Active anti-collision early-warning method and system for ship in bridge zone

Abstract

The invention relates to an active anti-collision early-warning method and system for a ship in a bridge zone. The method comprises that S1) bridge-zone navigation areas are divided on the basis of anelectronic sea chart; S2) each virtual navigation-mark navigation area is provided with a retrograde motion determining virtual navigation mark close to the boundary of an adjacent navigation bridgeopening; S3) AIS information of the navigation ship in the bridge zone is collected in real time; S4) on the basis of the navigation area of the bridge zone, a collision risk level for evaluating thedriving state of the ship is obtained according to real-time coordinates and bow direction of the ship; and S5) broadcast information corresponding to the collision risk level obtained in the step S4)is emitted to the ship. Compared with the prior art, the risk in colliding with the bridge of the ship can be evaluated on the basis of the AIS information, and navigation-aided services and early-warning information are broadcast for the ship according to the different risk levels.

Description

technical field [0001] The invention relates to the technical field of radio navigation mark and communication, in particular to an active anti-collision warning method and system for ships in a bridge area. Background technique [0002] Bridges are the link and infrastructure for road traffic between rivers, seas, land islands and river banks. With the rapid development of my country's transportation industry, infrastructure construction has accelerated in recent years, and the number of navigable bridges has increased rapidly. A large number of bridges are convenient for people to travel, facilitate road traffic, and promote regional economic development. Due to the occupation and limitation of the navigable waters by bridges, as well as the safety requirements of the bridge itself, this has brought troubles to water activities, especially ship navigation safety and water traffic management. Bridge collision avoidance has always been one of the risk cores in bridge desig...

AI Technical Summary

Problems solved by technology

[0005] First of all, the traditional passive anti-collision methods have defects such as high construction and maintenance management costs and limited anti-collision capabilities, especially for large ships, the anti-collision effect is not good

In addition, this anti-collision method can only passively protect the bridge, and cannot reduce the accident probability of the ship colliding with the bridge. In the process of the accident, it only provides limited anti-collision protection for the bridge, but cannot protect the ship. Once an accident occurs, it will inevitably cause serious consequences.

[0006] Secondly, the traditional existing active anti-collision methods and the research on the information management of bridge beacons have just started in China and are not yet mature; through the construction of VTS, CCTV and other systems, and the development of major supervision methods such as maritime ship cruises, people are required , the input of manpower, material resources, and financial resources is large, and the workload of personnel is large; and there are certain misjudgments when judging the collision risk manually, and there is a large delay in manual alarms, which will inevitably lead to increased management risks.

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