一种基于碰撞风险驱动的多无人船协同避碰方法

By constructing a kinematic model of multiple unmanned vessels and screening key neighboring vessels through risk assessment, generating risk-enhanced temporal states, and inputting them into a multi-agent reinforcement learning network, the problem of accuracy and efficiency of cooperative collision avoidance of multiple unmanned vessel systems in partially observable environments is solved, and more efficient cooperative collision avoidance decision-making is achieved.

CN122111030BActive Publication Date: 2026-07-17OCEAN UNIV OF CHINA
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OCEAN UNIV OF CHINA
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing multi-unmanned vessel cooperative collision avoidance methods struggle to accurately identify critical hazardous targets in some observable environments, resulting in high complexity of state representation and insufficient utilization of neighboring vessel motion trends and dynamic risk changes, thus affecting the accuracy and effectiveness of decision-making.

Method used

By establishing a kinematic model of multiple unmanned vessels, constructing a partially observable Markov game process, assessing collision risks and screening key risk neighboring vessels, generating risk-enhanced temporal states, inputting them into a multi-agent reinforcement learning network for training, and outputting a cooperative collision avoidance strategy.

Benefits of technology

It improves the collaborative collision avoidance decision-making capability of multiple unmanned surface vessels in partially observable environments, reduces low-risk information redundancy, lowers the state space dimension, and enhances the efficiency of identification and decision-making for key hazardous targets.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122111030B_ABST
    Figure CN122111030B_ABST
Patent Text Reader

Abstract

本发明提供了一种基于碰撞风险驱动的多无人船协同避碰方法,属于多智能体强化学习与无人船自主航行技术领域;首先构建多无人船运动学模型,然后将碰撞任务建模为部分可观测马尔可夫博弈。基于无人船间相对位置、相对速度,并结合方位修正权重和距离修正权重构建两船碰撞风险评估模型,计算碰撞风险值并筛选关键风险邻船。围绕关键风险邻船构建风险增强状态,生成各无人船的风险增强时序状态,将各无人船风险增强时序状态输入多智能体强化学习网络,通过环境交互、经验存储、采样训练与参数迭代优化策略模型,实现集群协同避碰。本发明提升了关键风险信息利用效率,降低低风险船舶干扰,有效增强了部分可观测环境下多无人船协同避碰性能。
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • A multi-agent reinforcement learning unmanned ship formation collision avoidance method based on policy sequential update

    CN122151957A