High-speed 6-DOF structural displacement monitoring by fusing ViSP (Visually Servoed Paired structured light system) and IMU with extended Kalman filter

Cited 6 time in webofscience Cited 0 time in scopus
  • Hit : 298
  • Download : 0
In previous studies, a visually servoed paired structured light system (ViSP) was proposed to estimate structural displacement with high accuracy at low cost. Although the performance of the system has been verified from various simulations and experimental tests, it has a limitation that high-speed dynamic displacement cannot be measured properly due to the relatively low sampling rate. To speed up ViSP, in this paper, an inertial measurement unit (IMU) with a high sampling rate is concurrently used with ViSP in a Kalman filtering framework. By combining measured accelerations and angular velocities from the IMU with the estimated 6-DOF displacement from ViSP, high-speed structural movement can be monitored with high accuracy. In the proposed data fusion method, named ViSP-IMU, random biases of the IMU are calibrated by using the estimated displacement results from ViSP-IMU. We perform experimental tests and verify the efficacy of the proposed algorithm as a promising structural displacement estimation method which guarantees high accuracy and a high sampling rate. Also, the proposed bias compensation method can effectively reduce the displacement estimation error by minimizing the difference between estimated displacements from the IMU and ViSP-IMU. Copyright (c) 2016 John Wiley Sons, Ltd.
Publisher
WILEY
Issue Date
2017-06
Language
English
Article Type
Article
Keywords

MEASURED ACCELERATION; BRIDGE; SENSORS

Citation

STRUCTURAL CONTROL HEALTH MONITORING, v.24, no.6

ISSN
1545-2255
DOI
10.1002/stc.1926
URI
http://hdl.handle.net/10203/223898
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 6 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0