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Article

Monitoring of the Production Process of Graded Concrete Component Using Terrestrial Laser Scanning

1
Institute of Engineering Geodesy, University of Stuttgart, Geschwister-Scholl-Str. 24D, 70174 Stuttgart, Germany
2
Institute for Lightweight Structures and Conceptual Design, University of Stuttgart, Pfaffenwaldring 7+14, 70569 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Boris Kargoll
Received: 18 March 2021 / Revised: 14 April 2021 / Accepted: 16 April 2021 / Published: 21 April 2021
(This article belongs to the Special Issue 3D Modelling from Point Cloud: Algorithms and Methods)
Accepting the ecological necessity of a drastic reduction of resource consumption and greenhouse gas emissions in the building industry, the Institute for Lightweight Structures and Conceptual Design (ILEK) at the University of Stuttgart is developing graded concrete components with integrated concrete hollow spheres. These components weigh a fraction of usual conventional components while exhibiting the same performance. Throughout the production process of a component, the positions of the hollow spheres and the level of the fresh concrete have to be monitored with high accuracy and in close to real-time, so that the quality and structural performance of the component can be guaranteed. In this contribution, effective solutions of multiple sphere detection and concrete surface modeling based on the technology of terrestrial laser scanning (TLS) during the casting process are proposed and realized by the Institute of Engineering Geodesy (IIGS). A complete monitoring concept is presented to acquire the point cloud data fast and with high-quality. The data processing method for multiple sphere segmentation based on the efficient combination of region growing and random sample consensus (RANSAC) exhibits great performance on computational efficiency and robustness. The feasibility and reliability of the proposed methods are verified and evaluated by an experiment monitoring the production of an exemplary graded concrete component. Some suggestions to improve the monitoring performance and relevant future work are given as well. View Full-Text
Keywords: graded concrete; production monitoring; TLS; region growing; RANSAC; multiple sphere detection; surface modeling graded concrete; production monitoring; TLS; region growing; RANSAC; multiple sphere detection; surface modeling
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MDPI and ACS Style

Yang, Y.; Balangé, L.; Gericke, O.; Schmeer, D.; Zhang, L.; Sobek, W.; Schwieger, V. Monitoring of the Production Process of Graded Concrete Component Using Terrestrial Laser Scanning. Remote Sens. 2021, 13, 1622. https://0-doi-org.brum.beds.ac.uk/10.3390/rs13091622

AMA Style

Yang Y, Balangé L, Gericke O, Schmeer D, Zhang L, Sobek W, Schwieger V. Monitoring of the Production Process of Graded Concrete Component Using Terrestrial Laser Scanning. Remote Sensing. 2021; 13(9):1622. https://0-doi-org.brum.beds.ac.uk/10.3390/rs13091622

Chicago/Turabian Style

Yang, Yihui, Laura Balangé, Oliver Gericke, Daniel Schmeer, Li Zhang, Werner Sobek, and Volker Schwieger. 2021. "Monitoring of the Production Process of Graded Concrete Component Using Terrestrial Laser Scanning" Remote Sensing 13, no. 9: 1622. https://0-doi-org.brum.beds.ac.uk/10.3390/rs13091622

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