GNSS-based Multi-Sensor System for Structural Monitoring Applications

Mariusz Figurski, Maciej Wrona

Abstract:	In 2007 the Centre of Applied Geomatics Military University of Technology started measurements aimed at the monitoring of the dynamic and geometry state of the engineering structures using GNSS (Global Navigation Satellite System) technology. Complexity of the problem forces us to apply an integrated system architecture based on real-time measurement techniques like RTK (Real Time Kinematic). This concept is based on simultaneous measuring some selected elements of the structure using various types of sensors (displacement inductive sensors, accelerometers, inclinometers or tilt meters). The challenge at these kind of systems is also reliable transmissions solution. Measurement information from numerous instruments is numerically integrated for determining the investigated parameter, e.g. the displacement vector. The CAG team performed the tests using such a system on the two permanent 500-meters long bridges, the temporary bridge crossing for military purposes and the 300-meters high chimney of the CHP station. The information about displacement vector together with the characteristic frequencies of the structure were determined using different techniques for increasing of its reliability. This paper presents the results of such tests, gives description of the integrated system designed in the CAG and brings forward with the plans for the future.
Published in:	Proceedings of the 2012 International Technical Meeting of The Institute of Navigation January 30 - 1, 2012 Marriott Newport Beach Hotel & Spa Newport Beach, CA
Pages:	186 - 194
Cite this article:	Figurski, Mariusz, Wrona, Maciej, "GNSS-based Multi-Sensor System for Structural Monitoring Applications," Proceedings of the 2012 International Technical Meeting of The Institute of Navigation, Newport Beach, CA, January 2012, pp. 186-194.
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