A versatile networked embedded platform for KNX/EIB

The deployment of building automation systems (BAS) allows to increase comfort, safety and security and reduce operational cost at the same time. Today such systems typically follow a twolayered hierarchical approach. While control networks interconnect distributed sensors, actuators and controllers, a backbone provides the necessary infrastructure for management tasks hosted by configuration and management devices. In addition, devices interconnecting the control network with the backbone on the one hand and the backbone with further networks (e.g., the Internet) on the other hand play a strategic role. According to their particular functionality and the resulting demands on the necessary hardware and software support, BAS devices can be categorized in three distinct device classes. Based upon this classification the paper presents a generic hardware and software framework whose flexible design fits all these classes. Devices for a particular purpose (i.e., class) can be derived from the universally applicable, generic framework, easing development. This process is demonstrated for a multi-purpose hardware platform applicable to multiple device classes. Moreover, three case studies for this platform are presented which illustrate how software applications from all classes make use of this universally applicable platform. Praus, Kastner, Neugschwandtner – A versatile networked embedded platform for KNX/EIB KNX Scientific Conference 2006, Vienna 2 KNX Scientific Conference 2006 A versatile networked embedded platform for KNX/EIB – 2 Building Automation Systems • Three level functional model – Field: measuring, moving, switching – Automation: (open and closed loop) control – Management: recording, archiving, central monitoring • Two level network topology