Fabricated building transaction platform based on BIM technology and use method thereof

Abstract

The invention discloses a fabricated building transaction platform based on a BIM technology and a use method thereof, and relates to the technical field of fabricated buildings, the transaction platform combines a fabricated building with the BIM technology, and three-dimensionally displays one-dimensional and two-dimensional character drawings by using a three-dimensional model, so as to give the most intuitive feeling to project participants. The building model can be stored in a user personal center to be checked at any time, model modification information and the like can be quickly transmitted to any party related to the project, and symmetry of the information is ensured; a user can retrieve and select required prefabricated parts, components and the like through a BIM commodity model displayed by a manufacturer, can also match components, components and the like used in a building model through a background commodity library, quickly find out information of merchants which have the mold and can produce, select factors such as prices and freight distances to sort, and obtain the model information. And the platform can also provide an optimal scheme for joint production of multiple manufacturers for the user to select.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a prefabricated building trading platform based on BIM technology and its usage method. Background Technology

[0002] Prefabricated buildings are characterized by standardized design, factory production, assembly-based construction, and information-based management. BIM technology and prefabricated construction are inherently complementary. With the continuous expansion of my country's prefabricated building market and the increasing integration of BIM technology into the entire process of prefabricated building planning, design, production, construction, decoration, and operation and maintenance, developers, designers, and construction companies are actively exploring new procurement models for prefabricated components and parts. At the same time, manufacturers (building industrialization production bases) urgently need to improve transaction efficiency to increase production scale and spread mold procurement costs.

[0003] Information retrieval, price inquiries, payments, contract signing, and contract performance for prefabricated building components and parts are already utilizing internet technology and trading platforms. However, existing publicly available online trading platforms display prefabricated components and parts using text, images, or videos, lacking the ability to view precise 3D models or upload, match, modify, or download such models. The market lacks specialized trading platforms specifically for prefabricated building components and parts, and traditional one- or two-dimensional product display methods lack depth and model usability. Large construction companies often customize prefabricated building management platforms according to their business needs, typically limiting their scope to internal use, at most requiring suppliers to use specific interfaces for transaction information input and management. However, these management platforms lack openness; therefore, existing technology lacks a BIM-based transaction logic and a BIM-based prefabricated building information sharing trading platform framework. Summary of the Invention

[0004] This invention addresses the lack of a BIM-based transaction logic and a BIM-based prefabricated building information sharing and transaction platform framework in existing technologies. It provides a BIM-based prefabricated building transaction platform, including an information database and a modeling and matching practical operation module communicating with the database. The modeling and matching practical operation module includes:

[0005] The BIM 3D model management submodule is used to manage BIM 3D models in the information database. The BIM 3D model management submodule includes: a model upload submodule for uploading established models, a modeling and modeling submodule for modeling and modeling, a model management submodule for adding or modifying established or uploaded models, and a model comparison submodule for matching corresponding products from the information database based on existing models.

[0006] The product search and matching submodule communicates with the BIM 3D model management submodule. This submodule is used to search for and match products within the BIM 3D model database after the models have been uploaded, modeled, modified, added, or compared by the BIM 3D model management submodule. The product search and matching submodule includes: a model parameter search submodule for searching products based on parameters of the desired products in the model; a text description search submodule for searching products based on text descriptions; a general price comparison submodule for sorting and comparing prices based on user-selected price or transportation distance factors; and a solution recommendation submodule for recommending the best solution based on a combination of factors including production capacity and transportation distance.

[0007] The component model display submodule communicates and connects with the BIM 3D model management submodule and the product search and matching submodule. This submodule displays BIM 3D models from the database after they have been uploaded, modeled, modified, or compared by the BIM 3D model management submodule, or after parameter searching, text description searching, general price comparison, and scheme recommendation by the product search and matching submodule. The component model display submodule includes: a 3D display submodule for 3D model display, a drawing display submodule for drawing model display, a video display submodule for video model display, and a simulation display submodule for online model splicing, disassembly, and simulation display.

[0008] Furthermore, the prefabricated building trading platform based on BIM technology provided by this invention also includes:

[0009] The user general module is connected to the modeling and matching practice module. The user general module is used by manufacturers to upload their own information and information on the components they can produce to the information database. It is also used by manufacturers, designers, construction companies, and purchasers to master the functions of the modeling and matching practice module, and for communication between manufacturers, designers, construction companies, and purchasers.

[0010] The platform service guarantee module is communicatively connected to the user general module and the modeling and matching practice module; the platform service guarantee module is used to ensure the information security protection of users and merchants, maintain and upgrade the platform, and provide assistance and problem feedback to users and merchants.

[0011] Furthermore, the prefabricated building trading platform based on BIM technology provided by this invention also includes:

[0012] The inter-module communication module is communicatively connected to the user general module, the modeling and matching practice module, and the platform service guarantee module; the inter-module communication module is used to ensure the mutual connection and information exchange between the functions of the user general module, the modeling and matching practice module, and the platform service guarantee module.

[0013] Furthermore, the user general module includes:

[0014] The User Introduction submodule is used to introduce how to use the platform.

[0015] The user registration and login submodule is used for new user registration, platform user login, and merchant login. Platform users include construction units and design units, and merchants include prefabricated component manufacturers, component manufacturers, and material suppliers.

[0016] The user profile review submodule is used to review users' personal information, company size information, and qualifications.

[0017] The Merchant Information Management submodule is used to add and modify merchant information.

[0018] The user center management submodule is used to view historical transaction records and records of products that have been favorited and liked.

[0019] The community forum management submodule is used for leaving messages and communicating with other users or businesses.

[0020] Furthermore, the modeling and matching practice module also includes:

[0021] The contract management submodule is used to manage contracts related to the platform;

[0022] The quotation management submodule is used to add and modify quotations;

[0023] The transaction management submodule is used to add and modify transaction records;

[0024] The personalized push notification submodule is used to create personalized push notifications based on search history, make recommendations based on user needs, and create push notifications for reminders.

[0025] Furthermore, the platform service guarantee module includes:

[0026] The database maintenance submodule is used to read and modify the data stored in the database, perform daily maintenance on the platform database, and prepare contingency plans and emergency responses.

[0027] The information security management submodule is used to maintain and upgrade information security measures.

[0028] The service terminal management submodule is used to view and customize service terminals;

[0029] The customer service center management submodule is used for users to communicate directly with customer service, submit opinions, and provide feedback on platform usage;

[0030] The platform maintenance and management submodule is used for the platform's daily maintenance, upgrading existing software, expanding and testing functions, and system monitoring and emergency response.

[0031] The database includes a product database containing information and models of all products provided by platform merchants, a user information database containing various types of information of platform users, and a merchant information database containing various types of information of platform merchants.

[0032] Furthermore, the method of using the prefabricated building trading platform provided by the present invention includes the following steps:

[0033] Manufacturers upload their own information and information on the components they can produce to the database through the user-defined module;

[0034] Designers and construction teams can use the BIM 3D model management submodule in the modeling and matching practice module to upload, set model parameter ranges, model and reverse model, manage, and compare BIM 3D models to generate compliant BIM 3D models. They can also use the component model display submodule in the modeling and matching practice module to display the generated compliant BIM 3D models in 3D, as well as in drawings, videos, and simulations.

[0035] Based on the generated compliant BIM 3D model, the purchaser uses the product search and matching sub-module in the modeling and matching practice module to search for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance from the information database through model parameter search, text search, general price comparison, and solution recommendation, and pushes customized procurement information to the manufacturers.

[0036] Meanwhile, manufacturers, designers, construction companies, and purchasers can master the functions of the modeling and matching practical module through the user general module, as well as communicate with each other.

[0037] The platform's service guarantee module provides both parties with information management, payment guarantees, credit rating, and after-sales contact services during the transaction process, thereby reducing transaction costs.

[0038] Furthermore, based on the generated compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module to search the information database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance through model parameter search, text search, general price comparison, and solution recommendation. Customized procurement information is then pushed to these manufacturers, specifically including:

[0039] Purchasing users can find relevant products through the product search and matching submodule;

[0040] Purchasing users can select suitable suppliers by sorting and filtering based on price, distance, and freight factors through the general price comparison submodule, or by recommending the best solution through the solution recommendation submodule.

[0041] Purchasing users can make product purchases based on the selected suitable vendors or the recommended optimal solution.

[0042] Furthermore, based on the generated compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module to search the information database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance through model parameter search, text search, general price comparison, and solution recommendation. Customized procurement information is then pushed to these manufacturers. This also includes:

[0043] Modeling users can discuss and modify models through the modeling functions of the BIM 3D model management submodule;

[0044] The product search and matching submodule matches products with relevant parameters in the information database based on the built model. If there are no products with relevant parameters in the information database, the modeling user can find the corresponding products through the product search and matching submodule.

[0045] Modeling users can select suitable merchants by sorting and filtering based on price, shipping distance, and shipping costs using the general price comparison submodule, or by recommending the optimal solution using the solution recommendation submodule.

[0046] The modeling user makes a product purchase based on the selected suitable merchant or the recommended optimal solution.

[0047] Furthermore, based on the generated compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module to search the information database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance through model parameter search, text search, general price comparison, and solution recommendation. Customized procurement information is then pushed to these manufacturers. This also includes:

[0048] Merchants can view received orders through the general user module. After confirming that the orders are correct, they can use the product search and matching sub-module to search for the corresponding material suppliers or directly start product production.

[0049] Compared with existing technologies, the present invention provides a prefabricated building transaction platform based on BIM technology and its usage method, which has the following advantages:

[0050] This trading platform combines prefabricated construction with BIM technology, transforming one-dimensional and two-dimensional text drawings into a three-dimensional model for a more intuitive experience for all project stakeholders. The building model can be saved to the user's personal center for easy viewing, and model modifications can be quickly disseminated to any party involved in the project, ensuring information symmetry. Users can search and select the prefabricated components and parts they need from the BIM product models displayed by manufacturers. They can also quickly find suppliers with the necessary molds by matching the components and parts used in the building model through the backend product database. Users can sort by factors such as price and shipping distance, and the platform can also provide optimal solutions from multiple manufacturers for selection. This trading platform improves the efficiency of transactions between prefabricated component and part manufacturers and demanders, increases production scale, and reduces mold costs. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the trading platform framework provided by the present invention;

[0052] Figure 2 A simplified diagram of transaction relationships provided for embodiments of the present invention;

[0053] Figure 3 This is a schematic diagram of the overall process provided for an embodiment of the present invention;

[0054] Figure 4 This is a schematic diagram of the purchasing process for procurement users provided in an embodiment of the present invention;

[0055] Figure 5 This is a schematic diagram of the modeling user operation process provided in an embodiment of the present invention;

[0056] Figure 6 This is a schematic diagram of the manufacturer's operation process provided in an embodiment of the present invention. Detailed Implementation

[0057] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 The following describes specific embodiments of the present invention in further detail. These embodiments are merely for illustrating the technical solutions of the present invention more clearly and should not be construed as limiting the scope of protection of the present invention.

[0058] Example 1: This example describes the prefabricated building transaction platform based on BIM technology provided in Example 1, including an information database and a modeling and matching practice module connected to the information database. The modeling and matching practice module includes: a BIM 3D model management submodule for managing BIM 3D models in the information database; the BIM 3D model management submodule includes: a model upload submodule for uploading established models, a modeling and modeling conversion submodule for modeling and modeling conversion, a model management submodule for adding or modifying established or uploaded models, and a model comparison submodule for matching corresponding products from the information database based on existing models; a product search and matching submodule, connected to the BIM 3D model management submodule, for searching and matching products in the information database after the BIM 3D models have been uploaded, modeled and modeled, added or modified, and compared by the BIM 3D model management submodule; the product search and matching submodule includes: a module for searching for products based on the parameters of the required products in the model. The system comprises several modules: a parameter search submodule, a text description search submodule for searching products based on text descriptions, a general price comparison submodule for sorting and comparing prices based on user-selected price or transportation distance factors, and a solution recommendation submodule for recommending the best solution based on a combination of factors including production capacity and transportation distance. A component model display submodule communicates with the BIM 3D model management submodule and the product search and matching submodule. This submodule displays BIM 3D models from the database after being uploaded, modeled, modified, or compared by the BIM 3D model management submodule, or after parameter search, text description search, general price comparison, and solution recommendation by the product search and matching submodule. The component model display submodule includes: a 3D display submodule for 3D model display, a drawing display submodule for drawing model display, a video display submodule for video model display, and a simulation display submodule for online model splicing, disassembly, and simulation display.

[0059] In this embodiment, the prefabricated building trading platform based on BIM technology provided by the present invention further includes: a user general module, which is communicatively connected to the modeling and matching practice module; the user general module is used by manufacturers to upload their own information and information on the components they can produce to the information database, and is also used by manufacturers, designers, construction companies, and purchasers to understand the functions of the modeling and matching practice module, as well as for communication among manufacturers, designers, construction companies, and purchasers; and a platform service guarantee module, which is communicatively connected to the user general module and the modeling and matching practice module; the platform service guarantee module is used to ensure the information security protection of users and merchants, maintain and upgrade the platform, and provide assistance and problem feedback to users and merchants.

[0060] In this embodiment, the prefabricated building transaction platform based on BIM technology provided by the present invention further includes: an inter-module communication module, which is communicatively connected with the user general module, the modeling matching practice module, and the platform service guarantee module; the inter-module communication module is used to ensure the mutual connection and information exchange between the functions of the user general module, the modeling matching practice module, and the platform service guarantee module.

[0061] In this embodiment, the general user modules include: a user introduction submodule, used to introduce the use of the platform; a user registration and login submodule, used for new user registration, platform user login, and merchant login, where platform users include construction units and design units, and merchants include precast component manufacturers, component manufacturers, and material suppliers; a user profile review submodule, used to review users' personal information, company size information, and qualifications; a merchant information management submodule, used to add and modify merchant information; a user center management submodule, used to view historical transaction records and view records of favorited and liked products; and a community forum management submodule, used to communicate with other users or merchants through messages.

[0062] In this embodiment, the modeling and matching practice module further includes: a contract management submodule, used to manage contracts related to the platform; a quotation management submodule, used to add and modify quotations; a transaction management submodule, used to add and modify transaction records; and a personalized push submodule, used to create personalized push notifications based on search records, make recommendations based on user needs, and create push notifications for reminders.

[0063] In this embodiment, the platform service guarantee module includes: a database maintenance submodule, used for reading and modifying data stored in the database, performing daily maintenance of the platform database, and developing contingency plans and emergency response plans; an information security management submodule, used for maintaining and upgrading information security work; a service terminal management submodule, used for viewing and customizing service terminals; a customer service center management submodule, used for users to communicate directly with customer service, submit opinions, and provide feedback on platform usage; and a platform maintenance management submodule, used for daily platform maintenance, upgrading existing platform software, expanding and testing functions, and monitoring and responding to emergencies. The database includes a product database containing information and models of all products provided by platform merchants, a user information database containing various types of information about platform users, and a merchant information database containing various types of information about platform merchants.

[0064] In this embodiment, the method of using the prefabricated building trading platform provided by the present invention includes the following steps: Manufacturers upload their own information and information on producible components to the information database through the user general module; designers and construction parties upload, set model parameter ranges, perform modeling and model conversion, manage, and compare BIM 3D models through the BIM 3D model management submodule in the modeling and matching practice module to generate a compliant BIM 3D model; and through the component model display submodule in the modeling and matching practice module, perform 3D display, drawing display, video display, and simulation display of the generated compliant BIM 3D model; the purchaser, based on the generated compliant... The BIM 3D model, through the product search and matching sub-module in the modeling and matching practice module, utilizes model parameter search, text search, general price comparison, and solution recommendation to find manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance from the information database, and pushes customized procurement information to manufacturers. At the same time, manufacturers, designers, construction parties, and purchasers can master the functions of the modeling and matching practice module through the user general module, and communicate with each other. Through the platform service guarantee module, information management, payment guarantee, credit evaluation, and after-sales contact services are provided for both parties in the transaction process, reducing transaction costs.

[0065] In this embodiment, based on the generated compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module to search the database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance through model parameter search, text search, general price comparison, and solution recommendation. Customized procurement information is then pushed to these manufacturers. Specifically, the purchasing user searches for relevant products through the product search and matching submodule; based on the searched products, the purchasing user sorts and filters suitable suppliers by price, transportation distance, and freight costs through the general price comparison submodule, or recommends the optimal solution through the solution recommendation submodule; and the purchasing user purchases the product based on the selected suitable supplier or the recommended optimal solution.

[0066] In this embodiment, based on the generated compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module to search the database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance, utilizing model parameter search, text search, general price comparison, and solution recommendation. Customized procurement information is then pushed to these manufacturers. The process also includes: modeling users discussing and modifying the model through the modeling function of the BIM 3D model management submodule; the product search and matching submodule matching products with relevant parameters in the database based on the built model; if no relevant products are found in the database, the modeling user searches for corresponding products through the product search and matching submodule; based on the found products, the modeling user sorts and filters suitable suppliers based on price, transportation distance, and freight costs through the general price comparison submodule, or recommends the optimal solution through the solution recommendation submodule; and finally, the modeling user purchases the product based on the selected suitable supplier or the recommended optimal solution.

[0067] In this embodiment, based on the generated compliant BIM 3D model, the purchaser uses the product search and matching submodule in the modeling and matching practice module to search the information database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance through model parameter search, text search, general price comparison, and solution recommendation. Customized procurement information is then pushed to the manufacturers. The system also includes: merchants viewing the received orders through the user general module, and after confirming that they are correct, searching for the corresponding material suppliers or directly starting product production through the product search and matching submodule.

[0068] Example 2: This example further explains and illustrates the prefabricated building transaction platform based on BIM technology and its usage method provided in Example 1.

[0069] This invention provides a prefabricated building transaction platform based on BIM technology, comprising four main modules: a user-friendly module, a modeling and matching practice module, a platform service guarantee module, and the interrelationships between these modules. (See details...) Figure 1 .

[0070] The general user module mainly includes user introduction, user registration and login, user profile verification, merchant information management, user center management, and community forum management (see Table 1). This general user module is designed for all users and merchants, enabling platform users to easily master the use of various platform functions, ensuring that platform users possess certain qualifications, and facilitating communication among users regarding products, merchants, and more.

[0071] The modeling and matching practice module mainly includes BIM 3D model management, component model display, product search and matching, contract management, quotation management, transaction management, and personalized push notifications (see Table 2). This module encompasses all the platform's functionalities and the supporting role played by the backend. The platform's main BIM model management, merchant product model display, and product search and matching functions are all located in this module. Contract management, quotation management, and transaction management are also essential auxiliary measures for users during platform operation. Furthermore, this module utilizes cloud technology to ensure normal user operation.

[0072] The platform service guarantee module mainly includes database maintenance, information security management, service terminal management, customer service center management, and platform maintenance management (see Table 3). This module focuses on protecting the information security of users and merchants, as well as maintaining and upgrading the platform. It also includes a customer service center to provide necessary assistance and problem feedback to users and merchants.

[0073] The inter-module relationships are mainly used to ensure the inter-module and inter-function communication and information exchange between various modules and functions of the platform, so as to ensure the normal operation of the platform.

[0074] Table 1 Introduction to User General Modules

[0075]

[0076]

[0077] Table 2 Introduction to the Modeling and Matching Practice Module

[0078]

[0079] Table 3. Introduction to Platform Service Guarantee Module

[0080]

[0081] This technical solution designs a new trading model for prefabricated components and parts for prefabricated buildings, based on BIM technology and machine learning algorithms, reflecting the development direction of digital technology-enabled transformation and upgrading of the construction industry. The trading relationships corresponding to the platform designed in this technical solution are detailed below. Figure 2 .

[0082] The application scenarios of this technical solution include, but are not limited to:

[0083] A. Manufacturers provide their own information and information on the components they can produce to form a platform information database;

[0084] B. The design and construction parties shall upload the BIM 3D model of the procurement target to the platform and allow setting the range of model parameters;

[0085] C. The platform provides intelligent matching functions to find manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance for buyers, and can also push customized procurement information to manufacturers.

[0086] D. The platform provides both parties with services such as information management, payment guarantee, credit evaluation, and after-sales contact during the transaction process, effectively reducing transaction costs.

[0087] The operating procedures of this platform include, but are not limited to:

[0088] (1) Overall Flowchart of Platform Usage

[0089] When users log in to the platform, they can follow the process below to create a model or search for products. Users can be divided into users who need to create a model and regular buyers, and the two groups can use two different processes to complete transactions.

[0090] (See Figure 3 )

[0091] (2) Direct purchase process by purchasing users

[0092] Purchasing users can directly search for products based on different search criteria, compare prices under different conditions, or select the best supplier through platform recommendations and then pay for the order (see [link]). Figure 4 ).

[0093] (3) Modeling the user platform usage process

[0094] Users who need to model can create, modify, or upload existing models online after logging into the platform. They can then find corresponding vendors and compare prices using the component search or model matching functions. After confirmation, they can submit their orders (see [link]). Figure 5 ).

[0095] (4) Manufacturer's usage process

[0096] After logging into the platform, merchants can view the orders they have received. Once confirmed, they can search for the necessary material suppliers or directly begin product production. After production is completed and the goods are shipped, merchants can withdraw the production fee paid by the user from the platform upon user confirmation (see [link]). Figure 6 ).

[0097] In summary, compared with existing technologies, the prefabricated building transaction platform based on BIM technology and its usage method provided by this invention have the following advantages:

[0098] This trading platform combines prefabricated construction with BIM technology, transforming one-dimensional and two-dimensional text drawings into a three-dimensional model for a more intuitive experience for all project stakeholders. The building model can be saved to the user's personal center for easy viewing, and model modifications can be quickly disseminated to any party involved in the project, ensuring information symmetry. Users can search and select the prefabricated components and parts they need from the BIM product models displayed by manufacturers. They can also quickly find suppliers with the necessary molds by matching the components and parts used in the building model through the backend product database. Users can sort by factors such as price and shipping distance, and the platform can also provide optimal solutions from multiple manufacturers for selection. This trading platform improves the efficiency of transactions between prefabricated component and part manufacturers and demanders, increases production scale, and reduces mold costs.

[0099] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0100] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A prefabricated building transaction platform based on BIM technology, characterized in that, Includes an information database and a modeling and matching practice module that communicates with the information database; The modeling and matching practice module includes: The BIM 3D model management submodule is used to manage BIM 3D models in the information database. The BIM 3D model management submodule includes: a model upload submodule for uploading established models, a modeling and modeling submodule for modeling and modeling, a model management submodule for adding or modifying established or uploaded models, and a model comparison submodule for matching corresponding products from the information database based on existing models. The product search and matching submodule communicates with the BIM 3D model management submodule. This submodule is used to search for and match products within the BIM 3D model database after the models have been uploaded, modeled, modified, added, or compared by the BIM 3D model management submodule. The product search and matching submodule includes: a model parameter search submodule for searching products based on parameters of the desired products in the model; a text description search submodule for searching products based on text descriptions; a general price comparison submodule for sorting and comparing prices based on user-selected price or transportation distance factors; and a solution recommendation submodule for recommending the best solution based on a combination of factors including production capacity and transportation distance. The component model display submodule communicates and connects with the BIM 3D model management submodule and the product search and matching submodule. This submodule displays BIM 3D models from the database after they have been uploaded, modeled, modified, or compared by the BIM 3D model management submodule, or after parameter searching, text description searching, general price comparison, and scheme recommendation by the product search and matching submodule. The component model display submodule includes: a 3D display submodule for 3D model display, a drawing display submodule for drawing model display, a video display submodule for video model display, and a simulation display submodule for online model splicing, disassembly, and simulation display.

2. The prefabricated building transaction platform based on BIM technology as described in claim 1, characterized in that, Also includes: The user general module is communicatively connected to the modeling and matching practice module. The general user module is used by manufacturers to upload their own information and information on the components they can produce to the information database. It is also used by manufacturers, designers, construction companies, and purchasers to master the functions of the modeling and matching practical module, and for communication among manufacturers, designers, construction companies, and purchasers. The platform service guarantee module is communicatively connected to the user general module and the modeling and matching practice module; the platform service guarantee module is used to ensure the information security protection of users and merchants, maintain and upgrade the platform, and provide assistance and problem feedback to users and merchants.

3. The prefabricated building transaction platform based on BIM technology as described in claim 2, characterized in that, Also includes: The inter-module communication module is communicatively connected to the user general module, the modeling and matching practice module, and the platform service guarantee module; the inter-module communication module is used to ensure the mutual connection and information exchange between the functions of the user general module, the modeling and matching practice module, and the platform service guarantee module.

4. The prefabricated building transaction platform based on BIM technology as described in claim 2, characterized in that, The user-general module includes: The User Introduction submodule is used to introduce how to use the platform. The user registration and login submodule is used for new user registration, platform user login, and merchant login. Platform users include construction units and design units, and merchants include prefabricated component manufacturers, component manufacturers, and material suppliers. The user profile review submodule is used to review users' personal information, company size information, and qualifications. The Merchant Information Management submodule is used to add and modify merchant information. The user center management submodule is used to view historical transaction records and records of products that have been favorited and liked. The community forum management submodule is used for leaving messages and communicating with other users or businesses.

5. The prefabricated building transaction platform based on BIM technology as described in claim 1, characterized in that, The modeling and matching practice module also includes: The contract management submodule is used to manage contracts related to the platform; The quotation management submodule is used to add and modify quotations; The transaction management submodule is used to add and modify transaction records; The personalized push notification submodule is used to create personalized push notifications based on search history, make recommendations based on user needs, and create push notifications for reminders.

6. The prefabricated building transaction platform based on BIM technology as described in claim 2, characterized in that, The platform service guarantee module includes: The database maintenance submodule is used to read and modify the data stored in the database, perform daily maintenance on the platform database, and prepare contingency plans and emergency responses. The information security management submodule is used to maintain and upgrade information security measures. The service terminal management submodule is used to view and customize service terminals; The customer service center management submodule is used for users to communicate directly with customer service, submit opinions, and provide feedback on platform usage; The platform maintenance and management submodule is used for the platform's daily maintenance, upgrading existing software, expanding and testing functions, and system monitoring and emergency response. The database includes a product database containing information and models of all products provided by platform merchants, a user information database containing various types of information of platform users, and a merchant information database containing various types of information of platform merchants.

7. A method of using a prefabricated building transaction platform based on BIM technology as described in any one of claims 1-6, characterized in that, Includes the following steps: Manufacturers upload their own information and information on the components they can produce to the database through the user-defined module; Designers and construction teams can use the BIM 3D model management submodule in the modeling and matching practice module to upload, set model parameter ranges, model and reverse model, manage, and compare BIM 3D models to generate compliant BIM 3D models. They can also use the component model display submodule in the modeling and matching practice module to display the generated compliant BIM 3D models in 3D, as well as in drawings, videos, and simulations. Based on the generated compliant BIM 3D model, the purchaser uses the product search and matching sub-module in the modeling and matching practice module to search for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance from the information database through model parameter search, text search, general price comparison, and solution recommendation, and pushes customized procurement information to the manufacturers. Meanwhile, manufacturers, designers, construction companies, and purchasers can master the functions of the modeling and matching practical module through the user general module, as well as communicate with each other. The platform's service guarantee module provides both parties with information management, payment guarantees, credit rating, and after-sales contact services during the transaction process, thereby reducing transaction costs.

8. The method of using the prefabricated building transaction platform based on BIM technology as described in claim 7, characterized in that, Based on the generated, compliant BIM 3D model, the purchasing party uses the product search and matching submodule within the modeling and matching practice module. Utilizing model parameter search, text search, general price comparison, and solution recommendations, they search the database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance. Customized procurement information is then pushed to these manufacturers, specifically including: Purchasing users can find relevant products through the product search and matching submodule; Purchasing users can select suitable suppliers by sorting and filtering based on price, distance, and freight factors through the general price comparison submodule, or by recommending the best solution through the solution recommendation submodule. Purchasing users can make product purchases based on the selected suitable vendors or the recommended optimal solution.

9. The method of using the prefabricated building transaction platform based on BIM technology as described in claim 7, characterized in that, Based on the generated, compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module. Utilizing model parameter search, text search, general price comparison, and solution recommendation, it searches the database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance. Customized procurement information is then pushed to these manufacturers. This also includes: Modeling users can discuss and modify models through the modeling functions of the BIM 3D model management submodule; The product search and matching submodule matches products with relevant parameters in the information database based on the built model. If there are no products with relevant parameters in the information database, the modeling user can find the corresponding products through the product search and matching submodule. Modeling users can select suitable merchants by sorting and filtering based on price, shipping distance, and shipping costs using the general price comparison submodule, or by recommending the optimal solution using the solution recommendation submodule. The modeling user makes a product purchase based on the selected suitable merchant or the recommended optimal solution.

10. The method of using the prefabricated building transaction platform based on BIM technology as described in claim 7, characterized in that, Based on the generated, compliant BIM 3D model, the purchasing party uses the product search and matching submodule in the modeling and matching practice module. Utilizing model parameter search, text search, general price comparison, and solution recommendation, it searches the database for manufacturers with production capacity and cost-effectiveness in terms of price and transportation distance. Customized procurement information is then pushed to these manufacturers. This also includes: Merchants can view received orders through the general user module. After confirming that the orders are correct, they can use the product search and matching sub-module to search for the corresponding material suppliers or directly start product production.

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