基于OPC UA的数字孪生矿井提升系统信息模型研究

Research on information model of digital twin mine lifting system based on OPC UA

针对矿井提升系统中子系统种类多、设备类型繁杂、数据多源异构,具有语义不同且碎片化的特点,提出了一种基于OPC UA的数字孪生矿井提升系统信息模型构建方法。首先建立了基于OPC UA的数字孪生数据集成体系架构,根据OPC UA建模规则构建矿井提升机系统信息模型,然后通过建模工具UaModeler生成XML描述文件,通过搭建OPC UA服务器将信息模型结构数据与属性集映射在OPC UA地址空间。最后利用OPC UA客户端工具UaExpert连接服务器对信息模型进行测试。结果表明:基于OPC UA的数字孪生矿井提升系统信息模型可以实现多源异构数据的虚实映射,获取信息模型结构与对象数据,实时在数字孪生可视化平台上显示,验证了信息模型的有效性,为矿井提升数字孪生系统提供数据交互服务,实现矿井提升系统的状态监控,故障预警等。

OPC UA-based digital twin mine lifting system information model construction method is proposed for its various subsystems,complex equipment types and heterogeneous data sources.Firstly,the digital twin data integration architecture based on OPC UA is established,and the information model of the mine elevator system is constructed according to the OPC UA information model modeling rules.Then,the XML description file is generated through the modeling tool UaModeler,and the structure data of the information model and the attribute set are mapped in the OPC UA address space by building the OPC UA server.Finally,the information model is tested using the OPC UA client tool UaExpert connection server.The results show that the information model of the digital twin mine lifting system based on OPC UA can realize the virtual and real mapping of multi-source heterogeneous data,obtain the information model structure and object data,and display and prove the effectiveness of the information model on the digital twin visualization platform in real time,provide data interaction service for the digital twin system of the mine upgrading system,and realize the state monitoring and fault early warning of the mine lifting system.