A method and device for three-dimensional forward drawing of electrical professional based on three-dimensional design of substation

Abstract

The present application discloses a method and device for three-dimensional forward drawing of electrical specialty based on three-dimensional design of substation, which relates to the field of forward drawing of three-dimensional models. The method includes obtaining a three-dimensional model of a substation project and performing data preprocessing, determining the type of drawings to be drawn, and determining the drawing drawing range, and then determining that the drawing drawing range corresponds to the range to be cut of the preprocessed three-dimensional model of the substation project; extracting the annotation data within the range to be cut of the preprocessed three-dimensional model of the substation project; determining that the preprocessed three-dimensional model of the substation project corresponds to the drawing expression graphics within the drawing drawing range; automatically annotating the annotation data within the corresponding range to be cut in the drawing expression graphics, and obtaining the forward drawing of the three-dimensional model of the substation project. The drawing method based on the present application can improve the quality and efficiency of forward drawing.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional model drawing, and in particular to a three-dimensional forward drawing method and device for electrical engineering based on three-dimensional substation design. Background Art

[0002] In the 3D drawing stage, the latest version of the State Grid Design Guidelines Q / GDW 11798.1-2023 further clarifies the requirements for forward drawing from 3D models, based on the original requirement that only section views can be derived from 3D models. This proves that the realization of 3D forward drawing and the whole process of 3D forward drawing are inevitable trends in the future. However, in addition to the problems of perspective relationship display, annotations, drawing frames, current and long-term display, the current 3D model section drawing content also requires manual selection of section position and section range, and repeated adjustments to achieve drawing, resulting in the inability to guarantee the quality and efficiency of drawing. Summary of the invention

[0003] The purpose of this application is to provide a method and device for three-dimensional forward drawing of electrical professionals based on three-dimensional design of substations, which can improve the quality and efficiency of forward drawing.

[0004] To achieve the above objectives, this application provides the following solutions:

[0005] In a first aspect, the present application provides a method for 3D forward drawing of electrical professional based on 3D design of substation, comprising:

[0006] Acquire a three-dimensional model of a power substation project, and perform data preprocessing on the three-dimensional model of the power substation project to obtain a preprocessed three-dimensional model of the power substation project;

[0007] Determine the type of drawings to be produced, and determine the scope of drawings to be produced according to the type of drawings;

[0008] According to the drawing output range, the geometric features and business attribute features of the preprocessed three-dimensional model of the substation engineering, determining that the drawing output range corresponds to the to-be-sectioned range of the preprocessed three-dimensional model of the substation engineering;

[0009] Extracting annotation data within the to-be-cut range of the preprocessed three-dimensional model of the substation engineering project according to preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing output range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute features;

[0010] Determine that the preprocessed three-dimensional model of the substation engineering corresponds to a drawing expression graphic within the drawing output range;

[0011] The annotated data in the corresponding range to be cut is automatically annotated in the drawing expression graphic to obtain a forward output drawing of the three-dimensional model of the substation project.

[0012] In a second aspect, the present application provides a three-dimensional forward drawing device for electrical professional based on three-dimensional design of substation, comprising:

[0013] A model data preprocessing module is used to obtain a three-dimensional model of a substation project, and perform data preprocessing on the three-dimensional model of the substation project to obtain a preprocessed three-dimensional model of the substation project;

[0014] A drawing output range determination module is used to determine the drawing type to be output, and determine the drawing output range according to the drawing type;

[0015] A model to-be-sectioned range determination module is used to determine the to-be-sectioned range of the drawing output range corresponding to the preprocessed three-dimensional model of the substation engineering according to the drawing output range, the geometric features and business attribute features of the preprocessed three-dimensional model of the substation engineering;

[0016] A model annotation data extraction module is used to extract annotation data within the to-be-cut range of the preprocessed substation engineering three-dimensional model according to preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing output range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute features;

[0017] A graphics conversion module, used to determine that the pre-processed three-dimensional model of the substation engineering corresponds to a drawing expression graphic within the drawing output range;

[0018] The automatic marking module is used to automatically mark the corresponding marking data within the range to be cut in the drawing expression graphics, and obtain the forward output of the three-dimensional model of the substation project.

[0019] In the third aspect, the present application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-mentioned method for three-dimensional forward drawing of electrical professionals based on three-dimensional design of substation.

[0020] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-mentioned method for three-dimensional forward drawing of electrical professionals based on three-dimensional substation design.

[0021] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for three-dimensional forward drawing of electrical professionals based on three-dimensional substation design.

[0022] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0023] The present application provides a method and device for three-dimensional forward drawing of electrical engineering based on three-dimensional design of substation. Through data preprocessing, the geometric information of the model is simplified and redundant data is removed while retaining the accuracy required for drawing extraction information of the three-dimensional model, so as to obtain the most concise data for forward drawing, reduce the amount of data required for subsequent drawing processing, improve the efficiency of forward drawing information extraction, and improve drawing efficiency. By determining the type of drawing to be drawn, and then determining the drawing drawing range, and further determining the range to be cut of the preprocessed three-dimensional model of the substation engineering corresponding to the drawing drawing range, it is possible to determine the position and range to be cut of the three-dimensional model according to the drawing type, which improves the accuracy and efficiency of drawing compared to the existing manual determination of the cutting position and cutting range. By extracting the annotation data within the range to be cut of the three-dimensional model corresponding to the drawing drawing range, and then exporting the graphic information of the drawing, the extracted annotation data is automatically annotated on the graphic, which improves the efficiency of drawing compared to the existing manual annotation. Based on the drawing method of the present application, it is possible to extract the drawing range from the three-dimensional model of the substation project according to the drawing expression requirements, pre-process the three-dimensional model within the drawing range, extract the drawing features and complete automatic annotation post-processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is an application environment diagram of an electrical professional three-dimensional forward drawing method based on three-dimensional substation design in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of a technical route for a three-dimensional forward drawing method for electrical professional based on three-dimensional design of substations provided in one embodiment of the present application;

[0027] Figure 3 A schematic flow chart of a method for three-dimensional forward drawing of electrical professional based on three-dimensional design of substation provided in one embodiment of the present application;

[0028] Figure 4A schematic diagram of the functional modules of a three-dimensional forward drawing device for electrical professionals based on three-dimensional design of substations provided in one embodiment of the present application;

[0029] Figure 5 A schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] The electrical professional 3D forward drawing method based on the 3D design of substation provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown, the terminal communicates with the server through the network. The data storage system can store the data of the server. The data storage system can be set up separately, integrated on the server, or placed on the cloud or other servers. The terminal obtains a substation engineering 3D model to be processed on a server, performs data preprocessing on the substation engineering 3D model, and obtains a preprocessed substation engineering 3D model; determines the type of drawing to be drawn, and determines the drawing drawing range according to the drawing type; determines the drawing drawing range corresponding to the preprocessed substation engineering 3D model to be cut according to the drawing drawing range, the geometric features and business attribute features of the preprocessed substation engineering 3D model; extracts the annotation data within the preprocessed substation engineering 3D model to be cut according to the preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing drawing range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute features; determines that the preprocessed substation engineering 3D model corresponds to the drawing expression graphics within the drawing drawing range; automatically annotates the annotation data within the corresponding range to be cut in the drawing expression graphics, and obtains the forward drawing of the substation engineering 3D model. The terminal can feed back the obtained forward drawing of the substation engineering 3D model to the server for storage.

[0033] The terminal may be, but is not limited to, various desktop computers and laptop computers, and the server may be implemented as an independent server or a server cluster consisting of multiple servers, or may be a cloud server.

[0034] In an exemplary embodiment, Figure 2 and Figure 3 As shown, a method for 3D forward drawing of electrical professional based on 3D design of substation is provided, which is executed by a computer device and applied to Figure 1 The terminal in is used as an example for description, including the following steps.

[0035] Step 101, obtaining a three-dimensional model of a substation project, and performing data preprocessing on the three-dimensional model of the substation project to obtain a preprocessed three-dimensional model of the substation project.

[0036] The three-dimensional model of the substation project can be modeled on the BIM platform.

[0037] Taking advantage of the computer's data processing advantages, the three-dimensional model information of the substation project is preprocessed to simplify the expression of redundant data irrelevant to the drawing and improve the efficiency of the forward drawing. The computer has built-in inspection rules, which are derived from the three-dimensional design modeling specifications of the transmission and transformation project and the key annotation line information known for the drawing (the key annotation line information required for the drawing). In step 101, the three-dimensional model of the substation project is preprocessed to obtain the preprocessed three-dimensional model of the substation project, which specifically includes:

[0038] (1) Removing the internal contours in the geometric structure of the substation equipment model in the three-dimensional model of the substation project.

[0039] Substation simplifies the geometric structure of the equipment model, removes the internal outline of the equipment, and reduces the amount of model data to facilitate subsequent processing and analysis. The main equipment of the substation project includes: main transformer equipment, GIS equipment, lightning arrester, switch cabinet, capacitor, grounding transformer and complete set of equipment.

[0040] (2) Converting the arc geometric expression of the substation equipment model in the three-dimensional model of the substation project into a polygonal expression.

[0041] Optimize geometric shapes. Simplify the arc geometry of the substation equipment model and convert the arc into a polygon. The arc is an object with countless points, while the polygon is a finite number of points. The substation equipment model has a large number of arc-shaped surface appearances. After optimizing the arc shape, while ensuring that the key features are not distorted, the amount of data to be processed can be reduced during subsequent drawing conversion, compressing the graphics processing time.

[0042] (3) Performing a quality check on the three-dimensional model of the substation project; the pre-processed three-dimensional model of the substation project refers to the three-dimensional model of the substation project obtained after removing the internal contour, converting the arc geometric expression, and undergoing quality inspection.

[0043] Check the quality of the model to ensure that the model meets the relevant specifications for substation 3D design. Check whether it contains the necessary component division and key annotation line information for drawing. Ensure that the model has no errors and omissions of key feature information for drawing. Check the quality of the 3D model of the substation project, including:

[0044] (i) Performing a quality check on the three-dimensional model of the power transmission and transformation project according to the three-dimensional design modeling specification of the power transmission and transformation project.

[0045] The 3D design modeling specification for power transmission and transformation projects has clear requirements for the geometric features and properties of 3D design (equipment modeling); the model is compared with the specification requirements in the computer built-in modeling specification to obtain the result of compliance. The requirements for the geometric fineness and property fineness of each type of equipment in the 3D design modeling specification for power transmission and transformation projects can be referred to Appendix B (Normative) Electrical Equipment Model Fineness in the 3D Design Modeling Specification for Power Transmission and Transformation Projects.

[0046] (ii) determining whether the three-dimensional model of the substation engineering project contains necessary components and annotation line information for drawing.

[0047] During 3D modeling, the location of equipment components and related dimensions and other information will be marked. This information is reflected by setting annotation lines. Therefore, during quality inspection, check whether there are annotation lines required for drawing and key components of the equipment.

[0048] Step 102, determining the drawing type to be output, and determining the drawing output range according to the drawing type.

[0049] The drawing type and the drawing output range are pre-set and pre-matched; different drawing types correspond to different drawing output ranges. For example, if the drawing type is a 110kV outgoing line interval cross-sectional view, the corresponding drawing output range is the substation equipment model of the 110kV outgoing line interval; for example, if the drawing type is a 220kV outgoing line interval cross-sectional view, the corresponding drawing output range is the substation equipment model of the 220kV outgoing line interval.

[0050] Step 103, determining the drawing output range corresponding to the to-be-cut range of the preprocessed three-dimensional model of the substation engineering according to the drawing output range, the geometric features and the business attribute features of the preprocessed three-dimensional model of the substation engineering.

[0051] According to the drawing type, the drawing output range is analyzed, and the corresponding model range (section range) is extracted by matching the model geometric features and business attribute features, so as to determine the drawing output range and extract the section from the model. Among them, the business attribute refers to the attribute information associated with the model. In the 3D design modeling specification of power transmission and transformation engineering, the attribute detail of each type of equipment is specified.

[0052] Different drawing types correspond to different cutting positions and cutting ranges of 3D models. After the drawing type is determined, the corresponding drawing output range is determined, and then the cutting range corresponding to the 3D model can be determined. Therefore, the cutting range of the 3D model can be matched by selecting the drawing type. Compared with the existing drawing output method of manually selecting the cutting position and cutting range, the drawing output quality is high and the drawing output efficiency is high.

[0053] Step 104, extracting the annotation data within the to-be-cut range of the preprocessed three-dimensional model of the substation engineering according to preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing output range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute features.

[0054] Once the drawing type is determined, the content to be expressed, the annotation objects and the annotation content within the corresponding drawing output range are determined, and the feature information corresponding to the three-dimensional model is also determined. The corresponding annotation data is then further extracted from the three-dimensional model for subsequent integration into the graphic expression of the output.

[0055] The annotation data is extracted by mapping the content to be annotated in the drawing with the characteristic information on the 3D model. For example, the dimension annotation in the drawing must match the annotation line characteristics on the 3D model; the text annotation of the equipment name in the drawing must match the engineering system name in the business attribute information on the 3D model. By using the fusion recognition and extraction technology of the substation engineering model construction drawing graphics, text, and digital data, information from different sources can be comprehensively and efficiently utilized.

[0056] Step 105, determining that the pre-processed three-dimensional model of the substation engineering corresponds to a drawing expression graphic within the drawing output range.

[0057] Based on the preprocessed three-dimensional model of the substation project and the extracted drawing output range, a forward output content conversion from the three-dimensional model to the drawing expression is performed to obtain the drawing expression graphics.

[0058] Step 106, automatically marking the corresponding annotation data within the to-be-cut range in the drawing expression graphic, and obtaining a forward output drawing of the three-dimensional model of the substation project.

[0059] The key information of the objects in the drawing is marked based on the extracted annotation data.

[0060] In this application, the presence of equipment components and key annotation information is checked, and then the annotation information is extracted, and finally the extracted annotation information is automatically annotated to the graphic objects of the drawing, thereby realizing automatic annotation. Compared with the existing drawing output method, the manual annotation method has high drawing output efficiency.

[0061] Step 105 corresponds to step 106 Figure 2 Post-processing of drawings in .

[0062] After executing step 106, the electrical professional 3D forward drawing method based on substation 3D design further includes:

[0063] Step 107, verifying the forward output drawing to check the completeness, accuracy and clarity of the forward output drawing.

[0064] Check the output elements on the output drawings. For example, the output elements of the interval section drawing include: drawing scope, equipment material table, wiring diagram, and drawing description; the output elements of the electrical master plan include drawing scope, equipment legend table, and drawing description. By checking the output elements, determine the completeness, accuracy, and clarity of the output drawing information.

[0065] By implementing the above-mentioned steps 101 to 107, compared with the prior art, the present application opens up the forward drawing process of the substation from modeling to drawing, improves the standardization of the three-dimensional design results of the design unit, shortens the construction period, reduces costs, and improves the design quality and efficiency. Among them, through data preprocessing, the three-dimensional model retains the accuracy required for drawing extraction information, simplifies the geometric information of the three-dimensional model, removes redundant data, and obtains the most streamlined data for forward drawing, and subsequently extracts feature information, designs transformation algorithms and post-processing to improve the efficiency of forward drawing information extraction. Key feature extraction and annotation (step 104), by using the substation engineering model construction drawing graphics, text, digital data fusion recognition and extraction technology, can comprehensively and efficiently utilize information from different sources to improve the accuracy and robustness of feature recognition. The present application fully considers the current status of substation three-dimensional design, extracts drawing elements from the three-dimensional model, further performs data processing, and finally realizes the standardization of the three-dimensional forward drawing process and the standardization of the three-dimensional drawing effect.

[0066] The present application also provides an application scenario, which applies the above-mentioned three-dimensional forward drawing method for electrical professionals based on three-dimensional design of substations. Specifically: the three-dimensional forward drawing method for electrical professionals based on three-dimensional design of substations provided in this embodiment can be applied in a three-dimensional model drawing scenario. The scenario includes a three-dimensional model design link and a three-dimensional model drawing link; the three-dimensional model design link is used to use three-dimensional model design software to design related three-dimensional models, such as the design of a three-dimensional model of a substation; the three-dimensional model drawing link is used to export corresponding two-dimensional drawings based on the three-dimensional model. The three-dimensional forward drawing method for electrical professionals based on three-dimensional design of substations provided in this embodiment belongs to the three-dimensional model drawing link.

[0067] Based on the same inventive concept, the embodiment of the present application also provides a device for implementing the above-mentioned method for 3D forward drawing of electrical engineering based on 3D design of substation. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method. Therefore, the specific limitations in one or more embodiments of the device for 3D forward drawing of electrical engineering based on 3D design of substation can be referred to the limitations of the method for 3D forward drawing of electrical engineering based on 3D design of substation, and will not be repeated here.

[0068] In an exemplary embodiment, Figure 4 As shown, a 3D forward drawing device for electrical professional based on substation 3D design is provided, comprising:

[0069] The model data preprocessing module M1 is used to obtain a three-dimensional model of a substation project and perform data preprocessing on the three-dimensional model of the substation project to obtain a preprocessed three-dimensional model of the substation project.

[0070] The drawing output range determination module M2 is used to determine the drawing type to be output, and determine the drawing output range according to the drawing type.

[0071] The model sectioning range determination module M3 is used to determine the sectioning range of the preprocessed substation project three-dimensional model corresponding to the drawing output range according to the drawing output range, the geometric characteristics and business attribute characteristics of the preprocessed substation project three-dimensional model.

[0072] The model annotation data extraction module M4 is used to extract the annotation data within the to-be-cut range of the preprocessed three-dimensional model of the substation project according to preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing output range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute characteristics.

[0073] The graphic conversion module M5 is used to determine whether the pre-processed three-dimensional model of the substation engineering corresponds to the drawing expression graphic within the drawing output range.

[0074] The automatic marking module M6 is used to automatically mark the corresponding marking data within the to-be-cut range in the drawing expression graphics, and obtain the forward output drawing of the three-dimensional model of the substation project.

[0075] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 5 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store three-dimensional forward drawing data based on the electrical specialty of the substation three-dimensional design. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a three-dimensional forward drawing method based on the electrical specialty of the substation three-dimensional design is implemented.

[0076] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components. In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0077] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0078] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0079] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0080] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0081] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0082] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A three-dimensional forward drawing method for electrical engineering based on three-dimensional design of substation, characterized in that: The electrical professional three-dimensional forward drawing method based on the three-dimensional design of substation includes: Acquire a three-dimensional model of a power substation project, and perform data preprocessing on the three-dimensional model of the power substation project to obtain a preprocessed three-dimensional model of the power substation project; Determine the type of drawings to be produced, and determine the scope of drawings to be produced according to the type of drawings; According to the drawing output range, the geometric features and business attribute features of the preprocessed three-dimensional model of the substation engineering, determining that the drawing output range corresponds to the to-be-sectioned range of the preprocessed three-dimensional model of the substation engineering; Extracting annotation data within the to-be-cut range of the preprocessed three-dimensional model of the substation engineering project according to preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing output range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute features; Determine that the preprocessed three-dimensional model of the substation engineering corresponds to a drawing expression graphic within the drawing output range; The annotated data in the corresponding range to be cut is automatically annotated in the drawing expression graphic to obtain a forward output drawing of the three-dimensional model of the substation project.

2. The electrical professional 3D forward drawing method based on substation 3D design according to claim 1 is characterized in that: The three-dimensional model of the power transformation project is subjected to data preprocessing to obtain the preprocessed three-dimensional model of the power transformation project, which specifically includes: Removing the internal contours in the geometric structure of the substation equipment model in the substation engineering three-dimensional model; Converting the arc geometric expression of the substation equipment model in the substation engineering three-dimensional model into a polygonal expression; The three-dimensional model of the substation project is subjected to a quality inspection; the three-dimensional model of the substation project after preprocessing refers to the three-dimensional model of the substation project obtained after internal contour removal, arc geometric expression conversion and quality inspection.

3. The electrical professional 3D forward drawing method based on substation 3D design according to claim 2 is characterized in that: Performing a quality check on the three-dimensional model of the substation project, specifically including: According to the three-dimensional design modeling specifications for power transmission and transformation projects, quality inspection is performed on the three-dimensional model of the power transformation project; Determine whether the three-dimensional model of the substation project contains necessary components and annotation line information for drawing.

4. The electrical professional 3D forward drawing method based on substation 3D design according to claim 1 is characterized in that: The drawing type and the drawing output range are preset and pre-matched; different drawing types correspond to different drawing output ranges.

5. The electrical professional 3D forward drawing method based on substation 3D design according to claim 1 is characterized in that: After executing the step of "automatically marking the corresponding annotation data within the to-be-sectioned range in the drawing expression graphic to obtain the forward drawing of the three-dimensional model of the substation engineering", the three-dimensional forward drawing method for electrical specialty based on the three-dimensional design of substation also includes: The forward drawing is verified to check the completeness, accuracy and clarity of the forward drawing.

6. A 3D forward drawing device for electrical engineering based on 3D substation design, characterized in that: The electrical professional three-dimensional forward drawing device based on the three-dimensional design of substation includes: A model data preprocessing module is used to obtain a three-dimensional model of a substation project, and perform data preprocessing on the three-dimensional model of the substation project to obtain a preprocessed three-dimensional model of the substation project; A drawing output range determination module is used to determine the drawing type to be output, and determine the drawing output range according to the drawing type; A model to-be-sectioned range determination module is used to determine the to-be-sectioned range of the drawing output range corresponding to the preprocessed three-dimensional model of the substation engineering according to the drawing output range, the geometric features and business attribute features of the preprocessed three-dimensional model of the substation engineering; A model annotation data extraction module is used to extract annotation data within the to-be-cut range of the preprocessed substation engineering three-dimensional model according to preset rules corresponding to the required expression content, required annotation objects, required annotation content and model feature information within the drawing output range; the annotation data includes annotation objects and annotation content; the annotation content includes geometric information and business attribute features; A graphics conversion module, used to determine that the pre-processed three-dimensional model of the substation engineering corresponds to a drawing expression graphic within the drawing output range; The automatic marking module is used to automatically mark the corresponding marking data within the range to be cut in the drawing expression graphics, and obtain the forward output of the three-dimensional model of the substation project.

7. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the electrical professional three-dimensional forward drawing method based on three-dimensional design of substation as described in any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it realizes the electrical professional three-dimensional forward drawing method based on substation three-dimensional design as described in any one of claims 1-5.

9. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, it realizes the electrical professional three-dimensional forward drawing method based on substation three-dimensional design as described in any one of claims 1-5.

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