A drainage management method and system with multi-process joint regulation

Abstract

The present invention discloses a drainage management method and system of multi-process joint regulation, which relates to drainage management related fields. The method includes: collecting terrain data of the target area and establishing a three-dimensional terrain model; extracting terrain features; configuring the main drainage channel, reshaping the terrain, and updating the main drainage channel; analyzing the elevation distribution, establishing a secondary catchment area, locating the water accumulation concern, and establishing the water accumulation concern value; performing grid segmentation, and establishing a distributed drainage network according to the slope flow direction analysis; configuring field micro-drainage units, and establishing network connectivity between the field micro-drainage units and the distributed drainage network; establishing a three-layer waterlogging water discharge model with the main drainage channel, the distributed drainage network, and the field micro-drainage units for joint drainage management. The method solves the technical problems of low drainage efficiency and the threat of waterlogging disasters to farmland in the existing farmland drainage management, and achieves the technical effect of improving drainage efficiency and reducing the occurrence of waterlogging disasters.

Description

Technical Field

[0001] The present application relates to the field of drainage management, and in particular to a drainage management method and system with multi-process joint regulation. Background Art

[0002] Farmland drainage management is an important part of agricultural production and is directly related to the growth and yield of crops. However, due to the influence of various factors such as climate, topography, and soil, farmland is often threatened by waterlogging disasters. Waterlogging not only hinders the growth of crops or even causes death, but also causes a series of problems such as soil salinization and the breeding of pests and diseases, which seriously affect the sustainable development of agricultural production. In farmland drainage management, traditional methods mainly rely on artificial digging of drainage ditches and the setting of drainage pumping stations for drainage. These methods can alleviate the waterlogging problem of farmland to a certain extent, but due to the lack of systematic planning and the unreasonable layout of drainage ditches, the drainage efficiency is low and cannot meet the needs of rapid drainage of farmland. At the same time, in the drainage process, due to the unreasonable design or improper maintenance of drainage facilities, water resources are often wasted, such as excessive drainage or untimely drainage.

[0003] Among the current relevant technologies, farmland drainage management lacks systematic planning, resulting in low drainage efficiency, inability to drain farmland water in a timely manner, and technical problems such as farmland being threatened by waterlogging disasters. Summary of the invention

[0004] The present application provides a drainage management method and system with multi-process joint control, which uses drones or lidar to collect terrain data of the target area, establishes a three-dimensional terrain model, extracts terrain features from the three-dimensional terrain model, forms feature extraction results, configures the main drainage channel according to the feature extraction results, reshapes the terrain to optimize the channel, then updates the channel information, establishes secondary watershed areas based on elevation distribution analysis, locates water accumulation concerns in these areas, sets water accumulation concern values, uses water accumulation concern values ​​and secondary watershed areas to perform grid segmentation, establishes a distributed drainage network in combination with slope flow direction analysis, configures field micro-drainage units according to the terrain feature extraction results, and connects them to the distributed drainage network, establishes a three-layer waterlogging drainage model based on the main drainage channel, the distributed drainage network and the field micro-drainage units, and performs joint drainage management and other technical means, thereby achieving the technical effect of optimizing the design of the drainage system, improving drainage efficiency, ensuring that farmland water can be discharged in a timely manner, and reducing the occurrence of waterlogging disasters.

[0005] The present application provides a drainage management method with multi-path joint control, comprising: using an unmanned aerial vehicle or a laser radar to collect terrain data of a target area and establish a three-dimensional terrain model; extracting terrain features from the three-dimensional terrain model and establishing a terrain feature extraction result; configuring a main drainage channel using the terrain feature extraction result, and reshaping the main drainage channel based on terrain data, and updating the main drainage channel according to the terrain reshaping result; performing elevation distribution analysis based on the three-dimensional terrain model, establishing a secondary watershed area based on the elevation distribution analysis result, locating water accumulation attention for the secondary watershed area based on the terrain feature extraction result, and establishing a water accumulation attention value; performing grid segmentation using the water accumulation attention value and the secondary watershed area, and establishing a distributed drainage network based on slope flow direction analysis; configuring a field micro-drainage unit using the terrain feature extraction result, and establishing network connectivity between the field micro-drainage unit and the distributed drainage network; establishing a three-layer waterlogging drainage model using the main drainage channel, the distributed drainage network and the field micro-drainage unit, and performing joint drainage management using the three-layer waterlogging drainage model.

[0006] In a possible implementation, the main drainage channel is configured using the terrain feature extraction result, and the following processing is performed: the water catchment area is identified based on the terrain feature extraction result, a natural water catchment point is established, and a natural water outlet is set using the terrain feature extraction result; with the natural water catchment point as the starting point and the natural water outlet as the end point, the path of the main drainage channel is optimized through the path fitness function, and a path optimization result is established; and the main drainage channel is configured using the path optimization result.

[0007] In a possible implementation, the following processing is performed: the path fitness function is as follows: ;

[0008] in, Characterizes the path fitness value, Characterizes the maximum length of possible paths, is the total number of nodes on the path, is the node number, Characterization Node and The distance between nodes, Represents the total number of obstacles, Number the obstacle. Characterization The overlap area between the obstacle and the path, Characterizes the total area of ​​the path, Characterizes the actual flow velocity of the path, Characterize the target flow rate of the design, Represents the total area of ​​low-lying areas covered by the current path, Represents the total area of ​​low-lying areas, , , , They are the weight factors for path length, obstacle avoidance, flow velocity, and low-lying area coverage.

[0009] In a possible implementation, the water accumulation concern value and the secondary catchment area are used to perform grid segmentation, and a distributed drainage network is established based on a slope flow direction analysis, and the following processing is performed: calibrated grid parameters are configured, and adaptive grid updates are performed using the water accumulation concern value and the calibrated grid parameters to establish adaptive grid update results; the secondary catchment area is grid segmented using the adaptive grid update results to establish a grid segmentation result; a slope flow direction analysis is performed on the grid segmentation result to establish a flow path; and the distributed drainage network is established based on the flow path and the grid segmentation result.

[0010] In a possible implementation, the field micro-drainage unit is configured using the terrain feature extraction result, and the following processing is performed: the field is located according to the terrain feature extraction result, and a field feature set is constructed, wherein the field feature set includes terrain features, soil property features, and crop type features; the field feature set is input into the drainage fitting channel for drainage fitting, and an initial field micro-drainage unit is established; the drainage effect of the initial field micro-drainage unit is evaluated based on the position importance, and evaluation feedback is established; micro-topography is reshaped according to the evaluation feedback, and a field micro-drainage unit is generated according to the micro-topography reshaping result.

[0011] In a possible implementation, the three-layer waterlogging drainage model is used for joint drainage management, and the following processing is performed: calling a water volume monitoring sensor to obtain water volume monitoring data of the target area; sending the water volume monitoring data to the three-layer waterlogging drainage model, performing joint drainage analysis, generating a joint scheduling plan based on the results of the joint drainage analysis, and performing joint drainage management with the joint scheduling plan.

[0012] In a possible implementation, the following processing is also performed: performing drainage warning threshold trigger analysis on the combined drainage analysis result; reporting a drainage attention warning according to the trigger analysis result, and performing continuous monitoring and management with the drainage attention warning.

[0013] The present application also provides a multi-process jointly controlled drainage management system, including: a terrain data acquisition module, the terrain data acquisition module is used to use an unmanned aerial vehicle or a laser radar to collect terrain data of a target area and establish a three-dimensional terrain model; a terrain feature extraction module, the terrain feature extraction module is used to extract terrain features from the three-dimensional terrain model and establish a terrain feature extraction result; a main drainage channel configuration module, the main drainage channel configuration module is used to configure the main drainage channel using the terrain feature extraction result, and to reshape the main drainage channel based on the terrain data, and update the main drainage channel according to the terrain reshaping result; a water accumulation concern value establishment module, the water accumulation concern value establishment module is used to perform elevation distribution analysis based on the three-dimensional terrain model, and establish a secondary water catchment area based on the elevation distribution analysis result. , the secondary watershed area is located for waterlogging concern based on the terrain feature extraction result, and a waterlogging concern value is established; a distributed drainage network establishment module, the distributed drainage network establishment module is used to use the waterlogging concern value and the secondary watershed area to perform grid segmentation, and establish a distributed drainage network according to slope flow direction analysis; a field micro-drainage unit configuration module, the field micro-drainage unit configuration module is used to configure the field micro-drainage unit using the terrain feature extraction result, and establish network connectivity between the field micro-drainage unit and the distributed drainage network; a joint drainage management module, the joint drainage management module is used to establish a three-layer waterlogging drainage model with the main drainage channel, the distributed drainage network and the field micro-drainage unit, and use the three-layer waterlogging drainage model to perform joint drainage management.

[0014] The present application proposes a drainage management method and system with multi-process joint control. First, the terrain data of the target area is collected by drone or lidar to establish a three-dimensional terrain model. Then, the terrain features are extracted from the three-dimensional terrain model to establish the terrain feature extraction results. Then, the main drainage channel is configured using the terrain feature extraction results, and the main drainage channel is reshaped based on the terrain data. The main drainage channel is updated according to the terrain reshaping results. Then, the elevation distribution analysis is performed based on the three-dimensional terrain model, and the secondary watershed area is established based on the elevation distribution analysis results. The secondary watershed area is reshaped based on the terrain feature extraction results. Waterlogging concern is located, and waterlogging concern value is established. Then, the waterlogging concern value and secondary catchment area are used for grid segmentation, and a distributed drainage network is established according to the slope flow direction analysis. The terrain feature extraction results are used to configure the field micro-drainage unit, and the network connection between the field micro-drainage unit and the distributed drainage network is established. Finally, a three-layer waterlogging drainage model is established with the main drainage channel, distributed drainage network and field micro-drainage unit. The three-layer waterlogging drainage model is used for joint drainage management, which achieves the technical effect of optimizing the design of the drainage system, improving drainage efficiency, ensuring that the waterlogged water in the farmland can be discharged in time, and reducing the occurrence of waterlogging disasters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the accompanying drawings of the embodiment of the present invention will be briefly introduced below. A flow chart is used in the present application to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, various steps can be processed in reverse order or simultaneously as needed. At the same time, other operations can also be added to these processes, or one or more operations can be removed from these processes.

[0016] Figure 1 A flow chart of a multi-process joint control drainage management method provided in an embodiment of the present application.

[0017] Figure 2 A schematic diagram of the structure of a multi-process joint control drainage management system provided in an embodiment of the present application.

[0018] Explanation of the reference numerals: terrain data acquisition module 10, terrain feature extraction module 20, main drainage channel configuration module 30, water accumulation concern value establishment module 40, distributed drainage network establishment module 50, field micro-drainage unit configuration module 60, joint drainage management module 70. DETAILED DESCRIPTION

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0020] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0021] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. The terms "including" and "having" and any variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs. The terms used herein are for the purpose of describing the embodiments of the present application only.

[0022] The present application embodiment provides a drainage management method for multi-process joint regulation, such as Figure 1 As shown, the method includes:

[0023] Step S100, using a drone or a laser radar to collect terrain data of the target area and establish a three-dimensional terrain model. Specifically, using a high-resolution camera or laser radar sensor carried by a drone, a flight scan is performed over the target area according to a preset flight route and altitude to collect reflection data of the terrain surface. Through ground or vehicle-mounted laser radar equipment, a laser beam is emitted and the reflected signal is received to measure the distance and shape of the terrain surface. The collected data is input into a professional geographic information system (GIS) or three-dimensional modeling software, and a three-dimensional terrain model is generated through algorithm processing. The three-dimensional terrain model is a terrain surface model represented by three-dimensional coordinates, which is used for terrain analysis, planning, etc.

[0024] Step S200, extract terrain features from the three-dimensional terrain model and establish terrain feature extraction results. Specifically, use terrain analysis tools in GIS or three-dimensional modeling software to extract features from the three-dimensional terrain model. Extract elevation information (the vertical distance of a point on the ground relative to a reference plane) from the three-dimensional terrain model to generate an elevation distribution map. Calculate the slope (the degree of inclination of a point on the terrain surface) and aspect (the direction of inclination of a point on the terrain surface) of each point in the three-dimensional terrain model to generate a slope and aspect map. Based on information such as elevation, slope, and aspect, identify features such as valleys, ridges, saddles, and depressions in the terrain.

[0025] Step S300, configure the main drainage channel using the terrain feature extraction result, and reshape the main drainage channel based on the terrain data, and update the main drainage channel according to the terrain reshaping result. Specifically, based on the terrain feature extraction result, use GIS or water conservancy engineering design software to plan the main drainage channel and perform terrain reshaping design. First, identify the main catchment area (the area where rainwater or floods gather in the terrain) based on the terrain characteristics and elevation distribution. According to the location and terrain characteristics of the catchment area, plan the direction, width and depth of the main drainage channel (the main channel for guiding water flow). Perform terrain reshaping design along the main drainage channel, that is, change the terrain shape and characteristics through engineering means such as excavation and filling, including calculation of excavation and filling volume, analysis of slope stability, etc. According to the terrain reshaping design results, update the position and parameters of the main drainage channel.

[0026] In a possible implementation, the main drainage channel is configured using the terrain feature extraction result, and step S300 further includes step S310, identifying the catchment area based on the terrain feature extraction result, establishing a natural catchment point, and setting a natural outlet using the terrain feature extraction result. Specifically, using the established three-dimensional terrain model and terrain feature extraction result, the catchment area (the geographical range where water can naturally converge to a specific area after rainfall) is identified through a geographic information system (GIS) or a hydrological analysis tool, and the elevation, slope, and slope direction information in the terrain features are analyzed to identify the low-lying areas, valleys, rivers, and other naturally formed catchment areas in the terrain. Combined with water flow simulation software or a hydrological model, the water flow path after rainfall is simulated to further verify and determine the boundaries of the catchment area. After determining the catchment area, the location of the natural outlet is set according to the terrain characteristics, drainage requirements, and environmental protection requirements. The natural outlet refers to the location where the water flow is finally discharged into the natural environment (rivers, lakes, oceans, and other water bodies).

[0027] Step S320, taking the natural water confluence point as the starting point and the natural water outlet as the end point, the path of the main drainage channel is optimized by the path fitness function, and the path optimization result is established. Specifically, the path fitness function is used to comprehensively consider drainage efficiency, engineering cost, environmental impact and other factors to optimize the path of the main drainage channel. Among them, the path fitness function is a function used to evaluate the quality of the drainage channel path, which may include multiple indicators such as the slope, length, material cost, and environmental impact assessment of the drainage channel, and find the optimal or approximately optimal drainage channel path through an optimization algorithm (such as a genetic algorithm, a simulated annealing algorithm, etc.).

[0028] Step S330, configuring the main drainage channel according to the path optimization result. Specifically, the specific location and direction of the main drainage channel are determined according to the path optimization result. This implementation method improves the accuracy of the location and direction configuration of the drainage channel by identifying the catchment area and setting the natural outlet based on the terrain feature extraction result, thereby improving the drainage efficiency.

[0029] In a possible implementation, step S320 further includes step S321, and the path fitness function is as follows: ;

[0030] in, Characterizes the path fitness value, Characterizes the maximum length of possible paths, is the total number of nodes on the path, is the node number, Characterization Node and The distance between nodes, Represents the total number of obstacles, Number the obstacle. Characterization The overlap area between the obstacle and the path, Characterizes the total area of ​​the path, Characterizes the actual flow velocity of the path, Characterize the target flow rate of the design, Represents the total area of ​​low-lying areas covered by the current path, Represents the total area of ​​low-lying areas, , , , They are weight factors for path length, obstacle avoidance, flow rate, and low-lying area coverage. Specifically, the path fitness function integrates multiple factors, including the maximum length of the path, the total number of nodes on the path, the distance between nodes, the overlapping area of ​​obstacles and the path, the total area of ​​the path, the actual flow rate of the path, and the designed target flow rate, etc., where nodes refer to turning points on the path; obstacles refer to natural or man-made factors that affect the construction of drainage channels, such as rocks, buildings, trees, etc.; low-lying areas refer to areas in the terrain that are prone to water accumulation. This implementation method constructs a path fitness function and considers factors such as obstacle avoidance and low-lying area coverage in the path fitness function, ensuring that damage and interference to the natural environment are minimized when configuring the main drainage channel, and finding the optimal or approximately optimal main drainage channel path while reducing the impact on the environment.

[0031] Step S400, perform elevation distribution analysis based on the three-dimensional terrain model, establish secondary watershed areas based on the elevation distribution analysis results, perform waterlogging concern positioning on the secondary watershed areas based on the terrain feature extraction results, and establish waterlogging concern values. Specifically, based on the elevation distribution analysis results, divide the secondary watershed areas (watershed areas with smaller scale and more specific scope compared to the main watershed areas), and determine the waterlogging concern areas based on the terrain feature extraction results. Specifically, according to the elevation distribution map, divide the target area into multiple secondary watershed areas, and within the secondary watershed areas, determine the waterlogging concern areas based on the terrain features (such as low-lying areas, slope changes, etc.). According to the terrain features and historical waterlogging of the waterlogging concern areas, establish waterlogging concern values ​​to assess the risk level of waterlogging.

[0032] Step S500, grid segmentation is performed using the water accumulation concern value and the secondary water catchment area, and a distributed drainage network is established based on the slope flow direction analysis. Specifically, the target area is divided into multiple grid cells based on the water accumulation concern value and the secondary water catchment area. In each grid cell, the water flow direction is analyzed based on the slope information to determine the drainage path. Based on the results of grid segmentation and slope flow direction analysis, drainage channels and drainage facilities are designed in each grid cell to form a distributed drainage network for dispersing and draining water.

[0033] In a possible implementation, the waterlogging concern value and the secondary catchment area are used to perform grid segmentation, and a distributed drainage network is established according to the slope flow direction analysis. Step S500 further includes step S510, configuring calibration grid parameters, using the waterlogging concern value and the calibration grid parameters to perform adaptive grid update, and establishing an adaptive grid update result. Specifically, a gridding technology of a geographic information system (GIS) or a hydrological model is used, and firstly, an initial grid size (i.e., the calibration grid parameter, such as the size of a square, rectangular or hexagonal grid) is preset according to the size of the target area, the complexity of the terrain and the drainage demand, and these parameters are used as the basis for grid segmentation. The calculated waterlogging concern value (representing the waterlogging risk of different areas) is combined with the grid parameter, wherein the area with a higher waterlogging concern value requires a finer grid division to more accurately simulate and analyze the drainage process. Based on the waterlogging concern value and the calibration grid parameter, an algorithm (such as a dynamic grid generation algorithm) is used to automatically adjust the grid size and shape to adapt to the waterlogging risk of different areas. In areas with higher waterlogging concern values, the grid size will be reduced accordingly to improve the accuracy of the simulation.

[0034] Step S520, using the adaptive grid update result to perform grid segmentation on the secondary watershed area, and establish a grid segmentation result. Specifically, the grid parameters obtained after the adaptive grid update are used to divide the secondary watershed area, that is, the secondary watershed area is divided into a series of grid cells of different sizes and shapes. Each grid cell is given specific attributes, such as elevation, slope, soil type, etc., which are used for subsequent drainage network design and simulation.

[0035] Step S530, performing slope flow analysis on the grid segmentation result and establishing a flow path. Specifically, the slope flow analysis tool in the geographic information system (GIS) is used to calculate the slope of each grid cell based on the elevation data of the grid cell. According to the slope information, the water flow direction of each grid cell is determined by comparing the elevation difference of adjacent grid cells. Based on the flow information of the grid cells, the flow path of the entire secondary catchment area (a path consisting of a series of grid cells that represents the water flow direction) is constructed, and these paths are used to guide the design of the drainage network.

[0036] Step S540, establishing the distributed drainage network according to the flow path and the grid segmentation result. Specifically, combining the Geographic Information System (GIS) and the principles of water conservancy engineering, based on the flow path and the grid segmentation result, the location, width and depth of the drainage channel are designed, and these channels are used to guide the water flow from the secondary catchment area to the main drainage channel. The designed drainage channel is connected with the main drainage channel to form a complete drainage network, including determining the intersection point and branch point between the drainage channels. According to the drainage requirements and terrain conditions, the drainage network is adjusted and optimized as necessary to ensure its effectiveness and efficiency. This implementation method accurately simulates and analyzes the water accumulation risk in different areas through adaptive grid updating and fine grid segmentation, and uses the Geographic Information System (GIS) and algorithm to automatically perform grid division and flow analysis, shortening the time of drainage network design and improving the design efficiency. At the same time, the distributed drainage network is designed based on the flow path and the grid segmentation result, which can more reasonably guide the water flow, reduce the risk of water accumulation, and thus improve the drainage effect.

[0037] Step S600, configure the field micro-drainage unit using the terrain feature extraction result, and establish network connectivity between the field micro-drainage unit and the distributed drainage network. Specifically, in a field such as a farmland, a micro-drainage unit is designed based on the terrain feature extraction result and the crop planting situation. The field micro-drainage unit is a small drainage facility used for drainage in a field such as a farmland, such as a drainage ditch, a seepage pool, etc. The field micro-drainage unit is connected to the distributed drainage network to ensure that water can be smoothly discharged from the field and merged into the distributed drainage network.

[0038] In a possible implementation, the field micro-drainage unit is configured using the terrain feature extraction result, and step S600 further includes step S610, positioning the field according to the terrain feature extraction result, and constructing a field feature set, wherein the field feature set includes terrain features, soil property features, and crop type features. Specifically, by using GIS software and terrain feature extraction results (such as elevation, slope, slope aspect, etc.), the terrain feature extraction results are superimposed and analyzed with the existing farmland map or remote sensing image to accurately locate the field in the target area and determine the specific location and boundary of the field. Through field surveys, soil sample analysis, crop planting records, etc., the terrain features (such as elevation changes, slope, etc.), soil property features (such as soil type, soil texture, soil fertility, etc.) and crop type features (such as crop type, growth cycle, water demand, etc.) of the field are collected. The collected feature data are integrated into a database to construct a field feature set, which is used for subsequent drainage fitting and drainage effect evaluation.

[0039] Step S620, input the field feature set into the drainage fitting channel for drainage fitting, and establish an initial field micro-drainage unit. Specifically, according to the drainage requirements and field characteristics of the target area, select a drainage model or algorithm (such as a hydrological model, a drainage system optimization algorithm, etc.), which can simulate the movement of water in the field and the impact of the drainage system on the water flow. Input the field feature set as input data into the drainage model. Run the drainage model, simulate the water flow movement and drainage process in the field according to the input feature set, and adjust the model parameters to make the simulation results consistent with the actual situation, thereby establishing an initial field micro-drainage unit (a preliminary field drainage system or structure established based on the drainage fitting results).

[0040] Step S630, evaluate the drainage effect of the initial field micro-drainage unit based on the position importance, and establish evaluation feedback. Specifically, according to the drainage demand and field characteristics, determine the criteria for evaluating the drainage effect of the initial field micro-drainage unit, including drainage efficiency, drainage cost, impact on crop growth, etc. Through model simulation and other methods, collect data related to drainage effect, use spatial analysis methods in GIS to evaluate the degree of influence of the field on the overall performance of the drainage system, and determine the position importance of the field in the drainage system. Based on the collected data and the results of the position importance analysis, use methods such as multi-criteria decision analysis (MCDA) to evaluate the drainage effect of the initial field micro-drainage unit, including calculating indicators such as drainage efficiency and cost-effectiveness ratio, and determine whether there is room for improvement.

[0041] Step S640, reshape the micro-topography according to the evaluation feedback, and generate the field micro-drainage unit according to the micro-topography reshaping result. Specifically, analyze the drainage effect evaluation results and feedback obtained in step S630, including identifying bottlenecks and weaknesses in the drainage system, and determining areas that need improvement. According to the evaluation feedback, design a micro-topography reshaping plan, and the micro-topography reshaping refers to a small-scale terrain adjustment or transformation of the field to improve drainage conditions or improve drainage efficiency, including determining the area that needs to be reshaped, the method and degree of reshaping, etc. According to the design plan, the field is reshaped by micro-topography reshaping technology, including land leveling, ditching, embankment and other engineering measures. Based on the results of micro-topography reshaping, adjust and optimize the field micro-drainage unit, including modifying the location, width and depth of the drainage channel and other parameters, and increasing or reducing drainage facilities. Through adjustment and optimization, the field micro-drainage unit can better adapt to the conditions after the terrain reshaping and improve the drainage effect. This implementation method accurately determines the terrain, soil and crop characteristics of the fields by precisely locating the fields and constructing field feature sets, thereby improving the rationality of the drainage system design. Through drainage fitting and drainage effect evaluation, the bottlenecks and weaknesses in the drainage system are identified, and the micro-drainage units of the fields are reshaped and adjusted through micro-topography, thus avoiding unnecessary engineering investment, optimizing drainage costs, and improving the stability and reliability of the drainage system.

[0042] Step S700, a three-layer waterlogging drainage model is established with the main drainage channel, the distributed drainage network and the field micro-drainage unit, and the three-layer waterlogging drainage model is used for joint drainage management. Specifically, the main drainage channel, the distributed drainage network and the field micro-drainage unit are integrated into an overall three-layer waterlogging drainage model to simulate and evaluate the performance and efficiency of the drainage system. The three-layer waterlogging drainage model is used to carry out unified planning, scheduling and operation management of the drainage system to ensure that the accumulated water can be effectively drained under conditions such as rainfall to prevent the occurrence of waterlogging disasters. The embodiment of the present application uses an unmanned aerial vehicle or a lidar to collect terrain data of a target area, establishes a three-dimensional terrain model, extracts terrain features from the three-dimensional terrain model, forms feature extraction results, configures a main drainage channel according to the feature extraction results, and reshapes the terrain to optimize the channel, then updates the channel information, establishes secondary watershed areas based on elevation distribution analysis, locates water accumulation concerns in these areas, sets water accumulation concern values, uses water accumulation concern values ​​and secondary watershed areas to perform grid segmentation, establishes a distributed drainage network in combination with slope and flow direction analysis, configures field micro-drainage units according to the terrain feature extraction results, and connects them to the distributed drainage network, establishes a three-layer waterlogging drainage model based on the main drainage channel, the distributed drainage network, and the field micro-drainage units, and performs joint drainage management and other technical means, thereby achieving the technical effect of optimizing the design of the drainage system, improving drainage efficiency, ensuring that accumulated water in farmland can be discharged in a timely manner, and reducing the occurrence of waterlogging disasters.

[0043] In a possible implementation, the three-layer waterlogging drainage model is used for joint drainage management, and step S700 further includes step S710, calling water volume monitoring sensors to obtain water volume monitoring data of the target area. Specifically, the water volume monitoring sensors are deployed at key locations in the target area, such as drainage channels, secondary water catchment areas, field micro-drainage units, etc. These sensors can monitor and record water volume data in real time, including but not limited to water level height, water flow speed, rainfall, etc. The sensors send the collected water volume data to the central control system or data processing center wirelessly or wiredly.

[0044] Step S720, the water volume monitoring data is sent to the three-layer waterlogging drainage model, a joint drainage analysis is performed, a joint scheduling scheme is generated according to the results of the joint drainage analysis, and the joint drainage management is performed with the joint scheduling scheme. Specifically, the sensor data is input into the three-layer waterlogging drainage model, and the model uses built-in algorithms and rules to process and analyze the received water volume data to evaluate the efficiency and possible problems of the current drainage system. Based on the analysis results, the model automatically generates one or more joint scheduling schemes to optimize drainage efficiency and reduce waterlogging risks. The generated joint scheduling scheme is converted into specific operation instructions, such as adjusting the operating status of the drainage pump, opening or closing the drainage gate, etc., to achieve joint drainage management. This implementation method obtains water volume data in real time through water volume monitoring sensors, ensures the real-time and accuracy of drainage management, and responds to possible waterlogging risks in a timely manner. At the same time, the three-layer waterlogging drainage model and intelligent algorithm are used to perform joint drainage analysis, which reduces manual intervention and improves the scientificity and accuracy of drainage management.

[0045] In a possible implementation, step S700 further includes step S730, which performs drainage warning threshold trigger analysis on the combined drainage analysis result. Specifically, in the three-layer waterlogging drainage model, a series of warning indicators and corresponding thresholds related to drainage conditions are preset, such as water level, waterlogging area, drainage rate, etc. The model compares the combined drainage analysis results (including water level, flow rate, waterlogging area, etc.) with the preset warning thresholds. If any one or more indicators exceed the preset threshold, the drainage warning is triggered.

[0046] Step S740, reports a drainage attention warning according to the trigger analysis result, and performs continuous monitoring and management with the drainage attention warning. Specifically, once the drainage warning is triggered, the automatic alarm system is immediately activated, and the warning information is sent to the preset receiving end through various communication means (such as SMS, email, APP push, etc.). According to the severity of the warning information, take corresponding emergency response measures, such as starting backup drainage equipment, adjusting drainage strategies, etc. After the warning is issued, the continuous monitoring system will monitor the drainage status of the target area in real time to ensure that the problem is responded to and handled in a timely manner. This implementation method can issue a warning in advance before the drainage problem occurs through the drainage warning threshold trigger analysis, providing relevant personnel with sufficient time to take measures to avoid or reduce the occurrence of waterlogging disasters, thereby enhancing the safety and reliability of the drainage system.

[0047] In the above, refer to Figure 1 A multi-process joint control drainage management method according to an embodiment of the present invention is described in detail. Figure 2 A drainage management system with multi-process joint regulation according to an embodiment of the present invention is described.

[0048] A multi-pass joint control drainage management system according to an embodiment of the present invention is used to solve the technical problems of the lack of systematic planning in the existing farmland drainage management, resulting in low drainage efficiency, inability to drain farmland water in time, and farmland facing the threat of waterlogging disasters, so as to achieve the technical effect of optimizing the design of the drainage system, improving drainage efficiency, ensuring that farmland water can be drained in time, and reducing the occurrence of waterlogging disasters. A multi-pass joint control drainage management system includes: a terrain data acquisition module 10, a terrain feature extraction module 20, a main drainage channel configuration module 30, a water accumulation concern value establishment module 40, a distributed drainage network establishment module 50, a field micro-drainage unit configuration module 60, and a joint drainage management module 70.

[0049] The terrain data acquisition module 10 is used to collect terrain data of the target area using an unmanned aerial vehicle or a laser radar to establish a three-dimensional terrain model; the terrain feature extraction module 20 is used to extract terrain features from the three-dimensional terrain model and establish terrain feature extraction results; the main drainage channel configuration module 30 is used to configure the main drainage channel using the terrain feature extraction results, and to reshape the main drainage channel based on the terrain data, and update the main drainage channel according to the terrain reshaping results; the water accumulation concern value establishment module 40 is used to perform elevation distribution analysis based on the three-dimensional terrain model, establish a secondary water catchment area based on the elevation distribution analysis results, and perform terrain reconstruction on the secondary water catchment area based on the terrain data. The waterlogging concern positioning based on the terrain feature extraction result is used to establish the waterlogging concern value; the distributed drainage network establishment module 50 is used to use the waterlogging concern value and the secondary catchment area to perform grid segmentation, and establish a distributed drainage network based on the slope flow direction analysis; the field micro-drainage unit configuration module 60 is used to use the terrain feature extraction result to configure the field micro-drainage unit, and establish the network connection between the field micro-drainage unit and the distributed drainage network; the joint drainage management module 70 is used to establish a three-layer waterlogging drainage model with the main drainage channel, the distributed drainage network and the field micro-drainage unit, and use the three-layer waterlogging drainage model to perform joint drainage management.

[0050] The specific configuration of the main drainage channel configuration module 30 will be described in detail below. As described above, the main drainage channel is configured using the terrain feature extraction result, and the main drainage channel configuration module 30 may further include: a natural water confluence point establishment unit for identifying the water confluence area based on the terrain feature extraction result, establishing a natural water confluence point, and setting a natural water outlet using the terrain feature extraction result; a main drainage channel path optimization unit for taking the natural water confluence point as the starting point and the natural water outlet as the end point, performing path optimization of the main drainage channel through a path fitness function, and establishing a path optimization result; and a main drainage channel configuration unit for configuring the main drainage channel using the path optimization result.

[0051] The main drainage channel path optimization unit may further include: a path fitness function construction subunit for constructing a path fitness function, and the path fitness function is as follows: ;

[0052] in, Characterizes the path fitness value, Characterizes the maximum length of possible paths, is the total number of nodes on the path, is the node number, Characterization Node and The distance between nodes, Represents the total number of obstacles, Number the obstacle. Characterization The overlap area between the obstacle and the path, Characterizes the total area of ​​the path, Characterizes the actual flow velocity of the path, Characterize the target flow rate of the design, Represents the total area of ​​low-lying areas covered by the current path, Represents the total area of ​​low-lying areas, , , , They are the weight factors for path length, obstacle avoidance, flow velocity, and low-lying area coverage.

[0053] The specific configuration of the distributed drainage network establishment module 50 will be described in detail below. As described above, the water accumulation concern value and the secondary catchment area are used to perform grid segmentation, and a distributed drainage network is established according to the slope flow direction analysis. The distributed drainage network establishment module 50 may further include: an adaptive grid update unit for configuring calibration grid parameters, adaptive grid update using the water accumulation concern value and the calibration grid parameters, and establishing an adaptive grid update result; a grid segmentation unit for performing grid segmentation on the secondary catchment area using the adaptive grid update result, and establishing a grid segmentation result; a slope flow direction analysis unit for performing slope flow direction analysis on the grid segmentation result, and establishing a flow path; and a distributed drainage network establishment unit for establishing the distributed drainage network according to the flow path and the grid segmentation result.

[0054] The specific configuration of the field micro-drainage unit configuration module 60 will be described in detail below. As described above, the field micro-drainage unit is configured using the terrain feature extraction result, and the field micro-drainage unit configuration module 60 may further include: a field feature set construction unit for locating the field according to the terrain feature extraction result, and constructing a field feature set, the field feature set including terrain features, soil property features, and crop type features; a drainage fitting unit for inputting the field feature set into the drainage fitting channel for drainage fitting, and establishing an initial field micro-drainage unit; a drainage effect evaluation unit for evaluating the drainage effect of the initial field micro-drainage unit based on the position importance, and establishing evaluation feedback; a micro-terrain reshaping unit for reshaping the micro-terrain according to the evaluation feedback, and generating a field micro-drainage unit according to the micro-terrain reshaping result.

[0055] The specific configuration of the joint drainage management module 70 will be described in detail below. As described above, the three-layer waterlogging drainage model is used to perform joint drainage management, and the joint drainage management module 70 may further include: a water volume monitoring data acquisition unit for calling a water volume monitoring sensor to obtain water volume monitoring data of the target area; a joint drainage analysis unit for sending the water volume monitoring data to the three-layer waterlogging drainage model, performing joint drainage analysis, generating a joint scheduling plan based on the joint drainage analysis results, and performing joint drainage management with the joint scheduling plan.

[0056] Among them, the joint drainage management module 70 can further include: a drainage warning threshold trigger analysis unit for performing a drainage warning threshold trigger analysis on the joint drainage analysis result; a continuous monitoring management unit for reporting a drainage attention warning according to the trigger analysis result, and performing continuous monitoring and management with the drainage attention warning.

[0057] A multi-process joint control drainage management system provided in an embodiment of the present invention can execute a multi-process joint control drainage management method provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0058] Although the present application makes various references to certain modules in the system according to the embodiments of the present application, any number of different modules may be used and run on the user terminal and / or server, and the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0059] The above specific implementation manner does not constitute a limitation to the protection scope of the present application. It should be understood by those skilled in the art that various modifications, combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application. In some cases, the actions or steps recorded in the present application can be performed in an order different from that in the embodiment and can still achieve the desired results. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Claims

1. A drainage management method with multi-process joint regulation, characterized in that: The method comprises: Use drones or laser radar to collect terrain data of the target area and build a three-dimensional terrain model; Extracting terrain features from the three-dimensional terrain model and establishing terrain feature extraction results; The main drainage channel is configured by using the terrain feature extraction result, and the main drainage channel is reshaped based on the terrain data, and the main drainage channel is updated according to the terrain reshaping result; Performing elevation distribution analysis based on the three-dimensional terrain model, establishing secondary watershed areas based on the elevation distribution analysis results, locating waterlogging concerns in the secondary watershed areas based on the terrain feature extraction results, and establishing waterlogging concern values; Grid segmentation is performed using the water accumulation concern value and the secondary catchment area, and a distributed drainage network is established according to slope flow direction analysis; Using the terrain feature extraction result to configure a field micro-drainage unit, and establishing a network connection between the field micro-drainage unit and the distributed drainage network; A three-layer waterlogging drainage model is established with the main drainage channel, the distributed drainage network and the field micro-drainage unit, and the three-layer waterlogging drainage model is used to perform joint drainage management; The configuring of the main drainage channel using the terrain feature extraction result includes: Based on the terrain feature extraction results, water catchment areas are identified, natural water catchment points are established, and natural water outlets are set using the terrain feature extraction results; Taking the natural water confluence point as the starting point and the natural water outlet as the end point, the path optimization of the main drainage channel is performed through the path fitness function to establish the path optimization result; configuring the main drainage channel according to the path optimization result; The path fitness function is as follows: ； in, Characterizes the path fitness value, Characterizes the maximum length of possible paths, is the total number of nodes on the path, is the node number, Characterization Node and The distance between nodes, Represents the total number of obstacles, Number the obstacle. Characterization The overlap area between the obstacle and the path, Characterizes the total area of ​​the path, Characterizes the actual flow velocity of the path, Characterize the target flow rate of the design, Represents the total area of ​​low-lying areas covered by the current path, Represents the total area of ​​low-lying areas, , , , They are the weight factors for path length, obstacle avoidance, flow velocity, and low-lying area coverage.

2. A drainage management method with multi-process joint control as claimed in claim 1, characterized in that: The method of using the water accumulation concern value and the secondary catchment area to perform grid segmentation and establishing a distributed drainage network according to slope flow direction analysis includes: Configure calibration grid parameters, perform adaptive grid update using the water accumulation concern value and the calibration grid parameters, and establish an adaptive grid update result; Utilizing the adaptive grid update result to perform grid segmentation on the secondary catchment area, and establishing a grid segmentation result; Performing slope flow direction analysis on the grid segmentation result to establish a flow path; The distributed drainage network is established according to the flow path and the grid segmentation result.

3. A drainage management method with multi-process joint control as claimed in claim 1, characterized in that: The method of configuring a field micro-drainage unit using the terrain feature extraction result includes: The field is located according to the terrain feature extraction result, and a field feature set is constructed, wherein the field feature set includes terrain features, soil property features, and crop type features; Input the field feature set into the drainage fitting channel for drainage fitting, and establish an initial field micro-drainage unit; Conduct drainage effect evaluation on the initial field micro-drainage unit based on location importance, and establish evaluation feedback; Micro-topography is reshaped according to the evaluation feedback, and field micro-drainage units are generated according to the micro-topography reshaping results.

4. A drainage management method with multi-process joint control as claimed in claim 1, characterized in that: The combined drainage management using the three-layer waterlogging drainage model includes: Calling a water volume monitoring sensor to obtain water volume monitoring data of the target area; The water volume monitoring data is sent to the three-layer waterlogging drainage model, a joint drainage analysis is performed, a joint scheduling plan is generated according to the results of the joint drainage analysis, and joint drainage management is performed according to the joint scheduling plan.

5. A drainage management method with multi-process joint control as claimed in claim 4, characterized in that: The method further comprises: Perform drainage warning threshold trigger analysis on the combined drainage analysis result; A drainage attention warning is issued based on the trigger analysis result, and continuous monitoring and management are carried out based on the drainage attention warning.

6. A multi-process joint control drainage management system, characterized in that: The system is used to implement a multi-process joint regulation drainage management method according to any one of claims 1 to 5, and the system comprises: A terrain data acquisition module, which is used to collect terrain data of a target area using a drone or a laser radar to establish a three-dimensional terrain model; A terrain feature extraction module, the terrain feature extraction module is used to extract terrain features from the three-dimensional terrain model and establish a terrain feature extraction result; A main drainage channel configuration module, the main drainage channel configuration module is used to configure the main drainage channel using the terrain feature extraction result, and to perform terrain reshaping on the main drainage channel based on terrain data, and to update the main drainage channel according to the terrain reshaping result; A water accumulation concern value establishment module, the water accumulation concern value establishment module is used to perform elevation distribution analysis based on a three-dimensional terrain model, establish a secondary water catchment area based on the elevation distribution analysis result, perform water accumulation concern positioning on the secondary water catchment area based on the terrain feature extraction result, and establish a water accumulation concern value; A distributed drainage network establishment module, the distributed drainage network establishment module is used to perform grid segmentation using the water accumulation concern value and the secondary catchment area, and establish a distributed drainage network according to slope flow direction analysis; A field micro-drainage unit configuration module, the field micro-drainage unit configuration module is used to configure the field micro-drainage unit using the terrain feature extraction result, and establish network connectivity between the field micro-drainage unit and the distributed drainage network; A joint drainage management module, wherein the joint drainage management module is used to establish a three-layer waterlogging drainage model with the main drainage channel, the distributed drainage network and the field micro-drainage unit, and to perform joint drainage management using the three-layer waterlogging drainage model; The main drainage channel configuration module further includes: a natural water confluence point establishment unit for identifying the water confluence area based on the terrain feature extraction result, establishing the natural water confluence point, and setting the natural water outlet using the terrain feature extraction result; a main drainage channel path optimization unit for taking the natural water confluence point as the starting point and the natural water outlet as the end point, performing path optimization of the main drainage channel through the path fitness function, and establishing a path optimization result; a main drainage channel configuration unit for configuring the main drainage channel using the path optimization result; The main drainage channel path optimization unit further includes: a path fitness function construction subunit for constructing a path fitness function, and the path fitness function is as follows: ； in, Characterizes the path fitness value, Characterizes the maximum length of possible paths, is the total number of nodes on the path, is the node number, Characterization Node and The distance between nodes, Represents the total number of obstacles, Number the obstacle. Characterization The overlap area between the obstacle and the path, Characterizes the total area of ​​the path, Characterizes the actual flow velocity of the path, Characterize the target flow rate of the design, Represents the total area of ​​low-lying areas covered by the current path, Represents the total area of ​​low-lying areas, , , , They are the weight factors for path length, obstacle avoidance, flow velocity, and low-lying area coverage.

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