TY - CHAP A1 - Rehe, Grit A1 - Vökler, Sascha A1 - Schneider, Robert ED - Madsen, Ole ED - Berger, Ulrich ED - Møller, Charles ED - Heidemann Lassen, Astrid ED - Vejrum Wæhrens, Brian ED - Shou, Casper T1 - Qualification in Small and Medium-Sized Enterprises as the Key Driver for a Digitalized Economy T2 - The Future of Smart Production for SMEs: A Methodological and Practical Approach Towards Digitalization in SMEs N2 - Transformation processes towards a smart production reshape the way we work. Digitalization and the application of new technologies lead to additional interfaces between man and machine and thus, result in a tremendous change of employment, work environment and workforce qualification. This in turn means, to take full advantage of digitalization employees at all levels and sectors have to be evolved in the transformation process and need to be skilled for the upcoming challenges. To meet this need for qualification and to sensitize especially small and medium-sized enterprises (SMEs) to the matter of digitalization, the Competence Center Cottbus was founded. Through a four-step approach, the Center addresses SMEs at all digitalization levels, from beginners to innovators. The central instrument for the Centers’ work is the self-developed LTA-FIT qualification concept. This concept is designed to impart the required knowledge and competences in accordance with the distinct qualification level of SMEs and their employees. Y1 - 2022 SN - 978-3-031-15427-0 SP - 405 EP - 419 PB - Springer International Publishing CY - Cham ET - 1. Auflage ER - TY - GEN A1 - Friedrich, Maximilian U. A1 - Schneider, Erich A1 - Buerklein, Miriam A1 - Taeger, Johannes A1 - Hartig, Johannes A1 - Volkmann, Jens A1 - Peach, Robert A1 - Zeller, Daniel T1 - Smartphone video nystagmography using convolutional neural networks: ConVNG T2 - Journal of Neurology N2 - Eye movement abnormalities are commonplace in neurological disorders. However, unaided eye movement assessments lack granularity. Although videooculography (VOG) improves diagnostic accuracy, resource intensiveness precludes its broad use. To bridge this care gap, we here validate a framework for smartphone video-based nystagmography capitalizing on recent computer vision advances. Methods A convolutional neural network was fine-tuned for pupil tracking using > 550 annotated frames: ConVNG. In a cross-sectional approach, slow-phase velocity of optokinetic nystagmus was calculated in 10 subjects using ConVNG and VOG. Equivalence of accuracy and precision was assessed using the “two one-sample t-test” (TOST) and Bayesian interval-null approaches. ConVNG was systematically compared to OpenFace and MediaPipe as computer vision (CV) benchmarks for gaze estimation. Results ConVNG tracking accuracy reached 9–15% of an average pupil diameter. In a fully independent clinical video dataset, ConVNG robustly detected pupil keypoints (median prediction confidence 0.85). SPV measurement accuracy was equivalent to VOG (TOST p < 0.017; Bayes factors (BF) > 24). ConVNG, but not MediaPipe, achieved equivalence to VOG in all SPV calculations. Median precision was 0.30°/s for ConVNG, 0.7°/s for MediaPipe and 0.12°/s for VOG. ConVNG precision was significantly higher than MediaPipe in vertical planes, but both algorithms’ precision was inferior to VOG. Conclusions ConVNG enables offline smartphone video nystagmography with an accuracy comparable to VOG and significantly higher precision than MediaPipe, a benchmark computer vision application for gaze estimation. This serves as a blueprint for highly accessible tools with potential to accelerate progress toward precise and personalized Medicine. KW - Digital medicine KW - Nystagmus KW - Eye movement disorders KW - Videooculography KW - Computer vision KW - Telemedicine KW - Precision medicine Y1 - 2022 U6 - https://doi.org/10.1007/s00415-022-11493-1 SN - 1432-1459 VL - 270 SP - 2518 EP - 2530 ER - TY - GEN A1 - Schneider, Robert A1 - Fritsch, Tim A1 - Hernschier, Stephan A1 - Magister, Jan A1 - Täschner, Dirk A1 - Simon, Sylvio ED - Katterfeld, André ED - Krause, Friedrich ED - Fottner, Johannes ED - Günthner, Willibald A. ED - Pfeiffer, Dagmar T1 - Methode zur zustandsbezogenen Instandhaltung auf Grundlage von Schallmessungen am Beispiel ausgewählter Gurtförderanlagen T2 - 27. Fachtagung Schüttgutfördertechnik 2023 : "Innovationen, Nachhaltigkeit, Trends, Effizienz, Lebensdauer" : am 20. und 21. September 2023 in Magdeburg : herausgegeben als Begleitband zur gleichnamigen Fachtagung N2 - Die Erfassung der Eigenschaften von Tragrollen und Fördersystemen ist nicht nur im Rahmen der Fertigung und Qualitätssicherung erforderlich, sondern insbesondere auch nach Inbetriebnahme und während der gesamten Laufzeit der Förderanlage. Im Regelfall erfolgt kurz nach der Erstinbetriebnahme die Abnahmekontrolle durch den Hersteller oder Anlagenbetreiber, indem die im Pflichtenheft aufgeführten Parameter überprüft werden. Bei Inbetriebnahme: - grundsätzliche Funktionskontrolle mit und ohne Fördergut - Anlaufverhalten - Kontrolle auf Gurtschieflauf - Ausrichtung der Gerüstfelder und Tragrollengirlanden - akustische Abnahme für immissionsrelevante Anlagen - zusätzlich Gurtspannung, Kontrolle der Getriebe, Antriebe und Gurttrommeln hinsichtlich elektrischer Parameter, Schlupf usw. Im Zuge des Betriebs tritt kontinuierlicher Verschleiß, insbesondere im Bereich der Tragrollen auf. Um ungeplante Stillstände und Störungen zu vermeiden, werden verschiedene Kontrollen und Instandhaltungsmaßnahmen durchgeführt (Lars Sternitzke, LEAG, 2021): - regelmäßige Kontrollfahrten durch z.B. mobilen Löschtrupp, Überprüfung auf grobe optische und akustische Auffälligkeiten - automatische Wärmebildkameras zur Detektion von Heißläufern, insbesondere bei brandgefährdeten Anlagen (Kohle) - jährliche Schallmessungen bei immissionsrelevanten Anlagen KW - Tragrolle KW - Zustandsbezogene Instandhaltung KW - Verschleiß KW - Akustik KW - Schallleistung KW - Akustische Kamera Y1 - 2023 SN - 978-3-948749-29-3 U6 - https://doi.org/10.25673/97279 SP - 107 EP - 122 ER - TY - GEN A1 - Simon, Sylvio A1 - Taeschner, Dirk A1 - Rieder, Thomas A1 - Schneider, Robert A1 - Hernschier, Stephan A1 - Magister, Jan A1 - Fritsch, Tim A1 - Abbasov, Ilgar A1 - Turabov, Dashqin A1 - Globa, Svetlana T1 - Investigation in characteristics of belt conveyors and their idler rollers for coal-fired power plants T1 - Исследования характеристик ленточных конвейеров и их несущих роликов для угольных электростанций T2 - Safety and Reliability of Power Industry N2 - Belt conveyors are highly efficient systems used in mining and other industries to transport bulk materials, mainly brown coal and overburden, over distances ranging from short distances to several kilometres. For technical reasons, their operation is associated with noise emissions. During inspections and maintenance this can lead to increased noise exposure of employees. In the vicinity of residential buildings or in areas needing protection, exceeding the emission limits can lead to a temporary restriction of the operation of these high performance installations. Measures are required to reduce the noise impact primarily at the source or in the immediate vicinity. The acoustic and mechanical parameters are investigated on a test bench at the Technical University of Brandenburg (BTU) Cottbus-Senftenberg as part of the drive assembly tests in cooperation with LEAG. The stages of these tests are: Run-up test. In this test the supporting roller is accelerated under test load to a circumferential speed of 10 m/s and the sound pressure level is recorded. This makes it possible to calculate the sound emission as a function of the peripheral speed; Recording the geometry of the idler gear. An accurate description of the geometry of the idler housing allows conclusions to be drawn about the possible causes of excitation. The defined characteristics serve to quantify the acoustic effect of the driven rollers and derive specifications for use in belt conveyor systems. Based on the special requirements to the planned belt conveyor system, an adapted selection of low-noise idler rollers can be made at an early stage on the basis of specified parameters and confirmed test results. KW - belt conveyor KW - noise reduction KW - test stand KW - sound pressure level Y1 - 2021 U6 - https://doi.org/10.24223/1999-5555-2021-14-3-125-133 SN - 2542-2057 SN - 1999-5555 VL - 14 IS - 3 SP - 125 EP - 133 ER - TY - CHAP A1 - Maurer, Thomas A1 - Bartsch, Robert A1 - Schneider, Anna A1 - Buczko, Uwe A1 - Gerke, Horst H. T1 - Modellierung der strukturellen Heterogenität in einem künstlichen Wassereinzugsgebiet und Ableitung von hydraulischen Eigenschaften mittels Pedotransferfunktionen T2 - Böden verstehen, Böden nutzen, Böden fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011 Y1 - 2011 UR - http://eprints.dbges.de/705/ ER - TY - GEN A1 - Schneider, Robert A1 - Danneberg, Nina A1 - Rieder, Thomas A1 - Fritsch, Tim A1 - Hernschier, Stephan A1 - Magister, Jan T1 - Presentation of a new type of axial clearance testing device and evaluation of suitable limit values for the axial displaceability rollers with a bearing size of 6308, 6310 and 6312 T2 - “Machine-building and Energy : New Concepts and Technologies” International Scientific-practical Conference materials N2 - In the following, the results of the investigations on rollers with bearing failures from a bearing size above 6308 are presented. The values for the axial clearance were too low, which turned out to be the cause of the damage. DIN 22112 part 2 only lists limit values for the axial displacement of rollers up to a bearing size of 6306. An evaluation of idlers with larger bearings in terms of quality was not possible until now. Based on the results, a new axial test device was developed and comparative tests were carried out on the rollers using the test device from DIN 22112 Part 3. KW - Axial displaceability rollers KW - Bearing KW - Belt conveyor KW - Bulk materials Y1 - 2021 UR - https://www.researchgate.net/publication/392130645_Machine-building_and_Energy_New_Concepts_and_Technologies_International_Scientific-practical_Conference_MATERIALS SP - 45 EP - 47 ER -