Web lightweight method for railway four-electric engineering BIM model
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An engineering model, lightweight technology, applied in the field of rail transit engineering information management, can solve the problems of unintuitive BIM model visualization, large volume, etc., to ensure efficiency and fluency, ensure aesthetic effects, and achieve the effect of recognition and detection
Active Publication Date: 2020-09-15
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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[0009] The purpose of the present invention is to provide a web lightweight method for the BIM model of the Railway Four Electric Engineering Project, which solves the problems of unintuitive visualization and la...
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[0042] The present invention will be described in detail below in combination with specific embodiments.
[0043] The web lightweight method for the BIM model of the railway four-electric project involved in the present invention is used for lightweight processing and display of the rail transit engineering information BIM model, and is a detection technology for the key feature information of the railway four-electric project model, which specifically includes the following steps:
[0044] Step 1: Establish a standard unit library based on the BIM model of the four-power railway, define the model attributes and establish the corresponding unit model library for the models with professional requirements such as lines, stations, bridges, tunnels, communications, and signals in the four-power project model.
[0045] In step 2, the standard unit models of each profession established in step 1 are used for the general construction of the BIM model of the railway four-power project....
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Abstract
The invention relates to a railway four-electricity engineering BIM model Web lightweight method, which comprises the following steps: establishing a standard unit library based on a railway four-electricity BIM model, and respectively carrying out model attribute definition and establishing a corresponding unit model library; all the professional standard unit models are subjected to railway four-electricity engineering BIM model general building; after classification, different lightweight optimization schemes are used according to different classes, and SIM data files are generated; the method comprises the following steps: constructing a Web lightweight platform by using a Three.js technology, reading an SIM data file, and displaying a railway four-electricity engineering model on Web,thereby realizing detection of key feature information of the railway four-electricity engineering model on the Web lightweight platform. Lightweight processing is performed on the railway four-electric BIM model file through the BIM lightweight plug-in, geometric information and attribute information are extracted from the model data at the same time in the processing process, then deep optimization is performed on the display content through the instantiation technology, and the loading efficiency and fluency are ensured.
Description
technical field [0001] The invention belongs to the technical field of rail transit engineering information management, and in particular relates to a web lightweight method for a BIM model of a railway four-electric project. Background technique [0002] Rail transit is a complex system integrating multiple disciplines and types of work. It is usually composed of rail routes, stations, vehicles, maintenance bases, power supply and transformation, communication signals, command and control centers, etc., involving lines, stations, bridges, Tunnel, locomotive, vehicle, power supply, communication, signal, electromechanical equipment and fire protection system and many other majors. Four electrical engineering includes communication, signal, electric power and electrification, mainly focusing on equipment. These devices are mainly installed on the line, collectively referred to as trackside equipment, or installed in dedicated machine rooms and various operating houses. Tech...
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IPC IPC(8): G06F16/51G06F16/54G06T17/10
CPCG06F16/51G06F16/54G06T17/10
Inventor 董小兵郭世勇杨勇韩旻志
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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