Browsing by Author "Lai, HF"

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A hybrid specification method for the design of a workcell controller in manufacturing systems
(2001)
Lai, HF
;
Lee, CE
;
工業工程與管理學系
;
Department of Industrial Engineering and Management
This paper presents a hybrid specification method (HSM) for the description and design of a workcell controller in a manufacturing system. This hybrid method integrates the top-down IDEF0 and bottom-up statechart approaches. The high-level functional abstraction of a target system is first decomposed using IDEF0. Statecharts of the overall system are then combined using compositional constructs. programmable logic controller (PLCs) programs that represent the low-level abstraction are finally transformed from the statecharts. To demonstrate the viability of this method, an example of a workcell controller is designed using this method. The proposed method provides an alternative to the traditional top-down decomposition technique with reusable and extendable properties.