A New Formalism for Modeling of Reactive and Hybrid Systems
Author
Summary, in English
A new Modelica library is presented that is used to model safe hierarchical state machines in combination with any Modelica model, e.g., controllers, logical blocks, and physical systems described by differential-algebraic equations. It has been designed for simple usage, to guarantee safety properties and to harmonise with the design of the new Modelica_EmbeddedSystems library. Furthermore, new blocks are introduced to define actions in a visual way, and not textually. The library is inspired by Statecharts, Sequential Function Charts, Safe State Machines (SSM) and Mode-Automata. It has been designed so that only small extensions to Modelica 3.1 are needed. The algorithms are sketched that are used to guarantee consistent graphs that give a limited number of event iterations. Furthermore, it is shown how a symbolic verifier can be used to guarantee additional properties of state machines.
Department/s
Publishing year
2009
Language
English
Pages
364-377
Publication/Series
[Host publication title missing]
Document type
Conference paper
Topic
- Control Engineering
Keywords
- hybrid systems
- reactive systems
- NuSMV
- Safe State Machines
- Mode-Automata
- Sequential Function Charts
- Statechart
- ModeGraph
Conference name
7th International Modelica Conference, 2009
Conference date
2009-09-20 - 2009-09-22
Conference place
Como, Italy
Status
Published
Research group
- LCCC