Tracking of a Fluorescent Dye in a Freshwater Lake with an Unmanned Surface Vehicle and an Unmanned Aircraft System
Tracking of a Fluorescent Dye in a Freshwater Lake with an Unmanned Surface Vehicle and an Unmanned Aircraft System
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DOI：
10.3390/rs10010081
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发表时间：
2018-01-01
期刊：
影响因子：
5
通讯作者：
Schmale, David G., III
中科院分区：
文献类型：
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作者：
Powers, Craig;Hanlon, Regina;Schmale, David G., III
我们海洋最近发生的灾难性事件，包括“深水地平线”钻井平台爆炸造成的有毒石油泄漏和福岛第一核电站熔毁造成的放射性微粒迅速扩散，突出表明需要新的工具和技术来迅速应对危险物剂。我们对来自自然水生系统的有害物剂的移动和雾化的理解可以扩大并用于预防和跟踪。具有协调的无人驾驶机器人系统的新技术可以更快地识别和减轻湖泊，河流和海洋中的危险物质。在这项研究中，我们释放了一种荧光染料（荧光素）到淡水湖从锚定浮动平台。将荧光计（荧光传感器）安装在无人水面车辆（USV，无人艇）下方，并用于实时检测和跟踪原位释放的染料。一个无人驾驶飞机系统（UAS）被用来可视化染料和指导USV采样不同区域的染料羽流。图像处理工具被用来映射浓度分布的染料羽流从航空图像获得的无人机，这些都与浓度测量收集的传感器机载USV。该项目的成果有可能改变危险物剂的监测战略，使受影响地区能够及时和准确地进行接触评估和作出反应。在对危险物剂的引入作出反应时，快速反应至关重要，以便迅速预测和遏制其扩散。
Recent catastrophic events in our oceans, including the spill of toxic oil from the explosion of the Deepwater Horizon drilling rig and the rapid dispersion of radioactive particulates from the meltdown of the Fukushima Daiichi nuclear plant, underscore the need for new tools and technologies to rapidly respond to hazardous agents. Our understanding of the movement and aerosolization of hazardous agents from natural aquatic systems can be expanded upon and used in prevention and tracking. New technologies with coordinated unmanned robotic systems could lead to faster identification and mitigation of hazardous agents in lakes, rivers, and oceans. In this study, we released a fluorescent dye (fluorescein) into a freshwater lake from an anchored floating platform. A fluorometer (fluorescence sensor) was mounted underneath an unmanned surface vehicle (USV, unmanned boat) and was used to detect and track the released dye in situ in real-time. An unmanned aircraft system (UAS) was used to visualize the dye and direct the USV to sample different areas of the dye plume. Image processing tools were used to map concentration profiles of the dye plume from aerial images acquired from the UAS, and these were associated with concentration measurements collected from the sensors onboard the USV. The results of this project have the potential to transform monitoring strategies for hazardous agents, enabling timely and accurate exposure assessment and response in affected areas. Fast response is essential in reacting to the introduction of hazardous agents, in order to quickly predict and contain their spread.