Cyber-physical fusion-oriented building information model (BIM) expansion method

A technology of cyber-physical fusion and building information model, which is applied in the field of building information model expansion for cyber-physical fusion, can solve the problem of one-way information transmission, poor versatility, lack of two-way real-time interaction, generalized BIM entities and models and supporting technologies and other issues to achieve the effect of expanding the application space and enriching the theory and method system

Active Publication Date: 2017-12-22
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing research work is still only aimed at a specific problem (such as the expansion of structural sensors, RFID object expansion, etc.), and the versatility is not strong; and most of them can only achieve one-way information transmission, and there is still a lack of solutions for BIM virtual entities. Generalized BIM entities and models and supporting technologies for two-way real-time interaction and animation display of physical entities

Method used

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  • Cyber-physical fusion-oriented building information model (BIM) expansion method
  • Cyber-physical fusion-oriented building information model (BIM) expansion method
  • Cyber-physical fusion-oriented building information model (BIM) expansion method

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Embodiment 1

[0049] A building information model extension method oriented to cyber-physical fusion. The extended framework is composed of BIM virtual space and building physical space. In the existing BIM model framework based on IFC (Industrial Foundation Class) description, new and defined cyber-physical fusion perception Device object 2: used for real-time perception information, which is connected to the physical sensor 7 through the building network driver interface 6, and obtains the operation information of the building physical entity 9 in the building space in real time.

[0050] The cyber-physical fusion sensor object 2 is connected to the conventional building BIM model object 1 through the IFC internal binding mechanism, such as the door (IfcDoor), so that the conventional building BIM model object 1 has the ability to obtain the dynamic information of the corresponding physical entity.

[0051] The cyber-physical fusion controller object I3 is used to encapsulate the control s...

Embodiment 2

[0058] The analog sensor object 21 is a BIM abstract entity that perceives analog signals, and realizes the perception and collection of continuously changing analog values ​​(such as temperature, humidity, illuminance, etc.) of the building physical entity 9 . The cyber-physical fusion analog sensor object defined and described by Express language 21 such as figure 2 As shown, it inherits the element object IfcElement in the existing framework of IFC, obtains identification attributes such as GlobalID, Name, and connection attributes such as Connected to, and newly defines a series of attributes reflecting the characteristics of information physical sensors. The main attributes include real-time engineering measurement values (RTEngineeringValue), real-time original measurement value (RTOriginalValue), engineering measurement value alarm upper limit (AlarmUpLimit), engineering measurement value alarm lower limit (AlarmLowLimit), engineering unit (EngineeringUnit), etc.

[00...

Embodiment 3

[0071] The present invention combines the development of a comprehensive platform for civil air defense engineering operation and maintenance to carry out a functional test and experiment of a building information model extension method oriented to information-physical fusion.

[0072] Figure 11 It shows the BIM operation and maintenance prototype test platform. The BIM operation and maintenance software runs on the monitoring host, and realizes the control of electric airtight valves and fans through 2 Loworks controllers (that is, 1 analog controller and 1 switch controller). real time monitoring.

[0073] Figure 12 It is a BIM operation and maintenance platform test system software interface, which can dynamically present equipment operation data and status. Inside the software, four types of objects defined in the present invention, the cyber-physical fusion sensor, the cyber-physical fusion controller, the cyber-physical fusion actuator, and the cyber-physical fusion ...

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Abstract

The invention discloses a cyber-physical fusion-oriented building information model (BIM) expansion method. The method is used for building construction and operation and maintenance process measurement and control based on a BIM, construction of application software platforms of augmented-reality human-machine interaction and the like and the like, and realizes coupling, linking and state consistency between BIM entities in virtual space and physical building entities in real space. According to the method, a BIM framework based on an IFC (Industrial Foundation Class) is expanded on the basis of conception and thinking of cyber-physical systems (CPS), four new object entities are defined inside the traditional BIM framework, the four objects are associated with other building objects (such as doors) in the BIM framework through related connection mechanisms, the virtual building objects are enabled to have perception, decision-making, control and animation ability, and dynamic interaction to physical building objects is realized. The method accords with application requirements of BIM technology for future dynamic interaction processes, and is compatible with mainstream BIM technology standards.

Description

technical field [0001] The invention relates to the technical field of architecture and civil engineering, in particular to a building information model (BIM) extension method oriented to cyber-physical fusion. Background technique [0002] Building Information Modeling (Building Information Model, BIM) is an important research direction in the field of civil engineering. According to the definition of the national BIM standard in the United States, BIM is the digital expression of the physical and functional characteristics of building facilities and the information of shared knowledge resources, so as to provide support for decision-making activities in the whole life cycle of buildings; while the famous research scholar Eastman believes that BIM refers to A description of the activity of constructing building information. Combining the two definitions, it is not difficult to see that the essence of BIM is to map the physical entities of buildings in the real world into v...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/13
Inventor 杨启亮马智亮邢建春王平孙晓波丁梦莉
Owner TSINGHUA UNIV
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