An online multi-dimensional construction application and collaboration system for construction projects based on CIM technology

Abstract

The present invention discloses an online multi-dimensional construction application collaborative system for construction projects based on CIM technology, including a client, which is connected to a server in communication, and the client includes: a data acquisition module, which is used to acquire CIM data and a planning and construction application BIM model of a specified construction application plan from a server; an auxiliary self-examination module, which is used to visualize the CIM data and load the planning and construction application BIM model to a selected location; and to analyze the set planning indicators and determine whether the indicator requirements are met. The present invention enables the construction application unit to obtain a construction application plan efficiently and scientifically based on the BIM model and three-dimensional scene data and on the basis of planning indicator analysis.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering construction, and in particular relates to an online multi-dimensional construction application and collaboration system for construction projects based on CIM technology. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Whether it is the construction application process or the construction drawing document review process, the application or review is based on the two-dimensional drawings provided by the construction unit. This results in the relevant departments having to review the two-dimensional drawings during the review process, which makes the review time longer.

[0004] In order to solve the above problems, the prior art discloses building models based on BIM, and processing drawings according to the constructed BIM models. However, in the process of model construction, technical review meetings are held by technical personnel in multiple professional fields, and technical personnel in various fields make decisions and formulate plans for construction approval. However, since various technical indicators need to be considered comprehensively in the scheme design process, each technical indicator needs to be reviewed by experts, which is undoubtedly a heavy workload, time-consuming, and not conducive to the real-time acquisition of construction plans. In addition, through traditional two-dimensional structural drawings or renderings, the architectural style and main color of the planned object expressed by them are restricted by visualization, intuitiveness, and adjustability, and the efficiency and success rate of the planning scheme completion are unsatisfactory. Summary of the invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides an online multi-dimensional construction project application and collaboration system based on CIM technology, which can not only assist in application and approval, but also provide a self-examination method, so that the application unit can obtain an application plan efficiently and scientifically based on the BIM model and three-dimensional scene data and on the basis of planning indicator analysis.

[0006] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0007] A client, connected to a server for communication, comprises:

[0008] The data acquisition module is used to obtain the CIM data of the specified construction application plan and the planning and construction application BIM model from the server;

[0009] The auxiliary self-review module is used to visualize the CIM data and load the planning and construction reporting BIM model to a selected location; analyze the set planning indicators and determine whether the indicator requirements are met.

[0010] Further, visualizing the CIM data includes:

[0011] Performing initial visualization of the CIM data;

[0012] Get the coordinate position in the scene corresponding to the mouse position, generate a grid of a set size with the position as the center, and display the scene of the nine-square grid composed of the grid and its neighboring grids to view the current plot and surrounding 3D model information.

[0013] Further, loading the planning and construction application BIM model to the selected location includes:

[0014] Separate the topological structure of the BIM model;

[0015] Extract the corresponding data of the basic framework structure from the BIM model and display it at the specified location.

[0016] Furthermore, the auxiliary self-review module also includes: a scheme comparison unit, which is used to compare multiple schemes that meet the indicator requirements, display the scene and BIM model, and the analysis results of each set indicator.

[0017] Furthermore, it also includes a construction application plan uploading module for uploading the planned construction application plan to the server.

[0018] One or more embodiments provide a server, which is connected to the client for communication, including:

[0019] A construction application plan management module is used to manage the uploaded construction application plan, which includes a planning construction application BIM model and a planning location;

[0020] The construction application self-review module is used to respond to client requests, retrieve corresponding CIM data for a specified construction application according to its planning location, and feed back the CIM data and the planning and construction application BIM model to the client.

[0021] Furthermore, the server is connected to a database server and retrieves CIM data from the database server.

[0022] Furthermore, the corresponding CIM data is retrieved according to its planned location, including:

[0023] Pre-configure catalog information and account information; the catalog information includes a data resource directory for storing basic information and data sources of data resources; the account information includes account information of the multiple databases;

[0024] According to the catalog information, the database source of the relevant CIM data is determined; according to the database source, the corresponding account information is obtained and an access link is created; according to the planned location, the corresponding CIM data is obtained.

[0025] One or more embodiments provide an online multi-dimensional construction application and collaboration system for construction projects based on CIM technology, including: the client and the server.

[0026] Furthermore, the system also includes one or more review clients connected to the server, for obtaining the construction application plan from the server, and reviewing the construction application plan based on preset indicators.

[0027] One or more of the above technical solutions have the following beneficial effects:

[0028] By virtually restoring the actual existing environment and spatial structure of the area to be planned, and then inserting the planning and construction reporting BIM model on this basis, various spatial, physical and environmental simulation analyses are performed on the planning area to obtain planning indicators. Combined with the indicator requirements, it is possible to quickly determine whether the current plan is compliant. Compared with traditional two-dimensional planning methods, this method is more intuitive and has higher efficiency and accuracy.

[0029] By adjusting the position of the BIM model in the construction application, different planning schemes can be obtained, thereby enabling comparison between multiple schemes. By integrating and analyzing with the surrounding three-dimensional environment, the advantages and disadvantages of different schemes can be compared more intuitively, conveniently and accurately, facilitating the optimization and decision-making of schemes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] Figure 1 It is a functional framework diagram of the online multi-dimensional construction application and collaboration system for construction projects based on CIM technology in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0035] Embodiment 1

[0036] This embodiment discloses an online multi-dimensional construction application and collaboration system for construction projects based on CIM technology. The system includes a database server, a project approval server, a construction application client, and a review client.

[0037] The data server includes multiple heterogeneous databases for storing data from different sources, such as a CIM basic database, a CIM business database, a CIM service database, and a CIM support database.

[0038] A project approval server is connected to the data server in communication, and the project approval server is configured to include:

[0039] The construction application plan management module is used to receive and store the construction application plans of the projects to be reviewed in the planning approval stage uploaded by the client. The construction application plans include the planning application BIM model, planning location information and green ecological technical indicators. The green ecological technical indicators include floor area ratio, greening rate, floor height and other indicators.

[0040] After receiving the construction proposal self-review request sent by the construction proposal client, the construction proposal self-review module obtains relevant CIM data from the database server according to the location information in the construction proposal, including DEM data, large-scale digital line drawings, aerial image data and other relevant data, and sends it to the construction proposal client.

[0041] Since CIM data involves different data types and data sources, there are object-oriented databases, relational databases, and other types of databases. When retrieving data, it is necessary to access multiple databases, create indexes between multiple databases, and maintain indexes, which is time-consuming and laborious. This embodiment provides a method for dynamically switching access to databases without creating indexes. Pre-configure account information and catalog information of multiple databases. The catalog information includes a data resource directory for storing basic information and data sources of data resources. Specifically, the resource directory is an orderly arrangement of the core metadata of information resources according to the information resource classification system or other methods, and is used to manage related remote sensing images, GIS data, CAD drawing information resources, etc. The core metadata of information resources is a basic set of data describing various attributes and feature data of information resources, including content information, management information, acquisition method information, etc. of information resources. The management information includes data, data source name, database name, and database link corresponding to the information resource. According to the data type, the data is bound to the corresponding database in the background in advance, and access can be achieved according to the database name, data source name, database link, user name, password, and other information.

[0042] After receiving the construction proposal self-review request sent by the construction proposal client, the construction proposal self-review module determines the database source of the relevant CIM data based on the cataloging information; obtains the corresponding account information based on the database source and creates an access link; obtains the corresponding CIM data based on the planned location and sends it to the construction proposal client.

[0043] The construction application client is connected to the project approval server for communication, and the construction application client is configured to include:

[0044] The construction plan uploading module is used to upload the construction plan of the project to be reviewed in the planning approval stage to the project approval server.

[0045] The data acquisition module is used to obtain the CIM data of the specified construction application plan and the planning and construction application BIM model from the project approval server.

[0046] The auxiliary self-review module includes a scene browsing unit, a solution self-review unit, a measurement unit and a solution comparison unit.

[0047] The scene browsing unit is used to perform initial visualization of the CIM data, and the initial visualization roughly displays the scene as a whole; obtain the position of the mouse on the screen, convert the position of the mouse on the screen into the coordinate position in the scene, and based on the position of the mouse in the scene, generate a grid of a set size with the position as the center, and only display the scene of the nine-square grid composed of the square and its neighboring squares, which is used to view the current plot and the surrounding three-dimensional model information. In this way, the system can authorize viewing according to the radiation range of the plot, without the need for high-precision visualization of the entire scene. Only the three-dimensional data and indicator information in the nine-square grid are displayed on demand each time, and the loading speed is fast. The user refers to the surrounding scene and selects the location where the building is to be placed. After selection, self-examination can be performed.

[0048] The scheme self-examination unit is used to obtain the user's selection of the location, obtain the planning and construction application BIM model, load the BIM model to the location, calculate the set indicators, and determine whether the indicator requirements are met. If there are indicators that do not meet the requirements, the indicators are prompted; the schemes that meet the indicator requirements are saved. The indicators include volume ratio, building density, building height, floor height, daylighting rate, etc. The calculation of the set indicators can be assisted by existing visual area analysis, sunlight shadow analysis, skyline analysis and other methods.

[0049] Since the planning and construction application stage mainly examines the structure and appearance of the building itself, it is not necessary to visualize all the information in the BIM model. In order to improve the efficiency of model loading without affecting the integrity of the model, this embodiment uses a lightweight BIM engine to separate the topological structure of the BIM model and extract some data from the BIM model for display. Specifically, a digital-analog separation mechanism is used to store geometric information and non-geometric information separately. When loading, the topological structure of the BIM model is separated, the corresponding data of the basic framework structure is extracted from the BIM model, and the necessity of the component topological relationship and attributes is judged to ensure the integrity of the model loading. The topological structure of the separated BIM model includes the following processes: (1) the collision relationship between the two components is initially judged through the directional bounding box; (2) according to the initial judgment result, all the line segments on the edge geometry of one of the components are traversed, and two segment ray detection is performed on all the faces of the other component. If they do not intersect, they are classified as non-intersecting; if they intersect, but the distance is less than the line segment length, they are classified as non-intersecting; if they intersect and the distance is less than the line segment length, they are classified as intersecting; (3) the two components respectively perform the intersection judgment of the boundary geometry points on the face of the other component. If no data appears in the intersection class, the two components are judged. do not intersect. On the contrary, if any line segment intersects with any face, it is determined that the two objects collide. (4) Determine whether the two components are in a containment relationship. Take all geometric point positions of the first component as the starting point, emit rays in any direction, and monitor collision with the second component. If the number of single collisions in all collision information is an odd number, it is determined that the second component contains the first component. If the number of single collisions in all collision information is an even number, it is determined that the second component does not contain the first component. If all collision information contains both even and odd numbers, it is determined that the second component partially contains the first component, and the second component and the first component collide.

[0050] The scheme comparison unit is used to compare the saved schemes, specifically, to display the scene and BIM model, as well as the calculation results of various set indicators.

[0051] The measuring unit is used to measure spatial information such as length or area, that is, it supports users to perform map spatial measurements in a three-dimensional scene, such as length and area measurements, so that users can obtain spatial information in a map scene at any time.

[0052] Multiple review clients are used for review by the supervisor, the supervision party, and the project construction party. Specifically, the construction application plan is obtained from the project approval server, and the construction application plan is reviewed based on preset indicators. The multiple review clients realize online joint review. The report plan is pushed to the third-party technical review unit or the relevant person in charge of the construction management department according to the process, and the three-dimensional auxiliary analysis tool is used to realize online technical review and form a review opinion.

[0053] Embodiment 2

[0054] Based on the collaborative construction application system provided in the embodiment, this embodiment provides a construction application client, which is connected to the project approval server in communication, including:

[0055] The construction application plan upload module is used to upload the planned construction application plan to the project approval server.

[0056] The data acquisition module is used to obtain the CIM data of the specified construction application plan and the planning and construction application BIM model from the server;

[0057] The auxiliary self-examination module is configured to include:

[0058] A scene browsing unit, used for visualizing the CIM data;

[0059] The scheme self-examination unit loads the planning and construction application BIM model to the selected location; analyzes the set planning indicators and determines whether the indicator requirements are met;

[0060] The scheme comparison unit is used to compare multiple schemes that meet the index requirements, display the scene and BIM model, and the analysis results of each set index.

[0061] Wherein, visualizing the CIM data includes:

[0062] Performing initial visualization of the CIM data;

[0063] Get the coordinate position in the scene corresponding to the mouse position, generate a grid of a set size with the position as the center, and display the scene of the nine-square grid composed of the grid and its neighboring grids to view the current plot and surrounding 3D model information.

[0064] Loading the planning and construction application BIM model to the selected location includes:

[0065] Separate the topological structure of the BIM model;

[0066] Extract the corresponding data of the basic framework structure from the BIM model and display it at the specified location.

[0067] Embodiment 3

[0068] Based on the collaborative construction application system provided in the embodiment, this embodiment provides a project approval server, which is connected to the construction application client in the second embodiment, including:

[0069] A construction application plan management module is used to manage the uploaded construction application plan, which includes a planning construction application BIM model and a planning location;

[0070] The construction application self-review module is used to respond to client requests, retrieve corresponding CIM data for a specified construction application according to its planning location, and feed back the CIM data and the planning and construction application BIM model to the client.

[0071] The server is connected to a database server and retrieves CIM data from the database server. Retrieving corresponding CIM data according to its planned location includes:

[0072] Pre-configure catalog information and account information; the catalog information includes a data resource directory for storing basic information and data sources of data resources; the account information includes account information of the multiple databases;

[0073] According to the catalog information, the database source of the relevant CIM data is determined; according to the database source, the corresponding account information is obtained and an access link is created; according to the planned location, the corresponding CIM data is obtained.

[0074] For the relevant contents involved in the above embodiments 2 to 3, the specific implementation methods can refer to the relevant description part of embodiment 1.

[0075] By virtually restoring the real current environment and spatial structure of the planned area, and then inserting the design scheme of the planning object on this basis, or replacing and comparing multiple schemes, the most suitable scheme is selected to complete the planning and construction scheme design of the area. In this way, many shortcomings of the traditional two-dimensional planning method can be solved. For example, the visualization of the planning object is more intuitive; the spatial structure and size of the planning object can be directly measured in the comparison system; the texture, style, and sense of coordination with the surrounding real environment can be analyzed; the comparison between different planning schemes is more reliable; various spatial, physical and environmental simulation analyses can be performed on the planning area through the three-dimensional visualization display system, which are all difficult to achieve in traditional two-dimensional picture-based planning. At the same time, compared with the two-dimensional expression, the three-dimensionalization of the construction object has the biggest change in visual perception, which is that the form and connotation of visualization have new characteristics and forms. The three-dimensional expression of the object is to design and build the object from a global and all-round perspective, and to visualize the object comprehensively through the full-angle display tool. On this basis, the planning design of the object and the comparison, analysis, and adjustment of various indicators of the construction report can be realized.

[0076] When carrying out the preliminary planning and generation of the project, the spatial location of the project can be checked one by one to see if it meets the planning requirements. Multiple rigid indicators such as volume ratio, building density, green space ratio and green ecological technical indicators in the planning conditions can be automatically compared with the project application information to realize the intelligent review of the planning scheme and the review of relevant clauses in the green ecological technical indicators.

[0077] Those skilled in the art should understand that the modules or steps of the present invention described above can be implemented by a general-purpose computer device, or alternatively, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. The present invention is not limited to any specific combination of hardware and software.

[0078] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. An online multi-dimensional construction project application and collaboration system based on CIM technology, characterized in that: include: The client communicates with the server and includes: The data acquisition module is used to obtain the CIM data of the specified construction application plan and the planning and construction application BIM model from the server; The auxiliary self-review module is used to visualize the CIM data and load the planning and construction reporting BIM model to a selected location; analyze the set planning indicators and determine whether the indicator requirements are met; The auxiliary self-examination module also includes: a scene browsing unit, a scheme self-examination unit, a measurement unit and a scheme comparison unit; the scheme self-examination unit loads the planning and construction application BIM model to a selected location, analyzes the set planning indicators, and determines whether the indicator requirements are met, and the indicators include volume ratio, building density, building height, floor height, and daylighting rate; the scheme comparison unit is used to compare multiple schemes that meet the indicator requirements, display the scene and BIM model, and the analysis results of each set indicator; The loading of the planning and construction BIM model to the selected position includes: separating the topological structure of the BIM model; extracting the corresponding data of the basic frame structure from the BIM model and displaying it at the specified position; separating the topological structure of the BIM model, including the following processes: making an initial judgment on the collision relationship between two components through a directional bounding box; according to the initial judgment result, traversing all the line segments on the edge geometry of one of the components, and performing two-segment ray detection on all the faces of the other component, if they do not intersect, they are classified as non-intersecting; if they intersect, but the distance is greater than the length of the line segment, they are classified as non-intersecting; if they intersect and are less than the length of the line segment, they are classified as intersecting; the boundary geometry points of the two components are respectively aligned with each other The intersection judgment of the faces of the components, if no data appears in the intersection class, it is determined that the two components do not intersect, otherwise if any line segment intersects with any face, it is determined that the two objects collide; to determine whether the two components are in a containment relationship, take all the geometric point positions of the first component as the starting point, emit rays in any direction, and monitor the collision with the second component; if the number of single collisions in all collision information is an odd number, it is determined that the second component contains the first component, if the number of single collisions in all collision information is an even number, it is determined that the second component does not contain the first component; if there are both even and odd numbers in all collision information, it is determined that the second component partially contains the first component, and the second component and the first component collide; The server, which communicates with the client, includes: A construction application plan management module is used to manage the uploaded construction application plan, which includes a planning construction application BIM model and a planning location; The construction application self-review module is used to respond to client requests, retrieve corresponding CIM data according to the planned location of the specified construction application, and feed back the CIM data and the planned construction application BIM model to the client; the retrieval of corresponding CIM data according to the planned location includes: pre-configuring catalog information and account information; the catalog information includes a data resource directory for storing basic information and data sources of data resources; the account information includes account information of multiple databases; according to the catalog information, determine the database source of relevant CIM data; obtain corresponding account information according to the database source and create an access link; obtain corresponding CIM data according to the planned location.

2. The online multi-dimensional construction application and collaboration system for construction projects based on CIM technology as claimed in claim 1, characterized in that: Visualizing the CIM data includes: Performing initial visualization of the CIM data; Get the coordinate position in the scene corresponding to the mouse position, generate a grid of a set size with the position as the center, and display the scene of the nine-square grid composed of the grid and its neighboring grids to view the current plot and surrounding 3D model information.

3. The online multi-dimensional construction application and collaboration system for construction projects based on CIM technology as claimed in claim 1 is characterized in that: It also includes a construction application plan uploading module for uploading the planned construction application plan to the server.

4. The online multi-dimensional construction application and collaboration system for construction projects based on CIM technology as claimed in claim 1, characterized in that: The server is connected to a database server and retrieves CIM data from the database server.

5. The online multi-dimensional construction application and collaboration system for construction projects based on CIM technology as claimed in claim 1 is characterized in that: The system also includes a plurality of review clients connected to the server, for obtaining the construction application plan from the server, and reviewing the construction application plan based on preset indicators.

Images