CN115186355A - Digital twinning system based on BIM and VR technology - Google Patents
Digital twinning system based on BIM and VR technology Download PDFInfo
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- CN115186355A CN115186355A CN202210863501.7A CN202210863501A CN115186355A CN 115186355 A CN115186355 A CN 115186355A CN 202210863501 A CN202210863501 A CN 202210863501A CN 115186355 A CN115186355 A CN 115186355A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
Abstract
The invention discloses a digital twinning system based on BIM and VR technologies, and relates to the technical field of three-dimensional modeling. The invention comprises a data layer, a service processing layer and a display layer; the data layer is used for storing station data; the station data comprises real-time data and service data; real-time data adopts an XML format and is reported by a data platform through an HTTP protocol; the service data comprises basic information, operation maintenance information, duty information and security information of the equipment; the service processing layer comprises equipment service processing and station service processing; the display layer is accessed through a browser, and BABYLONJS is used for optimizing three-dimensional processing display by using WEBGL technology. According to the invention, a BIM three-dimensional model is generated by recording the machine room required by station engineering and electrical equipment, a WEBGL technology is used, BABYLONJS is introduced to optimize three-dimensional processing and display, a full-scene, full-element and full-life-cycle intelligent station is created, unified platform and quart department cooperation are unified, one-stop management and control are realized, the equipment monitoring efficiency is improved, and the operation and maintenance cost is reduced.
Description
Technical Field
The invention belongs to the technical field of three-dimensional modeling, and particularly relates to a digital twin system based on BIM and VR technologies.
Background
The operation and maintenance of the station depend on real-time data and service data of the equipment, including real-time data and alarm data of a transmitter, electric power, environment and the like, basic information and operation and maintenance information of the equipment, duty information and security information. The data is acquired, processed, stored and analyzed, the result is stored in a data server, and the front end outputs the data to a chart or a table for presentation in a data visualization mode.
With the increase in data volume and the variety of data types, data visualization is becoming complicated and complicated for achieving functions and beauty. The method is mainly characterized in that:
1. the equipment monitoring efficiency is low: flexible adjustment, distributed management of data resources and global management and control cannot be achieved.
2. The operation and maintenance cost is high: delay and possible errors exist in data transmission of all links, and operators on duty and equipment maintenance personnel relate to a large amount of data and are difficult to collaborate with operation and maintenance management.
3. Accident early warning and processing capacity is not enough: failure and alarm information cannot be accurately positioned, manual judgment is needed after an accident happens, and early warning simulation drilling with visual effect cannot be carried out.
Therefore, along with the intellectualization of the station operation and maintenance management by the user, the operation and maintenance personnel can accurately control the operation state of the equipment and carry out the plan processing in time, and a set of digital twin system matched with the intelligent station is created to become a new mainstream trend.
Disclosure of Invention
The invention aims to provide a digital twin system based on BIM and VR technologies, a BIM three-dimensional model is generated through a machine room and electrical equipment required by recording station engineering, a BABYLONJS optimized three-dimensional processing display is introduced by using a WEBGL technology, and the problems of low monitoring efficiency, high operation and maintenance cost, accident early warning and insufficient processing capacity of the existing station equipment are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a digital twin system based on BIM and VR technology, comprising a data layer, a service processing layer and a display layer; the data layer is used for storing station data; the station data comprises real-time data and service data; the real-time data adopts an XML format and is reported by a data platform through an HTTP protocol; the service data comprises basic information, operation maintenance information, duty information and security information of the equipment; the service processing layer comprises equipment service processing and station service processing; the equipment service processing comprises alarm linkage processing, and supports WeChat notification, telephone notification, startup and shutdown operations, alarm threshold acquisition and issuing and running chart acquisition and issuing; the station business processing comprises personnel management, equipment facility life cycle, system flow plan, duty management, maintenance management, overhaul management and technical data management; the display layer is accessed through a browser, and the BABYLONJS is used for optimizing three-dimensional processing display by using WEBGL technology.
As a preferred technical scheme, the interval of the real-time data reporting can be customized; when the real-time data is reported, a back end adopts an asynchronous parallel processing mode to report multiple platforms and multiple types of data simultaneously; the real-time data is divided into structured data and unstructured data; the structured data includes transmitter indicators, power indicators, smoke, water immersion, feed tube temperature, switches, satellite receivers, and alarm information for the device; the unstructured data comprises security video data, frequency modulated and medium wave audio and video of a digital television.
As a preferred technical solution, the processing steps of the display layer are as follows:
step S1: actually measuring the station equipment, and simulating the actual condition of the station engineering by a multi-position, multi-angle and multi-azimuth method;
step S2: recording a machine room and electrical equipment required by station engineering, and drawing a CAD two-dimensional actual measurement drawing of the station engineering;
and step S3: importing a CAD two-dimensional actual measurement drawing into a BIM three-dimensional modeling tool, and obtaining a BIM three-dimensional model according to the control point coordinates;
and step S4: loading equipment indexes, states and alarm information in the environment in the generated BIM three-dimensional model, and adding a highlight indication;
step S5: binding the ID of the generated model with the equipment ID in the database;
step S6: calculating and generating a wire curve according to a three-dimensional geometric figure algorithm on the basis of a BIM three-dimensional figure tool by using a BIM visual programming tool;
step S7: carrying out lightweight processing on BIM by using a 3DMAX tool, reducing the number of model vertexes, accelerating the overall loading speed through model grouping and material multiplexing, and generating a station engineering GIM digital model;
step S8: the data processing of various electrical equipment is standardized, a station engineering equipment monitoring system is constructed, the real-time monitoring, early warning and evaluation functions of the state and the operating environment of the station electrical equipment are carried out, and an information sharing platform is formed.
As a preferred technical solution, in the step S1, the station engineering construction includes a feasibility study phase, a preliminary design phase, a construction drawing phase and an as-built drawing phase.
As a preferable technical solution, in the step S3, before the CAD two-dimensional actual measurement sketch is introduced into the BIM three-dimensional modeling tool, the actual measurement sketch profile needs to be processed in a layered manner to generate a complete CAD actual measurement electrical device drawing; determining the connecting position of the cable according to an electrical equipment completion drawing, and connecting the cable by using the same row as the same serial number to complete the connection processing of the conducting wire; and storing the numbers one by one according to the electrical equipment numbers, and determining the base point of the model according to the geographic coordinates.
In the step S6, preferably, the generating of the wire curve is to generate a planar projection of the wire according to a three-dimensional geometric figure algorithm, determine the positioning point between the electrical devices from a planar projection line between the electrical devices, determine the interface between the devices to which the wire belongs by using a geometric figure intersection algorithm, assign the same ID to each of the interfaces connected to each other, and connect each of the interfaces having the same ID to the generated wire.
As an optimal technical scheme, in the step S8, the information sharing platform first loads the HTML page and the JS, and asynchronously loads the BIM model data through JS processing; the BIM model data is divided into a station anode, a machine room and equipment, and running information, equipment documents and the on-off of the equipment can be displayed by operating the specific equipment.
As a preferable technical scheme, the BIM model uses a BABYLONJS engine to render, performs light source display and shadow processing on the model, simultaneously supports the color change of rotation and movement, and overlaps program content and security video content of the ground digital television.
The invention has the following beneficial effects:
(1) According to the invention, a BIM three-dimensional model is generated by recording the machine room required by station engineering and electrical equipment, a WEBGL technology is used, BABYLONJS is introduced to optimize three-dimensional processing and display, a full-scene, full-element and full-life-cycle intelligent station is created, unified platform and quart department cooperation are unified, one-stop management and control are realized, the equipment monitoring efficiency is improved, and the operation and maintenance cost is reduced.
(2) The invention uses BIM industry general software REVIT to make, and truly restores the station, the machine room and the equipment prototype, the made model is subjected to lightweight processing at 3DSMAX, the number of model vertexes is reduced, the integral loading speed is accelerated through model grouping and material multiplexing, the true three-dimensional rendering effect is realized, and the enterprise management is improved in magnitude from the kernel to the external image.
(3) According to the invention, through excellent simulation capability and AI algorithm, the fault is captured, so that an emergency plan is formulated in advance, accurate positioning and quick response are carried out at the first time of the fault occurrence, simulation early warning is realized, and the risk is reduced.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the operation of a digital twin system based on BIM and VR technology.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is a digital twin system based on BIM and VR technologies, including a data layer, a service processing layer and a display layer; the data layer is used for storing station data; the station data comprises real-time data and service data; real-time data adopts an XML format and is reported by a data platform through an HTTP protocol; the service data comprises basic information, operation maintenance information, duty information and security information of the equipment; the service processing layer comprises equipment service processing and station service processing; the equipment service processing comprises alarm linkage processing, and supports WeChat notification, telephone notification, startup and shutdown operations, alarm threshold acquisition and issuing and operation diagram acquisition and issuing; the station business processing comprises personnel management, equipment facility life cycle, system flow plan, duty management, maintenance management, overhaul management and technical data management; the display layer is accessed through a browser, and the BABYLONJS is used for optimizing three-dimensional processing display by using WEBGL technology.
The interval of real-time data reporting can be customized; when the real-time data is reported, the back end adopts an asynchronous parallel processing mode to report multiple platforms and multiple types of data simultaneously; dividing real-time data into structured data and unstructured data; the structured data includes transmitter indicators, power indicators, smoke, water immersion, feed tube temperature, switches, satellite receivers, and alarm information for the device; the unstructured data comprises security video data, frequency modulation and medium wave audio and video of a digital television;
the data supports distributed storage, and multi-server master-slave backup and clusters can be set according to the safety level and performance requirements.
The processing steps of the display layer are as follows:
step S1: actually measuring the station equipment, and simulating the actual condition of the station engineering by a multi-position, multi-angle and multi-azimuth method;
step S2: recording a machine room and electrical equipment required by station engineering, and drawing a CAD two-dimensional actual measurement drawing of the station engineering;
and step S3: importing a CAD two-dimensional actual measurement drawing into a BIM three-dimensional modeling tool, and obtaining a BIM three-dimensional model according to the control point coordinates;
and step S4: loading equipment indexes, states and alarm information in the environment in the generated BIM three-dimensional model, and adding a highlight indication;
step S5: binding the ID of the generated model with the equipment ID in the database, and displaying the running information, the equipment document and the equipment on-off by operating the specific equipment;
step S6: calculating and generating a wire curve according to a three-dimensional geometric figure algorithm on the basis of a BIM three-dimensional figure tool by utilizing a BIM visual programming tool;
step S7: carrying out lightweight processing on BIM by using a 3DMAX tool, reducing the number of model vertexes, accelerating the overall loading speed through model grouping and material multiplexing, and generating a station engineering GIM digital model;
step S8: the data processing of various electrical equipment is standardized, a station engineering equipment monitoring system is constructed, the real-time monitoring, early warning and evaluation functions of the state and the operating environment of the station electrical equipment are carried out, and an information sharing platform is formed.
In step S1, the station project is established including a feasibility study phase, a preliminary design phase, a construction drawing phase, and an as-built drawing phase.
In the step S3, before the CAD two-dimensional actual measurement sketch is imported into a BIM three-dimensional modeling tool, the actual measurement sketch profile needs to be processed in a picture layer division mode to generate a complete CAD actual measurement electrical equipment drawing; determining the connection position of the cable according to an as-built drawing of the electrical equipment, and connecting the cable by using the same row as the same serial number to complete the connection processing of the lead; and storing the numbers one by one according to the electrical equipment numbers, and determining the base point of the model according to the geographic coordinates.
In step S6, the generating of the wire curve is to generate a planar projection of the wire according to a three-dimensional geometric figure algorithm, determine the positioning point between each two pieces of equipment according to a planar projection line between the electrical equipment, determine the interface between the pieces of equipment to which each wire belongs by using a geometric figure intersection algorithm, assign the same ID to each interface connected with each other, and connect each interface with the same ID through the generated wire.
In the step S8, the information sharing platform loads an HTML page and JS first, and loads BIM model data asynchronously through JS processing; the BIM model data is divided into a station anode, a machine room and equipment, and running information, equipment documents and the on-off of the equipment can be displayed by operating the specific equipment.
The BIM model uses a BABYLONJS engine to render, performs light source display and shadow processing on the model, supports rotation and movement color change, and overlaps program content and security video content of a ground digital television.
Example one
The invention adopts three-dimensional simulation and BIM technology to show the whole layout, the equipment running state and the alarm information of the station. The whole system uses B/S architecture, the back end uses JAVA language development, version 11, SPRING framework, and integrated cache, network processing, security and other modules.
1. Data layer
The station data comprises real-time data and service data of the equipment, the real-time data is reported by the data platform through an HTTP protocol, the data format is XML, and the reporting interval can be set. The back end adopts an asynchronous parallel processing mode to meet the requirement of simultaneously reporting multiple types of data of multiple platforms.
The real-time data is divided into structured data which comprises transmitter indexes, power indexes, smoke, water immersion, feed pipe temperature, a switcher, a satellite receiver and alarm information of equipment; the unstructured data comprises security video data, frequency modulation and medium wave audio and video of a digital television.
The data supports distributed storage, and multi-server master-slave backup and clusters can be set according to the safety level and performance requirements.
2. Business processing layer
The equipment service processing comprises alarm linkage processing, and supports WeChat notification, telephone notification, startup and shutdown operations, alarm threshold acquisition and issuing, and running chart acquisition and issuing;
the station service comprises personnel management, equipment and facility life cycle, system flow plan, duty management, maintenance management, overhaul management and technical data management.
3. Display layer
The display front end is accessed through a browser, and the BABYLONJS is used for optimizing three-dimensional processing display by using WEBGL technology.
The front end loads an HTML page and JS at first, asynchronous loading model data is processed through the JS, and the model data is divided into a station whole body, a machine room and equipment. And simultaneously loading the equipment indexes, states and alarms in the environment, and adding color highlighting indications. The ID of the model is bound with the equipment ID in the database, and the running information of the equipment, the equipment document and the on-off of the equipment can be displayed by operating the specific equipment.
The model part related to the application document is manufactured by using BIM industry general software REVIT, and the station, the machine room and the equipment prototype are really restored. Because the model is displayed in a browser, the manufactured model is subjected to light weight processing at 3DSMAX, and the number of model vertexes is reduced. And the integral loading speed is accelerated by model grouping and material multiplexing.
The display part uses the latest WEBGL2 and supports WEBGPU, and the performance of the display card can be fully utilized. And through the rendering of the BABYLONJS engine, various light source display and shadow processing are supported, and the real scene display is restored. The model supports the change of rotating and moving colors and can superpose program contents of the ground digital television and video contents of security protection.
It should be noted that, in the above system embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing associated hardware, and the corresponding program may be stored in a computer-readable storage medium.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A digital twin system based on BIM and VR technique comprises a data layer, a service processing layer and a display layer; the method is characterized in that:
the data layer is used for storing station data; the station data comprises real-time data and service data; the real-time data adopts an XML format and is reported by a data platform through an HTTP protocol; the service data comprises basic information, operation maintenance information, duty information and security information of the equipment;
the service processing layer comprises equipment service processing and station service processing; the equipment service processing comprises alarm linkage processing, and supports WeChat notification, telephone notification, startup and shutdown operations, alarm threshold acquisition and issuing and running chart acquisition and issuing; the station business processing comprises personnel management, equipment facility life cycle, system flow plan, duty management, maintenance management, overhaul management and technical data management;
the display layer is accessed through a browser, and the BABYLONJS is used for optimizing three-dimensional processing display by using WEBGL technology.
2. The BIM and VR based digital twin system of claim 1 wherein the interval of real-time data reporting is customizable; when the real-time data is reported, the back end adopts an asynchronous parallel processing mode to report multiple platforms and multiple types of data simultaneously; the real-time data is divided into structured data and unstructured data; the structured data includes transmitter indicators, power indicators, smoke, water immersion, feed tube temperature, switches, satellite receivers, and alarm information for the device; the unstructured data comprises security video data, frequency modulated and medium wave audio and video of a digital television.
3. A digital twinning system based on BIM and VR technology as claimed in claim 1, wherein the display layer is processed by the following steps:
step S1: actually measuring the station equipment, and simulating the actual condition of the station engineering by a multi-position, multi-angle and multi-azimuth method;
step S2: recording a machine room and electrical equipment required by station engineering, and drawing a CAD two-dimensional actual measurement drawing of the station engineering;
and step S3: importing a CAD two-dimensional actual measurement drawing into a BIM three-dimensional modeling tool, and obtaining a BIM three-dimensional model according to the control point coordinates;
and step S4: loading equipment indexes, states and alarm information in the environment in the generated BIM three-dimensional model, and adding a highlight indication;
step S5: binding the ID of the generated model with the equipment ID in the database;
step S6: calculating and generating a wire curve according to a three-dimensional geometric figure algorithm on the basis of a BIM three-dimensional figure tool by using a BIM visual programming tool;
step S7: carrying out lightweight processing on BIM by using a 3DMAX tool to generate a station engineering GIM digital model;
step S8: the data processing of various electrical equipment is standardized, a station engineering equipment monitoring system is constructed, the real-time monitoring, early warning and evaluation functions of the state and the operating environment of the station electrical equipment are carried out, and an information sharing platform is formed.
4. A digital twin system based on BIM and VR technology as claimed in claim 3, wherein the step S1, station engineering establishment includes feasibility study phase, preliminary design phase, construction drawing phase and completion drawing phase.
5. The BIM and VR technology-based digital twinning system of claim 3, wherein in step S3, before the CAD two-dimensional actual measurement sketch is introduced into the BIM three-dimensional modeling tool, the actual measurement sketch profile needs to be processed in a layered manner to generate a complete CAD actual measurement electrical equipment drawing; determining the connecting position of the cable according to an electrical equipment completion drawing, and connecting the cable by using the same row as the same serial number to complete the connection processing of the conducting wire; and storing the numbers one by one according to the electrical equipment numbers, and determining the base point of the model according to the geographic coordinates.
6. The BIM and VR based digital twinning system of claim 3, wherein the step S6 of generating the wire curve is to generate a planar projection of the wire according to a three-dimensional geometric algorithm, to find the positioning points between each two electrical devices according to the planar projection line between the two electrical devices, to find the interfaces between the devices to which each wire belongs by using a geometric intersection algorithm, to assign the same ID to each interface, and to connect each interface with the same ID through the generated wire.
7. The BIM and VR based digital twin system of claim 3, wherein in step S8, the information sharing platform first loads the HTML page and the JS, and asynchronously loads the BIM model data through the JS processing; the BIM model data is divided into a station anode, a machine room and equipment, and running information, equipment documents and the on-off of the equipment can be displayed by operating the specific equipment.
8. The BIM and VR based digital twinning system of claim 7, wherein the BIM model is rendered using a BABYLONJS engine, light source display and shading of the model while supporting rotational movement color changes and superimposing terrestrial digital television program content and security video content.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115550199A (en) * | 2022-11-29 | 2022-12-30 | 泽恩科技有限公司 | BIM-based full-life-cycle digital twin system |
| CN115908762A (en) * | 2022-11-11 | 2023-04-04 | 广州烽云信息科技有限公司 | Wisdom computer lab based on BIM remote monitoring and operation |
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2022
- 2022-07-20 CN CN202210863501.7A patent/CN115186355A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115908762A (en) * | 2022-11-11 | 2023-04-04 | 广州烽云信息科技有限公司 | Wisdom computer lab based on BIM remote monitoring and operation |
| CN115550199A (en) * | 2022-11-29 | 2022-12-30 | 泽恩科技有限公司 | BIM-based full-life-cycle digital twin system |
| CN115550199B (en) * | 2022-11-29 | 2023-04-07 | 泽恩科技有限公司 | BIM-based full-life-cycle digital twin system |
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