Research On Digitalized Factories And Some Key Implementation Technologies

The manufacturing composed by many manufacturing enterprises is one of the most important elements in the economy of a country. The rapid growth and quick development information technologies that is represented by the Internet bring both opportunities-and challenges. The innovations and collaborations based on knowledge are the key lbr the manufacturing enterprises in 2l~ century. Tune, Quality, Cost, Services, Innovations and Environment are the six critical elements for success of a manufacturing enterprise. The manufacturing enterprises could do nothing but keep pace of the dynamic and rapid changes of the market. To quickly response to the market change, the manufacturing enterprise should improve the agility of itself; collaborate and share the resources of material, information and knowledge with the associating entities, improve the agility of all the associating members; take the customers as important companions; and take the advantages of information technologies to support the realization of agility. In this dissertation, the Xuzhou Construction Machinery Group Co. and Xuzhou Loading Machinery Factory are taken as the research scenario. The major activities of manufacturing enterprises are researched. The relationships both in a manufacturing enterprise and between the manufacturing enterprise and the associating entities are explored. The concept of Digitalized Factories (DF) is put forward for the first time. The essential feature of a digitalized factory is the digitalization of the follow of information and workflow. The and running modes of DF are analyzed too. The DF Information System (DFIS) model structure that is composed with six views is put forward for the first time after comparing the available enterprise information system model structures. And the modeling method based on the DFIS model structure, object-orient modeling method, UML and associated matrices is developed. The logic framework of DFIS and the Basic Application Platform for Information eXchange and Integration (BAPIXI) for DFIS are developed. Thirteen common service components and interfaces of BAPIXI are drawn out from the applications of DF. The four-tire software mode of BAP1XI is given, and the mechanism of the mode to support the interoperability and share resources is discussed. After analyzing the workflow characters in DF, the framework of workflow management system based on BAPIXI is put forward for the first time. The working mechanism of workflow management system is also discussed. A mechanism for workflow control is researched; the rule of Event-Condition-Action (ECA) is developed into the rule Event-Role-Object-Tool-Condition-Action (EROTCA) to support describing the relationship in workflow management. The method of workflow dynamic encapsulation is described. Some principles for implementation of DF and DFIS are discussed. The perspectives of DF and DFIS are also expected with taking the process of developing ZL5OG type loader in Xuzhou Loading Machinery Factory as an example.