Graduate School of Engineering, Hiroshima University, Hiroshima 739-8527, Japan.
Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima 739-8527, Japan.
Sensors (Basel). 2021 Oct 28;21(21):7169. doi: 10.3390/s21217169.
The establishment of maritime safety and security is an important concern. Ship position prediction for maritime situational awareness (MSA), as a critical aspect of maritime safety and security, requires a longer time interval than collision avoidance and maritime traffic monitoring. However, previous studies focused mainly on shorter time-interval predictions ranging from 30 min to 10 h. A longer time-interval ship position prediction is required not only for MSA, but also for efficient allocation of ships by shipping companies in accordance with global freight demand. This study used an end-to-end tracking method that inputs the previous position of a vessel to a trained deep learning model to predict its next position with an average 24-h interval. An AIS dataset with a long-time-interval distribution in a nine-year timespan for capesize bulk carriers worldwide was used. In the first experiment, a deep learning model of the Indian Ocean was examined. Subsequently, the model performance was compared for six different oceans and six primary maritime chokepoints to investigate the influence of each area. In the third experiment, a sample location within the Malacca Strait area was selected, and the number of ships was counted daily. The results indicate that the ship position can be predicted accurately with an average time interval of 24 h using deep learning systems with AIS data.
建立海上安全和安保是一个重要的关注点。船舶位置预测对于海上态势感知(MSA),作为海上安全和安保的一个关键方面,需要比避碰和海上交通监测更长的时间间隔。然而,以前的研究主要集中在较短的时间间隔预测上,范围从 30 分钟到 10 小时。不仅 MSA 需要更长的时间间隔船舶位置预测,而且航运公司还需要根据全球货运需求有效地分配船舶。本研究使用端到端跟踪方法,将船舶的先前位置输入到经过训练的深度学习模型中,以预测其下一个位置,平均时间间隔为 24 小时。使用了一个具有全球范围内卡佩斯型散货船九年时间跨度的长时间间隔分布的 AIS 数据集。在第一个实验中,研究了印度洋的深度学习模型。随后,比较了六个不同海洋和六个主要海上咽喉点的模型性能,以调查每个区域的影响。在第三个实验中,选择了马六甲海峡区域内的一个样本位置,并每天统计船舶数量。结果表明,使用 AIS 数据的深度学习系统可以准确地预测船舶位置,平均时间间隔为 24 小时。