在石油、化工行业的生产制造过程中,物料流通数据的不准确、不一致和不完整问题给企业决策带来了不便,大大降低了生产效率。物料平衡系统帮助企业进行生产信息的归集、校正等处理,为企业提供决策支持。企业建模帮助从多个视角对企业结...在石油、化工行业的生产制造过程中,物料流通数据的不准确、不一致和不完整问题给企业决策带来了不便,大大降低了生产效率。物料平衡系统帮助企业进行生产信息的归集、校正等处理,为企业提供决策支持。企业建模帮助从多个视角对企业结构进行描述,为开发企业级系统软件提供了重要依据。其中,ARIS(Architecture of Integrated Information System)方法因开放性好、复杂度低、优化性好、操作性强等特点,被广泛应用于大型系统的建模中。针对石化行业流程的特点,系统地比较了各类建模方法的优缺点,在此基础上,应用ARIS建模方法,对物料平衡系统进行了分析与设计。研究结果表明,该方法对于提高系统设计的准确性和高效性具有较好的应用价值。展开更多
Towards integration of supply chain, manufacturing/production and investment decision making, this paper presents a hierarchical model architecture which contains six sub-models covering the areas of manufacturing con...Towards integration of supply chain, manufacturing/production and investment decision making, this paper presents a hierarchical model architecture which contains six sub-models covering the areas of manufacturing control, production operation, design and revamp, production management, supply chain and investment decision making. Six types of flow, material, energy, information, humanware, partsware and capital are clasified. These flows connect enterprise components/subsystems to formulate system topology and logical structure. Enterprise components/subsystems are abstracted to generic elementary and composite classes. Finally, the model architecture is applied to a management system of an integrated suply chain, and suggestion are made on the usage of the model architecture and further development of the model as well as implementation issues.展开更多
In the research, the definition of production system of integrated agriculture was proposed, and the theoretical basis （system theory, information theory, cybernetics and operational research） and the key technologi...In the research, the definition of production system of integrated agriculture was proposed, and the theoretical basis （system theory, information theory, cybernetics and operational research） and the key technologies were analyzed. Furthermore, IDEFO of production system of integrated agriculture was established and the constituents of different subsystems were analyzed. In addition, the components of the integrated platform, involving operational system, network, distributed database, communication services, information services, development tools, management and application services and platform entrance, were discussed. In agricultural integrated system, relationship among subsystems should be well considered under guidance of system theory in order to better improve controllability and productivity of agricultural activity.展开更多
Complicated mechanical products normally consist of multi-parameter mechanisms.The couplings between two tmechanisms are either strong or weak.The traditional optimal design methods cannot meet the requirements of opt...Complicated mechanical products normally consist of multi-parameter mechanisms.The couplings between two tmechanisms are either strong or weak.The traditional optimal design methods cannot meet the requirements of optimal structural design of the complicated multi-parameter mechanical products.On the basis of analyzing the optimal design methods and the data mining principles,an improved iterative dichotomizer 3(ID3) algorithm is hereby put forth to bring out an optimal design information model integrated with the data mining technology as well as an optimal structural design system of complicated mechanical products based on the data mining principles.The system is demonstrated by the optimal structural design of the mainframe of the full face rock tunnel boring machine(TBM).An example shows that the data mining technology has fully tackled the issues of the optimal structural design of complicated mechanical products.展开更多
文摘在石油、化工行业的生产制造过程中,物料流通数据的不准确、不一致和不完整问题给企业决策带来了不便,大大降低了生产效率。物料平衡系统帮助企业进行生产信息的归集、校正等处理,为企业提供决策支持。企业建模帮助从多个视角对企业结构进行描述,为开发企业级系统软件提供了重要依据。其中,ARIS(Architecture of Integrated Information System)方法因开放性好、复杂度低、优化性好、操作性强等特点,被广泛应用于大型系统的建模中。针对石化行业流程的特点,系统地比较了各类建模方法的优缺点,在此基础上,应用ARIS建模方法,对物料平衡系统进行了分析与设计。研究结果表明,该方法对于提高系统设计的准确性和高效性具有较好的应用价值。
基金Supported by the National Natural Science Foundation of China (No. 79931000) and The State Major Basic Research Development Program (No. G20000263).
文摘Towards integration of supply chain, manufacturing/production and investment decision making, this paper presents a hierarchical model architecture which contains six sub-models covering the areas of manufacturing control, production operation, design and revamp, production management, supply chain and investment decision making. Six types of flow, material, energy, information, humanware, partsware and capital are clasified. These flows connect enterprise components/subsystems to formulate system topology and logical structure. Enterprise components/subsystems are abstracted to generic elementary and composite classes. Finally, the model architecture is applied to a management system of an integrated suply chain, and suggestion are made on the usage of the model architecture and further development of the model as well as implementation issues.
文摘In the research, the definition of production system of integrated agriculture was proposed, and the theoretical basis （system theory, information theory, cybernetics and operational research） and the key technologies were analyzed. Furthermore, IDEFO of production system of integrated agriculture was established and the constituents of different subsystems were analyzed. In addition, the components of the integrated platform, involving operational system, network, distributed database, communication services, information services, development tools, management and application services and platform entrance, were discussed. In agricultural integrated system, relationship among subsystems should be well considered under guidance of system theory in order to better improve controllability and productivity of agricultural activity.
基金the 10th Five Years National Key Technical Equipment Development Project of China(No. ZZ02-03-03-01)
文摘Complicated mechanical products normally consist of multi-parameter mechanisms.The couplings between two tmechanisms are either strong or weak.The traditional optimal design methods cannot meet the requirements of optimal structural design of the complicated multi-parameter mechanical products.On the basis of analyzing the optimal design methods and the data mining principles,an improved iterative dichotomizer 3(ID3) algorithm is hereby put forth to bring out an optimal design information model integrated with the data mining technology as well as an optimal structural design system of complicated mechanical products based on the data mining principles.The system is demonstrated by the optimal structural design of the mainframe of the full face rock tunnel boring machine(TBM).An example shows that the data mining technology has fully tackled the issues of the optimal structural design of complicated mechanical products.
