Method and device for determining standard unit of national land space statistics using data calculation

Abstract

The present application relates to a method and device for determining a national land space statistical standard unit using data calculation, which belongs to the technical field of national land space big data processing, and solves the problems of the existing statistical unit division method lacking multi-scale adaptability, unreasonable boundary control and unstable spatial structure. The national land space statistical standard unit determination method constructs a first-level patch unit based on multi-source spatial data, and performs geometric structure optimization on the first-level patch unit to form a second-level patch unit; performs spatial neighborhood merging optimization processing and integrity constraint verification processing on the second-level patch unit to obtain the minimum functional statistical standard unit; divides each minimum functional statistical standard unit according to the set level, and performs neighborhood search and merging on the minimum functional statistical standard unit in each set level that is smaller than the corresponding first set area threshold, to determine the national land space statistical standard unit of each set level. The present application has the advantages of multi-scale adaptability, reasonable boundary control and stable spatial structure.

Description

Technical Field

[0001] The present application relates to the technical field of land space planning data processing, and in particular to a method and device for determining land space statistical standard units using data calculation. Background Art

[0002] National land space planning is the long-term planning and overall arrangement of the land resources and layout within a jurisdiction. It aims to achieve effective control and scientific governance of land space and promote a balance between development and protection. In recent years, national land space planning has gradually shifted from traditional "land use layout control" to "functional integrated management" and "multi-objective integrated coordination," placing higher demands on the expressiveness and application adaptability of spatial information units.

[0003] Functional statistical standard units divide national territory into quantifiable, comparable, and updateable basic statistical units. These units are used to carry a variety of attribute information, including land use structure, ecological protection needs, population distribution, and spatial development intensity. They serve as the data foundation for applications such as functional identification, classification analysis, scenario simulation, and policy evaluation. In practical applications, they must simultaneously meet complex requirements, including clear spatial boundaries, aggregatable attribute data, hierarchical functional expression, and adaptability to multi-scale tasks. In national territory planning, the Territory Information Model (TIM) is gaining popularity. TIM is an open information model framework that integrates with existing standards and models, including BIM / CIM. Based on existing GIS data models, TIM will further expand basic models, including spatial entities, activity complexes, and network models, to meet the requirements of global and full-space data representation. The national territory functional statistical standard unit is the smallest entity depicted by the TIM. It serves as the fundamental unit for the implementation, monitoring, and management of national territory planning, and is crucial for ensuring the accuracy and scientific nature of data from major functional analyses. These units typically have standardized and coded names and are defined based on specific indicators.

[0004] However, the existing functional statistical standard unit division scheme mainly relies on administrative divisions, land status maps or traditional geographical division units. When facing the needs of multi-scale national land space functional statistics, the following technical problems still need to be solved urgently: Lack of multi-scale adaptability: The division granularity of the existing scheme is fixed, and it cannot flexibly aggregate scales according to different analysis objectives and planning levels. It is difficult to support integrated spatial analysis from micro-control to macro-assessment. Unreasonable boundary control: The division process fails to systematically introduce spatial control lines, which easily causes functional units to cross the control boundary, affecting the boundary consistency and operability of the plan. Unstable spatial structure: Due to the lack of a unified spatial rule and data fusion mechanism, the patch morphology is fragmented, the area is disparate, and the boundaries are complex, which is not conducive to spatial statistics and subsequent model analysis, nor is it conducive to the scientific, dynamic and intelligent management of national land space. Summary of the Invention

[0005] In view of the above analysis, the embodiments of the present invention aim to provide a method and device for determining the standard unit of national land space statistics using data calculation, so as to solve the problems of lack of multi-scale adaptability, unreasonable boundary control and unstable spatial structure in the existing national land space statistical unit division scheme.

[0006] The present application provides a method for determining a standard unit of land space statistics using data calculation, including the following steps:

[0007] Constructing a first-level patch unit based on multi-source spatial data, and optimizing the geometric structure of the first-level patch unit to form a second-level patch unit;

[0008] Perform spatial neighborhood merging optimization and integrity constraint verification on the secondary patch units in sequence to obtain the minimum functional statistical standard unit;

[0009] Divide each minimum functional statistical standard unit according to the set level, and perform neighborhood search and merging on the minimum functional statistical standard units within each set level that are smaller than the corresponding first set area threshold to determine the national land space statistical standard units of each set level;

[0010] Neighborhood search merging includes the following steps:

[0011] Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge:

[0012] ;

[0013] like , the merge is complete; otherwise, it enters the second neighborhood search merge:

[0014] ;

[0015] like , the merge is complete; otherwise, it enters the third neighborhood search merge:

[0016] ;

[0017] like , the merger is completed;

[0018] in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set the area threshold for the first.

[0019] The method for determining the national land space statistical standard unit using data calculation in the embodiment of the present application integrates and processes multi-source national land space data based on spatial data calculation rules, and constructs a standardized, data-driven minimum functional statistical standard unit division model. It can generate minimum functional statistical standard units with unified spatial granularity and adapt to multi-scale planning goals, significantly improve the spatial support accuracy and analysis application basis of national land space planning implementation, and help to realize the scientific, dynamic and intelligent management of national land space.

[0020] As one of the optional embodiments, the process of constructing a first-level patch unit based on multi-source spatial data includes the following steps:

[0021] Acquire multi-source spatial data, including nature reserve boundary data, watershed boundary data, village and community boundary data, road network data, and land use status data.

[0022] Perform unified coordinate projection transformation, vector boundary topology correction and format standardization on multi-source spatial data to obtain multi-source processed data;

[0023] Based on the spatial overlay analysis of multi-source processed data, the surface element segmentation operation is used to generate initial spatial patches to form the first-level patch units.

[0024] As one of the optional embodiments, the process of performing geometric structure optimization on the primary patch unit to form the secondary patch unit includes the steps of:

[0025] The first-level patch units with a perimeter-to-area ratio less than the set ratio are merged with the adjacent patches;

[0026] Neighbor merging is performed on the first-level patch units whose area is smaller than the area control threshold.

[0027] As one of the optional embodiments, the process of performing spatial neighborhood merging optimization processing on the secondary patch unit includes the steps of:

[0028] A spatial neighborhood merging optimization process is performed on the secondary patch units whose area is smaller than the second set area threshold.

[0029] As one of the optional embodiments, the integrity constraint verification process is as follows:

[0030] If the unit is set satisfy , delete the setting unit Medium and Minimum Functional Statistical Standard Unit The intersection part is used as the new minimum functional statistical standard unit; among them, and Display and setting unit Minimum functional statistical standard unit of intersection;

[0031] For the smallest administrative area boundary , which is expressed as: ;in, represents the minimum functional statistical standard unit, Indicates administrative unit;

[0032] like and , then the standard unit is counted according to the minimum function The smallest administrative area boundary Perform re-segmentation.

[0033] As one of the optional embodiments, the first set area threshold corresponds to a set level, and is the lower quartile of all minimum functional statistical standard units in the corresponding set level.

[0034] As one of the optional embodiments, the method further includes the steps of:

[0035] Construct standard geographic information system layers and attribute tables based on the national land space statistics standard units at each set level.

[0036] The embodiment of the present application further provides a device for determining a national land space statistical standard unit using data calculation, comprising:

[0037] The unit initialization module is used to construct the first-level patch unit according to the multi-source spatial data and optimize the geometric structure of the first-level patch unit to form the second-level patch unit;

[0038] The unit preprocessing module is used to perform spatial neighborhood merging optimization processing and integrity constraint verification processing on the secondary patch units in sequence to obtain the minimum functional statistical standard unit;

[0039] The unit division module is used to divide each minimum functional statistical standard unit according to the set level, and perform neighborhood search and merging on the minimum functional statistical standard unit that is smaller than the corresponding first set area threshold in each set level to determine the national land space statistical standard unit of each set level;

[0040] Neighborhood search merging includes the following steps:

[0041] Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge:

[0042] ;

[0043] like , the merge is complete; otherwise, it enters the second neighborhood search merge:

[0044] ;

[0045] like , the merge is complete; otherwise, it enters the third neighborhood search merge:

[0046] ;

[0047] like , the merger is completed;

[0048] in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set the area threshold for the first.

[0049] The device for determining national land space statistical standard units using data calculation in the embodiment of the present application integrates and processes multi-source national land space data based on spatial data calculation rules, and constructs a standardized, data-driven minimum functional statistical standard unit division model. It can generate minimum functional statistical standard units with unified spatial granularity and adapt to multi-scale planning goals, significantly improve the spatial support accuracy and analysis application basis of national land space planning implementation, and help to realize scientific, dynamic and intelligent national land space governance.

[0050] At least one embodiment of the present application further provides a data control device, including:

[0051] one or more memories that non-transitorily store computer-executable instructions;

[0052] One or more processors are configured to run computer-executable instructions, wherein the computer-executable instructions, when executed by one or more processors, implement a method for determining a standard unit of land and space statistics using data calculation according to any embodiment of the present application.

[0053] The above-mentioned data control device, based on spatial data calculation rules, integrates and processes multi-source national land space data, constructs a standardized, data-driven minimum functional statistical standard unit division model, and can generate minimum functional statistical standard units with unified spatial granularity and adapt to multi-scale planning goals, significantly improving the spatial support accuracy and analysis application basis for the implementation of national land space planning, and helping to realize the scientific, dynamic and intelligent management of national land space.

[0054] At least one embodiment of the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, implement a method for determining a standard unit of land and space statistics using data calculation according to any embodiment of the present application.

[0055] The above-mentioned non-transient computer-readable storage medium, based on spatial data calculation rules, integrates and processes multi-source national land space data, and constructs a standardized, data-driven minimum functional statistical standard unit division model. It can generate minimum functional statistical standard units with unified spatial granularity and adapt to multi-scale planning goals, significantly improving the spatial support accuracy and analysis application basis of national land space planning implementation, and helping to realize the scientific, dynamic and intelligent management of national land space. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 A flow chart of a method for determining a standard unit for land and space statistics using data calculation according to an embodiment of the application;

[0057] Figure 2This is a module structure diagram of a device for determining a national land space statistical standard unit using data calculation according to an embodiment of the application;

[0058] Figure 3 A schematic block diagram of a data control device provided by the present invention;

[0059] Figure 4 A schematic diagram of a non-transitory computer-readable storage medium provided by the present invention. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] Unless otherwise defined, the technical or scientific terms used in this application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0062] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits detailed descriptions of some known functions and known components.

[0063] An embodiment of the present application provides a method for determining standard units of land and space statistics using data calculation.

[0064] Figure 1 This is a flow chart of a method for determining a standard unit of land space statistics using data calculation in an embodiment of an application, such as Figure 1 As shown, a method for determining a national land space statistical standard unit using data calculation in an embodiment of the application includes steps S100 to S103:

[0065] S100, constructing a first-level patch unit according to multi-source spatial data, and optimizing the geometric structure of the first-level patch unit to form a second-level patch unit;

[0066] S101, performing spatial neighborhood merging optimization processing and integrity constraint verification processing on the secondary patch units in sequence to obtain the minimum functional statistical standard unit;

[0067] S102, dividing each minimum functional statistical standard unit according to the set level, and performing neighborhood search and merging on the minimum functional statistical standard units within each set level that are smaller than the corresponding first set area threshold to determine the national land space statistical standard units of each set level;

[0068] Neighborhood search merging includes the following steps:

[0069] Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge:

[0070] ;

[0071] like , the merge is complete; otherwise, it enters the second neighborhood search merge:

[0072] ;

[0073] like , the merge is complete; otherwise, it enters the third neighborhood search merge:

[0074] ;

[0075] like , the merger is completed;

[0076] in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set the area threshold for the first.

[0077] Specifically, the minimum function statistical standard unit As the center, the first neighborhood search and merging is performed. Definition for and its first-order neighboring units The sum of the areas of . Select the neighborhood set accordingly The smallest unit in the Merge and calculate the combined area:

[0078] ;

[0079] in, Representation and Unit The set of adjacent first-order neighborhood units, Represents a neighborhood unit If , the merge is completed; otherwise, it enters the second neighborhood search merge.

[0080] Counting standard units with minimum functionality As the center, the second neighborhood search and merging is performed. Definition for and its second-order neighboring units The sum of the areas of . Select the neighborhood set accordingly The smallest unit in the Merge and calculate the combined area:

[0081] ;

[0082] in, Representation and Unit The set of adjacent second-order neighborhood units, Represents a neighborhood unit If , the merge is completed; otherwise, it enters the third neighborhood search merge.

[0083] Counting standard units with minimum functionality As the center, the third neighborhood search and merging is performed. Definition for and its third-order neighboring units The sum of the areas of . Select a neighborhood set The smallest unit in the Merge and calculate the combined area:

[0084] ;

[0085] in, Representation and Unit The set of adjacent third-order neighborhood units, Represents a neighborhood unit If , the merge is completed.

[0086] Through the above steps, each time the neighborhood is merged, the unit with the smallest area is selected for merging. If a certain merger satisfies (in ), then the unit If the units are successfully merged, the subsequent merging operations will continue until all units meet the merging conditions or the maximum number of merging times is reached.

[0087] S103, constructing a standard geographic information system layer and attribute table according to the national land space statistical standard units of each set level.

[0088] Among them, multi-source spatial data include nature reserve boundary data, watershed boundary data, village and community boundary data, road network data and land use status data.

[0089] Preferably, the process of constructing the primary patch unit according to the multi-source spatial data in step S100 includes the following steps:

[0090] Acquire multi-source spatial data;

[0091] Perform unified coordinate projection transformation, vector boundary topology correction and format standardization on multi-source spatial data to obtain multi-source processed data;

[0092] Based on the spatial overlay analysis of multi-source processed data, the surface element segmentation operation is used to generate initial spatial patches to form the first-level patch units.

[0093] By acquiring multi-source spatial data closely related to national land spatial divisions and performing unified coordinate projection transformation, vector boundary topology correction, and format standardization on these data, we ensure data superposition and boundary closure in the subsequent spatial division process. This step is the prerequisite for forming the foundation for spatial division and ensures the consistency and integrity of the source data.

[0094] Based on the processed watershed boundary data and road network data, spatial overlay analysis was performed, and initial spatial patches were generated using a planar feature segmentation operation, forming a primary patch set consisting of multiple primary patch units. This operation uses both natural boundaries (watershed) and artificial boundaries (roads) as the spatial division framework, ensuring the coordination of the division results between ecological and development logic, and constructing basic units with clear boundaries and physical separation.

[0095] Based on this, the process of optimizing the geometric structure of the primary plaque unit in step S101 to form the secondary plaque unit includes the following steps:

[0096] For the first-level patch units whose perimeter-to-area ratio is less than the set ratio, boundary adsorption and adjacent patch merging are performed;

[0097] Neighbor merging is performed on the first-level patch units whose area is smaller than the area control threshold.

[0098] To optimize the geometric structure of the first-level patch unit, first calculate the perimeter area ratio of each first-level patch unit , which is used to judge the regularity of its spatial form. The ratio is defined as follows:

[0099] ;

[0100] in, represents the perimeter of the first-level patch unit, represents the area of ​​the first-level patch unit, The larger the value, the more complex the boundary of the unit area and the more fragmented the patch. , when a certain level of patch unit meets (For example, if the ratio is set to 10, it is judged as a broken patch. At this time, the boundary adsorption and adjacent patch merging processing are performed on the first-level patch unit to improve the regularity of the patch shape and the simplicity of the boundary. At the same time, the area control threshold is set , for areas smaller than The first-level patch units are also merged adjacently to avoid forming spatial units with too fine statistical granularity, and finally generate second-level patch units with regular morphology that meet the requirements of subsequent analysis.

[0101] Based on the secondary patch units, the area scale is verified to screen out the units with independent analysis value, and the spatial neighborhood merging optimization is performed on the secondary patch units with smaller areas to further improve the statistical stability and analytical adaptability of the spatial units.

[0102] Preferably, the process of performing spatial neighborhood merging optimization processing on the secondary patch unit in step S101 includes the following steps:

[0103] A spatial neighborhood merging optimization process is performed on the secondary patch units whose area is smaller than the second set area threshold.

[0104] Specifically, calculate each secondary patch unit Area and set the area threshold with the second setting The second set area threshold can be set as the lower quartile of the area set of all secondary patch units, that is:

[0105] ;

[0106] Among them, the second set area threshold Represents the lower quartile statistic of the secondary patch unit area set, is the number of plaques. The patches with an area smaller than the threshold are directly used as candidate statistical units by retaining their boundary and attribute information. The secondary patch unit triggers the spatial neighborhood merging optimization process.

[0107] The spatial neighborhood merging optimization process is based on the following principles: 1. Spatial adjacency priority principle: select from adjacent patches that have direct boundary contact with the current secondary patch unit; 2. Use similarity priority principle: give priority to merging secondary patch units with the most similar land use types or functional attributes; 3. Minimum boundary increment principle: among multiple mergable objects, give priority to the target with the smallest new boundary length after merging to minimize morphological disturbance.

[0108] Through the above strategy, patches with insufficient area are merged in an orderly manner, and the boundaries and area values ​​of the secondary patch units are updated after each merger. Ultimately, a set of candidate secondary patch units with areas that meet the threshold requirements and have high spatial stability is generated, which serves as input data for the next step of integrity verification.

[0109] Preferably, the integrity constraint check process in step S101 is as follows:

[0110] If the unit is set satisfy , delete the setting unit Medium and Minimum Functional Statistical Standard Unit The intersection part is used as the new minimum functional statistical standard unit; among them, and Display and setting unit Minimum functional statistical standard unit of intersection;

[0111] For the smallest administrative area boundary , which is expressed as: ;in, represents the minimum functional statistical standard unit, Indicates administrative unit;

[0112] like and , then the standard unit is counted according to the minimum function The smallest administrative area boundary Perform re-segmentation.

[0113] Although the secondary patch unit set obtained after spatial neighborhood merging optimization meets the basic area requirements, further verification of its legitimacy and consistency in terms of spatial logic and planning boundaries is still required. Therefore, this step performs a multi-dimensional spatial integrity constraint check on each secondary patch unit to eliminate units with potential problems such as cross-border or fragmentation, ensuring the manageability and policy compatibility of the subsequently constructed minimum functional statistical standard unit.

[0114] Among them, the setting unit There are three types of plot units: ; Nature reserve unit ; Small watershed unit The integrity constraint verification process includes the following three steps:

[0115] Plot unit integrity check: The minimum functional statistical standard unit obtained by division should ensure the integrity of the plot unit. Suppose the plot unit set is , the standard unit set is , if there is a certain plot unit , and two or more standard units at the same time intersect, and , that is, the conditions are met:

[0116] ;

[0117] in, Represents the plot unit, and Represents The minimum functional statistical standard unit of intersection. If the above conditions are met, the plot unit is considered is split, violating the integrity constraint. Minimum functional statistical standard unit of intersection , delete the plot unit The intersection part, the plot unit As part of the new minimum functional statistical standard unit, thus restoring the plot unit Spatial integrity.

[0118] Integrity check of nature reserves: As the bottom line of ecological security, nature reserves are required to maintain their spatial closure and functional continuity during the division process. If a nature reserve unit At the same time, it is cross-covered by two or more minimum functional statistical standard units, that is, there is

[0119] ;

[0120] in, represents a nature reserve unit, and Represents If the above conditions are met, the nature reserve will be considered to be fragmented, violating the ecological integrity requirements. In this case, the boundary of the nature reserve should be used as the control basis, and each unit of the nature reserve should be controlled. Minimum functional statistical standard unit of intersection , delete the nature reserve unit The intersection will be the nature reserve unit As part of the new minimum functional statistics standard unit.

[0121] Small watershed integrity check: As a basic hydrological analysis unit, the small watershed should maintain its spatial integrity. Suppose the small watershed set is , if exists , and multiple units simultaneously Intersect, meet

[0122] ;

[0123] in, represents a small watershed unit, and Represents The minimum functional statistical standard unit of intersection. If the above conditions are met, the small watershed unit If the watershed is cut off and does not meet the hydrological connectivity requirements of the watershed division, it should be fully integrated into a unit through boundary adjustment. Minimum functional statistical standard unit of intersection , delete the small watershed unit Intersection. As part of the new minimum functional statistics standard unit.

[0124] Administrative boundary consistency check: based on the minimum administrative area boundary , requiring that patches should not span multiple administrative units, expressed in the form of

[0125] ;

[0126] in, Represents an administrative unit, Represents the minimum functional statistical standard unit.

[0127] If there is a patch unit With multiple administrative units Intersect, that is, satisfy:

[0128] and ;

[0129] This violates administrative boundary consistency and the patch should be re-divided according to the administrative unit boundaries to ensure that the divided units are administratively logically operable. This re-division operation ensures that the divided patch units are administratively logically operable and avoids management and planning conflicts caused by inconsistent boundaries.

[0130] By screening each of the four integrity conditions, patches that simultaneously meet all integrity constraints are retained as the official minimum functional statistical standard unit. Patches with integrity conflicts are then subjected to boundary correction, neighborhood merging, or split reconstruction, depending on the conflict type, until all integrity criteria are met. After this process, the output minimum functional statistical standard unit has the spatial properties of clear boundaries, independent closure, and not crossing critical control lines.

[0131] After completing the integrity constraint verification process, a minimum set of functional statistical standard units that meets all boundary control conditions has been obtained. Based on this set, this step sets the hierarchy according to a "bottom-up" spatial aggregation strategy, including administrative village / community level, township and street level, and county and district level, to form a unified logical and hierarchical adaptive national land space statistical unit system.

[0132] Preferably, the first set area threshold corresponds to the set level, and is the lower quartile of all minimum functional statistical standard units in the corresponding set level, that is:

[0133] Determine each minimum functional statistical standard unit Whether the area reaches the first set area threshold , the first set area threshold To set the lower quartile of the minimum functional statistical standard unit area of ​​all levels:

[0134] ;

[0135] like , then the minimum functional statistical standard unit is directly retained as the national land space statistical standard unit of the set level; if , the neighborhood merging mechanism is executed as follows:

[0136] First neighborhood search merge: As the center, perform aggregation operations in its first-order neighborhood and construct the area function:

[0137] Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge:

[0138] ;

[0139] like , the merge is complete; otherwise, it enters the second neighborhood search merge:

[0140] ;

[0141] like , the merge is complete; otherwise, it enters the third neighborhood search merge:

[0142] ;

[0143] like , the merger is completed;

[0144] in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set the area threshold for the first.

[0145] like , continue to merge other units until all units meet the merging conditions or reach the maximum number of merging times, as the national land space statistical standard units of the set level.

[0146] In step S103, based on the obtained set of standard units for national land spatial statistics at each set level, including administrative village / community, township / street, and county / district levels, this step generates standardized geographic information system layers based on these units and constructs a structurally unified attribute table, integrating spatial representation and attribute aggregation. The layer output is closed polygon vector data that meets topological correctness requirements. File formats can include SHP, GeoJSON, or GDB, with each layer corresponding to a spatial level. Regarding attribute aggregation, fields are established for each unit, including a unique number (unit_id), spatial level (level), boundary coordinates (geometry), area (area), boundary source type (source_type), merge record (merge_history), integrity flag (pass_integrity), and merge round (round_merge_level). Some of these fields can be used to track the unit generation process and determine whether it participates in subsequent processing. The final output layers and attribute tables constitute complete data results, which can directly serve the implementation of national land space planning, functional area identification, development boundary control and resource allocation, and have the characteristics of unified boundaries, clear granularity, rich attributes and sustainable updates.

[0147] The method for determining the national land space statistical standard unit using data calculation in the embodiment of the present application integrates and processes multi-source national land space data based on spatial data calculation rules, and constructs a standardized, data-driven minimum functional statistical standard unit division model. It can generate minimum functional statistical standard units with unified spatial granularity and adapt to multi-scale planning goals, significantly improve the spatial support accuracy and analysis application basis of national land space planning implementation, and help to realize the scientific, dynamic and intelligent management of national land space.

[0148] An embodiment of the present application also provides a device for determining standard units of land and space statistics using data calculations.

[0149] Figure 2 This is a module structure diagram of a device for determining a national land space statistical standard unit using data calculation according to an embodiment of the application, such as Figure 2 As shown, an apparatus for determining a standard unit of land space statistics using data calculation according to an embodiment of the application includes:

[0150] The unit initialization module 100 is used to construct a primary patch unit according to multi-source spatial data and optimize the geometric structure of the primary patch unit to form a secondary patch unit;

[0151] The unit preprocessing module 101 is used to perform spatial neighborhood merging optimization processing and integrity constraint verification processing on the secondary patch units in sequence to obtain the minimum functional statistical standard unit;

[0152] The unit division module 102 is used to divide each minimum functional statistical standard unit according to the set level, and perform neighborhood search and merging on the minimum functional statistical standard unit smaller than the corresponding first set area threshold in each set level to determine the national land space statistical standard unit of each set level;

[0153] Neighborhood search merging includes the following steps:

[0154] Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge:

[0155] ;

[0156] like , the merge is complete; otherwise, it enters the second neighborhood search merge:

[0157] ;

[0158] like , the merge is complete; otherwise, it enters the third neighborhood search merge:

[0159] ;

[0160] like , the merger is completed;

[0161] in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set the area threshold for the first.

[0162] The device for determining national land space statistical standard units using data calculation in the embodiment of the present application integrates and processes multi-source national land space data based on spatial data calculation rules, and constructs a standardized, data-driven minimum functional statistical standard unit division model. It can generate minimum functional statistical standard units with unified spatial granularity and adapt to multi-scale planning goals, significantly improve the spatial support accuracy and analysis application basis of national land space planning implementation, and help to realize scientific, dynamic and intelligent national land space governance.

[0163] At least one embodiment of the present application further provides a data control device. Figure 3 A schematic block diagram of a data control device provided in at least one embodiment of the present application. Figure 3 As shown, the data control device 20 may include one or more memories 200 and one or more processors 201. The memories 200 are used to non-transiently store computer-executable instructions; the processor 201 is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor 201, the processor 201 may execute one or more steps in the method for determining the standard unit of national land and spatial statistics using data calculation according to any embodiment of the present application.

[0164] The specific implementation and related explanation of each step of the method for determining the standard unit of national land space statistics by using data calculation can be found in the relevant content of the embodiment of the method for determining the standard unit of national land space statistics by using data calculation, which will not be repeated here. Figure 3 The components of the data control device 20 shown are merely exemplary and non-limiting. The data control device 20 may further include other components according to actual application requirements.

[0165] In one embodiment, the processor 201 and the memory 200 can communicate with each other directly or indirectly. For example, the processor 201 and the memory 200 can communicate via a network connection. The network can include a wireless network, a wired network, and / or any combination of wireless and wired networks. This application does not limit the type and function of the network. For another example, the processor 201 and the memory 200 can also communicate via a bus connection. The bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industrial Standard Architecture (EISA) bus. For example, the processor 201 and the memory 200 can be located on a remote data server (cloud) or a distributed energy system (local), or on a client (e.g., a mobile device such as a mobile phone). For example, the processor 201 can be a device with data processing capabilities and / or instruction execution capabilities, such as a central processing unit (CPU), a tensor processing unit (TPU), or a graphics processing unit (GPU), and can control other components in the data control device 20 to perform the desired functions. The central processing unit (CPU) can be an X86 or ARM architecture, etc.

[0166] In one embodiment, the memory 200 may include any combination of one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Non-volatile memory may include, for example, read-only memory (ROM), a hard disk, an erasable programmable read-only memory (EPROM), a portable compact disk read-only memory (CD-ROM), a USB memory, a flash memory, etc. One or more computer-executable instructions may be stored on the computer-readable storage medium, and the processor 201 may execute the computer-executable instructions to implement various functions of the data control device 20. Various applications and various data, as well as various data used and / or generated by the applications, may also be stored in the memory 200.

[0167] It should be noted that the data control device 20 can achieve technical effects similar to the aforementioned method for determining the standard unit of land and space statistics using data calculation, and the repeated parts will not be repeated.

[0168] At least one embodiment of the present application also provides a non-transitory computer-readable storage medium. Figure 4 A schematic diagram of a non-transitory computer-readable storage medium provided for at least one embodiment of the present application. For example, Figure 4As shown, one or more computer-executable instructions 301 may be non-transitory stored on a non-transitory computer-readable storage medium 30. For example, when the computer-executable instructions 301 are executed by a computer, the computer may execute one or more steps in the method for determining a standard unit for national land and spatial statistics using data calculation according to any embodiment of the present application.

[0169] In one embodiment, the non-transitory computer-readable storage medium 30 may be applied to the above-mentioned data control device 20 , for example, it may be the memory 200 in the data control device 20 .

[0170] In one embodiment, the description of the non-transitory computer-readable storage medium 30 may refer to the description of the memory 200 in the embodiment of the data control device 20 , and the repeated parts will be omitted.

[0171] It should be noted that the memory 200 stores different non-transient computer-executable instructions, and the data control device 20 corresponds to a firmware upgrade device. When the computer-executable instructions are executed by the processor 201, the processor 201 can execute one or more steps in the method for determining the standard unit of land and space statistics using data calculation according to any embodiment of the present application.

[0172] Regarding this application, the following points need to be explained:

[0173] (1) The drawings of the embodiments of this application only relate to the structures related to the embodiments of this application. Other structures can refer to the general design.

[0174] (2) For the sake of clarity, the thickness and size of layers or structures in the drawings used to describe the embodiments of the present invention are exaggerated. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element can be "directly on" or "under" the other element, or intervening elements may be present.

[0175] (3) Unless there is a conflict, the embodiments of this application and the features therein may be combined to form new embodiments. The above are only specific implementation methods of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be based on the scope of protection of the claims.

[0176] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0177] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A method for determining the standard unit of national land space statistics using data calculation, characterized in that: Including steps: Constructing a primary patch unit according to multi-source spatial data, and optimizing the geometric structure of the primary patch unit to form a secondary patch unit; Sequentially performing spatial neighborhood merging optimization processing and integrity constraint verification processing on the secondary patch units to obtain a minimum functional statistical standard unit; Divide each of the minimum functional statistical standard units according to the set levels, and perform neighborhood search and merging on the minimum functional statistical standard units within each of the set levels that are smaller than the corresponding first set area threshold to determine the national land space statistical standard units of each set level; The neighborhood search merging comprises the following steps: Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge: ； like , the merge is complete; otherwise, it enters the second neighborhood search merge: ； like , the merge is complete; otherwise, it enters the third neighborhood search merge: ； like , the merger is completed; in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set an area threshold for the first; The steps of the integrity constraint verification process are: If the unit is set satisfy , delete the setting unit Medium and Minimum Functional Statistical Standard Unit The intersection part is used as the new minimum functional statistical standard unit; among them, and Display and setting unit Minimum functional statistical standard unit of intersection; For the smallest administrative area boundary , which is expressed as: ;in, represents the minimum functional statistical standard unit, Indicates administrative unit; like and , then the standard unit is counted according to the minimum function The smallest administrative area boundary Perform re-segmentation.

2. The method for determining the standard unit of national land space statistics using data calculation according to claim 1, characterized in that: The process of constructing a primary patch unit based on multi-source spatial data includes the following steps: Acquire multi-source spatial data; wherein the multi-source spatial data includes nature reserve boundary data, watershed boundary data, village and community boundary data, road network data, and land use status data; Performing unified coordinate projection transformation, vector boundary topology correction and format standardization processing on the multi-source spatial data to obtain multi-source processed data; A spatial overlay analysis is performed based on multi-source processed data, and an initial spatial patch is generated using a surface element segmentation operation to form the primary patch unit.

3. The method for determining the standard unit of national land space statistics using data calculation according to claim 1, characterized in that: The process of optimizing the geometric structure of the primary plaque unit to form a secondary plaque unit comprises the steps of: The first-level patch units with a perimeter-to-area ratio less than the set ratio are merged with the adjacent patches; Neighbor merging is performed on the first-level patch units whose area is smaller than the area control threshold.

4. The method for determining the standard unit of national land space statistics using data calculation according to claim 1, characterized in that: The process of performing spatial neighborhood merging optimization processing on the secondary patch unit comprises the steps of: A spatial neighborhood merging optimization process is performed on the secondary patch units whose area is smaller than the second set area threshold.

5. The method for determining the standard unit of national land space statistics using data calculation according to claim 1, characterized in that: The first set area threshold corresponds to a set level, and the first set area threshold is the lower quartile of all minimum functional statistical standard units in the corresponding set level.

6. The method for determining the standard unit of national land space statistics using data calculation according to any one of claims 1 to 5, characterized in that: Also includes the steps: Construct standard geographic information system layers and attribute tables based on the national land space statistics standard units at each set level.

7. A device for determining standard units of national land space statistics using data calculation, characterized in that: include: A unit initialization module is used to construct a primary patch unit according to multi-source spatial data, and optimize the geometric structure of the primary patch unit to form a secondary patch unit; A unit preprocessing module is used to sequentially perform spatial neighborhood merging optimization processing and integrity constraint verification processing on the secondary patch units to obtain a minimum functional statistical standard unit; A unit division module is used to divide each of the minimum functional statistical standard units according to the set level, and perform neighborhood search and merging on the minimum functional statistical standard units within each set level that are smaller than the corresponding first set area threshold to determine the national land space statistical standard units of each set level; The neighborhood search merging comprises the following steps: Counting standard units with minimum functionality As the center, enter the first neighborhood search and merge: ； like , the merge is complete; otherwise, it enters the second neighborhood search merge: ； like , the merge is complete; otherwise, it enters the third neighborhood search merge: ； like , the merger is completed; in, Represents adjacent The set of order neighborhood units, =1,2,3; express Neighborhood unit area; for with it Order neighborhood unit The sum of the areas of =1,2,3; Set an area threshold for the first; The steps of the integrity constraint verification process are: If the unit is set satisfy , delete the setting unit Medium and Minimum Functional Statistical Standard Unit The intersection part is used as the new minimum functional statistical standard unit; among them, and Display and setting unit Minimum functional statistical standard unit of intersection; For the smallest administrative area boundary , which is expressed as: ;in, represents the minimum functional statistical standard unit, Indicates administrative unit; like and , then the standard unit is counted according to the minimum function The smallest administrative area boundary Perform re-segmentation.

8. A non-transitory computer-readable storage medium, characterized in that The non-transitory computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, implement the method for determining the standard unit of land and space statistics using data calculation as described in any one of claims 1 to 6.

9. A data control device, characterized in that: include: one or more memories that non-transitorily store computer-executable instructions; One or more processors are configured to run computer-executable instructions, wherein the computer-executable instructions, when run by one or more processors, implement the method for determining the standard unit of land and space statistics using data calculation as described in any one of claims 1 to 6.

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