Radar-based intersection water area ship retrograde running violation judgment method

Abstract

The invention discloses a radar-based intersection water area ship retrograde running violation judgment method. The method aims at a complex intersection water area environment, utilizes a shore-based radar to obtain position data of a ship in an intersection water area, establishes a ship retrograde running violation judgment model, and realizes accurate and reliable judgment of ship retrograde running violation. The method mainly comprises the following steps: firstly, performing coordinate conversion on radar data; then finely analyzing the trajectory data of the ship in the intersection water area; and finally, establishing a ship retrograde traffic violation judgment model, thereby realizing all-weather, uninterrupted, accurate and reliable judgment of the ship retrograde traffic violation. Compared with a traditional method, the method provided by the invention is higher in accuracy, higher in reliability and wider in applicability.

Description

technical field [0001] The invention relates to the field of abnormal behavior analysis of ships, in particular to a method for judging retrograde violations of ships in confluence waters based on radar. Background technique [0002] The vigorous development of my country's social economy has driven the increase of water transport business volume year by year, the scale of inland water transport has grown day by day, and the density of ships in ports and inland waterways has increased sharply. This has also led to an increase in water traffic safety hazards, prominent ship traffic pressure, and environmental pollution in water areas, especially in confluent waters, where the navigation environment is more complicated. The Liuwei estuary of the Yangtze River is the confluence of the two "golden waterways" of the Beijing-Hangzhou Canal and the Yangtze River. It is also a pivotal water area for inland shipping in my country. The flow of ships entering and leaving the canal and ...

AI Technical Summary

Problems solved by technology

The traditional supervision method is that the maritime duty personnel check the AIS (Automatic Identification System) historical trajectory data of ships entering and leaving the estuary through websites such as Chuanxun.com and Baochuan.com, and use their own experience to determine whether the ship has retrograde violations. Behavior, because the update frequency of AIS data is not fixed, the update time is generally more than 20 seconds, and even the AIS data of some ships is updated every ten minutes, resulting in AIS historical track data that cannot objectively reflect the actual track of the ship when entering and leaving the estuary At the same time, this method requires a lot of time and energy for the on-duty personnel, and it is impossible to analyze the trajectories of all ships entering and leaving the estuary without interruption. The efficiency is low and the judgment standard is highly subjective. give different results

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