Vision-based measurement systems for static and dynamic characteristics of overhead lines
PBN-AR
Instytucja
Wydział Inżynierii Mechanicznej i Robotyki (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Journal of Vibroengineering
ISSN
1392-8716
EISSN
Wydawca
Journal Vibroengineering
DOI
Rok publikacji
2016
Numer zeszytu
4
Strony od-do
2113--2122
Numer tomu
18
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.7
Słowa kluczowe
EN
transmission lines
deflection measurement
vision system
sag measurement
vibration measurement
Streszczenia
Język
EN
Treść
In the paper, optical-based measurement methods for calculating the deflection and vibration of overhead lines are presented. The authors describe the state of the art in the field of non‑contact examination of static and dynamic overhead transmission line characteristics, and propose concepts of vision-based measurement systems for both static and dynamic states of a structure. The system devoted to static measurements is based on a digital SLR camera and image‑processing software used for the acquisition and interpretation of data. The digital image correlation method, implemented in Wiz2D software, is applied to compute the displacement of the transmission line cable with respect to a known baseline position. Dynamic characteristics of the structure are obtained using a stereo-vision system consisting of two high-speed digital cameras. Corresponding points in two video sequences of the vibrating cable are tracked using TEMA software. 3D positions in a camera frame of reference and displacements are computed using a 3D reconstruction method. The paper describes two series of experiments conducted on a lab setup and the obtained results are examined and discussed.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:099289
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