A collaborative virtual assembly system based on mobile devices

Adding mobile devices to virtual environment and using them as interactive tool can enhance mobility and the sense of immersion. This paper researches on how to let multi-users work collaboratively through mobile devices in a virtual environment and develops a PDA-based collaborative virtual assembly system supporting multi-user participant. The system let users directly interact with virtual environment through the manipulation of the objects displayed on the PDAs, which makes interaction more intuitive. In this paper, we introduce the main modules of the system, including the data transmission service module and display/interaction module.