Object-oriented modeling and implementation of control software for a robotic flexible manufacturing cell

FMS intelligent supervision and control 2: Communications among machines under FPSC

“…The fundamental aspects of the object-oriented approach are examined and reasoning systems that help to control the complexity of object-oriented systems are well explained in works by Joanis and Krieger (1992), Lin et al, 1994, andVillaroel at al. 1993.…”

“…Namely, these may be identified as follows: flexible automation [34] following the FMS concept (e.g. Figures 1 and 2); embedded intelligence [2,4,7,[35][36][37] in automation infrastructure and intelligent-agent based integrated control and supervision [12][13][14][15]; and discrete-event supervisory control organizer [29,30,15], in particular. The essential underlying problem in common, it should be noted, is the controlled communication between subsystems (Ashby, 1970;Dou and Peng;1992;Gielingh et al, 1991;Hoare, 1985;Holvoet, 1995;Huvenoit et al, 1995;Kosbar and Schneider, 1992;Planque et al,.…”

“…Hence a number of approaches have been either innovated or newly developed that put an emphasis on the combined computer simulation analysis and synthesis (e.g. Iliev, 1997;Oraifige et al, 1996;Villaroel et al, 1993) on the grounds of techniques of object oriented modeling (OOM), analysis (OOA) and implementation (OOI) (Bennett and Clark, 1994;Booch, 1986;Coad and Yourdon, 1991;Kosbar and Schneider, 1992;Lin et al, 1994). In this research the emphasis is placed on the FMS structures and the point of departure that their control and communications tasks have to be considered as generically inseparable.…”

A service-oriented approach to embedded component-based manufacturing automation

“…In the Object-Oriented architecture, these entities possess the ability to change quickly and correctly without external interventions. In principle, this architecture is based on the development of control software; which involves modeling the entities involved in a cell and their interactions (Dessouky et al, 1995;Lin et al, 1994). The individual entities are responsible for their activities; however, the coordination and synchronisation between these is managed by cell manager.…”

Object-oriented and distributed approach for programming robotic manufacturing cells

“…These approaches usually are based on the development of a unique language for FMC programming, having speci"c interpreters to convert the code to each equipment native language [9]: this is complex and reduced to a limited number of manufacturers. Other object-oriented approaches showed that it is possible to have a #exible programming environment, and still program each equipment using its native language [10,11]. We consider here that for any individual equipment we can de"ne a set of complex functions, which include all the tasks that would require the equipment when inserted into an FMC.…”