基于元数据的轧钢过程数据空间构建  

Metadata based construction of data space for steel rolling process

作　　者：董洁[1] 康永怡 张红军 彭开香[1] DONG Jie;KANG Yongyi;ZHANG Hongjun;PENG Kaixiang(School of Automation and Electrical Engineering,University of Science and Technology Beijing,Beijing 100083,China;Ansteel Group Co.,Ltd.,Anshan 110023,China)

机构地区：[1]北京科技大学自动化学院,北京100083 [2]鞍钢集团有限公司,辽宁鞍山110023

出　　处：《冶金自动化》2024年第4期9-20,共12页Metallurgical Industry Automation

基　　金：国家重点研发计划项目(2021YFB3301200);国家自然科学基金面上项目(62273031)。

摘　　要：随着制造业的高速发展,数据汇聚困难、缺乏统一表示、集成难度大等数据管理问题降低了工业过程数据利用率,使企业难以对数据进行有效分析。针对以上问题,设计了轧钢过程全生命周期数据空间平台,提出了描述轧钢过程元数据的六维数据模型,通过构建轧钢过程元数据模型,完成数据实体关联网络模型,实现多源异构数据的转换、存储、管理、查询以及分析等任务。通过获取的带钢热连轧过程数据进行数据分析,确定轧制过程元数据的类,在数据统一建模技术基础上提出六维数据模型,依据类与数据之间的关系,构建轧制过程元数据结构模型;根据数据关系及相关属性构建本体模型,完成数据实体关联网络模型;通过数据血缘分析,基于元数据追踪数据流程、数据存储、数据加工和展示等各个环节的信息,并实现数据溯源和数据查询;最后构建轧制过程数据关系及属性的知识图谱,方便用户更直观便捷地查询数据空间中各实体关联关系,并对数据库中的各类元数据进行管理,完成轧制过程数据空间构建。With the rapid development of manufacturing industry,more and more data management problems are gradually exposed,such as difficulties in data aggregation,lack of unified representation of data,and difficulty in data integration,which reduce data utilization and make it difficult for enterprises to analyze data effectively.Aiming at the above problems,a data space platform for the whole life cycle of steel rolling process is designed.A sixdimensional data model is proposed to describe the metadata of steel rolling process,the data entity association network model is completed by constructing the metadata model of steel rolling process,and the tasks of transformation,storage,management,query and analysis of multisource heterogeneous data are realized.The class of rolling process metadata is determined by data analysis of the obtained hot strip rolling process data,and a sixdimensional data model is proposed on the basis of data unified modeling technology,and a rolling process metadata structure model is constructed according to the relationship among class and data.According to the data relationship and related attributes,an ontology model is constructed to complete the data entity association network model;tracking the information of data flow,data storage,data processing and display based on metadata through data consanguinity analysis,and realizing data traceability and data query.Finally,a knowledge graph of data relations and attributes for rolling process is constructed,which is convenient for users to query the association relationships of various entities in the data space more intuitively and conveniently,manage various metadata in the database,and complete the construction of the rolling process data space.

关 键 词：元模型 元数据管理 数据空间 数据血缘 轧钢过程 

分 类 号：TG335.56[金属学及工艺—金属压力加工] TP311.13[自动化与计算机技术—计算机软件与理论]