Rebecca Ilsen

User-Guided Visual Analysis of Cyber-Physical Production Systems

Modern cyber-physical production systems (CPPS) connect different elements like machine tools and workpieces. The constituent elements are often equipped with highperformance sensors as well as information and communication technology, enabling them to interact with each other. This leads to an increasing amount and complexity of data that requires better analysis tools to support system refinement and revision performed by an expert. This paper presents a user-guided visual analysis approach that can answer relevant questions concerning the behavior of cyber-physical systems. The approach generates visualizations of aggregated views that capture an entire production system as well as specific characteristics of individual data features. To show the applicability of the presented methodologies, an exemplary production system is simulated and analyzed. [DOI: 10.1115/1.4034872]

National Integrated Assessment Modelling zur Bewertung umweltpolitischer Instrumente : Entwicklung des otello-Modellsystems und dessen Anwendung auf die Bundesrepublik Deutschland

Auf internationaler Ebene wurden Ziele zur Minderung von Luftschadstoff- und klimarelevanten Emissionen vereinbart, deren Umsetzung den jeweiligen Unterzeichnerstaaten obliegt. Hierzu existieren zahlreiche umweltpolitische Instrumente, deren Effektivitat und Effizienz jedoch schwer abschatzbar sind. Daher ist es das Anliegen des im vorliegenden Buch beschriebenen otello-Modellsystems, solche politischen Instrumente in ihren okologischen und okonomischen Wirkungsmechanismen zu bewerten.

Virtual Test Field for Sustainability Assessment of Cybertronic Production Systems

Studying the goals, ideas and trends of the concept of cybertronic production systems (CTPS) leads to the hypothesis that CTPS supports a sustainable development. The paper proposes an approach for simulating and verifying this hypothesis.Cybertronic production systems are formed by the application of cybertronic systems (CTS) in production. To examine the behavior of cybertronic systems depending on their level of interconnection, intelligence and independence a multi-agent system of a production system is implemented. This simulation system can be used as virtual test field to evaluate impacts of changes in the production system on all level of detail (process, machine tool, factory level) by using sustainability indicators on factory level.Copyright

An Agent-Based Factory Simulation Tool to Assess Energy Consumption in Decentralized Manufacturing Systems: Agent Types and their Tasks

Rising energy costs and volatile energy prices are motivation to integrate energy consumption with planning processes in manufacturing. Since centralized approaches for Manufacturing Control (MC) tend to ignore local energy related information, it is necessary to examine the potential of decentralized MC approaches. For this purpose, a factory simulation tool has been implemented. This paper presents the underlying assumptions behind the simulation tool and how the MC algorithms it uses are implemented using an agent-based simulation approach.