Status judging apparatus of structure, state judging system and state judging method

摘要

The object of the present invention is to precisely and remotely perform detection in which distinctive defects such as cracks, peeling and internal cavities of a structure are distinguished. A state determination apparatus according to the present invention includes a displacement calculation unit that calculates a two-dimensional spatial distribution of displacement of the time-series image from a time-series image before and after application of a load on the surface of the structure, a displacement calculation unit that calculates a displacement of the time-Dimensional space distribution of the displacement of the time series image by calculating a correction amount based on the movement amount, and calculating a displacement amount based on the movement amount from a two dimensional space distribution of the displacement of the time series image A displacement separating unit for separating a two-dimensional spatial distribution of displacements of the surface of the structure by subtracting the correction amount, a displacement separating unit for separating a two-dimensional spatial distribution of displacements of the structure surface and the movement amount, And an abnormality determination unit that identifies a defect of the structure based on a comparison between a distribution and a threshold relating to the movement amount.