Unmanned aerial vehicle remote sensing-based wave and floating body movement forecasting system

Abstract

The invention discloses an unmanned aerial vehicle remote sensing-based wave and floating body movement forecasting system, and belongs to the technical field of ships and marine engineering. A shipborne unmanned aerial vehicle is used to obtain a ship's periphery distant wave flow field, and the information on the picture is analyzed and inversely deduced to obtain wave elevation information; thewave elevation information obtained by the unmanned aerial vehicle is processed, and an irregular wave surface is decomposed into superposition of a plurality of regular waves; the moments of all monochromatic waves reaching the ship are calculated according to wave propagation models, the proportion of the monochromatic waves, reaching the ship at every moment, in total monochromatic waves is calculated, and forecasting is carried out if the proportion is higher than a preset threshold; and all monochromatic waves generate wave surfaces according to a predetermined wave model, the wave surfaces are the forecast wave surfaces, and the movement of a floating body is calculated through RAO, a pulse response function and other fast algorithms. The system provides long-period accurate wave field information and self movement forecasting information for offshore structures and engineering work, and improves the working efficiency.

Description

technical field [0001] The invention belongs to the technical field of ships and ocean engineering, and in particular relates to a motion forecasting system for waves and floating bodies based on remote sensing of drones. Background technique [0002] There are extremely rich resources in the ocean, and human beings have been exploring and developing the ocean. Structures such as ships and offshore platforms are important tools for people to carry out operations at sea. When these structures perform tasks at sea, the movement range of the platform or ship is often required to be less than a certain value, otherwise it will interfere with the task and sometimes even threaten the safety of the structure itself. [0003] Ships and platforms are always in the wave field of the ocean, and the influence of waves on the motion of these structures is very important. To accurately predict the motion of ships, the wave field must first be predicted correctly. The traditional wave fo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a wave and floating body motion forecasting system based on UAV remote sensing that can solve the problem of real-time sea wave forecasting

Images