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  4. Mobile structural health monitoring using quadruped robots
 
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Mobile structural health monitoring using quadruped robots

Publikationstyp
Conference Paper
Date Issued
2022-03
Sprache
English
Author(s)
Smarsly, Kay  
Worm, Mathias 
Dragos, Kosmas  
Peralta Abadia, Jose  
Wenner, Marc  
Hahn, Oliver  
Institut
Digitales und autonomes Bauen B-1  
TORE-URI
http://hdl.handle.net/11420/12866
Citation
Health Monitoring of Structural and Biological Systems XVI (Proc. SPIE 12048, 2022)
Contribution to Conference
SPIE Smart Structures + Nondestructive Evaluation, 2022  
Publisher DOI
10.1117/12.2612344
Scopus ID
2-s2.0-85132015596
Peer Reviewed
true
To mitigate infrastructure deterioration, structural health monitoring (SHM) has been employed for more than half a century, gaining momentum with recent advancements in information, communication, and sensing technologies. In particular, wireless sensor networks have gradually been incorporated into SHM, offering new opportunities towards enhanced flexibility and scalability, as compared to cable-based SHM systems. However, wireless sensor nodes are installed at fixed locations and, causing high installation costs, need to be employed at high density to reliably monitor large infrastructure. This feasibility study proposes quadruped robots for wireless SHM of civil infrastructure, leveraging advantages regarding cost-efficiency and maneuverability. Aiming at cost-efficiency, the quadruped robots are implemented using off-the-shelf components. The robots are equipped with sensors to collect acceleration data relevant to SHM of civil infrastructure, with cameras for navigation, and with embedded algorithms, facilitating autonomous data processing, analysis, synchronization, and communication. The accuracy of the quadruped robots is validated in laboratory tests on a shear-frame structure by comparing the SHM data collected and analyzed by the quadruped robots with SHM data collected by a high-precision cable-based SHM system. Furthermore, the maneuverability and efficiency of the quadruped robots is demonstrated through field tests conducted on a road bridge by comparing the sensor information collected by the robots with the respective sensor information collected by a comprehensive benchmark SHM system. The results confirm that the quadruped robots, as compared to stationary wireless sensor nodes, require a smaller number of nodes to achieve the same sensor information and, as compared to wheeled robots, offer better maneuverability, as critical parts of civil infrastructure may be hard to reach. In summary, this feasibility study represents a first step towards robotic fleets employed for autonomous SHM.
DDC Class
620: Ingenieurwissenschaften
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