BIM / CIM-based engineering design whole-process auxiliary decision-making method

Abstract

The invention discloses a BIM / CIM-based engineering design whole-process auxiliary decision-making method, relates to the technical field of engineering design, and discloses a BIM / CIM-based engineering design whole-process auxiliary decision-making method, which comprises the following steps: responding to a project red line range, obtaining geographic space data, and carrying out preprocessing, model reconstruction and lightweight processing on the geographic space data to obtain a project red line range; generating a macroscopic current situation scene; obtaining at least two candidate schemes, and performing spatial registration and fusion on the BIM models corresponding to the candidate schemes and the macroscopic current situation scene to generate a corresponding fusion decision scene; based on the fusion decision-making scene, carrying out collaborative decision-making on the candidate schemes, and determining a bid-winning scheme; and packaging the BIM model corresponding to the bid winning scheme and associated data, and transmitting the packaged BIM model and associated data to a downstream construction management system through an interface. The scheme collaborative decision-making efficiency is effectively improved, the information fault problem in the design and construction stages is solved, and the whole-process decision-making closed loop of the engineering project is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering design, and particularly relates to a BIM / CIM-based engineering design full-process auxiliary decision-making method. BACKGROUND

[0002] In the current engineering design field, BIM (Building Information Modeling) and CIM (City Information Modeling) technologies have been gradually applied to engineering design links, but their applications are mostly focused on single-stage model building or scene display. The BIM model generated in the scheme design stage and its associated design intent, review opinions, multi-scheme comparison and selection, and other decision-making data are often stored in different systems in an unstructured form, which is difficult to effectively trace and reuse in subsequent stages, affecting the scheme decision-making efficiency. In addition, after the design scheme is determined, it is usually handed over to the construction party in the form of drawings or documents, and the design scheme cannot be transmitted as a structured model that can be directly called by downstream applications, resulting in the need for re-interpretation of the design intent or even reconstruction of the model in the construction stage, forming a "design-construction" information fault, which restricts the data continuity and collaborative efficiency of the whole life cycle of the engineering project.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a BIM / CIM-based engineering design full-process auxiliary decision-making method, aiming to solve the technical problem of data fragmentation in each stage of engineering design, resulting in low efficiency of collaborative decision-making in the whole process of the engineering project.

[0005] To achieve the above purpose, the embodiments of the present application provide a BIM / CIM-based engineering design full-process auxiliary decision-making method, which comprises: In response to the project red line range, geographical space data is acquired, and the geographical space data is preprocessed, reconstructed, and processed in a lightweight manner to generate a macro status scene; At least two candidate schemes are acquired, and the BIM model corresponding to each candidate scheme is spatially registered and fused with the macro status scene to generate a corresponding fusion decision-making scene; Based on the fusion decision-making scene, collaborative decision-making is performed on the candidate schemes to determine a winning scheme; The BIM model and associated data corresponding to the winning scheme are packaged and transmitted to a downstream construction management system through an interface.

[0006] In an embodiment, the step of performing collaborative decision-making on the candidate schemes based on the fusion decision-making scenarios to determine a winning scheme comprises: calling a preset analysis engine to perform performance simulation analysis on each of the fusion decision-making scenarios, wherein the performance simulation analysis comprises sunlight simulation analysis, skyline analysis and slope aspect analysis; comparatively displaying the fusion decision-making scenarios corresponding to each of the candidate schemes and the performance simulation analysis results in a same decision-making interface; receiving selection instructions from multiple decision-making terminals, and determining the winning scheme based on the selection instructions.

[0007] In an embodiment, after the step of performing collaborative decision-making on the candidate schemes based on the fusion decision-making scenarios to determine a winning scheme, the BIM / CIM-based engineering design full-process auxiliary decision-making method further comprises: obtaining an optimized BIM model corresponding to the winning scheme based on review opinions generated in the collaborative decision-making process; comparatively displaying the optimized BIM model corresponding to the winning scheme and the BIM model before optimization in a same view, and quantitatively displaying difference elements of the optimized BIM model and the BIM model before optimization; receiving confirmation instructions from multiple decision-making terminals based on the difference elements; if the confirmation instructions are not received, returning to the step of obtaining the optimized BIM model corresponding to the winning scheme based on the review opinions generated in the collaborative decision-making process, and iteratively optimizing the winning scheme until the confirmation instructions are received to generate a target optimized scheme and a corresponding target BIM model.

[0008] In an embodiment, the step of obtaining geographic space data in response to a project red line range, and preprocessing, model reconstructing and lightweight processing the geographic space data to generate a macro status quo scene comprises: obtaining oblique photography image data, laser point cloud data and space planning data covering the project red line range and a surrounding preset buffer area through oblique photogrammetry technology, laser radar scanning and a GIS data interface; registering and fusing the oblique photography image data and the laser point cloud data, and attribute labeling planning elements within the project red line range based on the space planning data to generate an initial three-dimensional real scene model; performing geometric simplification and texture compression on the initial three-dimensional real scene model to generate the macro status quo scene.

[0009] In an embodiment, after the step of obtaining geospatial data by means of oblique photogrammetry, and preprocessing, model reconstruction and lightweight processing of the geospatial data to generate a macroscopic status quo scene in response to the project red line range, the BIM / CIM-based engineering design full-process auxiliary decision-making method further comprises: performing project status quo analysis based on the urban planning data of the current project and the macroscopic status quo scene to generate a project status quo analysis report containing land use conditions and planning constraint lists; wherein the project status quo analysis comprises determining the distribution of existing buildings and key protected vegetation within the project red line range, and the basic supporting conditions of traffic networks and public facilities around the project based on the location of the current project.

[0010] In an embodiment, the step of obtaining at least two candidate schemes, and spatially registering and fusing the BIM model corresponding to each candidate scheme with the macroscopic status quo scene to generate a corresponding fusion decision-making scene comprises: obtaining the BIM model corresponding to at least two candidate schemes; spatially registering by identifying common feature points in the BIM model and the macroscopic status quo scene based on the spatial coordinate system of the macroscopic status quo scene; fusing the registered BIM model with the macroscopic status quo scene to generate the fusion decision-making scene; visually enhancing the fusion decision-making scene by color-layered labeling of different functional areas of the BIM model, and embedding interactive design explanation labels in the fusion decision-making scene to support user click to view scheme highlights.

[0011] In an embodiment, the step of packaging the BIM model corresponding to the winning scheme and associated data, and transmitting them to a downstream construction management system through an interface comprises: obtaining project decision-making data of the current project, which includes a target optimization scheme generated based on optimization of the winning scheme, a target BIM model corresponding to the target optimization scheme, scheme change records, a project status quo analysis report, a collaborative decision-making process document, and performance simulation analysis results; integrating the project decision-making data according to a preset data structure, and generating a corresponding engineering data list; encapsulating the integrated project decision-making data and the engineering data list to obtain an engineering data package corresponding to the current project; transmitting the engineering data package to the downstream construction management system through an interface.

[0012] In an embodiment, after the step of transmitting the engineering data package to the downstream construction management system through the interface, the BIM / CIM-based engineering design full-process auxiliary decision-making method further comprises: storing the engineering data package to a project full-life-cycle database; in a project construction phase, receiving construction feedback data from the downstream construction management system and storing the construction feedback data in association with the engineering data package; in a project operation and maintenance phase, in response to an operation and maintenance query request, extracting the corresponding engineering data package and associated construction feedback data from the project full-life-cycle database to support facility management and maintenance decision-making.

[0013] The one or more technical solutions proposed in the present application have at least the following technical effects: The present application solves the problem that in traditional engineering design, scheme evaluation is divorced from the actual site due to the lack of real environment background, by constructing a macro status scene, and provides an accurate spatial reference for scheme fusion; further, the BIM model of the candidate scheme is spatially registered and fused with the macro status scene to generate a fusion decision-making scene, so that the design scheme is visualized in the real geographical environment, improving the objectivity of multi-scheme comparison and the sufficiency of decision-making basis; on this basis, collaborative decision-making is carried out based on the fusion decision-making scene, effectively avoiding evaluation bias caused by information fragmentation; by packaging the BIM model of the winning scheme and associated data and automatically transmitting them to the downstream construction management system, the problems of inconsistent versions and incomplete data caused by reliance on manual operation in the design achievement handover process are solved. The present application realizes efficient selection and decision-making of the design scheme and traceable transmission of the decision-making result to the construction phase, significantly improving the data continuity and collaborative efficiency of the engineering design full process. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A flowchart of a first embodiment of the BIM / CIM-based engineering design full-process auxiliary decision-making method involved in the embodiment scheme of the present application; Figure 2 A flowchart of a second embodiment of the BIM / CIM-based engineering design full-process auxiliary decision-making method involved in the embodiment scheme of the present application; Figure 3 A flowchart of a third embodiment of the BIM / CIM-based engineering design full-process auxiliary decision-making method involved in the embodiment scheme of the present application; Figure 4 A flowchart of a fourth embodiment of the BIM / CIM-based engineering design full-process auxiliary decision-making method involved in the embodiment scheme of the present application; Figure 5A flowchart of a fifth embodiment of a BIM / CIM-based engineering design full-process auxiliary decision method according to an embodiment of the present application is shown in FIG. 5. Figure 6 A structural diagram of a BIM / CIM-based engineering design full-process auxiliary decision device according to an embodiment of the present application is shown in FIG. 6.

[0015] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0016] It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0017] In order to better understand the technical solutions of the present application, the specific embodiments will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the current engineering design field, BIM (Building Information Modeling) and CIM (City Information Modeling) technologies have been gradually applied to engineering design links, but their applications are mostly focused on single-stage model building or scene display. The BIM model generated in the scheme design stage and its associated design intent, review comments, multi-scheme comparison and other decision data are often stored in different systems in an unstructured form, making it difficult to effectively trace and reuse in subsequent stages, affecting the efficiency of scheme decision-making. In addition, after the design scheme is determined, it is usually handed over to the construction party in the form of drawings or documents, and the design scheme cannot be transferred as a structured model that can be directly called by downstream applications, resulting in the need for re-interpretation of design intent or even reconstruction of the model in the construction stage, forming a "design-construction" information fault, which restricts the data continuity and collaborative efficiency of the whole life cycle of the engineering project.

[0019] In view of the above problems, the present application proposes a BIM / CIM-based engineering design full-process auxiliary decision method, which acquires geographic space data in response to a project red line range, and pre-processes, reconstructs and lightens the geographic space data to generate a macro status scene; acquires at least two candidate schemes, respectively performs spatial registration and fusion on the BIM model corresponding to the candidate schemes and the macro status scene to generate corresponding fusion decision scenes; performs collaborative decision-making on the candidate schemes based on the fusion decision scenes to determine a winning scheme; and packs the BIM model and associated data corresponding to the winning scheme and transmits them to a downstream construction management system through an interface.

[0020] The application provides a solution. By constructing a macroscopic status quo scene, the problem that scheme evaluation is divorced from the actual site due to the lack of real environment background in traditional engineering design is solved, and an accurate spatial reference is provided for scheme fusion. Further, the BIM model of the candidate scheme is spatially registered and fused with the macroscopic status quo scene to generate a fusion decision scene, so that the design scheme is visualized in the real geographical environment, and the objectivity of multi-scheme comparison and the sufficiency of decision basis are improved. On this basis, collaborative decision is carried out based on the fusion decision scene, so that the review deviation caused by information fragmentation is effectively avoided. By packaging and automatically transmitting the BIM model and associated data of the winning scheme to the downstream construction management system, the problems of inconsistent versions and incomplete data caused by reliance on manual operation in the design achievement handover process are solved. The application realizes efficient selection and decision of the design scheme and traceable transmission of the decision result to the construction stage, and significantly improves the data continuity and collaborative efficiency of the whole process of engineering design.

[0021] It should be noted that the execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, such as a personal computer, a server, a BIM / CIM-based collaborative management platform, or an electronic device, a cloud computing platform, etc. capable of realizing the above functions. The following takes a BIM / CIM-based engineering design whole-process auxiliary decision system as an example to illustrate the embodiment and the following embodiments.

[0022] The BIM / CIM-based engineering design whole-process auxiliary decision method of the first embodiment of the application is described in Figure 1 , which comprises steps S10-S40: Step S10: In response to the project red line range, geographical space data is acquired, and the geographical space data is preprocessed, model reconstructed and lightweighted to generate a macroscopic status quo scene.

[0023] It should be noted that the project red line range refers to the boundary line of the land available for project construction as delimited according to law in urban planning or project establishment, which is the legal basis for acquiring geographical space data. The geographical space data includes but is not limited to digital elevation model, oblique photography model, laser point cloud data, underground pipeline, geological survey data, spatial planning data and other multi-source information reflecting the actual environment.

[0024] In the embodiment, the preprocessing includes coordinate system unification, data format conversion and redundant information elimination, etc.; the model reconstruction refers to converting the original point cloud or grid data into CIM components with engineering significance through semantic segmentation and entity recognition; and the lightweighting processing adopts detail level technology and instantiation rendering to reduce the model data amount on the premise of maintaining visual accuracy.

[0025] As a feasible implementation, step S10 comprises steps S110-S130: Step S110: Obtain oblique photogrammetry image data, laser point cloud data and spatial planning data covering the project red line range and a preset buffer area around the project red line range through oblique photogrammetry technology, laser radar scanning and GIS data interface.

[0026] It should be noted that the GIS data interface refers to a standardized program interface for accessing and calling spatial planning data in a geographic information system database, which is used to obtain vector maps, planning control lines, land use properties, building height limits, traffic planning, plot ratio, building density, green space ratio and supporting facilities.

[0027] In this embodiment, the range of the preset buffer area is dynamically determined according to the project type and the complexity of the surrounding environment, and is usually set to 50-200 meters outwardly extended from the project red line to ensure the integrity of the macro scene.

[0028] Optionally, the spatial planning data can also be called through an API interface from a government data sharing platform.

[0029] Step S120: Register and fuse the oblique photogrammetry image data and the laser point cloud data, and attribute mark the planning elements within the project red line range based on the spatial planning data to generate an initial three-dimensional real scene model.

[0030] It should be noted that registration and fusion refer to the process of unifying data of different sources and different resolutions to the same spatial reference system through feature point matching and coordinate conversion.

[0031] In this embodiment, an automatic registration algorithm based on feature points is adopted. First, the significant corner points in the laser point cloud data and the SIFT feature points in the oblique photogrammetry image data are extracted for coarse registration, and then the ICP (Iterative Closest Point) algorithm is used for fine registration. Attribute marking is to connect the land use properties, planning control lines, building height limits and other constraints in the spatial planning data to the corresponding spatial positions of the three-dimensional real scene model in the form of metadata.

[0032] Optionally, for areas with poor data quality, manual intervention can also be used for auxiliary registration correction.

[0033] Step S130: Geometric simplification and texture compression are performed on the initial three-dimensional real scene model to generate the macro status scene.

[0034] In the embodiment, the geometry simplification adopts an edge collapse based mesh simplification algorithm to reduce the number of triangular facets while maintaining the model topology; and the texture compression adopts the ASTC (Adaptive Scalable Texture Compression) format to significantly reduce the memory occupation while ensuring the visual quality.

[0035] In the embodiment, by constructing a unified, accurate and lightweight macroscopic status scene (hereinafter referred to as a CIM scene) at the early stage of a project, decision deviation and low efficiency caused by inconsistent basic data in subsequent scheme comparison and selection can be avoided, thereby providing a reliable environmental benchmark for the whole process decision.

[0036] As another possible implementation, after step S10, the method further includes: performing project status analysis according to the urban planning data of the current project and the macroscopic status scene, to generate a project status analysis report containing a list of land use conditions and planning constraints; wherein the project status analysis includes: determining the basic supporting conditions of the traffic network and public facilities around the project according to the location of the current project, and the distribution of existing buildings and key protected vegetation within the project red line range.

[0037] In the embodiment, the following operations are automatically performed by a spatial analysis algorithm: first, a buffer zone is generated with the project red line as the center and a preset radius (such as 1000 meters); then, the buffer zone is superimposed and analyzed with GIS layers such as traffic network, public facilities, etc., to automatically identify and count the categories, quantities and spatial distribution of basic supporting facilities such as subway stations, bus stops, schools, hospitals, cultural and sports facilities, parks, hotels, etc. within the range (including the project red line range and the buffer zone), and to calculate their accessibility relationship with the project red line. For the project red line range, the existing building outlines (especially old buildings that need to be focused on) and vegetation coverage areas are automatically classified and extracted from the macroscopic status scene through semantic segmentation and object recognition technologies, and the locations and numbers of vegetation that need to be protected are automatically labeled according to local protection records or tree diameter rules. At the same time, combined with the requirements of multi-rule analysis, the constraint conditions of project general plan, water supply and drainage engineering, gas engineering, etc. are synchronously called and integrated into the analysis process. Finally, based on all the analysis results, a structured project status analysis report is generated, which includes a summary of land use conditions and a list of planning constraints, and can be dynamically presented in the form of label marking and profile slicing in the fusion decision scene, to help the reviewers accurately grasp the land use conditions and provide a basis for the compliance and rationality judgment of the candidate scheme design.

[0038] Step S20: Obtain at least two candidate schemes, respectively register and fuse the BIM model corresponding to the candidate scheme with the macro status scene to generate a corresponding fusion decision scene.

[0039] It should be noted that the candidate scheme refers to different engineering design schemes proposed for the project requirements, each design scheme includes corresponding functional layout, technical parameters, economic indicators and the like, and includes a complete BIM model and its attribute information.

[0040] In the present embodiment, spatial registration is achieved by extracting control points in the BIM model and the CIM scene, performing coordinate transformation, and ensuring accurate alignment of the two in spatial position. The fusion process is to superimpose the BIM model as a new layer into the macro status scene under a unified spatial reference system, and establish a logical association and conflict detection mechanism between the two components, thereby realizing the design fusion effect preview based on the candidate scheme.

[0041] Step S30: Based on the fusion decision scene, the candidate schemes are subjected to collaborative decision-making to determine the winning scheme.

[0042] In the present embodiment, the collaborative decision-making process supports multiple participants to review in a unified fusion decision-making scene. The system provides quantitative analysis tools, including but not limited to sunshine simulation, skyline analysis, slope and slope direction analysis, view analysis, earthwork calculation, and compliance review related to engineering projects, and all analysis results are presented in real time.

[0043] During the scheme review process, the system supports linking multimedia introduction materials of each candidate scheme with the fusion decision scene. By associating the project's design concept, expert comments, functional distribution and traffic flow line and the like with the spatial components in the BIM model, the focus display of the design highlights of each candidate scheme can be realized. Reviewers can synchronize the corresponding text, video and other materials by clicking on different parts of the BIM model, thereby intuitively comparing the design effect and logical basis of each candidate scheme at key nodes, providing clear and efficient comparison support for cross-level and cross-department collaborative decision-making.

[0044] Step S40: Pack the BIM model and associated data corresponding to the winning scheme, and transmit them to the downstream construction management system through the interface.

[0045] It should be noted that the associated data includes all review comments generated during the decision-making process (collaborative decision-making process documents), analysis reports (project status analysis reports), performance simulation data (performance simulation analysis results) and model version information. Among them, the model version information includes scheme change records, the winning scheme and the corresponding BIM model, the target optimization scheme optimized based on the winning scheme and the corresponding target BIM model, and the like.

[0046] In this embodiment, the packaging process will check the final determined BIM model against the delivery standard and lightweight processing, ensuring that it meets the needs of the downstream construction management system. The transmission interface adopts the industry standard data exchange format, so as to realize seamless connection with the construction management system.

[0047] In this embodiment, through the whole link through from the macro status scene construction, multi-scheme fusion review to the achievement delivery, the continuous data transmission from design to construction stage is realized, the problems of low decision efficiency and cooperation difficulty caused by the separation of data and process in each stage of engineering project design are effectively solved, and the decision closed loop of the whole life cycle of the project is realized.

[0048] Based on the above embodiments of the application, in the second embodiment of the application, the same or similar contents as the above first embodiment can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 2 , in the engineering design whole process auxiliary decision-making method based on BIM / CIM, step S20 includes steps S210-S240: Step S210: obtaining the BIM model corresponding to at least two candidate schemes.

[0049] In this embodiment, the design scheme and the corresponding BIM model file submitted by each design team are automatically obtained through a unified data interface, and the integrity and standardization of the model are automatically checked, including checking whether the building, structure, mechanical and electrical professional modules are complete, whether the parameters of the core components (such as beams, columns, floors, pipelines) are complete, and ensuring that the obtained BIM model can meet the subsequent registration and fusion requirements with the macro status scene.

[0050] Optionally, it can also be directly exported through BIM design software (such as Revit, Bentley) and synchronized to the system, and one-key submission is realized through software plug-in after design is completed, simplifying the uploading process.

[0051] Step S220: taking the spatial coordinate system of the macro status scene as the reference, and performing spatial registration by identifying common feature points in the BIM model and the macro status scene.

[0052] It should be noted that the common feature points refer to points that exist in both the BIM model and the macro status scene and have clear spatial identifiers, which are used to establish the spatial correspondence between the two, such as project red line corner points, top points of surrounding landmark buildings, road intersection center points or fixed facility points with unique numbers.

[0053] Optionally, in the engineering design process, the benchmark control points in the engineering project are predetermined as the common feature points; in the construction of the BIM model, the benchmark control points are embedded in the model with the same identification and the local coordinates thereof in the BIM model are recorded; then, the scene coordinates of the benchmark control points in the macro status scene are acquired; according to the local coordinates and the scene coordinates of the common feature points with the same identification in the BIM model and the macro status scene, the coordinate transformation parameters between the BIM model and the macro status scene are calculated, and then the spatial registration of the BIM model and the macro status scene is completed based on the coordinate transformation parameters.

[0054] Optionally, in the case where the common feature points are not predetermined in advance, the stable geographical elements around the engineering project are recognized as the registration benchmark. Specifically, the external reference points contained in the BIM model are determined, the external reference points include the intersection points of the center lines of the surrounding roads, the corner points of the adjacent buildings or the fixed municipal facility points, etc., and the three-dimensional coordinates of each external reference point in the local coordinate system of the BIM model are acquired; the macro status scene is analyzed in terms of geometric structure, the intersection points of the center lines of the surrounding roads, the corner points of the adjacent buildings and the fixed municipal facility points, etc. in the macro status scene are extracted as the external geographical element points, and the three-dimensional coordinates of each external geographical element point in the spatial coordinate system of the macro status scene are acquired; the spatial matching algorithm is adopted to associate the external reference points in the BIM model with the external geographical element points in the macro status scene, and the point pairs that are successfully matched are determined as the common feature points; according to the coordinate correspondence of the common feature points in the BIM model and the macro status scene, the coordinate transformation parameters between the local coordinate system of the BIM model and the spatial coordinate system of the macro status scene are calculated, and then the spatial registration of the BIM model and the macro status scene is realized based on the coordinate transformation parameters.

[0055] Optionally, at least three corresponding feature points can also be selected manually for spatial registration, and the alignment can be performed by manually inputting the coordinate offset or the rotation angle.

[0056] Step S230: The registered BIM model and the macro status scene are fused to generate the fusion decision scene.

[0057] It should be noted that the fusion decision scene refers to the combination of the BIM model of the candidate scheme and the macro status scene, which can simultaneously display the relationship between the design scheme and the surrounding actual environment and associate the visualization scene of the core parameters.

[0058] In the embodiment, the fusion of the BIM model and the macro status scene is realized by the scene fusion engine, and the registered BIM model is embedded in the macro status scene as an independent layer by using the layer superposition technology. At the same time, the design parameters are extracted from the BIM model through the data interface and stored in the scene attribute database according to the index classification, so that the corresponding parameters can be viewed by clicking the BIM model components.

[0059] Step S240: visual enhancement is performed on the fusion decision-making scene, different functional areas of the BIM model are marked by color layering, and an interactive design description label is embedded in the fusion decision-making scene to support user click to view the highlights of the scheme.

[0060] It should be noted that the visual enhancement refers to improving the intuitiveness and ease of use of the fusion decision-making scene by optimizing the visual presentation effect of the scene, increasing the interactive function, etc. The color layering marking refers to marking different functional areas with different colors, so that the spatial range of each area is clear at a glance. The interactive design description label refers to an information label embedded in the fusion decision-making scene that can support user click operation. The design description label is associated with the design highlight description of the corresponding area or component.

[0061] Based on the above embodiments of the present application, in the third embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 3 , in the BIM / CIM-based engineering design full-process auxiliary decision-making method, step S30 includes steps S310-S330: Step S310: calling a pre-set analysis engine, performing performance simulation analysis on each fusion decision-making scene, the performance simulation analysis including sunshine simulation analysis, skyline analysis and slope direction analysis.

[0062] In this embodiment, the pre-set analysis engine includes but is not limited to sunshine simulation analysis, skyline analysis, slope direction analysis, view analysis, earthwork calculation, and compliance review related to the engineering project.

[0063] Among them, the sunshine simulation analysis refers to predicting the sunshine condition of the building at different time points through computer simulation technology; the skyline analysis refers to evaluating the influence of the building group contour line on the urban landscape; the slope direction analysis is to analyze the terrain slope and direction to understand the suitability of land use.

[0064] In this embodiment, first, select the appropriate analysis engine according to the project requirements, and load the corresponding fusion decision-making scene data. Then, use the pre-set analysis engine to perform performance simulation analysis on the fusion decision-making scene corresponding to each candidate scheme. For example, through sunshine simulation analysis, the natural light condition inside the building at a specific time in a year can be accurately calculated; skyline analysis can help reviewers intuitively feel the influence of the design scheme on the visual effect of the city.

[0065] Step S320: comparing and displaying the fusion decision-making scene corresponding to each candidate scheme and the performance simulation analysis result in the same decision-making interface.

[0066] In this embodiment, the fusion decision-making scenarios corresponding to multiple candidate schemes are loaded into multiple view areas in the same decision-making interface, each view area is laid out in a tiled manner (such as left-right split or top-bottom split), or is switched and displayed in a tabbed manner. The fusion decision-making scenario corresponding to each view area is rendered in real time. In the peripheral interface area of each view area, the performance simulation analysis results corresponding to the fusion decision-making scenario are synchronously displayed in a chart or other form, including a sunshine duration distribution diagram, a skyline contour line, a terrain slope and slope direction diagram, etc., so as to facilitate the review personnel to check quantitative indicators while observing the scheme model.

[0067] When the review user performs a rotation, scaling or translation operation on the fusion decision-making scenario in any view area by using a mouse or a touchpad, the corresponding view angle transformation parameters (including camera position, target point, view angle range, etc.) are obtained, and the same view angle transformation parameters are immediately applied to the view areas in the side-by-side display state to drive the synchronous update of the view angle. All the side-by-side view areas share the same set of camera state variables, and the interactive operation of any view area triggers state update, and the remaining view areas monitor the state and perform corresponding rendering refresh, so as to ensure that all schemes are compared horizontally under the same observation angle.

[0068] In addition, the performance simulation analysis results can also be superimposed and displayed on the corresponding fusion decision-making scenario. For example, the sunshine simulation results are overlaid on the building surface as a material map in the form of a color heat map, different colors correspond to different sunshine duration intervals; the skyline analysis results are superimposed on the top fixed position of the scene as a semi-transparent two-dimensional vector layer and do not move with the view angle; the slope and slope direction analysis results are visualized by generating a symbol array with direction arrows on the terrain surface. The superimposed content can be selected to be turned on or off by the review personnel, so as to flexibly adapt to the viewing needs in different review stages.

[0069] Step S330: receiving selection instructions from multiple decision-making terminals, and determining the winning scheme based on the selection instructions.

[0070] In this embodiment, when the review personnel completes the review of each candidate scheme, the selection instruction can be sent through the respective decision-making terminal. The system collects the selection instructions from multiple decision-making terminals, and determines the final winning scheme according to the pre-set rules (such as majority voting).

[0071] The embodiment performs sunshine simulation analysis, skyline analysis and slope aspect analysis on each fusion decision-making scene by calling the preset analysis engine, generates quantitative evaluation data, and presents the fusion decision-making scene corresponding to each candidate scheme and its analysis result in the same decision-making interface, so that the review personnel can intuitively compare the highlights and differences of different schemes under the same observation conditions. On this basis, by receiving selection instructions from multiple decision terminals, the winning scheme is determined by centralized collection and according to the preset rules, realizing the collaborative decision-making process of visual analysis and improving the decision-making efficiency of scheme comparison.

[0072] Based on the above embodiments of the application, in the fourth embodiment of the application, the same or similar contents as the above embodiments can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 4 , after step S30, the BIM / CIM-based engineering design full-process auxiliary decision-making method further includes steps S31-S34: Step S31: Based on the review opinions generated in the collaborative decision-making process, an optimized BIM model corresponding to the winning scheme is obtained.

[0073] It should be noted that the collaborative decision-making process refers to the interactive process of scheme discussion, review and modification opinion formation by multiple decision makers through the system platform. The review opinion is a structured digital information, including text annotation, voice annotation, drawing marking and attribute modification requirement, etc.

[0074] In this embodiment, after the winning scheme is determined, the engineering project will usually have multiple rounds of optimization for the winning scheme. The review personnel can associate the review opinions directly to the specific components in the BIM model through the marking tool provided by the system platform, so that the design team can accurately locate the model parts that need to be optimized; or directly submit modification suggestions in the opinion list for the design team to refer to as a whole.

[0075] The design team can view the review opinions of this round in the system, and modify the original BIM model according to the opinion content to generate an optimized BIM model, and upload it to the system platform. After receiving the new version of the scheme design model, the system will automatically record the scheme model version iteration information, save the corresponding model file, upload time, operator, version number and the list of responded review opinions, etc., form a complete version change log, and ensure the traceability of each optimization operation.

[0076] Step S32: The optimized BIM model corresponding to the winning scheme is compared and displayed with the BIM model before optimization under the same view, and the difference elements of the optimized BIM model and the BIM model before optimization are quantitatively displayed.

[0077] In the embodiment, the system is built-in a model comparison engine which can compare the two versions of BIM models before and after optimization based on the geometric topology and attribute information of the parsed BIM models, for example, identify the added, deleted or modified building components (such as wall movement, door and window addition or deletion, floor opening, etc.), analyze the building area increase or decrease caused by the change of space boundary, and whether the functional area is adjusted or not. Then the comparison results are presented in the same view. Specifically, a split screen display mode can be used, the left side shows the model before optimization, the right side shows the model after optimization, and then the difference elements are highlighted. The user clicks on any difference component, a detailed information box is popped up to display the name, ID, original attribute data, new attribute data and corresponding review comments.

[0078] It can be understood that when the winning scheme is optimized for multiple rounds, the BIM model after each round of optimization can be merged into the macro status scene, so that the review personnel can more intuitively evaluate the actual effect of scheme optimization under the reference of the real environment, thereby improving the intuitiveness and accuracy of scheme comparison, and also ensuring that the optimization decision is always based on the actual environmental conditions of the project, significantly improving the accuracy of scheme optimization and the scientificity of decision-making.

[0079] Optionally, key quantitative indicators can also be extracted and calculated from the original BIM model and the optimized BIM model to assist in judging the optimization effect. For example, total building area, building height and number of floors, space utilization rate, volume rate, window-wall ratio, structural concrete consumption, sunshine compliance rate, cost difference, etc. These key quantitative indicators can be dynamically displayed in the interface sidebar in the form of comparison table or column chart, and each difference value can reflect the change amplitude of the corresponding indicator after optimization.

[0080] Step S33: Based on the difference elements, receiving confirmation instructions from multiple decision terminals.

[0081] In the embodiment, when the models before and after optimization and their difference elements are displayed, the user can continue to add supplementary comments in the optimized BIM model and further propose review suggestions; or directly click the confirmation button to submit the approval opinion. When the preset review passing conditions are met (such as all review personnel confirm to pass), the final target optimization scheme and the corresponding target BIM model are determined.

[0082] Step S34: If the confirmation instruction is not received, return to execute the step of obtaining the optimized BIM model corresponding to the winning scheme based on the review opinions generated in the collaborative decision-making process, iteratively optimize the winning scheme until the confirmation instruction is received to generate the target optimization scheme and the corresponding target BIM model.

[0083] After the optimized scheme display and review opinion collection are completed, it is judged whether all the confirmation instructions submitted by the decision makers have been received. If not all the confirmation instructions have been received or any review opinion feedback has been received, the next round of optimization based on the review opinion is continued. At this time, the latest round of review opinions (including newly added comments or modification requirements) are re-collected and pushed to the design team, prompting them to make another round of adjustments to the BIM model optimized last time according to the latest feedback. The design team modifies according to the review opinions of the current round, and re-uploads the optimized BIM model, and then the model comparison, difference display and confirmation collection process are performed again to form a closed loop iteration. Each round of optimization generates an independent version record to ensure that the entire decision-making process is traceable until all the decision makers submit the confirmation instructions, the BIM model optimized through the last review is determined as the target BIM model, and the corresponding target optimization scheme is determined, and the closed loop of the entire decision-making process is completed.

[0084] After the winning scheme is determined, the corresponding optimized BIM model is obtained based on the review opinions generated in the collaborative decision-making process, and the optimized BIM model and the BIM model before optimization are compared and displayed in the same view, so that the review personnel can intuitively view the optimized scheme effect; in addition, the difference elements of the two versions of BIM models are quantitatively displayed to provide measurable judgment basis for the optimization effect; the confirmation instructions from multiple decision terminals are combined for collaborative confirmation to ensure that the optimization result reaches a consensus; if no confirmation instruction is received, the optimized model is re-obtained to realize continuous iterative optimization of the winning scheme until a consensus is reached, realizing a closed loop mechanism from feedback to optimization to confirmation, effectively improving the efficiency and consistency in the scheme decision-making process.

[0085] Based on the above embodiments of the present application, in the fifth embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above introduction, and will not be repeated hereinafter. On this basis, please refer to Figure 5 , the BIM / CIM-based engineering design whole-process auxiliary decision-making method, step S40 includes steps S410-S440: Step S410: obtaining project decision data of the current project, the project decision data including a target optimization scheme generated based on the winning scheme optimization, a target BIM model corresponding to the target optimization scheme, a scheme change record, a project status analysis report, a collaborative decision-making process document, and a performance simulation analysis result.

[0086] Step S420: integrating the project decision data according to a preset data structure, and generating a corresponding engineering data list.

[0087] Step S430: packaging the integrated project decision data and the engineering data list to obtain an engineering data package corresponding to the current project.

[0088] Step S440: transmitting the engineering data package to the downstream construction management system through an interface.

[0089] In this embodiment, when the winning scheme completes multiple rounds of optimization and passes all confirmation processes, the system automatically starts the decision-making result archiving process. First, the system will comprehensively collect all project decision-making data formed during the design phase, including the final determined target optimization scheme file and its corresponding target BIM model, scheme change records recording the content of each round of optimization, project pre-stage status analysis reports, review opinions generated during the collaborative decision-making process, and analysis reports of various performance simulation analyses.

[0090] Then, according to the preset classification standard, these project decision-making data are standardized and sorted, divided into model data, analysis data, process documents, etc., and a detailed engineering data list is automatically generated. The list uses a structured table form to record the name, format, version, size, etc. of each data file, which is used to explain the composition of project decision-making data, and is convenient for subsequent checking and management.

[0091] Next, the sorted project decision-making data and engineering data list are packaged into an independent engineering data package, and named by the project name or number. In this process, the integrity of the engineering data package can be ensured through digital signature.

[0092] Finally, through a standardized data interface, the engineering data package is sent to the receiving party through the connection with the downstream construction management system, realizing the efficient handover of design results.

[0093] This embodiment realizes the efficient handover of design results to the construction phase by establishing a standardized data archiving and delivery process. This scheme ensures the complete collection and standardized sorting of project decision-making data, effectively integrates various data such as design models, analysis reports, and decision-making documents through unified classification standards and structured processing, forming a complete engineering data package. This standardized data processing method not only solves the problems of version confusion and information loss in traditional data delivery, but more importantly, it opens up the data channel between the design phase and the construction phase, effectively eliminating the problems of low decision-making efficiency and coordination difficulties caused by data fragmentation. By ensuring the complete and accurate delivery of design results, the overall efficiency of engineering construction is significantly improved.

[0094] As a feasible implementation manner, step S440 includes steps S4410-S4430: Step S4410: storing the engineering data package to the project full life cycle database.

[0095] Step S4410: In the project construction phase, receiving construction feedback data from the downstream construction management system, and storing the construction feedback data in association with the engineering data package.

[0096] Step S4410: In the project operation phase, in response to an operation query request, extracting the corresponding engineering data package and associated construction feedback data from the project full life cycle database to support facility management and maintenance decision-making.

[0097] The embodiment realizes long-term archiving and unified management of design results by storing engineering data packages into the project full life cycle database. In the project construction phase, by receiving and storing construction feedback data in association, design information is linked with the actual construction process. After entering the project operation phase, the original engineering design data package and associated construction records can be retrieved from the database according to operation management needs, to support equipment maintenance, facility inspection or expansion decisions. The embodiment breaks the data fragmentation situation in the design, construction and operation stages in traditional engineering construction, realizes cross-stage connection and continuous reuse of engineering data, and improves the data continuity and management collaboration ability of the project full life cycle.

[0098] The embodiment of the application provides a BIM / CIM-based engineering design full-process auxiliary decision-making device. The BIM / CIM-based engineering design full-process auxiliary decision-making device comprises at least one processor and a memory in communication connection with the at least one processor. The memory stores instructions executable by the at least one processor. The instructions are executed by the at least one processor, so that the at least one processor can execute the BIM / CIM-based engineering design full-process auxiliary decision-making method in the above embodiment.

[0099] Reference will be made to the following description of the embodiments of the application Figure 6 which shows a structural schematic diagram of the BIM / CIM-based engineering design full-process auxiliary decision-making device suitable for being used to implement the embodiment of the application. The BIM / CIM-based engineering design full-process auxiliary decision-making device in the embodiment of the application can comprise various hardware and software components for implementing the BIM / CIM-based engineering design full-process auxiliary decision-making method. Figure 6 The BIM / CIM-based engineering design full-process auxiliary decision-making device shown is only an example, and should not bring any limitation to the functions and use range of the embodiment of the application.

[0100] As Figure 6As shown, the BIM / CIM-based engineering design whole-process decision support device can include a processing apparatus 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 1002 or loaded from a storage apparatus 1003 into a random access memory (RAM) 1004. Various programs and data required for operation of the BIM / CIM-based engineering design whole-process decision support device are also stored in the random access memory 1004. The processing apparatus 1001, the read-only memory 1002, and the random access memory 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input apparatus 1007 including, for example, a touch screen, a touch pad, a keyboard, etc.; an output apparatus 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; the storage apparatus 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication apparatus 1009. The communication apparatus 1009 can allow the BIM / CIM-based engineering design whole-process decision support device to communicate wirelessly or by wire with other devices to exchange data. Although the BIM / CIM-based engineering design whole-process decision support device with various systems is shown in the figure, it should be understood that all the shown systems are not required to be implemented or possessed. More or fewer systems can be alternatively implemented or possessed.

[0101] 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 carried on a computer readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network through the communication apparatus, or installed from the storage apparatus 1003, or installed from the read-only memory 1002. When the computer program is executed by the processing apparatus 1001, the above-mentioned functions defined in the methods of the embodiments of the present disclosure are performed.

[0102] The BIM / CIM-based engineering design whole-process auxiliary decision device provided in the application adopts the BIM / CIM-based engineering design whole-process auxiliary decision method in the above embodiment, and can solve the technical problem of low efficiency of whole-process collaborative decision of engineering projects caused by data fragmentation in each stage of engineering design. Compared with the prior art, the BIM / CIM-based engineering design whole-process auxiliary decision device provided in the application has the same beneficial effects as the BIM / CIM-based engineering design whole-process auxiliary decision method provided in the above embodiment, and other technical features in the BIM / CIM-based engineering design whole-process auxiliary decision device are the same as the features disclosed in the above embodiment method, and will not be repeated here.

[0103] It should be understood that parts of the present application can be realized by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The above is merely specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0105] The embodiment of the present application provides a computer readable storage medium having computer readable program instructions (i.e. computer programs) stored thereon, and the computer readable program instructions are used to execute the BIM / CIM-based engineering design whole-process auxiliary decision method in the above embodiment.

[0106] The computer readable storage medium provided in the application may be, for example, a U disk, but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination of the above. More specific examples of the computer readable storage medium may include, but are not limited to, an electrical connection with one or more conductive wires, a portable computer disk, 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 embodiment, the computer readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system, or device. The program code contained on the computer readable storage medium can be transmitted by any suitable medium, including but not limited to an electrical wire, an optical cable, a radio frequency (RF), and the like, or any suitable combination of the above.

[0107] The above computer readable storage medium may be contained in the BIM / CIM-based engineering design whole-process auxiliary decision-making device, or may exist independently without being assembled into the BIM / CIM-based engineering design whole-process auxiliary decision-making device.

[0108] The above computer readable storage medium carries one or more programs, when the one or more programs are executed by the BIM / CIM-based engineering design whole-process auxiliary decision-making device, the BIM / CIM-based engineering design whole-process auxiliary decision-making device: in response to a project red line range, acquires geographic space data, and pre-processes, model reconstructs, and lightweight processes the geographic space data to generate a macro status scene; acquires at least two candidate schemes, respectively performs spatial registration and fusion on the BIM model corresponding to the candidate scheme and the macro status scene to generate a corresponding fusion decision-making scene; based on the fusion decision-making scene, performs collaborative decision-making on the candidate schemes to determine a winning scheme; packs the BIM model and associated data corresponding to the winning scheme, and transmits the BIM model and associated data to a downstream construction management system through an interface.

[0109] Computer program code for carrying out operations of the present application 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).

[0110] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0111] The modules involved in the embodiments of the present application can be implemented in software or hardware. In some cases, the names of the modules do not constitute a limitation on the modules themselves.

[0112] The readable storage medium provided in the application is a computer readable storage medium, and the computer readable storage medium stores computer readable program instructions (i.e., a computer program) for executing the above-mentioned BIM / CIM-based engineering design whole-process auxiliary decision method, and can solve the technical problem of data fragmentation in each stage of engineering design, which leads to low efficiency of collaborative decision-making in the whole process of an engineering project. Compared with the prior art, the beneficial effects of the computer readable storage medium provided in the application are the same as those of the BIM / CIM-based engineering design whole-process auxiliary decision method provided in the above-mentioned embodiments, and are not described here.

[0113] The embodiment of the application provides a computer program product, including a computer program, and the computer program is executed by a processor to realize the steps of the above-mentioned BIM / CIM-based engineering design whole-process auxiliary decision method.

[0114] The computer program product provided in the application can solve the technical problem of data fragmentation in each stage of engineering design, which leads to low efficiency of collaborative decision-making in the whole process of an engineering project. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiment of the application are the same as those of the BIM / CIM-based engineering design whole-process auxiliary decision method provided in the above-mentioned embodiments, and are not described here.

[0115] The above is only the preferred embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the application, or direct or indirect application in other related technical fields, are also included in the patent processing scope of the application.

[0116] It should be noted that in this paper, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive containing, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or system. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of another identical element in the process, method, article or system including the element.

[0117] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of software and necessary general hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better embodiment.

[0118] The above merely preferred embodiments of the present application and are not intended to limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A BIM / CIM-based engineering design whole-process auxiliary decision-making method, characterized in that, The BIM / CIM-based engineering design whole-process auxiliary decision-making method comprises the following steps: In response to a project red line range, geographic space data is acquired, and the geographic space data is preprocessed, model reconstructed and lightweight processed to generate a macroscopic status scene; At least two candidate schemes are acquired, and a BIM model corresponding to each candidate scheme is spatially registered and fused with the macroscopic status scene to generate a corresponding fusion decision-making scene; Based on the fusion decision-making scene, collaborative decision-making is performed on the candidate schemes to determine a winning scheme; The BIM model corresponding to the winning scheme and associated data are packaged and transmitted to a downstream construction management system through an interface. 2.The BIM / CIM-based engineering design whole-process aided decision-making method according to claim 1, characterized in that, The step of determining the winning scheme based on the fusion decision-making scene and the candidate schemes comprises the following steps: An analysis engine is called to perform performance simulation analysis on each fusion decision-making scene, and the performance simulation analysis comprises sunlight simulation analysis, skyline analysis and slope direction analysis; The fusion decision-making scene corresponding to each candidate scheme and the performance simulation analysis result are compared and displayed in the same decision-making interface; Selection instructions from multiple decision-making terminals are received, and the winning scheme is determined based on the selection instructions. 3.The BIM / CIM-based engineering design whole-process aided decision-making method according to claim 1, characterized in that, After the step of determining the winning scheme based on the fusion decision-making scene and the candidate schemes, the BIM / CIM-based engineering design whole-process auxiliary decision-making method further comprises the following steps: Based on review opinions generated in the collaborative decision-making process, an optimized BIM model corresponding to the winning scheme is acquired; The optimized BIM model corresponding to the winning scheme and the BIM model before optimization are compared and displayed in the same view, and difference elements of the optimized BIM model and the BIM model before optimization are quantitatively displayed; Based on the difference elements, confirmation instructions from multiple decision-making terminals are received; If the confirmation instructions are not received, the step of acquiring the optimized BIM model corresponding to the winning scheme based on the review opinions generated in the collaborative decision-making process is returned to iteratively optimize the winning scheme until the confirmation instructions are received to generate a target optimization scheme and a corresponding target BIM model.

4. The BIM / CIM-based engineering design whole-process auxiliary decision-making method according to claim 1, characterized in that, The step of acquiring geographic space data in response to a project red line range and preprocessing, model reconstructing and lightweight processing the geographic space data to generate a macroscopic status scene comprises the following steps: Through oblique photogrammetry technology, laser radar scanning and a GIS data interface, oblique photogrammetry image data, laser point cloud data and space planning data covering the project red line range and a surrounding preset buffer area are acquired; The oblique photogrammetry image data and the laser point cloud data are registered and fused, and planning elements within the project red line range are attribute-labeled based on the space planning data to generate an initial three-dimensional real scene model; The initial three-dimensional real scene model is geometrically simplified and texture-compressed to generate the macroscopic status scene.

5. The BIM / CIM-based engineering design whole-process auxiliary decision-making method according to claim 1, characterized in that, After the step of obtaining geospatial data in response to the project red line range, and preprocessing, model reconstruction and lightweight processing of the geospatial data to generate a macro status quo scene, the BIM / CIM-based engineering design full-process auxiliary decision-making method further comprises: Performing project status quo analysis according to the urban planning data of the current project and the macro status quo scene to generate a project status quo analysis report containing land use conditions and planning constraint lists; Wherein, the project status quo analysis comprises: determining the basic supporting conditions of traffic network and public facilities around the project, and the distribution of existing buildings and key protected vegetation within the project red line range according to the location of the current project.

6. The BIM / CIM-based engineering design whole-process auxiliary decision-making method according to claim 1, characterized in that, The step of obtaining at least two candidate schemes, respectively performing spatial registration and fusion of the BIM model corresponding to the candidate scheme and the macro status quo scene to generate a corresponding fusion decision-making scene comprises: Obtaining the BIM model corresponding to at least two candidate schemes; Taking the spatial coordinate system of the macro status quo scene as the reference, performing spatial registration by identifying common feature points in the BIM model and the macro status quo scene; Fusing the registered BIM model and the macro status quo scene to generate the fusion decision-making scene; Visualizing and enhancing the fusion decision-making scene, labeling different functional areas of the BIM model by color layering, and embedding interactive design description labels in the fusion decision-making scene to support user click to view scheme highlights.

7. The BIM / CIM-based engineering design whole-process auxiliary decision-making method according to claim 1, characterized in that, The step of packaging the BIM model corresponding to the winning scheme and associated data, and transmitting it to the downstream construction management system through the interface comprises: Obtaining project decision-making data of the current project, which includes target optimization schemes generated after optimization based on the winning scheme, target BIM models corresponding to the target optimization schemes, scheme change records, project status quo analysis reports, collaborative decision-making process documents, and performance simulation analysis results; Integrating the project decision-making data according to the preset data structure, and generating corresponding engineering data lists; Packaging the integrated project decision-making data and the engineering data lists to obtain the engineering data package corresponding to the current project; Transmitting the engineering data package to the downstream construction management system through the interface.

8. The BIM / CIM-based engineering design whole-process auxiliary decision-making method according to claim 7, characterized in that, After the step of transmitting the engineering data package to the downstream construction management system through the interface, the BIM / CIM-based engineering design full-process auxiliary decision-making method further comprises: Storing the engineering data package to the project full-life cycle database; In the project construction phase, receiving construction feedback data from the downstream construction management system, and storing the construction feedback data and the engineering data package in association; In the project operation phase, in response to an operation query request, extracting the corresponding engineering data package and associated construction feedback data from the project full-life cycle database to support facility management and maintenance decision-making.

Images