Intelligent surveying and mapping method for geographic information of water conservancy project

Abstract

The invention discloses an intelligent surveying and mapping method for water conservancy project geographic information, and relates to the technical field of water conservancy projects, and the method comprises the steps: decomposing an engineering surveying and mapping process into surveying and mapping basic elements, and judging the surveying and mapping types of the surveying and mapping basic elements, the surveying and mapping types of the surveying and mapping basic elements comprise landform surveying and mapping, water flow surveying and mapping, existing building surveying and mapping and underground water surveying and mapping; establishing a key step identification model; according to the key step recognition model, key steps of the surveying and mapping basic elements and key parameters of the key steps are recognized and obtained; variable factors of the key steps of the surveying and mapping basic elements are obtained; whether the deviation degree is larger than a preset value or not is judged, if yes, early warning is given out, and if not, no processing is carried out. By judging surveying and mapping types of surveying and mapping basic elements, establishing a key step identification model and obtaining variable factors of key steps of the surveying and mapping basic elements, targeted step correction is carried out under the condition that the surveying and mapping data volume is not sufficient, and sufficient surveying and mapping data is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to an intelligent surveying and mapping method for water conservancy project geographic information. Background Art

[0002] Water conservancy project surveying and mapping refers to the work of accurately measuring, mapping and analyzing water conservancy projects using surveying technology and geographic information technology. It plays a vital role in water conservancy project construction, not only providing accurate data support for project design and construction, but also helping project management and environmental protection.

[0003] In the process of engineering surveying and mapping, the setting of surveying and mapping parameters is crucial to controlling the quality of engineering surveying and mapping. However, the existing monitoring technology usually requires humans to set surveying and mapping parameters based on actual conditions. In different surveying and mapping processes, key steps and parameters of surveying and mapping are deleted, which may lead to incomplete surveying and mapping data and affect subsequent data analysis. Summary of the invention

[0004] In order to solve the above technical problems, an intelligent surveying and mapping method for the geographic information of water conservancy projects is provided. This technical solution solves the problem raised in the above background technology that in the process of engineering surveying and mapping, the setting of surveying and mapping parameters is crucial to controlling the quality of engineering surveying and mapping. However, the existing monitoring technology usually sets the surveying and mapping parameters manually according to the actual situation. In different surveying and mapping processes, the key steps and parameters of surveying and mapping are deleted, which may lead to incomplete surveying and mapping data and affect the subsequent data analysis.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: An intelligent surveying and mapping method for water conservancy project geographic information, comprising: Decomposing the engineering surveying and mapping process into at least one surveying and mapping basic element, and judging the surveying and mapping type of the surveying and mapping basic element, wherein the surveying and mapping types of the surveying and mapping basic element include topographic and geomorphic surveying and mapping, water flow surveying and mapping, and groundwater surveying and mapping; Establish a key step identification model; According to the key step identification model, the key steps and key parameters of the key steps of obtaining the basic elements of surveying and mapping are identified; Variable factors in the key steps of obtaining basic elements of surveying and mapping; During the surveying and mapping process, the key steps of the basic surveying and mapping elements are monitored, the actual surveying and mapping conditions of the key steps of the basic surveying and mapping elements are obtained, the degree of deviation between the actual surveying and mapping conditions and the corresponding key parameters is calculated, and it is determined whether the degree of deviation is greater than the preset value. If so, an early warning is issued and the actual surveying and mapping conditions are corrected. If not, no processing is performed.

[0006] Preferably, the step of determining the surveying and mapping type of the surveying and mapping basic element comprises the following steps: The average pixel value of the soil in the image under sunlight is obtained in advance as the soil identification pixel value, and the average pixel value of the water flow in the image under sunlight is obtained in advance as the water flow identification pixel value; Acquire a surveying and mapping video of a surveying and mapping basic element, and continuously extract images from the video at preset time intervals to obtain at least one image frame; Perform feature recognition in the image frame to obtain a contour image of the area to be mapped; In the contour image of the area to be surveyed, the proportion of pixel points whose difference from the soil identification pixel value is less than the preset pixel value is calculated as a first proportion; Determine whether the first proportion is greater than a preset proportion. If so, determine that the surveying type of the surveying basic element is topographic surveying. If not, calculate the proportion of pixel points whose difference from the water flow identification pixel value is less than the preset pixel value in the contour image of the area to be surveyed as the second proportion. It is determined whether the second proportion is greater than the preset proportion. If so, it is determined that the surveying and mapping type of the surveying and mapping basic element is water flow surveying and mapping. If not, it is determined that the surveying and mapping type of the surveying and mapping basic element is groundwater surveying and mapping.

[0007] Preferably, the establishment of the key step identification model comprises the following steps: Generate the key steps of topographic mapping, water flow mapping, existing building mapping and groundwater mapping respectively; The key steps of topographic mapping include: Determine the surveying and mapping areas and targets, and formulate topographic and geomorphic surveying and mapping plans; Select surveying instruments and equipment, and perform pre-processing and calibration; Lay out and measure ground control points and establish surveying and mapping coordinate system; Use drones and satellite remote sensing platforms to conduct aerial photography and obtain high-resolution image data; Generate 3D point cloud data and texture information by processing, matching and analyzing high-resolution image data; Use 3D point cloud data and texture information to extract and analyze terrain features; The key steps for water flow mapping include: Conduct water level measurement, flow velocity measurement and flow measurement; Analyze the changing trends of water level, flow velocity and flow rate based on the measurement results; Key steps in groundwater mapping generation include: Comprehensive monitoring of the groundwater environment using groundwater level monitoring, water quality monitoring, and groundwater chemical analysis; Based on the monitoring results, the groundwater level change trend and groundwater quality composition are obtained.

[0008] Preferably, the key steps of identifying and deriving the basic elements of surveying and mapping and the key parameters of the key steps include the following steps: Obtaining the determination result of the surveying and mapping type of the surveying and mapping basic element; If the surveying type is topographic and geomorphic surveying, the key steps of topographic and geomorphic surveying are taken as the key steps of the basic elements of surveying; The topographic mapping scheme, mapping coordinate system, high-resolution image data, three-dimensional point cloud data and texture information are respectively used as key parameters of the key steps; If the survey type is water flow survey, the key steps of water flow survey are taken as the key steps of the basic elements of survey; The water level, flow velocity and flow rate are respectively taken as the key parameters of the key steps; If the survey type is groundwater survey, the key steps of groundwater survey are taken as the key steps of the basic elements of survey; The groundwater level monitoring data, water quality monitoring data and groundwater chemical analysis data are respectively used as key parameters of the key steps.

[0009] Preferably, the variable factors of the key steps of obtaining the basic elements of surveying and mapping include the following steps: Obtain the standard water conservancy project geographical terrain for surveying and mapping using the key steps of basic surveying and mapping elements; Based on historical data, non-hydraulic engineering geographical terrain using key steps different from the basic elements of surveying and mapping is obtained, and steps different from the key steps of the basic elements of surveying and mapping are regarded as non-standard steps; Perform feature recognition on non-hydraulic engineering geography and terrain, obtain differential features that are different from standard hydrographic geography and terrain, correspond the differential features to the key steps of surveying and mapping basic elements, and correspond the differential features to non-standard steps; When differential features appear during actual surveying and mapping, it is allowed to replace the key steps of the basic elements of surveying and mapping corresponding to the differential features and the non-standard steps corresponding to the differential features; Consider differential features and non-standard steps as variables in the key steps of mapping basic elements.

[0010] Preferably, the actual surveying and mapping situation of the key step of obtaining the surveying and mapping basic elements includes the following steps: Obtain the process of surveying and mapping by surveying and mapping personnel according to the key steps of basic surveying and mapping elements, decompose the surveying and mapping process, and obtain at least one basic surveying and mapping step; Obtain at least one actual surveying and mapping parameter obtained by surveyors in basic surveying and mapping steps; At least one basic surveying and mapping step and at least one actual surveying and mapping parameter are summarized to obtain an actual surveying and mapping situation.

[0011] Preferably, the calculating the degree of deviation between the actual surveying and mapping situation and the corresponding key parameter comprises the following steps: Extract features consistent with the difference features in the actual surveyed geographical environment to obtain at least one actual difference feature; Count the total number of key parameters of the key steps of the basic elements of surveying and mapping as the number of features; Acquire surveying and mapping basic steps different from the key steps of surveying and mapping basic elements as target surveying and mapping basic steps; In at least one basic step of target mapping, the non-standard steps corresponding to the actual difference features are deleted; Counting the total number of measured parameters in at least one target mapping basic step after deletion as the target number; The number of targets is divided by the number of features to get the degree of deviation.

[0012] Preferably, the correction of the actual surveying and mapping situation comprises the following steps: The key step of obtaining the basic elements of surveying and mapping that do not appear in the actual surveying and mapping situation is used as a compensation step; Performing similarity judgment on at least one target surveying and mapping basic step and the compensation step after the deletion, when judging the similarity, based on big data, counting the proportion of the same features of at least one implementation environment of the target surveying and mapping basic step and at least one implementation environment of the compensation step as a reference value for the target surveying and mapping basic step and the compensation step; Obtaining a compensation step corresponding to a maximum reference value of at least one reference value of a single target surveying and mapping basic step as a correction step; The basic steps of target mapping are replaced with correction steps.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By judging the surveying type of the surveying basic elements, establishing the key step identification model and obtaining the variable factors of the key steps of the surveying basic elements, the engineering surveying process is decomposed into surveying basic elements. In each surveying basic element, the key steps of engineering surveying can be independently identified, and the key parameters of the key steps can be obtained. The key steps can be monitored, and the surveying quality can be monitored in real time during the engineering surveying process. In this way, when modifying the steps according to the actual situation, accurate identification can be carried out. When the amount of surveying data is insufficient, targeted step corrections can be carried out to ensure the adequacy of the surveying data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the process of the intelligent surveying and mapping method of water conservancy project geographic information of the present invention; Figure 2 It is a schematic diagram of the flow of judging the surveying and mapping type of the surveying and mapping basic element of the present invention; Figure 3A schematic diagram of a process for establishing a key step identification model of the present invention; Figure 4 A flow chart of the key steps of identifying and deriving the basic elements of surveying and mapping and the key parameters of the key steps of the present invention; Figure 5 A flow chart of variable factors of the key steps of obtaining basic elements of surveying and mapping of the present invention; Figure 6 A flowchart of the actual surveying and mapping situation of the key step of obtaining surveying and mapping basic elements of the present invention; Figure 7 It is a schematic diagram of a flow chart of calculating the degree of deviation between the actual surveying and mapping situation and the corresponding key parameters of the present invention; Figure 8 It is a schematic diagram of the process of correcting the actual surveying and mapping situation according to the present invention. DETAILED DESCRIPTION

[0015] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0016] Reference Figure 1 As shown, an intelligent surveying and mapping method for water conservancy project geographic information includes: Decomposing the engineering surveying and mapping process into at least one surveying and mapping basic element, and judging the surveying and mapping type of the surveying and mapping basic element, wherein the surveying and mapping types of the surveying and mapping basic element include topographic and geomorphic surveying and mapping, water flow surveying and mapping, and groundwater surveying and mapping; Establish a key step identification model; According to the key step identification model, the key steps and key parameters of the key steps of obtaining the basic elements of surveying and mapping are identified; Variable factors in the key steps of obtaining basic elements of surveying and mapping; During the surveying and mapping process, the key steps of the basic surveying and mapping elements are monitored, the actual surveying and mapping conditions of the key steps of the basic surveying and mapping elements are obtained, the degree of deviation between the actual surveying and mapping conditions and the corresponding key parameters is calculated, and it is determined whether the degree of deviation is greater than the preset value. If so, an early warning is issued and the actual surveying and mapping conditions are corrected. If not, no processing is performed.

[0017] In this scheme, key steps are formed for the basic elements of surveying and mapping, and the variable factors of the key steps of the basic elements of surveying and mapping are obtained. The key steps of the basic elements of surveying and mapping are used to monitor the surveying and mapping process. Because during surveying and mapping, the surveying and mapping steps may be changed according to the actual situation, the variable factors of the key steps are set for the purpose of change, and reasonable changes are pre-set, so that reasonable changes can be ignored during identification and no early warning is given. However, when changes occur, some uncontrollable changes will inevitably occur. Therefore, it is necessary to estimate the changes in the overall surveying and mapping. When the changes are large, the surveying and mapping steps will be corrected to ensure the quality of the surveying and mapping data and avoid key parameters from not being surveyed.

[0018] Reference Figure 2 As shown, judging the surveying and mapping type of the surveying and mapping basic element includes the following steps: The average pixel value of the soil in the image under sunlight is obtained in advance as the soil identification pixel value, and the average pixel value of the water flow in the image under sunlight is obtained in advance as the water flow identification pixel value; Acquire a surveying and mapping video of a surveying and mapping basic element, and continuously extract images from the video at preset time intervals to obtain at least one image frame; Perform feature recognition in the image frame to obtain a contour image of the area to be mapped; In the contour image of the area to be surveyed, the proportion of pixel points whose difference from the soil identification pixel value is less than the preset pixel value is calculated as a first proportion; Determine whether the first proportion is greater than a preset proportion. If so, determine that the surveying type of the surveying basic element is topographic surveying. If not, calculate the proportion of pixel points whose difference from the water flow identification pixel value is less than the preset pixel value in the contour image of the area to be surveyed as the second proportion. It is determined whether the second proportion is greater than the preset proportion. If so, it is determined that the surveying and mapping type of the surveying and mapping basic element is water flow surveying and mapping. If not, it is determined that the surveying and mapping type of the surveying and mapping basic element is groundwater surveying and mapping.

[0019] There are different types of surveying and mapping processes, so they need to be identified separately. Otherwise, when performing step monitoring, different types of surveying and mapping will be mixed up for monitoring, which will increase the difficulty of identification and easily lead to identification errors.

[0020] Reference Figure 3 As shown, establishing a key step identification model includes the following steps: Generate the key steps of topographic mapping, water flow mapping, existing building mapping and groundwater mapping respectively; The key steps of topographic mapping include: Determine the surveying and mapping areas and targets, and formulate topographic and geomorphic surveying and mapping plans; Select surveying instruments and equipment, and perform pre-processing and calibration; Lay out and measure ground control points and establish surveying and mapping coordinate system; Use drones and satellite remote sensing platforms to conduct aerial photography and obtain high-resolution image data; Generate 3D point cloud data and texture information by processing, matching and analyzing high-resolution image data; Use 3D point cloud data and texture information to extract and analyze terrain features; The key steps for water flow mapping include: Conduct water level measurement, flow velocity measurement and flow measurement; Analyze the changing trends of water level, flow velocity and flow rate based on the measurement results; Key steps in groundwater mapping generation include: Comprehensive monitoring of the groundwater environment using groundwater level monitoring, water quality monitoring, and groundwater chemical analysis; Based on the monitoring results, the groundwater level change trend and groundwater quality composition are obtained.

[0021] Among various surveying and mapping basic elements, they undertake different surveying and mapping tasks. Therefore, they need to obtain corresponding surveying and mapping data. To obtain these data, corresponding steps must be followed. Some of these steps are necessary, while some are not. Therefore, the necessary steps are extracted and used as the key steps of the surveying and mapping basic elements. When surveying and mapping, these key steps are included, and the surveying and mapping data will be more sufficient to meet the subsequent analysis and modeling needs.

[0022] Reference Figure 4 As shown, the key steps for identifying and deriving the basic elements of surveying and mapping and the key parameters of the key steps include the following steps: Obtaining the determination result of the surveying and mapping type of the surveying and mapping basic element; If the surveying type is topographic and geomorphic surveying, the key steps of topographic and geomorphic surveying are taken as the key steps of the basic elements of surveying; The topographic mapping scheme, mapping coordinate system, high-resolution image data, three-dimensional point cloud data and texture information are respectively used as key parameters of the key steps; If the survey type is water flow survey, the key steps of water flow survey are taken as the key steps of the basic elements of survey; The water level, flow velocity and flow rate are respectively taken as the key parameters of the key steps; If the survey type is groundwater survey, the key steps of groundwater survey are taken as the key steps of the basic elements of survey; The groundwater level monitoring data, water quality monitoring data and groundwater chemical analysis data are respectively used as key parameters of the key steps.

[0023] When the surveying type of the basic surveying element is determined, targeted identification can be carried out at the key steps corresponding to the surveying type. As a result, during actual surveying, monitoring is more targeted and less computing power is consumed for identification.

[0024] Reference Figure 5 As shown, the key steps to obtain the basic elements of surveying and mapping include the following steps: Obtain the standard water conservancy project geographical terrain for surveying and mapping using the key steps of basic surveying and mapping elements; Based on historical data, non-hydraulic engineering geographical terrain using key steps different from the basic elements of surveying and mapping is obtained, and steps different from the key steps of the basic elements of surveying and mapping are regarded as non-standard steps; Perform feature recognition on non-hydraulic engineering geography and terrain, obtain differential features that are different from standard hydrographic geography and terrain, correspond the differential features to the key steps of surveying and mapping basic elements, and correspond the differential features to non-standard steps; When differential features appear during actual surveying and mapping, it is allowed to replace the key steps of the basic elements of surveying and mapping corresponding to the differential features and the non-standard steps corresponding to the differential features; Consider differential features and non-standard steps as variables in the key steps of mapping basic elements.

[0025] In actual situations, the geographical environment is not static. Therefore, in some cases, the key steps of the basic elements of surveying and mapping need to be changed to adapt to the geographical environment. Therefore, these reasonable changes need to be recorded. When monitoring, those steps that are different from the key steps of the basic elements of surveying and mapping should be eliminated, and no warnings should be issued as abnormal situations. This can improve the adaptability of this plan to the actual situation.

[0026] Reference Figure 6 As shown in the figure, the actual surveying and mapping of the key steps to obtain the basic elements of surveying and mapping includes the following steps: Obtain the process of surveying and mapping by surveying and mapping personnel according to the key steps of basic surveying and mapping elements, decompose the surveying and mapping process, and obtain at least one basic surveying and mapping step; Obtain at least one actual surveying and mapping parameter obtained by surveyors in basic surveying and mapping steps; At least one basic surveying and mapping step and at least one actual surveying and mapping parameter are summarized to obtain an actual surveying and mapping situation.

[0027] Reference Figure 7 As shown, calculating the degree of deviation between the actual surveying and mapping situation and the corresponding key parameters includes the following steps: Extract features consistent with the difference features in the actual surveyed geographical environment to obtain at least one actual difference feature; Count the total number of key parameters of the key steps of the basic elements of surveying and mapping as the number of features; Acquire surveying and mapping basic steps different from the key steps of surveying and mapping basic elements as target surveying and mapping basic steps; In at least one basic step of target mapping, the non-standard steps corresponding to the actual difference features are deleted; Counting the total number of measured parameters in at least one target mapping basic step after deletion as the target number; The number of targets is divided by the number of features to get the degree of deviation.

[0028] When considering the reasonable change steps made due to actual conditions, the steps that are artificially set to match the actual situation may not meet the surveying and mapping requirements. Therefore, the steps with deviations are checked. When the deviation is large, it is corrected. When the deviation is small, surveying and mapping is carried out according to the steps. The surveyed and mapping data can basically meet the requirements and the error is within the allowable range.

[0029] Reference Figure 8 As shown, the correction of the actual surveying and mapping situation includes the following steps: The key step of obtaining the basic elements of surveying and mapping that do not appear in the actual surveying and mapping situation is used as a compensation step; Performing similarity judgment on at least one target surveying and mapping basic step and the compensation step after the deletion, when judging the similarity, based on big data, counting the proportion of the same features of at least one implementation environment of the target surveying and mapping basic step and at least one implementation environment of the compensation step as a reference value for the target surveying and mapping basic step and the compensation step; Obtaining a compensation step corresponding to a maximum reference value of at least one reference value of a single target surveying and mapping basic step as a correction step; The basic steps of target mapping are replaced with correction steps.

[0030] Furthermore, the present solution also proposes a storage medium on which a computer-readable program is stored, and when the computer-readable program is called, the above-mentioned intelligent surveying and mapping method of the geographic information of the water conservancy project is executed.

[0031] It is understandable that the storage medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a DVD; or a semiconductor medium, such as a solid state drive (SSD).

[0032] To sum up, the advantages of the present invention are: by judging the surveying and mapping type of the surveying and mapping basic elements, establishing a key step identification model and obtaining the variable factors of the key steps of the surveying and mapping basic elements, the engineering surveying and mapping process is decomposed into surveying and mapping basic elements, and the key steps in the engineering surveying and mapping can be autonomously identified in each surveying and mapping basic element, and the key parameters of the key steps can be obtained. The key steps can be monitored, and the surveying and mapping quality can be monitored in real time during the engineering surveying and mapping process, so that when the steps are modified according to the actual situation, accurate identification can be performed, and when the amount of surveying and mapping data is insufficient, targeted step corrections can be performed to ensure the adequacy of the surveying and mapping data.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent surveying and mapping method for water conservancy project geographic information, characterized in that: include: Decomposing the engineering surveying and mapping process into at least one surveying and mapping basic element, and judging the surveying and mapping type of the surveying and mapping basic element, wherein the surveying and mapping types of the surveying and mapping basic element include topographic and geomorphic surveying and mapping, water flow surveying and mapping, and groundwater surveying and mapping; Establish a key step identification model; According to the key step identification model, the key steps and key parameters of the key steps of obtaining the basic elements of surveying and mapping are identified; Variable factors in the key steps of obtaining basic elements of surveying and mapping; During the surveying and mapping process, the key steps of the basic surveying and mapping elements are monitored, the actual surveying and mapping conditions of the key steps of the basic surveying and mapping elements are obtained, the degree of deviation between the actual surveying and mapping conditions and the corresponding key parameters is calculated, and it is determined whether the degree of deviation is greater than the preset value. If so, an early warning is issued and the actual surveying and mapping conditions are corrected. If not, no processing is performed.

2. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 1 is characterized in that: Determining the surveying and mapping type of the surveying and mapping basic element comprises the following steps: The average pixel value of the soil in the image under sunlight is obtained in advance as the soil identification pixel value, and the average pixel value of the water flow in the image under sunlight is obtained in advance as the water flow identification pixel value; Acquire a surveying and mapping video of a surveying and mapping basic element, and continuously extract images from the video at preset time intervals to obtain at least one image frame; Perform feature recognition in the image frame to obtain a contour image of the area to be mapped; In the contour image of the area to be surveyed, the proportion of pixel points whose difference from the soil identification pixel value is less than the preset pixel value is calculated as a first proportion; Determine whether the first proportion is greater than a preset proportion. If so, determine that the surveying type of the surveying basic element is topographic surveying. If not, calculate the proportion of pixel points whose difference from the water flow identification pixel value is less than the preset pixel value in the contour image of the area to be surveyed as the second proportion. It is determined whether the second proportion is greater than the preset proportion. If so, it is determined that the surveying and mapping type of the surveying and mapping basic element is water flow surveying and mapping. If not, it is determined that the surveying and mapping type of the surveying and mapping basic element is groundwater surveying and mapping.

3. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 2 is characterized in that: The key step identification model is established, comprising the following steps: Generate the key steps of topographic mapping, water flow mapping, existing building mapping and groundwater mapping respectively; The key steps of topographic mapping include: Determine the surveying and mapping areas and targets, and formulate topographic and geomorphic surveying and mapping plans; Select surveying instruments and equipment, and perform pre-processing and calibration; Lay out and measure ground control points and establish surveying and mapping coordinate system; Use drones and satellite remote sensing platforms to conduct aerial photography and obtain high-resolution image data; Generate 3D point cloud data and texture information by processing, matching and analyzing high-resolution image data; Use 3D point cloud data and texture information to extract and analyze terrain features; The key steps for water flow mapping include: Conduct water level measurement, flow velocity measurement and flow measurement; Analyze the changing trends of water level, flow velocity and flow rate based on the measurement results; Key steps in groundwater mapping generation include: Comprehensive monitoring of the groundwater environment using groundwater level monitoring, water quality monitoring, and groundwater chemical analysis; Based on the monitoring results, the groundwater level change trend and groundwater quality composition are obtained.

4. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 3 is characterized in that: The key steps of identifying and deriving the basic elements of surveying and mapping and the key parameters of the key steps include the following steps: Obtaining the determination result of the surveying and mapping type of the surveying and mapping basic element; If the surveying type is topographic and geomorphic surveying, the key steps of topographic and geomorphic surveying are taken as the key steps of the basic elements of surveying; The topographic mapping scheme, mapping coordinate system, high-resolution image data, three-dimensional point cloud data and texture information are respectively used as key parameters of the key steps; If the survey type is water flow survey, the key steps of water flow survey are taken as the key steps of the basic elements of survey; The water level, flow velocity and flow rate are respectively taken as the key parameters of the key steps; If the survey type is groundwater survey, the key steps of groundwater survey are taken as the key steps of the basic elements of survey; The groundwater level monitoring data, water quality monitoring data and groundwater chemical analysis data are respectively used as key parameters of the key steps.

5. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 4 is characterized in that: The variable factors of the key steps of obtaining the basic elements of surveying and mapping include the following steps: Obtain the standard water conservancy project geographical terrain for surveying and mapping using the key steps of basic surveying and mapping elements; Based on historical data, non-hydraulic engineering geographical terrain using key steps different from the basic elements of surveying and mapping is obtained, and steps different from the key steps of the basic elements of surveying and mapping are regarded as non-standard steps; Perform feature recognition on non-hydraulic engineering geography and terrain, obtain differential features that are different from standard hydrographic geography and terrain, correspond the differential features to the key steps of surveying and mapping basic elements, and correspond the differential features to non-standard steps; When differential features appear during actual surveying and mapping, it is allowed to replace the key steps of the basic elements of surveying and mapping corresponding to the differential features and the non-standard steps corresponding to the differential features; Consider differential features and non-standard steps as variables in the key steps of mapping basic elements.

6. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 5 is characterized in that: The actual surveying and mapping of the key steps of obtaining surveying and mapping basic elements includes the following steps: Obtain the process of surveying and mapping by surveying and mapping personnel according to the key steps of basic surveying and mapping elements, decompose the surveying and mapping process, and obtain at least one basic surveying and mapping step; Obtain at least one actual surveying and mapping parameter obtained by surveyors in basic surveying and mapping steps; At least one basic surveying and mapping step and at least one actual surveying and mapping parameter are summarized to obtain an actual surveying and mapping situation.

7. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 6 is characterized in that: The calculation of the deviation between the actual surveying and mapping situation and the corresponding key parameters comprises the following steps: Extract features consistent with the difference features in the actual surveyed geographical environment to obtain at least one actual difference feature; Count the total number of key parameters of the key steps of the basic elements of surveying and mapping as the number of features; Acquire surveying and mapping basic steps different from the key steps of surveying and mapping basic elements as target surveying and mapping basic steps; In at least one basic step of target mapping, the non-standard steps corresponding to the actual difference features are deleted; Counting the total number of measured parameters in at least one target mapping basic step after deletion as the target number; The number of targets is divided by the number of features to get the degree of deviation.

8. The intelligent surveying and mapping method of water conservancy project geographic information according to claim 7 is characterized in that: The correction of the actual surveying and mapping situation comprises the following steps: The key step of obtaining the basic elements of surveying and mapping that do not appear in the actual surveying and mapping situation is used as a compensation step; Performing similarity judgment on at least one target surveying and mapping basic step and the compensation step after the deletion, when judging the similarity, based on big data, counting the proportion of the same features of at least one implementation environment of the target surveying and mapping basic step and at least one implementation environment of the compensation step as a reference value for the target surveying and mapping basic step and the compensation step; Obtaining a compensation step corresponding to a maximum reference value of at least one reference value of a single target surveying and mapping basic step as a correction step; The basic steps of target mapping are replaced with correction steps.

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