一种桥梁防撞系统中的虚拟航道构建与船舶偏航检测方法

Construction of Virtual Channel and Ship Yaw Detection Method in Bridge Collision Avoidance System

提出一种桥梁防撞系统中的虚拟航道构建与船舶偏航检测方法。首先在桥梁通航孔安装摄像机,采集航道图像视频信息,然后对采集的视频信息进行处理,最后在视频图像上显示出虚拟航道,通过计算船舶到虚拟航道的距离判断轮船是否偏航。对有航标和没有航标情况用不同的方法构建虚拟航道,对不同的河道地形构建出适应实际地形的直线型、C型和S型虚拟航道,能够准确绕开障碍物,保证船舶航行安全。实验表明该方法具有较高的正确率,对提高桥梁和船舶航行安全具有重要意义。

The construction of virtual channel and the method of ship yaw detection are proposed in this paper.First,Cameras are installed in the bridge navigation hole to collect the aerial image information of the navigation channel.Then the video information is processed.Finally,the virtual channel is shown on the video image.By calculating the distance of the ship to the virtual waterway,it is possible to judge whether the ship has deviation and the danger of hitting the pier.This method can be used to construct the virtual channel in different ways.For different river topography,it is possible to construct a line that adapts to the actual terrain,c-type and s-type virtual channel,which can be used to avoid obstacles accurately and guarantee the navigation safety of ships.Experiments show that the method has high accuracy in specific application,which is of great significance for improving navigation safety of bridges and ships.