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Sequence Planning Using Multiple and Coordinated Sequences of Operations

Kristofer Bengtsson (Institutionen för signaler och system, Automation) ; Patrik Bergagård (Institutionen för signaler och system, Automation) ; Carl Thorstensson (Institutionen för signaler och system, Automation) ; Bengt Lennartson (Institutionen för signaler och system, Automation) ; Knut Åkesson (Institutionen för signaler och system, Automation) ; C. Y. Yuan ; Sajed Miremadi (Institutionen för signaler och system, Automation) ; Petter Falkman (Institutionen för signaler och system, Automation)
IEEE Transactions on Automation Science and Engineering (1545-5955). Vol. 9 (2012), 2, p. 308-319.
[Artikel, refereegranskad vetenskaplig]

The sequential behavior of a manufacturing system results from several constraints introduced during the product, manufacturing, and control logic development. This paper proposes methods and algorithms for automatically representing and visualizing this behavior from various perspectives throughout the development process. A new sequence planning approach is introduced that uses self-contained operations to model the activities and execution constraints. These operations can be represented and visualized from multiple perspectives using a graphical and formal language called Sequences of Operations (SOPs). The operations in a manufacturing system are related to each other in various ways, due to execution constraints expressed by operation pre- and post-conditions. These operation relations include parallel, sequence, arbitrary order, alternative, and hierarchy relations. Based on the SOP language, these relations are identified and visualized in various SOPs and sequences. A software tool, Sequence Planner, has been developed, for organizing the operations into SOPs that visualize only relevant operations and relations. Note to Practitioners-This paper proposes methods and algorithms for a new sequence planning approach in which sequences are automatically created based on the relations among operations instead of having to be manually constructed. Using various views, the sequences of operations related to, for example, part flow, robot operations, and operator tasks, can be visualized. The use of various views helps the user better understand the relations between cell control and mechanical design, and between product design and total system behavior.

Nyckelord: Automation design, control logic design, formal methods, sequence planning, design, art



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Denna post skapades 2012-07-04. Senast ändrad 2016-09-14.
CPL Pubid: 160025

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Automation

Ämnesområden

Produktion
Robotteknik och automation

Chalmers infrastruktur