Gu Bin

Cyber-physical systems modeling method based on Modelica

Cyber-physical systems (CPS) is an integration of computation with physical systems and physical processes. It is widely used in energy, health and other industrial areas. Modeling and simulation is of the greatest challenges in CPS research. Modelica has a great potentiality in the modeling and simulation of CPS. We analyze the characteristics and requirements of CPS modeling, and also the features of Modelica in the paper. In respect of information model, physical model and model interface, this paper introduces a unified modeling method for CPS, based on Modelica. The method provides a reliable foundation for the design, analysis and verification of CPS.

Modeling and Simulating CAN-Based Cyber-Physical Systems in Modelica

This paper presents a library for modeling and simulating the CAN-based Cyber-Physical Systems. The library is based on modelica language and supports real time task scheduling and CAN-based communication. We describe in detail the implementation of the CAN bus and the real time task scheduling controller. Finally we provide an example of a continuous inverted pendulum model and a CAN-based model to illustrate the simulation features of CPS.