CN113901550A - Assembly building BIM model generation method and related equipment - Google Patents
Assembly building BIM model generation method and related equipment Download PDFInfo
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Abstract
The embodiment of the application discloses a method for generating a BIM (building information modeling) model of an assembly building and related equipment, wherein the method for generating the BIM model of the assembly building comprises the following steps: obtaining a CAD drawing of a BIM unit model to be constructed; analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing; determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information; a BIM unit model is generated based at least on the parameter information of the partial preform. The embodiment of the application is favorable for improving the generation efficiency of the BIM model of the fabricated building.
Description
Technical Field
The application relates to the technical field of assembly type buildings, in particular to a BIM (building information modeling) model generation method for an assembly type building and related equipment.
Background
The fabricated building is a building assembled by fabricated building components, transfers a large amount of field operation work in the traditional construction mode to a factory for implementation, and has the characteristics of high speed and low production cost. The core of the assembly type Building scheme is generally to encode prefabricated parts and then map the prefabricated parts with field codes, and based on the core idea, some schemes manually establish a BIM (Building Information Modeling) model by using Information of the prefabricated parts, and because a large amount of human intervention is needed, the time consumption for constructing the BIM model is long and the efficiency is low.
Disclosure of Invention
In order to solve the problems, the application provides a method for generating the BIM model of the fabricated building and related equipment, which are beneficial to improving the generation efficiency of the BIM model of the fabricated building.
The first aspect of the embodiment of the present application provides a method for generating a BIM model of an assembly building, where the method includes:
obtaining a CAD drawing of a BIM unit model to be constructed;
analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing;
determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information;
a BIM unit model is generated based at least on the parameter information of the partial preform.
With reference to the first aspect, in one possible implementation manner, the parameter information of each preform includes a unique identifier and second coordinate information, and the determining the parameter information of each of the plurality of preforms corresponding to each of the plurality of blocks according to the basic information of the CAD drawing, the label information of each of the plurality of blocks, and the first coordinate information includes:
determining the serial number of each prefabricated part in a plurality of prefabricated parts corresponding to each image block based on the basic information of the CAD drawing and the marking information of each image block;
determining a unique identifier of each prefabricated part based on the basic information of the CAD drawing, the marking information of each picture block and the serial number of each prefabricated part;
and determining second coordinate information of each prefabricated part based on the basic information of the CAD drawing and the first coordinate information of each picture block.
With reference to the first aspect, in one possible implementation, the determining the unique identifier of each preform based on the basic information of the CAD drawing, the labeling information of each block, and the serial number of each preform includes:
obtaining a standard number or a translation number of the type of the prefabricated part corresponding to each image block based on the marking information of each image block;
and determining the unique identification of each prefabricated part based on the basic information of the CAD drawing, the standard number or the translation number of the prefabricated part type corresponding to each drawing block and the serial number of each prefabricated part, wherein the translation number is generated according to the standard number.
With reference to the first aspect, in one possible implementation, the method further includes:
determining the incidence relation between each prefabricated part according to the unique identifier and the second coordinate information;
generating a BIM unit model family from the plurality of BIM unit models based on the incidence relation;
and performing the integral modeling of the fabricated building by using the BIM unit model family to obtain the BIM integral model.
With reference to the first aspect, in a possible implementation manner, the analyzing the CAD drawing to obtain the basic information of the CAD drawing and the label information and the first coordinate information of each tile in the CAD drawing includes:
extracting a layer where each image block is located, and printing the layer where each image block is located as a to-be-identified drawing, wherein the to-be-identified drawing comprises at least one image block;
carrying out target detection on the drawing to be recognized to obtain a detection frame of each image block in at least one image block, and obtaining a rectangular frame to be recognized based on the detection frame;
detecting whether characters exist in the rectangular frame to be recognized or not, if so, covering the primitive in the rectangular frame to be recognized by adopting the background color in the rectangular frame to be recognized, reserving the characters in the rectangular frame to be recognized and recognizing the characters to obtain first marking information of the image blocks in the rectangular frame to be recognized; if not, zooming the rectangular frame to be recognized, obtaining a marking line of the image block in the rectangular frame to be recognized based on the zoomed rectangular frame to be recognized, recognizing characters in a preset range of the marking line, and obtaining second marking information of the image block in the rectangular frame to be recognized and first coordinate information of the image block in the rectangular frame to be recognized;
determining the first labeling information and the second labeling information as labeling information of the image blocks in the rectangular frame to be identified;
determining a prefabricated part corresponding to the image block in the rectangular frame to be identified according to the first marking information and the second marking information;
and inquiring an information management table of the prefabricated part corresponding to the image block in the rectangular frame to be identified to obtain the basic information of the CAD drawing.
With reference to the first aspect, in a possible implementation manner, obtaining a callout line of a tile in a rectangular frame to be recognized based on a scaled rectangular frame to be recognized includes:
detecting whether a primitive intersected or superposed with the frame line of the zoomed rectangular frame to be identified exists or not;
if so, judging whether the primitive intersected or overlapped with the frame line belongs to a picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified;
and if the primitive intersected or coincided with the frame line does not belong to the picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified, and the primitive intersected or coincided with the frame line or the bisector of the primitive is intersected with the picture block in the rectangular frame to be identified, determining the primitive intersected or coincided with the frame line as the marking line.
With reference to the first aspect, in one possible implementation, the method further includes:
and generating a two-dimensional code of each prefabricated part based on the unique identifier so as to print the two-dimensional code on the entity of each prefabricated part, so that an assembly worker can acquire the entrance information and the assembly information of each prefabricated part by scanning the two-dimensional code on the entity.
A second aspect of the embodiments of the present application provides an assembly building BIM model generating apparatus, which includes an obtaining unit and a processing unit;
the acquisition unit is used for acquiring a CAD drawing of the BIM unit model to be constructed;
the processing unit is used for analyzing the CAD drawing to obtain basic information of the CAD drawing, marking information of each image block in the CAD drawing and first coordinate information;
the processing unit is also used for determining the parameter information of each prefabricated part in the plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information;
and the processing unit is also used for generating a BIM unit model at least based on the parameter information of the partial prefabricated member.
A third aspect of embodiments of the present application provides an electronic device, which includes an input device, an output device, and a processor, and is adapted to implement one or more instructions; and the number of the first and second groups,
a computer storage medium having stored thereon one or more instructions adapted to be loaded by the processor and to perform the steps of the method of the first aspect.
A fourth aspect of embodiments of the present application provides a computer storage medium storing one or more instructions adapted to be loaded by a processor and to perform the steps of the method according to the first aspect.
Compared with the prior art, the method and the device have the advantages that the CAD drawing of the BIM unit model to be constructed is obtained; analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing; determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information; a BIM unit model is generated based at least on the parameter information of the partial preform. The basic information of the CAD drawing is obtained through drawing analysis, the parameter information of the prefabricated part is obtained by utilizing the marking information and the coordinate information of each picture block of the basic information of the CAD drawing, the BIM unit model is constructed based on the parameter information of part of the prefabricated part, the whole process drawing analysis speed is high, manual intervention is not needed, and the generation efficiency of the BIM unit model is favorably improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a diagram of a network system architecture according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a method for generating a BIM model of an assembly building according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a marking line provided in an embodiment of the present application;
FIG. 4 is a diagram illustrating standard numbering and translation numbering provided in accordance with an embodiment of the present application;
FIG. 5 is a schematic flow chart of another building BIM model generation method according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an assembled building BIM model generation apparatus according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprising" and "having," and any variations thereof, as appearing in the specification, claims and drawings of this application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
The embodiment of the application provides a BIM model generation scheme for an assembly type building to improve the generation or construction efficiency of the BIM model in the assembly type building, and when the BIM unit model needs to be constructed, firstly, a CAD (Computer Aided Design) drawing corresponding to the BIM unit model is obtained, and then the CAD drawing is analyzed to obtain basic information of the CAD drawing, marking information of each picture block in the CAD drawing, first coordinate information and the like. The basic information of the CAD drawing includes items, buildings, floors, units, floor heights and the like. Further, determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each picture block according to the basic information of the CAD drawing, the marking information of each picture block and the first coordinate information; and generating BIM unit models at least based on the parameter information of part of the prefabricated parts, generating unique codes of the prefabricated parts in each BIM unit model, generating BIM unit model families from the BIM unit models based on the incidence relation among the prefabricated parts in each BIM unit model, and generating the whole BIM unit model from each BIM unit model family. The whole process does not need to artificially carry out exclusive coding on the BIM unit model, reduces artificial participation, can also generate a BIM unit model group while generating the BIM unit model, adopts the BIM unit model group to complete the construction of the whole BIM model, and is favorable for improving the generation efficiency of the BIM model of the assembly type building.
Specifically, the BIM generation scheme may be implemented based on a network system architecture shown in fig. 1, where as shown in fig. 1, the network system architecture at least includes a user terminal, an electronic device, and a database, the entire network system is connected through a network, the network may be a virtual private network, a local area network, a wide area network, and the like, and a specific communication transmission protocol is not limited. The user terminal is used for providing a human-computer interaction interface, inputting a CAD drawing, a BIM model construction request, basic information of an engineering project corresponding to the BIM model and the like to the electronic equipment, displaying the BIM model output by the electronic equipment, or performing parameter adjustment, data updating and the like on each engineering project through a client of engineering project management. The electronic equipment is used for providing an operating environment of the intelligent drawing examination system, the intelligent drawing examination system has the function of analyzing and examining the CAD drawing, and under the condition that a BIM model construction request is received, the electronic equipment can execute the assembled building BIM model generation scheme and output the generated BIM unit model, the BIM unit model family and the BIM complete model to a user terminal for displaying. The database may be a local database of the electronic device, or a database independent of the electronic device, and is generally used for storing relevant information of the engineering project, such as information management tables, bills of materials, drawings, production distribution information, and the like of the prefabricated parts, and returns corresponding information in response to a query request of the electronic device. It should be understood that the user terminal in the present application may be a computer, a tablet computer, a smart phone, an intelligent terminal, and other devices, and the electronic device may be a local server, a cloud server, or a server cluster, and fig. 1 is merely an example.
Based on the network system architecture shown in fig. 1, the method for generating the building-mounted BIM model provided in the embodiment of the present application is described in detail below with reference to the related drawings, please refer to fig. 2, and fig. 2 is a schematic flow chart of the method for generating the building-mounted BIM model provided in the embodiment of the present application, and the method is applied to an electronic device, and as shown in fig. 2, includes steps S21-S25:
and S21, obtaining a CAD drawing of the BIM unit model to be constructed.
In the embodiment of the application, the to-be-constructed BIM unit model refers to a BIM model of a certain unit or module to be constructed, such as a staircase, a wall, a space, a floor, a building and the like, and for each to-be-constructed BIM unit model, the electronic device can acquire a corresponding CAD drawing from a database, or the CAD drawing is provided by a user through interaction with a user terminal.
And S22, analyzing the CAD drawing to obtain the basic information of the CAD drawing, the marking information of each image block in the CAD drawing and the first coordinate information.
In the embodiment of the application, the electronic equipment can execute the drawing analysis algorithm to analyze the CAD drawing, and can also analyze the CAD drawing through the intelligent drawing examination system.
Illustratively, analyzing the CAD drawing to obtain marking information and first coordinate information of each image block in the basic information CAD drawing of the CAD drawing, wherein the method comprises the following steps:
a: and extracting the layer where each image block is located, and printing the layer where each image block is located as a to-be-identified drawing, wherein the to-be-identified drawing comprises at least one image block.
It should be understood that a CAD drawing usually includes a plurality of tiles, each tile is composed of different primitives, and the primitives of a tile may exist in one layer or in a plurality of layers according to the preference of a designer or the quality of the drawing. If the primitives forming the graph block are only in one graph layer, the graph layer is printed as a drawing to be identified, namely an image to be identified, and if the primitives forming the graph block exist in a plurality of graph layers, such as the graph layer 0, the graph layer 1 and the graph layer 2, the graph layer 0, the graph layer 1 and the graph layer 2 are printed as the drawing to be identified, so that one graph block can completely appear in the drawing to be identified. It should be understood that primitives of some tiles may appear in the same layer, and these tiles will be printed in the same drawing to be identified, i.e., the drawing to be identified includes at least one tile.
B: and carrying out target detection on the drawing to be identified to obtain a detection frame of each image block in at least one image block, and obtaining a rectangular frame to be identified based on the detection frame.
The target detection may be performed by using a trained fast R-CNN (Faster candidate area Convolutional Neural network detector), a YOLO (young Only Look on, or a glance target detector), and other detectors, and each tile is used as a detection image, and the detector outputs a rectangular detection frame of each tile. Illustratively, obtaining the rectangular frame to be recognized based on the detection frame includes: the method comprises the steps of intercepting a region image of each image block from a drawing to be identified based on coordinates of a detection frame of each image block, converting the region image into a binary image, traversing the binary image pixel by pixel to obtain a contour line of each image block, obtaining a minimum circumscribed rectangle of the contour line, and determining an overlapping region of the minimum circumscribed rectangle and the detection frame as a rectangular frame to be identified. In the embodiment, the detector may erroneously recognize the mark line and the primitive not belonging to the block into the detection frame, so as to avoid interference caused by the elements when the prefabricated part corresponding to the block is recognized, the overlapping area of the minimum circumscribed rectangle and the detection frame is determined as the rectangular frame to be recognized, and the area image covered by the rectangular frame to be recognized is adopted for subsequent matching, thereby facilitating improvement of accuracy of the prefabricated part corresponding to the block to be recognized.
C: detecting whether characters exist in the rectangular frame to be recognized or not, if so, covering the primitive in the rectangular frame to be recognized by adopting the background color in the rectangular frame to be recognized, reserving the characters in the rectangular frame to be recognized and recognizing the characters to obtain first marking information of the image blocks in the rectangular frame to be recognized; if not, zooming the rectangular frame to be recognized, obtaining the marking line of the image block in the rectangular frame to be recognized based on the zoomed rectangular frame to be recognized, recognizing characters in a preset range of the marking line, and obtaining second marking information of the image block in the rectangular frame to be recognized and first coordinate information of the image block in the rectangular frame to be recognized.
The image block in the space is represented, characters possibly exist in the image block, in order to improve the accuracy of recognizing the characters, the background color in the rectangular frame to be recognized is adopted to cover the primitives forming the image block, so that only the characters exist in the rectangular frame to be recognized, then the characters are recognized by adopting an optical character technology, and the recognition result of the characters can be used as first marking information of the image block in the rectangular frame to be recognized, such as characters in bedrooms, balconies and the like. Illustratively, in order to make primitives forming an image block closer to a background, a self-adaptive coverage mode is adopted in the application, logarithmic sampling is performed on background pixels (background pixels refer to non-primitive and non-text pixels) in a rectangular frame to be recognized to obtain N background pixels, N is an integer greater than 1, an average value of the N background pixels is calculated, M times of logarithmic sampling is repeatedly performed on the background pixels in the rectangular frame to be recognized to obtain the N background pixels, the operation of calculating the average value of the N background pixels is performed to obtain M average values, M is an integer greater than 1, and a color corresponding to the average value of the M average values is taken as a background color. In the embodiment, in order to make the color of the covered primitive closer to the background and more natural, the primitive is covered by the background color obtained in the above manner, and M times of repeated sampling operations are introduced in order to eliminate sampling imbalance caused by logarithmic sampling.
If no characters exist in the rectangular frame to be recognized, the marking line of the image block in the rectangular frame to be recognized is found in a mode of zooming the rectangular frame to be recognized, and marking information of the image block is usually arranged near the marking line. Specifically, the rectangular frame to be recognized is enlarged according to the preset pixel each time, for example, the preset pixel may be 2 pixels, for the rectangular frame to be recognized after each amplification, whether a primitive intersecting or coinciding with the frame line exists is detected, such as an intersecting or coinciding straight line, an arc line and the like, if the primitive exists, judging whether the primitive belongs to the primitives of the adjacent image blocks (for the condition that a plurality of image blocks exist in the drawing to be identified, if only one image block exists, the step is not required to be executed), if the primitive does not belong to the adjacent image block, detecting whether the primitive intersects with the image block in the rectangular frame to be identified, or detecting whether the bisector straight line of the primitive intersects with the image blocks in the rectangular frame to be identified, if the primitive intersects with the image blocks in the rectangular frame to be identified, or the bisected straight line of the primitive is intersected with the image blocks in the rectangular frame to be recognized, and the primitive is determined to be the mark line of the image blocks in the rectangular frame to be recognized. Reference lines in this application include, among others, dimension lines, arrows, angle arcs, and circle centers, radius leaders, and the like. As shown in FIG. 3, for a plot line parallel to a rectangular parallelepiped segment, its origin or origin extension will generally intersect the segment, for a plot line perpendicular to a rectangular parallelepiped segment, its bisector line will generally intersect the segment, and for an angle-labeled arc, its bisector line will generally intersect the segment. Based on the mode, the marking line corresponding to the image block in the rectangular frame to be identified can be found out.
It should be understood that if no primitive intersecting or coinciding with the frame line of the amplified rectangular frame to be recognized exists after the first amplification, the next amplification operation is performed on the amplified rectangular frame to be recognized according to the preset pixels until the marking line of the image block in the rectangular frame to be recognized is found. It should be understood that there is usually text in the predetermined range of the annotation line, such as "this is the annotation" in fig. 3, and the text is recognized to obtain the second annotation information of the tile in the rectangular frame to be recognized. It should be understood that the coordinates of the block in the CAD drawing are usually marked, that is, the coordinate information of the block also exists near the mark line, and the coordinate information of the corresponding block, that is, the first coordinate information, is obtained when the character within the preset range of the mark line is identified.
D: and determining the first labeling information and the second labeling information as labeling information of the image blocks in the rectangular frame to be identified.
The first marking information in the rectangular frame to be identified and the second marking information of the marking line attachment can be basically determined as all marking information of the image blocks in the rectangular frame to be identified. In the embodiment, according to the mode in the step C, the labeling information of the image block in the rectangular frame to be identified is acquired, which is beneficial to ensuring the integrity of the labeling information.
E: and determining the prefabricated member corresponding to the image block in the rectangular frame to be identified according to the first marking information and the second marking information.
And matching the first marking information and the second marking information in a database, and taking the components corresponding to the parameters as prefabricated components corresponding to the image blocks in the rectangular frame to be identified, wherein the prefabricated components corresponding to the image blocks are considered to be various wall bodies if the width, the thickness, the name and the like of the wall can be matched.
F: and inquiring an information management table of the prefabricated part corresponding to the image block in the rectangular frame to be identified to obtain the basic information of the CAD drawing.
It should be understood that the database stores an information management table of the prefabricated member, the information management table records various information such as attributes, materials, production, construction, affiliated projects and the like of the prefabricated member, and basic information of the CAD drawing to be constructed can be obtained by querying the information management table of the prefabricated member corresponding to each block and then integrating the information in all the information management tables, for example: the belonged items, buildings, floors, units, floor heights and the like.
And S23, determining parameter information of each of the plurality of prefabricated parts corresponding to each block according to the basic information of the CAD drawing, the marking information of each block and the first coordinate information.
And S24, generating a BIM unit model at least based on the parameter information of the partial prefabricated member.
In an embodiment of the present application, the parameter information of each preform includes at least a unique identifier and second coordinate information of the preform. Exemplarily, the determining the parameter information of each of the plurality of preforms corresponding to each of the plurality of blocks according to the basic information of the CAD drawing, the label information of each of the plurality of blocks, and the first coordinate information includes:
determining the serial number of each prefabricated part in a plurality of prefabricated parts corresponding to each image block based on the basic information of the CAD drawing and the marking information of each image block;
determining a unique identifier of each prefabricated part based on the basic information of the CAD drawing, the marking information of each picture block and the serial number of each prefabricated part;
and determining second coordinate information of each prefabricated part based on the basic information of the CAD drawing and the first coordinate information of each picture block.
Each block in the CAD drawing may correspond to one type of preform or a combination of multiple types of preforms. For example, a stair block may include a stair preform and a platform preform, and a wall block may correspond to a wall preform. When the BIM model is constructed, the spatial position information of each prefabricated part corresponding to each block in the BIM model can be determined according to the basic information (information of projects, buildings, units, floors, floor heights and the like) of the CAD drawing and the first coordinate information of the blocks, the serial number of each prefabricated part is determined according to the spatial position information of each prefabricated part, and then the unique identifier and the second coordinate information of each prefabricated part are determined. And the second coordinate information is determined according to the first coordinate information and the spatial position information of each prefabricated part in the BIM.
Specifically, the database records standard numbers of various types of prefabricated members, and the standard numbers corresponding to the types of the prefabricated members, such as 30-01.10.30.01.01 shown in fig. 4, can be matched according to the labeling information of each block, wherein the standard numbers are uniform numbers of prefabricated members specified according to certain standards in the industry. And then generating a unique identifier based on the basic information of the CAD drawing, the standard number of the type of the prefabricated part corresponding to each image block and the serial number of each prefabricated part.
In some embodiments, different project developers may set corresponding translation numbers according to the standard numbers of each type of prefabricated parts, the translation numbers are custom numbers of the project developers for a certain prefabricated part, the translation numbers of the same type of prefabricated parts may be different in databases of different developers, but the corresponding standard numbers exist, so that the translation numbers of the prefabricated parts can be determined through the standard numbers, such as the translation numbers 30-01.10.30.01.01 in fig. 4 are PCB 4. Further, if the user needs to query the relevant information of the prefabricated member, the information can be obtained by clicking a pull-down control in a standard number, for example, the component type of the PCB4 in fig. 4 is a laminated floor, and specifically, the prefabricated member further includes length, width, height, volume, weight and the like.
In the embodiment of the present application, for example, the translation number of the preform corresponding to a block is PCB5, the basic information of the CAD drawing is item L, building 01, floor 02, unit a, and the serial number of a certain preform corresponding to the block is 06, then the unique identifier of the preform may be L0102PCB5a 06.
The second coordinate information refers to coordinate information of the prefabricated part in the BIM unit model and is expressed as (x, y, z), wherein the x coordinate and the y coordinate can be replaced by the first coordinate information of the prefabricated part in a CAD drawing, and the z coordinate can be obtained according to the floor and the floor height information. For example, when the same unit has a plurality of preforms of the same type on the same floor, the unique identifier of the preform may be further encoded, such as adding a serial number after the unique identifier. With the unique identifier of the prefabricated member and the second coordinate information, parameters for generating the BIM unit model corresponding to the prefabricated member are obtained, and a plurality of BIM unit models in the fabricated building can be generated based on the parameters.
Illustratively, the method further comprises:
determining the incidence relation between each prefabricated part according to the unique identifier and the second coordinate information;
generating a BIM unit model family from the plurality of BIM unit models based on the incidence relation;
and performing the integral modeling of the fabricated building by using the BIM unit model family to obtain the BIM integral model.
In the embodiment of the present application, the association relationship between the preforms includes a horizontal parallel relationship, a vertical parallel relationship, a dependency relationship, and the like, for example, the preforms adjacent to each other in the inner, outer, and various directions may be determined according to the unique identifier and the second coordinate information of each preform, and based on the spatial association relationship, a BIM unit model family may be generated from a plurality of BIM unit models. Such as: the existing 10 BIM unit models, BIM unit model 1, BIM unit model 2 and BIM unit model 5 can form BIM unit model family 1, BIM unit model 3, BIM unit model 4, BIM unit model 6 and BIM unit model 9 can form BIM unit model family 2, BIM unit model 7, BIM unit model 8 and BIM unit model 10 can form BIM unit model family 3, then the BIM unit model family 1, BIM unit model family 2 and BIM unit model family 3 are utilized to carry out assembled building integral modeling, and BIM integral model can be obtained. In the embodiment, based on the incidence relation among the prefabricated members, the building of the BIM unit model family can be completed when a plurality of BIM unit models are generated, the BIM unit model family generates the BIM whole model, the BIM unit models are assembled into the BIM whole without spending redundant time, and the generation efficiency of the BIM whole model is favorably improved.
Illustratively, the method further comprises:
and generating a two-dimensional code of each prefabricated part based on the unique identifier so as to print the two-dimensional code on the entity of each prefabricated part, so that an assembly worker can acquire the entrance information and the assembly information of each prefabricated part by scanning the two-dimensional code on the entity.
In the embodiment of the application, after the unique identifier of the prefabricated member is obtained, the two-dimensional code corresponding to the unique identifier in a one-to-one mode is obtained by adopting a two-dimensional code generation technology, so that the two-dimensional code is printed on the entity of the prefabricated member, and an assembling worker can know the entrance information and the assembling information of the corresponding prefabricated member by scanning the two-dimensional code.
Illustratively, the prefabricated parts assembled in the BIM integral model can be displayed as blue, and the unassembled prefabricated parts in the BIM integral model can be displayed as black through the project progress management system, so that the construction progress can be dynamically displayed.
It can be seen that, in the embodiment of the application, the CAD drawing of the BIM unit model to be constructed is obtained; analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing; determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information; a BIM unit model is generated based at least on the parameter information of the partial preform. The basic information of the CAD drawing is obtained through drawing analysis, the parameter information of the prefabricated part is obtained through the marking information and the coordinate information of each picture block of the basic information of the CAD drawing, the BIM unit model is built based on part of the parameter information, the whole process drawing analysis speed is high, manual intervention is not needed, and the generation efficiency of the BIM unit model is favorably improved.
Referring to fig. 5, fig. 5 is a schematic flow chart of another building-on-building BIM model generation method provided in the embodiment of the present application, and as shown in fig. 5, the method includes steps S51-S55:
s51, obtaining a CAD drawing of the BIM unit model to be constructed;
s52, analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing;
s53, generating a unique identifier of each of a plurality of prefabricated parts corresponding to each picture block based on the basic information of the CAD drawing, the marking information of each picture block and the first coordinate information of each picture block;
s54, obtaining second coordinate information of each of the plurality of prefabricated parts corresponding to each image block based on the basic information of the CAD drawing and the first coordinate information of each image block;
and S55, generating a BIM unit model based on the unique identifier of each prefabricated member and the second coordinate information of each prefabricated member.
The specific implementation of the steps S51-S55 has been described in detail in the embodiment shown in fig. 2, and is not repeated here to avoid repetition.
It can be seen that, in the embodiment of the application, the CAD drawing of the BIM unit model to be constructed is obtained; analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing; determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information; a BIM unit model is generated based at least on the parameter information of the partial preform. The basic information of the CAD drawing is obtained through drawing analysis, the parameter information of the prefabricated part is obtained through the marking information and the coordinate information of each picture block of the basic information of the CAD drawing, the BIM unit model is built based on part of the parameter information, the whole process drawing analysis speed is high, manual intervention is not needed, and the generation efficiency of the BIM unit model is favorably improved.
Based on the description of the above method embodiments, the present application further provides a building-mounted BIM model generating apparatus, which may be a computer program (including program code) running in a terminal. The prefabricated building BIM model generation apparatus may perform the method shown in fig. 2 or 5. Referring to fig. 6, the apparatus includes an obtaining unit 601 and a processing unit 602;
the obtaining unit 601 is used for obtaining a CAD drawing of a BIM unit model to be constructed;
the processing unit 602 is configured to analyze the CAD drawing to obtain basic information of the CAD drawing, and label information and first coordinate information of each image block in the CAD drawing;
the processing unit 602 is further configured to determine parameter information of each of the plurality of prefabricated components corresponding to each of the plurality of drawing blocks according to the basic information of the CAD drawing, the label information of each drawing block, and the first coordinate information;
the processing unit 602 generates a BIM unit model based at least on the parameter information of the partial preform.
In an alternative embodiment, the parameter information of each preform includes a unique identifier and second coordinate information, and in terms of determining the parameter information of each preform in the plurality of preforms corresponding to each block according to the basic information of the CAD drawing, the label information of each block, and the first coordinate information, the processing unit 602 is specifically configured to:
determining the serial number of each prefabricated part in a plurality of prefabricated parts corresponding to each image block based on the basic information of the CAD drawing and the marking information of each image block;
determining a unique identifier of each prefabricated part based on the basic information of the CAD drawing, the marking information of each picture block and the serial number of each prefabricated part;
and determining second coordinate information of each prefabricated part based on the basic information of the CAD drawing and the first coordinate information of each picture block.
In an alternative embodiment, in terms of generating the unique identifier based on the basic information of the CAD drawing, the labeling information of each tile, and the first coordinate information of each tile, the processing unit 602 is specifically configured to:
obtaining a standard number or a translation number of the type of the prefabricated part corresponding to each image block based on the marking information of each image block;
and determining the unique identification of each prefabricated part based on the basic information of the CAD drawing, the standard number or the translation number of the prefabricated part type corresponding to each drawing block and the serial number of each prefabricated part, wherein the translation number is generated according to the standard number.
In an alternative embodiment, the processing unit 602 is further configured to:
determining the incidence relation between each prefabricated part according to the unique identifier and the second coordinate information;
generating a BIM unit model family from the plurality of BIM unit models based on the incidence relation;
and performing the integral modeling of the fabricated building by using the BIM unit model family to obtain the BIM integral model.
In an optional implementation manner, in terms of analyzing the CAD drawing to obtain the basic information of the CAD drawing and the label information and the first coordinate information of each tile in the CAD drawing, the processing unit 602 is specifically configured to:
extracting the layer where each image block is located in each image block, and printing the layer where each image block is located as a to-be-identified drawing, wherein the to-be-identified drawing comprises at least one image block;
carrying out target detection on the drawing to be recognized to obtain a detection frame of each image block in at least one image block, and obtaining a rectangular frame to be recognized based on the detection frame;
detecting whether characters exist in the rectangular frame to be recognized or not, if so, covering the primitive in the rectangular frame to be recognized by adopting the background color in the rectangular frame to be recognized, reserving the characters in the rectangular frame to be recognized and recognizing the characters to obtain first marking information of the image blocks in the rectangular frame to be recognized; if not, zooming the rectangular frame to be recognized, obtaining a marking line of the image block in the rectangular frame to be recognized based on the zoomed rectangular frame to be recognized, recognizing characters in a preset range of the marking line, and obtaining second marking information of the image block in the rectangular frame to be recognized and first coordinate information of the image block in the rectangular frame to be recognized;
determining the first labeling information and the second labeling information as labeling information of the image blocks in the rectangular frame to be identified;
determining a prefabricated part corresponding to the image block in the rectangular frame to be identified according to the first marking information and the second marking information;
and inquiring an information management table of the prefabricated part corresponding to the image block in the rectangular frame to be identified to obtain the basic information of the CAD drawing.
In an optional implementation manner, in terms of obtaining the annotation line of the tile in the rectangular frame to be recognized based on the scaled rectangular frame to be recognized, the processing unit 602 is specifically configured to:
detecting whether a primitive intersected or superposed with the frame line of the zoomed rectangular frame to be identified exists or not;
if so, judging whether the primitive intersected or overlapped with the frame line belongs to a picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified;
and if the primitive intersected or coincided with the frame line does not belong to the picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified, and the primitive intersected or coincided with the frame line or the bisector of the primitive is intersected with the picture block in the rectangular frame to be identified, determining the primitive intersected or coincided with the frame line as the marking line.
In an alternative embodiment, the processing unit 602 is further configured to:
and generating a two-dimensional code of each prefabricated part based on the unique identifier so as to print the two-dimensional code on the entity of each prefabricated part, so that an assembly worker can acquire the entrance information and the assembly information of each prefabricated part by scanning the two-dimensional code on the entity.
It can be seen that in the fabricated building BIM model generation apparatus shown in fig. 6, a CAD drawing of a to-be-constructed BIM unit model is obtained; analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing; determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information; a BIM unit model is generated based at least on the parameter information of the partial preform. The basic information of the CAD drawing is obtained through drawing analysis, the parameter information of the prefabricated part is obtained through the marking information and the coordinate information of each picture block of the basic information of the CAD drawing, the BIM unit model is built based on part of the parameter information, the whole process drawing analysis speed is high, manual intervention is not needed, and the generation efficiency of the BIM unit model is favorably improved.
According to an embodiment of the present application, each unit in the prefabricated building BIM model generation apparatus shown in fig. 6 may be respectively or entirely combined into one or several additional units to form the unit, or some unit(s) therein may be further split into multiple units with smaller functions to form the unit(s), which may achieve the same operation without affecting the achievement of the technical effect of the embodiment of the present invention. The units are divided based on logic functions, and in practical application, the functions of one unit can be realized by a plurality of units, or the functions of a plurality of units can be realized by one unit. In other embodiments of the present invention, the building BIM model generation device may also include other units, and in practical applications, these functions may be implemented by the other units, and may be implemented by cooperation of a plurality of units.
According to another embodiment of the present application, the apparatus device shown in fig. 6 may be constructed by running a computer program (including program codes) capable of executing steps involved in the respective methods shown in fig. 2 or fig. 5 on a general-purpose computing device such as a computer including a processing element such as a Central Processing Unit (CPU), a random access storage medium (RAM), a read-only storage medium (ROM), and a storage element, and the above-described method of the embodiment of the present invention may be implemented. The computer program may be recorded on a computer-readable recording medium, for example, and loaded and executed in the above-described computing apparatus via the computer-readable recording medium.
Based on the description of the method embodiment and the device embodiment, the embodiment of the invention also provides electronic equipment. Referring to fig. 7, the electronic device includes at least a processor 71, an input device 72, an output device 73, and a computer storage medium 74. The processor 71, input device 72, output device 73, and computer storage medium 74 within the electronic device may be connected by a bus or other means.
A computer storage medium 74 may be stored in the memory of the electronic device, the computer storage medium 74 being used to store a computer program comprising program instructions, the processor 71 being used to execute the program instructions stored by the computer storage medium 74. The processor 71 (or CPU) is a computing core and a control core of the electronic device, and is adapted to implement one or more instructions, and in particular, is adapted to load and execute the one or more instructions so as to implement a corresponding method flow or a corresponding function.
In one embodiment, the processor 71 of the electronic device provided in the embodiment of the present application may be configured to perform a series of building-on-building BIM model generation processes, including:
obtaining a CAD drawing of a BIM unit model to be constructed;
analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing;
determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information;
a BIM unit model is generated based at least on the parameter information of the partial preform.
In another embodiment, the parameter information of each preform includes a unique identifier and second coordinate information, and the processor 71 determines the parameter information of each preform in the plurality of preforms corresponding to each block according to the basic information of the CAD drawing, the label information of each block, and the first coordinate information, including:
determining the serial number of each prefabricated part in a plurality of prefabricated parts corresponding to each image block based on the basic information of the CAD drawing and the marking information of each image block;
determining a unique identifier of each prefabricated part based on the basic information of the CAD drawing, the marking information of each picture block and the serial number of each prefabricated part;
and determining second coordinate information of each prefabricated part based on the basic information of the CAD drawing and the first coordinate information of each picture block.
In another embodiment, the processor 71 performs the step of determining the unique identifier of each preform based on the basic information of the CAD drawing, the labeling information of each block, and the serial number of each preform, including:
obtaining a standard number or a translation number of the type of the prefabricated part corresponding to each image block based on the marking information of each image block;
and determining the unique identification of each prefabricated part based on the basic information of the CAD drawing, the standard number or the translation number of the prefabricated part type corresponding to each drawing block and the serial number of each prefabricated part, wherein the translation number is generated according to the standard number.
In another embodiment, processor 71 is further configured to:
determining the incidence relation between each prefabricated part according to the unique identifier and the second coordinate information;
generating a BIM unit model family from the plurality of BIM unit models based on the incidence relation;
and performing the integral modeling of the fabricated building by using the BIM unit model family to obtain the BIM integral model.
In another embodiment, the processor 71 performs parsing on the CAD drawing to obtain the basic information of the CAD drawing and the label information and the first coordinate information of each tile in the CAD drawing, including:
extracting a layer where each image block is located, and printing the layer where each image block is located as a to-be-identified drawing, wherein the to-be-identified drawing comprises at least one image block;
carrying out target detection on the drawing to be recognized to obtain a detection frame of each image block in at least one image block, and obtaining a rectangular frame to be recognized based on the detection frame;
detecting whether characters exist in the rectangular frame to be recognized or not, if so, covering the primitive in the rectangular frame to be recognized by adopting the background color in the rectangular frame to be recognized, reserving the characters in the rectangular frame to be recognized and recognizing the characters to obtain first marking information of the image blocks in the rectangular frame to be recognized; if not, zooming the rectangular frame to be recognized, obtaining a marking line of the image block in the rectangular frame to be recognized based on the zoomed rectangular frame to be recognized, recognizing characters in a preset range of the marking line, and obtaining second marking information of the image block in the rectangular frame to be recognized and first coordinate information of the image block in the rectangular frame to be recognized;
determining the first labeling information and the second labeling information as labeling information of the image blocks in the rectangular frame to be identified;
determining a prefabricated part corresponding to the image block in the rectangular frame to be identified according to the first marking information and the second marking information;
and inquiring an information management table of the prefabricated part corresponding to the image block in the rectangular frame to be identified to obtain the basic information of the CAD drawing.
In another embodiment, the processor 71 performs deriving the callout of the tile in the rectangular frame to be recognized based on the scaled rectangular frame to be recognized, including:
detecting whether a primitive intersected or superposed with the frame line of the zoomed rectangular frame to be identified exists or not;
if so, judging whether the primitive intersected or overlapped with the frame line belongs to a picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified;
and if the primitive intersected or coincided with the frame line does not belong to the picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified, and the primitive intersected or coincided with the frame line or the bisector of the primitive is intersected with the picture block in the rectangular frame to be identified, determining the primitive intersected or coincided with the frame line as the marking line.
In another embodiment, processor 71 is further configured to:
and generating a two-dimensional code of each prefabricated part based on the unique identifier so as to print the two-dimensional code on the entity of each prefabricated part, so that an assembly worker can acquire the entrance information and the assembly information of each prefabricated part by scanning the two-dimensional code on the entity.
By way of example, electronic devices may include, but are not limited to, a processor 71, an input device 72, an output device 73, and a computer storage medium 74. It will be appreciated by those skilled in the art that the schematic diagrams are merely examples of an electronic device and are not limiting of an electronic device and may include more or fewer components than those shown, or some components in combination, or different components.
It should be noted that, since the steps in the method for generating a building-on-building BIM model are implemented when the processor 71 of the electronic device executes the computer program, the embodiments of the method for generating a building-on-building BIM model are all applicable to the electronic device, and all can achieve the same or similar beneficial effects.
An embodiment of the present application further provides a computer storage medium (Memory), which is a Memory device in an electronic device and is used to store programs and data. It is understood that the computer storage medium herein may include a built-in storage medium in the terminal, and may also include an extended storage medium supported by the terminal. The computer storage medium provides a storage space that stores an operating system of the terminal. Also stored in this memory space are one or more instructions, which may be one or more computer programs (including program code), suitable for loading and execution by processor 71. The computer storage medium may be a high-speed RAM memory, or may be a non-volatile memory (non-volatile memory), such as at least one disk memory; alternatively, it may be at least one computer storage medium located remotely from the processor 71. In one embodiment, one or more instructions stored in a computer storage medium may be loaded and executed by processor 71 to perform the corresponding steps described above with respect to the method for generating a BIM model of a fabricated building.
It should be noted that, since the computer program of the computer storage medium is executed by the processor to implement the steps in the method for generating the building BIM, all the embodiments or implementations of the method for generating the building BIM are applicable to the computer storage medium, and can achieve the same or similar beneficial effects.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A method for generating a BIM model of an assembly building, the method comprising:
obtaining a CAD drawing of a BIM unit model to be constructed;
analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing;
determining parameter information of each prefabricated part in a plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information;
generating the BIM unit model based at least in part on the parameter information of the preform.
2. The method as claimed in claim 1, wherein the parameter information of each preform includes a unique identifier and second coordinate information, and the determining the parameter information of each of the plurality of preforms corresponding to each of the plurality of blocks according to the basic information of the CAD drawing, the label information of each of the plurality of blocks, and the first coordinate information includes:
determining the serial number of each prefabricated part in a plurality of prefabricated parts corresponding to each image block based on the basic information of the CAD drawing and the marking information of each image block;
determining a unique identifier of each prefabricated part based on the basic information of the CAD drawing, the marking information of each picture block and the serial number of each prefabricated part;
and determining second coordinate information of each prefabricated part based on the basic information of the CAD drawing and the first coordinate information of each picture block.
3. The method of claim 2, wherein the determining the unique identifier of each preform based on the basic information of the CAD drawing, the labeling information of each tile, and the serial number of each preform comprises:
obtaining a standard number or a translation number of the prefabricated part type corresponding to each image block based on the marking information of each image block;
and determining the unique identification of each prefabricated part based on basic information of a CAD drawing, the standard number or the translation number of the prefabricated part type corresponding to each drawing block and the serial number of each prefabricated part, wherein the translation number is generated according to the standard number.
4. The method of claim 2, further comprising:
determining the incidence relation between each prefabricated part according to the unique identifier and the second coordinate information;
generating a BIM unit model family from a plurality of BIM unit models based on the incidence relation;
and performing integral modeling on the fabricated building by using the BIM unit model family to obtain a BIM integral model.
5. The method according to any one of claims 1 to 4, wherein the parsing the CAD drawing to obtain the basic information of the CAD drawing, the label information of each image block in the CAD drawing, and the first coordinate information includes:
extracting the layer where each image block is located, and printing the layer where each image block is located as a to-be-identified drawing, wherein the to-be-identified drawing comprises at least one image block;
performing target detection on the drawing to be identified to obtain a detection frame of each image block in the at least one image block, and obtaining a rectangular frame to be identified based on the detection frame;
detecting whether characters exist in the rectangular frame to be recognized or not, if so, covering the primitive in the rectangular frame to be recognized by adopting the background color in the rectangular frame to be recognized, reserving the characters in the rectangular frame to be recognized and recognizing the characters to obtain first marking information of the image block in the rectangular frame to be recognized; if not, zooming the rectangular frame to be recognized, obtaining a marking line of the image block in the rectangular frame to be recognized based on the zoomed rectangular frame to be recognized, recognizing characters in a preset range of the marking line, and obtaining second marking information of the image block in the rectangular frame to be recognized and first coordinate information of the image block in the rectangular frame to be recognized;
determining the first labeling information and the second labeling information as labeling information of the image blocks in the rectangular frame to be identified;
determining a prefabricated part corresponding to the image block in the rectangular frame to be identified according to the first marking information and the second marking information;
and inquiring an information management table of the prefabricated part corresponding to the image block in the rectangular frame to be identified to obtain the basic information of the CAD drawing.
6. The method of claim 5, wherein obtaining the annotation line of the tile within the rectangular frame to be identified based on the scaled rectangular frame to be identified comprises:
detecting whether a primitive intersected or superposed with the frame line of the zoomed rectangular frame to be identified exists or not;
if so, judging whether the primitive intersected or overlapped with the frame line belongs to a block adjacent to the block in the rectangular frame to be identified in the drawing to be identified;
and if the primitive intersected or coincided with the frame line does not belong to the picture block adjacent to the picture block in the rectangular frame to be identified in the drawing to be identified, and the primitive intersected or coincided with the frame line or the bisector of the primitive is intersected with the picture block in the rectangular frame to be identified, determining the primitive intersected or coincided with the frame line as the marking line.
7. The method of claim 2, further comprising:
and generating a two-dimensional code of each prefabricated part based on the unique identifier so as to print the two-dimensional code on the entity of each prefabricated part, so that an assembly worker can acquire the entrance information and the assembly information of each prefabricated part by scanning the two-dimensional code on the entity.
8. An assembly building BIM model generation device is characterized by comprising an acquisition unit and a processing unit;
the acquisition unit is used for acquiring a CAD drawing of the BIM unit model to be constructed;
the processing unit is used for analyzing the CAD drawing to obtain basic information of the CAD drawing, and marking information and first coordinate information of each image block in the CAD drawing;
the processing unit is further used for determining parameter information of each prefabricated part in the plurality of prefabricated parts corresponding to each image block according to the basic information of the CAD drawing, the marking information of each image block and the first coordinate information;
the processing unit is further used for generating the BIM unit model at least based on the parameter information of part of the prefabricated member.
9. An electronic device comprising an input device and an output device, further comprising:
a processor adapted to implement one or more instructions; and the number of the first and second groups,
a computer storage medium having stored thereon one or more instructions adapted to be loaded by the processor and to perform the steps of the method according to any of claims 1-7.
10. A computer storage medium having one or more instructions stored thereon, the one or more instructions adapted to be loaded by a processor and to perform the steps of the method of any of claims 1-7.
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