An actor-based framework for asynchronous event-based cyber-physical systems
2021 (English)In: Software and Systems Modeling, ISSN 1619-1366, E-ISSN 1619-1374, Vol. 20, no 3, p. 641-665Article in journal (Refereed) Published
Abstract [en]
In cyber-physical systems like automotive systems, there are components like sensors, actuators, and controllers that communicate asynchronously with each other. The computational model of actors supports modeling distributed asynchronously communicating systems. We propose the Hybrid Rebeca language to support the modeling of cyber-physical systems. Hybrid Rebeca is an extension of the actor-based language Rebeca. In this extension, physical actors are introduced as new computational entities to encapsulate physical behaviors. To support various means of communication among the entities, the network is explicitly modeled as a separate entity from actors. We develop a tool to derive hybrid automata as the basis for the analysis of Hybrid Rebeca models. We demonstrate the applicability of our approach through a case study in the domain of automotive systems. We use the SpaceEx framework for reachability analysis of the case study. Compared to hybrid automata, our results show that for event-based asynchronous models hybrid Rebeca improves analyzability by reducing the number of real variables, and increases modularity and hence, minimizes the number of changes caused by a modification in the model.
Place, publisher, year, edition, pages
SPRINGER HEIDELBERG , 2021. Vol. 20, no 3, p. 641-665
Keywords [en]
Actor model, Cyber-physical systems, Hybrid automata
National Category
Computer Sciences
Identifiers
URN: urn:nbn:se:mdh:diva-54045DOI: 10.1007/s10270-021-00877-yISI: 000636411600001Scopus ID: 2-s2.0-85104023757OAI: oai:DiVA.org:mdh-54045DiVA, id: diva2:1548728
2021-05-032021-05-032024-01-17Bibliographically approved