Ship-navigation buoy collision risk degree estimation method based on automatic identification system (AIS)

Abstract

The invention relates to a ship-navigation buoy collision risk degree estimation method based on an automatic identification system (AIS), and belongs to the technical field of navigation channels. The ship-navigation buoy collision risk degree estimation method comprises the steps that a feature point model of a ship is built by obtaining static information in AIS information of the underway ship, and according to the feature point model of the ship, real-time and historical ship positions of the ship, and the heading, the ship position, the heading and the navigation path of ship feature points are predicted; and according to prediction information of the feature point model of the ship and position data of a navigation buoy and the ship, the nearest meeting distance between the navigation buoy and the feature point model of the ship and the traveling distance needed by the ship for reaching the meeting point are calculated, the collision risk degree is estimated in real time according to a collision risk degree estimation model, and the collision risk degree threshold value is calculated in real time according to a collision risk degree threshold value calculating model. Throughthe judging result, a camera on the navigation buoy can be triggered to take photos, and warning reminding can be conducted on the ship; and according to the ship-navigation buoy collision risk degree estimation method, distance measurement sensors or other sensors do not need to be newly additionally arranged, and then whether the ship and the navigation buoy collide or not can be effectively prejudged.

Description

technical field [0001] The invention belongs to the technical field of waterways, and relates to an AIS-based method for estimating the collision risk of a ship-to-navigation mark. Background technique [0002] As a navigation aid for safe navigation of ships, navigation marks are widely used in inland river shoals, submerged reefs, bridge areas, control river sections and other navigable waters. Navigation mark ships are deployed on the water surface of inland waterways to mark the direction, boundaries and obstructions of the waterway, reveal relevant information about the waterway, and point out safe waterways for ships. [0003] With the increase of ship density and turbulent water flow areas, buoy collision accidents occur from time to time. After the buoy collision accident, the buoy and the equipment on the buoy are often damaged, and even major accidents such as the overturning and loss of the buoy ship are caused, resulting in the loss of the navigation aid functio...

AI Technical Summary

Problems solved by technology

[0009] Disadvantages: The method of capturing ship images based on image analysis, analyzing the speed direction, and establishing a model to warn of collisions is complex and time-consuming, and cannot give early warnings of ship-to-navigation collisions in time; Due to factors such as size differences, it is easy to misjudge the risk of ship-to-navigation mark collision

[0025] Secondary average accidents: average accidents re

Images