@inproceedings{MinhasLehmannStaedteretal., author = {Minhas, Sarfraz Ul-Haque and Lehmann, Christian and St{\"a}dter, Jost Philipp and Berger, Ulrich}, title = {Reconfigurable Strategies for Manufacturing Setups to confront Mass Customization Challanges}, abstract = {The manufacturing industry is distinguished by regionalization and individualization of products accompaniedby varying customer demands, faster time to market, short innovation cycles and product life cycles. Theintroduction of new materials, new processes as well as struggle to achieve economic and efficient use ofresources has raised complexities to achieve quick and optimal configuration in manufacturing systems. Toresolve the complexities, the reconfiguration at different levels in the manufacturing system is presented byusing three distinct examples. The first example refers to reconfigurable joining cell design for versatile joiningof automotive subassemblies. Second example refers to strategy for quick reconfiguration of robots for precisemachining applications. The third example elaborates fast calibration of monitoring system in joiningprocesses to enable fast reconfiguration of sensors in commissioning as well as in the maintenance.}, language = {en} } @inproceedings{LehmannStaedterBergeretal., author = {Lehmann, Christian and St{\"a}dter, Jost Philipp and Berger, Ulrich and Keller, Sebastian and Gnorski, Harry}, title = {Semi-automated Handling of Manhole Covers for Tank Wagon Processing Using Industrial Robots}, series = {IEEE/RSJ International Conference on Intelligent Robots and Systems, (IROS 2013), Tokyo, Japan, 3 - 7 November 2013}, booktitle = {IEEE/RSJ International Conference on Intelligent Robots and Systems, (IROS 2013), Tokyo, Japan, 3 - 7 November 2013}, language = {en} } @inproceedings{BergerLeZouetal., author = {Berger, Ulrich and Le, Duc Tho and Zou, Wenchao and Lehmann, Christian and St{\"a}dter, Jost Philipp}, title = {Development of a mobile robot system for assembly task on continuous conveyor}, series = {Proceedings, International Conference on Innovative Technologies, IN-TECH 2015, Dubrovnik, Croatia, 09. - 11.09.2015}, booktitle = {Proceedings, International Conference on Innovative Technologies, IN-TECH 2015, Dubrovnik, Croatia, 09. - 11.09.2015}, editor = {Car, Zlatan}, publisher = {Fac. of Engineering, Univ. of Rijeka}, address = {Rijeka}, pages = {331 -- 334}, abstract = {This paper presents a novel approach for automated smart factory based on the ideas of Internet of Things (IoT) and the usage of mobile technology of the german „Industry 4.0" [6]. IoT enables the achievement of greater value and service by exchanging data between different devices and the manufacturer. The data collected from all devices will be exchanged via wireless networks. Mobile technology can be used to cover non value-added processes [3] i.e. transportation in the manufacturing. By combining transportation tasks and value adding production steps, waste of production time, cost and effort can be reduced. This paper presents the first step toward this approach [7]: the mobile robot moves alongside the moving object and executes the manufacturing tasks during its transportation. For the demonstration of the developed solution a mobile platform and an optical measurement system was used. The synchronization between the mobile platform and the object will be experimentally tested. Consequently the results will demonstrate how the mobile robot is able to follow the moving object.}, language = {en} } @inproceedings{LeAndulkarZouetal., author = {Le, Duc Tho and Andulkar, Mayur and Zou, Wenchao and St{\"a}dter, Jost Philipp and Berger, Ulrich}, title = {Self adaptive system for flexible robot assembly operation}, series = {Self adaptive system for flexible robot assembly operation, Emerging Technologies and Factory Automation (ETFA), 2016 IEEE 21st International Conference on, 2016}, booktitle = {Self adaptive system for flexible robot assembly operation, Emerging Technologies and Factory Automation (ETFA), 2016 IEEE 21st International Conference on, 2016}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-1314-2}, doi = {10.1109/ETFA.2016.7733544}, pages = {5}, abstract = {In this paper a flexible robot system for assembly operations in a semi structured environment is proposed. The system uses a moveable robot equipped with an arbitrarily mounted 3D camera and a 2D camera on the robot gripper for accurate object detection. The system is developed based on the Robot Operating System (ROS) and uses the state of the art trajectory planner MoveIt for collision free robot motion planning. The object recognition for the system is performed using a combination of the two camera's and robot end effector and the deviation of objects in the robot workspace is found to be in the range of 2.2 mm along X and Y axes. Furthermore, an implementation procedure of the proposed system for assembly task is explained.}, language = {en} } @inproceedings{LehmannWaechterStaedter, author = {Lehmann, Christian and W{\"a}chter, Kornelius and St{\"a}dter, Jost Philipp}, title = {A variant-flexible assembly cell for hydraulic valve sections using a sensitive lightweight robot}, series = {Robotics in the era of digitalisation, 47th International Symposium on Robotics, June 21-22, 2016, Messe M{\"u}nchen, Entrance East, Munich, Germany}, booktitle = {Robotics in the era of digitalisation, 47th International Symposium on Robotics, June 21-22, 2016, Messe M{\"u}nchen, Entrance East, Munich, Germany}, publisher = {VDE-Verlag}, address = {Berlin [u.a.]}, isbn = {978-3-8007-4231-8}, pages = {645 -- 651}, language = {en} } @inproceedings{LehmannBergerStaedteretal., author = {Lehmann, Christian and Berger, Ulrich and St{\"a}dter, Jost Philipp and Mariani, G. and Armento, A. and Cigarini, M.}, title = {Inline-Qualit{\"a}tspr{\"u}fung f{\"u}r Montageprozesse mittels impedanzgeregeltem Leichtbauroboter}, series = {Automation 2015, Baden-Baden, 11-12 Juni 2015}, booktitle = {Automation 2015, Baden-Baden, 11-12 Juni 2015}, publisher = {VDI-Verlag}, address = {D{\"u}sseldorf}, isbn = {978-3-18-092258-4}, pages = {1035 -- 1044}, language = {de} } @inproceedings{HalbauerLehmannStaedteretal., author = {Halbauer, Marcel and Lehmann, Christian and St{\"a}dter, Jost Philipp and Berger, Ulrich and Leali, Francesco}, title = {Milling strategies optimized for industrial robots to machine hard materials}, series = {2013 IEEE 18th Conference on Emerging Technologies \& Factory Automation (ETFA 2013), Cagliari, Italy, 10 - 13 September 2013, vol. 1}, booktitle = {2013 IEEE 18th Conference on Emerging Technologies \& Factory Automation (ETFA 2013), Cagliari, Italy, 10 - 13 September 2013, vol. 1}, publisher = {IEEE}, address = {Piscataway, NJ}, pages = {375 -- 378}, language = {en} } @inproceedings{HaageHalbauerLehmannetal., author = {Haage, Mathias and Halbauer, Marcel and Lehmann, Christian and St{\"a}dter, Jost Philipp}, title = {Increasing Robotic Machining Accuracy Using Offline Compensation Based on Joint-Motion Simulation}, series = {Proceedings for the joint conference of ISR 2014, 45th International Symposium on Robotics, Robotik 2014, 8th German Conference on Robotics, 2 - 3 June 2014 parallel to Automatica}, booktitle = {Proceedings for the joint conference of ISR 2014, 45th International Symposium on Robotics, Robotik 2014, 8th German Conference on Robotics, 2 - 3 June 2014 parallel to Automatica}, publisher = {VDE-Verlag}, address = {Berlin [u.a.]}, isbn = {978-3-8007-3601-0}, pages = {347 -- 354}, language = {en} } @inproceedings{HalbauerLehmannStaedteretal., author = {Halbauer, Marcel and Lehmann, Christian and St{\"a}dter, Jost Philipp and Berger, Ulrich}, title = {Servicerobotik zum Handhaben biegeschlaffer Teile mittels Tiefenbildsensor}, series = {Automation 2013, 14. Branchentreff der Mess- und Automatisierungstechnik, Kongresshaus Baden-Baden, 25. und 26. Juni 2013}, booktitle = {Automation 2013, 14. Branchentreff der Mess- und Automatisierungstechnik, Kongresshaus Baden-Baden, 25. und 26. Juni 2013}, publisher = {VDI Verlag}, address = {D{\"u}sseldorf}, isbn = {978-3-18-092209-6}, pages = {113 -- 116}, language = {de} } @incollection{LehmannBergerStaedter, author = {Lehmann, Christian and Berger, Ulrich and St{\"a}dter, Jost Philipp}, title = {Anwendungsbeispiele zur Integration heterogener Steuerungssysteme bei robotergest{\"u}tzten Industrieanlagen}, series = {Handbuch Industrie 4.0 : Produktion, Automatisierung und Logistik}, booktitle = {Handbuch Industrie 4.0 : Produktion, Automatisierung und Logistik}, editor = {Vogel-Heuser, Birgit and Bauernhansl, Thomas and Hompel, Michael}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-662-45537-1}, doi = {10.1007/978-3-662-45537-1_49-1}, pages = {1 -- 14}, language = {de} } @incollection{BilousStaedterGebaueretal., author = {Bilous, Vadym and St{\"a}dter, Philipp and Gebauer, Marc and Berger, Ulrich}, title = {Usage of Augmented Reality for Improved Human-Machine Interaction and Real-Time Error Correction of Laboratory Units}, series = {Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021}, booktitle = {Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021}, editor = {Sch{\"u}ppstuhl, Thorsten and Tracht, Kirsten and Raatz, Annika}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-74031-3}, doi = {10.1007/978-3-030-74032-0_22}, pages = {263 -- 274}, language = {en} } @misc{BergerHalbauerLehmannetal., author = {Berger, Ulrich and Halbauer, Marcel and Lehmann, Christian and St{\"a}dter, Jost Philipp}, title = {Pr{\"a}zisionsfr{\"a}sen mit Industrierobotern - Strategien zur Reduzierung und Kompensation von durch Prozesskr{\"a}ften verursachte Genauigkeits-, Positionier- und Fertigungstoleranzabweichungen}, series = {Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb - ZWF}, volume = {107}, journal = {Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb - ZWF}, number = {7-8}, issn = {0947-0085}, pages = {533 -- 536}, language = {de} } @misc{StaedterLehmannHalbaueretal., author = {St{\"a}dter, Jost Philipp and Lehmann, Christian and Halbauer, Marcel and Berger, Ulrich and Gnorski, Harry and Schulze, T.}, title = {Automatisierte robotergest{\"u}tzte Gefahrgutverladung im explosionsgesch{\"u}tzten Outdoorbereich}, series = {Technische Sicherheit}, journal = {Technische Sicherheit}, issn = {2191-0073}, pages = {40 -- 46}, language = {de} } @misc{AssafoStaedterMeiseletal., author = {Assafo, Maryam and St{\"a}dter, Jost Philipp and Meisel, Tenia and Langend{\"o}rfer, Peter}, title = {On the Stability and Homogeneous Ensemble of Feature Selection for Predictive Maintenance: A Classification Application for Tool Condition Monitoring in Milling}, series = {Sensors}, volume = {23}, journal = {Sensors}, number = {9}, issn = {1424-8220}, doi = {10.3390/s23094461}, abstract = {Feature selection (FS) represents an essential step for many machine learning-based predictive maintenance (PdM) applications, including various industrial processes, components, and monitoring tasks. The selected features not only serve as inputs to the learning models but also can influence further decisions and analysis, e.g., sensor selection and understandability of the PdM system. Hence, before deploying the PdM system, it is crucial to examine the reproducibility and robustness of the selected features under variations in the input data. This is particularly critical for real-world datasets with a low sample-to-dimension ratio (SDR). However, to the best of our knowledge, stability of the FS methods under data variations has not been considered yet in the field of PdM. This paper addresses this issue with an application to tool condition monitoring in milling, where classifiers based on support vector machines and random forest were employed. We used a five-fold cross-validation to evaluate three popular filter-based FS methods, namely Fisher score, minimum redundancy maximum relevance (mRMR), and ReliefF, in terms of both stability and macro-F1. Further, for each method, we investigated the impact of the homogeneous FS ensemble on both performance indicators. To gain broad insights, we used four (2:2) milling datasets obtained from our experiments and NASA's repository, which differ in the operating conditions, sensors, SDR, number of classes, etc. For each dataset, the study was conducted for two individual sensors and their fusion. Among the conclusions: (1) Different FS methods can yield comparable macro-F1 yet considerably different FS stability values. (2) Fisher score (single and/or ensemble) is superior in most of the cases. (3) mRMR's stability is overall the lowest, the most variable over different settings (e.g., sensor(s), subset cardinality), and the one that benefits the most from the ensemble.}, language = {en} }