Sensors | |
Bridge Displacement Monitoring Method Based on Laser Projection-Sensing Technology | |
Xuefeng Zhao1  Hao Liu1  Yan Yu2  Xiaodong Xu3  Weitong Hu3  Mingchu Li3  Jingping Ou1  | |
[1] State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116000, China; E-Mails:;School of Electronic Science and Technique, Dalian University of Technology, Dalian 116000, China; E-Mail:;School of Software Technology, Dalian University of Technology, Dalian 116000, China; E-Mails: | |
关键词: laser device; laser spot centroid; video; displacement monitoring; | |
DOI : 10.3390/s150408444 | |
来源: mdpi | |
【 摘 要 】
Bridge displacement is the most basic evaluation index of the health status of a bridge structure. The existing measurement methods for bridge displacement basically fail to realize long-term and real-time dynamic monitoring of bridge structures, because of the low degree of automation and the insufficient precision, causing bottlenecks and restriction. To solve this problem, we proposed a bridge displacement monitoring system based on laser projection-sensing technology. First, the laser spot recognition method was studied. Second, the software for the displacement monitoring system was developed. Finally, a series of experiments using this system were conducted, and the results show that such a system has high measurement accuracy and speed. We aim to develop a low-cost, high-accuracy and long-term monitoring method for bridge displacement based on these preliminary efforts.
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190013990ZK.pdf | 2032KB | download |