1. More particularly, the present invention relates to a method for providing information on fuel savings, safe operation, and maintenance by synthetically measuring changes in a marine float, such as the slope in each direction, draft, trim, corrosion, erosion, and cracks of the marine float, and the pressure, stresses, vibrations, and frequencies applied to the marine float, which are caused by aerodynamic environmental internal/external forces and predictively controlling the marine structure based on the measurement.