CN114359478A - Building modeling method based on BIM modular modeling - Google Patents
Building modeling method based on BIM modular modeling Download PDFInfo
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- CN114359478A CN114359478A CN202111565699.2A CN202111565699A CN114359478A CN 114359478 A CN114359478 A CN 114359478A CN 202111565699 A CN202111565699 A CN 202111565699A CN 114359478 A CN114359478 A CN 114359478A
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Abstract
The invention relates to the technical field of building modeling, in particular to a building modeling method based on BIM modular modeling, which comprises the following steps of inputting building original data, establishing a network model, acquiring point cloud data of a building, processing the building point cloud data, carrying out information fusion and modeling, further comprising a data input device, a modeling device, a data acquisition device, a data processing device, a comprehensive processing device and the like, inputting and establishing the network model through an electronic version of a building construction drawing or a building design drawing, acquiring a building image by combining a satellite remote sensing technology, processing by using PCI Geomatica processing software, acquiring point cloud data, combining and splicing the point cloud data by using PCL software, carrying out fusion and modeling of the network model and the point cloud data, and carrying out point cloud data acquisition and modeling by using floors as units, and the modeling is modularized, so that the modeling process is more convenient and simpler.
Description
Technical Field
The invention relates to the technical field of building modeling, in particular to a building modeling method based on BIM modular modeling.
Background
The building information model, namely the BIM (building information modeling) building design method, has to be bound in the same file because each specialty is closely combined on the platform of the center file, especially the electromechanical specialty, the modification of the model is directly reflected on the model, which leads to the compactness of information flow, and because of the intuition of the model, the interpretation time is reduced, the communication effect is strengthened, the communication link is reduced, the stability and accuracy of the information are ensured, meanwhile, the design quality is improved, the building construction condition is truly reflected by the BIM three-dimensional simulation working mode, and records the related detailed data information, and completely exposes the design problems, transparentizes many problems, this makes many construction problems can be discovered in advance and solved, has fundamentally improved building design's rationality and quality, and this compares with the change in later stage, has huge economic benefits and value.
The BIM design process is an information cooperative behavior based on real-time interaction of the same platform, a large amount of information can be generated in the whole process, the process of comprehensively processing the information is the core of BIM design work, the BIM usually completes a design model based on a two-dimensional design drawing electronic edition at present, but the two-dimensional design drawing electronic edition of an existing building is lost, drawing information is different from the completion condition of the existing building, the established BIM model is different from the actual condition of the existing building, and due to the information difference generated in the construction process, the actual information size of the building is different from the size on the design drawing, so that more problems can be generated in an information exchange management ring.
Disclosure of Invention
The invention aims to provide a building modeling method based on BIM modular modeling, which is used for solving the problems and is realized by the following technical scheme:
the invention relates to a building modeling method based on BIM modular modeling, which comprises the following steps:
step S1: inputting building original data, establishing a network model, establishing a network and drawing the positions of a floor line, a beam and a floor slab, wherein the building original data comprises the floor number, the floor height and the like;
step S2: acquiring point cloud data of a building, and constructing a building point cloud database;
step S3: building point cloud data processing, namely merging and splicing all point cloud data and carrying out coordinate conversion to obtain point cloud data under an absolute coordinate system, and classifying and naming the point cloud data according to floors as A1, A2, A3 and A4 …;
step S4: information fusion, namely importing point cloud data A1, A2, A3 and A4 … into a network model;
step S5: modeling is carried out according to the fused information of S4, and a modularization modeling process is carried out by taking the floor as a unit and based on point cloud data A1, A2, A3, A4 and the like.
Preferably: the invention also comprises a data input device for inputting the original data of the building; a modeling means; used for building a building network model; the data acquisition device is used for acquiring building point cloud data; the data processing device is used for processing the point cloud data; and the comprehensive processing device is used for fusing and modeling data.
Preferably: the building raw data can be any one of a building construction drawing or an electronic edition of a building design drawing.
Preferably: the point cloud data is obtained by a satellite remote sensing technology, the spatial resolution of a remote sensing image is required to be more than 0.5 m, and the point cloud data at least comprises R, G, B wave bands including WorldView-2 remote sensing satellite data and Chinese Hi-Jing I remote sensing satellite data.
Preferably: the point cloud data includes locations of architectural surface members.
Preferably: the remote sensing image is processed by adopting software PCI Geomatca to obtain point cloud data.
Preferably: and processing the point cloud data by adopting software PCL, and converting an absolute coordinate system of the point cloud data.
Preferably: the modeling software comprises Revit software, and the modeling process carries out layer-by-layer modeling according to the point cloud data.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the steps of inputting and establishing a network model through an electronic version of a building construction drawing or a building design drawing, collecting a building image by combining a satellite remote sensing technology, processing by using PCI Geomatca processing software to obtain point cloud data, combining and splicing the point cloud data by using PCL software and converting a coordinate system, fusing the network model and the point cloud data by using software such as Revit and the like and modeling, collecting and modeling the point cloud data by using floors as units, and modeling in a modularized mode, so that the modeling process is more convenient and simpler, and meanwhile, modeling is performed on a building by combining the satellite remote sensing technology and a construction drawing, and the obtained model is more accurate.
Drawings
FIG. 1 is a flow chart of a building modeling method based on BIM modular modeling.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1, the building modeling method based on the BIM modular modeling of the present invention includes the following steps; step S1: inputting building original data, establishing a network model, establishing a network and drawing the positions of a floor line, a beam and a floor slab, wherein the building original data comprises the floor number, the floor height and the like.
Step S2: the method comprises the steps of obtaining point cloud data of a building, constructing a building point cloud database, obtaining a multi-view satellite image of the building by using a satellite remote sensing technology, and obtaining the point cloud data by using PCI Geomatca software for processing.
Step S3: and (3) building point cloud data processing, namely processing the point cloud data by using PCL software, merging the point cloud data of each layer, splicing the point cloud data of each space, then converting a coordinate system to obtain point cloud data under an absolute coordinate system, and respectively naming the point cloud data as A1, A2, A3 and A4 … according to floors.
Step S4: and information fusion, namely fusing the network model and the point cloud data through Revit software.
And step S5, modeling is carried out according to the information fused in the step S4, and a modular modeling process is carried out by means of Revit software on the basis of the point cloud data A1, A2, A3, A4 and the like by taking the floor as a unit.
The invention also comprises the following means: the device comprises a data entry device, a modeling device, a data acquisition device, a data processing device and a comprehensive processing device.
The data entry device comprises a drawing scanner and design drawing electronic version entry software and is used for entering original building data, such as building floor height, floor number and the like.
The modeling device comprises Revit used for drawing a building floor line and constructing a network model, so that the point cloud data can be fused conveniently.
The data acquisition device comprises a multispectral scanner and the like, and a remote sensing image of the building is acquired by using a satellite remote sensing technology.
The data processing device comprises a computer provided with PCI Geomatca and other software, and is used for processing the remote sensing image to obtain point cloud data.
The comprehensive processing device comprises a computer provided with PCL (personal computer) software, Revit software and other software, converts an absolute coordinate system while merging and splicing point cloud data, then models the point cloud data and a network model, and fuses and models the point cloud data by taking a floor as a unit.
The modeling process of the modeling method of the invention is as follows: the method comprises the steps of inputting and establishing a network model through an electronic version of a building construction drawing or a building design drawing, collecting a building image by combining a satellite remote sensing technology, processing by using PCI Geomatca processing software to obtain point cloud data, combining and splicing the point cloud data by using PCL software, converting a coordinate system, fusing the network model and the point cloud data by using software such as Revit and the like, modeling, and collecting and modeling the point cloud data by using a floor as a unit.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. A building modeling method based on BIM modular modeling is characterized by comprising the following steps:
step S1: inputting building original data, establishing a network model, establishing a network and drawing the positions of a floor line, a beam and a floor slab, wherein the building original data comprises the floor number, the floor height and the like;
step S2: acquiring point cloud data of a building, and constructing a building point cloud database;
step S3: building point cloud data processing, namely merging and splicing all point cloud data and carrying out coordinate conversion to obtain point cloud data under an absolute coordinate system, and classifying and naming the point cloud data according to floors as A1, A2, A3 and A4 …;
step S4: information fusion, namely importing point cloud data A1, A2, A3 and A4 … into a network model;
step S5: modeling is carried out according to the fused information of S4, and a modularization modeling process is carried out by taking the floor as a unit and based on point cloud data A1, A2, A3, A4 and the like.
2. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: the building raw data can be any one of a building construction drawing or an electronic edition of a building design drawing.
3. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: the point cloud data is obtained by a satellite remote sensing technology, the spatial resolution of a remote sensing image is required to be more than 0.5 m, and the point cloud data at least comprises R, G, B wave bands including WorldView-2 remote sensing satellite data and Chinese Hi-Jing I remote sensing satellite data.
4. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: the point cloud data includes locations of architectural surface members.
5. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: the remote sensing image is processed by adopting software PCI Geomatca to obtain point cloud data.
6. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: and processing the point cloud data by adopting software PCL, and converting an absolute coordinate system of the point cloud data.
7. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: the modeling software comprises Revit software, and the modeling process carries out layer-by-layer modeling according to the point cloud data.
8. The building modeling method based on BIM modular modeling as claimed in claim 1, wherein: the invention also comprises a data input device for inputting the original data of the building; a modeling means; used for building a building network model; the data acquisition device is used for acquiring building point cloud data; the data processing device is used for processing the point cloud data; and the comprehensive processing device is used for fusing and modeling data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116150855A (en) * | 2023-04-04 | 2023-05-23 | 深圳大学 | Building component assembling analysis method and system based on point cloud wire frame constraint |
| CN116342075A (en) * | 2023-05-29 | 2023-06-27 | 南京长江都市建筑设计股份有限公司 | Intelligent building integrated cooperative big data processing method |
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| CN110608683A (en) * | 2019-08-06 | 2019-12-24 | 同济大学 | Quality evaluation method for large-size building component combining laser scanner and BIM |
| CN111340953A (en) * | 2020-02-14 | 2020-06-26 | 北京中外建建筑设计有限公司 | Method for realizing engineering design by combining point cloud data with building model |
| CN113051652A (en) * | 2021-04-12 | 2021-06-29 | 中国建筑第八工程局有限公司 | Engineering reconstruction and extension method based on BIM and three-dimensional scanning reverse modeling technology |
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- 2021-12-20 CN CN202111565699.2A patent/CN114359478A/en active Pending
Patent Citations (4)
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| CN110309618A (en) * | 2019-07-10 | 2019-10-08 | 中煤航测遥感集团有限公司 | Modeling method, model building device and the modeling of Building Information Model |
| CN110608683A (en) * | 2019-08-06 | 2019-12-24 | 同济大学 | Quality evaluation method for large-size building component combining laser scanner and BIM |
| CN111340953A (en) * | 2020-02-14 | 2020-06-26 | 北京中外建建筑设计有限公司 | Method for realizing engineering design by combining point cloud data with building model |
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| CN116150855A (en) * | 2023-04-04 | 2023-05-23 | 深圳大学 | Building component assembling analysis method and system based on point cloud wire frame constraint |
| CN116342075A (en) * | 2023-05-29 | 2023-06-27 | 南京长江都市建筑设计股份有限公司 | Intelligent building integrated cooperative big data processing method |
| CN116342075B (en) * | 2023-05-29 | 2023-09-08 | 南京长江都市建筑设计股份有限公司 | Intelligent building integrated cooperative big data processing method |
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