The invention discloses a GNSS (Global Navigation Satellite System)-based dock entrance area ship route trajectory prediction method, system and equipment, GNSS sites A and B are installed on a ship to be docked along a central axis, A is located in the middle of the ship, and B is located at the tail of the ship; the distance from the head O to the middle A of the ship is recorded as L; the method comprises the following steps: firstly, continuously recording to obtain position time sequences (XA, YA) and (XB, YB) of A and B in a ship running process by utilizing a GNSS device; secondly, taking position data of a point B of a current time point and two time points before a fixed time interval delta t from the position time sequence, and calculating the speed VB of the point B, the spinning speed RB of the point B and the relative spinning speed RA of the point A; predicting ship body positions after future time delta t ', wherein the ship body positions comprise the position of a point B, the position of a point A and the position of a ship head; and finally, predicting ship positions after different delta t ', including a ship middle A position and a ship head O position, and forming a trajectory prediction line. The device is very simple and convenient to use, and the labor intensity of technicians can be reduced.
本发明公开了一种基于GNSS的坞口区域船舶航线轨迹预测方法、系统及设备,拟入坞的船舶上沿着中轴线安装有GNSS站点A和B,其中A在船舶中部,B在船舶尾部;船舶头部O到中部A的距离,记为L;首先利用GNSS装置,在船舶行驶过程中不断记录得到A、B的位置时间序列(XA,YA)和(XB,YB);然后在位置时间序列中取当前时间点和固定时间间隔Δt前的两个时间点的B点位置数据,计算B点的速率VB、B点的自旋速度RB和A点的相对自旋速度RA;接着预测将来时间Δt′后的船体位置,包括B点位置、A点位置和船舶头部位置;最后预测不同Δt′后的船舶位置,包括船舶中部A位置和船舶头部O位置,形成轨迹预测线。本发明使用上非常简便,有利于降低技术人员的劳动强度。
GNSS (Global Navigation Satellite System)-based dock entrance area ship route trajectory prediction method, system and equipment
基于GNSS的坞口区域船舶航线轨迹预测方法、系统及设备
2023-03-07
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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