A method, system, electronic device and medium for constructing land spatial information

Abstract

A method, system, electronic device, and medium for constructing land spatial information relate to the field of land planning technology. The method includes: obtaining land information for a target planning area; determining, based on the land information, multiple first and second areas, and at least one third area, wherein the first area is an area within the target planning area where land is unusable, the second area is an area within the target planning area where land is usable, and the third area is the interval between two adjacent first areas, or two adjacent second areas; determining a first area ratio based on the area of ​​the first area and the area of ​​the second area, and determining a second area ratio based on the area of ​​the third area and the area of ​​the first area or the area of ​​the second area; and constructing land spatial information for the third area based on the first and second area ratios. This method improves land planning utilization.

Description

Technical Field

[0001] The present application relates to the field of land planning technology, and in particular to a method, system, electronic equipment and medium for managing land spatial information. Background Art

[0002] With the acceleration of urbanization and the increasing impact of human activities on the environment, the management and planning of land resources are becoming increasingly important. Constructing land resource information is a complex process that requires consideration of various factors, such as the physical properties of the land (e.g., slope, soil type), existing and anticipated land uses, environmental protection requirements, and the economic and social needs of the community. Land spatial information is often presented in the form of spatial distribution images, which make image analysis more intuitive during land planning. To make effective land planning decisions, decision makers require accurate and detailed land spatial information.

[0003] Currently, traditional land information management methods divide land use and display it in images. However, in practice, when drawing spatial distribution images, traditional land information management methods often leave gaps between adjacent planning areas. The impact of these gaps is not considered in actual land planning, resulting in low land utilization rates during land planning. Summary of the Invention

[0004] The present application provides a method, system, electronic equipment and medium for constructing land spatial information, which has the effect of planning land and improving land utilization.

[0005] In a first aspect, the present application provides a method for constructing land spatial information, comprising:

[0006] Obtain land information of the target planning area;

[0007] Determining, based on the land information, a plurality of first areas and second areas, and at least one third area, wherein the first area is an area in the target planning area where land cannot be used, the second area is an area in the target planning area where land can be used, and the third area is an interval area between two adjacent first areas or two adjacent second areas;

[0008] determining a first area ratio based on the area of ​​the first area and the area of ​​the second area, and determining a second area ratio based on the area of ​​the third area and the area of ​​the first area or the area of ​​the second area;

[0009] The land space information of the third area is constructed according to the first area ratio and the second area ratio.

[0010] By adopting the above technical solution, the current land use information of the target planning area is obtained. According to the classification information such as construction land and agricultural land, the first area that cannot be developed and the second area that can be further developed are determined, and the interval area between the first area and the second area, namely the third area, is determined. The area ratio of each first area to the adjacent second area is calculated as the first area ratio to reflect the area ratio relationship of different types of areas; and the area ratio of each third area to the adjacent first area or second area is calculated as the second area ratio to reflect the area situation of the interval area. Based on the two types of area ratio indicators, it is determined whether the interval area can be incorporated into the adjacent area or re-divided, and the new land use information of the third area is rendered. The effect of this technical solution is that it can combine the area ratio relationship to realize the re-planning and utilization of the interval area, thereby rationally utilizing the interval area, optimizing the land use layout, and improving the land use efficiency.

[0011] Optionally, obtain coordinate string information of the target planning area for multiple years; query the geographic feature information and location information corresponding to the coordinate string information of the multiple years according to the GIS database; and generate the spatial distribution image of the target planning area based on the geographic feature information and the location information.

[0012] By employing this technical solution, coordinate information for the target area is obtained for different years. Based on this information, the geographic information system database is used to query the corresponding location for feature information, such as land use type, transportation facilities, and other geographic elements. This multi-temporal geographic element information is comprehensively processed to generate an image of land use distribution changes in the target area over different years. The benefit of obtaining land information in this way is that it can leverage historically archived geographic database resources and, through multi-year comparisons, reveal changes in land use type and distribution in the target area. This can provide data support for the subsequent identification of different functional zones and can also provide future planning recommendations by analyzing land use evolution trends.

[0013] Optionally, a construction map layer, an agricultural map layer and an unused map layer are extracted from the spatial distribution image; the first area is determined based on the construction map layer and the agricultural map layer; and the second area is determined based on the unused map layer.

[0014] By employing the above technical solution, after acquiring a land use distribution image of the target planning area, image classification is performed to extract layers corresponding to different land use types, such as construction land, agricultural land, and unused land. Based on the utilized construction land and agricultural land layers, the first area is classified as undevelopable. Based on the unused land layer, the second area is classified as further developable. The effect of determining functional zones based on land use type layers is that the distribution of utilized and usable land resources within the target area can be quickly and intuitively distinguished. Clarifying the scope of different land types provides data support for calculating area ratios and a basis for subsequently formulating utilization strategies for different areas.

[0015] Optionally, it is determined whether the first area ratio is smaller than a preset first area ratio; if the first area ratio is smaller than the preset standard area ratio, the first area corresponding to the first area ratio is used as the second area.

[0016] By employing the above technical solution, after calculating the area ratio of each first region to the adjacent second region (i.e., the first area ratio), a determination is made as to whether the first area ratio is below a preset threshold. If the first area ratio is below the threshold, indicating sufficient adjacent available land resources, the first region's classification can be adjusted from "undevelopable" to "developable," effectively reclassifying it as a second region. This dynamic adjustment of region classification allows for the redevelopment of some undevelopable land based on the calculated results, further optimizing the layout of land resources and improving the overall efficiency and effectiveness of land utilization.

[0017] Optionally, it is determined whether the second area ratio is less than a preset second area ratio; if the second area ratio is less than the preset second area ratio, the interval area is regarded as two adjacent first areas or two adjacent second areas corresponding to the second area ratio.

[0018] By employing the above technical solution, after calculating the area ratio (second area ratio) of each third region to the adjacent first or second region, a determination is made as to whether the second area ratio is below a preset threshold. If the second area ratio is below the threshold, indicating that the intervening region is relatively small, it can be considered for incorporation into the adjacent first or second region. The benefit of incorporating intervening regions is that these small, scattered areas can be effectively utilized by incorporating them into adjacent developed or developable areas, thereby improving the intensive use of land and optimizing land resource allocation.

[0019] Optionally, determine whether the land use types of the two adjacent first areas corresponding to the second area ratio are the same; if the land use types of the two adjacent first areas corresponding to the second area ratio are the same, the land use type of the interval area is taken as one of the construction land, the agricultural land and the permanent farmland.

[0020] By employing the above technical solution, after the gap area is incorporated into the adjacent first area, it is determined whether the land use types of the adjacent first areas on both sides of the gap area are the same. If the adjacent areas have the same land use type, for example, both are agricultural land, the land use type of the gap area can be determined to be the same as that of the adjacent areas, namely, agricultural land. This ensures that the land use type of the newly utilized gap area is consistent with that of the adjacent areas, thereby forming a land layout with coherent utilization functions and improving the rationality of land use.

[0021] Optionally, if the land use types of the two adjacent first areas corresponding to the second area ratio are different, at least two land use types among the construction land, the agricultural land and the permanent farmland are selected as composite land; and the land use type of the interval area is used as the composite land.

[0022] By adopting the above technical solution, when it is determined that the land use types of the adjacent first areas on both sides of the separation area are different, at least two different types of land use can be selected from construction land, agricultural land, and permanent farmland to form a composite land use for the separation area. This can take into account the different land use functional requirements, achieve the comprehensive and harmonious utilization of multiple land use types within the limited separation area, and further improve land use efficiency.

[0023] In a second aspect of the present application, a system for constructing land spatial information is provided.

[0024] Information acquisition module, used to obtain land information of the target planning area;

[0025] an area division module, configured to determine, based on the land information, a plurality of first areas and second areas, and at least one third area, wherein the first area is an area in the target planning area where land cannot be used, the second area is an area in the target planning area where land can be used, and the third area is an interval area between two adjacent first areas or two adjacent second areas;

[0026] an area calculation module, which determines a first area ratio according to the area of ​​the first area and the area of ​​the second area, and determines a second area ratio according to the area of ​​the third area and the area of ​​the first area or the area of ​​the second area;

[0027] An information construction module is used to construct the land space information of the third area according to the first area ratio and the second area ratio.

[0028] In a third aspect of the present application, an electronic device is provided.

[0029] A land space information construction system includes a memory, a processor, and a program stored in the memory and executable on the processor. The program can implement a land space information construction method when loaded and executed by the processor.

[0030] In a fourth aspect of the present application, a computer-readable storage medium is provided.

[0031] A computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the processor implements a method for constructing land spatial information.

[0032] In summary, one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0033] 1. This application obtains the current land use information of the target planning area. According to the classification information of construction land, agricultural land, etc., the first area that cannot be developed and the second area that can be further developed are determined, and the interval area between the first area and the second area, namely the third area, is determined. The area ratio of each first area to the adjacent second area is calculated as the first area ratio to reflect the area ratio relationship of different types of areas; and the area ratio of each third area to the adjacent first area or second area is calculated as the second area ratio to reflect the area situation of the interval area. According to the two types of area ratio indicators, it is judged whether the interval area can be incorporated into the adjacent area or re-divided, and the new land use information of the third area is rendered. The effect of this technical solution is that it can combine the area ratio relationship to realize the re-planning and utilization of the interval area, thereby rationally utilizing the interval area, optimizing the land use layout, and improving the land use efficiency.

[0034] 2. This application obtains the coordinate information of the target area in different years, and based on this, queries the geographic information system database to obtain the ground feature information of the corresponding location, such as land use type, transportation facilities and other geographic element information. These multi-temporal geographic element information are comprehensively processed to generate images of land use distribution changes in the target area in different years. The effect of obtaining land information in this way is that it is possible to use historical archived geographic database resources to reflect the changes in land use type and distribution in the target area through information comparison over many years. This can provide data support for the subsequent determination of different functional areas, and can also provide future planning suggestions by analyzing the evolution trend of land use.

[0035] 3. After obtaining the land use distribution image of the target planning area, this application extracts the layers corresponding to different land use types such as construction land, agricultural land and unused land through image classification processing. According to the utilized construction land and agricultural land map layers, it is divided into the first area that cannot be further developed and utilized. And according to the unused map layer, it is divided into the second area that can be further developed and utilized. The effect of determining the functional area based on the land use type layer in this way is that the distribution of utilized and usable land resources within the target area can be distinguished intuitively and quickly. Clarifying the scope of different types of land provides data support for calculating the area ratio, and also provides a basis for the subsequent formulation of utilization strategies for different regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flow chart of a method for constructing land spatial information provided by an embodiment of the present application;

[0037] Figure 2 This is a schematic diagram of the structure of a land space information construction system disclosed in an embodiment of the present application;

[0038] Figure 3 This is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.

[0039] Description of reference numerals: 300, electronic device; 301, processor; 302, communication bus; 303, user interface; 304, network interface; 305, memory. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0041] In the description of the embodiments of this application, words such as "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "for example" or "for instance" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "for example" or "for instance" is intended to present the relevant concepts in a concrete manner.

[0042] In the description of the embodiments of the present application, the term "multiple" means two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0043] In order to facilitate understanding of the method and system provided by the embodiments of the present application, before introducing the embodiments of the present application, the background of the embodiments of the present application is first introduced.

[0044] Currently, traditional land information management methods divide land use and display it in images. However, in practice, when drawing spatial distribution images, traditional land information management methods often leave gaps between adjacent planning areas. The impact of these gaps is not considered in actual land planning, resulting in wasted space, management difficulties, and low land utilization during land planning.

[0045] The present application discloses a method for constructing land spatial information. This method identifies land information within a planned area, divides it into a first area, a second area, and a third area, calculates the area of ​​the intervals between the areas, compares the areas of the intervals, and then plans the intervals based on the land types of the surrounding areas. This method is primarily intended to address the problem of not considering the impact of intervals in actual land planning, resulting in wasted space, difficult management, and low land utilization during land planning.

[0046] After the above background content introduction, those skilled in the art can understand the problems existing in the prior art. The technical solutions in the embodiments of the present application will be described in detail below in conjunction with the drawings in the embodiments of the present application. The described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0047] Reference Figure 1 A method for constructing land spatial information includes steps S10 to S40, specifically including the following steps:

[0048] S10: Obtain land information of the target planning area.

[0049] Among them, the target planning area refers to an area that requires land use planning and management, and its scope needs to be determined based on the actual needs of land use planning.

[0050] Specifically, based on a pre-set land planning area, a spatial distribution image of the land planning area is obtained through a GIS system. The spatial distribution image includes land use information of the land planning area, and the land use information can be used for subsequent regional division.

[0051] Based on the above embodiment, the specific land information acquisition steps include S11 to S13:

[0052] S11: Obtain coordinate information of the target planning area for multiple years.

[0053] Coordinate information refers to a dataset of latitude and longitude coordinates representing the target planning area. Obtaining multi-year coordinate information for the target planning area provides basic data support for comparative analysis of land use changes. Coordinate information is organized in JSON format, containing two fields: year and coordinate string, to facilitate program reading and processing. By obtaining multi-year coordinate data as foundational data, analyses such as land use classification and statistics and assessment of land resource changes can be performed, serving as a foundation for land planning decisions.

[0054] For example, a regional planning database is queried to retrieve administrative division coordinate data for the target planning area over the past several years. The regional boundary coordinates for each year are extracted and converted into a JSON-formatted coordinate string. The JSON object can be configured to contain two fields: year and coordinate string. The coordinate string field stores the latitude and longitude coordinates of the regional boundary for that year. This JSON-formatted coordinate information is organized in chronological order to form a multi-year coordinate dataset for the target planning area. This information acquisition method allows for accurate coordinate boundary information for the target planning area in different years and stores it in a programmable JSON format. This provides basic data support for subsequent comparative analysis of land use changes in the target area over different periods. Based on this coordinate information, satellite images or maps from different years can be cropped to generate land use classification statistics. Coordinate ranges can also be calculated to determine changes in land resources. Multi-year coordinate information enables analysis of land use evolution over time.

[0055] S12: According to the GIS database, the geographic feature information and location information corresponding to the coordinate string information of multiple years are searched.

[0056] A GIS database is a geospatial database within a geographic information system (GIS). It is used to store data on various geographic features, such as the location coordinates and attribute information of features like roads, rivers, and buildings. A GIS database has a spatial indexing function, allowing for rapid data query based on geographic location. It also supports various spatial analyses, such as overlay and buffer analysis. A GIS database contains coordinate system information and can convert between different coordinate systems. Based on a relational database, a GIS database has the general functionality of a database management system and can store a variety of spatial data types, including points, lines, surfaces, images, and grids.

[0057] For example, a GIS database is established to record various geographic feature data for the target area, including natural conditions such as topography, climate, hydrology, soil and vegetation, as well as locational characteristics such as road, water system, and settlement distribution. Coordinate information is imported into the GIS database, and the query condition is set to the coordinate range. The query API is called to search for geographic feature information that fits the coordinate range for each year. The query results are organized and aggregated to form a geographic feature dataset covering multiple years. This method can obtain detailed geographic feature information for the target planning area at different times, including topography, water system, and vegetation. This helps to gain a comprehensive understanding of the region's natural resource status and provides a scientific basis for land planning. Topographic information reflects regional topographic characteristics, water system information relates to water resource distribution, and vegetation information affects the difficulty of land development. Road and settlement information represents regional transportation and population distribution. Multi-year geographic information can reflect dynamic changes and support land planning.

[0058] S13: Generate a spatial distribution image of the target planning area based on the geographic feature information and location information.

[0059] For example, a digital elevation model of the target area is constructed based on topographic and other geographic feature data. Based on the elevation model, the land use classification results are used to render colors corresponding to different land use types, creating a land use classification map for the planning area. Location information such as roads and rivers, as well as annotation symbols for settlements and administrative divisions, are overlaid on the land use classification map to reflect the internal structure of the region. Appropriate legend orientation annotations are set to output a high-definition spatial distribution image. This method can intuitively display the overall land use structure and inherent layout characteristics of the target planning area. The spatial distribution image clearly identifies the distribution of landforms such as mountains, plains, and water bodies, as well as the distribution of the ranges of various land uses, and can derive geographic features used for land planning and identification. The overlay of location information such as roads and settlements reveals the internal structural relationships of the region. This spatial distribution image provides an important reference for the subsequent formulation of land use planning schemes.

[0060] S20: Based on the land information, determine multiple first areas and second areas, and at least one third area, where the first area is an area of ​​unusable land in the target planning area, the second area is an area of ​​usable land in the target planning area, and the third area is the interval area between two adjacent first areas, or two adjacent second areas.

[0061] Among them, the first area refers to the unusable land area within the target planning area, including land that has been used for construction or agricultural production. The first area reflects the area that cannot be redeveloped under the current circumstances.

[0062] The second area refers to the usable land area within the target planning area, including undeveloped wasteland, grassland, etc. The second area reflects the land resource area that can be used for new construction or agricultural production.

[0063] The third area refers to the interval area between the first area or the second area. It is an area that has not been considered in previous land planning and can be reasonably utilized through land planning to improve land utilization rate.

[0064] Specifically, after obtaining the land information of the target planning area, i.e., the spatial distribution image of the land, the system can extract the information of each layer in the land information according to a preset algorithm and further divide the spatial distribution image of the land into regions. The specific steps of the region division include S21 to S22:

[0065] S21: Extracting a construction map layer, an agricultural map layer, and an unused map layer from the spatial distribution image.

[0066] Among them, the construction map layer represents the land area within the target planning area that has been used for construction purposes such as buildings, transportation, and public facilities. It is extracted through image classification and reflects the distribution of utilized land resources in the area.

[0067] The agricultural map layer represents the land areas within the target planning area that have been used for agricultural production, such as planting, forestry, and animal husbandry. It is extracted through image classification and reflects the distribution of land resources that have been developed and utilized in agriculture and other fields within the region.

[0068] The unused map layer represents the land that has not been developed and utilized in the target planning area, such as wasteland and grassland. It is extracted through image classification and reflects the distribution of undeveloped land resources in the area. This land has development and utilization potential.

[0069] For example, typical samples are selected and a supervised classification method is used to train a land use classification model. The model includes three categories: construction land, agricultural land, and unused land. The trained model is used to classify the pixels in the spatial distribution image to obtain the original layer image. The original layer image is subjected to region growing and boundary refinement to obtain a construction map layer, an agricultural map layer, and an unused map layer with clear classification boundaries. Based on the layer, the area values ​​of each category are counted, and a vector layer in geocoding format is exported to fully preserve the spatial range information of the three types of land use. Through this method, the geographic distribution data of the target area classified by land use type can be accurately extracted from the intuitive spatial distribution image, laying the foundation for the subsequent determination of different types of utilization areas. The three-category utilization layer divides the land resources in the target planning area into three states: developed, exploitable, and unused. It reflects the utilization structure within the region and is an important reference for land planning. Its vectorized data format also facilitates overlay analysis with other spatial data.

[0070] S22: Determine a first area based on the construction map layer and the agricultural map layer; and determine a second area based on the unused map layer.

[0071] For example, the GIS's clipping analysis tool is used for the construction and agricultural map layers to precisely clip the spatial boundaries of these two types of utilized land. These layers are then merged to obtain the extent of all utilized land within the target area, namely the construction and agricultural map layers. This is then identified as the first area, which cannot be further developed. For the unused map layer, the clipping tool is used to obtain the spatial extent of the unused land, which is then identified as the second area, which can be further developed. The areas of the two types of areas are calculated and their coordinate ranges are recorded, completing the extraction and identification of the first and second areas. This method accurately delineates the extent of unused and still-usable land within the target planning area based on land use, providing a basis for subsequent rational land resource planning. The first area reflects the distribution of utilized land resources within the area, while the second area reflects the spatial extent available for development. The identification of these two areas provides a clear overview of land resource utilization, helping land planning departments formulate scientific and rational utilization strategies.

[0072] S30: determining a first area ratio according to the area of ​​the first region and the area of ​​the second region, and determining a second area ratio according to the area of ​​the third region and the area of ​​the first region.

[0073] The first area ratio is the ratio of the area of ​​each first area to the area of ​​the second area, reflecting the proportion of each unusable land area to the total usable land area.

[0074] The second area ratio is the ratio of the area of ​​each third region to the areas of the two adjacent first regions or the areas of the two adjacent second regions, reflecting the area ratio of each interval region to the adjacent unusable land area or usable land area.

[0075] Specifically, to assess the remaining land resources around each first region and the potential for incorporation into each third region, it is necessary to calculate the area ratio of each first region to the adjacent second region as the first area ratio, and the area ratio of each third region to the adjacent first region as the second area ratio. For each first region, the GIS's adjacent area search tool is used to calculate the ratio of each first region to the total area of ​​the second region as the first area ratio for that first region. For each third region, two adjacent first regions or two adjacent second regions are identified, and the area ratio of each third region to the two adjacent first regions or second regions is calculated as the second area ratio for that third region. This creates an area ratio dataset containing the first area ratio for each first region and the second area ratio for each third region. This method can quantify the remaining available land around each first region and the potential for incorporation into each third region, providing a basis for the subsequent development of utilization strategies for different regions.

[0076] S40: Constructing land space information of the third region according to the first area ratio and the second area ratio.

[0077] Land spatial information refers to the new layout of all land within the target planning area, formed after calculating the area ratio and planning utilization of the intervening areas (i.e., the third area) and the first area. This spatial distribution image, generated through rendering, reflects the new layout of land after rationally planning and utilizing the third and first areas based on the area ratio. This image includes complete land use information after planning optimization, including the category, coordinate range, and land use type of each area. This new land spatial layout, formed by further improving the utilization of the intervening areas based on existing land use, provides a basis for the rational and efficient use of land resources.

[0078] Specifically, after obtaining each first area ratio and each second area ratio, the system performs land planning on the third area and the first area with a smaller proportion according to the first area ratio and the second area ratio using a preset division rule, thereby re-laying out new land planning information and generating corresponding land space information, i.e., a spatial distribution image. The specific steps of re-planning land according to the preset division rule include S41 to S43:

[0079] S41: Determine whether the first area ratio is less than a preset first area ratio; if the first area ratio is less than a preset standard area ratio, use the first area corresponding to the first area ratio as the second area.

[0080] Exemplarily, for the constructed area ratio data set, the first area ratio results of each first area are retrieved one by one and compared with the preset threshold. If it is found that the first area ratio of a first area is lower than the threshold, it means that there are many available second areas around the first area, and then the first area can be considered for re-planning and utilization. In the geographic information system, the corresponding area category attribute is changed from "first area" to "second area", that is, it is adjusted from an undevelopable area to a developable area. Repeat this judgment process until the judgment of all first areas is completed. Through this method, the dynamic adjustment of land categories can be realized based on the first area ratio results, and some undevelopable areas can be changed to developable areas, thereby further improving the comprehensive utilization efficiency and planning benefits of the land. The new area division results will also be reflected in the subsequently generated land space information.

[0081] S42: Determine whether the second area ratio is less than a preset second area ratio; if the second area ratio is less than the preset second area ratio, use the interval area as two adjacent first areas or two adjacent second areas corresponding to the second area ratio.

[0082] Exemplarily, for the constructed area ratio dataset, the second area ratio results of each third area are retrieved one by one and compared with the preset threshold. If it is found that the second area ratio of a third area is lower than the threshold, it means that the area of ​​the interval area is small, and it can be considered to be merged into the adjacent first area or second area. The specific approach is that in the geographic information system, according to the category of its adjacent area, the area attribute of the third area is reclassified into the category of the adjacent area, that is, it is merged into the adjacent first area or second area. Repeat this judgment process until the processing of all third areas is completed. Through this method, the interval areas can be dynamically adjusted and merged based on the second area ratio results, and these small interval lands can be effectively utilized to improve land use efficiency. The category of the merged area will also be reflected in the subsequently generated land space information.

[0083] Based on the above embodiment, if the land use types of two adjacent first areas are different, they need to be merged. The specific steps include:

[0084] For example, in a geographic information system, for each third area determined to be incorporated into the first area, the land use type attribute data of its adjacent areas are extracted for judgment and comparison. If the land use types of the first areas on both sides are the same, that is, both are construction land or agricultural land, the land use type of the third area is set to the same type. For example, if both sides are construction land, then the third area is classified as construction land. This judgment process is repeated until the land use types of all third areas are determined. Through this method, the land use type of the interval area can be kept consistent with that of the adjacent first area, so that the newly used area can be integrated with the original area, improving the rationality of land use. The adjusted land use type will also be reflected in the land space information generated later.

[0085] For example, in the geographic information system, the land use types of the adjacent areas on both sides of the interval area are read, and at least two different types are selected from construction land, agricultural land, and permanent farmland as components of the composite land. For example, if one adjacent side is construction land and the other side is agricultural land, the interval area can be planned as a composite land of construction land and agricultural land. The composite land type is updated to the land use attribute of the interval area. In this way, different land use needs can be taken into account within a limited interval area, and the efficiency and benefits of comprehensive land utilization can be improved. The new composite land type will also be reflected in the subsequently generated land spatial distribution information.

[0086] Reference Figure 2 , is a land space information construction system provided by an embodiment of the present application, the system includes: an information acquisition module, a region division module, a region calculation module, and an information construction module, wherein:

[0087] Information acquisition module, used to obtain land information of the target planning area;

[0088] A region division module is configured to determine, based on the land information, a plurality of first regions and second regions, and at least one third region, wherein the first region is an area in the target planning area where land cannot be used, the second region is an area in the target planning area where land can be used, and the third region is an interval region between two adjacent first regions or two adjacent second regions;

[0089] an area calculation module, which determines a first area ratio based on the area of ​​the first area and the area of ​​the second area, and determines a second area ratio based on the area of ​​the third area and the area of ​​the first area or the area of ​​the second area;

[0090] The information construction module is used to construct land space information of the third area according to the first area ratio and the second area ratio.

[0091] Based on the above embodiment, the information acquisition module is also used to obtain the coordinate string information of the target planning area for multiple years; according to the GIS database, the geographic feature information and location information corresponding to the coordinate string information of multiple years are queried; based on the geographic feature information and location information, a spatial distribution image of the target planning area is generated.

[0092] Based on the above embodiment, the region division module is also used to extract the construction map layer, agricultural map layer and unused map layer in the spatial distribution image; determine the first region based on the construction map layer and agricultural map layer; and determine the second region based on the unused map layer.

[0093] Based on the above embodiment, the information construction module is further used to determine whether the first area ratio is less than a preset first area ratio; if the first area ratio is less than the preset standard area ratio, the first area corresponding to the first area ratio is used as the second area.

[0094] Based on the above embodiment, the information construction module is also used to determine whether the second area ratio is less than the preset second area ratio; if the second area ratio is less than the preset second area ratio, the interval area is regarded as the two adjacent first areas or the two adjacent second areas corresponding to the second area ratio.

[0095] Based on the above embodiment, the information construction module is also used to determine whether the land use types of the two adjacent first areas corresponding to the second area ratio are the same; if the land use types of the two adjacent first areas corresponding to the second area ratio are the same, the land use type of the interval area is selected as one of construction land, agricultural land and permanent farmland.

[0096] Based on the above embodiment, the information construction module is also used to select at least two land types from construction land, agricultural land and permanent farmland as composite land if the land types of the two adjacent first areas corresponding to the second area ratio are different; and the land type of the interval area is used as composite land.

[0097] It should be noted that the above embodiments provide devices that implement their functions using only the division of the above functional modules as examples. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiments are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0098] This application also discloses an electronic device. Figure 3 , Figure 3The electronic device 300 may include: at least one processor 301 , at least one network interface 304 , a user interface 303 , a memory 305 , and at least one communication bus 302 .

[0099] The communication bus 302 is used to implement the connection and communication between these components.

[0100] The user interface 303 may include a display interface and a camera interface. Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0101] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0102] The processor 301 may include one or more processing cores. Using various interfaces and circuits, the processor 301 connects to various components within the server. It executes instructions, programs, code sets, or instruction sets stored in the memory 305, as well as accesses data stored in the memory 305, to perform various server functions and process data. Optionally, the processor 301 may be implemented using at least one of the following hardware forms: a digital signal processing (DSP), a field-programmable gate array (FPGA), or a programmable logic array (PLA). The processor 301 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily processes the operating system, user interface graphics, and application programs; the GPU is responsible for rendering and drawing content displayed on the display screen; and the modem handles wireless communications. It is understood that the modem may also be implemented as a separate chip, rather than integrated into the processor 301.

[0103] Among them, the memory 305 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 305 may also optionally be at least one storage device located away from the aforementioned processor 301. Refer to Figure 3 , the memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module and an application program of a method for constructing land spatial information.

[0104] exist Figure 3 In the electronic device 300 shown, the user interface 303 is mainly used to provide an input interface for the user and obtain the data input by the user; and the processor 301 can be used to call an application program for a method of constructing land spatial information stored in the memory 305. When executed by one or more processors 301, the electronic device 300 executes one or more methods such as those in the above-mentioned embodiments. It should be noted that for the aforementioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited to the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for this application.

[0105] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of units, which is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interface, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0107] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0108] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0109] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of this application, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the method of this application. The aforementioned memory includes various media that can store program code, such as USB flash drives, mobile hard drives, magnetic disks, or optical disks.

[0110] The above are merely exemplary embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. In other words, any equivalent variations and modifications made in accordance with the teachings of the present disclosure are still within the scope of the present disclosure. Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the disclosure and the practical implications thereof.

[0111] This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not described herein. The description and examples are to be considered as exemplary only, and the scope and spirit of the present disclosure are to be defined by the claims.

Claims

1. A method for constructing land spatial information, characterized in that: include: Obtain land information of the target planning area; Determining, based on the land information, a plurality of first areas and second areas, and at least one third area, wherein the first area is an area in the target planning area where land cannot be used, the second area is an area in the target planning area where land can be used, and the third area is an interval area between two adjacent first areas or two adjacent second areas; determining a first area ratio based on the area of ​​the first area and the area of ​​the second area, and determining a second area ratio based on the area of ​​the third area and the area of ​​the first area or the area of ​​the second area; Constructing land spatial information of the third area according to the first area ratio and the second area ratio, including: determining whether the first area ratio is less than a preset first area ratio; If the first area ratio is smaller than the preset standard area ratio, the first area corresponding to the first area ratio is used as the second area; determining whether the second area ratio is less than a preset second area ratio; If the second area ratio is smaller than the preset second area ratio, the interval area is regarded as two adjacent first areas or two adjacent second areas corresponding to the second area ratio.

2. The method for constructing land spatial information according to claim 1, characterized in that: The land information includes a spatial distribution image, and obtaining the land information of the target planning area includes: Obtaining coordinate string information of the target planning area for multiple years; According to the GIS database, query the geographic feature information and location information corresponding to the coordinate string information of the multiple years; The spatial distribution image of the target planning area is generated according to the geographic feature information and the location information.

3. The method for constructing land spatial information according to claim 1, characterized in that: The land information includes a spatial distribution image, and determining a plurality of first areas and second areas, and at least one third area based on the land information includes: extracting a construction map layer, an agricultural map layer, and an unused map layer from the spatial distribution image; determining the first area according to the construction map layer and the agricultural map layer; The second area is determined based on the unused map layer.

4. The method for constructing land spatial information according to claim 1, characterized in that: The land use types of the first area include construction land, agricultural land, and permanent farmland. If the second area ratio is less than the preset second area ratio, the interval area is used as the first area corresponding to the second area ratio, including: determining whether the land use types of two adjacent first areas corresponding to the second area ratio are the same; If the land use types of the two adjacent first areas corresponding to the second area ratio are the same, the land use type of the interval area is selected as one of the construction land, the agricultural land and the permanent farmland.

5. The method for constructing land spatial information according to claim 4, characterized in that: After determining whether the land use types of two adjacent first areas corresponding to the second area ratio are the same, the method further includes: If the land use types of the two adjacent first areas corresponding to the second area ratio are different, at least two land use types among the construction land, the agricultural land and the permanent farmland are selected as composite land; The land use type of the interval area is set as the composite land use.

6. A land space information construction system, characterized in that: The system comprises: Information acquisition module, used to obtain land information of the target planning area; an area division module, configured to determine, based on the land information, a plurality of first areas and second areas, and at least one third area, wherein the first area is an area in the target planning area where land cannot be used, the second area is an area in the target planning area where land can be used, and the third area is an interval area between two adjacent first areas or two adjacent second areas; an area calculation module, which determines a first area ratio according to the area of ​​the first area and the area of ​​the second area, and determines a second area ratio according to the area of ​​the third area and the area of ​​the first area or the area of ​​the second area; An information construction module, configured to construct land spatial information of the third region based on the first area ratio and the second area ratio, includes: determining whether the first area ratio is less than a preset first area ratio; If the first area ratio is smaller than the preset standard area ratio, the first area corresponding to the first area ratio is used as the second area; determining whether the second area ratio is less than a preset second area ratio; If the second area ratio is smaller than the preset second area ratio, the interval area is regarded as two adjacent first areas or two adjacent second areas corresponding to the second area ratio.

7. An electronic device, characterized in that: The device comprises a processor, a memory, a user interface and a network interface, wherein the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory so that the electronic device executes a land space information management method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores instructions, and when the instructions are executed, the steps of the land spatial information management method according to any one of claims 1 to 5 are executed.

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