DEFORMATION AMOUNT MEASUREMENT DEVICE AND DEFORMATION AMOUNT MEASUREMENT METHOD

摘要

To measure deflection amounts and torsion amounts of a boom with a simple configuration.SOLUTION: A controller of a deformation amount measurement device compares first image data created by imaging a first marker of an outrigger with first reference image data memorized in a memory in advance to calculate a distance and a direction from a camera to the first marker, and determines a reference coordinate system on the basis of the calculated distance and direction (S15). Further, the controller compares second image data created by imaging a second marker of a boom with second reference image data memorized in the memory in advance to calculate a distance and a direction from the camera to the second marker, and determines a coordinate position of the second marker in the reference coordinate system on the basis of the calculated distance and direction (S20). The controller calculates flection amounts and torsion amounts of the boom from the determined coordinate position of the second marker (S21).SELECTED DRAWING: Figure 7