Ship route planning method based on tidal current and tide prediction information

Abstract

The invention provides a ship route planning method based on tidal current and tide prediction information. The ship route planning method comprises the following steps of: 1, determining the start point, the target point, the planning leaving time and the planning arriving time of a route according to task information, and determining the sailing region according to the start point and the target point, and determining the prediction time range of tidal current and tide according to the leaving and arriving the leaving and arriving times; 2, predicting tidal current and tide according to the sailing region and the prediction time range which are determined in the step 1, acquiring tidal current and tide prediction data which is required by route planning, and storing the data into a file; 3, interpolating based on discrete water depth data in an electronic chart, and acquiring grid water depth data within the sailing region; 4, dividing the sailing region into a seaworthiness region and a prohibited navigation region according to the grid water depth data, the tide prediction data and barrier information in the sailing region; and 5, searching for a best route by an improved firefly algorithm, thus acquiring a route meeting economical and safety requirements. According to the invention, the economical, safe and practical sailing route can be planned.

Description

technical field [0001] The invention relates to a ship path planning method. Background technique [0002] The economy and safety of ship navigation are directly related to the economic benefits and business sources of shipping companies, so they have become the main considerations in planning ship routes. Ships sailing in the sea are inevitably affected by the surrounding marine environment. Among the many marine environment elements, tides and tides have a greater impact on ship navigation. The tide will affect the speed and course of the ship, and the tide will change the sea depth of the navigation area, thereby affecting the navigation economy and safety of the ship. Therefore, it is necessary to consider the influence of tidal currents in the process of route planning for ships. [0003] In recent years, as people pay more and more attention to the marine environment, some researchers have considered the influence of the marine environment in the path planning of und...

AI Technical Summary

Problems solved by technology

However, the method proposed in this patent document is not suitable for ship route planning because tidal currents, as a periodic marine environment element, change every moment

Images