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A motion control method for nautical ships based on reinforcement learning intelligent algorithm

A technology of ship movement and intelligent algorithm, which is applied in the field of navigation and navigation, and can solve the problems of high energy consumption restricting the development of long-distance transportation of ships

Active Publication Date: 2020-11-24
SOUTH CHINA UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0002] With the prosperity of the world economy and trade, ships play an increasingly important role in the transportation process, but their high energy consumption also limits the development of long-distance transportation of ships

Method used

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  • A motion control method for nautical ships based on reinforcement learning intelligent algorithm
  • A motion control method for nautical ships based on reinforcement learning intelligent algorithm
  • A motion control method for nautical ships based on reinforcement learning intelligent algorithm

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Embodiment

[0027] Such as figure 1 As shown, a method for controlling the motion of a seagoing ship based on an enhanced learning intelligent algorithm includes the following steps:

[0028] Multi-modal sensors are installed at the corresponding positions on the S1 ship to periodically collect data information about the ship and the surrounding driving environment. The data information includes the attitude information of the ship, the actual position of the ship, the speed of the ship, the wind speed on the sea surface, and the speed of ocean currents.

[0029] S2 performs filtering and fusion processing on the acquired sensor data information to obtain various state data that meet the accuracy requirements, and the normalized environmental state information is:

[0030]

[0031] In the formula, c t is the ship attitude information at the current time t, p t is the actual position information of the ship at the current time t, is the ship speed information at the current time t, ...

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Abstract

A reinforcement learning intelligent algorithm-based navigation ship motion control method disclosed by the present invention comprises the steps of utilizing a multi-mode sensor to acquire various types of important data of the ships; filtering and fusing the obtained data information to obtain various states of data satisfying the precision requirements, wherein the data comprises the attitude information of the ships, the actual positions of the ships, the ship speed, the sea surface wind speed, the ocean current speed and the like; evaluating the actual state data via an evaluation function to obtain an award value at the current moment; learning continuously via a reinforcement learning intelligent algorithm, and finally obtaining the motion control rules of the ships on the differentenvironmental state conditions. The ship motion control method of the present invention is an optimization algorithm that does not depend on an environment model, and compared with a conventional motion control algorithm, is more flexible to control, and can optimize and learn continuously during the usage.

Description

technical field [0001] The invention relates to the field of nautical ships, in particular to a motion control method for a nautical ship based on an enhanced learning intelligent algorithm. Background technique [0002] With the prosperity of the world economy and trade, ships play an increasingly important role in the transportation process, but their high energy consumption also limits the development of long-distance transportation of ships. According to estimates, the fuel costs of shipping companies account for about 40% of the total operating costs. The annual fuel cost of a large shipping company can reach tens or even tens of billions. Ships need to formulate a sailing plan before sailing and adjust it as real-time conditions change; however, there are more than 40 factors that affect the energy saving and emission reduction of ships, and the relationship is intricate, and the real-time and effective dynamic control of ships is one of the most important key point....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/02
CPCG05D1/0206
Inventor 袁银龙俞祝良
Owner SOUTH CHINA UNIV OF TECH
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