Research on Data Model and Cyber-Physical Systems of Intermediate Products in a Certain Professional Manufacturing Process
Aiming at the problems of complex information and data,fuzzy data relation and incomplete data in the welding process of ship group erection,which lead to difficult scheduling,chaotic production site management and low production efficiency,a data model of ship group production process is established using systems modeling language(SysML)from four aspects:demand,structure,behavior and parameters.The various,heterogeneous and multi-source data are described in a unified manner.A comprehensive evaluation method for the ship manufacturing system is proposed to sort out the correlation between production factors such as man,machine,material,method and environment,and identify the key factors and indicators.Finally,a cyber-physical fusion system(CPS)connecting the production site,data model and application system is built through the Internet of Things technology to carry out real-time monitoring,analysis and decision-making of the field running state.In addition,the model and system can be applied to other intermediate products in the field of shipbuilding.
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