1.武汉理工大学交通与物流工程学院,湖北 武汉,430063
2.武汉理工大学国家水运安全工程技术研究中心,湖北 武汉,430063
3.武汉理工大学智能交通系统研究中心,湖北 武汉,430063
兰加芬,博士生,主要从事水路交通感知、船舶操纵等方面的研究。lanjiafen@whut.edu.cn
郑茂,博士,高级工程师。zhengmao@whut.edu.cn
收稿:2023-01-20,
纸质出版:2025-04-05
移动端阅览
兰加芬,郑茂,初秀民,等.利用激光雷达进行船舶位姿感知[J].武汉大学学报(信息科学版),2025,50(4):782-791.
LAN Jiafen,ZHENG Mao,CHU Xiumin,et al.Ship Position and Pose Sensing with LiDAR[J].Geomatics and Information Science of Wuhan University,2025,50(4):782-791.
兰加芬,郑茂,初秀民,等.利用激光雷达进行船舶位姿感知[J].武汉大学学报(信息科学版),2025,50(4):782-791. DOI:10.13203/j.whugis20220792
LAN Jiafen,ZHENG Mao,CHU Xiumin,et al.Ship Position and Pose Sensing with LiDAR[J].Geomatics and Information Science of Wuhan University,2025,50(4):782-791. DOI:10.13203/j.whugis20220792
为精确测量船舶进入升船机船厢的位置、航速、偏航角等关键位姿参数,提出了自适应体素栅格长度计算方法、基于特征点的船舶位置感知方法以及自适应姿态感知方法。以长江三峡5号为例分析了关键参数的影响,并通过蓝箭208号与华嘉8号验证了感知精度。与测速轮测量结果对比表明,船舶纵向位置平均偏差0.810 m,航速平均偏差0.030 m/s,偏航角平均偏差0.27°。所提出的位姿感知方法具有良好的精度,可为船舶进出船厢航行辅助决策系统的开发提供技术支撑。
Objectives
2
To achieve accurate shore-based measurement of the ship's position
speed
yaw angle and other key motion parameters when a ship enters the ship chamber of the ship lift
a ship's position and pose sensing method with light detection and ranging was developed.
Methods
2
To address the specific challenges of point cloud occlusion and noise interference during the process of ships entering a ship lift
a method is developed with the goal of improving the accuracy and efficiency of point cloud data processing. This method utilizes the k-d tree and bounding box algorithms
along with an adaptive voxel grid length calculation method. A feature-based ship position sensing method and an adaptive pose perception method are incorporated
enabling point cloud preprocessing as well as ship position and pose sensing. The system's accuracy is validated using data from the Three Gorges 5 ship
and the impact of key parameters is analyzed. Furthermore
the system's accuracy is also verified using data from Lanjian 208 and Huajia 8 ships.
Results
2
The results show that when the voxel filter constant is 1 000
the neighborhood is 10
and the search angle step is 0.25°
the ship position and pose sensing method has good robustness and smoothness while ensuring the operation efficiency and accuracy of the system. The average deviation of the longitudinal position of the ship is 0.810 m
the average deviation of the speed is 0.030 m/s
and the average deviation of the yaw angle is 0.27°.
Conclusions
2
The proposed position and pose sensing method can meet the requirements of engineering practice
and provide technical support for the development of the navigation decision-making system for ships entering and exiting the ship lift.
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