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Ship collision risk determination method based on digital ship domain model

A technology for ship collision and collision risk, which is applied in the field of ship collision risk determination based on the digital ship field model.

Active Publication Date: 2021-03-26
WUHAN UNIV OF TECH
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  • Claims
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Problems solved by technology

However, the application of the ship field in the ship collision risk assessment is mainly based on the azimuth and distance of other ships entering the ship's field, and the traditional collision risk assessment method has limitations in the application of ship collision risk assessment in busy and restricted waters. There are no mature theories and methods for the dynamic risk assessment of ship collision in restricted waters, and there are few literatures that use overlapping areas of ship fields to evaluate the risk of ship collision

Method used

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  • Ship collision risk determination method based on digital ship domain model
  • Ship collision risk determination method based on digital ship domain model
  • Ship collision risk determination method based on digital ship domain model

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Embodiment Construction

[0053] The technical solution of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. A method for determining the risk of ship collision based on a digital ship domain model includes the following steps:

[0054] Step 1. Construct the outer boundary model of the ship domain: First, according to the rules of ship collision avoidance and ship turning performance, take the limit passing between ships as the entry point, and obtain the position point of the other ship when the own ship is the latest to act in the avoidance operation, and use this point As the scale point of the ship's azimuth field, then, classify and discuss the collision avoidance behavior of the ship in different encounter states, and obtain the domain scale expression function of any azimuth of the ship. Finally, based on the quaternary ship domain modeling idea, establish the ship Domain Outer Boundary Model.

[0055] Th...

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Abstract

The invention provides a ship collision risk determination method based on a digital ship domain model, and the method is characterized in that the method comprises the following steps: 1, building aship domain outer boundary model; 2, constructing a digital ship domain model based on the ship domain outer boundary model; and step 3, based on the digital ship domain model, constructing a collision dynamic risk characterization model among single ships and multiple ships in the water area. By applying the method, the accuracy of ship collision risk early warning and forecasting can be effectively improved, the method has important significance in reducing ship collision accidents, and meanwhile, the reasonable layout of maritime affair safety supervision and search and rescue resources canbe supported and optimized.

Description

technical field [0001] The invention belongs to the field of water traffic safety, and in particular relates to a ship collision risk determination method based on a digital ship domain model. Background technique [0002] Early warning of ship collision risk is an important basis for intelligent decision-making of ship collision avoidance and intelligent maritime safety supervision. The traditional early warning method of judging the risk of ship collision by using the distance to closest point of approach (DCPA) and time to closest point of approach (TCPA) and other indicators can be better applied to open waters. However, the application in busy and restricted waters with the characteristics of frequent changes in ship behavior has great limitations, so that there is a high false alarm rate in the traffic management system for collision risk warning based solely on setting DCPA and TCPA thresholds, resulting in In actual work, the VTS watchman often turns off the alarm f...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/15G06Q10/06G08G3/02G06F17/11G06F17/15
CPCG06F30/20G06F30/15G06Q10/0635G08G3/02G06F17/11G06F17/15
Inventor 徐言民谢金鹏刘钊
Owner WUHAN UNIV OF TECH
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