Construction method, device and equipment of airport pavement transition plate model

Abstract

The invention relates to a method, a device and equipment for constructing an airport pavement transition plate model, and belongs to the technical field of airport model construction.According to the method, the device and the equipment, an original transition plate is partitioned, a bottom face contour is generated based on accurate intersection point calculation and thickness data, and a designed terrain is directly used as a top face; errors possibly caused by manual adjustment are fundamentally avoided, it is guaranteed that the transition plate model and the adjacent structure can be smoothly and accurately connected, and the model quality is guaranteed. According to the method, full-automatic generation from basic data to a final model is realized through a data-driven calculation process, manual intervention and adjustment are not needed, the modeling period is greatly shortened, and the modeling efficiency is remarkably improved; besides, the uncertainty of manual operation is eliminated through the automatic process, and the consistency and accuracy of results can be guaranteed especially when special-shaped or complex transition plates are processed, so that the problem of repeated reworking caused by model errors is greatly solved, and the modeling reliability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of airport model construction, and in particular relates to a method, device and equipment for constructing an airport pavement transition plate model. Background Art

[0002] During the design and construction of airport pavement projects, pavement transition plate modeling is a critical step, directly impacting the pavement's structural stability, construction efficiency, and subsequent maintenance. This process is typically performed using pre-defined software. This software often relies on manual operations or semi-automated processes, resulting in low efficiency and insufficient accuracy.

[0003] For example, Bentley's OpenRoads Designer software supports 3D parametric modeling and 2D drawing generation. When modeling a road transition plate model, Figure 1 As shown, the two sides of the surface layer of the pavement transition plate are of unequal thickness. The existing solution is to first generate the transition plate surface layer grid according to equal thickness, and then rely on manual adjustment of the points on both sides to achieve the effect of unequal thickness. Similarly, the base layer of the pavement transition plate also needs to be processed similarly to achieve the effect of fitting with the bottom of the pavement transition plate surface layer, which is inefficient and lacks accuracy.

[0004] Therefore, how to improve the construction efficiency and accuracy of the pavement transition plate model has become a technical problem that needs to be solved urgently in the existing technology. Summary of the Invention

[0005] The present invention provides a method, device and equipment for constructing an airport pavement transition plate model, so as to solve the technical problems of low efficiency and insufficient precision in constructing pavement transition plate models in the prior art.

[0006] The technical solutions provided by the present invention are as follows: In one aspect, a method for constructing an airport pavement transition plate model comprises: Obtain all pavement structure partitions that have intersections with the target transition plate partition and construct a pavement structure partition set; Determine the intersection of the target transition plate partition and each of the pavement structure partitions, obtain the intersection distance and thickness associated with each intersection, and construct an intersection distance list and an intersection surface thickness list; wherein the intersection distance is the distance from the intersection along the boundary of the target transition plate partition to the starting point of the target transition plate partition, and the thickness is the surface thickness information of the pavement structure partition where the intersection is located; Based on the preset design terrain, the distance list and the intersection surface thickness list, the projection point of any intersection on the design terrain is calculated, and the final point coordinates are obtained by descending based on the surface thickness to generate a set of longitudinal section points; Connecting the set of longitudinal section points in the order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line; Based on the longitudinal section lines of the transition plate partitions, a bottom mesh of the transition plate is generated by a preset mesh generation algorithm; Projecting the vertices of the bottom mesh onto the design terrain to generate a top mesh of the transition plate; The top grid and the bottom grid are stitched together to form a closed entity, thereby generating a surface layer model of the airport pavement unequal thickness transition plate as an airport pavement transition plate model.

[0007] Optionally, constructing the intersection distance list and the intersection surface thickness list includes: Traversing the pavement structure partition set, obtaining the intersection distance and thickness of each intersection of the pavement structure partition, and constructing an intersection distance list and an intersection surface thickness list; The intersection point distance list is arranged in ascending order based on the intersection point distance to update the intersection point distance list.

[0008] Optionally, the calculating of the bottom coordinates of any intersection in three-dimensional space based on the preset design terrain, the distance list, and the intersection surface thickness list, thereby generating a set of longitudinal section points, includes: Projecting the intersection points in the distance list onto the designed terrain one by one to obtain the terrain elevations of the intersection points in the designed terrain; The thickness corresponding to any intersection distance is obtained from the intersection surface layer thickness list, and the thickness corresponding to the intersection is subtracted from the terrain elevation to obtain the bottom coordinates to generate a set of longitudinal section points.

[0009] Optionally, generating the bottom mesh of the transition plate based on the longitudinal section line of the transition plate partition by using a preset mesh generation algorithm includes: According to the transition plate partition longitudinal section line, a transition plate longitudinal section line sampling point set is constructed; The obtained sampling point set is used to generate the bottom mesh of the transition plate according to the Delaunay triangulation algorithm.

[0010] Optionally, constructing a set of sampling points of the longitudinal section line of the transition plate according to the longitudinal section of the transition plate partition includes: Sampling is performed along the longitudinal section line of the transition plate partition according to a preset step length to obtain a group of bottom sampling points, which constitute a sampling point set of the longitudinal section line of the transition plate.

[0011] Optionally, projecting the vertices of the bottom mesh onto the designed terrain to generate a top mesh of the transition plate includes: Traversing the sampling point set, projecting each sampling point onto the designed terrain to obtain a projection point set; The obtained projection point set is used to generate the transition plate top mesh according to the Delaunay triangulation algorithm.

[0012] Optionally, also include: The vertices of the bottom grid are offset downward in the vertical direction according to the preset base thickness to form a base bottom point set; A base layer model of a transition plate is generated and stitched based on the base layer grid and the base layer bottom point set.

[0013] Optionally, the boundary of the target transition plate partition includes at least one of a straight line segment and a curved line segment.

[0014] In another aspect, a device for constructing an airport pavement transition plate model comprises: An acquisition module is used to acquire all pavement structure partitions that have intersections with the target transition plate partition and construct a pavement structure partition set; a construction module, configured to determine the intersection of the target transition plate partition and each of the pavement structure partitions, obtain the intersection distance and thickness associated with each intersection, and construct a list of intersection distances and a list of intersection surface thicknesses; wherein the intersection distance is the distance from the intersection along the boundary of the target transition plate partition to the starting point of the target transition plate partition, and the thickness is the surface thickness information of the pavement structure partition where the intersection is located; A generating module, configured to calculate the bottom coordinates of any intersection in three-dimensional space based on a preset design terrain, the distance list, and the intersection surface thickness list, thereby generating a set of longitudinal section points; Connecting the set of longitudinal section points in the order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line; Based on the longitudinal section lines of the transition plate partitions, a bottom mesh of the transition plate is generated by a preset mesh generation algorithm; Projecting the vertices of the bottom mesh onto the design terrain to generate a top mesh of the transition plate; The top grid and the bottom grid are stitched together to form a closed entity, thereby generating a surface layer model of the airport pavement unequal thickness transition plate as an airport pavement transition plate model.

[0015] In yet another aspect, a device for constructing an airport pavement transition plate model includes: a processor, and a memory connected to the processor; The memory is used to store a computer program, and the computer program is at least used to execute any one of the above methods; The processor is configured to call and execute the computer program in the memory.

[0016] The beneficial effects of the present invention are: The technical solution provided by the embodiment of the present invention generates the bottom surface contour based on the original transition plate partitioning, precise intersection calculation and thickness data, and directly uses the designed terrain as the top surface, fundamentally avoiding the errors that may be introduced by manual adjustment, ensuring that the transition plate model and adjacent structures can be smoothly and accurately connected, and guaranteeing the quality of the model. This application realizes the fully automated generation from basic data to the final model through a data-driven calculation process, without the need for manual intervention and adjustment, greatly shortening the modeling cycle and significantly improving modeling efficiency. In addition, the automated process eliminates the uncertainty of manual operation, especially when dealing with special-shaped or complex transition plates, and can ensure the consistency and accuracy of the results, thereby greatly reducing the problem of repeated rework caused by model errors and improving the reliability of modeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a transition plate model provided by the present invention; Figure 2 A schematic flow chart of a method for constructing an airport pavement transition plate model provided by an embodiment of the present invention; Figure 3 A schematic diagram of a transition plate partition and related pavement structure partition provided in an embodiment of the present invention; Figure 4 A schematic diagram of a longitudinal section of a transition plate provided by an embodiment of the present invention; Figure 5 This is a rendering of the bottom grid of a transition plate provided by an embodiment of the present invention; Figure 6 A rendering of the top grid of a transition plate provided by an embodiment of the present invention; Figure 7 A schematic diagram of a bottom portion and a bottom grid of a transition plate provided in an embodiment of the present invention; Figure 8 This is a rendering of a transition plate surface layer model generated according to an embodiment of the present invention; Figure 9 An overall rendering of a transition plate model provided by an embodiment of the present invention; Figure 10A schematic structural diagram of a device for constructing an airport pavement transition plate model provided by an embodiment of the present invention; Figure 11 A schematic structural diagram of a device for constructing an airport pavement transition plate model provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0020] As described in the background art, during the modeling process of the pavement transition plate, it is usually constructed through a set software; during the use of the software, it usually relies on manual operation or semi-automatic processes, which has the problems of low efficiency and insufficient accuracy.

[0021] For example, Bentley's OpenRoads Designer software supports 3D parametric modeling and 2D drawing generation. When modeling a road transition plate model, Figure 1 As shown in the figure, the colored area is the pavement transition plate. As can be seen from the figure, the two sides of the pavement transition plate surface layer are of unequal thickness. The existing solution is to first generate the transition plate surface layer grid according to equal thickness, and then rely on manual adjustment of the points on both sides to achieve the effect of unequal thickness. Similarly, the base layer of the pavement transition plate also needs to be processed similarly to achieve the effect of fitting with the bottom of the pavement transition plate surface layer, which is inefficient and lacks accuracy.

[0022] Therefore, how to improve the construction efficiency and accuracy of the pavement transition plate model has become a technical problem that needs to be solved urgently in the existing technology.

[0023] In order to at least solve the technical problem raised in the present invention, the embodiments of the present invention provide a method, device and equipment for constructing an airport pavement transition plate model to achieve efficiency and accuracy in constructing the pavement transition plate model.

[0024] Figure 2 A schematic diagram of a method for constructing an airport pavement transition plate model provided by an embodiment of the present invention is shown in FIG. Figure 2 As shown, the method provided by the embodiment of the present invention may include the following steps: S11. Acquire all pavement structure partitions that have intersections with the target transition plate partition, and construct a pavement structure partition set.

[0025] In this application, the scenario is a 3D modeling of an airport pavement project. In the pre-set software, the original transition plate partitions are set. The transition plate partition to be modeled is selected as the target transition plate partition. All pavement structure partitions that intersect with the target transition plate partition are obtained to construct a pavement structure partition set.

[0026] Figure 3 A schematic diagram of a transition plate partition and related pavement structure partition provided by an embodiment of the present invention, see Figure 3 The green area is the transition plate partition, and the gray area is the pavement structure partition. The transition plate partition can be defined as the target transition plate partition, and all pavement structure partitions that have intersections with it constitute the pavement structure partition.

[0027] S12. Determine the intersection of the target transition plate partition and each of the pavement structure partitions, obtain the intersection distance and thickness associated with each intersection, and construct an intersection distance list and an intersection surface thickness list; wherein the intersection distance is the distance from the intersection along the boundary of the target transition plate partition to the starting point of the target transition plate partition, and the thickness is the surface thickness information of the pavement structure partition where the intersection is located.

[0028] exist Figure 3 In the figure, the zero point is the starting point of the target transition plate partition, and the overall definition direction of the target transition plate is from the starting point to the left, and returns to the starting point (i.e., the end point) after one circle.

[0029] In some embodiments, constructing the intersection distance list and the intersection surface thickness list includes: Traversing the pavement structure partition set, obtaining the intersection distance and thickness of each intersection of the pavement structure partition, and constructing an intersection distance list and an intersection surface thickness list; The intersection point distance list is arranged in ascending order based on the intersection point distance to update the intersection point distance list.

[0030] Table 1 is a list of intersection distances provided by an embodiment of the present invention.

[0031] In Table 1, each row represents the intersection distance of each intersection point.

[0032] Table 2 is a list of intersection surface thicknesses provided by an embodiment of the present invention.

[0033] In Table 2, each row shows the surface thickness corresponding to each intersection distance.

[0034] Table 3 is a sorted intersection distance list provided by an embodiment of the present invention.

[0035] In Table 3, each row represents the intersection distance of each intersection point in ascending order of intersection distance.

[0036] For example, two lists are established based on the pavement structure partition related to the transition plate partition. List 1 contains two fields: one is the distance from the intersection of the pavement structure partition and the transition plate partition to the starting point of the transition plate partition (intersection distance), and the other is the thickness of the pavement structure partition where the intersection is located.

[0037] List 2 contains two fields, one is the intersection distance, and the other is the intersection point between the pavement structure partition and the transition plate partition.

[0038] Traverse each pavement structure partition, take the intersection distance and thickness information of each pavement structure partition and the transition plate partition, record them in List 1, and record the intersection distance and intersection information of each pavement structure partition and the transition plate partition in List 2.

[0039] S13. Based on the preset design terrain, the distance list and the intersection surface thickness list, calculate the projection coordinates of any intersection onto the design terrain, descend based on the surface thickness to obtain the final coordinates, thereby generating a set of longitudinal section points.

[0040] Based on the preset design terrain, the distance list and the intersection surface thickness list, the bottom coordinates of any intersection in three-dimensional space are calculated to generate a set of longitudinal section points.

[0041] The designed terrain can be imported or set by the user.

[0042] For example, you can create a local longitudinal section line list, traverse the intersection distance list, and generate longitudinal sections between each two. The principle is to take out the surface thickness corresponding to the intersection distance from the surface thickness list, and then interpolate the elevation of the intersection in the designed terrain and then lower it by one surface thickness to obtain the longitudinal section point (intersection distance, elevation), create a single-segment longitudinal section, and record it in the local longitudinal section list.

[0043] In some embodiments, the calculating of the bottom coordinates of any intersection in three-dimensional space based on the preset design terrain, the distance list, and the intersection surface thickness list, thereby generating a set of longitudinal section points, includes: Projecting the intersection points in the distance list onto the designed terrain one by one to obtain the terrain elevations of the intersection points in the designed terrain; The thickness corresponding to any intersection distance is obtained from the intersection surface layer thickness list, and the thickness corresponding to the intersection is subtracted from the terrain elevation to obtain the bottom coordinates to generate a set of longitudinal section points.

[0044] For example, the corresponding intersection point in List 2 can be taken out according to the intersection distance, and the intersection point can be projected onto the terrain to obtain a three-dimensional point with a Z value (elevation). The thickness corresponding to the intersection distance can be taken out, and the Z value can be reduced by the thickness to obtain the final longitudinal section point. Then, the two longitudinal section points can be connected to obtain the longitudinal section line, and so on.

[0045] S14. Connect the set of longitudinal section points in the order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line.

[0046] S15. Based on the longitudinal section lines of the transition plate partitions, generate a bottom mesh of the transition plate using a preset mesh generation algorithm.

[0047] For example, the local longitudinal section list is traversed, and the local longitudinal section lines are connected end to end in sequence to obtain the final transition plate partition longitudinal section.

[0048] Figure 4 A schematic diagram of a longitudinal section of a transition plate partition provided in an embodiment of the present invention.

[0049] In some embodiments, generating the bottom mesh of the transition plate based on the longitudinal section line of the transition plate partition by using a preset mesh generation algorithm includes: According to the transition plate partition longitudinal section line, a transition plate longitudinal section line sampling point set is constructed; The obtained sampling point set is used to generate the bottom mesh of the transition plate according to the Delaunay triangulation algorithm.

[0050] Figure 5 This is a rendering of the bottom grid of a transition plate provided by an embodiment of the present invention.

[0051] In some embodiments, constructing a set of sampling points of the longitudinal section line of the transition plate according to the longitudinal section of the transition plate partitions includes: Sampling is performed along the longitudinal section line of the transition plate partition according to a preset step length to obtain a group of bottom sampling points, which constitute a sampling point set of the longitudinal section line of the transition plate.

[0052] See Figure 5 , extract the longitudinal section line of the transition plate, establish a sampling point set of the longitudinal section line of the transition plate, sample the longitudinal section line of the transition plate at a certain step length (here taking 0.5m as an example) to obtain a sampling point set, and use the obtained sampling point set according to the Delaunay triangulation algorithm to generate the transition plate bottom grid.

[0053] S16 , projecting the vertices of the bottom mesh onto the designed terrain to generate a top mesh of the transition plate.

[0054] In some embodiments, projecting the vertices of the bottom mesh onto the designed terrain to generate the top mesh of the transition plate includes: Traversing the sampling point set, projecting each sampling point onto the designed terrain to obtain a projection point set; The obtained projection point set is used to generate the transition plate top mesh according to the Delaunay triangulation algorithm.

[0055] For example, Figure 6 This is a grid effect diagram of the top of the transition plate provided by an embodiment of the present invention. Establish a projection point set, traverse the sampling point set, project each sampling point to the design terrain, obtain a projection point set, and use the obtained projection point set according to the Delaunay triangulation algorithm to generate the grid effect of the top of the transition plate. Figure 5 shown.

[0056] S17. Stitching the top grid and the bottom grid to form a closed entity, thereby generating a surface layer model of the airport pavement transition plate of unequal thickness as an airport pavement transition plate model.

[0057] For example, Figure 7 A schematic diagram of a bottom portion and a bottom grid of a transition plate provided in an embodiment of the present invention; Figure 8 This is a rendering of a transition plate surface model generated according to an embodiment of the present invention.

[0058] For example, after filling the sides between the two meshes and stitching them into a whole mesh, we can get the transition plate surface model. Figure 7-8 .

[0059] In some embodiments, further comprising: The vertices of the bottom grid are offset downward in the vertical direction according to the preset base thickness to form a base bottom point set; A base layer model of a transition plate is generated and stitched based on the base layer grid and the base layer bottom point set.

[0060] For example, a transition plate base layer can also be formulated according to needs. Taking one layer as an example, the obtained sampling point set is lowered as a whole by the thickness of a base layer to obtain the point set at the bottom of the base layer. The above-mentioned method of generating grids is used according to the two sets of point sets to generate the top and bottom mesh surfaces of the base layer respectively, and then the side surfaces between the two surfaces are supplemented. Finally, the base layer mesh body is obtained by stitching. If it is multi-layer, the method is the same, and so on. The overall effect is as follows Figure 9 As shown; Figure 9 This is an overall rendering of a transition plate model provided by an embodiment of the present invention.

[0061] In some embodiments, the boundary of the target transition plate partition includes at least one of a straight line segment and a curved line segment.

[0062] It is worth noting that Delaunay triangulation is an algorithm that connects discrete point sets into a triangular mesh. Its core feature is to maximize the minimum internal angle and avoid generating "long and narrow triangles" (that is, satisfying the "empty circle property"). Delaunay triangulation is often used to generate meshes and will not be described in detail in this embodiment.

[0063] It is understandable that the technical solution provided by the embodiment of the present invention, through the original transition plate partitioning, generates the bottom surface contour based on precise intersection calculation and thickness data, and directly uses the designed terrain as the top surface, fundamentally avoiding the errors that may be introduced by manual adjustment, ensuring that the transition plate model and adjacent structures can be smoothly and accurately connected, and guaranteeing the quality of the model. This application realizes the fully automated generation from basic data to the final model through a data-driven calculation process, without the need for manual intervention and adjustment, greatly shortening the modeling cycle and significantly improving modeling efficiency. In addition, the automated process eliminates the uncertainty of human operation, especially when dealing with special-shaped or complex transition plates, and can ensure the consistency and accuracy of the results, thereby greatly reducing the problem of repeated rework caused by model errors and improving the reliability of modeling.

[0064] Based on a general inventive concept, an embodiment of the present invention further provides a device for constructing an airport pavement transition plate model.

[0065] Figure 10 FIG. 1 is a schematic diagram of a device for constructing an airport pavement transition plate model according to an embodiment of the present invention, as shown in FIG. Figure 10 As shown, the device provided by the embodiment of the present invention may include the following structure: An acquisition module 101 is used to acquire all pavement structure partitions that have intersections with a target transition plate partition and construct a pavement structure partition set; A construction module 102 is configured to determine the intersection of the target transition plate partition and each of the pavement structure partitions, obtain the intersection distance and thickness associated with each intersection, and construct a list of intersection distances and a list of intersection surface thicknesses; wherein the intersection distance is the distance from the intersection along the boundary of the target transition plate partition to the starting point of the target transition plate partition, and the thickness is the surface thickness information of the pavement structure partition where the intersection is located; A generating module 103 is configured to calculate the bottom coordinates of any intersection in three-dimensional space based on a preset design terrain, the distance list, and the intersection surface thickness list, thereby generating a set of longitudinal section points; Connecting the set of longitudinal section points in the order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line; Based on the longitudinal section lines of the transition plate partitions, a bottom mesh of the transition plate is generated by a preset mesh generation algorithm; Projecting the vertices of the bottom mesh onto the design terrain to generate a top mesh of the transition plate; The top grid and the bottom grid are stitched together to form a closed entity, thereby generating a surface layer model of the airport pavement unequal thickness transition plate as an airport pavement transition plate model.

[0066] Optionally, a construction module is specifically configured to traverse the pavement structure partition set, obtain the intersection distance and thickness of each intersection of the pavement structure partition, and construct an intersection distance list and an intersection surface thickness list; The intersection point distance list is arranged in ascending order based on the intersection point distance to update the intersection point distance list.

[0067] Optionally, a generating module is specifically configured to project the intersection points in the distance list onto the designed terrain one by one to obtain the terrain elevation of the intersection points in the designed terrain; The thickness corresponding to any intersection distance is obtained from the intersection surface layer thickness list, and the thickness corresponding to the intersection is subtracted from the terrain elevation to obtain the bottom coordinates to generate a set of longitudinal section points.

[0068] Optionally, a generation module is specifically used to construct a set of sampling points of the transition plate longitudinal section line according to the transition plate partition longitudinal section line; The obtained sampling point set is used to generate the bottom mesh of the transition plate according to the Delaunay triangulation algorithm.

[0069] Optionally, a generation module is specifically used to perform sampling along the longitudinal section line of the transition plate partition according to a preset step size to obtain a group of bottom sampling points to constitute a sampling point set of the longitudinal section line of the transition plate.

[0070] Optionally, a generation module is specifically configured to traverse the sampling point set and project each sampling point onto the designed terrain to obtain a projection point set; The obtained projection point set is used to generate the transition plate top mesh according to the Delaunay triangulation algorithm; The vertices of the bottom grid are offset downward in the vertical direction according to the preset base thickness to form a base bottom point set; A base layer model of a transition plate is generated and stitched based on the base layer grid and the base layer bottom point set.

[0071] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0072] The technical solution provided by the embodiment of the present invention generates the bottom surface contour based on the original transition plate partitioning, precise intersection calculation and thickness data, and directly uses the designed terrain as the top surface, fundamentally avoiding the errors that may be introduced by manual adjustment, ensuring that the transition plate model and adjacent structures can be smoothly and accurately connected, and guaranteeing the quality of the model. This application realizes the fully automated generation from basic data to the final model through a data-driven calculation process, without the need for manual intervention and adjustment, greatly shortening the modeling cycle and significantly improving modeling efficiency. In addition, the automated process eliminates the uncertainty of manual operation, especially when dealing with special-shaped or complex transition plates, and can ensure the consistency and accuracy of the results, thereby greatly reducing the problem of repeated rework caused by model errors and improving the reliability of modeling.

[0073] Based on a general inventive concept, an embodiment of the present invention further provides a device for constructing an airport pavement transition plate model.

[0074] Figure 11 For a schematic diagram of a device for constructing an airport pavement transition plate model provided by an embodiment of the present invention, please refer to Figure 11 An embodiment of the present invention provides a device for constructing an airport pavement transition plate model, including: a processor 31, and a memory 32 connected to the processor.

[0075] The memory 32 is used to store a computer program, which is used at least for the method of constructing the airport pavement transition plate model described in any one of the above embodiments; The processor 31 is used to call and execute computer programs in the memory.

[0076] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

[0077] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0078] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is at least two.

[0079] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0080] It should be understood that various components of the present invention may be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof may be used: a discrete logic circuit having logic gate circuits for implementing logic functions on data signals, an application-specific integrated circuit having suitable combinational logic gate circuits, a programmable gate array (PGA), a field-programmable gate array (FPGA), etc.

[0081] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0082] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0083] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0084] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0085] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A method for constructing an airport pavement transition plate model, characterized in that: include: Obtain all pavement structure partitions that have intersections with the target transition plate partition and construct a pavement structure partition set; Determine the intersection of the target transition plate partition and each of the pavement structure partitions, obtain the intersection distance and thickness associated with each intersection, and construct an intersection distance list and an intersection surface thickness list; wherein the intersection distance is the distance from the intersection along the boundary of the target transition plate partition to the starting point of the target transition plate partition, and the thickness is the surface thickness information of the pavement structure partition where the intersection is located; Based on the preset design terrain, the distance list and the intersection surface thickness list, the projection coordinates of any intersection onto the design terrain are calculated, and the final coordinates are obtained by descending based on the surface thickness, thereby generating a set of longitudinal section points; Connecting the set of longitudinal section points in the order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line; Based on the longitudinal section lines of the transition plate partitions, a bottom mesh of the transition plate is generated by a preset mesh generation algorithm; Projecting the vertices of the bottom mesh onto the design terrain to generate a top mesh of the transition plate; The top grid and the bottom grid are stitched together to form a closed entity, thereby generating a surface layer model of the airport pavement unequal thickness transition plate as an airport pavement transition plate model.

2. The method according to claim 1, characterized in that The construction of the intersection distance list and the intersection surface thickness list includes: Traversing the pavement structure partition set, obtaining the intersection distance and thickness of each intersection of the pavement structure partition, and constructing an intersection distance list and an intersection surface thickness list; The intersection point distance list is arranged in ascending order based on the intersection point distance to update the intersection point distance list.

3. The method according to claim 2, characterized in that The calculation of the bottom coordinates of any intersection in three-dimensional space based on the preset design terrain, the distance list, and the intersection surface thickness list, thereby generating a set of longitudinal section points, includes: Projecting the intersection points in the distance list onto the designed terrain one by one to obtain the terrain elevations of the intersection points in the designed terrain; The thickness corresponding to any intersection distance is obtained from the intersection surface layer thickness list, and the thickness corresponding to the intersection is subtracted from the terrain elevation to obtain the bottom coordinates to generate a set of longitudinal section points.

4. The method according to claim 1, wherein The method of generating a bottom mesh of the transition plate based on the longitudinal section line of the transition plate partition by using a preset mesh generation algorithm includes: According to the transition plate partition longitudinal section line, a transition plate longitudinal section line sampling point set is constructed; The obtained sampling point set is used to generate the bottom mesh of the transition plate according to the Delaunay triangulation algorithm.

5. The method according to claim 4, characterized in that The step of constructing a set of sampling points of the longitudinal section line of the transition plate according to the longitudinal section of the transition plate partition comprises: Sampling is performed along the longitudinal section line of the transition plate partition according to a preset step length to obtain a group of bottom sampling points, which constitute a sampling point set of the longitudinal section line of the transition plate.

6. The method according to claim 5, characterized in that The projecting the vertices of the bottom mesh onto the designed terrain to generate the top mesh of the transition plate comprises: Traversing the sampling point set, projecting each sampling point onto the designed terrain to obtain a projection point set; The obtained projection point set is used to generate the transition plate top mesh according to the Delaunay triangulation algorithm.

7. The method according to claim 1, characterized in that Also includes: The vertices of the bottom grid are offset downward in the vertical direction according to the preset base thickness to form a base bottom point set; A base layer model of a transition plate is generated and stitched based on the base layer grid and the base layer bottom point set.

8. The method according to any one of claims 1 to 7, characterized in that: The boundary of the target transition plate partition includes at least one of a straight line segment and a curve segment.

9. A device for constructing an airport pavement transition plate model, characterized in that: include: An acquisition module is used to acquire all pavement structure partitions that have intersections with the target transition plate partition and construct a pavement structure partition set; a construction module, configured to determine the intersection of the target transition plate partition and each of the pavement structure partitions, obtain the intersection distance and thickness associated with each intersection, and construct a list of intersection distances and a list of intersection surface thicknesses; wherein the intersection distance is the distance from the intersection along the boundary of the target transition plate partition to the starting point of the target transition plate partition, and the thickness is the surface thickness information of the pavement structure partition where the intersection is located; A generating module, configured to calculate the bottom coordinates of any intersection in three-dimensional space based on a preset design terrain, the distance list, and the intersection surface thickness list, thereby generating a set of longitudinal section points; Connecting the set of longitudinal section points in the order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line; Based on the longitudinal section lines of the transition plate partitions, a bottom mesh of the transition plate is generated by a preset mesh generation algorithm; Projecting the vertices of the bottom mesh onto the design terrain to generate a top mesh of the transition plate; The top grid and the bottom grid are stitched together to form a closed entity, thereby generating a surface layer model of the airport pavement unequal thickness transition plate as an airport pavement transition plate model.

10. A device for constructing an airport pavement transition plate model, characterized in that: include: a processor, and a memory connected to the processor; The memory is used to store a computer program, and the computer program is used to at least execute the method according to any one of claims 1 to 8; The processor is configured to call and execute the computer program in the memory.

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