A BACnet Gateway for Embedded Web Services

The vision of the smart home is increasingly becoming reality. Devices become smart, interconnected and accessible through the Internet. In the classical building automation domain already a lot of devices are interconnected providing interfaces for control or collecting data. Unfortunately for historical reasons they use specialized protocols for their communication hampering the integration into newly introduced smart home technologies. In order to make use of the valuable information gateways are required. BACnet as a protocol of the building automation domain already can make use of IP and defined a way to represent building data as Web services in general, called BACnet/WS. But using full fledged Web services would require too much resources in the scenario of smart home thus we need a more resource friendly solution. In this work a Devices Profile for Web Services (DPWS) adaptation of the BACnet/WS specification is proposed. DPWS enables Web service conform communication with a focus on a small footprint, which in turn enables interdisciplinary communication of constrained devices.