摘要
为了避免船舶撞桥灾难性事故的发生,利用远红外热成像摄像机可接收船体自身热辐射的能量、具有"全天候"工作能力的特点,研究桥梁防船撞远红外热成像预警技术,并进一步,将该技术应用于平潭海峡大桥。基于对单台远红外热成像摄像机对远距离目标定位精度的分析结果,提出采用多(双)台远红外热成像摄像机对远处目标船舶进行交叉成像的坐标定位技术。定量分析结果表明,采用双台远红外热成像摄像机能大幅度(数量级上)提高对远处目标的定位精度。
To protect bridge from vessel collision,a warning technology based on characteristic of far-infrared thermal imaging is studied.A far-infrared thermal imaging video camera is very sensitive to thermal radiation from detected object,so that it works well and is independent of the light strength and the weather condition.The developed warning technology in this paper is used in Pingtan Strait Bridge with 6-far-infrared thermal imaging video cameras to protect it from ship collision.The formulation for the system of multi-video-cameras to calculate object coordinates has been set up.Based on theoretical analysis,it is found that to use two video cameras to determine the ship location and its velocity is of much higher measurement precision than to use a single video camera to do it.
出处
《科学技术与工程》
2011年第35期8800-8804,8819,共6页
Science Technology and Engineering
基金
自然科学基金(10872101)
福建省交通厅科研项目(201118)
浙江省科技厅科研项目(2009C13008)资助
关键词
桥梁防船撞
预警技术
远红外热成像
protect bridge from ship collision warning technology far-infrared thermal imaging
