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http://dx.doi.org/10.7734/COSEIK.2018.31.3.141

Two Stage Kalman Filter based Dynamic Displacement Measurement System for Civil Infrastructures  

Chung, Junyeon (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Choi, Jaemook (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Kim, Kiyoung (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Sohn, Hoon (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.31, no.3, 2018 , pp. 141-145 More about this Journal
Abstract
The paper presents a new dynamic displacement measurement system. The developed displacement measurement system consists of a sensor module, a base module and a computation module. The sensor module, which contains a force-balanced accelerometer and low-price RTK-GNSS, measures the high-precision acceleration with sampling frequency of 100Hz, the low-precision displacement and velocity with sampling frequency of 10Hz. The measured data is transferred to the computation module through LAN cable, and precise displacement is estimated in real-time with 100Hz sampling frequency through a two stage Kalman filter. The field test was conducted at San Francisco-Oaklmand Bay bridge, CA, USA to verify the precision of the developed system, and it showed the RMSE was 1.68mm.
Keywords
displacement; Kalman filter; data fusion; sensor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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