A study on design support system for constructing machine-maintenance training environment based on virtual reality technology

A design support system has been developed for constructing a VR-based training environment for machine maintenance work. The features of the developed design support system are: 1) users can construct various training environments under a GUI environment, 2) the users need not have any expert knowledge about computer programming, 3) a Petri net model is utilized for representing the state transition of objects in the virtual environment, and 4) the constructed environment can be easily changed and reused. In this report, the system configuration, how to model the state transition of objects with a Petri net and the results of system validation experiments are described.