Vehicle depot outdoor compressed air pipeline BIM forward design method and system

Abstract

The invention discloses a BIM forward design method and system for an outdoor compressed air pipeline of a vehicle depot. According to the BIM forward design method and system for the outdoor compressed air pipeline of the vehicle depot, designers can use Revit software to complete BIM forward design of the outdoor compressed air pipeline in engineering design work; a pipe network model is created by calling a parameterized family library and combining human-computer interaction, so that the modeling efficiency is improved; according to the model establishment information, an outdoor compressed air pipeline design construction drawing and a material table are automatically generated, and the design efficiency and accuracy are greatly improved; the method is combined with Revit secondary development, the design depth and working efficiency of the outdoor compressed air pipeline are improved, practicability is high, the design result is visual, and BIM forward design of the outdoor compressed air pipeline is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of BIM forward design, and in particular to a BIM forward design method and system for an outdoor compressed air pipeline of a vehicle depot. Background Art

[0002] With the continuous development of BIM technology, its role in improving design efficiency and quality has become increasingly significant. BIM applications based on traditional design models are generally guided by two-dimensional drawing. First, the two-dimensional drawings are completed, and then BIM technology is used to intervene in auxiliary design and secondary development, and then the design results are verified and the consistency of drawings and models is ensured. Under this model, the advantages of BIM technology itself cannot be fully utilized, and the design efficiency and quality are not high, and the design lacks a full life cycle perspective. Based on the shortcomings and deficiencies of the above models, a design model that overcomes the above shortcomings, BIM forward design application, was born. BIM forward design requires designers to express design intent directly in the BIM model, and to put problems in front, to achieve multi-professional collaborative design and data sharing, so as to achieve the release of productivity and the transformation of production methods.

[0003] At present, in order to improve the efficiency of BIM forward design, many software companies have developed a series of forward design software based on Revit. With the help of the more mature software products, the efficiency of BIM forward design can be greatly improved, but the relevant software is still mainly for building interior engineering. The forward design software for outdoor compressed air pipelines in vehicle depots based on Revit is still blank. At present, a large number of design works have never been separated from two-dimensional design, and three-dimensional modeling remains in the "re-molding" design based on two-dimensional drawings, which often takes a lot of time and manpower. In addition, the re-molding project from two-dimensional drawings to three-dimensional models may lose the original design intention, and the advantages of BIM models have not been fully utilized, which affects the design efficiency and engineering quality. Summary of the invention

[0004] The present application provides a BIM forward design method and system for outdoor compressed air pipelines in a vehicle depot, so as to solve the problems of large workload, low efficiency and inconsistency with design intent in the current BIM forward design of outdoor compressed air pipeline modeling.

[0005] According to the first aspect, an embodiment provides a BIM forward design method for an outdoor compressed air pipeline of a vehicle depot, the method comprising:

[0006] Determine the center path of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot, and determine the pipeline design parameters;

[0007] Create a parametric family library for outdoor compressed air pipelines based on the family template in the Revit platform;

[0008] Configure a working environment in Revit software, and create a Revit project template file based on the working environment;

[0009] Based on the determined center paths of the depot outdoor compressed air pipeline branches and trunks, pipeline design parameters, and the pre-created outdoor compressed air pipeline parametric family library, the outdoor compressed air pipeline and ancillary equipment models are established;

[0010] The constructed outdoor compressed air pipeline model is tested and pipeline model information annotation is created, and outdoor compressed air pipeline drawings and material lists are generated.

[0011] Furthermore, the central paths of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot are determined, including:

[0012] According to the air interface locations of the air compressor room, outdoor equipment, and maintenance workshop, determine the center path and specifications of the outdoor compressed air pipeline branch and draw them in Revit software;

[0013] Based on the determined center path and specifications of the outdoor compressed air pipeline branch pipes, combined with the general layout of the vehicle depot, the center path and specifications of the outdoor compressed air pipeline main pipes are determined and drawn in Revit software.

[0014] Furthermore, pipeline design parameters are determined, including:

[0015] The buried depth of pipelines shall be determined according to the current specifications, geological conditions of the site and requirements for crossing tracks; the diameter and material of each main pipe and branch pipe shall be determined according to the air volume and requirements of the current specifications.

[0016] Furthermore, a parametric family library of outdoor compressed air pipelines is created based on the family template in the Revit platform, including:

[0017] The outdoor compressed air pipeline parametric family library includes: a pipeline parametric family, a valve parametric family, an oil-water separator parametric family, a manhole parametric family, an air compressor parametric family, a dryer parametric family and an air storage tank parametric family.

[0018] Furthermore, a working environment is configured in the Revit software, and a Revit project template file based on the working environment is created, specifically including:

[0019] The working environment includes a pipeline layout drawing environment, a pipeline laying method drawing environment, an air compressor room layout environment, a three-dimensional modeling environment, and a vehicle depot general layout environment; the Revit project template file includes a pipeline system type template, a detailed drawing annotation style, a view template, and a detailed drawing annotation family.

[0020] Furthermore, a model of outdoor compressed air pipeline and auxiliary equipment is established, including:

[0021] Run the compressed air pipeline rapid modeling plug-in in Revit, complete the input of compressed air pipeline design parameter information in the plug-in's outdoor compressed air pipeline modeling data input interface, and verify the integrity and compliance of the input information;

[0022] Select the central path of the branch pipe and main pipe of the outdoor compressed air pipeline of the depot, parse the pipeline space location information and user input information, and create a transaction;

[0023] Call the Revit API line constraint in the compressed air pipeline fast modeling plug-in to establish the outdoor compressed air pipeline model;

[0024] In the interactive dialog box, by calling the accessory type and importing the positioning coordinate data and the corresponding selection file, the family instance positioning, placement and automatic numbering are automatically completed in the pipeline model;

[0025] End things and complete model building.

[0026] Furthermore, the constructed outdoor compressed air pipeline model is tested, including:

[0027] Based on the pipeline collision check function in the Revit platform, a collision check is performed on the established compressed air pipeline model, including checking whether there is a hard collision and a soft collision between the pipeline model and the inspection well model. A hard collision refers to a direct contact collision between models, and a soft collision refers to the horizontal clearance or vertical clearance between pipeline models not meeting the specification requirements. If a hard collision or a soft collision occurs, the pipeline avoidance function in the plug-in is used to make adjustments until the specification requirements are met.

[0028] Furthermore, create pipeline model information annotation, including:

[0029] Select the pipeline model and call the Revit API to extract the pipeline model information;

[0030] Load the family file of the pipe or accessory equipment that needs annotation;

[0031] Automatically modify annotation family parameter information to match the pipeline model;

[0032] Generate pipeline model annotation information, which includes pipeline nominal diameter, pipeline elevation or buried depth, pipeline system code, pipeline coordinates, equipment number, inspection well number, oil-water separator number, pipe rack structure, buried pipeline construction drawing, inspection well detailed drawing, and pipeline material table.

[0033] Furthermore, outdoor compressed air pipeline drawings and material lists are generated, including:

[0034] Create pipeline plan layout views, pipe network support cross-sectional views, buried pipeline construction drawings, and inspection well details;

[0035] Create corresponding frames according to the number and size of views;

[0036] Modify the drawing frame family parameter information and generate drawing title and drawing number;

[0037] Add the view to the drawing frame and adjust the view to the appropriate position;

[0038] Create a pipe list, calculate the pipe quantity and write it into an Excel file;

[0039] Submit the transaction to complete the creation of the pipeline network drawings and material lists.

[0040] According to the second aspect, an embodiment provides a BIM forward design system for outdoor compressed air pipelines in a vehicle depot, the system comprising:

[0041] The pipeline design module is used to determine the center path of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot, and determine the pipeline design parameters;

[0042] Parametric family library creation module, used to create a parametric family library for outdoor compressed air pipelines based on family templates in the Revit platform;

[0043] A sample file creation module, used for configuring a working environment in Revit software and creating a Revit project sample file based on the working environment;

[0044] A model building module is used to build a model of outdoor compressed air pipelines and auxiliary equipment based on the determined center paths of the outdoor compressed air pipeline branches and main pipes of the depot, pipeline design parameters, and a pre-created outdoor compressed air pipeline parametric family library;

[0045] The result processing module is used to detect the constructed outdoor compressed air pipeline model, create pipeline model information annotation, and generate outdoor compressed air pipeline drawings and material lists.

[0046] The present application provides a BIM forward design method and system for the outdoor compressed air pipeline of a vehicle depot, which determines the central path of the branch pipe and the main pipe of the outdoor compressed air pipeline of the vehicle depot, and determines the pipeline design parameters; creates a parametric family library of the outdoor compressed air pipeline based on the family template in the Revit platform; configures the working environment in the Revit software, and creates a Revit project template file based on the working environment; establishes the outdoor compressed air pipeline and ancillary equipment model based on the determined central path of the branch pipe and the main pipe of the outdoor compressed air pipeline of the vehicle depot, the pipeline design parameters and the pre-created parametric family library of the outdoor compressed air pipeline; detects the constructed outdoor compressed air pipeline model and creates pipeline model information annotation, and generates outdoor compressed air pipeline drawings and material tables. The present invention can realize the direct use of Revit software to carry out the BIM design of the outdoor compressed air pipeline of the vehicle depot, completely out of the two-dimensional design environment, and truly realize digital and visual design; the method has good versatility, strong practicality, and obvious application and promotion value; the present invention can realize a significant improvement in the modeling efficiency of the outdoor compressed air pipeline of the vehicle depot, and the modeling efficiency is improved by more than 5 times compared with manual drawing based on two-dimensional drawings in the Revit environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A flow chart of a BIM forward design method for an outdoor compressed air pipeline in a vehicle depot provided by one embodiment of the present invention;

[0048] Figure 2 A specific implementation flow chart of a BIM forward design method for outdoor compressed air pipelines in a vehicle depot provided by one embodiment of the present invention;

[0049] Figure 3 A program execution logic schematic diagram of a BIM forward design method for outdoor compressed air pipelines in a vehicle depot provided by one embodiment of the present invention;

[0050] Figure 4 A schematic diagram of the logical structure of a BIM forward design system for outdoor compressed air pipelines in a vehicle depot provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0052] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0053] The first embodiment of the present invention provides a BIM forward design method for outdoor compressed air pipelines in a vehicle depot. In the design of outdoor compressed air pipeline engineering, the entire process from the scheme stage to the construction drawing stage is completed using a BIM three-dimensional model, which can effectively improve the design efficiency and save a lot of manpower and time. Figure 1 , Figure 2 and Figure 3 Provide detailed explanation.

[0054] like Figure 1 As shown, in step S100, the center paths of the branch pipes and the main pipe of the outdoor compressed air pipeline of the vehicle depot are determined, and the pipeline design parameters are determined.

[0055] The above steps specifically include:

[0056] S110. Draw the center path of the outdoor compressed air pipeline branch pipe in Revit software according to the locations of the air interfaces of the air compressor room, outdoor equipment, and maintenance workshop;

[0057] S120. Based on the established branch pipe path and specifications and combined with the depot general layout, draw the center path of the outdoor compressed air pipeline trunk in Revit software;

[0058] S130. Determine the buried depth of pipelines according to current regulations, geological conditions of the site and requirements for crossing tracks; determine the diameter and material of each main and branch pipe according to the air volume and requirements of current regulations.

[0059] like Figure 1 As shown, in step S200, a parametric family library of outdoor compressed air pipelines is created based on the family template in the Revit platform.

[0060] Specifically, the outdoor compressed air pipeline parametric family library includes: pipeline parametric family, valve parametric family, oil-water separator parametric family, inspection well parametric family, air compressor parametric family, dryer parametric family and gas tank parametric family.

[0061] Revit models are built by combining various families. In addition to the default family library, users can also create parametric families as needed and load them into the family library for use in other projects. By changing the parameters of the family, multiple types of families can be generated to achieve the diversification of family appearance and properties, so as to achieve more flexible design.

[0062] like Figure 1 As shown, in step S300, a working environment is configured in the Revit software, and a Revit project template file based on the working environment is created.

[0063] Specifically, the Revit project template file needs to include: piping system type template, detailed drawing annotation style, view template, detailed drawing annotation family, etc.; the working environment includes: piping layout drawing environment, piping laying method drawing environment, air compressor room layout environment, 3D modeling environment, and vehicle depot general layout environment.

[0064] like Figure 1 As shown, in step S400, based on the determined central paths of the vehicle depot outdoor compressed air pipeline branches and main pipes, pipeline design parameters and a pre-created outdoor compressed air pipeline parametric family library, an outdoor compressed air pipeline and ancillary equipment model is established.

[0065] The generation logic of the outdoor compressed air pipeline in this embodiment is as follows:

[0066] 1) Run the compressed air pipeline rapid modeling plug-in in Revit, complete the compressed air pipeline data information input determined in S130 in the plug-in's outdoor compressed air pipeline modeling data input interface, and verify the integrity and compliance of the information input;

[0067] 2) Select the pipeline center path established in S110 and S120, parse the pipeline spatial location information and user input information, and create a transaction;

[0068] 3) Call the Revit API line constraint in the compressed air pipeline fast modeling plug-in to establish the outdoor compressed air pipeline model;

[0069] 4) In the interactive dialog box, by calling the types of auxiliary accessories such as inspection wells and oil-water separators, and importing the positioning coordinate data and the corresponding selection file (.xlsx), the family instance positioning, placement and automatic numbering are automatically completed in the pipeline model;

[0070] 5) End the transaction and complete the model building.

[0071] like Figure 1 As shown, in step S500, the constructed outdoor compressed air pipeline model is detected and pipeline model information annotation is created, and an outdoor compressed air pipeline drawing and a material list are generated.

[0072] The above steps specifically include:

[0073] S510. Based on the pipeline collision check function in the Revit platform, a collision check is performed on the established compressed air pipeline model, including checking whether there is a hard collision and a soft collision between the pipeline model and the inspection well model. A hard collision mainly refers to a direct contact collision between models, and a soft collision mainly refers to the horizontal clearance and vertical clearance between pipeline models not meeting the specification requirements. If a hard collision or a soft collision occurs, the pipeline avoidance function in the plug-in is used to make adjustments until the specification requirements are met.

[0074] S520. Based on the compressed air pipeline rapid modeling plug-in and the information described in S510, create pipeline model information annotation; the pipeline model information includes: pipeline nominal diameter, pipeline elevation (buried depth), pipeline system code, pipeline coordinates, equipment number, inspection well number, oil-water separator number, pipe rack structure, buried pipeline construction drawing, inspection well detailed drawing, and pipeline material table.

[0075] The generation logic of the compressed air pipeline information annotation in this embodiment is as follows:

[0076] 1) Select the pipeline model and call Revit API to extract the pipeline model information;

[0077] 2) Load the family files of pipelines, inspection wells, etc. that need to be annotated;

[0078] 3) Automatically modify the annotation family parameter information to match the pipeline model;

[0079] 4) Generate pipeline model annotation information.

[0080] S530: Based on the plug-in and the information obtained in the previous steps, create a compressed air pipeline drawing and a material list.

[0081] The generation logic of the compressed air pipeline drawing and material list in this embodiment is as follows:

[0082] 1) Create pipeline plan layout view, pipe network support cross-section view, buried pipeline construction drawing, and inspection well detail drawing;

[0083] 2) Create corresponding frames according to the number and size of views;

[0084] 3) Modify the drawing frame family parameter information and generate drawing title and drawing number;

[0085] 4) Add the view to the frame and adjust the view to the appropriate position;

[0086] 5) Create a detailed list of pipes, calculate the pipe quantities and write them into an Excel file;

[0087] 6) Submit the transaction to complete the creation of the pipeline network drawings and material lists.

[0088] In summary, the present invention enables designers to use Revit software to complete the BIM forward design of outdoor compressed air pipelines in engineering design work; by calling the parametric family library and combining human-computer interaction to create a pipe network model, the modeling efficiency is improved; according to the model establishment information, the outdoor compressed air pipeline design construction drawings and material tables are automatically generated, which greatly improves the design efficiency and accuracy; this method combines Revit secondary development to improve the design depth and work efficiency of the outdoor compressed air pipeline, has strong practicability, and the design results are intuitive, thus realizing the BIM forward design of the outdoor compressed air pipeline.

[0089] Corresponding to the above-disclosed BIM forward design method for outdoor compressed air pipelines in a vehicle depot, the embodiment of the present invention further discloses a BIM forward design system for outdoor compressed air pipelines in a vehicle depot, such as Figure 4 As shown, it specifically includes:

[0090] The pipeline design module is used to determine the center path of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot, and determine the pipeline design parameters;

[0091] Parametric family library creation module, used to create a parametric family library for outdoor compressed air pipelines based on family templates in the Revit platform;

[0092] A sample file creation module, used for configuring a working environment in Revit software and creating a Revit project sample file based on the working environment;

[0093] A model building module is used to build a model of outdoor compressed air pipelines and auxiliary equipment based on the determined center paths of the outdoor compressed air pipeline branches and main pipes of the depot, pipeline design parameters, and a pre-created outdoor compressed air pipeline parametric family library;

[0094] The result processing module is used to detect the constructed outdoor compressed air pipeline model, create pipeline model information annotation, and generate outdoor compressed air pipeline drawings and material lists.

[0095] It should be noted that, for the detailed description of the BIM forward design system for the outdoor compressed air pipeline of a vehicle depot provided in an embodiment of the present invention, reference can be made to the relevant description of the BIM forward design method for the outdoor compressed air pipeline of a vehicle depot provided in an embodiment of the present application, which will not be repeated here.

[0096] In addition, an embodiment of the present invention also provides an electronic device, comprising: a processor and a memory; the memory is used to store one or more program instructions; the processor is used to run one or more program instructions to execute the steps of a BIM forward design method for an outdoor compressed air pipeline in a vehicle section as described in any of the above items.

[0097] It should be noted that, for the detailed description of an electronic device provided in an embodiment of the present invention, reference can be made to the relevant description of a BIM forward design method for an outdoor compressed air pipeline in a vehicle section provided in an embodiment of the present application, which will not be repeated here.

[0098] In addition, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of a BIM forward design method for an outdoor compressed air pipeline in a vehicle section as described in any of the above items are implemented.

[0099] It should be noted that, for the detailed description of a computer-readable storage medium provided in an embodiment of the present invention, reference can be made to the relevant description of a BIM forward design method for an outdoor compressed air pipeline in a vehicle section provided in an embodiment of the present application, which will not be repeated here.

[0100] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above-mentioned embodiments can be implemented by hardware or by computer programs. When all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above-mentioned functions can be implemented. In addition, when all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and can be downloaded or copied and saved in the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions in the above-mentioned embodiments can be implemented.

[0101] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot, characterized in that: The method comprises: Determine the center path of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot, and determine the pipeline design parameters; Create a parametric family library for outdoor compressed air pipelines based on the family template in the Revit platform; Configure a working environment in Revit software, and create a Revit project template file based on the working environment; Based on the determined center paths of the depot outdoor compressed air pipeline branches and trunks, pipeline design parameters, and the pre-created outdoor compressed air pipeline parametric family library, the outdoor compressed air pipeline and ancillary equipment models are established; The constructed outdoor compressed air pipeline model is tested and pipeline model information annotation is created, and outdoor compressed air pipeline drawings and material lists are generated.

2. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Determine the center path of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot, including: According to the air interface locations of the air compressor room, outdoor equipment, and maintenance workshop, determine the center path and specifications of the outdoor compressed air pipeline branch and draw them in Revit software; Based on the determined center path and specifications of the outdoor compressed air pipeline branch pipes, combined with the general layout of the vehicle depot, the center path and specifications of the outdoor compressed air pipeline main pipes are determined and drawn in Revit software.

3. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Determine the pipeline design parameters, including: The buried depth of pipelines shall be determined according to the current specifications, geological conditions of the site and requirements for crossing tracks; the diameter and material of each main pipe and branch pipe shall be determined according to the air volume and requirements of the current specifications.

4. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Create a parametric family library for outdoor compressed air pipelines based on the family template in the Revit platform, including: The outdoor compressed air pipeline parametric family library includes: a pipeline parametric family, a valve parametric family, an oil-water separator parametric family, a manhole parametric family, an air compressor parametric family, a dryer parametric family and an air storage tank parametric family.

5. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Configure the working environment in Revit software and create a Revit project template file based on the working environment, including: The working environment includes a pipeline layout drawing environment, a pipeline laying method drawing environment, an air compressor room layout environment, a three-dimensional modeling environment, and a vehicle depot general layout environment; the Revit project template file includes a pipeline system type template, a detailed drawing annotation style, a view template, and a detailed drawing annotation family.

6. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Establish outdoor compressed air pipeline and auxiliary equipment model, including: Run the compressed air pipeline rapid modeling plug-in in Revit, complete the input of compressed air pipeline design parameter information in the plug-in's outdoor compressed air pipeline modeling data input interface, and verify the integrity and compliance of the input information; Select the central path of the branch pipe and main pipe of the outdoor compressed air pipeline of the depot, parse the pipeline space location information and user input information, and create a transaction; Call the RevitAPI line constraint in the compressed air pipeline fast modeling plug-in to establish the outdoor compressed air pipeline model; In the interactive dialog box, by calling the accessory type and importing the positioning coordinate data and the corresponding selection file, the family instance positioning, placement and automatic numbering are automatically completed in the pipeline model; End things and complete model building.

7. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: The constructed outdoor compressed air pipeline model is tested, including: Based on the pipeline collision check function in the Revit platform, a collision check is performed on the established compressed air pipeline model, including checking whether there is a hard collision and a soft collision between the pipeline model and the inspection well model. A hard collision refers to a direct contact collision between models, and a soft collision refers to the horizontal clearance or vertical clearance between pipeline models not meeting the specification requirements. If a hard collision or a soft collision occurs, the pipeline avoidance function in the plug-in is used to make adjustments until the specification requirements are met.

8. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Create pipeline model information annotation, including: Select the pipeline model and call Revit API to extract the pipeline model information; Load the family file of the pipe or accessory equipment that needs annotation; Automatically modify annotation family parameter information to match the pipeline model; Generate pipeline model annotation information, which includes pipeline nominal diameter, pipeline elevation or buried depth, pipeline system code, pipeline coordinates, equipment number, inspection well number, oil-water separator number, pipe rack structure, buried pipeline construction drawing, inspection well detailed drawing, and pipeline material table.

9. A BIM forward design method for outdoor compressed air pipelines in a vehicle depot as claimed in claim 1, characterized in that: Generate outdoor compressed air pipeline drawings and material lists, including: Create pipeline plan layout views, pipe network support cross-sectional views, buried pipeline construction drawings, and inspection well details; Create corresponding frames according to the number and size of views; Modify the drawing frame family parameter information and generate drawing title and drawing number; Add the view to the drawing frame and adjust the view to the appropriate position; Create a pipe list, calculate the pipe quantity and write it into an Excel file; Submit the transaction to complete the creation of the pipeline network drawings and material lists.

10. A BIM forward design system for outdoor compressed air pipelines in a vehicle depot, characterized in that: The system comprises: The pipeline design module is used to determine the center path of the branch pipes and main pipes of the outdoor compressed air pipeline of the depot, and determine the pipeline design parameters; Parametric family library creation module, used to create a parametric family library for outdoor compressed air pipelines based on family templates in the Revit platform; A sample file creation module, used for configuring a working environment in Revit software and creating a Revit project sample file based on the working environment; A model building module is used to build a model of outdoor compressed air pipelines and auxiliary equipment based on the determined center paths of the outdoor compressed air pipeline branches and main pipes of the depot, pipeline design parameters, and a pre-created outdoor compressed air pipeline parametric family library; The result processing module is used to detect the constructed outdoor compressed air pipeline model, create pipeline model information annotation, and generate outdoor compressed air pipeline drawings and material lists.

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