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A molecular dynamics approach for modeling the geographical distribution of ship collision risk

机译：一种模拟船舶碰撞风险地理分布的分子动力学方法

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摘要

Collision is one of the major accidents that put the safety of navigation at risk all the time. The effective monitoring on the geographical distribution of collision risk is conducive to reducing the chance of collision accidents. In this paper, a novel model intended for identifying the geographical distribution of collision risk in water area was proposed on the basis of radial distribution function in molecular dynamics. In this model, ship traffic and ships were converted into a molecular system. After being obtained using an analytical method, collision risk was generalized as distance to model the collision risk by radial distribution function. Finally, a space interpolation technique was applied to visualize the geographical distribution of collision risk. To validate the proposed model, the AIS data contained in Bohai Strait was used to conduct experiment.According to the experimental results, the map as obtained by the proposed model is capable to identify the geographical distribution of collision risk, and is advantageous over the traditional method in the instantaneity and accuracy of identification. Moreover, the proposed model can assist surveillance operators in the monitoring of collision risk and the improvement of work efficiency, thus enhancing the navigational safety in the water area.
机译：碰撞是将导航风险导航安全的主要事故之一。有效监测碰撞风险的地理分布有利于减少碰撞事故的机会。本文在分子动力学中的径向分布函数的基础上提出了一种用于确定水域碰撞风险地理分布的新型模型。在该模型中，船舶流量和船舶被转换为分子系统。在使用分析方法获得之后，碰撞风险被广泛地推广到径向分布函数模拟碰撞风险的距离。最后，应用了空间插值技术以可视化碰撞风险的地理分布。为了验证拟议的模型，渤海海峡中包含的AIS数据用于进行实验。根据实验结果，由所提出的模型获得的地图能够识别碰撞风险的地理分布，并且对传统有利的在瞬时性和识别准确度的方法。此外，所提出的模型可以帮助监测运营商监测碰撞风险和提高工作效率，从而提高水域的导航安全性。

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