Ship encounter sector space-based risk degree space analysis method

By establishing a dynamic space model based on the risk of the ship encounters fan-shaped space in intelligent ships, the problem of navigation hazard analysis in complex navigation environments is solved, and the advanced analysis of navigation space relationships and the accurate extraction of potential hazard characteristics is achieved, and the safety analysis capabilities of the intelligent navigation system are improved.

CN120065230AActive Publication Date: 2025-05-30DALIAN MARITIME UNIVERSITY
2 Cites 1 Cited by

Patent Information

Application Number
CN202510056966.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-05-30
Estimated Expiration
2045-01-14

AI Technical Summary

Technical Problem

In complex and changeable navigation environments, it is difficult for the existing technology to accurately analyze navigation hazards, especially in busy waters. The navigation space relationship is complex, and it is difficult to fully recognize the dynamic spatial and spatial changes laws and nonlinear spatial characteristics.

Method used

The spatial analysis method based on the danger of the ship encountering a fan-shaped space, by establishing a multi-time, multi-angle, and multi-stage dual-unit dynamic space model, combining the ship's approach rate, dangerous parameters and relative spatial position distribution, establish the sea area space in which the target ship threatens the main ship according to the temporal gradient range, calculate DCPA and TCPA, judge the proximity coefficient and spatial proximity degree, and deeply analyze the potential temporal and space hazard characteristics.

Benefits of technology

It realizes high-order analysis of navigation space relationships, accurately extracts potential dangerous characteristics and space proximity that will encounter space, and improves the safety analysis capabilities of the intelligent navigation system of unmanned ships, especially in complex, multi-obstruction, high-density waters.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to a ship encountering sector space risk degree space analysis method, which comprises the following steps of: establishing a ship encountering sector space model by taking a ship as a center and taking a detection distance R set by a ship-borne radar as a radius; according to the time gradient range, a sea area space, threatening the main ship, of the target ship is established, judgment is carried out according to the approaching coefficient when the two ship fields are tangent, namely the scaling multiple when the distance is closest, and the scaling multiple lt when the distance is closest; 1, continuing the following steps; determining an encounter fan-shaped space set GP after the target ship G is segmented and an encounter fan-shaped space set QP after the main ship Q is segmented; preliminarily judging the relative positions of the two ships according to the DCPA of the ship and the target ship; the minimum vector distance of the two ships is determined according to the relative heading of the two ships, and the space approaching degree of the combined sector GP is calculated. The method is an analysis method which can simplify a ship encounter space vector structure and accurately excavate and extract encounter space situations and space features of ships in different directions.
Need to check novelty before this filing date? Find Prior Art