title: Bridge displacement monitoring method based on laser projection-sensing technology.
abstract: 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.
authors: State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116000, China. zhaoxf@dlut.edu.cn.
authors: Xuefeng
authors: X
authors: Zhao
authors: State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116000, China. liuhao200803308@163.com.
authors: Hao
authors: H
authors: Liu
authors: School of Electronic Science and Technique, Dalian University of Technology, Dalian 116000, China. yuyan@dlut.edu.cn.
authors: Yan
authors: Y
authors: Yu
authors: School of Software Technology, Dalian University of Technology, Dalian 116000, China. xxdcan@mail.dlut.edu.cn.
authors: Xiaodong
authors: X
authors: Xu
authors: School of Software Technology, Dalian University of Technology, Dalian 116000, China. huweitong420@gmail.com.
authors: Weitong
authors: W
authors: Hu
authors: School of Software Technology, Dalian University of Technology, Dalian 116000, China. mingchul@dlut.edu.cn.
authors: Mingchu
authors: M
authors: Li
authors: State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology, Dalian 116000, China. oujinping@hit.edu.cn.|School of Civil Engineering, Harbin Institute of Technology, Harbin 150000, China. oujinping@hit.edu.cn.
authors: Jingping
authors: J
authors: Ou