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A dynamic optimization method for ships avoiding Taiwan routes based on branch and bound technology

A branch-and-bound, dynamic optimization technology, applied in the field of ship navigation, can solve the problems of automatic design of avoiding Taiwan routes, large amount of calculation, low precision, etc., and achieve the effect of simple design, small amount of calculation, and accurate results.

Active Publication Date: 2019-11-22
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The fan-shaped typhoon avoidance method requires manual plotting and does not realize the automatic design of the typhoon avoidance route. It usually requires multiple adjustments according to typhoon changes, which requires a large amount of calculation and low accuracy.

Method used

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  • A dynamic optimization method for ships avoiding Taiwan routes based on branch and bound technology
  • A dynamic optimization method for ships avoiding Taiwan routes based on branch and bound technology
  • A dynamic optimization method for ships avoiding Taiwan routes based on branch and bound technology

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Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0040] The technical solutions adopted by the present invention to solve its technical problems are:

[0041] 1. First establish a mathematical model

[0042] 1) Grid the navigating sea area of ​​the ship, and establish a two-dimensional xy coordinate axis with a certain point in the sea area as the origin in the navigating sea area. The length of the cell in the x-axis direction is s*cosβ, and the cell length in the y-axis direction is s; where β Is the latitude corresponding to the current grid point; set the starting point of the route as Q(a,b) and the end point as Z(c,d);

[0043] 2) According to the coordinates of eac...

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Abstract

The invention provides a ship typhoon-avoiding course dynamic optimization method based on a branch and bound technique. According to the method of the invention, through establishing a mathematic model, global consideration can be taken according periodical change of the typhoon, and furthermore a more accurate course with high optimization degree is designed. Furthermore the ship typhoon-avoiding course dynamic optimization method has advantages of low calculation amount and simple processing.

Description

Technical field [0001] The invention relates to ship navigation technology, in particular to a dynamic optimization method for ship avoidance routes based on branch and delimitation technology. Background technique [0002] With the rapid development of the world economy, the volume of international cargo transportation continues to increase. Due to the high air transportation costs, most of the international cargo transportation still relies on sea transportation, which provides a huge development space for shipping. However, in today's world shipping competition is becoming increasingly fierce. How to ensure the safety of ships and cargo, reduce operating costs, and improve competitiveness has attracted more and more attention from the shipping industry. [0003] There are dozens of typhoons every year around the world. The strong winds, heavy precipitation, huge waves and storm surges brought about by typhoons pose a major threat to the safety of ships' navigation. Accidents o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04
CPCG06Q10/047
Inventor 张进峰王晓鸥刘永森
Owner WUHAN UNIV OF TECH