Utilizing Behavior Simulation in Usage Control for Cyber-Physical Systems

This paper presents a concept for the application of behavioral simulations in the context of usage control for cyberphysical systems. The overall goal is to enable a separation of the usage control from a cyber-physical system, in order to handle the heterogeneity of these systems. According to the concept of behavior prediction based on digital twins, a behavior simulation of the system is used to realize a more detailed usage control. A central aspect of this is the provision of simulation data and results as well as enable usage control to control the simulation. To detail the concept, the roles and tasks of usage control and simulation are discussed to develop an architecture of a service to provide required simulation results. The concept is considered here in particular on the basis of cyber-physical systems in form of computer numerical controlled machines and virtual machining for the behavior simulation, but is also applicable to other kinds of simulations and not limited to the use case of an usage control. The detailing of the individual components depends on the type of simulation used and is therefore done specifically for virtual machining. Further the communication with the behavior simulation, the interfaces for the usage control are described. At least to verify the concept, a prototypical implementation of the simulation service and the integration into the usage control for a cyber-physical system is validated.