The invention discloses an inland river unmanned ship route extraction method and system based on AIS data, and the method employs a trajectory division algorithm to classify the AIS data of Yangtze River, so as to plan a round trip route. And performing steering point identification on the divided data by adopting a steering point identification algorithm. And clustering the identified turning points by adopting an HDBSCAN clustering algorithm. And a cluster center is extracted from the clustering cluster to serve as a route point of the air route, an Akima interpolation polynomial is utilized to carry out interpolation on the route point, and finally the air route is generated. The generated route is compared with a real route, the accuracy, effectiveness and applicability of the route generated by the method can be fully explained whether the route is similar to the real route or passes through a ship lock and a narrow water area, and the method can be used for route planning of the unmanned ship in the inland river. According to the method, the inland river shipping safety is improved, and the navigation path of the unmanned ship is optimized.
本发明公开一种基于AIS数据的内河无人船航线提取方法及系统,该方法采用轨迹划分算法将长江的AIS数据进行分类,以便能规划出往返程航线。对划分好的数据采用转向点识别算法进行转向点识别。采用HDBSCAN聚类算法对识别出的转向点聚类。从聚类簇中提取出簇心作为航线的航路点,利用Akima插值多项式对航路点进行插值,最终实现航线的生成。将生成的航线与真实航线进行对比,可以看出无论是在与真实航线的相似性上,还是经过船闸和狭窄水域时,都充分说明了该方法生成的航线的准确性、有效性和适用性,可以用于内河无人船的路线规划。该方法提高了内河航运安全,优化了无人船航行路径。
AIS data-based inland river unmanned ship route extraction method and system
基于AIS数据的内河无人船航线提取方法及系统
2023-12-12
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
Europäisches Patentamt | 2021
|DOAJ | 2024
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