CN111080771A - Information model construction method applied to three-dimensional intelligent aided design - Google Patents
Information model construction method applied to three-dimensional intelligent aided design Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/08—Indexing scheme for image data processing or generation, in general involving all processing steps from image acquisition to 3D model generation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention relates to the field of power grid information model aided design, and the data of the existing power grid model can not be fully utilized; the true phase mode comprises a high-true three-dimensional model and a low-true three-dimensional model; constructing a standard model library by using a low-fidelity three-dimensional model of a plurality of sub-models in the power grid model and corresponding object modes and abstract modes of the low-fidelity three-dimensional model; the method for assisting the design of the power grid model comprises the steps of constructing or expanding a standard model base through a high-fidelity three-dimensional model of each sub-model in the power grid model; the power grid is designed by using a standard model library and converted into a high-fidelity three-dimensional model corresponding to the power grid model; the utilization rate of the power grid model data can be increased, and help is provided for subsequent power grid design.
Description
Technical Field
The invention relates to the field of power grid information model aided design, in particular to an information model construction method applied to three-dimensional intelligent aided design.
Background
In order to realize a digital design concept of the power grid, an enterprise internal digital framework system is established, most power grids are designed by adopting highly real three-dimensional modeling, and the model using the modeling mode comprises attribute information, model granularity and other data. The adoption of the high-fidelity three-dimensional model (hereinafter referred to as a high-fidelity three-dimensional model) not only has large workload and high modeling difficulty, but also increases more design workload and design cost, and has lower application degree in the following engineering construction stage, operation and maintenance stage and other life cycle links. And each power grid project is repeatedly modeled, so that the workload is large and the efficiency is low.
Therefore, the problem of how to effectively utilize the highly real three-dimensional model data in the subsequent engineering and the problem of reutilization in the subsequent power grid engineering modeling are urgently needed to be solved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an information model construction method applied to three-dimensional intelligent aided design.
In order to achieve the purpose, the invention is realized by the following technical scheme: an information model construction method applied to three-dimensional intelligent aided design is used for constructing a power grid model, wherein the power grid model is constructed by a plurality of sub-models, the sub-models present the modes corresponding to the stages in different design stages or different engineering stages, and the modes comprise a true image mode, an image mode and an abstract mode; the true phase modes comprise a high-true three-dimensional model and a low-true three-dimensional model; the high-fidelity three-dimensional model has the same structure, material properties and surface textures as the real object, and is generated by modeling and rendering the real object through three-dimensional software; the low-fidelity three-dimensional model has the same structure as a real object and is generated by modeling or carrying out lightweight processing on the high-fidelity three-dimensional model; the appearance mode is presented by a line structure and is generated after line processing is carried out on the low-fidelity three-dimensional model; the abstract mode is formed by symbols or graphs with a three-dimensional structure and is generated after the model of the object is simplified; constructing a standard model library by using a low-fidelity three-dimensional model of a plurality of sub-models in the power grid model and corresponding object modes and abstract modes of the low-fidelity three-dimensional model; the method for assisting the power grid model design comprises the steps of constructing or expanding a standard model base through a high-fidelity three-dimensional model of each sub-model in the power grid model; and the power grid design is assisted by applying a standard model library and the power grid is converted into a high-fidelity three-dimensional model corresponding to the power grid model.
According to the technical scheme, the high-fidelity three-dimensional model of each sub-model in the power grid model is converted into the low-fidelity three-dimensional model, the image-bearing mode and the abstract mode, and the standard model library is constructed, so that on one hand, the data of the high-fidelity three-dimensional model can be effectively utilized, models of other modes are generated for the subsequent engineering stage, and the highly-real three-dimensional model data can be effectively utilized in the subsequent engineering; on the other hand, the constructed standard model library can provide help for the next power grid engineering design, assist the power grid model design process and reduce the workload of the power grid model in establishing the high-fidelity three-dimensional model.
The further preferable scheme of the invention is as follows: the step of constructing or expanding the standard model library through the high-fidelity three-dimensional model of the sub-model in the power grid model comprises a1, respectively converting the high-fidelity three-dimensional model of the sub-model forming the power grid model into a low-fidelity three-dimensional model; step a2, carrying out multi-stage classification on the transformed low-fidelity three-dimensional models of each sub-model and marking according to classification levels; a3, respectively searching the classification labels of the low-fidelity three-dimensional models in the step 2 according to the corresponding classification levels in a standard model library; if the standard model library does not have the classification mark, performing the step a4 until the standard model library comprises the low-fidelity three-dimensional models of all sub-models in the power grid model, and completing the construction or extension of the standard model library; step a4, newly adding the classification mark of the level in the standard model library and recording the low-fidelity three-dimensional model corresponding to the mark.
The further preferable scheme of the invention is as follows: the high-fidelity three-dimensional model is formed by 3dmax software live-action modeling and rendering, and model files HReal-AIM and material report files are respectively formed in storage; the low-fidelity three-dimensional model is formed by carrying out lightweight processing on the high-fidelity three-dimensional model through 3dmax software, and a model file LReal.
The further preferable scheme of the invention is as follows: and when the high-fidelity three-dimensional model or the low-fidelity three-dimensional model is subjected to weight reduction processing through 3dmax software, a model file REP. AIM representing an image mode and a model file ABS. AIM representing an abstract mode are also generated.
The further preferable scheme of the invention is as follows: the model file LReal. AIM can be reversely converted into the model file HReal. AIM in the 3dmax software in cooperation with the material report file.
In conclusion, the invention has the following beneficial effects: on one hand, the data of the high-fidelity three-dimensional model can be effectively utilized to generate models of other modes for the subsequent engineering stage, so that the high-fidelity three-dimensional model data can be effectively utilized in the subsequent engineering; on the other hand, the constructed standard model library can provide help for the next power grid engineering design, assist the power grid model design process and reduce the workload of the power grid model in establishing the high-fidelity three-dimensional model.
Drawings
FIG. 1 is a schematic diagram of the construction paths of the models in the present invention.
Fig. 2 is a high-fidelity three-dimensional model of a power transformation device.
Fig. 3 is a low fidelity three dimensional model of a power transformation device.
Fig. 4 is an image mode of a power transformation apparatus.
Fig. 5 is an abstract modality of a power transformation apparatus.
FIG. 6 is a schematic diagram of the structure of a standard model library constructed in the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The invention provides an information model construction method applied to three-dimensional intelligent aided design, which is used for constructing a power grid model, wherein the power grid model is constructed by a plurality of sub-models, and the sub-models comprise a station equipment model and a power transmission line model.
The sub-model presents the modalities corresponding to the stage in different design stages or different engineering stages, wherein the modalities comprise a real image modality, an image modality and an abstract modality.
The true phase modalities include a high true three-dimensional model and a low true three-dimensional model. The high-fidelity three-dimensional model has the same structure, material properties and surface textures as the real object, and is generated by modeling and rendering the real object through three-dimensional software. The low-fidelity three-dimensional model has the same structure as a real object and is generated through modeling or after lightweight processing of the high-fidelity three-dimensional model. The appearance mode is presented by a line structure and is generated by line processing of the low-fidelity three-dimensional model. The abstract mode is composed of symbols or figures with a three-dimensional structure and is generated by simplifying the model mode of the abstract mode.
And constructing a standard model library by using a low-fidelity three-dimensional model of a plurality of sub-models in the power grid model and corresponding appearance modes and abstract modes of the low-fidelity three-dimensional model. The method for assisting the design of the power grid model comprises the steps of constructing or expanding a standard model base through the high-fidelity three-dimensional model of each sub-model in the power grid model, and assisting the power grid design and converting the power grid into the high-fidelity three-dimensional model corresponding to the power grid model by applying the standard model base.
The step of constructing or augmenting the standard model library with a high-fidelity three-dimensional model of a sub-model within the grid model comprises,
a1, respectively converting high-true three-dimensional models of the submodels forming the power grid model into low-true three-dimensional models;
step a2, carrying out multi-stage classification on the transformed low-fidelity three-dimensional models of each sub-model and marking according to classification levels;
a3, respectively searching the classification labels of the low-fidelity three-dimensional models in the step 2 according to the corresponding classification levels in a standard model library; if the standard model library does not have the classification mark, performing the step a4 until the standard model library comprises the low-fidelity three-dimensional models of all sub-models in the power grid model, and completing the construction or extension of the standard model library;
step a4, newly adding the classification mark of the level in the standard model library and recording the low-fidelity three-dimensional model corresponding to the mark.
As shown in fig. 1-5, in the above steps, the high-fidelity three-dimensional model is formed by 3dmax software live-action modeling and rendering, and model files hreal. The low-fidelity three-dimensional model is formed by carrying out lightweight processing on the high-fidelity three-dimensional model through 3dmax software, and forms a model file LReal.
And when the high-fidelity three-dimensional model or the low-fidelity three-dimensional model is subjected to weight reduction processing through 3dmax software, a model file REP. AIM representing an image mode and a model file ABS. AIM representing an abstract mode are also generated.
The model file LReal. AIM can be reversely converted into the model file HReal. AIM in the 3dmax software in cooperation with the material report file.
In the subsequent design process, the model can be subjected to weight reduction processing through 3dmax software to form LReal. AIM (low true three-dimensional model) or REP. AIM (imaging modality) and export DWG, and the exported model and HReal. AIM level material report file are jointly used for other platforms such as Revit to carry out three-dimensional design. After the three-dimensional design is finished, the design result comprises that the material report file can be imported into 3dmax software through DWG or FBX format for automatic rendering, and the subsequent construction, operation and maintenance and other stage application are facilitated.
As shown in fig. 6, the relationship between a high true three-dimensional model, a low true three-dimensional model, an avatar modality, and an abstract modality is shown. Each sub-model can form three modes, and an engineering AIM (power grid model) is formed by designing a plurality of sub-models through conversion and lightweight, forming a whole body (namely forming a model file LReal. AIM of the power grid model) and then converting the model file HReaI. AIM.
For example, the transformer is represented by a symbol or graph with a three-dimensional structure in an abstract mode, (for example, fig. 5), since the symbol or graph with the three-dimensional structure is used for representing, cables of the transformer can be layered according to height in space, and when lines among a plurality of devices need to be crossed, the cables can also be layered and routed in space, so that more information can be displayed compared with a planar drawing.
The image models of the transformers are different under different voltage levels and different working types, the same transformer is not used by equipment manufacturers, and the appearance of the transformer is slightly different even if the transformer is of the same model, so that the low-fidelity three-dimensional model and the high-fidelity three-dimensional model of the transformer under the same image model are also the same. Similarly, the same is true for other devices, and thus the correspondence between devices in different modalities is referred to fig. 2-5.
The step of assisting the design of the power grid and converting into a high-fidelity three-dimensional model of the corresponding power grid model by applying the standard model library comprises,
step b 1: selecting an image mode or an abstract mode of a sub-model required for constructing the power grid model from a standard model library, and forming the power grid model into the image mode or the abstract mode;
step b 2: determining the type and parameters of each sub-model according to engineering requirements, and selecting a low-fidelity three-dimensional model which meets the type and parameters one by one from a standard model library to replace the image mode or abstract mode of the sub-model of the power grid model; if the standard model library quasi lacks the low-fidelity three-dimensional models of the types and the parameters, modeling the missing low-fidelity three-dimensional models in the standard model library; until the image mode or abstract mode of each sub-model in the power grid model is replaced;
step b 3: and setting material attributes and surface texture parameters for parts of the low-fidelity three-dimensional model of each sub-model in the power grid model, and then performing high-precision rendering to generate a high-fidelity three-dimensional model.
The meaning of coincidence in step b2 includes full coincidence and approximate coincidence, which means that the degree of coincidence of the type and the parameter reaches a prescribed value; when the three-dimensional models are completely conformed to each other, the corresponding image-bearing mode or abstract mode is directly replaced by the low-fidelity three-dimensional model in the standard library; when the models are approximately matched, the low true three-dimensional model with the highest coincidence degree in the standard library is selected and modified.
And e, for the low-fidelity three-dimensional model modeled or modified in the step b2, adding a mark corresponding to the classification level in the standard model library one by one and recording the low-fidelity three-dimensional model.
The power transmission line model comprises a cable model and an iron tower model. The low-fidelity three-dimensional model line processing method for the power transmission line model comprises the following steps,
step c 1: neglecting the colors of all parts in the low-fidelity three-dimensional model;
step c 2: simplifying a cable model, and replacing a group of cables which are parallel to each other and have the distance within the range of X by one cable;
step c 3: simplifying the iron tower model, forming steel lines of the iron tower into strips, replacing steel with the same length, and neglecting parts with the volume smaller than Y.
The image mode simplifying processing method for the power transmission line model is as follows,
step d 1: the appearance mode of the iron tower is further reduced, and vertical line segments are used for replacing the appearance mode;
step d 2: and grouping the cable image modes on the iron tower, wherein the image modes of the cables in each group are sequentially arranged in the vertical direction.
Claims (6)
1. An information model construction method applied to three-dimensional intelligent aided design is used for constructing a power grid model and is characterized in that the power grid model is constructed by a plurality of sub-models, the sub-models present the modes corresponding to the stages at different design stages or different engineering stages, and the modes comprise a true image mode, an image mode and an abstract mode;
the true phase modes comprise a high-true three-dimensional model and a low-true three-dimensional model;
the high-fidelity three-dimensional model has the same structure, material properties and surface textures as the real object, and is generated by modeling and rendering the real object through three-dimensional software;
the low-fidelity three-dimensional model has the same structure as a real object and is generated by modeling or carrying out lightweight processing on the high-fidelity three-dimensional model;
the appearance mode is presented by a line structure and is generated after line processing is carried out on the low-fidelity three-dimensional model;
the abstract mode is formed by symbols or graphs with a three-dimensional structure and is generated after the model of the object is simplified;
constructing a standard model library by using a low-fidelity three-dimensional model of a plurality of sub-models in the power grid model and corresponding object modes and abstract modes of the low-fidelity three-dimensional model;
the method for assisting in the design of a power grid model comprises,
constructing or expanding a standard model library through a high-fidelity three-dimensional model of each sub-model in the power grid model;
and the power grid design is assisted by applying a standard model library and the power grid is converted into a high-fidelity three-dimensional model corresponding to the power grid model.
2. The information model construction method according to claim 1, wherein the step of constructing or augmenting the standard model library by a high-fidelity three-dimensional model of a sub-model within the power grid model comprises,
a1, respectively converting high-true three-dimensional models of the submodels forming the power grid model into low-true three-dimensional models;
step a2, carrying out multi-stage classification on the transformed low-fidelity three-dimensional models of each sub-model and marking according to classification levels;
a3, respectively searching the classification labels of the low-fidelity three-dimensional models in the step 2 according to the corresponding classification levels in a standard model library; if the standard model library does not have the classification mark, performing the step a4 until the standard model library comprises the low-fidelity three-dimensional models of all sub-models in the power grid model, and completing the construction or extension of the standard model library;
step a4, newly adding the classification mark of the level in the standard model library and recording the low-fidelity three-dimensional model corresponding to the mark.
3. The information model construction method according to claim 2, wherein the high-fidelity three-dimensional model is formed by 3dmax software live-action modeling and rendering, and a model file HReal.AIM and a material report file are respectively formed during storage; the low-fidelity three-dimensional model is formed by carrying out lightweight processing on the high-fidelity three-dimensional model through 3dmax software, and a model file LReal.
4. The information model construction method according to claim 3, wherein a model file rep. aim representing an avatar modality and a model file abs. aim representing an abstract modality are also generated when the high-fidelity three-dimensional model or the low-fidelity three-dimensional model is subjected to weight reduction processing by 3dmax software.
5. The information model building method of claim 4, wherein the model file LReal.
6. The information model construction method according to claim 2, wherein the step of assisting the grid design and converting into a high-fidelity three-dimensional model of the corresponding grid model by applying a standard model library comprises,
step b 1: selecting an image mode or an abstract mode of a sub-model required for constructing the power grid model from a standard model library, and forming the power grid model into the image mode or the abstract mode;
step b 2: determining the type and parameters of each sub-model according to engineering requirements, and selecting a low-fidelity three-dimensional model which meets the type and parameters one by one from a standard model library to replace the image mode or abstract mode of the sub-model of the power grid model; if the standard model library quasi lacks the low-fidelity three-dimensional models of the types and the parameters, modeling the missing low-fidelity three-dimensional models in the standard model library; until the image mode or abstract mode of each sub-model in the power grid model is replaced;
step b 3: and setting material attributes and surface texture parameters for parts of the low-fidelity three-dimensional model of each sub-model in the power grid model, and then performing high-precision rendering to generate a high-fidelity three-dimensional model.
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