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

Abstract

The present application relates to a kind of airport pavement transition plate model construction method, device and equipment, belong to airport model construction technical field, this method, device and equipment, through original transition plate partition, based on the intersection calculation of precision and thickness data to generate bottom profile, directly utilize design terrain as top surface, fundamentally avoid the error that human adjustment can introduce, ensure that transition plate model and adjacent structure can be smoothly, accurately linked, guarantee model quality.The present application is realized from basic data to final model by the calculation process of data driving, realizes full automation generation, without manual intervention adjustment, greatly shorten the modeling cycle, significantly improve modeling efficiency;In addition, the uncertainty of human operation is eliminated in the automatic process, especially when processing special-shaped or complex transition plate, the consistency and accuracy of result can be guaranteed, so that the repeated rework problem caused by model error is greatly reduced, and the reliability of modeling is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of airport model construction, and particularly relates to a method, device and equipment for constructing an airport pavement transition plate model. BACKGROUND

[0002] In the design and construction of airport pavement engineering, pavement transition plate modeling is a key link, which directly affects the structural stability of the pavement, construction efficiency and post-maintenance. In the pavement transition plate modeling process, the modeling is usually constructed by using a set software. In the software use process, manual operation or semi-automatic process is usually relied on, and there are problems of low efficiency and insufficient precision.

[0003] For example, taking the Bentley OpenRoads Designer software as an example, it supports three-dimensional parametric modeling and two-dimensional drawing generation. When modeling the pavement transition plate model, as shown in the drawing, the surface layers on both sides of the pavement transition plate are of different thicknesses. The existing scheme is to first generate a transition plate surface layer grid according to the equal thickness, and then manually adjust the points on both sides to achieve the effect of different thicknesses. Similarly, the base layer of the pavement transition plate also needs to be processed in a similar manner to achieve the effect of being attached to the bottom of the pavement transition plate surface layer. The efficiency is low and the precision is insufficient. Figure 1

[0004] Therefore, how to improve the construction efficiency and precision of the pavement transition plate model has become a technical problem to be solved in the prior art. SUMMARY

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

[0006] The technical scheme provided by the application is as follows:

[0007] On the one hand, a method for constructing an airport pavement transition plate model comprises the following steps:

[0008] Obtaining all pavement structure partitions having intersection points with a target transition plate partition, and constructing a pavement structure partition set;

[0009] Determining the intersection points of the target transition plate partition and each pavement structure partition, and obtaining the intersection point distance and thickness associated with each intersection point, to construct an intersection point distance list and an intersection surface layer thickness list; wherein the intersection point distance is the distance from the boundary of the target transition plate partition to the starting point of the target transition plate partition along the boundary, and the thickness is the surface layer thickness information of the pavement structure partition where the intersection point is located;

[0010] ​Based on the preset design terrain, the distance list and the intersection surface layer thickness list, a projection point of any intersection on the design terrain is calculated, the final point coordinates are obtained by descending based on the surface layer thickness, and a set of longitudinal section points are generated;

[0011] The set of longitudinal section points are connected in the order of the intersection distance to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line;

[0012] Based on the transition plate partition longitudinal section line, a bottom grid of the transition plate is generated by a preset grid generation algorithm;

[0013] The vertices of the bottom grid are projected onto the design terrain to generate a top grid of the transition plate;

[0014] The top grid and the bottom grid are stitched 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] Optionally, the construction of the intersection distance list and the intersection surface layer thickness list comprises:

[0016] The intersection distance and thickness of the intersection of each pavement structure partition are obtained by traversing the set of pavement structure partitions, and the intersection distance list and the intersection surface layer thickness list are constructed;

[0017] The intersection distance list is arranged in ascending order based on the intersection distance to update the intersection distance list.

[0018] Optionally, the bottom coordinates of any intersection in the three-dimensional space are calculated based on the preset design terrain, the distance list and the intersection surface layer thickness list, thereby generating a set of longitudinal section points, comprising:

[0019] The intersections in the distance list are projected one by one onto the design terrain to obtain the terrain elevation of the intersection in the design terrain;

[0020] The thickness corresponding to any intersection distance is obtained from the intersection surface layer thickness list, and the terrain elevation is subtracted by the thickness corresponding to the intersection to obtain the bottom coordinates, thereby generating a set of longitudinal section points.

[0021] Optionally, the bottom grid of the transition plate is generated based on the transition plate partition longitudinal section line by a preset grid generation algorithm, comprising:

[0022] According to the transition plate partition longitudinal section line, a set of transition plate longitudinal section line sampling points is constructed;

[0023] The obtained set of sampling points is generated into a transition plate bottom grid according to the Delaunay triangulation algorithm.

[0024] Optionally, the constructing a set of sampling points of the transition plate longitudinal section line according to the transition plate partition longitudinal section comprises:

[0025] Sampling along the transition plate partition longitudinal section line at a preset step length to obtain a set of bottom sampling points, which constitutes a set of sampling points of the transition plate longitudinal section line.

[0026] Optionally, the projecting the vertices of the bottom grid to the design terrain to generate a top grid of the transition plate comprises:

[0027] Traversing the set of sampling points to project each sampling point to the design terrain to obtain a set of projection points;

[0028] Generating a top grid of the transition plate according to a Delaunay triangulation algorithm based on the set of projection points.

[0029] Optionally, the method further comprises:

[0030] Offsetting the vertices of the bottom grid downward along a vertical direction by a preset base layer thickness to form a base layer bottom point set;

[0031] Generating and stitching a base layer model of the transition plate based on the bottom grid and the base layer bottom point set.

[0032] Optionally, the boundary of the target transition plate partition comprises at least one of a straight line segment and a curved line segment.

[0033] In another aspect, a device for constructing a transition plate model of an airport pavement comprises:

[0034] An acquisition module configured to acquire all pavement structure partitions having intersection points with a target transition plate partition, and construct a set of pavement structure partitions;

[0035] A construction module configured to determine intersection points of the target transition plate partition and each of the pavement structure partitions, and acquire an intersection distance and a thickness associated with each intersection point, to construct an intersection distance list and an intersection surface layer thickness list; wherein the intersection distance is a distance from a boundary of the target transition plate partition to a starting point of the target transition plate partition along the boundary, and the thickness is surface layer thickness information of the pavement structure partition in which the intersection point is located;

[0036] A generation module configured to calculate a bottom coordinate of any intersection point in a three-dimensional space based on a preset design terrain, the distance list, and the intersection surface layer thickness list, to generate a set of longitudinal section points;

[0037] Connecting the set of longitudinal section points in an order of the intersection distances to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line;

[0038] generating a bottom mesh of the transition plate based on the transition plate partitioned longitudinal section line through a preset mesh generation algorithm;

[0039] projecting vertices of the bottom mesh to the design terrain to generate a top mesh of the transition plate;

[0040] stitching the top mesh and the bottom mesh to form a closed solid, thereby generating a surface layer model of the airport pavement unequal-thickness transition plate as the airport pavement transition plate model.

[0041] In another aspect, a construction device of an airport pavement transition plate model comprises a processor and a memory connected to the processor;

[0042] The memory is configured to store a computer program, and the computer program is configured to execute at least the method described in any of the above aspects;

[0043] The processor is configured to call and execute the computer program in the memory.

[0044] The present application has the following advantages:

[0045] The technical solution provided by the embodiments of the present application generates a bottom surface contour based on accurate intersection calculation and thickness data through original transition plate partitioning, and directly uses the design terrain as a top surface, thereby fundamentally avoiding errors that may be introduced by manual adjustment, ensuring that the transition plate model and adjacent structures can be smoothly and accurately connected, and ensuring the quality of the model. The present application realizes full automation 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 the modeling efficiency. In addition, the automated process eliminates the uncertainty of human operation, especially when dealing with special-shaped or complex transition plates, which 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 DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0047] Figure 1 A transition plate model schematic diagram provided by the present application;

[0048] Figure 2 A flowchart of a construction method of an airport pavement transition plate model provided by the embodiments of the present application;

[0049] Figure 3 A transition plate partition and related pavement structure partition schematic diagram provided for an embodiment of the present application;

[0050] Figure 4 A transition plate partition longitudinal section schematic diagram provided for an embodiment of the present application;

[0051] Figure 5 An effect diagram of a transition plate bottom grid provided for an embodiment of the present application;

[0052] Figure 6 An effect diagram of a transition plate top grid provided for an embodiment of the present application;

[0053] Figure 7 A schematic diagram of a transition plate bottom and bottom grid provided for an embodiment of the present application;

[0054] Figure 8 An effect diagram of a generated transition plate surface layer model provided for an embodiment of the present application;

[0055] Figure 9 An overall effect diagram of a transition plate model provided for an embodiment of the present application;

[0056] Figure 10 A structure schematic diagram of a construction device of an airport pavement transition plate model provided for an embodiment of the present application;

[0057] Figure 11 A structure schematic diagram of a construction device of an airport pavement transition plate model provided for an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0059] As described in the background, in the process of pavement transition plate modeling, it is usually constructed by setting software; in the process of using software, it usually relies on manual operation or semi-automatic process, and there are problems of low efficiency and insufficient precision.

[0060] For example, taking the Bentley OpenRoads Designer software as an example, it supports three-dimensional parametric modeling and two-dimensional drawing generation, and when modeling the pavement transition plate model, for example, the transition plate is usually constructed by setting the software, and the transition plate model is constructed by setting the software. Figure 1As shown, the color area is a pavement transition plate, and as can be seen, the surface layers on both sides of the pavement transition plate are of different thicknesses. The existing scheme is to first generate a transition plate surface layer grid according to equal thickness, and then manually adjust the points on both sides to achieve the effect of different thicknesses. Similarly, the base layer of the pavement transition plate also needs to be processed in a similar manner to achieve the effect of being attached to the bottom of the pavement transition plate surface layer. The efficiency is low and the precision is insufficient.

[0061] Therefore, how to improve the construction efficiency and precision of the pavement transition plate model has become a technical problem to be solved in the prior art.

[0062] In order to at least solve the technical problems proposed in the present application, the embodiments of the present application provide an airport pavement transition plate model construction method, device and equipment to realize the efficiency and precision of the pavement transition plate model construction.

[0063] Figure 2 A flowchart of an airport pavement transition plate model construction method provided by an embodiment of the present application is shown in Figure 2 The method provided by the embodiments of the present application can include the following steps:

[0064] S11, all pavement structure partitions intersecting with a target transition plate partition are acquired to construct a pavement structure partition set.

[0065] In the present application, the assumed scenario can be a three-dimensional modeling of an airport pavement project. In the preset software, there is an original transition plate partition, the transition plate partition to be constructed into a model is selected as a target transition plate partition, and all pavement structure partitions intersecting with the target transition plate partition are acquired to construct a pavement structure partition set.

[0066] Figure 3 A transition plate partition and related pavement structure partition schematic diagram provided by an embodiment of the present application is shown in Figure 3 The green area is a transition plate partition, and the gray area is a pavement structure partition. The transition plate partition can be defined as a target transition plate partition, and all pavement structure partitions intersecting therewith constitute a pavement structure partition.

[0067] S12, the intersection points of the target transition plate partition and each pavement structure partition are determined, and the intersection point distance and thickness associated with each intersection point are acquired to construct an intersection point distance list and an intersection surface layer thickness list. The intersection point distance is the distance from the boundary of the target transition plate partition to the starting point of the target transition plate partition along the boundary, and the thickness is the surface layer thickness information of the pavement structure partition where the intersection point is located.

[0068] In Figure 3In the embodiment, the zero point is the starting point of the target transition plate partition, and the definition direction of the target transition plate as a whole is from the starting point to the left, and back to the starting point (i.e., the end point) after one round.

[0069] In some embodiments, the construction of the intersection distance list and the intersection surface layer thickness list comprises:

[0070] Traversing the pavement structure partition set, the intersection distance and thickness of the intersection point of each pavement structure partition are obtained, and the intersection distance list and the intersection surface layer thickness list are constructed.

[0071] The intersection distance list is arranged in ascending order based on the intersection distance, so as to update the intersection distance list.

[0072] Table 1 is an intersection distance list provided by an embodiment of the present application

[0073]

[0074] In Table 1, each row represents the intersection distance of each intersection point.

[0075] Table 2 is an intersection surface layer thickness list provided by an embodiment of the present application

[0076]

[0077] In Table 2, each row represents the surface layer thickness corresponding to each intersection distance.

[0078] Table 3 is a sorted intersection distance list provided by an embodiment of the present application

[0079]

[0080] In Table 3, each row represents the intersection distance of each intersection point in ascending order of intersection distance.

[0081] For example, according to the pavement structure partition related to the transition plate partition, two lists are established. List 1 contains two fields, one is the distance (intersection distance) from the intersection point of the pavement structure partition and the transition plate partition to the starting point of the transition plate partition, and the other is the thickness of the pavement structure partition where the intersection point is located.

[0082] List 2 contains two fields, one is the intersection distance, and the other is the intersection point of the pavement structure partition and the transition plate partition.

[0083] Traversing each pavement structure partition, the intersection distance and thickness information of each pavement structure partition and the transition plate partition are recorded in List 1, and the intersection distance and intersection information of each pavement structure partition and the transition plate partition are recorded in List 2.

[0084] S13, based on the preset design terrain, the distance list and the intersection surface layer thickness list, calculate the projection coordinates of any intersection on the design terrain, and based on the surface layer thickness, the final coordinates are obtained by descending, thereby generating a set of longitudinal section points.

[0085] Based on the preset design terrain, the distance list and the intersection surface layer thickness list, the bottom coordinates of any intersection in three-dimensional space are calculated, thereby generating a set of longitudinal section points.

[0086] The design terrain can be imported or set by the user.

[0087] For example, a local longitudinal section line list can be established, and the intersection distance list is traversed to generate longitudinal sections between each other. The principle is to take the surface layer thickness corresponding to the intersection distance from the surface layer thickness list, and to create a single longitudinal section according to the elevation interpolated from the intersection in the design terrain and the longitudinal section point (intersection distance, elevation) obtained by descending one surface layer thickness, and record it to the local longitudinal section list.

[0088] In some embodiments, based on the preset design terrain, the distance list and the intersection surface layer thickness list, the bottom coordinates of any intersection in three-dimensional space are calculated, thereby generating a set of longitudinal section points, comprising:

[0089] The intersection points in the distance list are projected one by one onto the design terrain to obtain the terrain elevation of the intersection points in the design terrain;

[0090] The thickness corresponding to any intersection distance is obtained from the intersection surface layer thickness list, and the terrain elevation is subtracted by the thickness corresponding to the intersection to obtain the bottom coordinates, thereby generating a set of longitudinal section points.

[0091] For example, the corresponding intersection in list 2 can be taken according to the intersection distance, the intersection is projected onto the terrain to obtain a three-dimensional point with Z value (elevation), the thickness corresponding to the intersection distance is taken, the final longitudinal section point is obtained by descending the Z value by the thickness, and then the connection between the two longitudinal section points is performed to obtain the longitudinal section line, and the same is repeated.

[0092] S14, connect the set of longitudinal section points in the order of the intersection distance to obtain a three-dimensional composite longitudinal section as a transition plate partition longitudinal section line.

[0093] S15, based on the transition plate partition longitudinal section line, a bottom grid of the transition plate is generated by a preset grid generation algorithm.

[0094] For example, the local longitudinal section line is sequentially connected by traversing the local longitudinal section list to obtain the final transition plate partition longitudinal section.

[0095] Figure 4A transition plate partitioned longitudinal section diagram is provided for an embodiment of the present application.

[0096] In some embodiments, the bottom grid of the transition plate is generated by a preset grid generation algorithm based on the transition plate partitioned longitudinal section line, including:

[0097] According to the transition plate partitioned longitudinal section line, a transition plate longitudinal section line sampling point set is constructed;

[0098] The obtained sampling point set is generated into a transition plate bottom grid according to a Delaunay triangulation algorithm.

[0099] Figure 5 An effect diagram of a transition plate bottom grid is provided for an embodiment of the present application.

[0100] In some embodiments, the transition plate longitudinal section line sampling point set is constructed according to the transition plate partitioned longitudinal section line, including:

[0101] A set of bottom sampling points is obtained by sampling along the transition plate partitioned longitudinal section line at a preset step length, and the transition plate longitudinal section line sampling point set is constructed.

[0102] Referring to Figure 5 The transition plate longitudinal section line is taken out to construct the transition plate longitudinal section line sampling point set, the transition plate longitudinal section line is sampled at a certain step length (here, 0.5 m is taken as an example) to obtain a sampling point set, and the obtained sampling point set is generated into a transition plate bottom grid according to a Delaunay triangulation algorithm.

[0103] S16, the vertex of the bottom grid is projected to the design terrain to generate a top grid of the transition plate.

[0104] In some embodiments, the vertex of the bottom grid is projected to the design terrain to generate a top grid of the transition plate, including:

[0105] The sampling point set is traversed, and each sampling point is projected to the design terrain to obtain a projection point set;

[0106] The obtained projection point set is generated into a transition plate top grid according to a Delaunay triangulation algorithm.

[0107] For example, Figure 6 An effect diagram of a transition plate top grid is provided for an embodiment of the present application. The projection point set is constructed, the sampling point set is traversed, each sampling point is projected to the design terrain to obtain a projection point set, and the obtained projection point set is generated into a transition plate top grid according to a Delaunay triangulation algorithm. The effect is as shown in Figure 5

[0108] ​S17, stitching the top grid and the bottom grid to form a closed entity, thereby generating a surface layer model of the airport pavement non-uniform thickness transition plate as an airport pavement transition plate model.

[0109] For example, Figure 7 A schematic view of a transition plate bottom and a bottom grid provided for an embodiment of the present application; Figure 8 An effect diagram of a generated transition plate surface layer model provided for an embodiment of the present application.

[0110] For example, after the sides between the two grids are filled up, the two grids are stitched into a whole grid body, and the transition plate surface layer model is obtained, as shown in Figures 7-8 .

[0111] In some embodiments, the method further comprises:

[0112] Offsetting the vertices of the bottom grid downward along a vertical direction by a preset base layer thickness to form a base layer bottom point set;

[0113] Generating and stitching a base layer model of the transition plate based on the bottom grid and the base layer bottom point set.

[0114] For example, the transition plate base layer can also be formulated according to requirements. Taking one layer as an example, the obtained sampling point set is lowered by a thickness of one base layer to obtain a point set of the bottom of the base layer. The above-mentioned method of generating a grid is used to generate a top surface of the base layer grid and a bottom surface of the base layer grid, respectively, according to the two sets of point sets. Then, the sides between the two surfaces are filled up, and finally, the base layer grid body is obtained. If there are multiple layers, the method is the same, and the whole effect is as shown in Figure 9 . Figure 9 An overall effect diagram of a transition plate model provided for an embodiment of the present application.

[0115] 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.

[0116] It is worth noting that Delaunay triangulation is an algorithm for connecting a discrete point set into a triangular grid, and its core feature is to maximize the minimum internal angle to avoid generating “narrow triangles” (i.e., satisfying the “empty circle characteristic”). Delaunay triangulation is commonly used to generate a grid, and is not described in detail in this embodiment.

[0117] 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.

[0118] Based on a general inventive concept, an embodiment of the present invention further provides a device for constructing an airport pavement transition plate model.

[0119] 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:

[0120] 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;

[0121] 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;

[0122] 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;

[0123] 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;

[0124] 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;

[0125] Projecting the vertices of the bottom mesh onto the design terrain to generate a top mesh of the transition plate;

[0126] stitching the top grid and the bottom grid to form a closed entity, thereby generating a surface layer model of the airport pavement non-uniform thickness transition plate as an airport pavement transition plate model.

[0127] Optionally, the constructing module is specifically configured to traverse the set of pavement structure partitions to obtain intersection distances and thicknesses of intersection points of each of the set of pavement structure partitions, and construct an intersection distance list and an intersection surface layer thickness list.

[0128] Optionally, the constructing module is specifically configured to arrange the intersection distance list in ascending order based on the intersection distances, and update the intersection distance list.

[0129] Optionally, the generating module is specifically configured to project the intersection points in the distance list onto the design terrain one by one to obtain terrain elevations of the intersection points in the design terrain.

[0130] Optionally, the generating module is specifically configured to obtain the thickness corresponding to any intersection distance from the intersection surface layer thickness list, subtract the terrain elevation from the thickness corresponding to the intersection point to obtain the bottom coordinates, and generate a set of longitudinal section points.

[0131] Optionally, the generating module is specifically configured to construct a set of transition plate longitudinal section line sampling points according to the transition plate partition longitudinal section line.

[0132] Optionally, the generating module is specifically configured to generate a transition plate bottom grid according to a Delaunay triangulation algorithm based on the set of sampling points.

[0133] Optionally, the generating module is specifically configured to sample the transition plate partition longitudinal section line at a preset step length to obtain a set of bottom sampling points, and construct a set of transition plate longitudinal section line sampling points.

[0134] Optionally, the generating module is specifically configured to traverse the set of sampling points, and project each sampling point onto the design terrain to obtain a set of projection points.

[0135] Optionally, the generating module is specifically configured to generate a transition plate top grid according to a Delaunay triangulation algorithm based on the set of projection points.

[0136] Optionally, the generating module is specifically configured to offset the vertices of the bottom grid downward along the vertical direction at a preset base layer thickness to form a base layer bottom point set.

[0137] Optionally, the generating module is specifically configured to generate and stitch a base layer model of the transition plate based on the bottom grid and the base layer bottom point set.

[0138] Regarding the device in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

[0139] The technical scheme provided by the embodiment of the application generates the bottom surface contour based on the accurate intersection calculation and thickness data through the original transition plate partition, and directly uses the designed terrain as the top surface, thereby fundamentally avoiding the error possibly introduced by manual adjustment, ensuring that the transition plate model and the adjacent structure can be smoothly and accurately connected, and ensuring the model quality. The data-driven calculation process of the application realizes the full-automatic generation from the basic data to the final model without manual intervention and adjustment, greatly shortens the modeling cycle, and significantly improves the modeling efficiency. In addition, the automatic process eliminates the uncertainty of human operation, especially when processing special-shaped or complex transition plates, the consistency and accuracy of the results can be ensured, thereby greatly reducing the repeated rework problem caused by model errors, and improving the reliability of modeling.

[0140] Based on the overall inventive concept, the embodiment of the application further provides a construction device for an airport pavement transition plate model.

[0141] Figure 11 For the structure diagram of the construction device for an airport pavement transition plate model provided by the embodiment of the application, please refer to Figure 11 The construction device for an airport pavement transition plate model provided by the embodiment of the application comprises a processor 31 and a memory 32 connected with the processor.

[0142] The memory 32 is used for storing a computer program, and the computer program is used for at least the construction method of the airport pavement transition plate model described in any of the above embodiments.

[0143] The processor 31 is used for calling and executing the computer program in the memory.

[0144] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

[0145] It can be understood that the same or similar parts in the above embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0146] It should be noted that in the description of the application, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the application, unless otherwise specified, the meaning of "a plurality of" is at least two.

[0147] Any procedural or methodological descriptions in flow charts or otherwise described herein can be understood to represent modules, segments, or portions of code that include executable instructions for implementing the specific logical functions or steps, and the scope of preferred embodiments of the present application includes additional implementations in which the functions are performed in a different order, including substantially simultaneously, or in reverse order, as will be understood by those skilled in the art to which embodiments of the present application pertain.

[0148] It should be understood that portions of the present application can be implemented in hardware, software, firmware, or combinations thereof. In the above-described embodiments, multiple steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, and as in another embodiment, implementation can be in any one or a combination of the following technologies, which are all well known in the art: discrete logic circuitry having logic gates for implementing logic functions upon an application of data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), and the like.

[0149] Those skilled in the art can understand that all or part of the steps carried out by the above-mentioned embodiments can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium, and when executed, include one or a combination of steps of the method embodiments.

[0150] In addition, each functional unit in each embodiment of the present application can be integrated in one processing module, or each unit can be physically present separately, or two or more units can be integrated in one module. The above-mentioned integrated module can be realized in the form of hardware or in the form of a software functional module. The integrated module, if realized in the form of a software functional module and sold or used as an independent product, can also be stored in a computer readable storage medium.

[0151] The above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0152] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0153] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the scope of the present application.

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; 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 of the pavement structure partitions, and constructing the intersection distance list and the intersection surface thickness list; based on the intersection distance, sorting the intersection distance list in ascending order to update the intersection distance 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, including: projecting the intersections in the distance list onto the design terrain one by one to obtain the terrain elevation of the intersection in the design terrain; obtaining the thickness corresponding to the distance of any intersection from the intersection surface thickness list, subtracting the thickness corresponding to the intersection from the terrain elevation to obtain the bottom coordinates, and 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 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.

3. The method according to claim 2, 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.

4. The method according to claim 3, 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.

5. The method according to claim 1, wherein 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.

6. The method according to any one of claims 1 to 5, characterized in that: The boundary of the target transition plate partition includes at least one of a straight line segment and a curved line segment.

7. 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 for determining the intersection of the target transition plate partition and each of the pavement structure partitions, obtaining the intersection distance and thickness associated with each intersection, and constructing 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; constructing the intersection distance list and the intersection surface thickness list comprises: traversing the pavement structure partition set, obtaining the intersection distance and thickness of each pavement structure partition, and constructing the intersection distance list and the intersection surface thickness list; and arranging the intersection distance list in ascending order based on the intersection distance to update the intersection distance list; A generation module 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; specifically, the generation module is configured to project the intersections in the distance list onto the design terrain one by one to obtain the terrain elevation of the intersection in the design terrain; obtain the thickness corresponding to the distance of any intersection from the intersection surface thickness list, subtract the thickness corresponding to the intersection from the terrain elevation to obtain the bottom coordinates, and 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.

8. 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 6; The processor is configured to call and execute the computer program in the memory.

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