Water conservancy project topographic survey and evaluation system based on multi-source data information

Abstract

The invention discloses a water conservancy project topographic survey evaluation system based on multi-source data information, and relates to the technical field of water conservancy exploration, the system comprises a topographic survey center, the topographic survey center is connected with a data acquisition module, a data processing module, a model construction module and a water conservancy evaluation module; the method comprises the following steps: analyzing topographic data and hydrological data in a target area to obtain corresponding topographic vector features and hydrological vector features, analyzing a public area where the topographic vector features and the hydrological vector features are located, and judging the correlation between the hydrological data and the topographic data in the public area. And then specific data analysis is carried out on the public areas with relevance, the risk of the public areas is judged, and water conservancy key points are marked according to a risk judgment result, so that corresponding reference is provided for subsequent water conservancy projects.

Description

Technical Field

[0001] This invention relates to the field of water conservancy exploration technology, specifically a water conservancy engineering topographic survey and evaluation system based on multi-source data information. Background Technology

[0002] Water conservancy projects have extremely high requirements for topographic survey and assessment. Accurate topographic information is the foundation for ensuring the safe and efficient implementation of the project. In the past, assessment systems were based on a single data source and lacked comprehensive analysis of information from multiple aspects. This made it difficult to accurately reflect the true state of the topography, resulting in deviations in the guidance for project site selection, design and construction, and increasing the risks and costs of project construction. How to evaluate the correlation between topographic and hydrological data within the target area based on the obtained multi-source data information, so as to better assist the subsequent water conservancy projects, is a problem we need to solve. To this end, we now provide a water conservancy project topographic survey and evaluation system based on multi-source data information. Summary of the Invention

[0003] The purpose of this invention is to provide a topographic survey and evaluation system for water conservancy projects based on multi-source data information.

[0004] The objective of this invention can be achieved through the following technical solution: a water conservancy engineering topographic survey and evaluation system based on multi-source data information, including a topographic survey center, wherein the topographic survey center is connected to a data acquisition module, a data processing module, a model building module, and a water conservancy evaluation module; The data acquisition module is used to acquire topographic and hydrological data within the target area; The model building module is used to construct a corresponding regional planar elevation map based on the target region; The data processing module is used to process the obtained topographic and hydrological data and generate corresponding topographic and hydrological vector features in the regional planar elevation map; The water conservancy assessment module is used to assess the correlation between hydrological data and topographic data within the target area based on the obtained regional planar elevation map, and to mark key water conservancy nodes within the target area on the regional planar elevation map based on the assessment results.

[0005] Furthermore, the terrain data includes geographic coordinates, elevation data corresponding to each geographic coordinate, and geological type; The hydrological data includes the water area coverage, water flow direction, and water flow velocity.

[0006] Furthermore, the process by which the model building module constructs a corresponding regional planar elevation map based on the target region includes: Based on the distribution of the target area, a corresponding regional planar model is constructed. Based on the elevation data corresponding to each geographic coordinate in the target area, a corresponding elevation model is constructed. The elevation model is then projected onto the regional planar model to obtain a regional planar elevation map corresponding to the target area.

[0007] Furthermore, the data processing module processes the acquired terrain data to obtain terrain vector features, including the following steps: The regional elevation map is divided into several unit regions. Based on the geological type corresponding to each geographic coordinate, a corresponding geological label is generated within the corresponding unit region. Simultaneously, the elevation data within each unit region is normalized, and the normalized result is used as the elevation data of the center point within each unit region. Using any given unit region as the reference region, obtain other unit regions adjacent to the reference region, and denot them as reference regions; Obtain the elevation difference between the center point of the benchmark area and the center point of the reference area; Based on the obtained elevation difference, the terrain vector features between the center point of the benchmark area and the center point of the reference area are generated.

[0008] Furthermore, the data processing module processes the acquired hydrological data to obtain the corresponding hydrological vector features, including: Based on the water area coverage in the obtained hydrological data, generate corresponding water area labels within the corresponding unit area in the regional planar elevation map; Hydrological vector features are generated based on the water flow direction and velocity within each unit area, where the water flow direction is the direction of the hydrological vector feature and the water flow velocity is the length of the hydrological vector feature.

[0009] Furthermore, the process by which the water conservancy assessment module evaluates the correlation between hydrological data and topographic data within the target area based on the obtained regional planar elevation map includes: The unit region with hydrological vector characteristics is denoted as the water unit region; Traverse each water unit region and obtain whether there is a geological label in each water unit region. If there is a geological label, mark the corresponding unit region as a water-land related region. Obtain the topographic vector features of each water-land inter-region; If the unit region where the center point of the reference area of ​​the topographic vector feature is located has hydrological vector features, then the corresponding topographic vector feature is marked as a topographic associated feature; Based on the vector length corresponding to the topographic association feature and the angle between the direction of the topographic association feature and the direction of water flow in the corresponding water-land association area, the correlation coefficient between hydrological data and topographic data in the water-land association area is obtained; Set the correlation coefficient threshold; The obtained correlation coefficient is compared with the correlation coefficient threshold range. When the correlation coefficient exceeds the set correlation coefficient threshold, it indicates that there is a correlation between the hydrological data and the topographic data in the corresponding water-land correlation area. Otherwise, there is no correlation.

[0010] Furthermore, the process by which the water conservancy assessment module marks key water conservancy nodes within the target area on the regional plane elevation map based on the assessment results includes: Based on the water flow velocity in the water-land associated area and the vector length corresponding to the topographic features associated with that water-land associated area, the risk coefficient Fx of the water-land associated area is obtained. Set a risk threshold F0; When Fx≥F0, the corresponding water-land related area is marked as a key water conservancy node; otherwise, it is not marked. Key water conservancy nodes are mapped to their corresponding locations on the regional planar elevation map.

[0011] Compared with the prior art, the beneficial effects of the present invention are: By analyzing the topographic and hydrological data within the target area, corresponding topographic and hydrological vector features are obtained. Then, the common areas where the topographic and hydrological vector features are located are analyzed to determine the correlation between the hydrological and topographic data within the common areas. Specific data analysis is then conducted on the common areas with correlation to determine the risk of the common areas. Based on the risk assessment results, key water conservancy points are marked, thus providing a corresponding reference for the subsequent water conservancy projects. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0014] like Figure 1As shown, the water conservancy project topographic survey and evaluation system based on multi-source data information includes a topographic survey center, which is connected to a data acquisition module, a data processing module, a model building module, and a water conservancy evaluation module. The data acquisition module is used to acquire topographic and hydrological data within the target area; The model building module is used to construct a corresponding regional planar elevation map based on the target region; The data processing module is used to process the obtained topographic and hydrological data and generate corresponding topographic and hydrological vector features in the regional planar elevation map; The water conservancy assessment module is used to assess the correlation between hydrological data and topographic data within the target area based on the obtained regional planar elevation map, and to mark key water conservancy nodes within the target area on the regional planar elevation map based on the assessment results.

[0015] It should be further explained that, in the specific implementation process, the terrain data includes geographic coordinates, elevation data corresponding to each geographic coordinate, and geological type, which includes rock, hard soil, and soft soil. The hydrological data includes the water area coverage, water flow direction, and water flow velocity.

[0016] It should be further explained that, in the specific implementation process, the process by which the model building module constructs the corresponding regional planar elevation map based on the target area includes: Based on the distribution of the target area, a corresponding regional planar model is constructed. Based on the elevation data corresponding to each geographic coordinate in the target area, a corresponding elevation model is constructed. The elevation model is then projected onto the regional planar model to obtain a regional planar elevation map corresponding to the target area.

[0017] It should be further explained that, in the specific implementation process, the data processing module processes the acquired terrain data to obtain terrain vector features, including the following steps: The regional elevation map is divided into several unit regions. Based on the geological type corresponding to each geographic coordinate, a corresponding geological label is generated within the corresponding unit region. Simultaneously, the elevation data within each unit region is normalized, and the normalized result is used as the elevation data of the center point within each unit region. It should be further explained that, in the specific implementation process, the normalization process for the elevation data within the unit region is as follows: Obtain the maximum, minimum, and mean elevation data within the unit area; Based on the maximum, minimum and mean values ​​in the obtained elevation data, the normalized values ​​corresponding to the unit area are obtained; , in, The maximum value in the elevation data, The minimum value in the elevation data, This is the mean value in the elevation data.

[0018] Using any given unit region as the reference region, obtain other unit regions adjacent to the reference region, and denot them as reference regions; Obtain the elevation difference between the center point of the benchmark area and the center point of the reference area; Based on the obtained elevation difference, a terrain vector feature between the center point of the reference area and the center point of the reference area is generated. It should be further explained that when the elevation difference is negative, a vector from the center point of the reference area to the center point of the reference area is generated, and the absolute value of the corresponding elevation difference is used as the length of the vector. When the elevation difference is not negative, a vector from the center point of the reference area to the center point of the reference area is generated, and the corresponding elevation difference is used as the length of the vector.

[0019] It should be further explained that, in the specific implementation process, the data processing module processes the acquired hydrological data to obtain the corresponding hydrological vector features, including: Based on the water area coverage in the obtained hydrological data, generate corresponding water area labels within the corresponding unit area in the regional planar elevation map; Hydrological vector features are generated based on the water flow direction and water flow velocity within each unit area, where the water flow direction is the direction of the hydrological vector feature and the water flow velocity is the length of the hydrological vector feature. The obtained hydrological vector features are mapped to the corresponding cell regions.

[0020] It should be further explained that, in the specific implementation process, the process by which the water conservancy assessment module evaluates the correlation between hydrological data and topographic data within the target area based on the obtained regional planimetric map includes: The unit region with hydrological vector characteristics is denoted as the water unit region; Traverse each water unit region and obtain whether there is a geological label in each water unit region. If there is a geological label, mark the corresponding unit region as a water-land related region. The obtained water-land related areas are labeled and denoted as j, where j = 1, 2, ..., m, and m is an integer; The water flow velocity within the land-water inter-region labeled j is denoted as... And obtain the topographic vector features of the water-land associated area labeled j; it should be noted that the obtained topographic vector features are the topographic vector features of the reference area with the center point of the water-land associated area as the center point of the reference area; If the unit region where the center point of the reference area of ​​the topographic vector feature is located has hydrological vector features, then the corresponding topographic vector feature is marked as a topographic associated feature; Each terrain-related feature is labeled and denoted as k, where k = 1, 2, ..., s, and s is an integer; Then the vector length corresponding to the terrain association feature labeled k is denoted as ; The angle between the direction of the topographic feature labeled k and the direction of water flow within the corresponding land-water region is denoted as k. ; The correlation coefficient between hydrological data and topographic data within the water-land inter-region is then obtained, denoted as . ,in: ; in For correction coefficients, This represents the water flow velocity of the water unit region corresponding to the center point of the reference region, with the center point of the water-land relationship region labeled j as the center point of the reference region. Set the correlation coefficient threshold; The obtained correlation coefficient is compared with the correlation coefficient threshold range. When the correlation coefficient exceeds the set correlation coefficient threshold, it indicates that there is a correlation between the hydrological data and the topographic data in the corresponding water-land correlation area. Otherwise, there is no correlation.

[0021] It should be further explained that, in the specific implementation process, the process by which the water conservancy assessment module marks the key water conservancy nodes within the target area on the regional plane elevation map based on the assessment results includes: The interconnected water and land areas are labeled as i, where i = 1, 2, ..., n, and n is an integer; Let the water flow velocity of the land-water inter-region labeled i be denoted as . ; The vector length corresponding to the topographic features of the water-land associated region is denoted as . ; The risk coefficient of the water-land inter-region is then obtained, denoted as Fx, where: ; Where m1 and m2 are weight coefficients, and m1 is related to the geological type corresponding to the geological label of the water-land associated area, that is, different geological types correspond to different weight coefficients; Set a risk threshold F0; When Fx≥F0, the corresponding water-land related area is marked as a key water conservancy node; otherwise, it is not marked. Map key water conservancy nodes to their corresponding locations on the regional planar elevation map; If two key water conservancy nodes are adjacent, then the two key water conservancy nodes will be merged.

[0022] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any modifications or equivalent substitutions made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water conservancy project topographic survey and evaluation system based on multi-source data information, including a topographic survey center, characterized in that, The topographic survey center is connected to a data acquisition module, a data processing module, a model building module, and a water conservancy assessment module. The data acquisition module is used to acquire topographic and hydrological data within the target area; The model building module is used to construct a corresponding regional planar elevation map based on the target region; The data processing module is used to process the obtained topographic and hydrological data and generate corresponding topographic and hydrological vector features in the regional planar elevation map; The water conservancy assessment module is used to assess the correlation between hydrological data and topographic data within the target area based on the obtained regional planar elevation map, and to mark key water conservancy nodes within the target area on the regional planar elevation map based on the assessment results.

2. The water conservancy engineering topographic survey and evaluation system based on multi-source data information according to claim 1, characterized in that, The terrain data includes geographic coordinates, elevation data corresponding to each geographic coordinate, and geological type; The hydrological data includes the water area coverage, water flow direction, and water flow velocity.

3. The water conservancy engineering topographic survey and evaluation system based on multi-source data information according to claim 2, characterized in that, The process by which the model building module constructs a corresponding regional planar elevation map based on the target region includes: Based on the distribution of the target area, a corresponding regional planar model is constructed. Based on the elevation data corresponding to each geographic coordinate in the target area, a corresponding elevation model is constructed. The elevation model is then projected onto the regional planar model to obtain a regional planar elevation map corresponding to the target area.

4. The water conservancy project topographic survey and evaluation system based on multi-source data information according to claim 3, characterized in that, The data processing module processes the acquired terrain data to obtain terrain vector features, including the following process: The regional elevation map is divided into several unit regions. Based on the geological type corresponding to each geographic coordinate, a corresponding geological label is generated within the corresponding unit region. Simultaneously, the elevation data within each unit region is normalized, and the normalized result is used as the elevation data of the center point within each unit region. Using any given unit region as the reference region, obtain other unit regions adjacent to the reference region, and denot them as reference regions; Obtain the elevation difference between the center point of the benchmark area and the center point of the reference area; Based on the obtained elevation difference, the terrain vector features between the center point of the benchmark area and the center point of the reference area are generated.

5. The water conservancy engineering topographic survey and evaluation system based on multi-source data information according to claim 4, characterized in that, The data processing module processes the acquired hydrological data to obtain the corresponding hydrological vector features, including the following steps: Based on the water area coverage in the obtained hydrological data, generate corresponding water area labels within the corresponding unit area in the regional planar elevation map; Hydrological vector features are generated based on the water flow direction and velocity within each unit area, where the water flow direction is the direction of the hydrological vector feature and the water flow velocity is the length of the hydrological vector feature.

6. The water conservancy engineering topographic survey and evaluation system based on multi-source data information according to claim 5, characterized in that, The process by which the water conservancy assessment module evaluates the correlation between hydrological data and topographic data within the target area based on the obtained regional plan and elevation map includes: The unit region with hydrological vector characteristics is denoted as the water unit region; Traverse each water unit region and obtain whether there is a geological label in each water unit region. If there is a geological label, mark the corresponding unit region as a water-land related region. Obtain the topographic vector features of each water-land inter-region; If the unit region where the center point of the reference area of ​​the topographic vector feature is located has hydrological vector features, then the corresponding topographic vector feature is marked as a topographic associated feature; Based on the vector length corresponding to the topographic association feature and the angle between the direction of the topographic association feature and the direction of water flow in the corresponding water-land association area, the correlation coefficient between hydrological data and topographic data in the water-land association area is obtained; Set the correlation coefficient threshold; The obtained correlation coefficient is compared with the correlation coefficient threshold range. When the correlation coefficient exceeds the set correlation coefficient threshold, it indicates that there is a correlation between the hydrological data and the topographic data in the corresponding water-land correlation area. Otherwise, there is no correlation.

7. The water conservancy project topographic survey and evaluation system based on multi-source data information according to claim 6, characterized in that, The process by which the water conservancy assessment module marks key water conservancy nodes within the target area on the regional elevation map based on the assessment results includes: Based on the water flow velocity in the water-land associated area and the vector length corresponding to the topographic features associated with that water-land associated area, the risk coefficient Fx of the water-land associated area is obtained. Set a risk threshold F0; When Fx≥F0, the corresponding water-land related area is marked as a key water conservancy node; otherwise, it is not marked. Key water conservancy nodes are mapped to their corresponding locations on the regional planar elevation map.

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