Title
Modular model-based supervisory controller design for wafer logistics in lithography machines
Abstract
Development of high-level supervisory controllers is an important challenge in the design of high-tech systems. It has become a significant issue due to increased complexity, combined with demands for verified quality, time to market, ease of development, and integration of new functionality. To deal with these challenges, model-based engineering approaches are suggested as a cost-effective way to support easy adaptation, validation, synthesis, and verification of controllers. This paper presents an industrial case study on modular design of a supervisory controller for wafer logistics in lithography machines. The uncontrolled system and control requirements are modeled independently in a modular way, using small, loosely coupled and minimally restrictive extended finite automata. The multiparty synchronization mechanism that is part of the specification formalism provides clear advantages in terms of modularity, traceability, and adaptability of the model. We show that being able to refer to variables and states of automata in guard expressions and state-based requirements, enabled by the use of extended finite automata, provides concise models. Additionally, we show how modular synthesis allows construction of local supervisors that ensure safety of parts of the system, since monolithic synthesis is not feasible for our industrial case.
Year
DOI
Venue
2015
10.1109/MODELS.2015.7338273
2015 ACM/IEEE 18th International Conference on Model Driven Engineering Languages and Systems (MODELS)
Keywords
Field
DocType
modular model-based supervisory controller design,wafer logistics,lithography machines,high-level supervisory controllers,high-tech systems,time to market,model-based engineering approaches,controller verification,controller synthesis,controller validation,controller adaptation,small loosely coupled minimally restrictive extended finite automata,multiparty synchronization mechanism,state-based requirements
Control theory,Synchronization,Expression (mathematics),Systems engineering,Computer science,Automaton,Control engineering,Modular design,Time to market,Modularity,Traceability
Conference
Citations 
PageRank 
References 
4
0.45
21
Authors
7
Name
Order
Citations
PageRank
Bram van der Sanden161.86
M.A. Reniers236932.69
Marc Geilen3134684.30
Twan Basten41833132.45
Johan Jacobs560.87
Jeroen Voeten615921.51
Ramon R. H. Schiffelers7313.57