BIM model intelligent prefabrication deepening design method and device and storage medium

Abstract

The invention discloses a BIM model intelligent prefabrication deepening design method and device and a storage medium, and the method comprises the following steps: S1, designing an electromechanical model basic design data refinement standardization governance algorithm; and S2, designing a rapid prefabricated deepening design algorithm based on the step S1. According to the embodiment of the invention, through standardization of prefabricated parts, a standardized product is converted from a non-standard rate of nearly 100%, and the problem that industrial and digital production cannot be realized due to infinite non-standard pipe section prefabrication is solved; by building modular prefabricated machine room series products, welding-free, cutting-free and building block splicing type green and safe construction is achieved in field assembly construction, and compared with a traditional mode, the installation efficiency is improved by 70% or above.

Description

Technical Field

[0001] The present invention relates to the technical field of BIM model design, and in particular to an intelligent prefabricated deepening design method, device and storage medium for BIM models. Background Art

[0002] Currently, the construction industry is characterized by an extensive production mode, and each building needs to be designed separately, which makes each building unique. Correspondingly, the internal structures and mechanical and electrical components of buildings are also customized, and this personalized demand has brought huge challenges to the transformation of the construction industry towards new industrialization.

[0003] In the field of building mechanical and electrical, there are generally characteristics of small batch, multi-batch, high non-standardization, and customized component processing and production. These prefabricated components vary greatly in size, shape, type, and quantity. The typical representative scenario of the industrialization of building mechanical and electrical installation at present is the fully prefabricated and assembled machine room application scenario, and there are the following problems at the design end.

[0004] 1. The basic design data of the BIM model at the design source lacks industrial standard requirements, resulting in the design basic data statistically obtained from the BIM model being unable to guide production and processing management.

[0005] 2. Currently, the mechanical and electrical industry usually uses traditional BIM design deepening software, which generally has problems such as low intelligence level, long manual design cycle, and low work efficiency, and it is difficult to achieve high-precision prefabricated deepening of industrial grade;

[0006] 3. The lack of industrial standard requirements and guidance at the source of BIM design leads to infinite non-standardization of prefabricated products, making it difficult to meet the requirements of industrialized and digital high-efficiency production;

[0007] 4. The BIM model is closed at the design end, and the data is disconnected between the production end and subsequent links. It entirely relies on manual and inefficient parsing and transfer, unable to meet the industrialization requirements, and hinders the implementation of the "one model to the end" of the BIM model. Summary of the Invention

[0008] An intelligent prefabricated deepening design method, device and storage medium for BIM models proposed by the present invention solve problems such as low intelligence level of the software at the design end, infinite non-standardization of design results, and design data not meeting the requirements of industrialized processing.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] An intelligent prefabricated deepening design method for BIM models includes the following steps,

[0011] S1. Design a refined and standardized governance algorithm for the basic design data of the mechanical and electrical model;

[0012] S2. Design a fast prefabrication detailed design algorithm based on step S1.

[0013] Further, step S1 specifically includes:

[0014] S11. Establish a special design family library for the computer room standard, covering two special family libraries for computer room pipeline connectors and special family libraries for computer room pipeline valves. Among them, the key design parameters of computer room pipeline connectors are set according to the national standard specification atlas, and the key design parameters of the special family of computer room valves are set according to the requirements affecting processing and production;

[0015] S12. Sort out the key design parameters of the original design drawings and design specifications of the computer room pipelines, and sort out the material used under different pipe diameters of the prefabricated pipelines involved in the computer room, its corresponding connection method, and the key design parameter information of the pipe outer diameter and wall thickness corresponding to the nominal diameter of the pipeline under various materials;

[0016] S13. Enter the design parameter information of the pipe outer diameter and wall thickness corresponding to the nominal diameter of the pipeline under various materials into the Revit design software;

[0017] S14. In the Revit design software, use the information setting function to perform parametric settings on the materials used under different pipe diameters of the prefabricated pipelines and their corresponding connection methods. At the same time, retrieve the parameter information in S12 to realize the setting of the basic design information of the model, and export the design information list. At the same time, clear the original incorrect design basic information;

[0018] S15. Use the pipeline type replacement function to import the design information list, identify the basic setting of the pipeline type parameters of the original BIM model, match them with the parameter settings of the design list, retrieve the standard pipe section types and connectors in the design list, and perform model replacement;

[0019] S16. Use the valve accessory replacement function to extract the valve connector family model in the original design model. By setting keywords, realize the intelligent matching of the valve family parts in the original model with the special family library of computer room pipeline valves. Use the replacement function to replace the valve family in the original design model to generate a standard valve family with special prefabrication design parameters;

[0020] S17. Use the valve accessory size parameter adjustment function to extract the key design parameters in the valve family model with special prefabrication design parameters after replacement that affect prefabrication production and processing, and batch input them according to the actual measured data of the project procurement to realize the one-to-one restoration of the BIM model design data and improve the work efficiency of writing the design model data.

[0021] S18. By using the above one standard family library + one design information setting + two recognition and replacement functions + one parametric batch adjustment function, it is possible to replace the original electromechanical BIM model transferred by the original design institute with a standard BIM family model, quickly bring in the original design basic model data and the procurement basic design data, and finally realize the standardized management of the BIM model design data.

[0022] Further, step S2 includes

[0023] S21. Based on national standards, standard BIM family models of flanges and bolts commonly used in machine rooms under different pressures are established. In the BIM model, the national standard theoretical parameter data is used as the basic model design data. After the flange materials for the project arrive, accurate re-measurement of the design data is carried out to determine the final measured design parameters. Through the function of importing and exporting tables, the accurate design data can be brought into the BIM model;

[0024] S22. According to the requirements of industrialized prefabrication and production of air-conditioning water pipelines, combined with the connection method of balance flanges and pipelines, the key basic design parameter setting of the insertion depth of pipelines into butt-welding flanges is introduced, and the distance parameters of pipelines penetrating into flanges under different pipe diameters are set, realizing the consistency with the production line processing, cutting, and assembly process parameters during the pipeline design process based on the BIM model;

[0025] S23. Formulate the design principle for the connection between the fully prefabricated machine room pipelines and common valves, which serves as the basis for the automatic generation design of quickly prefabricated segmented flanges at the valve positions in the fully prefabricated machine room;

[0026] S24. Aiming at the problem of unlimited non-standardization of prefabricated pipe sections in the machine room due to the lack of component-level standard constraints in the detailed design stage, the industry's first design process standard library for 5 major categories (I type, L type, F type, T type, Z type) and 65 sub-items of prefabricated pipe sections in the machine room is established. The prefabricated pipe sections are defined with standardization rules based on parameters such as product type, assembly form, and geometric dimensions, transforming the infinitely non-standard prefabricated pipe sections into standard products that can be parameterized, providing a product standard basis for the digital prefabrication detailed design of the machine room;

[0027] By unifying the code names of various design parameters such as pipe outer diameter, wall thickness, length, flange thickness, depth, elbow outer diameter, and center radius, a design process data standard library is formed;

[0028] S25. Based on the design process standard library for 4 major categories and 65 sub-items of prefabricated pipe sections in the machine room, reverse formulate the flange generation principle for the prefabricated segmented design of the fully prefabricated machine room pipelines, and formulate relevant prefabricated products, which serve as the basis for the generative design of pipeline segmented connections.

[0029] S26. According to the prefabricated pipe categories in the fully prefabricated machine room and the connection relationship between the main and branch pipes, the design principle of the automatic segmentation priority of industrialized products for mechanical and electrical installation is formulated, which serves as the design mechanism for the sequential order of generating flanges in the rapid prefabrication and segmentation design of all pipes and valve components in the machine room;

[0030] S27. Extract the segmentation range of the pipes in the fully prefabricated machine room in the BIM model. According to the design scenario requirements, extract item by item and batch by batch according to the whole-section connected pipes, or extract in batches according to the same type of system. Combining the automatic pipe segmentation algorithm in the machine room with the two flange generation design principles, the automatic generation of flange connectors in the BIM model of the mechanical and electrical pipelines in the machine room can be realized;

[0031] S28. Establish a product numbering principle. Independently identify all the connected pipes, connectors and their corresponding connected flanges in the machine room according to each pipe system. The product numbering algorithm will number all the selected components starting from the equipment port, first number the branch pipes, and then number the main pipes for free combination. Match with the design process standard library of the prefabricated pipe sections in the machine room. After successful matching, start the automatic software to compile the grouping function, thus forming each prefabricated product for production, and conduct product numbering. The product information data is written into the newly added attributes of the BIM model;

[0032] S29. Extract the prefabricated product model of each number, and develop the function of automatically generating processing drawings for prefabricated products. Automatically generate the front view, side view, top view and three-dimensional view for each prefabricated product. At the same time, according to the production and processing requirements, automatically generate the design information statistics and compilation such as design markings, production instruction annotations, drawing frames, drawing names, and key design statistical tables;

[0033] S210. First, set the cutting parameters of the pipe raw materials. The cutting length parameter is set according to the material loss length after cutting by the factory cutting machine, and the raw material cutting length parameter is the procurement length of the pipe raw materials;

[0034] S211. Establish an intelligent cloth laying algorithm for the prefabricated pipe products in the machine room. Extract the design data of the processed pipe sections in the prefabricated products in the model. Reasonably summarize each processed product number and sub-number according to the loss of the pipe raw materials and the cutting length parameters. In the raw materials, conduct BOM-driven data statistics on the cutting sequence and key cutting process parameters, and export the BOM list to the factory for cutting to achieve model data drive;

[0035] S212. Utilize the intelligent compilation and statistics function of the prefabricated pipe product model data in the machine room. Around the aspects of material procurement, automatic material handling and preparation by AGV carts, product quality inspection, and product on-site delivery, formulate a standard model-driven statistical data BOM list, and utilize the intelligent compilation and statistics function to extract and compile the model design data.

[0036] Furthermore, the design principles for connecting the fully prefabricated machine room pipelines with common valves in step S23 are as follows:

[0037] a. The pipes on both sides of the reducer or reducer are connected by butterfly valve flanges;

[0038] b. The pipes on both sides of the wafer-type butterfly valve and the flange-type butterfly valve are connected by butterfly valve flanges;

[0039] c. The pipeline connection points are connected by flat welding flanges;

[0040] d. The pipes on both sides of the Y-type filter, check valve, energy meter and balancing valve are connected with flat welding flanges;

[0041] e. The flange connecting the equipment is generally connected using the flange provided by the equipment.

[0042] 5. The BIM model intelligent prefabrication in-depth design method according to claim 3 is characterized in that: the flange generation design principle in step S25 is as follows:

[0043] a. Principle of segmented design for main pipe preform generation: The flange at the main pipe position is automatically generated according to the following product length parameters;

[0044] b. Principle of segmented design of main and branch pipe prefabricated products: the flange at the main pipe position is automatically generated according to the distance between the outer wall of the branch pipe and the main pipe;

[0045] c. Principle of segmented design of intersecting branch pipe prefabricated products: The flanges at the branch pipe positions are automatically generated according to the length parameter settings of T-type and F-type products;

[0046] d. Principle of branch pipe segmentation design: I-type products and L-type products intelligently generate flanges based on length parameters.

[0047] 6. The BIM model intelligent prefabrication in-depth design method according to claim 5 is characterized in that: the automatic segmentation priority design principle in step S26 is as follows:

[0048] Priority 1: Main pipe B-shaped bend products, main branch connection pipes, branch pipes,

[0049] Priority 2: Main pipe elbows and intersecting line products;

[0050] Priority 3: Main straight pipe segment products, which serve as segmented connections.

[0051] Furthermore, the calculation principle of the algorithm in S211 is as follows:

[0052] (1) Model global cloth:

[0053] a. This method is consistent with the original fabric form, and fabric statistics are carried out for all products with drawings already made.

[0054] b. Ignore the numbering order, and carry out fabric calculation in the way of minimizing the cutting and the consumption of remaining pipe materials.

[0055] c. The length of a single finished pipe ≥ ∑(pipe length) + number of cutting times * cutting loss.

[0056] (2) Fabric distribution according to product numbers:

[0057] a. This method carries out fabric distribution according to the ascending product numbers. One fabric data contains n complete or adjacent-numbered products.

[0058] b. While keeping the product numbers in ascending order, carry out fabric distribution in the way of minimizing the cutting and the consumption of remaining pipe materials.

[0059] c. If after a product is finished with fabric distribution, the remaining materials can be used for some pipes in adjacent-numbered products, the pipes in adjacent-numbered products can be included in the fabric distribution, and the adjacent numbers are also distributed in ascending order.

[0060] d. The length of a single finished pipe ≥ ∑(pipe length in a single product) + ∑(pipe length in adjacent-numbered products) + number of cutting times * cutting loss.

[0061] (3) Fabric distribution in batches by production line and stage:

[0062] a. This method screens the pipes by production line, stage and batch, and then carries out fabric distribution according to the ascending product numbers.

[0063] b. First, screen the pipes of the same production line, stage and batch.

[0064] c. In the case of the same production line, stage and batch, ignore the numbering order, and carry out fabric calculation in the way of minimizing the cutting and the consumption of remaining pipe materials.

[0065] d. The length of a single finished pipe ≥ ∑(pipe length of the same product, stage and batch) + number of cutting times * cutting loss.

[0066] (4) Fabric distribution of adjacent numbers in batches by production line and stage:

[0067] a. This method screens the pipes by production line, stage and batch, and then carries out fabric distribution according to the adjacent product numbers.

[0068] b. First, screen the pipes of the same production line, stage and batch; while keeping the product numbers in ascending order, carry out fabric distribution in the way of minimizing the cutting and the consumption of remaining pipe materials.

[0069] c. If, after a product's fabric is completed, the leftover material can be used for some of the pipes in adjacent numbered products, the pipes in adjacent numbered products can be included in the fabric, and the adjacent numbers are also fabric-ordered in ascending order;

[0070] d. The length of a single finished pipe ≥ ∑(the lengths of the pipes in a single product in the same production line period batch) + ∑(the lengths of the pipes in adjacent numbered products in the same production line period batch) + the number of cutting times * cutting loss

[0071] On the other hand, the present invention also discloses a computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to execute the steps of the above method.

[0072] On yet another hand, the present invention also discloses a computer device including a memory and a processor, the memory storing a computer program, which, when executed by the processor, causes the processor to execute the steps of the above method.

[0073] Through the standardization of prefabricated components, the present invention's embodiments transform products from nearly 100% non-standard rate into standardized products, solving the problem of non-industrialized and digital production caused by infinite non-standardization in pipe section prefabrication; by creating a modular prefabricated machine room series of products, on-site assembly construction realizes non-welding, non-cutting, and building-block-style green and safe construction, and the installation efficiency is increased by more than 70% compared with traditional methods.

[0074] It can solve the current industry problems:

[0075] This technical achievement solves the problems of low design efficiency in traditional BIM / CAD manual prefabrication decomposition design, low utilization rate of BIM design data in the transfer of design information through two-dimensional drawings, lack of processing technology information in the design model, and high non-standard rate of traditional prefabricated product design.

[0076] Applying this achievement, the Shenzhen Zhongjian Greater Bay Area Smart Industrial Park has been built, and it has been promoted and applied in 8 construction projects such as the Shenzhen Liuxiandong Strategic Emerging Industry Headquarters Base and the second phase of the Zhuhai Hengqin Science City, significantly improving the level of China's building mechanical and electrical industrialized manufacturing technology and achieving good social and economic benefits. This technology has been evaluated by many industry professionals such as Academician Ding Lieyun and has reached the international leading level in the overall building industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 It is a flowchart of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0078] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0079] As Figure 1 shown, the intelligent prefabrication detailed design method for the BIM model described in this embodiment includes the following steps:

[0080] 1. Developed a refined and standardized governance algorithm for the basic design data of the mechanical and electrical model.

[0081] Step 1: Establish a special design family library for the computer room standard, covering two special family libraries for the pipe connectors in the computer room and the special family library for the pipe valves in the computer room. Among them, the key design parameters of the pipe connectors in the computer room are set according to the national standard specification atlas (XXX), and the key design parameters of the special family of computer room valves are set according to the requirements affecting processing and production.

[0082] Step 2: Sort out the key design parameters of the original design drawings and design descriptions of the computer room pipelines, and organize the information on the materials used for the prefabricated processing pipelines of different pipe diameters in the computer room, their corresponding connection methods, and the key design parameter information of the pipe outer diameter and wall thickness corresponding to the nominal pipe diameter of various materials.

[0083] Step 3: Basic input the design parameter information of the pipe outer diameter and wall thickness corresponding to the nominal pipe diameter of various materials into the Revit design software.

[0084] Step 4: In the Revit design software, use the information setting function to perform parametric settings on the materials used for the prefabricated processing pipelines of different pipe diameters and their corresponding connection methods. At the same time, retrieve the parameter information in Step 2 to achieve the setting of the basic design information of the model, and export the design information list, while clearing the original incorrect design basic information. (Technical highlight of this step: Through this setting, the standardization of the original design information parameters can be achieved. At the same time, by using the list export, the non-standard design information of the BIM model of the original design institute can be cleared, improving the accuracy of the basic design parameters of the model.)

[0085] Step 5: Use the pipe type replacement function to import the design information list, identify the basic settings of the pipe type parameters in the original BIM model, match them with the parameter settings in the design list, retrieve the standard pipe section types and connectors in the design list, and perform model replacement. (Technical highlight of this step: By identifying the standard design basic information list and standard pipelines)

[0086] Step 6: Use the valve accessory replacement function to extract the valve connection part family model in the original design model. By setting keywords, intelligent matching between the valve family parts in the original model and the special valve family library for machine room pipelines is achieved. Using the replacement function, replace the valve family in the original design model to generate a standard valve family with special prefabrication design parameters. (Technical highlight: By setting keywords, quickly match and replace the original design valves in the model with the valves in the special valve family library, realizing the efficient utilization of the valves in the original design model and improving the efficiency of model data governance.)

[0087] Step 7: Use the valve accessory size parameter adjustment function to extract the design parameters that are crucial for prefabrication production and processing in the valve family model with standard special prefabrication design parameters after replacement. Batch input according to the actual measured data of project procurement and tendering to achieve a one-to-one restoration of the design data in the BIM model, improving the work efficiency of writing design data into the design model. (Technical highlight: By setting key design parameters in the special line family and combining the batch adjustment function, the design parameters of the replaced BIM model can be quickly adjusted, improving the efficiency of writing design parameters into the BIM model.)

[0088] Step 8: Through the above one standard family library + one design information setting + two recognition and replacement functions + one parametric batch adjustment function, it is possible to replace the original electromechanical BIM model transferred by the original design institute with a standard BIM family model, quickly bring in the original design basic model data and the procurement and tendering basic design data, and finally achieve the standardized governance of the BIM model design data.

[0089] 2. Developed fast prefabrication detailed design technology

[0090] Step 1: Based on the national standard of flange bolts GB / T 9124.1-2019 "Steel Pipe Flanges Part 1: PN Series", established standard BIM family models of common flanges and bolts in the machine room under different pressures. Use the national standard theoretical parameter data as the basic model design data in the BIM model. After the flange materials for the project arrive, conduct accurate re-measurement of the design data to determine the final actual measured design parameters. Through the function of importing and exporting tables, the accurate design data can be brought into the BIM model to ensure the accuracy of the basic design of the BIM model.

[0091] Step 2: Based on the industrialized prefabrication production requirements of air-conditioning water pipelines and combined with the connection method of balance flanges and pipelines, introduced the key basic design parameter setting of the depth of the pipe inserted into the flat-weld flange, set the distance parameter of the pipe inserted into the flange under different pipe diameters, and achieved consistency between the pipe design process based on the BIM model and the process parameters of production line processing, cutting, and assembly, improving the accuracy of the design data of the BIM model.

[0092] Step 3: Formulate the design principles for the connection between the fully prefabricated machine room pipeline and the commonly used valves, which will serve as the basis for the automatic generation of the design of the fast prefabricated segmented flanges at the valve positions of the fully prefabricated machine room. The design principles for the connection between the fully prefabricated machine room pipeline and the commonly used valves are as follows:

[0093] a. The pipes on both sides of the reducer or reducer are connected by butterfly valve flanges;

[0094] b. The pipes on both sides of the wafer-type butterfly valve and the flange-type butterfly valve are connected by butterfly valve flanges;

[0095] c. The pipeline connection points are connected by flat welding flanges;

[0096] d. The pipes on both sides of the Y-type filter, check valve, energy meter and balancing valve are connected with flat welding flanges;

[0097] e. The flange connecting the equipment is generally connected using the flange provided by the equipment.

[0098] Step 4: In view of the unlimited non-standard problem of the prefabricated pipe sections in the computer room due to the lack of component-level standard constraints in the in-depth design stage, this study established the industry's first 65-item design process standard library of 5 categories (I, L, F, T, and Z) of prefabricated pipe sections in the computer room, and defined standardized rules for prefabricated pipe sections based on parameters such as product type, grouping form, shape, position, and size, and converted unlimited non-standard products of pipe sections into standard products that can be represented by parameters, providing a product standard foundation for the in-depth design of digital prefabrication of computer rooms. By unifying the design parameter codes of various types of pipe outer diameters, wall thicknesses, lengths, flange thicknesses, depths, elbow outer diameters, and center radius, a standard library of design process data is formed.

[0099] Step 5: Based on the design process standard library of 4 categories and 65 sub-items of prefabricated pipe sections in the machine room, reversely formulate the flange generation principles for the prefabricated segmented design of the fully prefabricated machine room pipeline, and formulate relevant prefabricated products as the basis for the generative design of pipeline segment connections. The flange generation design principles are as follows:

[0100] e. Principle of segmented design for main pipe preform generation: The flange at the main pipe position is automatically generated according to the following product length parameters.

[0101] f. Principle of segmented design for prefabricated main and branch pipes: The flange at the main pipe position is automatically generated according to the distance between the outer wall of the branch pipe and the main pipe.

[0102] g. Principle of segmented design for intersecting branch pipe prefabricated products: The flanges at the branch pipe positions are automatically generated according to the length parameter settings of T-type and F-type products.

[0103] h. Principle of branch pipe segmentation design: Flanges are intelligently generated for I-type and L-type products based on length parameters.

[0104] Step 6: According to the prefabricated pipe categories in the fully prefabricated machine room and the connection relationship between the main and branch pipes, the design principle of the automatic segmentation priority for industrialized products of mechanical and electrical installation is formulated, which serves as the design mechanism for the sequential order of the rapid prefabrication segmentation design flange generation of all pipes and valve components in the machine room. The design principle of automatic segmentation priority is as follows:

[0105] Priority 1: Main pipe Z-bend products, main and branch pipe connection pipes, and branch pipes,

[0106] Priority 2: Main pipe elbow and intersection line products;

[0107] Priority 3: Main pipe straight section products, which play a role in segmented connection.

[0108] Step 7: Extract the segmented range of the pipes in the fully prefabricated machine room in the BIM model. According to the needs of the design scenario, it can be extracted item by item and batch by batch according to the whole-section connection pipes, or batch-extracted according to the same type of systems. Combining the automatic pipe segmentation algorithm in the machine room with the two flange generation design principles can realize the automatic generation of flange connectors in the BIM model of the mechanical and electrical pipelines in the machine room. (Highlight of this technology: By setting rules such as the design process standard library of 4 major categories and 65 sub-items of the prefabricated pipe sections in the set machine room, the product key parameter setting principle, and the segmentation design priority of the main and branch pipelines, the non-standardized segmentation design of the traditional machine room pipe prefabrication can be transformed into a standardized prefabrication design in the algorithm function, improving the design standardization at the design source and then driving the batch processing and production.)

[0109] Step 8: Establish the product numbering principle. According to each pipe system, all the connected pipes, connectors, and their corresponding connected flanges in the machine room are independently identified. The product numbering algorithm will number all the selected components starting from the equipment port, first number the branch pipes, and then number the main pipes for free combination. After matching with the design process standard library of the prefabricated pipe sections in the machine room, the automatic software grouping function is started after successful matching to form each prefabricated processing product, and product numbering is carried out. The product name is set as (system abbreviation XXX-01 / N), and the number increases according to the number of system products. The product information data is written into the newly added BIM model attributes. (Highlight of this technology: Through the algorithms of product free grouping and writing automatic numbering parameters, the product design of building mechanical and electrical pipes can be realized.)

[0110] Step 9: Extract the prefabricated product models with each number, develop the function of automatically generating processing drawings for prefabricated products, automatically generate the front view, side view, top view and 3D view for each prefabricated product, and at the same time, according to the production and processing requirements, automatically generate the design information statistics and compilation such as design annotations, production instruction notes, drawing frames and titles, and key design statistics tables. (Technical highlight of this technology: Through the function of automatically generating drawings for products, standardized drawing output for each product can be realized, and the design drawing output efficiency can be increased by more than 95%).

[0111] Step 10: First, set the cutting parameters of the pipeline raw materials. The cutting length parameter is set according to the material loss length after cutting by the factory cutting machine. The raw material blanking length parameter is the procurement length of the pipeline raw materials, usually defaulting to 12m / 6m.

[0112] Step 11: Establish an intelligent cloth laying algorithm for prefabricated pipeline products in the machine room, extract the design data of the processed pipe sections in the prefabricated products in the model, reasonably summarize each processed product number and sub-number according to the loss of pipeline raw materials and cutting length parameters, and conduct BOM-driven data statistics on the cutting sequence and key cutting process parameters in the raw materials, and export the BOM list to the factory for cutting to realize model data drive. (Technical highlight of the intelligent cloth laying algorithm for prefabricated pipeline products in the machine room: Through intelligent cloth laying statistics, effective planning of the processing cycle, cutting process, and cutting process required for the prefabricated products of the project can be realized, and relevant driving BOM data can be exported, which can drive automated production such as plasma cutting, automatic rust removal machine, and automatic feeding of the feeding library for feeding, rust removal, and cutting). The algorithm calculation principles are as follows:

[0113] (1) Global cloth laying of the model:

[0114] a. This method is the same as the original cloth laying form, and cloth laying statistics are carried out on all products for which drawings have been issued;

[0115] b. Ignoring the number order, carry out cloth laying calculation according to the method of the least cutting and the smallest remaining pipe material consumption;

[0116] c. The length of a single finished pipe ≥ ∑(pipe length) + number of cutting times * cutting loss.

[0117] (2) Cloth laying by product number:

[0118] a. This method conducts cloth laying according to the ascending product numbers. One cloth laying data contains n complete or adjacent-numbered products;

[0119] b. While keeping the product numbers in ascending order, use the method of the least cutting and the smallest remaining pipe material consumption for cloth laying;

[0120] c. After a product's fabric is completed, if the leftover material can be used for some of the pipes in adjacent numbered products, the pipes in adjacent numbered products can be included in the fabric, and the adjacent numbers are also fabric-ordered in ascending order.

[0121] d. The length of a single finished pipe ≥ ∑(length of pipes in a single product) + ∑(length of pipes in adjacent numbered products) + number of cutting times * cutting loss.

[0122] (3) Fabric-ordering for the production line in batches and stages:

[0123] a. After screening the pipes for the production line, stage, and batch in this method, fabric-ordering is carried out according to the ascending product numbers.

[0124] b. First, screen the pipes of the same production line, stage, and batch.

[0125] c. In the case of the same production line, stage, and batch, regardless of the numbering order, fabric-ordering calculation is carried out in the way of the least cutting and the smallest remaining pipe consumption.

[0126] d. The length of a single finished pipe ≥ ∑(length of pipes of the same product stage and batch) + number of cutting times * cutting loss.

[0127] (4) Fabric-ordering for adjacent numbers in batches and stages of the production line:

[0128] a. After screening the pipes according to the production line, stage, and batch in this method, fabric-ordering is carried out according to the adjacent product numbers.

[0129] b. First, screen the pipes of the same production line, stage, and batch; when keeping the product numbers in ascending order, use the way of the least cutting and the smallest remaining pipe consumption for fabric-ordering.

[0130] c. After a product's fabric is completed, if the leftover material can be used for some of the pipes in adjacent numbered products, the pipes in adjacent numbered products can be included in the fabric, and the adjacent numbers are also fabric-ordered in ascending order.

[0131] d. The length of a single finished pipe ≥ ∑(length of pipes in a single product of the same production line, stage, and batch) + ∑(length of pipes in adjacent numbered products of the same production line, stage, and batch) + number of cutting times * cutting loss.

[0132] Step Twelve: Utilize the intelligent compilation and statistics function of the prefabricated pipe product model data in the computer room. Around the aspects of material procurement, automatic material fetching and preparation by AGV carts, product quality inspection, and product on-site delivery, formulate a standard model-driven statistical data BOM list, and use the intelligent compilation and statistics function to extract and compile the model design data.

[0133] In summary, in the embodiments of the present invention, through the standardization of prefabricated components, the non-standard rate of nearly 100% is transformed into standardized products, solving the problem of non-industrialized and digital production caused by the infinite non-standardization of pipe section prefabrication; by creating a series of modular prefabricated machine rooms, on-site assembly construction realizes green and safe construction without welding and cutting, like building with building blocks, and the installation efficiency is increased by more than 70% compared with the traditional method.

[0134] It can solve the current industry problems:

[0135] This technical achievement solves the problems of low design efficiency in traditional manual prefabrication decomposition design based on BIM / CAD, low utilization rate of BIM design data due to the transfer of design information through two-dimensional drawings, lack of processing technology information in the design model, and high non-standard rate of traditional prefabricated product design.

[0136] Applying this achievement, the Shenzhen Zhongjian Greater Bay Area Smart Industrial Park has been built, and it has been promoted and applied in 8 construction projects such as the Strategic Emerging Industry Headquarters Base in Liuxiandong, Shenzhen and the Second Phase of Hengqin Science City, Zhuhai, significantly improving the industrialized manufacturing technology level of building electromechanics in China and achieving good social and economic benefits. This technology has been evaluated by many industry professionals such as Academician Ding Lieyun and has reached the international leading level in the overall building industry.

[0137] On the other hand, the present invention also discloses a computer-readable storage medium storing a computer program, which when executed by a processor causes the processor to execute the steps of the above method.

[0138] On yet another hand, the present invention also discloses a computer device including a memory and a processor, the memory storing a computer program, which when executed by the processor causes the processor to execute the steps of the above method.

[0139] In another embodiment provided by the present application, there is also provided a computer program product containing instructions, which when running on a computer causes the computer to execute any one of the BIM model intelligent prefabrication deepening design methods in the above embodiments.

[0140] It can be understood that the systems, devices and storage media provided in the embodiments of the present invention correspond to the methods provided in the embodiments of the present invention, and the explanations, examples and beneficial effects of related content can refer to the corresponding parts in the above methods.

[0141] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

[0142] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements but also other elements that are not explicitly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device that includes the element.

[0143] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

[0144] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent prefabrication deepening design method for BIM models, characterized in that, It includes the following steps: S1. Design a refined and standardized governance algorithm for the basic design data of the electromechanical model; S2. Based on step S1, design a rapid prefabrication and detailed design algorithm.

2. The intelligent prefabrication and detailed design method of the BIM model according to claim 1, characterized in that: Step S1 specifically includes: S11. Establish a special design family library for the machine room standard, covering two special family libraries for the pipe connectors in the machine room and the special family library for the pipe valves in the machine room. Among them, the key design parameters of the pipe connectors in the machine room are set according to the national standard specification atlas, and the key design parameters of the special family of machine room valves are set according to the requirements affecting processing and production; S12. Sort out the key design parameters of the original design drawings and design specifications of the machine room pipelines, and sort out the material used under different pipe diameters of the prefabricated pipes involved in the machine room, its corresponding connection method, and the key design parameter information of the pipe outer diameter and wall thickness corresponding to the nominal pipe diameter under various materials; S13. Basically input the pipe outer diameter and wall thickness design parameter information corresponding to the nominal pipe diameter under various materials into the Revit design software; S14. In the Revit design software, use the information setting function to perform parametric settings on the materials used under different pipe diameters of the prefabricated pipes and their corresponding connection methods. At the same time, retrieve the parameter information in S12 to realize the setting of the basic design information of the model, and export the design information list, and at the same time clear the original incorrect design basic information; S15. Use the pipe type replacement function to import the design information list, identify the basic setting of the pipe type parameters of the original BIM model pipeline, match it with the parameter setting of the design list, retrieve the standard pipe section type and connectors in the design list, and perform model replacement; S16. Use the valve accessory replacement function to extract the valve connector family model in the original design model. By setting keywords, realize the intelligent matching of the valve family parts in the original model with the special family library of the machine room pipe valves. Use the replacement function to replace the valve family in the original design model to generate a standard valve family with special prefabrication design parameters; S17. Use the valve accessory size parameter adjustment function to extract the key design parameters that affect prefabrication production and processing in the valve family model with special prefabrication design parameters after replacement, and batch input according to the actual measured data of the project procurement to realize the one-to-one restoration of the BIM model design data and improve the work efficiency of writing the design model data; S18. Through the above one standard family library + one design information setting + two recognition and replacement functions + one parametric batch adjustment function, it is possible to replace the electromechanical BIM model transferred by the original design institute with a standard BIM family model, quickly input the original design basic model data and the procurement basic design data, and finally realize the standardized governance of the BIM model design data.

3. The intelligent prefabrication detailed design method for BIM models according to claim 2, wherein: Step S2 includes S21. Established standard BIM family models for common flanges and bolts in machine rooms under different pressures according to national standards. Based on the theoretical parameter data of national standards as the basic model design data in the BIM model, after the flange materials for the project arrived, accurate re-measurement of the design data was carried out to determine the final measured design parameters. Through the function of importing and exporting tables, the accurate design data can be brought into the BIM model; S22. According to the requirements of industrialized prefabrication and processing production of air-conditioning water pipelines, combined with the connection method of balance flanges and pipelines, the key basic design parameter setting of the insertion depth of pipelines into flat-welded flanges was introduced, and the distance parameters of pipelines penetrating into flanges under different pipe diameters were set, realizing the consistency with the production line processing, cutting, and assembly process parameters during the pipeline design process based on the BIM model; S23. Formulated the design principle for the connection between all prefabricated machine room pipelines and common valves, serving as the basis for the automatic generation design of quickly prefabricated segmented flanges at the valve positions in all prefabricated machine rooms; S24. Aiming at the problem of unlimited non-standardization of prefabricated pipe sections in machine rooms caused by the lack of component-level standard constraints in the detailed design stage, the industry's first design process standard library for 65 sub-items in 5 major categories of prefabricated pipe sections in machine rooms, namely type I, type L, type F, type T, and type Z, was established. The prefabricated pipe sections were defined with standardization rules based on parameters such as product type, assembly form, and geometric dimensions, converting the infinitely non-standard prefabricated pipe sections into standard products that can be parameterized, providing a product standard basis for the digital prefabrication detailed design of machine rooms; By unifying the code names of various design parameters such as pipe outer diameter, wall thickness, length, flange thickness, depth, elbow outer diameter, and center radius, a design process data standard library was formed; S25. Based on the design process standard library for 65 sub-items in 4 major categories of prefabricated pipe sections in machine rooms, the flange generation principle for the prefabricated segmented design of all prefabricated machine room pipelines was formulated in reverse, and relevant prefabricated products were developed, serving as the basis for the generative design of pipeline segmented connections; S26. According to the pipeline categories of prefabricated products in all prefabricated machine rooms and the connection relationship between main and branch pipelines, the design principle for the automatic segmentation priority of industrialized products for mechanical and electrical installation was formulated, serving as the design mechanism for the sequence of generating flanges in the quick prefabricated segmented design of all pipelines and valve components in the machine room; S27. Extract the segmented range of all prefabricated machine room pipelines in the BIM model. According to the needs of the design scenario, extract item by item and batch by batch according to the entire connected pipeline, or extract in batches according to the same type of system. Combining the automatic pipeline segmentation algorithm in the machine room and the two flange generative design principles, the automatic generation of flange connectors in the BIM model of the machine room's mechanical and electrical pipelines can be realized; S28. Established the product numbering principle. Independently identify all connected pipelines, connectors, and their corresponding connected flanges in the machine room according to each pipeline system. The product numbering algorithm will number all the selected components starting from the equipment port, first number the branch pipelines, and then number the main pipelines for free combination. Match with the design process standard library of prefabricated pipe sections in the machine room. After successful matching, start the group function of the automatic software for compilation, forming each prefabricated processing product, and carry out product numbering. The product information data is written into the newly added attributes of the BIM model; S29, extract the prefabricated product model of each number, develop the function of automatically generating processing drawings for prefabricated products, automatically generate front view, side view, top view and three-dimensional view for each prefabricated product, and automatically generate and compile design information statistics such as design annotations, production instructions annotations, drawing frames and drawing names, and key design statistics tables according to production and processing requirements; S210, firstly, setting the cutting parameters of the pipeline raw material, the cutting length parameter is set according to the material loss length after cutting by the factory cutting machine, and the raw material cutting length parameter is the purchased length of the pipeline raw material; S211. Establish an intelligent material distribution algorithm for prefabricated pipe products in the machine room, extract the design data of the processed pipe sections in the prefabricated products in the model, reasonably summarize the number and sub-number of each processed product according to the loss of pipe raw materials and cutting length parameters, and perform BOM-driven data statistics on the cutting sequence and key cutting process parameters in the raw materials. Export the BOM list to the factory for cutting to realize model data drive; S212. Utilize the intelligent statistical compilation function of the prefabricated pipeline product model data in the machine room to develop a standard model-driven statistical data BOM list around the material procurement, AGV automatic material collection and preparation, product quality inspection, and on-site product delivery links, and utilize the intelligent statistical compilation function to extract and compile the model design data.

4. The intelligent prefabricated detailed design method of the BIM model according to claim 3, wherein: The design principles for connecting the fully prefabricated machine room pipelines and common valves in step S23 are as follows: a. The pipes on both sides of the reducer or reducer are connected by butterfly valve flanges; b. The pipes on both sides of the wafer-type butterfly valve and the flange-type butterfly valve are connected by butterfly valve flanges; c. The pipeline connection points are connected by flat welding flanges; d. The pipes on both sides of the Y-type filter, check valve, energy meter and balancing valve are connected with flat welding flanges; e. The flange connecting the equipment is generally connected using the flange provided by the equipment.

5. The intelligent prefabrication detailed design method of the BIM model according to claim 3, characterized in that: The flange generation design principles in step S25 are as follows: a. Principle of segmented design for main pipe preform generation: The flange at the main pipe position is automatically generated according to the following product length parameters; b. Principle of segmented design of main and branch pipe prefabricated products: the flange at the main pipe position is automatically generated according to the distance between the outer wall of the branch pipe and the main pipe; c. Principle of segmented design of intersecting branch pipe prefabricated products: The flanges at the branch pipe positions are automatically generated according to the length parameter settings of T-type and F-type products; d. Principle of branch pipe segmentation design: I-type products and L-type products intelligently generate flanges based on length parameters.

6. The intelligent prefabricated detailed design method for BIM models according to claim 5, characterized in that: The design principle of automatic segmentation priority in step S26 is as follows: Priority 1: Main pipe B-shaped bend products, main branch connection pipes, branch pipes, Priority 2: Main pipe elbows and intersecting line products; Priority 3: Main straight pipe segment products, which serve as segmented connections.

7. The BIM model intelligent prefabrication in-depth design method according to claim 5 is characterized by: The calculation principles of the algorithm in S211 are as follows: (1) Model global cloth: a. This method is consistent with the original fabric form, and fabric statistics are performed on all products that have been drawn; b. Ignore the numbering sequence and calculate the material layout based on the least amount of cutting and the least consumption of remaining pipes; c. The length of a single finished pipe ≥ ∑(pipe lengths) + number of cutting times * cutting loss; (2) Product number cloth laying: a. This method conducts cloth laying according to ascending product numbers. One cloth laying data contains n complete or adjacent-numbered products; b. While maintaining the ascending order of product numbers, use the method with the least number of cuts and the minimum consumption of remaining pipes for cloth laying; c. If after cloth laying of one product, the remaining material can be used for some pipes in adjacent-numbered products, the pipes in adjacent-numbered products can be included in the cloth laying, and the adjacent numbers are also laid in ascending order; d. The length of a single finished pipe ≥ ∑(pipe lengths in a single product) + ∑(pipe lengths in adjacent-numbered products) + number of cutting times * cutting loss; (3) Production line cloth laying in stages and batches: a. This method screens the pipes according to the production line, stage, and batch, and then conducts cloth laying according to ascending product numbers; b. First, screen the pipes of the same production line, stage, and batch; c. In the case of the same production line, stage, and batch, ignore the number order and conduct cloth laying calculation according to the method with the least number of cuts and the minimum consumption of remaining pipes; d. The length of a single finished pipe ≥ ∑(pipe lengths of the same product, stage, and batch) + number of cutting times * cutting loss; (4) Production line cloth laying in stages, batches, and for adjacent numbers: a. This method screens the pipes according to the production line, stage, and batch, and then conducts cloth laying according to adjacent product numbers; b. First, screen the pipes of the same production line, stage, and batch; while maintaining the ascending order of product numbers, use the method with the least number of cuts and the minimum consumption of remaining pipes for cloth laying; c. If after cloth laying of one product, the remaining material can be used for some pipes in adjacent-numbered products, the pipes in adjacent-numbered products can be included in the cloth laying, and the adjacent numbers are also laid in ascending order; d. The length of a single finished pipe ≥ ∑(pipe lengths in a single product of the same production line, stage, and batch) + ∑(pipe lengths in adjacent-numbered products of the same production line, stage, and batch) + number of cutting times * cutting loss.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, the processor is caused to execute the steps of the method according to any one of claims 1 to 7.

9. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that, When the computer program is executed by the processor, the processor is caused to execute the steps of the method according to any one of claims 1 to 7.

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