The invention provides a ship track monitoring method and system, and the method comprises the steps: collecting the historical AIS data of a ship in a certain time period, obtaining a ship track point set according to the longitude and latitude information of the ship in the historical AIS data, taking the starting time corresponding to the track point of the ship which travels first in the track point set as the time variable of the current moment, and obtaining the time variable of the current moment; calculating the distance between each track point and the previous point and the position of the ship at a certain moment in the time period, changing the time value of the time variable at the current moment to obtain the position of the ship at any moment, and forming a historical track of the ship according to the position of the ship at any historical moment. And then, calculating a ship prediction track by adopting a path planning algorithm, judging whether a collision risk exists in the historical track and the ship prediction track or not through a ship collision recognition algorithm, and displaying the collision risk condition, so that monitoring of the ship historical track and the ship prediction track is realized, and the accident risk occurrence probability can be effectively reduced.
本发明提供了一种船舶轨迹监控方法及系统,该方法先采集某一时间段内的船舶历史AIS数据,根据历史AIS数据中的船舶经纬度信息得到船舶轨迹点集合,再将轨迹点集合中最先行驶的船舶轨迹点所对应的开始时间作为当前时刻时间变量,并计算出各轨迹点与上一点之间的距离以及该时间段内某一时刻船舶所在的位置,通过改变当前时刻时间变量的时间值,进而得到任意时刻船舶所在的位置,根据历史任意时刻船舶所在的位置形成船舶历史轨迹,然后采用路径规划算法计算出船舶预测轨迹,再通过船舶碰撞识别算法判断出历史轨迹和船舶预测轨迹中是否有碰撞风险,并将碰撞风险情况进行展示,实现船舶历史轨迹和预测轨迹的监控,能够有效降低事故风险发生概率。
Ship trajectory monitoring method and system
一种船舶轨迹监控方法及系统
2024-03-08
Patent
Electronic Resource
Chinese
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