Drawing change and completion delivery method and device based on BIM and artificial intelligence

By combining BIM with artificial intelligence, the problem of low efficiency in drawing management in engineering projects has been solved, and the delivery of as-built models has been made digital and paperless throughout the entire process, which has improved the accuracy and efficiency of construction and provided reliable engineering change records.

CN121580472APending Publication Date: 2026-02-27CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Application Number
CN202511570504.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing technologies are inefficient in managing drawings in engineering projects, prone to information errors, and inconsistent with the actual site, leading to construction deviations and increased management costs. Furthermore, there is a lack of paperless and automated solutions for the entire process.

Method used

By adopting a BIM and artificial intelligence-based approach, through parametric 3D model construction, intelligent identification and storage of changed models, immersive visual briefing, and dynamic calculation of engineering quantities, we achieve full-process digital management from drawing changes to final delivery. We also combine blockchain technology to ensure the credibility and immutability of information.

Benefits of technology

It enables paperless, high-precision as-built model delivery, reduces human error and misunderstanding, improves construction efficiency and quality, provides a reliable engineering change history, and supports dynamic accounting and one-time high-standard delivery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the invention provides a drawing change and completion delivery method based on BIM and artificial intelligence. The method comprises the following steps: automatically constructing a parameterized three-dimensional model in Revit by utilizing an AI plug-in; design changes are intelligently recognized through a BIM engine, and a traceable change branch model is generated; carrying out credible evidence storage and visual marking on the change information by adopting a block chain; the lightweight model is used for field visualization disclosure; dynamically accounting the change project amount and confirming the right by stages; and finally, integrating all changes to generate a completion BIM model, and performing permanent delivery by using a distributed account book. According to the method and the system, full-process digital and intelligent management from drawing change to completion delivery is realized, the problems of low efficiency, information mistakes and omissions, inconsistency between a completion drawing and a site and the like in a traditional paper management mode are effectively solved, and the engineering management efficiency and quality are remarkably improved.
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Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the technical field of building engineering information management, in particular to a drawing change and completion delivery method and device based on BIM and artificial intelligence. BACKGROUND

[0002] At present, the drawing management of most domestic engineering projects still stays in the stage of paper-based drawings. During the project construction process, the design institute will issue design change drawings according to the actual situation on site. The project department needs to distribute these paper change drawings to each relevant department and subcontracting unit, and the on-site construction personnel need to refer to the change drawings for construction and review. For complex structure or node changes, due to subjective differences in the understanding of drawings by different personnel, it is easy to cause construction deviation, even causing rework, affecting the construction period and increasing the cost. After the completion of the project, the data clerk needs to manually mark and modify the design blueprints one by one for all professional design changes such as building, structure, water supply and drainage, electricity, heating and ventilation, in order to draw the completion drawings. This work is heavy, tedious, and is easy to cause incomplete information and inconsistency with the actual situation on site due to human negligence. Such inconsistency will cause repeated modification and confirmation in the subsequent engineering settlement and data archiving process, which seriously restricts the efficiency and accuracy of drawing management, and has become a bottleneck restricting the fine management and digital delivery of engineering projects.

[0003] Although BIM technology has been applied in the architectural design stage, in the drawing change management and completion delivery link, there is still no set of front-end technologies such as artificial intelligence and block chain that can realize the whole process and automatic solution from change identification, model updating, credible notarization to paperless delivery. SUMMARY

[0004] Therefore, the purpose of the present application is to overcome the above-mentioned defects of the prior art, and to provide a drawing change and completion delivery management method based on BIM and artificial intelligence. This method aims to solve the problems of low efficiency, information errors, and inconsistency between completion drawings and the site in the paper-based office mode through digital and intelligent technical means, and ultimately realize paperless, high-precision, and traceable completion model delivery.

[0005] In a first aspect, the embodiment of the present disclosure provides a drawing change and completion delivery method based on BIM and artificial intelligence, including the following steps: Parametric three-dimensional model construction step: based on the initial design drawings, the drawing information is automatically parsed in the BIM modeling software by using the artificial intelligence plug-in, a three-dimensional BIM model containing complete component parameters is generated, and cross-professional collision detection and optimization are automatically performed; Intelligent recognition and version management of change model: After receiving the design change drawing, the engine is used to automatically compare and mark the difference area, create a change branch in the BIM software, generate a change model copy, and save a version snapshot; Trusted evidence and marking of change information: The three-dimensional model key information after the change is stored by using the blockchain technology, and the change component is visually marked by using the digital label in the model; Immersive visual briefing step: The changed three-dimensional model is lightened and converted into a format suitable for Web and mobile terminal, and visual display and briefing are performed through terminal equipment; Dynamic engineering quantity accounting and staged right confirmation step: The change content is integrated according to the preset period, the engineering quantity change is automatically recalculated and counted through the synchronization of the model and the database, and an engineering quantity comparison report is generated; Certification and paperless delivery of completed model: After project completion and acceptance, all design change information is integrated into the final three-dimensional model to generate a completed BIM model, and the distributed ledger technology is used for storage and delivery.

[0006] Further, in the parameterized three-dimensional model construction step, the artificial intelligence plug-in is an image recognition module based on machine learning, which is used to automatically recognize information in the CAD drawing and convert it into a parameterized component in the BIM software.

[0007] Further, the optimization scheme of the collision detection is assisted by a decision module based on a large language model, which can recommend optimization schemes and estimate the engineering quantity influence of each scheme.

[0008] Further, in the trusted evidence and marking of change information step, the blockchain technology adopts a consortium chain; and the digital label is a three-dimensional annotation containing a blockchain hash value.

[0009] Further, in the immersive visual briefing step, the lightweight and visualization of the model are realized by a lightweight engine of the model.

[0010] Further, in the certification and paperless delivery of completed model step, the distributed ledger technology is IOTA Tangle.

[0011] In a second aspect, the embodiments of the present disclosure provide a drawing change and completion delivery method based on BIM and artificial intelligence, comprising: The construction module is used for parameterized three-dimensional model construction step: based on the initial design drawing, the artificial intelligence plug-in is used to automatically analyze the drawing information in the BIM modeling software, a three-dimensional BIM model containing complete component parameters is generated, and cross-professional collision detection and optimization are automatically performed; The change module is used for intelligent identification and version management of the model. When receiving the design change drawing, the engine is used to automatically compare and mark the difference area, create a change branch in the BIM software, generate a change model copy, and save a version snapshot. The marking module is used for credible evidence storage and marking of change information. The blockchain technology is used to store the key information of the changed three-dimensional model, and the digital label is used to visually mark the changed components in the model. The conversion module is used for immersive visual presentation step. The changed three-dimensional model is processed and converted into a format suitable for Web and mobile terminal, and visual display and presentation are performed through terminal equipment. The comparison module is used for dynamic calculation and staged right confirmation of engineering quantity. The change content is integrated according to the preset period, the engineering quantity change is automatically recalculated and counted through the synchronization of the model and the database, and the engineering quantity comparison report is generated. The delivery module is used for authentication and paperless delivery of the completed model. After the project is completed and accepted, all design change information is integrated into the final three-dimensional model, the completed BIM model is generated, and the distributed ledger technology is used for evidence storage and delivery.

[0012] In a third aspect, an electronic device is provided, and the electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform any of the preceding methods.

[0013] In a fourth aspect, an electronic device and a non-transitory computer-readable storage medium are provided. The non-transitory computer-readable storage medium stores computer instructions for causing the computer to perform any of the preceding methods.

[0014] Beneficial effects: Paperless and digitization throughout the process: completely abandon the traditional paper drawing management mode, from model creation, change management to final delivery are completed on the digital platform, greatly improving the work efficiency and reducing the management cost. Intelligent precision and automatic efficiency: using AI technology to automatically identify drawing changes, collision checking and scheme optimization, reducing human error and understanding deviation, significantly improving the accuracy and efficiency of drawing change processing. Information traceable and safe and reliable: introduce blockchain technology to store the key information of changes, ensure the authenticity and non-tamperability of the engineering change history, and provide a reliable basis for engineering settlement and audit. Visualized briefing and construction guidance: visualized briefing through lightweight 3D model, making the construction personnel understand the complex changes at a glance, effectively reducing construction errors and rework, improving the efficiency and quality of on-site construction. Dynamic accounting and efficient delivery: realize the dynamic and automatic accounting of engineering quantity, which is convenient for staged right confirmation. The final delivery completion model is complete and accurate, avoiding the mistakes in traditional as-built drawing, realizing "one model to the end" and one-time high-standard delivery. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0016] Figure 1 The whole process schematic diagram of the method is provided.

[0017] Figure 2 The device structure schematic diagram provided by the embodiments of the present disclosure is provided. Figure 3 The electronic device schematic diagram provided by the embodiments of the present disclosure is provided. DETAILED DESCRIPTION

[0018] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0019] Following make the embodiments of the present disclosure through specific, the person skilled in the art can easily understand the other advantages and effects of the present disclosure from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all. The present disclosure can also be implemented or applied by another different specific embodiment, and the details in the specification can be based on different views and applications, and various modifications or changes can be made without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0020] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the disclosure provided, one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that two or more of these aspects can be combined in various ways. For example, an apparatus can be implemented and / or a method can be practiced using any number of the aspects set forth herein. In addition, such an apparatus can be implemented and / or such a method can be practiced using other structure and / or functionality in addition to or other than one or more of the aspects set forth herein.

[0021] It should also be noted that the drawings provided in the following embodiments are only schematic - actual dimensions and shapes of the components can be varied as a matter of design choice, and the layouts of the components can be more complex than what is shown.

[0022] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, one skilled in the art will understand that the described aspects can be practiced without these specific details.

[0023] The embodiments of the present disclosure provide a drawing change and completion delivery management method based on BIM and artificial intelligence, as shown in Figure 1 The core is to build a collaborative management platform centered on intelligent BIM model, integrating AI, blockchain and cloud visualization technology.

[0024] In a large commercial complex project, the specific process of implementing the method is as follows: Initial model construction S1: In one possible implementation, the parametric three-dimensional model construction step: based on the initial design drawings, use artificial intelligence plugins in BIM modeling software to automatically parse drawing information, generate three-dimensional BIM models containing complete component parameters, and automatically perform cross-disciplinary collision detection and optimization.

[0025] For example: At the beginning of the project, technical personnel import AutoCAD design drawings of architecture, structure, and MEP (mechanical and electrical piping) into Revit software installed with Cognitive Services AI plugins. The plugin automatically identifies components such as walls, columns, beams, and pipes in the drawings and their annotations, and converts them into parametric Revit models. At the same time, the system automatically performs cross-disciplinary collision detection and finds a conflict between a ventilation pipe and a structural beam. The decision module driven by GPT-4 provides two optimization schemes: "ventilation pipe detour" and "hole in beam", and calculates the respective cost increments for engineers to make decisions.

[0026] Handling design changes S2: In one possible implementation, the intelligent identification and version management of the change model step: when receiving the design change drawings, use the engine to automatically compare and mark the difference areas, create a change branch in the BIM software, generate a change model copy, and save a version snapshot.

[0027] For example: During construction, the owner proposes to modify the lobby ceiling design. After the design institute issues the change drawing, the project BIM engineer imports the electronic version of the change drawing into the system.

[0028] The BIM engine automatically compares and accurately locates the ceiling component family that needs to be modified. Then, the engineer uses the "design option" function in Revit to create "original design" and "new ceiling design" options, generating a change branch model. The system automatically performs a new round of collision analysis on this area to ensure that the new ceiling design does not conflict with lamps, sprinkler heads, etc. This change record is saved together with the timestamp and responsible person.

[0029] Information storage and marking S3: In one possible implementation, the trusted storage and marking of change information step: use blockchain technology to store the key information of the changed three-dimensional model, and use digital tags to visually mark the changed components in the model.

[0030] For example: after the ceiling change model is confirmed, the system calls the smart contract deployed on the Hyperledger Fabric blockchain to store the number of this change (such as CC-2023-001), time, and key information such as major engineering quantity changes (such as an increase of XX square meters of gypsum board) on the chain. At the same time, using the Dynamo plug-in of Revit, a three-dimensional annotation label is automatically generated next to the changed ceiling component, and the hash value of the blockchain record of this change is embedded in the label, like a "digital identity card" of the component. Further explanation, the system mainly includes "Revit model end", "blockchain storage platform" and "model marking module". For example: first, the change information confirmed in Revit (such as change number CC-2023-001, time, engineering quantity) is sent to the "blockchain storage platform" (Hyperledger Fabric is used in this embodiment). The platform calls the "smart contract" to package and chain the information, and generates a unique and tamper-proof "transaction hash (TxHash); At the same time, the "model marking module" (implemented through Dynamo script) will obtain the TxHash, and "generate a three-dimensional digital label" next to the corresponding ceiling component in the Revit model, which embeds the hash value, like a "digital identity card" of the component. This mechanism ensures the authenticity and traceability of the change information.

[0031] On-site visual briefing S4: In one possible implementation, the immersive visual briefing step: the changed three-dimensional model is processed and converted into a format suitable for Web and mobile terminals, and visual display and briefing are performed through terminal devices.

[0032] For example: after the change information is processed, the system converts the model area containing the new ceiling into a lightweight format through the Forge platform. The on-site construction foreman can load this lightweight model through the project-specific mobile phone APP, which can rotate 360 degrees, cut and view the internal structure of the ceiling, and can measure the size. At the pre-shift meeting, the workers have a intuitive understanding of the new method and installation requirements through the model, ensuring that the construction is completed at one time.

[0033] Dynamic engineering quantity accounting S5: In one possible implementation, the engineering quantity dynamic accounting and staged right confirmation step: the change content is integrated according to the preset period, the engineering quantity change is automatically recalculated and counted through the synchronization of the model and the database, and an engineering quantity comparison report is generated.

[0034] For example: at the end of each month, the system automatically aggregates all design changes in the month, synchronizes the model with the central SQL Server database through the Revit DB Link module, recalculates the quantities of all affected building materials, and generates a monthly "Design Change Quantity Report". This report serves as the authoritative basis for confirming the monthly progress payment and change fee with the owner.

[0035] As-built model delivery S6: In one possible implementation, the certification and paperless delivery of the as-built model: after the project is completed and accepted, all design change information is integrated into the final three-dimensional model, an as-built BIM model is generated, and distributed ledger technology is used for evidence storage and delivery.

[0036] For example: after the project is completed, the BIM team integrates all change information during the construction period into the final model. This as-built BIM model not only has the same geometry as the site, but also records the change history of each component in its "digital identity card". Finally, the complete data of the model is uploaded to the distributed storage network based on IOTA Tangle technology for permanent archiving. The owner can scan the components in the model at any time in the future to query their detailed information, providing great convenience for operation and maintenance.

[0037] Through the implementation of this embodiment, the project saves more than 60% of the human time in the drawing management link, and the rework rate caused by misinterpretation of drawings is reduced by about 90%, and the efficiency and quality of as-built delivery are highly recognized by the owner.

[0038] In a preferred embodiment, a device for drawing change and as-built delivery based on BIM and artificial intelligence, please refer to Figure 2 As shown, it includes: The construction module 301 is used for the parametric three-dimensional model construction step: based on the initial design drawings, the drawing information is automatically parsed in the BIM modeling software using an artificial intelligence plug-in, a three-dimensional BIM model containing complete component parameters is generated, and cross-professional collision detection and optimization are automatically performed; The change module 302 is used for the intelligent identification and version management of the change model step: when receiving the design change drawings, the engine is used to automatically compare and mark the difference area, create a change branch in the BIM software, generate a change model copy, and save a version snapshot; The marking module 303 is used for the reliable evidence storage and marking of change information step: the key information of the three-dimensional model after the change is stored using blockchain technology, and the changed components are visually marked using digital tags in the model; The conversion module 304 is configured to perform an immersive visualization disclosure step, that is, performing lightweight processing on the changed three-dimensional model and converting the three-dimensional model into a format suitable for Web and mobile terminals, and performing visualization display and disclosure through a terminal device. The comparison module 305 is configured to perform an engineering quantity dynamic accounting and staged right confirmation step, that is, integrating the change content according to a preset period, automatically recalculating and counting the engineering quantity change through synchronization of the model and the database, and generating an engineering quantity comparison report. The delivery module 306 is configured to perform a completion model authentication and paperless delivery step, that is, integrating all design change information into a final three-dimensional model after project completion acceptance, generating a completion BIM model, and using a distributed ledger technology to store evidence and deliver the completion BIM model.

[0039] The disclosure also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the foregoing method.

[0040] In a preferred implementation, referring to Figure 3 The disclosure also provides an electronic device 50, which includes: at least one processor; and a memory connected to the at least one processor in communication; wherein The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the foregoing method.

[0041] Reference is made below to Figure 3 which shows a structural schematic diagram of an electronic device 50 suitable for implementing the embodiments of the disclosure. The electronic device in the embodiments of the disclosure can include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet Personal Computer), a PMP (Portable Multimedia Player), a vehicle terminal (such as a vehicle navigation terminal), and the like, and a fixed terminal such as a digital TV, a desktop computer, and the like. Figure 3 The electronic device shown is only an example, and should not impose any limitation on the functions and use range of the embodiments of the disclosure.

[0042] As Figure 3As shown, the electronic device 50 can include a processing device (e.g., a central processor, a graphics processor, etc.) 501 that can perform various appropriate actions and processes according to programs stored in a read only memory (ROM) 502 or loaded into a random access memory (RAM) 503 from a storage device 508. Various programs and data required for the operation of the electronic device 50 are also stored in the RAM 503. The processing device 501, the ROM 502, and the RAM 503 are connected to each other through a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0043] Generally, the following devices can be connected to the I / O interface 505: input devices 506 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 507 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 508 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 509. The communication devices 509 can allow the electronic device 50 to communicate wirelessly or wired with other devices to exchange data. Although the electronic device 50 having various devices is shown in the figure, it should be understood that all of the shown devices are not required to be implemented or possessed. More or less devices can be alternatively implemented or possessed.

[0044] In particular, according to embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product comprising a computer program carrying out the program code for performing the methods shown in the flowcharts carried on a computer readable medium. In such embodiments, the computer program can be downloaded and installed from a network through the communication devices 509, or installed from the storage devices 508, or installed from the ROM 502. When the computer program is executed by the processing device 501, the above-mentioned functions defined in the methods of the embodiments of the present disclosure are performed.

[0045] It should be noted that the computer readable medium in the above disclosure can be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or apparatus. In the present disclosure, the computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries computer readable program code. Such a propagated data signal can take many forms, including but not limited to an electromagnetic signal, an optical signal or any suitable combination of the above. The computer readable signal medium can also be any computer readable medium other than the computer readable storage medium, which can send, propagate or transmit a program for use by or in conjunction with an instruction execution system, device or apparatus. The program code contained in the computer readable medium can be transmitted by any suitable medium, including but not limited to a wire, a cable, a RF (radio frequency) or the like, or any suitable combination of the above.

[0046] The computer readable medium described above can be contained in the electronic device described above; or can exist separately and not be assembled into the electronic device.

[0047] The computer readable medium described above carries one or more programs, which, when executed by the electronic device, enable the electronic device to perform the related steps of the method embodiments described above.

[0048] Alternatively, the computer readable medium described above carries one or more programs, which, when executed by the electronic device, enable the electronic device to perform the related steps of the method embodiments described above.

[0049] Computer program code for carrying out operations of the present disclosure can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0050] The computer program instructions can also be loaded onto a computer or other programmable information processing apparatus to cause a series of operations to be performed on the computer or other programmable information processing apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable information processing apparatus implement the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0051] The units described in the embodiments of the present disclosure can be implemented by software, or by hardware, or by a combination of software and hardware.

[0052] It should be understood that each part of the present disclosure can be implemented by hardware, software, firmware, or a combination thereof.

[0053] The above description is merely illustrative of the disclosure and not limiting thereof. Any modification or alternation within the technical scope of the present disclosure should be encompassed in the scope of the present disclosure. Therefore, the scope of the present disclosure should be defined by the appended claims.

Claims

1. A method for drawing changes and final delivery based on BIM and artificial intelligence, characterized in that, Includes the following steps: Parametric 3D model construction steps: Based on the initial design drawings, the AI ​​plugin in the BIM modeling software is used to automatically parse the drawing information, generate a 3D BIM model containing complete component parameters, and automatically perform cross-disciplinary clash detection and optimization. Intelligent identification and version management steps for the changed model: When design change drawings are received, the engine automatically compares and marks the differences, creates a change branch in the BIM software, generates a copy of the changed model, and saves a version snapshot; The steps for credible storage and marking of change information are as follows: Blockchain technology is used to store key information of the changed 3D model, and digital tags are used in the model to visually mark the changed components. Immersive visual briefing steps: The modified 3D model is lightweighted and converted into a format suitable for web and mobile devices, and then visualized and briefed through terminal devices; Dynamic calculation and phased confirmation of project quantities: The changes are integrated according to the preset cycle. Through the synchronization of the model and the database, the changes in project quantities are automatically recalculated and statistically analyzed, and a project quantity comparison report is generated. As-built model certification and paperless delivery steps: After project completion and acceptance, all design change information is integrated into the final 3D model to generate the as-built BIM model, and distributed ledger technology is used for certification and delivery.

2. The method according to claim 1, characterized in that, In the parametric 3D model construction step, the artificial intelligence plugin is an image recognition module based on machine learning, which is used to automatically identify information in CAD drawings and convert it into parametric components in BIM software.

3. The method according to claim 1, characterized in that, The collision detection optimization scheme is generated with the assistance of a decision module based on a large language model. This module can recommend optimization schemes and estimate the engineering impact of each scheme.

4. The method according to claim 1, characterized in that, In the trusted storage and marking steps of the changed information, the blockchain technology used is a consortium blockchain; the digital tag is a three-dimensional annotation containing the blockchain hash value.

5. The method according to claim 1, characterized in that, In the immersive visualization briefing step, the lightweighting and visualization of the model are achieved through the model's lightweighting engine.

6. The method according to claim 1, characterized in that, In the authentication and paperless delivery steps of the as-built model, the distributed ledger technology is IOTA Tangle.

7. An apparatus for a method of drawing modification and final delivery based on BIM and artificial intelligence, characterized in that, include: The module is used to parametrically construct the 3D model: based on the initial design drawings, the AI ​​plugin in the BIM modeling software automatically parses the drawing information, generates a 3D BIM model containing complete component parameters, and automatically performs cross-disciplinary clash detection and optimization. The change module is used for intelligent identification and version management of the changed model: when a design change drawing is received, the engine automatically compares and marks the difference areas, creates a change branch in the BIM software, generates a copy of the changed model, and saves a version snapshot; The tagging module is used for the trusted storage and tagging of change information: it uses blockchain technology to store key information of the changed 3D model and uses digital tags to visually tag the changed components in the model. The conversion module is used for immersive visual briefing steps: it performs lightweight processing on the modified 3D model and converts it into a format suitable for web and mobile devices, and then displays and explains it visually through terminal devices. The comparison module is used for dynamic calculation of project quantities and phased confirmation of rights: it integrates change content according to a preset cycle, automatically recalculates and statistically analyzes changes in project quantities through synchronization between the model and the database, and generates a project quantity comparison report. The delivery module is used for the authentication and paperless delivery of the as-built model: After the project is completed and accepted, all design change information is integrated into the final 3D model to generate the as-built BIM model, and distributed ledger technology is used for authentication and delivery.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method described in any one of claims 1-6.

9. A non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the method according to any one of claims 1-6.

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