Persona:
Urquía Moraleda, Alfonso

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ORCID
0000-0003-0124-3111
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Urquía Moraleda
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Alfonso
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2022 - 20232
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search.filters.applied.f.accessLevel: Atribución 4.0 Internacional × search.filters.applied.f.itemFacultad: E.T.S. de Ingeniería Informática ×

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Mostrando 1 - 2 de 2
  • Miniatura
    Publicación
    Cyber–physical system modeling with Modelica using message passing communication
    (Elsevier, 2022-05) Sanz Prat, Víctorino; Urquía Moraleda, Alfonso
    Modelica is an object-oriented modeling language whose design and features facilitate the description of cyber–physical systems (CPS). Message passing communication (MPC), seen as the transmission of impulses of information between model components, eases the description of the discrete-event parts of CPS models. However, Modelica does not currently supports MPC. Modelica supports an equation-based component connection rationale, where Modelica tools automatically transform component connections into model equations, following a physical modeling approach. The differences between MPC and Modelica connections are analyzed. A proposal for supporting MPC in Modelica is presented, inspired by the coupled PDEVS model communication approach. The presented MPC proposal is based on the definition of structures to manage messages, named buffers, interface ports and communication channels. Also, an implementation of the proposed MPC mechanism in the form of a new free Modelica library, named MSGLib, is presented. MSGLib includes functionality to manage and dynamically store messages, and describe component communications. Two examples, a pick and place system and a robotic arm, are presented to demonstrate the use of the library, and its combination with other Modelica models.
  • Miniatura
    Publicación
    MSGLib: A Modelica library for message passing communication
    (Elsevier, 2023-07) Sanz Prat, Víctorino; Urquía Moraleda, Alfonso
    MSGLib is a Modelica library designed and developed to support message passing communication and the management of data structures stored in dynamic memory. The functionality of the library facilitates the description of discrete-event models and their combination with other Modelica functionality. MSGLib has been used as a base to develop other Modelica libraries such as DEVSLib, ARENALib and ABMLib. A new version of MSGLib is presented in this manuscript, that includes user documentation, performance optimization and illustrative examples. The library has been developed and tested under Dymola and OpenModelica, and is freely distributed under the LGPL-3.0 license.