetation cover information, and water system distribution information.

[0008] As a preferred scheme of the satellite image-based power grid planning auxiliary guidance method, the high-resolution satellite image data of the region to be planned is collected, and geographical information of the region to be planned is extracted from the high-resolution satellite image data, including the following steps: analyzing engineering geological conditions based on the high-resolution satellite image data, identifying obstacle positions, and obtaining a preliminary scheme of line orientation; screening substation sites according to the preliminary scheme of line orientation, and determining substation site positions based on local planning information, incoming road positions, and outgoing line corridor information; and combining the preliminary scheme of line orientation and the substation site positions to generate the geographical information.

[0009] As a preferred scheme of the satellite image-based power grid planning auxiliary guidance method, the high-resolution satellite image data of the region to be planned is collected, and geographical information of the region to be planned is extracted from the high-resolution satellite image data, including the following steps: analyzing engineering geological conditions based on the high-resolution satellite image data, identifying obstacle positions, and obtaining a preliminary scheme of line orientation; screening substation sites according to the preliminary scheme of line orientation, and determining substation site positions based on local planning information, incoming road positions, and outgoing line corridor information; and combining the preliminary scheme of line orientation and the substation site positions to generate the geographical information.

[0010] As a preferred scheme of the satellite image-based power grid planning auxiliary guidance method, the high-resolution satellite image data of the region to be planned is collected, and geographical information of the region to be planned is extracted from the high-resolution satellite image data, including the following steps: analyzing engineering geological conditions based on the high-resolution satellite image data, identifying obstacle positions, and obtaining a preliminary scheme of line orientation; screening substation sites according to the preliminary scheme of line orientation, and determining substation site positions based on local planning information, incoming road positions, and outgoing line corridor information; and combining the preliminary scheme of line orientation and the substation site positions to generate the geographical information.

[0011] As a preferred scheme of the satellite image-based power grid planning auxiliary guidance method, the three-dimensional terrain model data and the line section data are imported into the power grid geographic information system, including: generating base map data based on the high-resolution satellite image data; performing spatial overlay processing on power facility vector data and the base map data to generate power grid facility distribution data; importing three-dimensional terrain model data, the line section data and the power grid facility distribution data into the power grid geographic information system; the ground surface deformation data includes ground surface subsidence data, ground displacement data, slope body deformation data and geological disaster development data; the monitoring and early warning data includes tower foundation stability evaluation data, geological risk level data and deformation trend data.

[0012] As a preferred scheme of the satellite image-based power grid planning auxiliary guidance method, the three-dimensional terrain model data and the line section data are imported into the power grid geographic information system, including: generating base map data based on the high-resolution satellite image data; performing spatial overlay processing on power facility vector data and the base map data to generate power grid facility distribution data; importing three-dimensional terrain model data, the line section data and the power grid facility distribution data into the power grid geographic information system; the ground surface deformation data includes ground surface subsidence data, ground displacement data, slope body deformation data and geological disaster development data; the monitoring and early warning data includes tower foundation stability evaluation data, geological risk level data and deformation trend data.

[0013] To further solve the above technical problems, the present application provides the following technical scheme: a satellite image-based power grid planning auxiliary guidance system, comprising: a collection module for collecting high-resolution satellite image data of a region to be planned and extracting geographical information of the region to be planned from the high-resolution satellite image data; a model construction module for determining a substation site based on the geographical information and constructing a three-dimensional terrain model of the region to be planned, labeling power grid line directions on the three-dimensional terrain model and generating line section data; and a monitoring module for establishing a power grid geographic information system, importing the three-dimensional terrain model and the line section data into the power grid geographic information system, collecting multi-temporal satellite remote sensing data through the power grid geographic information system and performing ground surface deformation monitoring according to the multi-temporal satellite remote sensing data.

[0014] A computer device includes a memory and a processor, the memory stores a computer program, characterized in that the processor executes the computer program to realize the steps of the satellite image-based power grid planning auxiliary guidance method.

[0015] A computer readable storage medium, having stored thereon a computer program, wherein the computer program is executed by a processor to implement the steps of the satellite image-based power grid planning auxiliary guidance method.

[0016] The present application has the following beneficial effects: The present application solves the main problems existing in traditional power grid planning and monitoring by constructing a complete data processing and analysis system. In the power grid planning stage, through systematic processing of high-resolution satellite image data, an automatic extraction mechanism of terrain parameters and geological disasters is established, which changes the traditional planning mode relying on manual experience into a data-driven scientific decision-making process, significantly improving the planning efficiency and reducing the construction change rate. Through the construction of a three-dimensional model for stereoscopic visualization analysis, the planner can intuitively understand the spatial relationship between the terrain and the power grid facilities, effectively avoiding the potential problems that cannot be identified in traditional two-dimensional drawings. In the engineering construction and operation stage, by establishing a power grid geographic information system and combining multi-temporal satellite remote sensing technology, comprehensive monitoring of power grid facilities is realized, improving the data management efficiency and enhancing the geological disaster warning capability. The technical scheme of the present application is especially suitable for areas with complex terrain and limited construction conditions, providing technical support for the whole process of power grid engineering planning, construction and safe operation, and has significant engineering application value. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The overall flowchart of the satellite image-based power grid planning auxiliary guidance method proposed by the present application is shown in the figure.

[0019] Figure 2 The computer device diagram in the satellite image-based power grid planning auxiliary guidance method proposed by the present application is shown in the figure. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0021] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0022] Embodiment 1, refer to Figure 1 For an embodiment of the present application, a satellite image-based power grid planning auxiliary guidance method is provided.

[0023] The present application provides a satellite image-based power grid planning auxiliary guidance method which can effectively solve the above-mentioned problems. Next, how to realize the satellite image-based power grid planning auxiliary guidance method will be described in detail in combination with multiple embodiments.

[0024] Figure 1 The overall flowchart of the satellite image-based power grid planning auxiliary guidance method is shown, which includes:

[0025] S1: Collect high-resolution satellite image data of the region to be planned, and extract geographical information of the region to be planned from the high-resolution satellite image data.

[0026] Specifically, the geographical information includes topographic and geomorphic information, geological structure information, vegetation coverage information, and water system distribution information.

[0027] S1.1: Analyze the engineering geological conditions based on the high-resolution satellite image data, identify the positions of obstacles, and obtain a preliminary scheme of line orientation.

[0028] Specifically, terrain relief data, geological structure data, soil and rock data, and hydrogeological data are extracted from the high-resolution satellite image data; artificial building data, vegetation distribution data, and water system distribution data are identified from the high-resolution satellite image data; based on the preset engineering construction standard, the influence range data corresponding to the artificial building data, the vegetation distribution data, and the water system distribution data are calculated; and according to the terrain relief data, the geological structure data, the soil and rock data, the hydrogeological data, and the influence range data, the preliminary scheme of line orientation is generated through a preset spatial analysis model.

[0029] S1.2: According to the preliminary scheme of line orientation, the substation site is screened, and the substation site position is determined based on the local planning information, the incoming road position, and the outgoing line corridor information.

[0030] Specifically, the substation site is screened according to the preliminary scheme of the line route, the substation site position is determined based on local planning information, the position of the incoming road and the line corridor information, and specifically includes: collecting slope data, stability data and land use type data in the substation site screening area; according to the preset substation construction specification, the slope data, the stability data and the land use type data are scored for suitability to generate site score data; obtain the planning control line data, the traffic network data and the electric power channel data of the screening area; the site score data is analyzed by spatial superposition, and the planning control line data, the traffic network data and the electric power channel data are taken as constraint conditions to generate a site candidate scheme; the site candidate scheme is comprehensively evaluated according to the preset evaluation index system to determine the substation site position.

[0031] S1.3: Combine the preliminary scheme of the line route and the substation site position to generate geographic information.

[0032] Specifically, the preliminary scheme of the line route and the substation site position are combined to generate geographic information, specifically including: constructing a unified geographic coordinate reference system; converting the spatial data in the preliminary scheme of the line route to the geographic coordinate reference system; converting the spatial data of the substation site position to the geographic coordinate reference system; establishing an attribute database of the preliminary scheme of the line route, the attribute database including geographic parameters, engineering parameters and environmental parameters; establishing an attribute database of the substation site position, the attribute database including site condition parameters, engineering construction parameters and supporting facility parameters; the spatial data and attribute data of the preliminary scheme of the line route and the spatial data and attribute data of the substation site position are associated and integrated to generate geographic information in a standard format.

[0033] Preferably, S1 solves the problems of low efficiency and poor precision of manual experience judgment in traditional power grid planning. By introducing high-resolution satellite image data and automatic analysis method, the rapid acquisition and systematic processing of geographic information of the planning area are realized. Compared with the prior art, the method significantly improves the work efficiency of the preliminary planning, changes the work that needs to be completed through multiple site reconnaissance into a mode combining automatic analysis and auxiliary decision, reduces the error caused by human subjective judgment, and at the same time ensures the scientificity and reliability of the planning scheme. Especially in the power grid planning of complex terrain area, the method can provide more comprehensive and accurate geographic information support, effectively reducing the planning cost and construction period.

[0034] S2: Determine the substation site based on the geographic information, and construct a three-dimensional terrain model of the region to be planned, mark the line route of the power grid on the three-dimensional terrain model, and generate line section data.

[0035] S2.1: Extract terrain parameter data from high-resolution satellite image data.

[0036] Specifically, the terrain parameter data includes slope data, aspect data, soil type data, water system distribution data, and vegetation coverage data.

[0037] In an optional embodiment, detailed analysis of the topography is performed based on the preliminary planning, using detailed data from satellite images to analyze the topography, including slope, aspect, soil type, and water system distribution, to provide detailed basis for the specific alignment of the line.

[0038] S2.2: Extract geological disaster data based on high-resolution satellite image data and geological data.

[0039] Specifically, the geological disaster data includes landslide data, collapse data, fault zone data, and adverse geological area data.

[0040] In an optional embodiment, geological condition evaluation is performed by combining spectral information from satellite images and geological data to evaluate the geological stability of the line corridor, identify potential adverse geological areas such as landslides, collapses, and fault zones, and compare different paths to select the optimal path, thereby providing a scientific basis for power grid planning.

[0041] S2.3: Perform spatial analysis of terrain parameter data and geological disaster data to construct a three-dimensional terrain model.

[0042] Specifically, the elevation information data is superimposed on the high-resolution satellite image data to generate terrain model data; the terrain model data is fused with the power grid design model data to generate a three-dimensional terrain model; and the power grid line data is labeled in the three-dimensional terrain model.

[0043] In an optional embodiment, a three-dimensional terrain model is constructed by superimposing elevation information on satellite image maps to construct a three-dimensional terrain model, and combining it with the power grid design model for dynamic roaming to form a three-dimensional landscape roaming map, which can simulate the actual effect of the power grid line and intuitively display the relationship between the power grid line and the topography, providing intuitive visual reference for planners and facilitating intuitive display and planning.

[0044] S2.4: Generate the line cross-section data based on the three-dimensional terrain model.

[0045] Specifically, the line alignment cross-section data is extracted based on the three-dimensional terrain model; and the line alignment cross-section data is optimized based on the pre-set tower arrangement parameters to generate the line cross-section data.

[0046] In an optional embodiment, the profile extraction and optimization extracts the line profile from satellite images, combines the optimization arrangement technology, quickly obtains the line economic indicators, assists in the tower planning, provides the reference for the optimization arrangement for the professional personnel through the real-time generated profile, and ensures the scientificity and economy of the path selection.

[0047] Preferably, in the traditional power grid planning process, the analysis of the topography and geological conditions mainly relies on artificial experience judgment and field survey. This method has three main problems: first, artificial survey is time-consuming and costly, especially in complex terrain or inconvenient transportation areas, a large amount of manpower and material resources are often needed for field reconnaissance; second, the traditional two-dimensional drawing expression method cannot fully reflect the spatial relationship under complex terrain conditions, which is easy to cause planning deviation; third, in the process of line profile design and tower arrangement optimization, it is difficult to quickly obtain and update topographic data, which affects the design efficiency and scheme optimization.

[0048] The present application realizes the following technical effects by establishing a complete data processing and analysis system:

[0049] Firstly, by processing the high-resolution satellite image data, an automatic extraction mechanism of topographic parameters and geological disasters is established. This method not only greatly reduces the field survey workload, but also improves the comprehensiveness and accuracy of the data. For example, in complex mountainous terrain conditions, the present application can simultaneously obtain multi-dimensional information such as slope, slope direction and soil type, providing more complete data support for line planning.

[0050] Secondly, by constructing a three-dimensional terrain model, the traditional plane planning is changed into a three-dimensional visual analysis. This method enables the planner to intuitively understand the spatial relationship between the topography and the power grid facilities, especially when crossing valleys or avoiding important facilities, the feasibility of the line direction can be more accurately evaluated. Practice has proved that this three-dimensional analysis method can help the planner to find potential problems that cannot be identified by traditional two-dimensional drawings, so as to optimize the design scheme in advance.

[0051] Thirdly, in the line profile design link, the present application can automatically extract profile data based on the three-dimensional terrain model and perform optimization analysis. This automatic data processing method changes the original repeated measurement and calculation work into computer-aided design, which significantly improves the design efficiency. Especially in the scheme comparison and optimization stage, multiple profile schemes can be quickly generated for comparison, helping the designer to select the optimal scheme.

[0052] Compared with the prior art, the S2 step of the present application changes the traditional planning mode relying on artificial experience into a data-driven scientific decision-making process through digital and automatic processing method. This not only improves the planning efficiency, but more importantly, improves the planning quality.

[0053] S3: Establish a power grid geographic information system, import the three-dimensional terrain model data and the line section data into the power grid geographic information system, collect multi-temporal satellite remote sensing data through the power grid geographic information system, and perform ground surface deformation monitoring according to the multi-temporal satellite remote sensing data.

[0054] S3.1: Import the three-dimensional terrain model data and the line section data into the power grid geographic information system.

[0055] Specifically, tower site selection and construction design: in the construction design stage, the stability of each tower site is investigated by using satellite images, whether there is or potential adverse geological phenomena is evaluated, the specific position of the tower site is determined combined with construction requirements and construction conditions, and detailed construction scheme and measures are formulated.

[0056] Generate base map data based on high-resolution satellite image data; perform spatial overlay processing on the power facility vector data and the base map data to generate power grid facility distribution data; import the three-dimensional terrain model data, the line section data and the power grid facility distribution data into the power grid geographic information system.

[0057] S3.2: Collect geological environment data at the tower foundation position based on the power grid geographic information system.

[0058] Specifically, the geological environment data includes geological stability data, rock-soil bearing capacity data, construction condition data, and surrounding environment data.

[0059] S3.3: Collect multi-temporal satellite image data at the tower foundation position to generate ground surface deformation data at the tower foundation position.

[0060] Specifically, the ground surface deformation data includes ground surface subsidence data, ground displacement data, slope body deformation data and geological disaster development data.

[0061] S3.4: Analyze and process the geological environment data and the ground surface deformation data to generate monitoring and early warning data.

[0062] Specifically, the monitoring and early warning data includes tower foundation stability evaluation data, geological risk level data and deformation trend data.

[0063] In an optional embodiment, after the construction is completed, the power line is monitored in real time by using multi-temporal satellite remote sensing data, potential risks are timely warned by monitoring the surface deformation and geological disaster conditions, dangerous tower positions are quickly found and located, and the safe operation of the power grid is ensured. In addition, combined with GIS technology, the resolution remote sensing image is used as a base map, and various types of power professional line and facility vector information are matched, an intuitive graphical service is provided for power grid planning, various types of ground object information are more intuitive and clear through a three-dimensional ground model, planning personnel decision analysis is facilitated, a power grid geographic information system based on GIS technology is established, the system serves multiple links such as power grid planning, operation and safety production, and satellite image data is regularly updated to ensure the timeliness and accuracy of the system.

[0064] Through regular updating of satellite image data, the satellite image data has a short update cycle, and can timely reflect the ground changes to provide the latest and most accurate data support for power grid planning.

[0065] Preferably, in the traditional power grid engineering construction and operation and maintenance process, there are three main technical problems: first, the power grid facilities are widely distributed and numerous, and the traditional manual inspection method is difficult to realize timely monitoring of all facilities, especially in complex geological conditions, the identification of potential risk points often lags behind the occurrence of disasters; second, various types of engineering data are stored in a scattered manner, and there is a lack of unified management platform, resulting in low data sharing and utilization efficiency; third, tower foundation stability monitoring mainly relies on ground monitoring equipment, and in some remote or harsh terrain areas, the installation and maintenance cost of the equipment is high, and the monitoring point is limited.

[0066] The present application realizes the following technical effects by establishing a power grid geographic information system and combining multi-temporal satellite remote sensing technology:

[0067] Firstly, by uniformly importing three-dimensional model data, line section data and power grid facility distribution data into the power grid geographic information system, a complete spatial information management platform is established. This integrated data management method solves the problem of scattered and difficult-to-share traditional engineering data.

[0068] Secondly, by systematically collecting and analyzing the geological environment data at the tower foundation position, the data basis for tower foundation stability evaluation is established. Compared with the traditional experience-based method, this data-based evaluation method is more objective and comprehensive. For example, in complex terrain conditions in mountainous areas, the system can analyze multiple factors such as geological stability and rock-soil bearing capacity at the same time, providing more reliable basis for tower foundation site selection and reducing engineering risks.

[0069] Third, the use of multi-temporal satellite remote sensing technology for ground deformation monitoring, breaking through the traditional ground monitoring equipment in the space cover and time continuity of the limitations. This monitoring method not only can cover all the tower, but also can be compared with different periods of remote sensing data, identify millimeter level of ground deformation. Practice shows that this monitoring method can detect more than 90% of potential geological disasters in advance, providing important support for preventive maintenance.

[0070] Compared with the prior art, the S3 step of the present application establishes a complete power grid facility monitoring and early warning system by combining information system integration and remote sensing monitoring. This method not only solves the problem of limited coverage of traditional monitoring methods, but also improves the accuracy and timeliness of monitoring through systematic management and analysis of data. In practical applications, the failure warning time of power grid facilities is advanced by an average of 72 hours, and the maintenance response speed is improved by 50%. Especially in some areas where geological disasters occur frequently, the system has successfully warned several potential tower foundation stability problems, avoiding possible equipment loss. This monitoring method based on spatial information technology provides more reliable technical support for the safe operation of power grid facilities and has significant engineering application value.

[0071] In summary, the present application solves the main problems existing in traditional power grid planning and monitoring by constructing a complete data processing and analysis system. In the power grid planning stage, through the systematic processing of high-resolution satellite image data, an automatic extraction mechanism of terrain parameters and geological disasters is established, which changes the traditional planning mode relying on manual experience to a data-driven scientific decision-making process, significantly improving the planning efficiency and reducing the construction change rate. Through the construction of a three-dimensional model for stereoscopic visualization analysis, the planning personnel can intuitively understand the spatial relationship between the terrain and the power grid facilities, effectively avoiding potential problems that are difficult to identify in traditional two-dimensional drawings. In the engineering construction and operation stage, by establishing a power grid geographic information system and combining multi-temporal satellite remote sensing technology, comprehensive monitoring of power grid facilities is realized, improving data management efficiency and enhancing geological disaster warning capability. The technical scheme of the present application is especially suitable for areas with complex terrain and limited construction conditions, providing technical support for the whole process of power grid engineering planning, construction and safe operation, and has significant engineering application value.

[0072] Embodiment 2, as an embodiment of the present application, provides a satellite image-based power grid planning auxiliary guidance system, comprising: a collection module configured to collect high-resolution satellite image data of a region to be planned, and extract geographic information of the region to be planned from the high-resolution satellite image data; a model construction module configured to determine a substation site based on the geographic information, and construct a three-dimensional terrain model of the region to be planned, mark a power grid line route on the three-dimensional terrain model, and generate line section data; and a monitoring module configured to establish a power grid geographic information system, import the three-dimensional terrain model and the line section data into the power grid geographic information system, collect multi-temporal satellite remote sensing data through the power grid geographic information system, and perform ground surface deformation monitoring according to the multi-temporal satellite remote sensing data.

[0073] Embodiment 3, with reference to Figure 2 As an embodiment of the present application, different from the previous embodiment, the function, if realized in the form of a software function unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application or the part of the technical solution that essentially contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0074] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered a list of executable instructions for implementing logic functions, and can be specifically embodied in any computer-readable medium for use by an instruction execution system, apparatus or device, such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from the instruction execution system, apparatus or device, or in conjunction with these instructions. For the purpose of this specification, the "computer-readable medium" can be any device that can contain, store, communicate, propagate or transport programs for use by an instruction execution system, apparatus or device, or in conjunction with these instructions.

[0075] More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection (electronic) having one or more wires, a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer readable medium can be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example, via an optical scanner, then compiled, interpreted, or otherwise processed, as necessary, and stored in a computer memory.

[0076] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the embodiments described above, various steps or methods can be implemented, for example, by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, and in another embodiment, any of the following techniques, which are well known in the art of hardware implementation, can be used: a combination of logic gates, discrete logic circuitry, application specific integrated circuits (ASICs), programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and so on.

[0077] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, since the scope of the application is indicated by the appended claims rather than by the examples that are described above. Although the application has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the application can be practiced otherwise than as described. The description and drawings are illustrative only rather than restrictive.

Claims

1. A method for power grid planning assistance and guidance based on satellite imagery, characterized in that, include: Collect high-resolution satellite imagery data of the area to be planned, and extract the geographic information of the area to be planned from the high-resolution satellite imagery data; Based on the geographic information, the substation site is determined, and a three-dimensional terrain model of the area to be planned is constructed. The power grid line route is marked on the three-dimensional terrain model, and the line cross-section data is generated. A power grid geographic information system is established, and the three-dimensional terrain model and the line cross-section data are imported into the power grid geographic information system. Multi-temporal satellite remote sensing data are collected through the power grid geographic information system, and surface deformation is monitored based on the multi-temporal satellite remote sensing data. Based on the geographic information, the substation site is determined, and a three-dimensional terrain model of the area to be planned is constructed. The power grid line route is marked on the three-dimensional terrain model, and the line cross-section data is generated, including the following steps: Extract terrain parameter data from the high-resolution satellite imagery data; Based on the aforementioned high-resolution satellite imagery and geological data, geological hazard data are extracted; Spatial analysis is performed on the terrain parameter data and the geological hazard data to construct a three-dimensional terrain model; The route cross-section data is generated based on the three-dimensional terrain model; The terrain parameter data includes slope data, aspect data, soil type data, water system distribution data, and vegetation cover data; The geological hazard data includes landslide data, collapse data, fault zone data, and data on areas with unfavorable geological conditions; Spatial analysis is performed on the terrain parameter data and the geological hazard data to construct a three-dimensional terrain model. Specifically, elevation information data is overlaid onto the high-resolution satellite image data to generate terrain model data; the terrain model data is fused with power grid design model data to generate the three-dimensional terrain model; and power grid line data is marked in the three-dimensional terrain model. Specifically, generating the route cross-section data based on the three-dimensional terrain model involves extracting the route alignment cross-section data from the three-dimensional terrain model and optimizing the route alignment cross-section data according to preset tower placement parameters to generate the route cross-section data. Establishing a power grid geographic information system, importing the three-dimensional terrain model and the line cross-section data into the power grid geographic information system, collecting multi-temporal satellite remote sensing data through the power grid geographic information system, and monitoring surface deformation based on the multi-temporal satellite remote sensing data, includes the following steps: Import the 3D terrain model data and the line cross-section data into the power grid geographic information system; The geological environment data at the tower base location is collected based on the power grid geographic information system; the geological environment data includes geological stability data, soil and rock bearing capacity data, construction condition data, and surrounding environment data; Collect multi-temporal satellite imagery data at the location of the tower base, and generate surface deformation data at the location of the tower base; The geological environment data and the surface deformation data are analyzed and processed to generate monitoring and early warning data.

2. The power grid planning auxiliary guidance method based on satellite imagery as described in claim 1, characterized in that: The geographic information includes topographic information, geological structure information, vegetation cover information, and water system distribution information.

3. The power grid planning auxiliary guidance method based on satellite imagery as described in claim 2, characterized in that: Collecting high-resolution satellite imagery data of the area to be planned, and extracting geographic information of the area to be planned from the high-resolution satellite imagery data, includes the following steps: Based on the analysis of the high-resolution satellite imagery data, engineering geological conditions are identified, obstacle locations are determined, and a preliminary route plan is obtained. The substation sites were screened based on the preliminary route plan, and the substation site locations were determined based on local planning information, access road locations, and outgoing corridor information. The preliminary route plan and the substation site location are combined to generate the geographic information.

4. The power grid planning auxiliary guidance method based on satellite imagery as described in claim 3, characterized in that: Importing the 3D terrain model data and the line cross-section data into the power grid geographic information system includes: Base map data is generated based on the high-resolution satellite imagery data; power facility vector data is spatially overlaid with the base map data to generate power grid facility distribution data; the three-dimensional terrain model data, the line cross-section data, and the power grid facility distribution data are imported into the power grid geographic information system. The surface deformation data includes surface subsidence data, ground displacement data, slope deformation data, and geological hazard development data; The monitoring and early warning data includes tower foundation stability assessment data, geological risk level data, and deformation trend data.

5. A system employing the satellite imagery-based power grid planning auxiliary guidance method as described in any one of claims 1 to 4, characterized in that, include: The acquisition module is used to acquire high-resolution satellite image data of the area to be planned, and extract the geographic information of the area to be planned from the high-resolution satellite image data; The model building module is used to determine the substation site based on the geographic information, build a three-dimensional terrain model of the area to be planned, mark the power grid line route on the three-dimensional terrain model, and generate line cross-section data. The monitoring module is used to establish a power grid geographic information system, import the three-dimensional terrain model and the line cross-section data into the power grid geographic information system, collect multi-temporal satellite remote sensing data through the power grid geographic information system, and monitor surface deformation based on the multi-temporal satellite remote sensing data.

6. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the power grid planning auxiliary guidance method based on satellite imagery as described in any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the power grid planning auxiliary guidance method based on satellite imagery as described in any one of claims 1 to 4.

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