破冰船护航条件下的船舶安全域划分方法  

A Classification Method of Ship Safety Area in Terms of Icebreaker Escort

作　　者：张伟斌 邓雨亭 邹紫瑶 冯姚瑶 ZHANG Weibin;DENG Yuting;ZOU Ziyao;FENG Yaoyao(School of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学电子工程与光电技术学院,南京210094

出　　处：《交通信息与安全》2020年第3期99-104,共6页Journal of Transport Information and Safety

基　　金：国家重点研究开发计划项目(2018YFB1601100/2018YFB1601101);国家自然科学基金项目(71971116)资助。

摘　　要：在高纬度地区的冬季,由于海冰的原因船舶航行变得较为困难,往往无法自主航行,需要破冰船进行护航和引导。在破冰船护航的狭窄冰道中,破冰船及跟随船之间存在一定的碰撞风险。因而,探究破冰船与跟随船之间安全距离与相对速度之间的相互制约关系,对破冰船护航下的船舶安全域进行划分是研究的重点。有别于传统开放水域安全模型,该研究对冰区船舶航行的最小静态安全距离进行了定义,并结合实际案例进行了安全域的分析。并将高斯混合分布的EM聚类算法应用于适合冰区护航中不同航行状态下的船舶安全域的划分。研究结果表明通过对船舶速度和安全距离数据的研究能够较好的区分出船舶的安全域,对破冰船护航下的安全航行操作提供了参考。In winter at high latitudes,ship navigation becomes more difficult due to sea ice,even unable to navigate autonomously,thus icebreakers are required to escort and guide.There is a risk of collision between the icebreaker and the following ship in narrow ice path where the icebreaker escorts.Therefore,how to use the existing data to explore the mutual restriction between the safety distance and the relative speed between the icebreaker and the following ship,so as to divide the ship safety area under the condition of icebreaker escort is focused in this research.Different from the traditional open sear safety model,the minimum static safety distance for ships sailing in the ice area is defined,and the safety area is analyzed in combination with actual cases.The EM clustering algorithm with Gaussian-mixture distribution is applied to the division of ship safety domains under different sailing conditions in ice escort.The results show that through the studies of ship speed and safety distance data,the safety domain of the ship can be better distinguished,which provides a reference for safe navigation operations under the escort of icebreakers.

关 键 词：航运安全 破冰船护航 安全域划分 EM聚类算法 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]