Power transmission and transformation project environment water conservation problem analysis method and system based on spatial analysis

Abstract

The invention discloses a power transmission and transformation project environmental water conservation problem analysis method and system based on spatial analysis. The method comprises the following steps: obtaining an associated geographic area of a construction line, then dividing sensitive areas to obtain sensitive patrol areas of different sensitive types, and determining protection grade parameters according to the sensitive types; collecting the spatial crossing and overlapping conditions of the construction lines and the sensitive patrol areas, and obtaining the line crossing information of each sensitive patrol area; and calculating a protection adjustment coefficient according to the line crossing information, endowing the protection adjustment coefficient of each sensitive patrol area with a corresponding protection level parameter to obtain a sensitive risk level, and performing early warning on the environmental water protection risk of each sensitive patrol area according to the sensitive risk level. And updating the corresponding line crossing information according to the construction period of each sensitive patrol area so as to re-determine the protection adjustment coefficient of each sensitive patrol area. According to the invention, different sensitive types of areas are monitored, data can be updated in time according to the construction period, and the accuracy of an analysis result is ensured.

Description

Technical Field

[0001] This invention relates to the field of environmental protection and water conservation in power transmission and transformation engineering construction, specifically to a method and system for analyzing environmental protection and water conservation issues in power transmission and transformation engineering based on spatial analysis. Background Technology

[0002] Currently, during the construction of power transmission and transformation projects, digital monitoring methods can be used to promptly and accurately identify environmental and soil conservation issues and risks in the projects (mainly around tower foundations). For example, satellite and drone remote sensing technologies are used to acquire image data. Through image data analysis and intelligent identification, environmental and soil conservation issues can be identified in a timely manner, minimizing environmental disturbance and soil erosion risks, and ensuring that environmental and soil conservation issues are addressed promptly and effectively. Existing environmental and soil conservation inspections are often static. Once a sensitive area is designated, its risk level is considered constant throughout the construction period. However, in reality, the risks faced by the same sensitive area at different construction stages (such as earthwork excavation, foundation pouring, tower erection, and line stringing) are drastically different. Secondly, current methods generally utilize image data and remote sensing data for online monitoring of project disturbance in the construction area. Real-time analysis of the collected data is then used to determine whether environmental and soil conservation risks exist in each monitored area during the current construction period. While the aforementioned methods can accurately determine whether or not there are environmental and water conservation risks in the various monitoring areas of the construction project, they overlook the diverse characteristics of the geographical areas through which the project route passes. For example, different geographical areas may have different types and levels of construction sensitivity, and relying solely on monitoring data around the tower base may result in low accuracy. Furthermore, environmental monitoring data may be outdated; if the construction phase changes and the environmental monitoring data is not updated in a timely manner, the accuracy of the judgment will decrease. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide a method and system for analyzing environmental and water conservation issues in power transmission and transformation projects based on spatial analysis. The method divides the construction area according to the environmental and water conservation sensitivity types, consciously monitors and analyzes data for different sensitive areas, and updates the data in a timely manner according to the different construction phases to ensure the accuracy of the final environmental and water conservation risk analysis structure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: In a first aspect, this invention proposes a method for analyzing environmental and water conservation issues in power transmission and transformation projects based on spatial analysis, comprising the following steps: Obtain the associated geographical area of ​​the construction route, divide the associated geographical area into sensitive areas, and obtain the sensitive inspection area corresponding to different sensitivity types; The protection level parameters for each sensitive patrol area are determined based on the sensitivity type of each sensitive patrol area; Collect information on the spatial overlap between the construction route and each sensitive patrol area to obtain the route overlap information for each sensitive patrol area. The route overlap information includes the overlap length, overlap position, and overlap method between the construction route and the sensitive patrol area. Based on the line crossing information of each sensitive patrol area, the protection adjustment coefficient of each sensitive patrol area is calculated. The protection adjustment coefficient of each sensitive patrol area is assigned to the corresponding protection level parameter to obtain the sensitivity risk level of each sensitive patrol area. Based on the sensitivity risk level, the environmental and water protection risks of each sensitive patrol area are warned. At the same time, the corresponding line crossing information is updated according to the construction period of each sensitive patrol area to redetermine the protection adjustment coefficient of each sensitive patrol area.

[0005] Furthermore, when obtaining the associated geographical region of the construction route, the coordinate set of the construction route is obtained. Taking the coordinates of the key points in the coordinate set of the construction route as the center and the radius as the specified distance, the initial subdivision region corresponding to each key point coordinate is delineated. Then, all the initial subdivision regions are merged to obtain the associated geographical region of the construction route.

[0006] Furthermore, when dividing the associated geographic region into sensitive areas, the following steps are included: The associated geographic region is divided into cells, and the basic geographic data and ecological environment data of each cell are obtained. The sensitivity of the basic geographic data and ecological environment data of each cell is determined and scored to obtain the sensitivity type information of each cell. Select cells in pairs and calculate the similarity of sensitive type information of the selected cells. Assign the same merge mark to cells with sensitive type information similarity greater than the preset similarity. If a cell is assigned multiple merge marks, retain all merge marks. If the distance between different cells assigned the same merge mark is less than or equal to a preset distance, the cells are merged into a single sensitive inspection area.

[0007] Furthermore, when calculating the protection adjustment coefficient for each sensitive inspection area based on the line crossing information of each sensitive inspection area, the specific steps include: The overlap length, overlap position, and overlap method in the line intersection information of the current sensitive inspection area are matched with a preset lookup table to obtain the first coefficient corresponding to the overlap length, the second coefficient corresponding to the overlap position, and the third coefficient corresponding to the overlap method. The first coefficient, the second coefficient, and the third coefficient are then combined to calculate the protection adjustment coefficient of the current sensitive inspection area.

[0008] Furthermore, the specific steps for updating the corresponding line crossing information based on the construction phase of each sensitive inspection area include: Collect information on the spatial overlap of the current construction phase in the current sensitive inspection area to obtain the line crossing information for the current construction phase in the current sensitive inspection area; The overlap length, overlap position, and overlap method in the current construction phase of the sensitive inspection area are compared with the overlap length, overlap position, and overlap method in the previous construction phase to obtain the change in overlap length, overlap position, and overlap method. If at least one of the changes in overlap length, overlap position, and overlap method reaches a preset value, the line crossing information of the current sensitive inspection area is updated to the line crossing information of the current construction period, and the step of matching the overlap length, overlap position, and overlap method in the line crossing information of the current sensitive inspection area with a preset lookup table is executed.

[0009] Furthermore, the current construction period and the previous construction period are the current time point and the previous time point in the preset construction plan or the temporary emergency plan, respectively.

[0010] Furthermore, the change in the overlapping position specifically refers to the change in the center of gravity or area of ​​the overlapping part of the line in the sensitive inspection area during the current construction phase compared to the change in the center of gravity or area of ​​the overlapping part of the line in the sensitive inspection area during the previous construction phase. The change in the overlap pattern specifically refers to the change in the length-density ratio or curvature of the overlapping portion of the line in the sensitive inspection area during the current construction phase compared to the length-density ratio or curvature of the overlapping portion of the line in the sensitive inspection area during the previous construction phase.

[0011] Furthermore, after matching the overlap length, overlap position, and overlap method in the current sensitive patrol area's line intersection information against a preset lookup table, it also includes: Calculate the change ratio of the overlap length, overlap position, and overlap method of the line crossing information in the current construction phase of the current sensitive inspection area compared with the overlap length, overlap position, and overlap method of the line crossing information in the previous construction phase, and obtain the first ratio variable corresponding to the overlap length, the second ratio variable corresponding to the overlap position, and the third ratio variable corresponding to the overlap method. The first, second, and third ratio variables are combined to obtain the total ratio variable, and the correction coefficient corresponding to the total ratio variable is matched. The correction coefficient corresponding to the current sensitive patrol area is combined with the first coefficient, the second coefficient, and the third coefficient to obtain the protection adjustment coefficient of the current sensitive patrol area.

[0012] Furthermore, when combining the first, second, and third ratio variables for calculation, the first, second, and third ratio variables are calculated by weighted averaging to obtain the total ratio variable, where the weight of the first ratio variable is greater than the weight of the second ratio variable, and the weight of the second ratio variable is greater than the weight of the third ratio variable.

[0013] Secondly, the present invention also proposes a spatial analysis-based system for analyzing environmental and water conservation issues in power transmission and transformation projects, comprising a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program is executed by the processor to implement the steps of the spatial analysis-based method for analyzing environmental and water conservation issues in power transmission and transformation projects.

[0014] Compared with the prior art, the advantages of the present invention are as follows: This invention accurately identifies the geographical intersections between construction lines and various sensitive areas in the spatial dimension. In the temporal dimension, it introduces the concept of "construction phase," dynamically updating line intersection information based on the construction phase of each inspected sensitive area, capturing the dynamic evolution of risks at different construction stages over time. Furthermore, through a "protection adjustment coefficient," it quantifies and couples information from the first two dimensions, outputting a precise "sensitivity risk level." This allows for a more reasonable and detailed control over environmental and water conservation issues in the geographically associated areas of the entire power transmission and transformation project, significantly improving the accuracy and reliability of environmental and water conservation risk analysis results. Attached Figure Description

[0015] Figure 1 This is a flowchart of the analysis method according to an embodiment of the present invention.

[0016] Figure 2 This is a flowchart of step S100 in an embodiment of the present invention.

[0017] Figure 3 This is a flowchart of sub-step S130 in step S100 of an embodiment of the present invention.

[0018] Figure 4 This is a partial flowchart of step S400 in an embodiment of the present invention.

[0019] Figure 5 This is another part of the flowchart of step S400 in an embodiment of the present invention.

[0020] Figure 6 This is a flowchart of sub-step S420 in step S400 of an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the analysis system module according to an embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0023] Before introducing specific embodiments of the present invention, the relevant technologies will be described first.

[0024] Patent application CN119047826A discloses a method and system for risk identification of landslide geological disasters affecting oil and gas pipelines, which relates to the field of oil and gas pipeline geological disaster prevention and control technology. It includes determining the landslide monitoring area and dividing it into several sub-areas by obtaining the laying route information of the oil and gas pipeline; identifying the disaster impact factors in each sub-area and drawing the landslide risk profile based on these factors; calculating the overlap rate between the landslide risk profile and the laying route profile, obtaining the monitoring risk level and prioritizing it; and updating the monitoring risk level and priority ranking according to the changes in the risk profile. This identification method and system can identify the importance and risk level of the crossing area, thereby carrying out targeted regional centralized prevention and control, and can update the risk level in a timely manner through the dynamic changes in monitoring data, achieving the characteristics of combining centralized identification and dynamic identification. It can be seen that the above scheme and the present invention have the following differences: (1) The risk of this scheme comes from the threat of external geological environment (landslide) to the project assets. The risk source of the present invention comes from the internal, active construction behavior (such as excavation, waste disposal, drainage) and its impact on the environment. (2) The core method of this scheme is to generate a "risk profile" with an unstable boundary and continuously changing risk value based on multiple factors, and then calculate its overlap rate with the pipeline to determine the level of risk. In contrast, this invention identifies the spatial relationship between the construction line and the preset sensitive area through spatial intersection. The level of risk depends on "whether there is an intersection" and "how much there is an intersection". (3) The updating driving factor of this scheme is to update the risk profile based on environmental monitoring data (such as ground movement changes). The risk changes with external geological environmental conditions (such as changes in landslide stability after rainfall), rather than based on the construction stage. In contrast, the updating driving factor of this invention is the construction period. The risk level is dynamically adjusted according to different construction periods (such as foundation construction, tower erection, and line erection). The risk changes with the progress of the project construction (over time). Therefore, although both use similar technical shells such as zoning, spatial analysis, and dynamic updating, the core problems they need to solve, the sources of risk, and the objects of protection are completely different. Therefore, their specific implementation logic and parameter settings are also significantly different.

[0025] Example During the construction of power transmission and transformation projects, the use of digital monitoring methods such as satellite and UAV remote sensing for online monitoring of the construction area can significantly improve the timely detection and handling of environmental protection and soil and water conservation issues. By interpreting and analyzing the collected satellite and UAV images of the project site, environmental protection and soil and water conservation issues can be identified and compared with the approved environmental impact assessment plan and soil and water conservation report. Identified environmental protection and soil and water conservation issues (mainly around the tower foundation) are then classified and addressed according to different risk levels. In the aforementioned practice, due to different ecological environment characteristics, the types and risk levels of environmental protection and soil and water conservation issues vary significantly, and their response to construction activities also differs, exhibiting a regionalized situation. Especially under different construction phases, environmental protection and soil and water conservation issues will also dynamically change. If image data is used for analysis, complex coverage areas or time lags in the shooting time can significantly affect the results of subsequent image data analysis, thus affecting the accuracy of environmental protection and soil and water conservation risk warnings. Therefore, a large amount of manual intervention is needed to re-verify and review the captured data. Therefore, in actual operation, the above two main problems will be encountered. On the one hand, power transmission and transformation projects often span vast geographical areas, which may have different types and sensitivities to the ecological environment (such as significant differences in soil stability, vegetation cover, and rainfall in mountainous and plain areas). This means that different sub-regions will respond differently to construction activities. On the other hand, during construction, the environmental conditions will change due to factors such as seasonal weather changes and construction phase transitions. If the monitoring data used to assess environmental and water conservation risks fails to reflect these changes in a timely manner, the risk assessment based on lagging data may be inaccurate.

[0026] To address the aforementioned issues, this embodiment proposes a spatial analysis-based method for analyzing environmental and water conservation issues in power transmission and transformation projects. This method uses satellite imagery and the associated areas traversed by planned construction lines to classify ecological and environmental characteristics, thereby distinguishing sub-regions with different environmental and water conservation sensitivities. Targeted image capture and analysis are then conducted for these sub-regions, and environmental response data is updated promptly based on changes in construction progress or stages. By combining spatial regional analysis and spatial dynamic overlap analysis, this method further ensures targeted and timely environmental and water conservation issue analysis of the areas associated with the construction lines, achieving more accurate and relevant environmental and water conservation risk analysis results and reducing the intensity of manual verification. Figure 1 As shown, the method includes the following steps: S100: Obtain the associated geographical area of ​​the construction line, divide the associated geographical area into sensitive inspection areas, and obtain the sensitive inspection areas corresponding to different sensitive types; S200: Determine the protection level parameters for each sensitive patrol area based on its sensitivity type; S300: Collect the spatial intersection and overlap between the construction line and each sensitive inspection area to obtain the line intersection information of each sensitive inspection area. The line intersection information includes the overlap length, overlap position and overlap method between the construction line and the sensitive inspection area. S400: Calculate the protection adjustment coefficient for each sensitive patrol area based on the line crossing information of each sensitive patrol area, assign the protection adjustment coefficient of each sensitive patrol area to the corresponding protection level parameter to obtain the sensitivity risk level of each sensitive patrol area, issue an early warning for the environmental and water protection risks of each sensitive patrol area based on the sensitivity risk level, and update the corresponding line crossing information according to the construction period of each sensitive patrol area to redetermine the protection adjustment coefficient of each sensitive patrol area.

[0027] The above steps divide the relevant geographical areas into sensitive inspection zones based on the types of ecological and environmental sensitivities. Targeted image data collection and analysis are conducted for each sub-region, and environmental response data is dynamically updated in conjunction with the construction progress. This facilitates accurate assessment and early warning of environmental and water conservation risks along the power transmission and transformation project. The entire process not only utilizes spatial cross-identification technology to determine the degree of impact of construction activities on different sensitive inspection areas, but also dynamically calculates protection adjustment coefficients to update the sensitivity risk level of each area in real time. This effectively improves the accuracy and timeliness of environmental and water conservation problem identification and reduces the need for manual verification.

[0028] The following provides a detailed explanation of each step.

[0029] In this embodiment, step S100 involves locating the construction route (or the planned route to be constructed) on a map and selecting the associated geographical area of ​​the construction route. The associated geographical area is the area that may be affected by the construction route activities. It can be determined and confirmed according to the direction of the construction route and the specified distance interval on both sides of the construction route, or the preferred range can be determined by the results of on-site topographic and geomorphological surveys. The identified associated geographical area is then subjected to further environmental and water conservation sensitivity analysis (ecological environment sensitivity type and sensitivity analysis) to identify different environmental and water conservation sensitive areas as sensitive inspection areas.

[0030] In this embodiment, when determining the associated geographical areas and dividing sensitive patrol areas, a Geographic Information System (GIS) can be used to assist in the determination, thereby improving the level of informatization. For example... Figure 2 As shown, the specific steps of step S100 are as follows: First, obtain the associated geographic area of ​​the construction route, including the following steps: S110: Based on GIS, obtain the coordinate set of the construction line, take the coordinates of the key points in the coordinate set of the construction line as the center, and delineate the initial subdivision area corresponding to the coordinates of each key point with a specified distance as the radius, and then merge all the initial subdivision areas to obtain the associated geographic area of ​​the construction line. This step uses GIS to locate the specific geographic coordinates of the construction line. Taking the coordinates of key points (such as the coordinates of the base tower) as the center, circles are drawn with a specified distance (generally no more than three kilometers, depending on the situation) as the radius to obtain several circular areas as initial subdivision areas. The union of these initial subdivision areas is then used to obtain the associated geographic area.

[0031] Then, sensitive patrol areas are delineated for the associated geographic regions, including the following steps: S120: Divide the associated geographic region into cells to obtain multiple cell regions, obtain the basic geographic data and ecological environment data of each cell, determine and score the sensitivity of the basic geographic data and ecological environment data of each cell, and obtain the sensitivity type information of each cell; This step involves dividing the associated geographic region into grids, i.e., creating multiple cell regions. The size of each cell region is determined as needed; finer divisions yield more accurate results but also increase computational complexity. Then, environmental and water conservation sensitivity analysis (ecological environment sensitivity type and sensitivity analysis) is performed on each cell region to obtain environmental and water conservation sensitivity information. When conducting ecological and environmental sensitivity type and sensitivity analysis, basic geographic data (such as digital elevation model data of the construction route and surrounding areas to understand surface morphology characteristics, including slope and aspect; and current land use types such as forests, farmland, and urban land and vegetation cover through satellite imagery or aerial photography) and ecological and environmental data (such as data on the species and distribution of flora and fauna in the region, especially information on rare and endangered species; data on water conservation, soil retention, and carbon storage capacity; and data on water quality and flow changes of rivers, lakes, and other water bodies) can be collected in advance. After the above data is actually collected, processed and standardized, sensitivity is determined and scored according to a pre-constructed evaluation index system. Finally, each unit can obtain one or more possible environmental and water conservation sensitivity categories (one or more to form environmental and water conservation sensitivity information), such as mild species sensitivity, severe water body sensitivity, severe soil erosion sensitivity, moderate geological disaster sensitivity, severe climate change sensitivity, etc., and each type has a different sensitivity response to construction activities. These environmental and water conservation sensitivity categories are used as environmental and water conservation sensitivity factors to participate in the final determination of the environmental and water conservation sensitivity type.

[0032] S130: Merge cell regions whose similarity to environmental and water conservation sensitive information exceeds a preset similarity into the sensitive inspection area; This step is based on the above-mentioned environmental and water conservation sensitive information (one or more environmental and water conservation sensitive categories) to perform similarity calculation of cell regions (implemented by Euclidean distance, cosine similarity or cluster analysis, etc.). The similarity analysis is performed on all environmental and water conservation sensitive information of every two cell regions to obtain the similarity calculation results. Then, cell regions (two or more) with similarity exceeding the preset similarity can be merged into the sensitive inspection area.

[0033] Considering that different cell regions have similar environmental and water conservation sensitivity characteristics, and they may be separated by many cells, merging them would include other noisy cell regions. Therefore, it is necessary to limit the interval between cell regions with similar environmental and water conservation sensitivity characteristics, such as... Figure 3 As shown, merging cell regions with similarity exceeding a preset similarity threshold for environmental and water conservation sensitive information into the sensitive inspection area includes the following steps: S131) ​​Select cells in pairs and calculate the similarity of sensitive type information of the selected cells. Assign the same merge mark to cells with sensitive type information similarity greater than the preset similarity. This step calculates cell regions that exceed a preset similarity and assigns them the same merge mark, serving as the basis for prompting that they should be merged.

[0034] S132) The distance between cell regions with the same merge mark is determined. If the distance between different cells with the same merge mark is less than or equal to a preset distance, the cells are merged into a sensitive inspection area. This step involves determining the distance between cell regions assigned the same merge mark. Cell regions with a distance not exceeding a preset limit are merged into the sensitive inspection area. If the distance between them is small (e.g., the distance between two points is less than three cells), then the corresponding cell regions assigned the same merge mark are merged into one sensitive inspection area. This method enables the environmental and water conservation sensitive information in the sensitive inspection area to have a concentrated characteristic.

[0035] Based on this, considering that a cell range may be merged with different cell ranges to form different sensitive inspection areas, in order to ensure that different sensitive inspection areas have strong environmental and water conservation sensitivity characteristics, the cell range is allowed to serve as the basis for merging different sensitive inspection areas. Therefore, step S131 also includes: if a cell is assigned multiple merge tags, all merge tags are retained. This means that multiple merge tags exist in the same cell range to serve as the basis for merging different sensitive inspection areas, rather than merging one at a time, thereby preserving the easily identifiable environmental and water conservation sensitivity characteristics of each sensitive inspection area.

[0036] Through steps S110 to S130, this embodiment combines cell division and environmental protection sensitive factor identification to merge cell areas with similar environmental protection sensitive information and a distance not exceeding a preset value into sensitive inspection areas. At the same time, it allows the same cell area to participate in the merging of multiple sensitive inspection areas, thereby ensuring that each sensitive inspection area has concentrated and easily identifiable environmental protection sensitive features. It not only introduces distance restrictions and multi-marker merging mechanisms to effectively avoid interference from noisy cell areas, but also allows a cell area to serve as the basis for multiple merging, preserving the accuracy and typicality of sensitive inspection area division.

[0037] In this embodiment, step S200 determines the protection level of each sensitive patrol area based on its own environmental and water conservation sensitivity characteristics. That is, by extracting the sensitive type information that has been collected and analyzed in the sensitive patrol area, the protection level parameter is used to feed back the sensitive patrol area's sensitivity to environmental and water conservation issues, and it is represented by a numerical value or a group of numerical values.

[0038] Step S300 in this embodiment indicates whether each defined sensitive patrol area is directly or indirectly affected by the construction activities of the construction line. If the construction line directly passes through the sensitive patrol area, it is a direct impact, and the environmental and water conservation changes caused by the construction activities are more obvious. If the construction line does not pass through the sensitive patrol area, it may have an indirect impact, and the environmental and water conservation changes caused by the construction activities are relatively smaller. Further analysis and judgment of the degree of environmental and water conservation impact are carried out by collecting information on the spatial intersection and overlap between the construction line and the sensitive patrol area (overlap length, overlap position, and overlap method). In this embodiment, the overlapping part between the construction line and the sensitive patrol area is called the overlapping line. The overlap length is the length of the overlapping line in the sensitive patrol area. The overlap position is the location of the overlapping line in the sensitive patrol area. The overlap method is the length density ratio and curvature of the overlapping line in the sensitive patrol area. The length density ratio = total length of overlapping line / area of ​​sensitive patrol area. The curvature = actual length of overlapping line / straight-line distance between the start and end points of overlapping line.

[0039] In step S400 of this embodiment, the line crossing information obtained in step S300 is further subjected to approximation analysis. For example, by formulating scoring standards and calculation weights for various parameters of the line crossing information, a protection adjustment coefficient is obtained by merging them. Then, the protection adjustment coefficient is merged with the corresponding protection level parameter. One represents the environmental and water conservation sensitivity parameter of the sensitive inspection area itself, and the other represents the environmental and water conservation sensitivity change parameter after being affected by construction activities. The two are combined to calculate the total environmental and water conservation sensitivity parameter of the sensitive inspection area to evaluate the sensitivity risk level. Thus, the sensitivity risk level is used as a reference basis for risk assessment and prevention in the sensitive inspection area.

[0040] The standard for approximating the protection adjustment coefficient can be an empirical standard result evaluated based on actual conditions, or a prediction result obtained by continuously training a model with historical data. In this embodiment, the empirical standard result is used as an example for explanation. Figure 4 As shown, the calculation of the protection adjustment coefficient for each sensitive inspection area based on the line crossing information includes the following steps: S410: Obtain overlap length information and determine a first coefficient based on the overlap length information; obtain overlap position information and determine a second coefficient based on the overlap position information; obtain overlap mode information and determine a third coefficient based on the overlap mode information; thereby, the overlap length information, overlap position information, and overlap mode information contained in the line crossing information are further extracted and transformed, converting the overlap length information into the first coefficient, the overlap position information into the second coefficient, and the overlap mode information into the third coefficient, specifically including: The overlap length, overlap position, and overlap method in the line intersection information of the current sensitive inspection area are matched with a preset lookup table to obtain the first coefficient corresponding to the overlap length, the second coefficient corresponding to the overlap position, and the third coefficient corresponding to the overlap method.

[0041] It should be noted that the preset comparison table is established based on empirical standards for evaluation in actual situations. That is, different overlap length information is assigned to a first coefficient interval (the size of the interval is determined empirically). The larger the overlap length value, the larger the first coefficient interval, indicating a greater response to environmental and water conservation changes. Similarly, different overlap position information is assigned to a second coefficient interval. The closer the overlap position is to the center of the region, the larger the second coefficient interval, indicating a greater response to environmental and water conservation changes. Likewise, different overlap patterns are assigned to a third coefficient interval. The more complex the overlap pattern, the larger the third coefficient interval.

[0042] S430: Combine the first coefficient, second coefficient, and third coefficient to calculate the protection adjustment coefficient for the current sensitive patrol area. Specifically, the protection adjustment coefficient is directly calculated by combining the first coefficient, second coefficient, and third coefficient obtained in step S410 (summation / weighted summation, averaging / weighted averaging are all acceptable methods). The main purpose is to use the first coefficient, second coefficient, and third coefficient to calculate the overall protection adjustment coefficient, thereby reflecting the degree of impact of the construction line on environmental and water conservation sensitivity, that is, to provide feedback through the numerical protection adjustment coefficient.

[0043] After obtaining the overlap length, overlap position, and overlap method information from the line intersection information through the above steps, these information are converted into first, second, and third coefficients. These coefficients are then combined into protection adjustment coefficients to achieve a quantitative assessment of the impact of the construction of the line on environmental and water conservation sensitivity.

[0044] In step S400 of this embodiment, based on the calculation of the sensitive risk level, due to changes in construction activities, the environmental protection and water conservation sensitive parameters affected by these activities will also be in a state of change. Therefore, the sensitive risk level should also be in a state of change. Specifically, the changes in the sensitive risk level caused by dynamic changes in construction need to be considered. Specifically, the line intersection information is dynamically updated according to the construction period of each sensitive inspection area. The updated line intersection information is used to determine the protection adjustment coefficient of the sensitive inspection area in real time. This means that after certain changes in construction activities during different construction periods, it is necessary to re-collect and determine the line intersection information (overlap length, overlap position, and overlap method) to update the line intersection information dynamically in a timely manner. The updated line intersection information is then re-analyzed to obtain the updated protection adjustment coefficient. The updated protection adjustment coefficient is then combined with the corresponding protection level parameters to calculate the sensitive risk level, which serves as the latest basis for sensitive risk early warning.

[0045] Considering that dynamic updates are initiated based on changes in construction phases, and these changes are generally accompanied by changes in the construction progress along the construction route, it is possible to determine whether the construction phase has entered the next stage by monitoring changes in the construction route. For example... Figure 5 As shown, the specific steps for updating the corresponding line crossing information based on the construction phase of each sensitive inspection area include: S440: Determine the set of triggering conditions for dynamic updates to the sensitive inspection area, and calculate the change parameters of the construction scope of the current construction phase compared to the construction scope of the previous construction phase. The set of triggering conditions includes at least one of the following: change in overlap length, change in overlap position, and change in overlap method. Specifically, it includes: Collect the spatial overlap information of the current construction phase in the current sensitive inspection area to obtain the line crossover information of the current construction phase in the current sensitive inspection area; compare the overlap length, overlap position and overlap method in the line crossover information of the current construction phase in the current sensitive inspection area with the overlap length, overlap position and overlap method in the line crossover information of the previous construction phase to obtain the change in overlap length, overlap position and overlap method.

[0046] In this embodiment, the change in overlapping position specifically refers to the change in the centroid or area of ​​the overlapping portion of the line in the sensitive inspection area during the current construction phase compared to the centroid or area of ​​the overlapping portion of the line in the sensitive inspection area during the previous construction phase. The calculation process is as follows: (1) Define the core and edge of the sensitive patrol area: Create one or more buffers for sensitive patrol areas, for example: Core area: A restricted area within the sensitive patrol zone.

[0047] Buffer / Edge Area: An area that extends outward from the sensitive patrol area by a certain distance.

[0048] (2) Calculate the overlap between the construction lines of the previous and current phases and each zone: Using the Intersect tool in GIS, calculate the following for each phase: A: The portion of the previous construction route overlapping with the core area; B: The portion of the previous construction route overlapping with the edge area; C: The portion of the current construction route overlapping with the core area; D: The portion of the current construction route overlapping with the edge area.

[0049] (3) Quantify the change in position: Center of gravity displacement method: Calculate the geometric center of gravity of A and C respectively; calculate the Euclidean distance between the two centers of gravity; if this distance exceeds a preset threshold (such as 50 meters), it is determined that "the overlapping position has changed", and the amount of change is the distance value.

[0050] The area variation method involves calculating the area difference between C and A separately (for line objects, this usually involves calculating the length difference). If the difference (absolute value) exceeds a preset threshold, an update is triggered. This difference itself is a quantitative indicator.

[0051] In this embodiment, the change in overlap pattern specifically refers to the change in the length-density ratio or curvature of the overlapping portion of the line in the sensitive inspection area during the current construction phase compared to the length-density ratio or curvature of the overlapping portion of the line in the sensitive inspection area during the previous construction phase. The calculation process is as follows: (1) Spatial pattern recognition: Calculate the number of intersections: Use GIS tools to perform geometric analysis on the overlapping areas between the construction route and the sensitive patrol area. Calculate the number of times the construction route crosses the boundary of the sensitive patrol area.

[0052] Calculate the number of overlapping sections: The construction line may overlap with a sensitive inspection area in multiple discontinuous sections. Calculate the number of these continuous overlapping sections.

[0053] Morphology type determination: Classifies the geometric shape of overlapping parts into patterns. This is a type variable, not a continuous numerical value. The trigger condition is a change in morphology type.

[0054] (2) Computational complexity index: Calculate the change in the ratio of construction line length density between the previous and current phases. An increase in this ratio indicates an increase in the intensity of disturbance per unit area.

[0055] Calculate the change in the curvature of the construction line between the previous and current phases. Increased curvature means the line stays in sensitive inspection areas longer, resulting in a longer period of disturbance. Use the above indicators to represent the quantitative measure of the change in overlap pattern.

[0056] Furthermore, in step S440, one or more conditions that can trigger dynamic updates are set for the corresponding sensitive inspection area, thus forming a trigger condition set. This trigger condition set is mainly established around changes in the construction route, such as changes in the overlap length between the construction route and the sensitive inspection area (the construction route grows or shortens), changes in the overlap position (the construction route extends from the edge into the hinterland or from high terrain into low terrain), and changes in the overlap method (single / multiple route overlap or straight / curved interweaving). Any change in any of these parameters reaching a preset value is sufficient. Therefore, the trigger condition set can include at least one of the changes in overlap length, overlap position, and overlap method. By comparing the impact range of the construction route (i.e., the construction range) of the current construction period with that of the previous construction period, the change parameters between the two construction periods are analyzed for subsequent judgment steps. It should be noted that a construction period is a point in time within a certain construction cycle. This point in time can be measured in minutes, hours, or days (any time of day is acceptable). For example, a construction cycle is 30 days. The interval between the current construction period and the previous construction period is 30 days. The construction scope at the point in time calculated based on the interval between the two periods can be used as the basis for calculation.

[0057] S450: Determine whether any condition in the trigger condition set is met based on the changes in parameters such as overlap length, overlap position, and overlap method. If met, the line crossing information is dynamically updated. This involves using the changes in the construction area calculated at two time points (at least one of the changes in overlap length, overlap position, and overlap method) to determine if a preset value (actual empirical value) has been reached. If any condition is met, the line crossing information is dynamically updated, i.e., the line crossing information is recalculated. Specifically, if at least one of the changes in overlap length, overlap position, and overlap method reaches a preset value, the line crossing information of the current sensitive inspection area is updated to the line crossing information of the current construction period. Then, proceed to step S410 to match the overlap length, overlap position, and overlap method in the current sensitive inspection area's line crossing information with a preset lookup table.

[0058] The above steps pre-set a set of trigger conditions for dynamic updates of sensitive inspection areas. Based on the changes in parameters of the construction scope between construction periods (including changes in overlap length, location, and method), the system analyzes and determines whether dynamic updates of line intersection information are needed. That is, when any change parameter reaches a preset value, the dynamic update process is initiated, the line intersection information is recalculated, and the sensitivity risk level of the affected area is assessed. This not only accurately captures the changes in the environmental impact of construction progress but also ensures the real-time nature and accuracy of environmental and water conservation risk management data, effectively improving the pertinence and response speed of environmental protection measures.

[0059] Since the progress of construction routes generally follows or fluctuates around the construction plan, there may be temporary changes to the construction plan (due to various factors). In this case, there are two situations for defining the change of construction period: one is the construction period sequence determined by a fixed cycle according to the predetermined construction plan, and the other is the construction period sequence determined by an indefinite cycle according to a temporary emergency plan. The calculation methods for construction period are different in the two situations. Specifically, the dynamic update includes two situations: fixed-period dynamic update (dynamic update calculation mode with fixed interval cycle) and emergency dynamic update (dynamic update calculation mode with sudden indefinite interval cycle). If the update is a fixed-period dynamic update: the time span between the current construction period and the previous construction period is determined based on the construction plan information. This means the time interval between two construction periods can be determined according to the established construction plan information, which can be a fixed interval (e.g., 30 days) or a variable interval (e.g., one phase is 20 days, another is 40 days), etc. The construction plan information refers to the pre-set construction schedule information during the construction process, which is determined by the planning before the project starts.

[0060] In the case of sudden dynamic updates: the time span between the current construction phase and the previous construction phase is determined based on the time point of the last dynamic update in the stored information. This means that the sudden changes in construction progress (such as decisions made at temporary meetings) have not proceeded according to the expected construction schedule. In this case, the time span between the current construction phase and the previous construction phase needs to be determined based on the information already recorded in the background system, i.e., based on the stored information.

[0061] By introducing two modes of dynamic update—fixed-term and emergency dynamic update—the system flexibly addresses both scenarios where construction progress is executed according to plan or adjusted due to unforeseen events. In the fixed-term dynamic update mode, the system automatically calculates and updates the construction scope data between each construction period based on the fixed or variable cycles in the established construction plan. In the emergency dynamic update mode, the system records and processes the impact of temporary changes on the construction scope in real time based on changes in actual construction progress, ensuring the accuracy and real-time nature of the data used for analysis.

[0062] In addition, based on the above technical solutions, sudden dynamic updates are highly unpredictable. In this case, the data already collected in the system may be separated from the current construction period by one or more construction cycles. When it is one construction cycle, the previous construction period may be the time point of a fixed-period dynamic update. If it is multiple construction cycles, there may be a sudden dynamic update time point in between that was not collected in time. In this case, the previous construction period may be the time point of a fixed-period dynamic update that is separated by multiple cycles. Therefore, in this case, the time point calculated in the system for the current construction period and the previous construction period may be the time point of a fixed-period dynamic update or the time point of a sudden dynamic update. Both of these situations can be used to calculate the parameters of change in the construction scope.

[0063] In accordance with the above description, for sudden dynamic updates: the time point of the last dynamic update in the stored information can be either the time point determined based on the construction plan information or the time point of the last sudden dynamic update. Either way, it can be used in the calculation of the construction scope change parameters. Specifically, if the previous construction period was a fixed-period dynamic update, then the time and construction scope information at that time can be routinely recorded in the system. If the previous construction period was a sudden dynamic update, then the time and construction scope information at that time can be temporarily added to the system record (requiring the inclusion of corresponding monitoring data for the construction area at that time). The current construction period is simply the time point of the current data collection. It should be noted that in actual operation, for sudden dynamic updates, after calculating the construction scope change parameters, the relevant data of the sudden dynamic update time point of the current construction period needs to be recorded in the system.

[0064] In step S410 of this embodiment, since the first, second, and third coefficients are obtained through empirical interval comparison, they are mainly calculated based on the line intersection information collected during the current construction period when calculating the protection adjustment coefficient. Because the current construction period differs from the previous construction period in terms of the range of the construction line, and this change may be drastic or subtle, relying solely on the three coefficients obtained through empirical interval comparison to calculate the protection adjustment coefficient may overlook this degree of change. This results in the actual protection adjustment coefficient deviating from the basis of the previous (previous construction period) protection adjustment parameters, leading to a greater deviation in the environmental protection construction response analysis results. To address this problem, in this embodiment, the change in the protection adjustment coefficient between two construction periods is taken into consideration to correct the calculation of the latest protection adjustment coefficient. For example... Figure 4 As shown, the following steps are included after step S410: S420: Calculate the total ratio of the protection adjustment coefficients before and after the dynamic update. Based on this total ratio, determine a correction coefficient. Then, compare the protection adjustment coefficients calculated for the current construction phase with those calculated for the previous construction phase. Specifically, calculate the ratio of change in the protection adjustment coefficients before and after the dynamic update, using this as the total ratio. Based on this total ratio, determine a correction coefficient. This correction coefficient can also be determined empirically; for example, the larger the total ratio, the larger the correction coefficient. Then, recalculate the protection adjustment coefficients after the dynamic update. Therefore, step S430 is adjusted as follows: S430: The correction coefficient is combined with the first coefficient, the second coefficient, and the third coefficient to calculate the correction protection adjustment coefficient. This can be done using the same calculation method as described above (summation / weighted summation, mean / weighted mean are all acceptable). This correction protection adjustment coefficient is used as the protection adjustment coefficient assigned to the corresponding protection level parameter, and thus participates in the calculation process of the final sensitive risk level.

[0065] Step S420 introduces a correction coefficient, incorporating the ratio of the change in the protection adjustment coefficient between the current and previous construction phases into the calculation. This dynamically corrects the latest protection adjustment coefficient, effectively addressing the issue that relying solely on empirical interval comparison coefficients might overlook changes in the construction route range. Specifically, by comparing and analyzing the changes in the protection adjustment coefficients between two construction phases, a correction coefficient is determined and included in the combined calculation. This ensures that the corrected protection adjustment coefficient more closely reflects actual changes, thereby improving the accuracy and continuity of environmental and water conservation sensitivity assessments and reducing the deviation of the analysis results. Based on this, the calculation of the total ratio variable primarily relies on the line intersection information used to determine the protection adjustment coefficient, specifically calculated through overlap length, overlap position, and overlap method. For example... Figure 6 As shown, step S420 specifically includes: S421: Calculate the first ratio variable of the overlap length information before and after dynamic update; calculate the second ratio variable of the overlap position information before and after dynamic update; calculate the third ratio variable of the overlap mode information before and after dynamic update; specifically, calculate the change ratio of the overlap length, overlap position and overlap mode of the line crossing information of the current construction period in the current sensitive inspection area compared with the overlap length, overlap position and overlap mode of the line crossing information of the previous construction period, and obtain the first ratio variable corresponding to the overlap length, the second ratio variable corresponding to the overlap position and the third ratio variable corresponding to the overlap mode; The above steps compare and analyze the overlap length, overlap position, and overlap method information collected in the current construction phase and the previous construction phase. Specifically, they calculate the change ratio of overlap length before and after the dynamic update (as the first ratio variable), the change ratio of overlap position information (as the second ratio variable), and the change ratio of overlap method information (as the third ratio variable). These three ratio variables are then combined to calculate the total ratio variable. It should be noted that when calculating the change ratios of overlap length, overlap position, and overlap method separately, the total percentage change before and after can be obtained by calibrating base points within the same map coordinate system.

[0066] S422: Combine the first, second, and third ratio variables to obtain the total ratio variable, and match the correction coefficient corresponding to the total ratio variable; In this embodiment, when calculating the first, second, and third ratio variables together, the total ratio variable is calculated by weighted averaging of the first, second, and third ratio variables. Since the environmental sensitivity impact caused by changes in overlap length is greater than that caused by changes in overlap position, which in turn is greater than that caused by changes in overlap pattern, different weighting ratios need to be set during weighting. The setting rules are as follows: when calculating the total ratio variable, the calculation weight of the first ratio variable is greater than the calculation weight of the second ratio variable, and the calculation weight of the second ratio variable is greater than the calculation weight of the third ratio variable.

[0067] Through the above steps, the change ratios of overlap length, overlap position, and overlap method information before and after dynamic updates (first ratio variable, second ratio variable, and third ratio variable) are calculated respectively. Based on their different degrees of impact on environmental and water conservation sensitivity, weighting ratios are set, and finally, the total ratio variable is calculated by weighting, so as to more accurately reflect the comprehensive impact of changes in the construction line range.

[0068] Furthermore, this embodiment also proposes a spatial analysis-based system for analyzing environmental and water conservation issues in power transmission and transformation projects, including a processor and a computer-readable storage medium. The computer-readable storage medium stores a computer program, which is executed by the processor to implement the steps of the spatial analysis-based method for analyzing environmental and water conservation issues in power transmission and transformation projects described in this embodiment. Figure 7 As shown, the system is divided into functional modules according to the embodiments of the above method. For example, it can be divided into individual functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation. For example, in the case of dividing each functional module according to its corresponding function, Figure 7The diagram shown is only a schematic of a system / device. The power transmission and transformation engineering environmental and water conservation problem analysis system 500 based on spatial analysis may include a first acquisition unit 510, a first processing unit 520, a first identification unit 530, and a second processing unit 540. The functions of each unit module are described below.

[0069] The first acquisition unit 510 is used to acquire the associated geographical area of ​​the construction route, divide the associated geographical area into sensitive areas based on the environmental protection and water conservation sensitivity type, and obtain multiple sensitive inspection areas. In some embodiments, the first acquisition unit 510 is also used to identify the coordinate set of the construction route based on GIS, delineate several initial subdivision areas with the key point coordinates in the construction route coordinate set as the center and a specified distance as the radius, merge several of the initial subdivision areas into the associated geographical area, wherein the specified distance is no greater than three kilometers; divide the associated geographical area into cells to obtain multiple cell areas, identify environmental protection and water conservation sensitivity factors in each cell area to obtain environmental protection and water conservation sensitivity information; merge cell areas with environmental protection and water conservation sensitivity information similarity exceeding a preset similarity into the sensitive inspection area. It is also used to assign a merging mark to cell areas with environmental protection and water conservation sensitivity information similarity exceeding a preset similarity, determine the distance between cell areas assigned the same merging mark, and merge cell areas with a distance not greater than a preset distance into the sensitive inspection area; wherein, multiple merging marks exist in the same cell area to serve as the basis for merging different sensitive inspection areas.

[0070] The first processing unit 520 is used to extract the sensitivity type information of each of the sensitive patrol areas and determine the protection level parameters of the sensitive patrol area based on the sensitivity type information; The first identification unit 530 is used to identify the construction line intersection space of each of the sensitive inspection areas to obtain the line intersection information of the sensitive inspection area, wherein the line intersection information includes the overlap length, overlap position and overlap method. The second processing unit 540 is used to determine the protection adjustment coefficient based on the line crossing information of the sensitive patrol area, assign the protection adjustment coefficient to the protection level parameter corresponding to the sensitive patrol area, obtain the sensitivity risk level of the sensitive patrol area, and issue an early warning for the environmental and water protection risks of the sensitive patrol area based on the sensitivity risk level; wherein, the line crossing information is dynamically updated according to the construction period of each sensitive patrol area, and the protection adjustment coefficient of the sensitive patrol area is determined in real time based on the updated line crossing information. In some embodiments, the first acquisition unit 510 is also used to determine the trigger condition set for the dynamic update of the sensitive patrol area, calculate the change parameter of the construction range of the current construction period compared to the construction range of the previous construction period, and determine whether any condition in the trigger condition set is met based on the change parameter; if it is met, the line crossing information is dynamically updated. The system is also used to obtain overlap length information, determine a first coefficient based on the overlap length information, obtain overlap position information, determine a second coefficient based on the overlap position information, obtain overlap mode information, determine a third coefficient based on the overlap mode information, and combine the first coefficient, the second coefficient, and the third coefficient into the protection adjustment coefficient; wherein the specific values ​​of the first coefficient, the second coefficient, and the third coefficient are determined according to a preset lookup table. It is also used to calculate the total ratio of the protection adjustment coefficients before and after dynamic updates, determine a correction coefficient based on the total ratio, combine the correction coefficient with the first coefficient, the second coefficient, and the third coefficient to calculate a corrected protection adjustment coefficient, and use this corrected protection adjustment coefficient as the protection adjustment coefficient assigned to the corresponding protection level parameter. And a first ratio variable for calculating the overlap length information before and after dynamic update; a second ratio variable for calculating the overlap position information before and after dynamic update; a third ratio variable for calculating the overlap mode information before and after dynamic update; and a total ratio variable for calculating the total ratio variable based on the first ratio variable, the second ratio variable, and the third ratio variable; wherein when calculating the total ratio variable, the calculation weight of the first ratio variable is greater than the calculation weight of the second ratio variable, and the calculation weight of the second ratio variable is greater than the calculation weight of the third ratio variable.

[0071] In the above embodiments, the more specific working processes of each functional unit can be referred to the corresponding content disclosed in the foregoing method embodiments. Furthermore, each functional unit can be implemented entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0072] This application describes embodiments of methods, apparatus (systems), and computer program products according to embodiments of this application with reference to flowchart illustrations and / or block diagrams. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0073] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0074] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0075] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for analyzing water and environmental protection problems in power transmission and transformation projects based on spatial analysis, characterized in that, The method comprises the following steps: obtaining an associated geographical area of a construction line, dividing the associated geographical area into sensitive areas to obtain sensitive patrol areas corresponding to different sensitive types; determining a protection level parameter of each sensitive patrol area according to the sensitive type of each sensitive patrol area; collecting spatial intersection overlap conditions of the construction line and each sensitive patrol area to obtain line intersection information of each sensitive patrol area, wherein the line intersection information comprises an overlap length, an overlap position and an overlap mode of the construction line and the sensitive patrol area; calculating a protection adjustment coefficient of each sensitive patrol area according to the line intersection information of each sensitive patrol area, assigning the protection adjustment coefficient of each sensitive patrol area to the corresponding protection level parameter to obtain a sensitive risk level of each sensitive patrol area, and prewarning a water conservation risk of each sensitive patrol area according to the sensitive risk level, and updating the line intersection information of each sensitive patrol area according to a construction period of each sensitive patrol area to re-determine the protection adjustment coefficient of each sensitive patrol area.

2. The method according to claim 1, wherein, When the associated geographical area of the construction line is obtained, the construction line coordinate set is obtained, and each key point coordinate in the construction line coordinate set is taken as the center and a specified distance as the radius to demarcate an initial division area corresponding to each key point coordinate, and then all the initial division areas are merged to obtain the associated geographical area of the construction line.

3. The method according to claim 1, wherein, When the associated geographical area is divided into sensitive areas, the following steps are included: performing cell division on the associated geographical area, obtaining basic geographical data and ecological environment data of each cell, determining and scoring the sensitivity of the basic geographical data and the ecological environment data of each cell to obtain sensitive type information of each cell; selecting cells two by two and calculating the similarity of the sensitive type information of the selected cells, assigning the same merging mark to the cells with a similarity of the sensitive type information greater than a preset similarity, and retaining all merging marks if a cell is assigned with multiple merging marks; if the distance between different cells assigned with the same merging mark is less than or equal to a preset distance, the cells are merged into a sensitive patrol area.

4. The method according to claim 1, wherein, When the protection adjustment coefficient of each sensitive patrol area is calculated according to the line intersection information of each sensitive patrol area, the following steps are included: matching the overlap length, overlap position and overlap mode in the line intersection information of the current sensitive patrol area with a preset control table to obtain a first coefficient corresponding to the overlap length, a second coefficient corresponding to the overlap position and a third coefficient corresponding to the overlap mode, and combining and calculating the first coefficient, the second coefficient and the third coefficient to obtain the protection adjustment coefficient of the current sensitive patrol area.

5. The method according to claim 4, wherein, The step of updating the line intersection information of each sensitive patrol area according to the construction period of each sensitive patrol area specifically includes: collecting spatial intersection overlap conditions of the current construction period of the current sensitive patrol area to obtain line intersection information of the current construction period of the current sensitive patrol area; comparing the overlap length, overlap position and overlap mode in the line intersection information of the current construction period of the current sensitive patrol area with the overlap length, overlap position and overlap mode in the line intersection information of the last construction period to obtain an overlap length change amount, an overlap position change amount and an overlap mode change amount; If at least one of the overlap length variation, the overlap position variation and the overlap mode variation reaches a preset value, the line crossing information of the current sensitive patrol area is updated to the line crossing information of the current construction period, and the step of matching the overlap length, the overlap position and the overlap mode in the line crossing information of the current sensitive patrol area with the preset reference table is performed.

6. The method according to claim 5, wherein, The current construction period and the previous construction period are respectively a current time point and a previous time point in a preset construction plan or a temporary emergency plan.

7. The method according to claim 5, wherein the method is characterized by, The overlap position variation is specifically a variation of a barycenter or an area of an overlapping part of the line in the current construction period in the sensitive patrol area compared with a barycenter or an area of an overlapping part of the line in the previous construction period in the sensitive patrol area. The overlap mode variation is specifically a variation of a length density ratio or a bending degree of an overlapping part of the line in the current construction period in the sensitive patrol area compared with a length density ratio or a bending degree of an overlapping part of the line in the previous construction period in the sensitive patrol area.

8. The method according to claim 5, wherein the method is characterized by, After matching the overlap length, the overlap position and the overlap mode in the line crossing information of the current sensitive patrol area with the preset reference table, the method further includes: calculating variation ratios of the overlap length, the overlap position and the overlap mode of the line crossing information of the current construction period in the current sensitive patrol area compared with the overlap length, the overlap position and the overlap mode of the line crossing information of the previous construction period, to obtain a first ratio variable corresponding to the overlap length, a second ratio variable corresponding to the overlap position and a third ratio variable corresponding to the overlap mode; merging and calculating the first ratio variable, the second ratio variable and the third ratio variable to obtain a total ratio variable, and matching a correction coefficient corresponding to the total ratio variable; merging and calculating the correction coefficient corresponding to the current sensitive patrol area with the first coefficient, the second coefficient and the third coefficient to obtain a protection adjustment coefficient of the current sensitive patrol area.

9. The method according to claim 8, wherein the method is characterized by, When merging and calculating the first ratio variable, the second ratio variable and the third ratio variable, the first ratio variable, the second ratio variable and the third ratio variable are calculated to obtain the total ratio variable by means of weighted average, and a calculation weight of the first ratio variable is greater than a calculation weight of the second ratio variable, and a calculation weight of the second ratio variable is greater than a calculation weight of the third ratio variable.

10. A power transmission and transformation project water environment protection problem analysis system based on spatial analysis, characterized in that, The method comprises a processor and a computer readable storage medium, the computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the steps of the power transmission and transformation project water conservation problem analysis method based on spatial analysis in any one of claims 1-9.

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