17 results for "Birgit Vogel-Heuser"
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A Metric and Visualization of Completeness in Multi-Dimensional Data Sets of Sensor and Actuator Data Applied to a Condition Monitoring Use Case
The so-called ‘Industrie 4.0’ provides high potential for data-driven methods in automated production systems. However, sensor and actuator data gathered during normal operation of the system is often limited to a narrow range of single, specific operating points. This limitation also restricts the…
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Towards Industrial Intrusion Prevention Systems: A Concept and Implementation for Reactive Protection
System intrusions violate the security of a system. In order to maintain it, it is necessary to decrease the chances of intrusions occurring or by detecting them as soon as they ensue in order to respond to them in a timely manner. These responses are divided in two types: passive or reactive…
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Development and Evaluation of a Model for Modular Automation in Plant Manufacturing
The benefit of modular concepts in plant automation is seen ambivalent. On one hand it offers advantages, on the other hand it also sets requirements on the system structure as well as discipline of designer. The main reasons to use modularity in systems design for automation applications in…
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Teaching Styles of Virtual Training Systems for Industrial Applications – A Review of the Literature
The demand for individualized and efficient production yields more capable but also more complex manufacturing environments. Virtual training systems were proposed to train the operators who control and maintain industrial machines. This article reviews such training systems with a focus on their…
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An Interpretable Dual-Phase Framework for Early Bubble Defect Detection in Photoresist Coating
Early detection of bubble defects in photoresist coatings remains challenging owing to severe class imbalance and the risk of defect escape. This paper proposes an interpretable dual-phase framework that integrates Random Forest (RF) prediction with a range-based reliability index for bubble…
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Safe Three-Dimensional Assembly Line Design for Robots Based on Combined Multiobjective Approach
In advanced industrial automation, industrial robots have been widely utilized on assembly lines in order to reduce labor dependence. However, many related layout design approaches proposed are prone to generating unsafe layouts: there generally lacks a consideration regarding robots’ heights and…
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Automatic Visual Leakage Detection and Localization from Pipelines in Chemical Process Plants Using Machine Vision Techniques
Liquid leakage from pipelines is a critical issue in large-scale process plants. Damage in pipelines affects the normal operation of the plant and increases maintenance costs. Furthermore, it causes unsafe and hazardous situations for operators. Therefore, the detection and localization of leakages…
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A deep reinforcement learning based approach for dynamic distributed blocking flowshop scheduling with job insertions
Abstract The distributed blocking flowshop scheduling problem (DBFSP) with new job insertions is studied. Rescheduling all remaining jobs after a dynamic event like a new job insertion is unreasonable to an actual distributed blocking flowshop production process. A deep reinforcement learning (DRL)…
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Transitions in Teaching Mechanical Engineering during COVID-19 crisis
The quality of teaching in mechanical engineering greatly depends on the practical application of the fundamental theory taught. During COVID-19, limited access to in-class lectures, practical courses with demonstrator plants, and active student participation forced us, an institute of a mechanical…
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Visual Leakage Inspection in Chemical Process Plants Using Thermographic Videos and Motion Pattern Detection
Liquid leakage from pipelines is a critical issue in large-scale chemical process plants since it can affect the normal operation of the plant and pose unsafe and hazardous situations. Therefore, leakage detection in the early stages can prevent serious damage. Developing a vision-based inspection…
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Industry 4.0 and Industry 5.0—Inception, conception and perception
Industry 4.0, an initiative from Germany, has become a globally adopted term in the past decade. Many countries have introduced similar strategic initiatives, and a considerable research effort has been spent on developing and implementing some of the Industry 4.0 technologies. At the ten-year mark…
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Engineering Students' Thinking About Technical Systems: An Ontological Categories Approach
This paper aims at identifying ontological categories as higher-order knowledge structures that underlie engineering students' thinking about technical systems. Derived from interviews, these ontological categories include, inter alia, a focus on the behavior, structure, or purpose of a technical…
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Model-Driven Approach for Realization of Data Collection Architectures for Cyber-Physical Systems of Systems to Lower Manual Implementation Efforts
Data collection from distributed automated production systems is one of the main prerequisites to leverage information gain from data analysis in the context of Industrie 4.0, e.g., for the optimization of product quality. However, the realization of data collection architectures is associated with…
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Table‐based formal specification approaches for control engineers—empirical studies of usability
Abstract The dependability characteristic of the control software of manufacturing systems is highlighted more than before, going through repeated changes to cope with various and varying requirements. Formal methods are researched to be applied to automation system engineering to obtain a more…
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Influences of different parameters on selected properties of gears for robot-like systems
For a drive unit for axes of robots and robot-like systems (RLS) usually a motor-gearbox arrangement is chosen due to its high-power density. The combination of a high-ratio gearbox and a high-speed electric motor ensures a very compact and efficient design of the drive train. The transmission…
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BPMN++ to support managing organisational, multiteam and systems engineering aspects in cyber physical production systems design and operation
Interdisciplinary engineering of cyber physical production systems (CPPS) are often subject to delay, cost overrun and quality problems or may even fail due to the lack of efficient information exchange between multiple interdisciplinary teams working in complex networks within and across…
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Interdisciplinary engineering of cyber-physical production systems: highlighting the benefits of a combined interdisciplinary modelling approach on the basis of an industrial case
In the context of cross-disciplinary and cross-company cooperation, several challenges in developing manufacturing systems are revealed through industrial use cases. To tackle these challenges, two propositions are used in parallel. First, coupling technical models representing different content…