The Modeling Method Of Cyber-Physical Systems Using Medlica

Physical information fusion system (CPS) is a comprehensive computing, networking, and physical environment of the multidimensional complex system, through the3c (Computation, Communication and Control) technology in depth and the organic fusion of collaboration, large engineering system of real-time perception, dynamic Control and information services, has many characteristics, such as efficient, reliable, the application prospect is very broad. UAV(Unmanned Aerial Vehicle) CPS involving mechanical, electronic, classmates, calculation, many fields such as physics, mechanics, so much is necessary to use a kind of interdisciplinary field of unified modeling language (UML) at multiple levels of abstraction, integration, analysis, design for simulation of Modelica suitable for complex physical system modeling, AADL is suitable for modeling complex software systems, especially for embedded systems, in particular, the two together can be very good for UAV CPS.UAV CPS are analyzed, and determine it an interdisciplinary, high real-time performance, high stability, high efficiency of system. Then the Modelica and AADL is introduced, and the advantages of using this two kinds of modeling language. Followed the continuity of physical information fusion system are introduced, according to the three dynamic characteristics of continuous variables:climb, drop and cross, and we use Modelica model, how we apply for the continuity of the CPS system analysis to specific Modelica modeling. Then use Modelica body for UAV, UAV wheels, unmanned aircraft engine modeling, in the process of the components are involved to do a very detailed description. Then use the AADL UAV navigation and positioning system for the design and modeling, using the OSATE tool, simply describes the principle and use method of AADL and OSATE. The whole system by measuring system, computing system, execution system of the three subsystems, respectively for each subsystem has made a reasonable design and modeling, at the same time between each subsystem has a good interface for data exchange. Finally the article expounds the Modelica and AADL is how to cooperate with each other to perform the UAV CPS overall analysis and modeling of physical fusion.