A planning method for offshore artificial island construction based on complex hydrodynamic environment assessment

Abstract

The present invention discloses a method for planning the construction of an offshore artificial island based on a complex hydrodynamic environment assessment. Satellite data of a target water area is acquired through remote sensing technology and a GIS system, and a three-dimensional water area model is constructed. A plurality of sub-areas are divided in the water area model. Macroscopic and microscopic water environment parameters such as waves, tides, silt, and topography of each sub-area are measured and recorded through a GIS system and a water area monitoring device. In combination with the water area model, a multi-scale hydrodynamic model is constructed, and LSTM is applied to predict short-term hydrodynamic characteristics. Multiple sets of artificial island construction plans are simulated in the water area model, and the hydrodynamic model is used to simulate the tidal field and wave propagation, and the optimal construction plan is screened out in combination with the sensitive area assessment. Through the present invention, the efficiency and environmental benefits of artificial island construction can be effectively improved, and the present invention has strong practicability and broad application prospects. It can be applied to various offshore artificial island construction projects to promote the development of the marine economy.

Description

Technical Field

[0001] The present invention relates to the field of hydrodynamic environment data analysis, and more specifically, to an offshore artificial island construction planning method based on complex hydrodynamic environment assessment. Background Art

[0002] At present, the construction of offshore artificial islands has gradually become popular. However, the complex hydrodynamic environment poses a major challenge to the stability of artificial islands. Traditional planning methods lack comprehensive consideration of the coupling of multiple factors such as waves, tides, and sediment, making it difficult to ensure the safety and stability of artificial islands. At the same time, in the existing artificial island construction technology, there is a lack of consideration of factors such as waves, tides, and sediment, a lack of numerical simulation and theoretical analysis processes, and a lack of effective prediction of water environment parameters, resulting in low accuracy in environmental assessment of construction plans, making it difficult to achieve efficient and stable construction of artificial islands. Summary of the invention

[0003] The present invention overcomes the defects of the prior art and proposes a method for planning the construction of an offshore artificial island based on complex hydrodynamic environment assessment.

[0004] A first aspect of the present invention provides an offshore artificial island construction planning method based on complex hydrodynamic environment assessment, comprising:

[0005] Through remote sensing technology and GIS system, satellite remote sensing data of target waters are obtained, and three-dimensional visual water model is constructed through satellite remote sensing data;

[0006] A preset area range is set based on the target artificial island area, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range;

[0007] Through the GIS system and water monitoring equipment, the water environment parameters based on waves, tides, sediments, and topography of the sub-areas are measured and recorded to obtain the first water environment parameters based on the macro level and the second water environment parameters based on the micro level;

[0008] The first water area environmental parameters and the second water area environmental parameters are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with the water area model. In the process of hydrodynamic model analysis, the short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and the environmental sensitivity calculation and analysis of the water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked.

[0009] In the water area model, simulation construction is carried out based on multiple sets of artificial island construction plans, tidal field and wave propagation simulation is carried out through the hydrodynamic model, and multiple sets of water area environment simulation data are generated. The rationality of the plan is combined with the sensitivity area assessment plan to screen out the optimal artificial island construction plan.

[0010] In this scheme, the satellite remote sensing data of the target water area is obtained through remote sensing technology and GIS system, and a three-dimensional visual water area model is constructed through the satellite remote sensing data. The satellite remote sensing data includes the topography of the target water area, geomorphic spatial information, marine meteorological data and marine hydrological data.

[0011] In this solution, the preset area range is set based on the target artificial island area, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range, specifically:

[0012] Based on the size of the target artificial island, an upper and lower limit range is set as the preset area range;

[0013] In the water area model, the target water area is divided into multiple sub-areas, and the size of the sub-areas is ensured to be within the preset area range.

[0014] In this scheme, the GIS system and the water monitoring device are used to measure and record the water environment parameters based on waves, tides, sediments, and terrain in the sub-area, and obtain the first water environment parameters based on the macro level and the second water environment parameters based on the micro level, specifically:

[0015] In a preset time period, the GIS system and water monitoring device are used to measure and record the water environment parameters based on waves, tides, sediments, and topography for each sub-area, and the first water environment parameters based on the macro level and the second water environment parameters based on the micro level are obtained respectively;

[0016] Each sub-area includes corresponding first water area environment parameters and second water area environment parameters.

[0017] In this scheme, the first water area environmental parameter and the second water area environmental parameter are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with the water area model. In the process of hydrodynamic model analysis, the short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and the environmental sensitivity calculation and analysis of the water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked, specifically:

[0018] The first water area environmental parameter and the second water area environmental parameter are used as initial data to construct a hydrodynamic model;

[0019] The results of the hydrodynamic model analysis are visualized through the water area model;

[0020] In the process of hydrodynamic model analysis, a sub-area is used as the analysis unit, wave data, tidal data and sedimentation data are extracted from the initial data, and the extracted data are serialized based on the time dimension to form water environment serialization data;

[0021] Build a LSTM-based prediction model, import the serialized data of the water environment into the prediction model to predict short-term hydrodynamic characteristics, and generate hydrodynamic characteristic prediction data;

[0022] Set preset weights based on three parameters: wave, tide, and sediment;

[0023] Based on the sensitive water environment indicators, the hydrodynamic characteristics prediction data is analyzed based on the three parameters of wave, tide and sediment to obtain three deviation values. The sensitivity is generated by weighted average of the three deviation values ​​with preset weights.

[0024] Calculate the sensitivity of each sub-region;

[0025] Each sub-area is divided into sensitivity levels according to sensitivity, and sensitive areas and non-sensitive areas are screened out.

[0026] In this scheme, in the water area model, simulation construction is carried out based on multiple sets of artificial island construction schemes, tidal field and wave propagation simulation is carried out through the hydrodynamic model, and multiple sets of water area environment simulation data are generated, combined with the rationality of the sensitive area assessment scheme and the optimal artificial island construction scheme is screened out, specifically:

[0027] Generate initial model parameters based on the water area model based on multiple sets of artificial island construction plans;

[0028] The initial parameters of the model are imported into the water area model to display the scheme, and the tidal field simulation, wave propagation simulation and water flow and sediment simulation around the artificial island are carried out through the hydrodynamic model in combination with the initial data. The three simulation processes are simulated based on the three data dimensions of waves, tidal currents and sediments, and multiple sets of water area environment simulation data are generated;

[0029] Through preset simulation indicators, multiple sets of water environment simulation data are evaluated, and the environmental adaptability of each artificial island construction plan is obtained;

[0030] Based on multiple sets of artificial island construction plans, obtain the location information and area of ​​the artificial island of each plan;

[0031] Through the location information and area of ​​artificial islands, combined with the water area model, the overlap area of ​​each artificial island construction plan in the sensitive area is determined, and the proportion of the overlapping area to the total area of ​​the artificial island is calculated to obtain the proportion of the sensitive area;

[0032] The weighted average of the environmental adaptability and the proportion of sensitive areas is calculated to obtain the construction rationality, and the optimal artificial island construction plan is screened out based on the construction rationality.

[0033] The second aspect of the present invention further provides an offshore artificial island construction planning system based on complex hydrodynamic environment assessment, the system comprising: a memory, a processor, the memory comprising an offshore artificial island construction planning program based on complex hydrodynamic environment assessment, the offshore artificial island construction planning program based on complex hydrodynamic environment assessment when executed by the processor implements the following steps:

[0034] Through remote sensing technology and GIS system, satellite remote sensing data of target waters are obtained, and three-dimensional visual water model is constructed through satellite remote sensing data;

[0035] A preset area range is set based on the target artificial island area, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range;

[0036] Through the GIS system and water monitoring equipment, the water environment parameters based on waves, tides, sediments, and topography of the sub-areas are measured and recorded to obtain the first water environment parameters based on the macro level and the second water environment parameters based on the micro level;

[0037] The first water area environmental parameters and the second water area environmental parameters are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with the water area model. In the process of hydrodynamic model analysis, the short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and the environmental sensitivity calculation and analysis of the water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked.

[0038] In the water area model, simulation construction is carried out based on multiple sets of artificial island construction plans, tidal field and wave propagation simulation is carried out through the hydrodynamic model, and multiple sets of water area environment simulation data are generated. The rationality of the plan is combined with the sensitivity area assessment plan to screen out the optimal artificial island construction plan.

[0039] The third aspect of the present invention also provides a computer-readable storage medium, which includes an offshore artificial island construction planning program based on complex hydrodynamic environment assessment. When the offshore artificial island construction planning program based on complex hydrodynamic environment assessment is executed by a processor, the steps of the offshore artificial island construction planning method based on complex hydrodynamic environment assessment as described in any one of the above items are implemented.

[0040] The present invention discloses a method for planning the construction of an offshore artificial island based on a complex hydrodynamic environment assessment. Satellite data of a target water area is acquired through remote sensing technology and a GIS system, and a three-dimensional water area model is constructed. A plurality of sub-areas are divided in the water area model. Macroscopic and microscopic water environment parameters such as waves, tides, silt, and topography of each sub-area are measured and recorded through a GIS system and a water area monitoring device. In combination with the water area model, a multi-scale hydrodynamic model is constructed, and LSTM is applied to predict short-term hydrodynamic characteristics. Multiple sets of artificial island construction plans are simulated in the water area model, and the hydrodynamic model is used to simulate the tidal field and wave propagation, and the optimal construction plan is screened out in combination with the sensitive area assessment. Through the present invention, the efficiency and environmental benefits of artificial island construction can be effectively improved, and the present invention has strong practicability and broad application prospects. It can be applied to various offshore artificial island construction projects to promote the development of the marine economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A flow chart showing a method for planning offshore artificial island construction based on complex hydrodynamic environment assessment according to the present invention is shown;

[0042] Figure 2 A block diagram of an offshore artificial island construction planning system based on complex hydrodynamic environment assessment according to the present invention is shown. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0045] Figure 1 A flow chart of an offshore artificial island construction planning method based on complex hydrodynamic environment assessment according to the present invention is shown.

[0046] like Figure 1 As shown, the first aspect of the present invention provides a method for planning the construction of an offshore artificial island based on complex hydrodynamic environment assessment, comprising:

[0047] S102, using remote sensing technology and GIS system, obtain satellite remote sensing data of the target water area, and construct a three-dimensional visualized water area model through satellite remote sensing data;

[0048] S104, setting a preset area range based on the area of ​​the target artificial island, dividing a plurality of sub-areas in the water area model, and ensuring that the size of the sub-areas is within the preset area range;

[0049] S106, measuring and recording water environment parameters based on waves, tides, sediments, and topography in the sub-area through the GIS system and the water monitoring device, and obtaining a first water environment parameter based on a macro level and a second water environment parameter based on a micro level;

[0050] S108, using the first water area environmental parameter and the second water area environmental parameter as initial data, and combining with the water area model to construct a multi-scale hydrodynamic model, in the process of hydrodynamic model analysis, based on LSTM, short-term hydrodynamic characteristics of each sub-area are predicted, and by using preset weights, environmental sensitivity calculation and analysis of water area environmental indicators are performed, and sensitive areas and non-sensitive areas are dynamically marked;

[0051] S110, in the water area model, simulated construction is carried out based on multiple sets of artificial island construction plans, tidal field and wave propagation simulation is carried out through the hydrodynamic model, and multiple sets of water area environment simulation data are generated, combined with the rationality of the sensitive area assessment plan to screen out the optimal artificial island construction plan.

[0052] According to an embodiment of the present invention, satellite remote sensing data of the target water area is obtained through remote sensing technology and a GIS system, and a three-dimensional visualized water area model is constructed through the satellite remote sensing data. The satellite remote sensing data includes the topography of the target water area, geomorphic spatial information, marine meteorological data, and marine hydrological data.

[0053] It should be noted that satellite remote sensing data specifically conducts data analysis and model building on the target waters from a macro perspective.

[0054] According to an embodiment of the present invention, the preset area range is set based on the area of ​​the target artificial island, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range, specifically:

[0055] Based on the size of the target artificial island, an upper and lower limit range is set as the preset area range;

[0056] In the water area model, the target water area is divided into multiple sub-areas, and the size of the sub-areas is ensured to be within the preset area range.

[0057] It should be noted that the preset area range is the range set by the user, and the upper and lower limits are set with the target artificial island area as the middle value. The upper and lower limits are set by the user. The main purpose is to divide the target waters into multiple smaller analysis units for subsequent regional monitoring and analysis and screening of sensitive areas.

[0058] According to an embodiment of the present invention, the GIS system and the water area monitoring device are used to measure and record the water area environmental parameters based on waves, tides, silt, and terrain in the sub-area, and obtain the first water area environmental parameters based on the macro level and the second water area environmental parameters based on the micro level, specifically:

[0059] In a preset time period, the GIS system and water monitoring device are used to measure and record the water environment parameters based on waves, tides, sediments, and topography for each sub-area, and the first water environment parameters based on the macro level and the second water environment parameters based on the micro level are obtained respectively;

[0060] Each sub-area includes corresponding first water area environment parameters and second water area environment parameters.

[0061] It should be noted that the first water area environmental parameter and the second water area environmental parameter are hydrological data collected in a time period, including data such as waves, tides, silt, and terrain, through which changes in the corresponding hydrological state can be analyzed. The first water area environmental parameter is obtained through the GIS system and the corresponding remote sensing data, and the hydrological characteristic data is collected at a macro level, generally based on hydrological data in a large area, such as the overall trend of waves, the flow direction of tides between regions, etc. The second water area environmental parameter is obtained through a water area monitoring device, including fixed-point monitoring of the corresponding sub-area, and collecting corresponding wave, tide, silt, terrain and other data. Compared with the first water area environmental parameter, it is hydrological data collected from a micro perspective. The preset time period is a historical time period.

[0062] According to an embodiment of the present invention, the first water area environmental parameter and the second water area environmental parameter are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with a water area model. In the process of hydrodynamic model analysis, short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and environmental sensitivity calculation and analysis of water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked, specifically:

[0063] The first water area environmental parameter and the second water area environmental parameter are used as initial data to construct a hydrodynamic model;

[0064] The results of the hydrodynamic model analysis are visualized through the water area model;

[0065] In the process of hydrodynamic model analysis, a sub-area is used as the analysis unit, wave data, tidal data and sedimentation data are extracted from the initial data, and the extracted data are serialized based on the time dimension to form water environment serialization data;

[0066] Build a LSTM-based prediction model, import the serialized data of the water environment into the prediction model to predict short-term hydrodynamic characteristics, and generate hydrodynamic characteristic prediction data;

[0067] Set preset weights based on three parameters: wave, tide, and sediment;

[0068] Based on the sensitive water environment indicators, the hydrodynamic characteristics prediction data is analyzed based on the three parameters of wave, tide and sediment to obtain three deviation values. The sensitivity is generated by weighted average of the three deviation values ​​with preset weights.

[0069] Calculate the sensitivity of each sub-region;

[0070] Each sub-area is divided into sensitivity levels according to sensitivity, and sensitive areas and non-sensitive areas are screened out.

[0071] It should be noted that in the prediction process, the prediction data process includes wave data, tidal data and silt deposition data, that is, the wave period, direction, wave height, tidal speed, flow direction, silt seabed deposition rate and other parameters are serialized and predicted. Through short-term prediction, sensitive areas are dynamically marked. In the next analysis cycle, sensitive areas can be dynamically predicted and adjusted based on the prediction process. The hydrodynamic model considers multi-scale water environment parameters to analyze and predict current data. The hydrodynamic model is a data analysis model. When displaying data, it is performed through the water model. The higher the sensitivity, the worse the environment in the area, the less suitable it is for artificial island construction, and the construction in the more sensitive area will have a greater negative impact on the environment.

[0072] In short-term prediction, the prediction period is a short-term time period set by the user. Here, the accuracy of the prediction model in short-term prediction and the analysis requirements of the embodiment of the present invention for short-term sensitive areas are taken into consideration, and the short-term prediction model is adopted to analyze the sensitive areas.

[0073] According to an embodiment of the present invention, in the water area model, simulation construction is performed based on multiple sets of artificial island construction schemes, tidal field and wave propagation simulation are performed through a hydrodynamic model, and multiple sets of water area environment simulation data are generated, combined with the rationality of the sensitive area assessment scheme and the optimal artificial island construction scheme is screened out, specifically:

[0074] Generate initial model parameters based on the water area model based on multiple sets of artificial island construction plans;

[0075] The initial parameters of the model are imported into the water area model to display the scheme, and the tidal field simulation, wave propagation simulation and water flow and sediment simulation around the artificial island are carried out through the hydrodynamic model in combination with the initial data. The three simulation processes are simulated based on the three data dimensions of waves, tidal currents and sediments, and multiple sets of water area environment simulation data are generated;

[0076] Through preset simulation indicators, multiple sets of water environment simulation data are evaluated, and the environmental adaptability of each artificial island construction plan is obtained;

[0077] Based on multiple sets of artificial island construction plans, obtain the location information and area of ​​the artificial island of each plan;

[0078] Through the location information and area of ​​artificial islands, combined with the water area model, the overlap area of ​​each artificial island construction plan in the sensitive area is determined, and the proportion of the overlapping area to the total area of ​​the artificial island is calculated to obtain the proportion of the sensitive area;

[0079] The weighted average of the environmental adaptability and the proportion of sensitive areas is calculated to obtain the construction rationality, and the optimal artificial island construction plan is screened out based on the construction rationality.

[0080] It should be noted that each set of artificial island construction schemes corresponds to a set of model initial parameters, which are used to display the construction schemes and analyze the hydrodynamic characteristics in the water area model. The artificial island construction schemes include different artificial island plane layout schemes, including different island sizes, shapes, arrangements and other combination schemes. Through simulation data, the impact on the tidal field of the surrounding sea area can be obtained, and the impact of factors such as island size, shape, arrangement and other factors on the distribution of tidal velocity, flow direction and eddy currents can be further analyzed. By simulating different island arrangement schemes, their impact on the tidal flow direction and speed can be evaluated, so as to select the best island arrangement method to reduce interference with the surrounding sea area. For example, screening out a better scheme can reduce the tidal velocity and coastline erosion speed by a certain proportion, reducing the negative impact of artificial island construction on the marine environment. The preset simulation indicators include simulation evaluation indicators for the three data dimensions of waves, tides and sediments, and the corresponding environmental adaptability is obtained through indicator reference analysis. The environmental adaptability reflects the favorable impact of the construction scheme on the environment and the rationality of the construction. This value is obtained based on the simulation analysis of hydrodynamic characteristics.

[0081] Furthermore, the present invention selects the optimal solution by comprehensively analyzing the environmental adaptability and the sensitivity of the construction area. The proportion of sensitive areas reflects the proportion of a solution layout to sensitive areas. The larger the value, the greater the negative impact on the water environment.

[0082] The calculation formula for construction rationality is as follows:

[0083] ,

[0084] In the formula, To construct reasonableness, K1 and K2 are preset weights, E is the proportion of sensitive areas, and P is environmental adaptability.

[0085] In the process of simulating the hydrodynamic model, the Delft3D software platform can be used for simulation. In the analysis of relevant parameters of waves, tides, and sediments, the hydrodynamic characteristics can be predicted based on the LSTM prediction model and used as reference simulation data. In the simulation process, including tidal field simulation based on regional scale, wave propagation simulation based on local scale, and water flow and sediment simulation around artificial islands based on micro scale, construction simulation and optimization analysis can be effectively carried out from multiple angles. This multi-scale model can more comprehensively simulate the impact of artificial island construction on the hydrodynamic environment of the sea area, and provide a scientific basis for optimizing the layout and design of artificial islands.

[0086] According to an embodiment of the present invention, the construction is based on the LSTM prediction model and further includes:

[0087] Performing data cleaning, data outlier detection and data standardization preprocessing on the first water area environmental parameter and the second water area environmental parameter;

[0088] Based on the three parameter dimensions of wave, tide and sediment, data of the first water area environmental parameters and the second water area environmental parameters are extracted, and the extracted data are serialized based on the time dimension to obtain the first sequence data and the second sequence data;

[0089] Build a prediction model based on LSTM, divide the first sequence data into training data set and test set, import them into the prediction model for prediction training, set the time step, use the current time step sequence as input feature, and use the next time step sequence as target output for prediction training;

[0090] The second sequence data is imported into the prediction model as a validation data set. After the prediction model is trained once, the prediction results of the model are evaluated through the validation data. At the same time, the weight and bias of the prediction model are adjusted.

[0091] Based on multiple training processes until the prediction model passes all validation data sets, a trained prediction model is obtained;

[0092] Through the prediction model, water environment parameters are collected in real time and imported into the prediction model to predict short-term hydrodynamic characteristics and dynamically mark sensitive areas and non-sensitive areas;

[0093] In multiple construction cycles of actual artificial islands, sensitive areas and non-sensitive areas are dynamically marked based on the current cycle, and the number growth rate and area growth rate of sensitive areas in the current cycle and the previous construction cycle are calculated, and the sensitive area growth index is generated based on the number growth rate and area growth rate;

[0094] Based on multiple construction cycles, the changing trend of the sensitive area growth index is calculated in real time, and real-time early warning assessment of artificial island construction is carried out.

[0095] It should be noted that in the construction of the prediction model, due to the small changes in terrain and the difficulty in predicting data, only three parameters based on waves, tides, and sediments were selected for model training. The first sequence data and the second sequence data correspond to the first water environment parameters and the second water environment parameters, respectively, and the sequence data include sequence data based on the three parameter dimensions of waves, tides, and sediments. The sensitive area growth index is equal to the weighted average of the quantity growth rate and the area growth rate, and the average value is generally taken. The actual construction of artificial islands includes multiple construction cycles.

[0096] It is worth mentioning that in the traditional artificial construction and water environment analysis, there is a lack of effective prediction of water environment parameters, and there is also a lack of comprehensive analysis at the macro and micro levels, which leads to low accuracy in the assessment of environmental impacts, and at the same time, the accuracy of the assessment of construction plans is also poor. Therefore, the present invention trains the prediction model based on macro data (first water environment parameters), so that the prediction model can realize regional parameter change prediction for the water environment, and achieve a certain prediction ability at the regional macro level. At the same time, during the training process, the micro-level parameters (second water environment parameters) are introduced to adjust the model, so that the model can comprehensively learn the changes in macro data and the change characteristics of micro water environment data, improve the versatility of the prediction model, and at the same time, improve the applicability of the target water area, and can realize accurate water monitoring parameter prediction, realize subsequent effective construction simulation and accurate adjustment of construction plans, and improve construction benefits. Further, the present invention also dynamically analyzes the changes in sensitive areas, judges whether the changes in sensitive areas and non-sensitive areas meet expectations, and realizes real-time evaluation of the rationality of the construction of artificial islands at the macro level, and realizes the adjustment and optimization of plans during the construction process.

[0097] It should be noted that in the analysis and division of sensitive areas, sensitive areas can effectively reflect the macroscopic water environment conditions and water area impacts in the target waters.

[0098] Figure 2 A block diagram of an offshore artificial island construction planning system based on complex hydrodynamic environment assessment according to the present invention is shown.

[0099] The second aspect of the present invention further provides an offshore artificial island construction planning system 2 based on complex hydrodynamic environment assessment, the system comprising: a memory 21, a processor 22, the memory 21 comprising an offshore artificial island construction planning program based on complex hydrodynamic environment assessment, the offshore artificial island construction planning program based on complex hydrodynamic environment assessment when executed by the processor 22 implements the following steps:

[0100] Through remote sensing technology and GIS system, satellite remote sensing data of target waters are obtained, and three-dimensional visual water model is constructed through satellite remote sensing data;

[0101] A preset area range is set based on the target artificial island area, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range;

[0102] Through the GIS system and water monitoring equipment, the water environment parameters based on waves, tides, sediments, and topography of the sub-areas are measured and recorded to obtain the first water environment parameters based on the macro level and the second water environment parameters based on the micro level;

[0103] The first water area environmental parameters and the second water area environmental parameters are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with the water area model. In the process of hydrodynamic model analysis, the short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and the environmental sensitivity calculation and analysis of the water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked.

[0104] In the water area model, simulation construction is carried out based on multiple sets of artificial island construction plans, tidal field and wave propagation simulation is carried out through the hydrodynamic model, and multiple sets of water area environment simulation data are generated. The rationality of the plan is combined with the sensitivity area assessment plan to screen out the optimal artificial island construction plan.

[0105] According to an embodiment of the present invention, satellite remote sensing data of the target water area is obtained through remote sensing technology and a GIS system, and a three-dimensional visualized water area model is constructed through the satellite remote sensing data. The satellite remote sensing data includes the topography of the target water area, geomorphic spatial information, marine meteorological data, and marine hydrological data.

[0106] It should be noted that satellite remote sensing data specifically conducts data analysis and model building on the target waters from a macro perspective.

[0107] According to an embodiment of the present invention, the preset area range is set based on the area of ​​the target artificial island, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range, specifically:

[0108] Based on the size of the target artificial island, an upper and lower limit range is set as the preset area range;

[0109] In the water area model, the target water area is divided into multiple sub-areas, and the size of the sub-areas is ensured to be within the preset area range.

[0110] It should be noted that the preset area range is the range set by the user, and the upper and lower limits are set with the target artificial island area as the middle value. The upper and lower limits are set by the user. The main purpose is to divide the target waters into multiple smaller analysis units for subsequent regional monitoring and analysis and screening of sensitive areas.

[0111] According to an embodiment of the present invention, the GIS system and the water area monitoring device are used to measure and record the water area environmental parameters based on waves, tides, silt, and terrain in the sub-area, and obtain the first water area environmental parameters based on the macro level and the second water area environmental parameters based on the micro level, specifically:

[0112] In a preset time period, the GIS system and water monitoring device are used to measure and record the water environment parameters based on waves, tides, sediments, and topography for each sub-area, and the first water environment parameters based on the macro level and the second water environment parameters based on the micro level are obtained respectively;

[0113] Each sub-area includes corresponding first water area environment parameters and second water area environment parameters.

[0114] It should be noted that the first water area environmental parameter and the second water area environmental parameter are hydrological data collected in a time period, including data such as waves, tides, silt, and terrain, through which changes in the corresponding hydrological state can be analyzed. The first water area environmental parameter is obtained through the GIS system and the corresponding remote sensing data, and the hydrological characteristic data is collected at a macro level, generally based on hydrological data in a large area, such as the overall trend of waves, the flow direction of tides between regions, etc. The second water area environmental parameter is obtained through a water area monitoring device, including fixed-point monitoring of the corresponding sub-area, and collecting corresponding wave, tide, silt, terrain and other data. Compared with the first water area environmental parameter, it is hydrological data collected from a micro perspective. The preset time period is a historical time period.

[0115] According to an embodiment of the present invention, the first water area environmental parameter and the second water area environmental parameter are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with a water area model. In the process of hydrodynamic model analysis, short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and environmental sensitivity calculation and analysis of water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked, specifically:

[0116] The first water area environmental parameter and the second water area environmental parameter are used as initial data to construct a hydrodynamic model;

[0117] The results of the hydrodynamic model analysis are visualized through the water area model;

[0118] In the process of hydrodynamic model analysis, a sub-area is used as the analysis unit, wave data, tidal data and sedimentation data are extracted from the initial data, and the extracted data are serialized based on the time dimension to form water environment serialization data;

[0119] Build a LSTM-based prediction model, import the serialized data of the water environment into the prediction model to predict short-term hydrodynamic characteristics, and generate hydrodynamic characteristic prediction data;

[0120] Set preset weights based on three parameters: wave, tide, and sediment;

[0121] Based on the sensitive water environment indicators, the hydrodynamic characteristics prediction data is analyzed based on the three parameters of wave, tide and sediment to obtain three deviation values. The sensitivity is generated by weighted average of the three deviation values ​​with preset weights.

[0122] Calculate the sensitivity of each sub-region;

[0123] Each sub-area is divided into sensitivity levels according to sensitivity, and sensitive areas and non-sensitive areas are screened out.

[0124] It should be noted that in the prediction process, the prediction data process includes wave data, tidal data and silt deposition data, that is, the wave period, direction, wave height, tidal speed, flow direction, silt seabed deposition rate and other parameters are serialized and predicted. Through short-term prediction, sensitive areas are dynamically marked. In the next analysis cycle, sensitive areas can be dynamically predicted and adjusted based on the prediction process. The hydrodynamic model considers multi-scale water environment parameters to analyze and predict current data. The hydrodynamic model is a data analysis model. When displaying data, it is performed through the water model. The higher the sensitivity, the worse the environment in the area, the less suitable it is for artificial island construction, and the construction in the more sensitive area will have a greater negative impact on the environment.

[0125] In short-term prediction, the prediction period is a short-term time period set by the user. Here, the accuracy of the prediction model in short-term prediction and the analysis requirements of the embodiment of the present invention for short-term sensitive areas are taken into consideration, and the short-term prediction model is adopted to analyze the sensitive areas.

[0126] According to an embodiment of the present invention, in the water area model, simulation construction is performed based on multiple sets of artificial island construction schemes, tidal field and wave propagation simulation are performed through a hydrodynamic model, and multiple sets of water area environment simulation data are generated, combined with the rationality of the sensitive area assessment scheme and the optimal artificial island construction scheme is screened out, specifically:

[0127] Generate initial model parameters based on the water area model based on multiple sets of artificial island construction plans;

[0128] The initial parameters of the model are imported into the water area model to display the scheme, and the tidal field simulation, wave propagation simulation and water flow and sediment simulation around the artificial island are carried out through the hydrodynamic model in combination with the initial data. The three simulation processes are simulated based on the three data dimensions of waves, tidal currents and sediments, and multiple sets of water area environment simulation data are generated;

[0129] Through preset simulation indicators, multiple sets of water environment simulation data are evaluated, and the environmental adaptability of each artificial island construction plan is obtained;

[0130] Based on multiple sets of artificial island construction plans, obtain the location information and area of ​​the artificial island of each plan;

[0131] Through the location information and area of ​​artificial islands, combined with the water area model, the overlap area of ​​each artificial island construction plan in the sensitive area is determined, and the proportion of the overlapping area to the total area of ​​the artificial island is calculated to obtain the proportion of the sensitive area;

[0132] The weighted average of the environmental adaptability and the proportion of sensitive areas is calculated to obtain the construction rationality, and the optimal artificial island construction plan is screened out based on the construction rationality.

[0133] It should be noted that each set of artificial island construction schemes corresponds to a set of model initial parameters, which are used to display the construction schemes and analyze the hydrodynamic characteristics in the water area model. The artificial island construction schemes include different artificial island plane layout schemes, including different island sizes, shapes, arrangements and other combination schemes. Through simulation data, the impact on the tidal field of the surrounding sea area can be obtained, and the impact of factors such as island size, shape, arrangement and other factors on the distribution of tidal velocity, flow direction and eddy currents can be further analyzed. By simulating different island arrangement schemes, their impact on the tidal flow direction and speed can be evaluated, so as to select the best island arrangement method to reduce interference with the surrounding sea area. For example, screening out a better scheme can reduce the tidal velocity and coastline erosion speed by a certain proportion, reducing the negative impact of artificial island construction on the marine environment. The preset simulation indicators include simulation evaluation indicators for the three data dimensions of waves, tides and sediments, and the corresponding environmental adaptability is obtained through indicator reference analysis. The environmental adaptability reflects the favorable impact of the construction scheme on the environment and the rationality of the construction. This value is obtained based on the simulation analysis of hydrodynamic characteristics.

[0134] Furthermore, the present invention selects the optimal solution by comprehensively analyzing the environmental adaptability and the sensitivity of the construction area. The proportion of sensitive areas reflects the proportion of a solution layout to sensitive areas. The larger the value, the greater the negative impact on the water environment.

[0135] The calculation formula for construction rationality is as follows:

[0136] ,

[0137] In the formula, To construct reasonableness, K1 and K2 are preset weights, E is the proportion of sensitive areas, and P is environmental adaptability.

[0138] In the process of simulating the hydrodynamic model, the Delft3D software platform can be used for simulation. In the analysis of relevant parameters of waves, tides, and sediments, the hydrodynamic characteristics can be predicted based on the LSTM prediction model and used as reference simulation data. In the simulation process, including tidal field simulation based on regional scale, wave propagation simulation based on local scale, and water flow and sediment simulation around artificial islands based on micro scale, construction simulation and optimization analysis can be effectively carried out from multiple angles. This multi-scale model can more comprehensively simulate the impact of artificial island construction on the hydrodynamic environment of the sea area, and provide a scientific basis for optimizing the layout and design of artificial islands.

[0139] The third aspect of the present invention also provides a computer-readable storage medium, which includes an offshore artificial island construction planning program based on complex hydrodynamic environment assessment. When the offshore artificial island construction planning program based on complex hydrodynamic environment assessment is executed by a processor, the steps of the offshore artificial island construction planning method based on complex hydrodynamic environment assessment as described in any one of the above items are implemented.

[0140] The present invention discloses a method for planning the construction of an offshore artificial island based on a complex hydrodynamic environment assessment. Satellite data of a target water area is acquired through remote sensing technology and a GIS system, and a three-dimensional water area model is constructed. A plurality of sub-areas are divided in the water area model. Macroscopic and microscopic water environment parameters such as waves, tides, silt, and topography of each sub-area are measured and recorded through a GIS system and a water area monitoring device. In combination with the water area model, a multi-scale hydrodynamic model is constructed, and LSTM is applied to predict short-term hydrodynamic characteristics. Multiple sets of artificial island construction plans are simulated in the water area model, and the hydrodynamic model is used to simulate the tidal field and wave propagation, and the optimal construction plan is screened out in combination with the sensitive area assessment. Through the present invention, the efficiency and environmental benefits of artificial island construction can be effectively improved, and the present invention has strong practicability and broad application prospects. It can be applied to various offshore artificial island construction projects to promote the development of the marine economy.

[0141] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0142] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0143] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0144] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0145] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0146] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for planning offshore artificial island construction based on complex hydrodynamic environment assessment, characterized in that: include: Through remote sensing technology and GIS system, satellite remote sensing data of target waters are obtained, and three-dimensional visual water model is constructed through satellite remote sensing data; A preset area range is set based on the target artificial island area, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range; Specifically: Based on the size of the target artificial island, an upper and lower limit range is set as the preset area range; In the water area model, the target water area is divided into multiple sub-areas, and the size of the sub-areas is ensured to be within the preset area range; Through the GIS system and water monitoring equipment, the water environment parameters based on waves, tides, sediments, and topography of the sub-areas are measured and recorded to obtain the first water environment parameters based on the macro level and the second water environment parameters based on the micro level; Specifically: In a preset time period, the GIS system and water monitoring device are used to measure and record the water environment parameters based on waves, tides, sediments, and topography for each sub-area, and the first water environment parameters based on the macro level and the second water environment parameters based on the micro level are obtained respectively; Each sub-area includes corresponding first water area environmental parameters and second water area environmental parameters; The first water area environmental parameters and the second water area environmental parameters are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with the water area model. In the process of hydrodynamic model analysis, the short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and the environmental sensitivity calculation and analysis of the water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked. Specifically: The first water area environmental parameter and the second water area environmental parameter are used as initial data to construct a hydrodynamic model; The results of the hydrodynamic model analysis are visualized through the water area model; In the process of hydrodynamic model analysis, a sub-area is used as the analysis unit, wave data, tidal data and sedimentation data are extracted from the initial data, and the extracted data are serialized based on the time dimension to form water environment serialization data; Build a LSTM-based prediction model, import the serialized data of the water environment into the prediction model to predict short-term hydrodynamic characteristics, and generate hydrodynamic characteristic prediction data; Set preset weights based on three parameters: wave, tide, and sediment; Based on the sensitive water environment indicators, the hydrodynamic characteristics prediction data is analyzed based on the three parameters of wave, tide and sediment to obtain three deviation values. The sensitivity is generated by weighted average of the three deviation values ​​with preset weights. Calculate the sensitivity of each sub-region; The sensitivity level of each sub-area is divided by sensitivity, and sensitive areas and non-sensitive areas are screened out; In the water area model, simulation construction is carried out based on multiple sets of artificial island construction schemes. The tidal field and wave propagation simulation are carried out through the hydrodynamic model. Multiple sets of water area environment simulation data are generated. The rationality of the scheme is combined with the sensitivity area assessment scheme to screen out the optimal artificial island construction scheme. Among them, the satellite remote sensing data of the target water area is obtained through remote sensing technology and GIS system, and a three-dimensional visualized water area model is constructed through the satellite remote sensing data. The satellite remote sensing data includes the topography of the target water area, geomorphic spatial information, marine meteorological data and marine hydrological data.

2. The offshore artificial island construction planning method based on complex hydrodynamic environment assessment according to claim 1 is characterized in that: In the water area model, simulation construction is carried out based on multiple sets of artificial island construction schemes, tidal field and wave propagation simulation is carried out through the hydrodynamic model, and multiple sets of water area environment simulation data are generated. The rationality of the sensitive area assessment scheme is combined to screen out the optimal artificial island construction scheme, which is specifically: Generate initial model parameters based on the water area model based on multiple sets of artificial island construction plans; The initial parameters of the model are imported into the water area model to display the scheme, and the tidal field simulation, wave propagation simulation and water flow and sediment simulation around the artificial island are carried out through the hydrodynamic model in combination with the initial data. The three simulation processes are simulated based on the three data dimensions of waves, tidal currents and sediments, and multiple sets of water area environment simulation data are generated; Through preset simulation indicators, multiple sets of water environment simulation data are evaluated, and the environmental adaptability of each artificial island construction plan is obtained; Based on multiple sets of artificial island construction plans, obtain the location information and area of ​​the artificial island of each plan; Through the location information and area of ​​artificial islands, combined with the water area model, the overlap area of ​​each artificial island construction plan in the sensitive area is determined, and the proportion of the overlapping area to the total area of ​​the artificial island is calculated to obtain the proportion of the sensitive area; The weighted average of the environmental adaptability and the proportion of sensitive areas is calculated to obtain the construction rationality, and the optimal artificial island construction plan is screened out based on the construction rationality.

3. An offshore artificial island construction planning system based on complex hydrodynamic environment assessment, characterized in that: The system includes: a memory and a processor, wherein the memory includes an offshore artificial island construction planning program based on complex hydrodynamic environment assessment, and the offshore artificial island construction planning program based on complex hydrodynamic environment assessment implements the following steps when executed by the processor: Through remote sensing technology and GIS system, satellite remote sensing data of target waters are obtained, and three-dimensional visual water model is constructed through satellite remote sensing data; A preset area range is set based on the target artificial island area, and multiple sub-areas are divided in the water area model, and the size of the sub-areas is ensured to be within the preset area range; Specifically: Based on the size of the target artificial island, an upper and lower limit range is set as the preset area range; In the water area model, the target water area is divided into multiple sub-areas, and the size of the sub-areas is ensured to be within the preset area range; Through the GIS system and water monitoring equipment, the water environment parameters based on waves, tides, sediments, and topography of the sub-areas are measured and recorded to obtain the first water environment parameters based on the macro level and the second water environment parameters based on the micro level; Specifically: In a preset time period, the GIS system and water monitoring device are used to measure and record the water environment parameters based on waves, tides, sediments, and topography for each sub-area, and the first water environment parameters based on the macro level and the second water environment parameters based on the micro level are obtained respectively; Each sub-area includes corresponding first water area environmental parameters and second water area environmental parameters; The first water area environmental parameters and the second water area environmental parameters are used as initial data, and a multi-scale hydrodynamic model is constructed in combination with the water area model. In the process of hydrodynamic model analysis, the short-term hydrodynamic characteristics of each sub-area are predicted based on LSTM, and the environmental sensitivity calculation and analysis of the water area environmental indicators are performed through preset weights, and sensitive areas and non-sensitive areas are dynamically marked. Specifically: The first water area environmental parameter and the second water area environmental parameter are used as initial data to construct a hydrodynamic model; The results of the hydrodynamic model analysis are visualized through the water area model; In the process of hydrodynamic model analysis, a sub-area is used as the analysis unit, wave data, tidal data and sedimentation data are extracted from the initial data, and the extracted data are serialized based on the time dimension to form water environment serialization data; Build a LSTM-based prediction model, import the serialized data of the water environment into the prediction model to predict short-term hydrodynamic characteristics, and generate hydrodynamic characteristic prediction data; Set preset weights based on three parameters: wave, tide, and sediment; Based on the sensitive water environment indicators, the hydrodynamic characteristics prediction data is analyzed based on the three parameters of wave, tide and sediment to obtain three deviation values. The sensitivity is generated by weighted average of the three deviation values ​​with preset weights. Calculate the sensitivity of each sub-region; The sensitivity level of each sub-area is divided by sensitivity, and sensitive areas and non-sensitive areas are screened out; In the water area model, simulation construction is carried out based on multiple sets of artificial island construction schemes. The tidal field and wave propagation simulation are carried out through the hydrodynamic model. Multiple sets of water area environment simulation data are generated. The rationality of the scheme is combined with the sensitivity area assessment scheme to screen out the optimal artificial island construction scheme. Among them, the satellite remote sensing data of the target water area is obtained through remote sensing technology and GIS system, and a three-dimensional visualized water area model is constructed through the satellite remote sensing data. The satellite remote sensing data includes the topography of the target water area, geomorphic spatial information, marine meteorological data and marine hydrological data.

4. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes an offshore artificial island construction planning program based on complex hydrodynamic environment assessment. When the offshore artificial island construction planning program based on complex hydrodynamic environment assessment is executed by a processor, the steps of the offshore artificial island construction planning method based on complex hydrodynamic environment assessment as described in any one of claims 1 to 2 are implemented.

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