HYBRID MODEL SIMULATION METHOD FOR CYBER-PHYSICAL SYSTEM ENVIRONMENTS

摘要

PURPOSE: A hybrid model simulation method for a cyber-physical system environment is provided to improve a level of simulation by simulating a simple continuous model and a model depicted with a fuzzy rule together. CONSTITUTION: A hybrid model includes a fuzzy inference module and an atomic model based on a DEVS(Discrete Event System Specification). Elements of the atomic model update a state of the model by executing an external state transition function for a given input of the mode. The elements of the atomic model schedule the generation of the next event according to a return value of the fuzzy inference module by transferring the input and the current state of the model to the fuzzy inference module. The elements of the atomic model generate an output by using an output function when the next event is generated and update the state of the model.