The invention provides a ship abnormal behavior monitoring and warning method based on an isolated forest. The ship abnormal behavior monitoring and warning method comprises the following steps: step 1, acquiring a training data set; step 2, performing grid division on the sea surface; step 3, determining grids to which each training sample in the training data set belongs according to the divided grids, and constructing an isolated forest grid by grid; 4, judging whether the position of the to-be-monitored target ship is abnormal or not based on the navigation positioning result, and giving an alarm; 5, searching a grid to which the target ship to be monitored belongs based on a navigation positioning result; and step 6, based on the isolated forest established in the grid, monitoring whether the behavior of the target ship is abnormal and giving an alarm. According to the method, data preprocessing is not needed, and the real-time requirement of ship abnormal behavior monitoring can be met; the method has strong anti-interference capability on noise and abnormal values in the data, and abnormal behaviors of the ship can be rapidly detected; and the abnormal behavior monitoring precision and efficiency of the ship in different scenes are further improved.
本发明提出了一种基于孤立森林的船舶异常行为监测告警方法,包括以下步骤:步骤1,获取训练数据集;步骤2,对海面进行格网划分;步骤3,按照划分的格网确定训练数据集中每个训练样本的所属网格,逐格网构建孤立森林;步骤4,基于导航定位结果判断待监测的目标船舶是否位置异常并告警;步骤5,基于导航定位结果搜索待监测的目标船舶所属格网;步骤6,基于所属格网中建立的孤立森林,监测目标船舶行为是否异常并告警。本发明不需要进行数据预处理,能够满足船舶异常行为监测的实时性需求;对数据中的噪声和异常值有较强的抗干扰能力,可以快速地检测船舶异常行为;进一步提高了船舶在不同场景下异常行为监测精度和效率。
Ship abnormal behavior monitoring and warning method based on isolated forest
一种基于孤立森林的船舶异常行为监测告警方法
2024-04-19
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04B TRANSMISSION , Übertragung / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
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