Research Initiation Award: A Two-Level Hierarchical ControlModel for the Dynamic Operation of Manufacturing Cell Systems

针对制造单元系统的动态运行，建立了数据库与控制相结合的分层模型。在制造控制层次结构中，单元控制微模型能够自主地对单元内的机器和机器人运动序列进行逻辑控制。使用包含所需过程数据的关系数据库结构，在构建相应的单元控制命令时，通过运行时数据库查询对车间生产订单进行分解。本研究采用了一种集成数据、控制和单元运行特性元模型的新方法，并赋予系统在处理制造单元系统运行中固有的多个动态事件时具有闭环能力。

A hierarchical model that integrates database and control is developed for the dynamic operation of manufacturing cell systems. Within the manufacturing control hierarchy, the cell control micromodel can function autonomously for the logic control of machines and robot move sequence in the cell. With a relational database structure containing required process data, shop production orders are decomposed through run-time database queries in constructing the corresponding cell control commands. This research incorporates a novel approach of integrating data, control, and the cell operating characteristics metamodels and endows the system with a closed-loop ability in dealing with multiple dynamic events inherent in manufacturing cell system operations.