The invention discloses a state constraint-based ship AIS trajectory extrapolation method. The method comprises the following steps of S1, establishing a ship AIS trajectory extrapolation model; s2, acquiring basic information of a ship and AIS information of the ship; s3, constraining the AIS trajectory of the ship according to the basic information of the ship, and setting a constraint range of extrapolation of the AIS trajectory of the ship; and S4, estimating the position, speed, acceleration, steering rate and steering acceleration of the ship at the future moment through a ship AIS trajectory extrapolation model according to the AIS information of the ship and the constraint range of the ship AIS trajectory extrapolation. Based on the rule that the motion acceleration of the ship is automatically attenuated along with time, historical motion parameters of the ship are checked, inertia and maneuverability of the ship are estimated and ship motion trail estimation is carried out by utilizing static information of the ship, the type, size and the like of the ship, historical route information and encounter manipulation rules of the ship, so that the ship motion trail is more accurately fitted.

    本发明公开了一种基于状态约束的船舶AIS轨迹外推方法,包括如下步骤:S1:建立船舶AIS轨迹外推模型;S2:获取船舶的基础信息以及船舶的AIS信息;S3:根据船舶的基础信息对船舶AIS轨迹进行约束,设定船舶AIS轨迹外推的约束范围;S4:根据船舶的AIS信息以及船舶AIS轨迹外推的约束范围,通过船舶AIS轨迹外推模型估算未来时刻船舶的位置、速度、加速度、转向率和转向加速度。本发明基于船舶的运动加速度随时间自动衰减规则,利用船舶静态信息,船舶类型、大小等,航路历史信息,船舶会遇操纵规则,检验船舶历史运动参数,估计船舶的惯性和操纵性,进行船舶运动轨迹估算,更准确的拟合船舶运动轨迹。


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    Title :

    Ship AIS trajectory extrapolation method based on state constraint


    Additional title:

    基于状态约束的船舶AIS轨迹外推方法


    Contributors:
    PENG SHULIN (author) / YUAN MIN (author)

    Publication date :

    2022-12-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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