Sea-related project three-dimensional layered right setting and site selection method

Abstract

The invention mainly relates to a three-dimensional hierarchical site selection method for a sea-related project, and the method comprises the steps: selecting site selection factors and constructing a site selection factor library according to the management and control requirements of a sea area and the actual sea use demands from the consideration of site selection types in four aspects of administrative regions, matching, compliance and suitability; collecting related data information of site selection types and site selection factors, and preprocessing the related data information; and acquiring pattern spots meeting the administrative region and project function requirements, and obtaining an alternative site selection scheme in combination with the ecological red line region requirement, the island region requirement, the offshore buffer region requirement, the water depth requirement and the area requirement. According to the method, multiple site selection types and multiple site selection factors are comprehensively considered, and sea area use fund grade analysis is combined, so that an alternative site selection scheme is finally obtained, support is provided for sea use project site selection analysis decision, the site selection accuracy is improved, the site selection time is shortened, and the site selection cost is reduced.

Description

[0001] This invention is a divisional application of the Chinese invention patent application with application number "202311617492.4", application date "November 30, 2023", and invention name "A general three-dimensional layered site selection method for marine projects". Technical Field

[0002] The present invention mainly relates to the field of ocean planning technology, and more particularly to a three-dimensional layered site selection method for ocean-related projects. Background Art

[0003] The site selection of sea-use projects is a key link and final destination in the allocation of marine resources. At present, there is no technical standard for the site selection of sea-use projects, and the site selection is mainly based on the subjective experience of sea-use owners or marine management personnel. However, due to the complex natural factors of the sea area, the lack of detailed layout plans for the sea area space, and insufficient sharing of marine data, there are problems such as unsatisfactory site selection results, mismatch, poor matching, and inefficient matching of sea area elements. In response to these problems, it is very necessary to carry out research on the site selection technology of sea-use projects, make full use of digital technology to develop site selection tools, deepen digital empowerment, and achieve accurate matching of sea-use projects and sea area elements.

[0004] Many scholars at home and abroad are doing research on project site selection, involving many industries. Scholars tend to use modeling methods to analyze and calculate relevant data and indicators to build a relatively scientific site selection system. Geographic Information System (GIS) is a computer-based tool that can quickly, efficiently and flexibly process, analyze and visualize geospatial data in various formats.

[0005] Research on project site selection for marine-related enterprises is still in its infancy and the number is relatively small. Only some scholars have conducted preliminary explorations in specific fields and projects such as offshore wind power and photovoltaics, and most of them are currently in the theoretical research stage.

[0006] There is no technical standard for site selection for sea-use projects, and the site selection is mainly based on the subjective experience of sea-use owners or marine management personnel. However, due to the complex natural factors of the sea area, the lack of detailed layout plans for the sea area space, and insufficient sharing of marine data, there are problems such as unsatisfactory site selection results, mismatch, inferior matching, and inefficient matching of sea area elements.

[0007] Although a few scholars have conducted preliminary explorations into specific fields and projects such as offshore wind power and photovoltaics, they are mostly in the theoretical research stage and difficult to put into practical application. At the same time, there is a lack of general site selection technology methods and they are unable to meet the growing demand for sea use.

[0008] The above-mentioned record of background technical knowledge is intended to help ordinary technicians in this field understand the existing technologies that are relatively close to the present invention, and at the same time facilitate the understanding of the inventive concept and technical solution of this application. It should be clear that in the absence of clear evidence that the above-mentioned content has been disclosed before the filing date of this patent application, the above-mentioned background technology should not be used to evaluate the novelty of the technical solution of this application. Summary of the invention

[0009] In order to solve at least one of the technical problems mentioned in the above background technology, the purpose of the present invention is to provide a universal three-dimensional layered site selection method for sea-related projects, which comprehensively considers various site selection types and multiple site selection factors, combines the gold level analysis of sea area use, and finally obtains alternative site selection plans to provide support for the site selection analysis and decision-making of sea-use projects, improve the accuracy of site selection, shorten the site selection time, and reduce the site selection cost.

[0010] A universal three-dimensional layered site selection method for marine projects, comprising: S100 builds a site selection factor library. According to the requirements of sea area control and actual sea use needs, it considers the site selection types from four aspects: administrative area, matching, compliance, and suitability, selects site selection factors, and builds a site selection factor library; S200 builds a sea site selection database, collects data and information related to site selection types and factors, and pre-processes the relevant data and information; The S300 design project site selection method obtains maps that meet the administrative area and project function requirements, and obtains alternative site selection plans based on the ecological red line area requirements, island area requirements, offshore buffer area requirements, water depth requirements, and area requirements.

[0011] As a preferred embodiment of the technical solution of the present invention, the site selection factors include: city, county, usage area, compliance with marine functional zoning, compliance with marine ecological red lines, island information, compliance with coastline planning, sea area use rights, sea area use fees, offshore distance, and water depth.

[0012] As a preferred embodiment of the technical solution of the present invention, in the step S100 of constructing a site selection factor library, the site selection factors selected from the administrative area site selection type include: the city and the county.

[0013] As a preferred embodiment of the technical solution of the present invention, in the step S100 of constructing a site selection factor library, the site selection factors selected from the matching site selection types include the use area.

[0014] As a preferred embodiment of the technical solution of the present invention, in the step S100 of constructing a site selection factor library, the site selection factors selected from the compliance site selection type include: compliance with marine functional zoning, compliance with marine ecological red lines, island information, compliance with coastline planning, sea area use rights and sea area use fees.

[0015] As a preferred embodiment of the technical solution of the present invention, in the step S100 of constructing a site selection factor library, the site selection factors selected from the suitability site selection types include: offshore distance and water depth.

[0016] As a preferred embodiment of the technical solution of the present invention, in the step S200 of constructing a sea site selection database, the data information related to the collection of site selection types and site selection factors includes: marine functional zoning data, island data, municipal survey boundary data, county survey boundary data, marine ecological red line area data, island data, coastline planning data, sea area use rights data, sea area use fee data, mainland coastline and inhabited island coastline data, and water depth data.

[0017] As a preferred embodiment of the technical solution of the present invention, in the step S200 of constructing a sea site selection database, the preprocessing of relevant data information includes preprocessing of sea area base map data, preprocessing of marine functional zoning data, preprocessing of marine ecological red line data, preprocessing of sea area use golden score classification data and preprocessing of vector layer.

[0018] As a preferred embodiment of the technical solution of the present invention, the preprocessing of the sea area base map data includes: selecting marine functional zoning data as the sea area management base map, dividing the sea area into map units based on counties through municipal boundary survey data and county boundary survey data, removing irrelevant attributes, adding the counties and cities where the attribute fields are located, and naming them one by one.

[0019] As a preferred embodiment of the technical solution of the present invention, the marine functional zoning data preprocessing includes: according to the functional zoning management and control requirements, the sea use type and sea use method requirements, distinguishing the sea use type and sea use method allowed to enter for each functional zoning type, and matching them one by one.

[0020] As a preferred embodiment of the technical solution of the present invention, the marine ecological red line data preprocessing includes: zoning the marine ecological red line area into prohibited areas and restricted areas, and adding a control requirement field to the restricted area map.

[0021] As a preferred embodiment of the technical solution of the present invention, the sea area gold classification and grading data preprocessing includes: setting attribute fields for each map spot according to the classification and grading requirements: grade, level, and corresponding sea area gold unit price.

[0022] As a preferred embodiment of the technical solution of the present invention, the vector layer preprocessing includes: reprojecting all vector layers to unify the coordinate system.

[0023] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the administrative region that meets the requirements of the sea area base map patch A that meets the "county and city" field matching requirements.

[0024] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, satisfying the project function requirements means meeting the sea area map spots that meet the "sea use type, sea use method" field matching requirements, and superimposing sea area map spots A to obtain sea area map spots B that meet the management and control requirements.

[0025] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the ecological red line area requirement means that the sea area map B that meets the management and control requirements needs to erase the prohibited ecological red line area.

[0026] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the ecological red line area requirement also includes that if the sea area map obtained by the ecological red line area includes a restricted ecological red line area, the attribute field will display the name of the ecological red line area and the control requirements when the final result is output.

[0027] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the island area requirement means that the island layer needs to be erased from the available image spots.

[0028] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the offshore buffer requirement means making a buffer zone of corresponding width according to the shoreline layer required by the offshore distance, and the available map spots need to erase the offshore buffer zone.

[0029] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the water depth requirement means partitioning the water depth layer, and the available map spots need to be located in the area that meets the water depth requirement.

[0030] As a preferred embodiment of the technical solution of the present invention, in the S300 design project site selection method step, the area requirement means that the available blocks must be selected from blocks whose area is not less than the area requirement.

[0031] As a preferred embodiment of the technical solution of the present invention, the S300 design project site selection method also includes: each map block sets attribute fields according to the classification and grading requirements: grade, level, corresponding sea area use gold unit price, the alternative site selection plan map blocks are superimposed with the sea area use gold classification and grading data, and the sea area use gold reference value of each block is calculated.

[0032] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements each step of the above-mentioned general three-dimensional layered site selection method for marine projects.

[0033] According to the requirements of sea area management and actual sea use needs, the present invention considers spatial planning, use control, ecological and environmental impact, economic efficiency and other aspects, selects sea use methods, sea use types, offshore distance and other site selection factors, sets the site selection logic, designs algorithms based on GIS technology (geographic information system), selects alternative blocks that meet the site selection requirements, and provides support for the site selection analysis and decision-making of sea use projects.

[0034] The site selection method can provide site selection consultation for sea area users, improve site selection accuracy, shorten site selection time, and reduce site selection costs; it can provide decision-making support for management departments, transform sea area elements from demand-driven to supply-guided, and transform passive guarantees into active pre-services; it can promote the scientific and reasonable allocation and efficient development and utilization of sea area resources, help build a more balanced and sustainable marine space development pattern, and support higher-quality development with more reasonable resource allocation.

[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to make the above and / or other purposes, features, advantages and examples of the present invention more obvious and easy to understand, the drawings required for use in the specific implementation of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A schematic diagram showing the site selection factors of the three-dimensional layered site selection method for general marine projects; Figure 2 A schematic diagram showing preprocessing of relevant data information; Figure 3 A simplified diagram showing the three-dimensional layered site selection method for general marine projects; Figure 4 A detailed flow chart showing the three-dimensional layered site selection method for general marine projects. DETAILED DESCRIPTION

[0038] Those skilled in the art can refer to the content of this article and appropriately replace and / or modify the process parameters to achieve the same. However, it should be particularly noted that all similar replacements and / or modifications are obvious to those skilled in the art and are considered to be included in the present invention. The products and preparation methods described in the present invention have been described through preferred examples. It is obvious that relevant personnel can modify or appropriately change and combine the products and preparation methods described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0039] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. The present invention uses the methods and materials described herein; however, other suitable methods and materials known in the art may also be used. The materials, methods, and examples described herein are illustrative only and are not intended to be limiting. All publications, patent applications, patents, provisional applications, database entries, and other references mentioned herein are incorporated herein by reference in their entirety. In the event of a conflict, the present specification, including definitions, shall prevail.

[0040] Unless specifically stated, the materials, methods, and examples described herein are illustrative only and not limiting. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are still described herein.

[0041] It should be understood that A, B, C, D, E, F, G, and H mentioned in the present invention are not specific, but are merely used to distinguish between various pattern spots. Therefore, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, g, h, one, two, three, four, five, six, seven, eight, etc. can also refer to various pattern spots, and are not limitations to the technical solution of the present application.

[0042] The present invention is described in detail below.

[0043] like Figure 1 As shown, a general three-dimensional layered site selection method for sea-related projects is provided, including: site selection factor research, construction of a site selection factor library, construction of a sea site selection database, and a method for selecting alternative site selection options for design projects, as follows.

[0044] 1. Research on site selection factors and construction of site selection factor database According to the requirements of sea area control and actual sea use needs, such as Figure 1 As shown in the figure, the city, county, area of ​​use, compliance with marine functional zoning, compliance with marine ecological red line, island information, compliance with coastline planning, sea area use rights, sea area use fees, offshore distance and water depth are used as site selection factors. Each site selection factor specifies the calculation logic and the data / information required. For example, the calculation logic of the city where the site selection factor is located is to select the resource elements of the city. The data / information required include: marine functional zoning, island data, municipal survey boundaries, etc. The details of the site selection factors are shown in Table 1, and a site selection factor library is further constructed.

[0045] Table 1. Location factors

[0046] 2. Building a Sea Site Selection Database Collect relevant data and information on site selection types and factors: marine functional zoning data, island data, municipal survey boundary data, county survey boundary data, marine ecological red line area data, island data, coastline planning data, sea area use rights data, sea area use fee data, mainland coastline and inhabited island coastline data, water depth data, and pre-process the relevant data information, such as Figure 2 As shown, the specific steps include the following steps.

[0047] S210 sea area base map data preprocessing: select marine functional zoning data as the sea area management base map, divide the sea area into map units based on counties through municipal boundary survey data and county boundary survey data, remove irrelevant attributes, add the county and city where the attribute fields are located, and name them one by one.

[0048] S220 marine functional zoning data preprocessing: According to the functional zoning management and control requirements, the types and methods of sea use are distinguished, and the types and methods of sea use allowed for each functional zoning type are matched one by one.

[0049] S230 Marine ecological red line data preprocessing: Divide the marine ecological red line area into prohibited areas and restricted areas, and add control requirements fields to the restricted area maps.

[0050] S240 Sea area gold classification and grading data preprocessing: Each map block sets attribute fields according to the classification and grading requirements: grade, level, and corresponding sea area gold unit price.

[0051] S250 vector layer preprocessing: reproject all vector layers and unify the coordinate system.

[0052] 3. Methods for selecting alternative site selection options for design projects like Figure 3 As shown, first, in the sea area on the sea side of the coastline of the city / county where the project is located, the matching marine functional zoning is selected according to the sea use type and sea use method to obtain the map that meets the administrative area requirements and the project functional zoning requirements, and then the alternative site selection scheme is obtained by combining the ecological red line area requirements, island area requirements, existing ownership areas, offshore buffer zone requirements, water depth requirements, area requirements, etc., including subtracting the prohibited marine survival red line area and islands, subtracting the ownership area, and then determining whether the offshore distance is greater than or less than a specific value and the water depth is greater than or less than a specific value. The intertidal zone is above 0 meters, and the offshore distance and water depth are used as elastic screening and displayed by default; finally, the sea area use gold score classification data is superimposed to divide the blocks, calculate the sea area use gold reference value for each block, and select the blocks with a sea area greater than the area value, so as to complete the site selection.

[0053] Specific steps are as follows Figure 4 shown.

[0054] S310 Administrative Division Conformity Analysis: Match the sea area base map patch A that meets the requirements through the "County, City" fields.

[0055] S320 Marine Functional Zoning Conformity Analysis: Match the marine functional zoning patches that meet the requirements through the "sea use type, sea use method" fields, overlay the sea area base map patch A, and obtain the sea area patch B that meets the management and control requirements.

[0056] S330 Marine ecological red line compliance analysis: superimpose the ecological red line layer on sea area spot B, erase the prohibited ecological red line area to obtain sea area spot C. If sea area spot C has a restricted ecological red line area, the attribute field will display the name of the ecological red line area and control requirements when the result is finally output.

[0057] S340 Island Analysis: Erase the island layer of sea area spot C to obtain sea area spot D.

[0058] S350 Ownership Analysis: The sea area map D is superimposed on the sea area current ownership layer and the public sea use registration layer, and the above-mentioned existing ownership areas are erased to obtain the available sea area map E.

[0059] S360 offshore distance analysis: According to the offshore distance requirements, the coastline layer is used to make a buffer zone of corresponding width. The sea area can use the map E to erase the buffer zone and obtain the map F.

[0060] S370 Depth Contour Analysis: According to the depth setting value, the depth layer is partitioned, and the area G that meets the requirements is selected, the spot F is superimposed on the area G, and the spot H in the area G is cropped.

[0061] S380 Area Matching: Calculate the area of ​​each small block in the map H, and select blocks H that are greater than or equal to the area requirement i As an alternative site selection plan.

[0062] S390 Sea Area Gold Level Analysis: The map H is superimposed with the sea area gold classification data, and each block H is calculated. i Gold reference values ​​are used for sea areas.

[0063] Furthermore, after obtaining each block H iAfter determining the reference value of the sea area use gold, a fuzzy discrimination method is used to conduct a comprehensive evaluation of each candidate block to screen out the most suitable project address. The evaluation factors include: the functional compliance of the candidate block, the impact of the candidate block's nearest marine ecological red line, the impact of the candidate block's nearest island, the impact of the candidate block's offshore distance, the impact of the candidate block's water depth, the area effect of the candidate block, and the size of the sea area use gold of the candidate block. Through an expert questionnaire, the above evaluation factors are weighted according to the impact, such as small effect, slightly large effect, large effect, large effect, and extremely large effect, with 1, 2, 3, 4, and 5 as quantitative indicators, to obtain the weight value of each evaluation factor.

[0064] Through the expert questionnaire, each block H i The corresponding evaluation factors of the candidate blocks are evaluated to obtain the evaluation factor scores, among which the functional compliance of the candidate blocks and the area effect of the candidate blocks are positive scores, and the influence of the nearest marine ecological red line, the nearest island, the offshore distance, the water depth and the size of the sea area use gold of the candidate blocks are negative scores; combined with their weight values, the H of each block is calculated. i The comprehensive evaluation value C i , , where j is the evaluation factor index, n is the total number of evaluation factors, E ij For block H i The evaluation factor score of the evaluation factor j, P j is the weight value of the evaluation factor j; the block with the largest comprehensive value is selected as the project block.

[0065] After filtering out each block H i After the reference value of sea area use gold is obtained, the evaluation molecule weight value and evaluation molecule score are obtained in the form of an expert questionnaire through multiple evaluation factors such as the functional compliance of the candidate block, the influence of the nearest marine ecological red line of the candidate block, the influence of the nearest island of the candidate block, the influence of the offshore distance of the candidate block, the influence of the water depth of the candidate block, the area effect of the candidate block, and the size of the sea area use gold of the candidate block. Finally, the comprehensive evaluation score of each candidate block is obtained, and the block with the largest score is selected as the project address. Therefore, the method not only considers the influence of many site selection factors, but also further considers the degree of influence of unfavorable factors and favorable factors deviating from the candidate block, further improves the accuracy of site selection, and significantly improves the scientific and reasonable allocation and efficient development and utilization of marine resources.

[0066] The technical solution of the present invention first selects site selection factors from four aspects, namely, administrative region, matching, compliance and adaptability, according to the requirements of sea area management and control and the actual demand for sea use, and constructs a site selection factor database. Then, the relevant data information of site selection type and site selection factor is collected and pre-processed. Finally, after obtaining the map that meets the requirements of administrative region and project function, the alternative site selection scheme is obtained by comprehensively combining the requirements of ecological red line area, island, buffer zone, water depth and area. The scheme comprehensively considers the site selection factors of spatial planning, use control, ecological environment impact, economy and other aspects, and provides support for the site selection analysis and decision-making of sea use projects.

[0067] In the specific site selection plan, the administrative division conformity, marine functional zoning conformity, marine ecological red line conformity, island analysis, existing ownership analysis, offshore distance analysis, water depth analysis, and area analysis are comprehensively considered to obtain the candidate site selection blocks. Finally, the sea area use gold level analysis is used to calculate the sea area use gold reference value of each block, so as to obtain the project's candidate site selection blocks. It can provide site selection consultation for sea area users, improve site selection accuracy, shorten site selection time, and reduce site selection costs. It can also provide decision-making support for sea area management departments, and significantly improve the scientific and reasonable allocation and efficient development and utilization of sea area resources.

[0068] A computer-readable storage medium is also provided, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned general three-dimensional layered site selection method for marine projects are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0069] Computer readable media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PR AM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0070] The conventional techniques in the above embodiments are prior arts known to those skilled in the art, and thus will not be described in detail here.

[0071] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0072] Although the present invention has been described in detail and some specific embodiments have been cited, it is obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the present invention.

[0073] Although the above-mentioned specific embodiments have been shown, described and pointed out the novel features applied to various embodiments, it should be understood that various omissions, substitutions and changes can be made to the form and details of the described device or method without departing from the spirit of the present disclosure. In addition, the above-mentioned various features and methods can be used independently of each other, or can be combined in various ways. All possible combinations and sub-combinations are intended to fall within the scope of the present disclosure. Many of the above-mentioned embodiments include similar components, and therefore, these similar components are interchangeable in different embodiments. Although the present invention has been disclosed in the context of certain embodiments and examples, it should be understood by those skilled in the art that the present invention can extend beyond the specifically disclosed embodiments to other alternative embodiments and / or applications and obvious modifications and equivalents thereof. Therefore, the present invention is not intended to be limited by the specific disclosure of the preferred embodiments herein.

[0074] Matters not covered in the present invention are all known technologies.

Claims

1. A three-dimensional layered site selection method for marine projects, characterized in that include: S100 builds a site selection factor library. According to the requirements of sea area control and actual sea use needs, it considers the site selection types from four aspects: administrative area, matching, compliance, and suitability, selects site selection factors, and builds a site selection factor library; S200 builds a sea site selection database, collects data and information related to site selection types and factors, and pre-processes the relevant data and information; The S300 design project site selection method obtains maps that meet the administrative area and project function requirements, and obtains alternative site selection plans based on the ecological red line area requirements, island area requirements, offshore buffer area requirements, water depth requirements, and area requirements.

2. The three-dimensional layered site selection method for marine projects according to claim 1 is characterized by: The site selection factors include: city, county, area of ​​use, compliance with marine functional zoning, compliance with marine ecological red lines, island information, compliance with coastline planning, sea area use rights, sea area use fees, distance from shore, and water depth.

3. The three-dimensional layered site selection method for marine projects according to claim 1 is characterized by: In the step of constructing a site selection factor library in S100, the site selection factors selected from the administrative region site selection type include: the city and the county; and / or In the step of constructing a site selection factor library in S100, the site selection factors selected from the matching site selection types include the use area; and / or In the step of constructing a site selection factor library in S100, the site selection factors selected from the compliance site selection type include: compliance with marine functional zoning, compliance with marine ecological red lines, island information, compliance with coastline planning, sea area use rights and sea area use fees; and / or In the step S100 of constructing a site selection factor library, the site selection factors selected from the suitability site selection types include: offshore distance and water depth.

4. The three-dimensional layered site selection method for marine projects according to claim 1 is characterized by: In the step S200 of constructing a sea site selection database, the data information related to the site selection type and site selection factors collected includes: marine functional zoning data, island data, municipal survey boundary data, county survey boundary data, marine ecological red line area data, island data, coastline planning data, sea area use rights data, sea area use fee data, mainland coastline and inhabited island coastline data, and water depth data.

5. The three-dimensional layered site selection method for marine projects according to claim 1 is characterized by: In the step S200 of constructing a sea site selection database, the preprocessing of relevant data information includes preprocessing of sea area base map data, preprocessing of marine functional zoning data, preprocessing of marine ecological red line data, preprocessing of sea area use golden score classification data and preprocessing of vector map layer.

6. The three-dimensional layered site selection method for marine projects according to claim 5 is characterized by: The sea area base map data preprocessing includes: selecting marine functional zoning data as the sea area management base map, dividing the sea area into map units with counties as units through municipal survey boundary data and county survey boundary data, removing irrelevant attributes, adding the counties and cities where the attribute fields are located, and naming them one by one; and / or The marine functional zoning data preprocessing includes: according to the functional zoning control requirements, the sea use type and sea use method requirements, distinguishing the sea use type and sea use method allowed to enter each functional zoning type, and matching them one by one; and / or The marine ecological red line data preprocessing includes: zoning the marine ecological red line area into prohibited areas and restricted areas, and adding control requirements fields to the restricted area map; and / or The sea area use gold classification and grading data preprocessing includes: setting attribute fields for each map spot according to the classification and grading requirements: grade, level, corresponding sea area use gold unit price; and / or The vector layer preprocessing includes: reprojecting all vector layers and unifying the coordinate system.

7. The three-dimensional layered site selection method for marine projects according to claim 1 is characterized by: In the S300 design project site selection method step, the administrative region meets the sea area base map spot A that meets the "county and city" field matching requirements; the project function requirements meet the sea area map spot that meets the "sea use type and sea use method" field matching requirements, and the sea area map spot A is superimposed to obtain the sea area spot B that meets the control requirements; the ecological red line area requirements mean that the sea area spot B that meets the control requirements needs to erase the prohibited ecological red line area; and / or The island area requirement means that the available spots need to be erased from the island layer; and / or The offshore buffer requirement means that the coastline layer is required to make a buffer of corresponding width according to the offshore distance, and the available map spots need to erase the offshore buffer; and / or The water depth requirement means that the water depth layer is partitioned, and the available image spots must be located in the area that meets the water depth requirement; and / or The area requirement means that the available blocks must be blocks whose area is not less than the area requirement.

8. The three-dimensional layered site selection method for marine projects according to claim 7 is characterized by: In the S300 design project site selection method step, the ecological red line area requirements also include if the sea area map obtained by the ecological red line area includes a restricted ecological red line area, then the attribute field will display the name of the ecological red line area and the control requirements when the final result is output.

9. The three-dimensional layered site selection method for marine projects according to any one of claims 1 to 8, characterized in that: The S300 design project site selection method also includes: each map block sets attribute fields according to classification requirements: grade, level, corresponding sea area use gold unit price, the alternative site selection plan map block superimposes the sea area use gold classification data, and calculates the sea area use gold reference value for each block.

10. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements each step of the three-dimensional layered site selection method for marine projects as described in any one of claims 1 to 8.

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