A VISION SYSTEM FOR VIBRATION MONITORING OF CIVIL ENGINEERING STRUCTURES

被引：126

作者：

Caetano, E. ^{[1
]}

Silva, S. ^{[1
,2
]}

Bateira, J. ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, Dept Civil Engn, Oporto, Portugal

[2] INESC Porto, Oporto, Portugal

来源：

EXPERIMENTAL TECHNIQUES | 2011年 / 35卷 / 04期

基金：

美国国家科学基金会;

关键词：

DYNAMIC MEASUREMENTS; DISPLACEMENT;

D O I：

10.1111/j.1747-1567.2010.00653.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A vision system is designed to observe large structures and serve as a complement to a traditional vibration monitoring system and provide an important data source to achieve a more complete monitoring by enabling the triggering of the acquisition system upon detection of cable vibration events by the camera. The system, formed by a digital camera mounted with high-quality lenses, a computer for image processing, and a data storage unit, the concept of distributed measurement together with spatial characterization of motion. Studies show that the vision system can capture the frequencies of cable vibration and the pedestrians. It is concluded that the vision system has some obvious accuracy disadvantages and the limitations inherent to optical systems, but can provide data of high interest, in particular civil engineering applications.

引用

页码：74 / 82

页数：9