Vision-Based Dynamic Displacement Measurement of Isolation Bearing

doi:10.1155/2022/4788014

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Vision-Based Dynamic Displacement Measurement of Isolation Bearing
	He, Yizhe; Dang, Yu
刊名	ADVANCES IN CIVIL ENGINEERING
	2022-08-18
卷号	2022
ISSN号	1687-8086
DOI	10.1155/2022/4788014
英文摘要	The existing computer vision-based structural displacement measurement method can only obtain structural displacement when the camera is fixed or the pose of the camera is known at all times. However, the aforementioned conditions cannot be met when an earthquake occurs. Therefore, this study presents a method to achieve a dynamic displacement measure of an isolated bearing from a video without the known camera motion: two cameras are set up along the horizontal orthogonal direction, and circular targets are set at the upper and lower connecting plates of the isolation bearing. A combination of HSV color space, Canny edge detection, and Hough transform circle detection is used to obtain the dynamic displacement of the isolation bearing. This task is done by measuring the relative displacement between the upper and lower target points. A basic mechanical performance test of LRB500 isolation bearing is used to verify the proposed method. The result shows that the horizontal displacement time history of the isolation bearing obtained by this method is almost the same as the result obtained by the displacement meter whether the camera is moving or fixed. However, compared with the results measured by the displacement meter, the absolute error of the peak horizontal and vertical displacements are both less than 1 mm, which indicates that the proposed method can be used in displacement monitoring under long-term load and earthquake action of isolation bearing.
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000848062400006
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159798]
专题	土木工程学院
作者单位	Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	He, Yizhe,Dang, Yu. Vision-Based Dynamic Displacement Measurement of Isolation Bearing[J]. ADVANCES IN CIVIL ENGINEERING,2022,2022.
APA	He, Yizhe,&Dang, Yu.(2022).Vision-Based Dynamic Displacement Measurement of Isolation Bearing.ADVANCES IN CIVIL ENGINEERING,2022.
MLA	He, Yizhe,et al."Vision-Based Dynamic Displacement Measurement of Isolation Bearing".ADVANCES IN CIVIL ENGINEERING 2022(2022).