Patent ID: 8983780
Filing Date: 2015-03-17
Classification: B63B,B63H,G01C

Abstract:
1. An unmanned drifting substance monitoring buoy that is thrown into a water area where a drifting substance is present and that tracks and monitors the drifting substance, the unmanned drifting substance monitoring buoy comprising: a detecting section that detects a relative location of the drifting substance on a water surface with respect to the unmanned drifting substance monitoring buoy; a measuring section that measures directions and strengths of a wind and a tidal current; a sail whose surface area and direction are adjustable; and an adjusting section that adjusts the surface area and the direction of the sail by (i) inputting, as parameters to a Look-Up Table for calculating an amount of controlling the sail, the relative location of the drifting substance detected by the detecting section and the directions and the strengths of the wind and the tidal current measured by the measuring section, and (ii) calculating the amount of controlling the sail according to the input parameters.