Optical tracking velocimetry for real-time sensing of river flows: The application of optical tracking velocimetry in practice

用于河流流量实时传感的光学跟踪测速：光学跟踪测速在实践中的应用

• 批准号: 2281189
• 金额: --
• 依托单位: Newcastle University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2281189
• 关键词: Optical; tracking; velocimetry; real; time

The focus of this study is how OTV can be used in applications to real-world flood management issues. This requires studies into how OTV is best suited to accurate open-channel flow measurements, as well as discovering its limitations for practical use.This is accomplished in several stages including:1. Creating hydraulic models in real time catchments for the use of validation of industrial modelling software.2. Looking at how OTV can be used in the design processes of flood management systems (primarily low-cost solutions such as Natural Flood Management (NFM)).3. How OTV can be used in parallel with flood systems such as sluice gates to mitigate flood risk to urban areas.This research greatly benefits industrial sectors. It provides a low-cost solution to data gathering of rivers, as well as reducing the risk to those in the field collecting data. Unmanned systems can be used to collect river flow video data for use of OTV in high-risk areas such as large-scale flooding. A focus of research will be on the cost-benefit analysis of using OTV; this is due to the benefits that it could potentially have towards NFM projects that usually have very limited budgets. This has the potential to increase the number of small catchments that receive high flood risk but struggle with funding for flood alleviation projects.There are several areas of interest that are currently collecting OTV data; each area has differing benefits to the research such as differing flood conditions, moving flow paths and differing flow rating curves. This therefore increases the utility of desk study for the project viable. Field study will be required to analyse the flood alleviation side of the proposal as this is a new angle that will be taken for OTV. To do this, it is suggested that further research into the catchment of Ireshopeburn, Weardale, is carried out as much of the bank, flow, cross-sectional data, and hydrological models are currently available.To carry out the research, rain gauge stations, pressure transducers and OTV cameras will be set-up on-site to begin for data collection, analysis, and validation. This data will be used to determine the feasibility of building a real-time hydraulic or hydrological model of a catchment to aid in early flood warning systems. This data will also be used to determine whether or not it is feasible to use OTV in the design process of flood management projects. The methodology stated above moves OTV out of a laboratory controlled setting and starts to bring it into more applied areas of industry. Cost-benefit analyses can be used to determine whether OTV is a feasible data-collecting source over traditional acoustic methods of flow measuring.Although much of the focus of this study is looking at using existing algorithms and industrial software to model flow using OTV, training would be beneficial in the maths and the programming of the algorithms. This provides a clear foundation of knowledge and understanding behind why results show what they do in order to reduce the likelihood of acceptance of error.Risk assessments will be required for all field research as there is the danger of working with fast flowing water, working at height while setting up the stations, and some long-distance travelling. There is also the likelihood that private land will be surrounding points of interest along rivers and as secondary rivers are not under the jurisdiction of the EA. Access will first be required to be requested to the landowners.The project is set to be completed within three-years. The first year of study will focus on building the skillset required to analyse and collect the data required, while simultaneously setting up data stations so that there is data to analyse in the second year of study. The second year of study will focus on the practical side of the project, studying data that has been collected and creating models and systems that can use said data to benefit

本研究的重点是如何OTV可以在应用程序中使用到现实世界的洪水管理问题。这需要研究OTV如何最适合于精确的明渠流量测量，以及发现其在实际应用中的局限性。建立真实的时间流域的水力模型，用于工业模拟软件的验证.研究OTV如何用于洪水管理系统的设计过程（主要是低成本解决方案，如自然洪水管理（NFM））。如何将OTV与防洪系统（如水闸）并行使用，以减轻城市地区的洪水风险。这项研究对工业部门有很大的好处。它为河流数据收集提供了一种低成本的解决方案，并降低了现场收集数据的风险。无人系统可用于收集河流流量视频数据，以便在大规模洪水等高风险地区使用OTV。研究的重点将是使用OTV的成本效益分析;这是由于它可能对通常预算非常有限的NFM项目产生潜在的好处。这有可能增加小流域的数量，这些小流域面临高洪水风险，但却难以获得防洪项目的资金。目前有几个感兴趣的领域正在收集OTV数据;每个领域对研究都有不同的好处，例如不同的洪水条件，移动的水流路径和不同的流量额定曲线。因此，这增加了案头研究对项目可行性的效用。将需要进行实地研究，以分析该提案的防洪方面，因为这是OTV将采取的一个新角度。要做到这一点，建议进一步研究到集水区的Irescultureburn，Weardale，进行了银行，流量，横截面数据，水文模型是目前可用的。要进行研究，雨量站，压力传感器和OTV摄像机将设置在现场开始的数据收集，分析和验证。这些数据将用于确定建立集水区实时水力或水文模型的可行性，以帮助建立洪水预警系统。这些数据还将用于确定在洪水管理项目的设计过程中使用OTV是否可行。上述方法将OTV从实验室控制环境中移出，并开始将其带入更多的工业应用领域。成本效益分析可以用来确定OTV是否是一个可行的数据收集源，在传统的声学方法的流量measurement.Although本研究的重点是在使用现有的算法和工业软件来模拟使用OTV流量，培训将有利于在数学和编程的算法。这提供了一个清晰的知识基础，并理解了为什么结果显示了它们的作用，以减少接受错误的可能性。所有的实地研究都需要进行风险评估，因为在快速流动的水中工作，在设置站时在高处工作以及长途旅行都有危险。还有一种可能性是，私人土地将周围的利益点沿着河流和次级河流不属于环境署的管辖范围。首先需要向土地所有者提出进入的要求。该项目将在三年内完成。第一年的学习将侧重于建立分析和收集所需数据所需的技能，同时建立数据站，以便在第二年的学习中有数据可供分析。第二年的研究将集中在项目的实践方面，研究已收集的数据，并创建可以使用所述数据的模型和系统，以使其受益。