DU Yibo, ZHANG Chengfeng, GONG Shixin. Information model of intelligent fully mechanized working face based on OPC UA[J]. Journal of Mine Automation, 2022, 48(2): 42-48. DOI: 10.13272/j.issn.1671-251x.2021090040
Citation: DU Yibo, ZHANG Chengfeng, GONG Shixin. Information model of intelligent fully mechanized working face based on OPC UA[J]. Journal of Mine Automation, 2022, 48(2): 42-48. DOI: 10.13272/j.issn.1671-251x.2021090040

Information model of intelligent fully mechanized working face based on OPC UA

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  • Received Date: September 12, 2021
  • Revised Date: February 04, 2022
  • Available Online: February 28, 2022
  • In the process of data connection of each system in fully mechanized working face, it is necessary to perform frequent correspondence between the data point table and the semantics, which leads to the surge of system interconnection and data sharing cost of fully mechanized working face. An information model of intelligent fully mechanized working face based on OLE for process control unified architecture(OPC UA) is proposed. According to the physical composition, functional modules and the information flow requirements between modules of intelligent fully mechanized working face, the information model architecture of intelligent fully mechanized working face is proposed by using object-oriented method. On the basis of this architecture, the physical objects and mining process data in fully mechanized working face are digitized and modeled to form a face-level information model. The static attribute set and process attribute set of basic component, monitoring component set and functional component set objects in information model are introduced in detail. The information model of the intelligent fully mechanized working face is instantiated by adopting the combined modeling mode of the OPC UA and the unified modeling language(UML). The UML class diagram is used to assist in the description of the information model structure, and then converted into the OPC UA information model XML description file. The information model structure data and attribute data are mapped to the OPC UA address space model, and the OPC UA server is started. The practical application results show that each system of fully mechanized working face can access the server address space, and successfully obtain the structure of intelligent fully mechanized working face information model and object data semantics, so as to complete the data collection, storage and update quickly. In order to verify the application effect of the information model, based on the OPC UA server, the information management and integrated analysis platform of fully mechanized working face is developed. The field application test show that the monitoring data displayed by the platform is consistent with the actual operation results (the background data are all from the address space information model), thus verifying the feasibility of the information model combined with the OPC UA protocol to realize the information interconnection of fully mechanized working face.
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