Friedrich Praus

• Doctor of Technical Sciences
• Professor at University of Applied Sciences Technikum Wien

With today’s ongoing integration of heterogeneous building automation systems, increased comfort, energy efficiency, improved building management, sustainability as well as advanced applications such as active & assisted living scenarios become possible. These smart homes and buildings are implemented as decentralized systems, where embedded device...

Every year life span is increasing and simultaneously the proportion of people with one or more chronic diseases. This paper presents an implementation of a prototype with a decision tree to detect dangerous health conditions for Diabetes Type 1 and Diabetes Type 2. With the information we collect from Personal Health Devices and data from the Acti...

Building automation systems are traditionally concerned with the control of heating, ventilation, and air conditioning, as well as lighting and shading, systems. They have their origin in a time where security has been considered as a side issue at best. Nowadays, with the rising desire to integrate security-critical services that were formerly pro...

When security-critical applications are considered to be integrated into the building automation domain, two requirements need to be fulfilled: providing security features at the network level and support for security mechanisms at the application level. This paper tackles the second goal using domain knowledge based on existing and related interna...

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 t...

The use of IP networks as common backbone is becoming of increased interest in today's building automation systems (BAS). With the use of IP also new attack scenarios that threaten the overall security of BAS are introduced. Due to the absence of native security mechanisms in IP and because of its long standing and pervasive use in the IT world, ma...

The challenge of integrating heterogeneous systems in order to combine their functionality is of utmost importance for the further deployment of building automation systems. The goal is to allow comprehensive communication among the systems. This will provide enhanced possibilities thus making way for intelligent buildings. Traditionally, integrati...

Improved technology and economically feasible costs allow a widespread deployment of embedded systems in various application domains - ranging from integration into cars, industrial automation up to building automation. A sophisticated security architecture considering the challenging constraints on these systems and providing secure communication,...

Many applications such as distributed measurements or real-time networks benefit from a common notion of time. Protocols providing high precision and simple clock synchronization are necessary to achieve such a common time base. However, most of the available protocols are lacking with regard to fault tolerance and performance in case of a fault. T...

The deployment of building automation systems (BAS) allows to increase comfort, safety and security and to reduce operational cost. Today such systems typically follow a two-layered hierarchical approach. While con-trol networks interconnect distributed sensors, actuators and controllers, a backbone provides the necessary in-frastructure for manage...

Enriching Building Automation Systems (BAS) with new services formerly provided by separate subsystems promises synergies, but increases demands on the BAS ar- chitecture. In particular, the integration of security sub- systems significantly tightens security requirements on the protocol of a networked control system. First, this paper gives a surv...

Building Automation Systems (BAS) aim at improving control and management of mechanical and electrical systems in buildings. It is the task of Sensors, Actuators and Controllers (SACs) to interact with the physical environment and perform mea- surement and control tasks. In building automation networks they, typically, consist of a network interfac...