3 Yong - ho Yoo Energy Interface for Mixed Reality Design Laboratory for Art , Work and Technology Enrique - Schmidt - Straße 7 ( SFG ) 28359 Bremen

A unified interface that can seamlessly merge real/virtual spaces or local/remote spaces are presented as a bi-directional energy interface. An arbitrary system consisted of real/virtual objects has some energy connections between the objects of the system. These energy connections can be simply described by bond graphs. Using the mathematical modeling derived from the bond graphs of the system, we can achieve the unified interfaces between the real/virtual objects of the system as well as simulate the real/virtual objects of the system. We first discuss previous researches about the bi-directional energy interfaces. Next, we briefly review relevant control-theories of modeling physical system and the bond graphs theory as a modern trend of modeling and simulating physical systems. Finally, we introduce the unified energy interface, called HyperBonds Response Module (HBRM), and a road map for its implementation.