NEXUS - POSITIONING AND COMMUNICATION ENVIRONMENT FOR SPATIALLY AWARE APPLICATIONS
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The research project “NEXUS” aims at the development of a generic platform that supports location aware applications for mobile users. It is currently being carried out within a so-called research group supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) in cooperation between the Institute for Photogrammetry, the Institute of Parallel and Distributed High-Performance Systems and the Institute of Communication Networks and Computer Engineering of the University of Stuttgart. A major task of the platform is the providing of a positioning service in outdoor and indoor locations. Additionally a communication environment must be defined to facilitate an exchange between the external information sources and virtual objects. The spatially aware applications are available for the user on small handheld devices like PDAs (Personal Digital Assistants). These computers are equipped with sensors for positioning and mobile communication. In this way, the application is aware of the users’ position within the spatial models. Users are “location aware” and can receive spatial data from distributed servers. In order to support them on their way, several functionalities have to be provided: users have to be able to navigate and to perform queries on their environment, thus an interface to GIS has to be implemented.
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