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A structure's deflection measurement and monitoring system supported by a vision system

Ein bildverarbeitungsbasiertes System zur Messung der Strukturdeformation
Piotr Kohut

Piotr Kohut is an adjunct professor at the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His scientific interests focus on mechatronics, vision systems, methods of image processing and analysis as well as 3D measurement techniques.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A. Mickiewicza 30, 30-059 Cracow, Poland

, Adam Ga̧ska

Adjunct in Laboratory of Coordinate Metrology. He is now a Head of the project, financed by the Polish National Center for Research and Development, regarding usage of Virtual CMM models in industrial conditions.

Laboratory of Coordinate Metrology, Cracow University of Technology, al. Jana Pawla II 37, 31-864 Cracow, Poland

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, Krzysztof Holak

Krzysztof Holak is researcher at the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His works are connected with image processing, analysis, vision measurement systems and non-contact damage detection and localisation.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A. Mickiewicza 30, 30-059 Cracow, Poland

, Ksenia Ostrowska

Adjunct in Laboratory of Coordinate Metrology. She is a Leader of project connected with on-line accuracy assessment of measurements performed on redundant coordinate measuring systems.

Laboratory of Coordinate Metrology, Cracow University of Technology, al. Jana Pawla II 37, 31-864 Cracow, Poland

, Jerzy Sładek

Jerzy Sładek has created and organised Laboratory of Coordinate Metrology. For many years he was a Head of this Laboratory and lead it to become the accredited calibration laboratory. He was involved in many international (EVIGEM, TRACESYS) and national projects (head of 9 projects).

Laboratory of Coordinate Metrology, Cracow University of Technology, al. Jana Pawla II 37, 31-864 Cracow, Poland

, Tadeusz Uhl

Tadeusz Uhl is the head of the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His scientific interests are diagnostics and Structural Health Monitoring of constructions, dynamics of constructions, modal analysis, control systems and mechatronics. He is the author of 16 monographs and over 500 scientific papers.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A. Mickiewicza 30, 30-059 Cracow, Poland

and Ziemowit Dworakowski

Ziemowit Dworakowski is a Ph.D student at the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His research interests include artificial intelligence applied in technical diagnostics, vision systems and mobile robotics.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A.Mickiewicza 30, 30-059 Cracow, Poland

From the journal tm - Technisches Messen

Abstract

In this paper a vision-based method for measuring vertical deflection of large engineering structures under load is presented in example of crane working arm deflection measurements. The deflection is computed by means of a digital image correlation technique embedded in the vision-based system. The results of measurements performed on the vision system were compared with data obtained using a Leica Laser Tracker system. The comparison revealed proper functioning of the developed vision system in industrial conditions.

Zusammenfassung

Dieser Beitrag präsentiert ein bildgestütztes Verfahren zur Messung der vertikalen Auslenkung großer technischer Strukturen unter Belastung am Beispiel von Auslenkungsmessungen eines Kranarms. Die Auslenkungsbestimmung basiert auf digitaler Bildkorrelation. Die mit dem Bildverarbeitungssystem erzielten Messergebnisse wurden mit Daten eines Leica-Lasertracker-Systems verglichen. Der Vergleich zeigt die geeignete Funktionsweise des entwickelten Systems unter industriellen Bedingungen.

About the authors

Piotr Kohut

Piotr Kohut is an adjunct professor at the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His scientific interests focus on mechatronics, vision systems, methods of image processing and analysis as well as 3D measurement techniques.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A. Mickiewicza 30, 30-059 Cracow, Poland

Adam Ga̧ska

Adjunct in Laboratory of Coordinate Metrology. He is now a Head of the project, financed by the Polish National Center for Research and Development, regarding usage of Virtual CMM models in industrial conditions.

Laboratory of Coordinate Metrology, Cracow University of Technology, al. Jana Pawla II 37, 31-864 Cracow, Poland

Krzysztof Holak

Krzysztof Holak is researcher at the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His works are connected with image processing, analysis, vision measurement systems and non-contact damage detection and localisation.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A. Mickiewicza 30, 30-059 Cracow, Poland

Ksenia Ostrowska

Adjunct in Laboratory of Coordinate Metrology. She is a Leader of project connected with on-line accuracy assessment of measurements performed on redundant coordinate measuring systems.

Laboratory of Coordinate Metrology, Cracow University of Technology, al. Jana Pawla II 37, 31-864 Cracow, Poland

Jerzy Sładek

Jerzy Sładek has created and organised Laboratory of Coordinate Metrology. For many years he was a Head of this Laboratory and lead it to become the accredited calibration laboratory. He was involved in many international (EVIGEM, TRACESYS) and national projects (head of 9 projects).

Laboratory of Coordinate Metrology, Cracow University of Technology, al. Jana Pawla II 37, 31-864 Cracow, Poland

Tadeusz Uhl

Tadeusz Uhl is the head of the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His scientific interests are diagnostics and Structural Health Monitoring of constructions, dynamics of constructions, modal analysis, control systems and mechatronics. He is the author of 16 monographs and over 500 scientific papers.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A. Mickiewicza 30, 30-059 Cracow, Poland

Ziemowit Dworakowski

Ziemowit Dworakowski is a Ph.D student at the Department of Robotics and Mechatronics of AGH University of Science and Technology in Cracow. His research interests include artificial intelligence applied in technical diagnostics, vision systems and mobile robotics.

AGH University of Science and Technology, Department of Robotics and Mechatronics, al. A.Mickiewicza 30, 30-059 Cracow, Poland

Received: 2014-6-24
Accepted: 2014-10-6
Published Online: 2014-12-1
Published in Print: 2014-12-28

©2014 Walter de Gruyter Berlin/Boston

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