Residential gateways are systems based on different control technologies that provide a unified way of communication for various devices and appliances present in homes and buildings (sensors, control systems, electronic devices, etc.). The massive introduction of residential gateways in the market is often hindered by the lack of intuitive configuration and visualization interfaces. Moreover, users frequently obtain very limited feedback about the status of the building after the actions carried out by the residential gateway, what reduces the confidence in such systems. This paper presents a Virtual Domotic System (VDS), an innovative solution to provide a Virtual Reality interface to manage residential gateways. VDS comprises three main blocks. The first of them is the residential gateway and the associated control devices of the building. The second element is an advanced 3D Virtual Environment that reliably represents the building, the state of control devices and the environmental characteristics (such as lighting or temperature). Finally, the system includes the software that enables the communication and synchronization between the virtual environment and the control technologies and appliances of the building. The VDS introduces a new 3D interaction technique, where the inputs that modify and configure the 3D virtual environment come directly from the sensors and actuators installed in the building
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