Enhanced control application development in Building Automation

Building automation systems (BAS) lack a common application model. Thus, the development of control applications (CAs) is not a very straightforward task and requires profound expertise. When in addition security has to be considered, inexperienced developers are overwhelmed by the manifold demands and constraints. This paper presents an approach to ease the CA development and at the same time to provide security for their execution. The main idea is to base the application model on a generic ontology and to provide a sandbox for the execution environment. The programming concept, configuration and management issues as well as the workflow are described in detail. Finally, a proof of concept for BACnet and KNX is given.