A Vision System for Identifying Structural Vibration in Civil Engineering Constructions

Civil engineering constructions need to measure their conditions and states using many kinds of contact sensors because they are so huge and change very slowly. The constructions are built for all the citizens, so they must be measured carefully. In this paper, the development results of vision system for the vibration measurement in the civil engineering constructions using camera system are proposed. The system consists of a CCD digital camera, a telephoto lens, Pan & Tilt equipments and a dynamic measurement program. The camera calibrations are carried out for an experiment of the dynamic measurement system on a bridge. The experimental results are achieved on the bridges to verify the effectiveness of and its applicability of the proposed vision system in the practical fields