Abstract: The simulation and modeling of CPS are of great significance in the development of CPS-System,not only can help testing and validating in the process of building system, but also are the Model-driven development's important part. Cyber physical system can be divided into physical entity and computation entity by means of essence and refining.Physical entity can be constructed by dynamic continuous-and time-based motion-state of behavioral model and using finite statcmachine of behavioral model to carry on construct computation entity. This paper extended these two bcha vioral models through time oriented statcrefinement, and used the extended models to complete the simulation and modeling of CPS, besides, discussed the ability of using Unified Model Language to build computation entity and using Simulink/RTW tools to construct physical entity, and proposed the approach for integration of heterogeneous models at the framework of UML.

Key words: Simulation and modeling of CPS, Physical entity, Computation entity, Behavioral model, Dime oriented state refinement