Ultra compact bathymetric measurement system chain for capture of shallow waters

沃茨是生命线，但同时也带来危险。为了防止这些危险，需要一个最新和全面的数据库。特别是，了解河岸附近水道的地形和底土，可以进行可靠的洪水模拟。目前，回声测深仪或机载测深传感器用于沃茨的几何记录，其可用于精确捕获大的沃茨。然而，这些传感器在小而浅的沃茨中失效。市场上有一种基于无人机的测深系统，但它只能在严格的规定下飞行。因此，在ACQUA-3D项目中，我们正在开发一种小型、紧凑、基于无人机的测深测量系统，并结合综合评估方法。多传感器测量系统将由一个基于激光的测量单元组成，该测量单元由两个脉冲激光器（包括相应的接收器单元）和一个具有RGB、Costal Blue和NIR通道的多光谱相机系统组成。这允许捕获水面以及水底。测量结果的评估与自动化评估算法开发的框架内的DFG项目。整个工艺链的评估和优化由工业合作伙伴EOMAP和GEO集团确保。除了丰富的经验外，工业合作伙伴还可以生成广泛的参考数据集。

Waters are lifelines, but at the same time they also pose dangers. In order to prevent these dangers, an up-to-date and comprehensive database is required. In particular, knowledge of the topography of the watercourse near the banks and of the subsoil enables reliable flood simulations. Currently, echosounders or airborne bathymetry sensors are used for the geometric recording of waters, which can be used to precisely capture large waters. However, these sensors fail in small, shallow waters. It exists a drone-based bathymetry system on the market, but it can only be flown under strict regulations. Therefore, within the ACQUA-3D project, we are developing a small, compact, drone-based bathymetry measurement system in combination with comprehensive evaluation methods. The multi-sensor measuring system will be built up of a laser-based measuring unit consisting of two pulsed lasers including the corresponding receiver units and a multi-spectral camera system with RGB, Costal Blue and NIR channels. This allows to capture the water surface as well as the water bottom. The measurements are evaluated with the automated evaluation algorithms developed within the framework of the preceding DFG project. The evaluation and optimisation of the entire process chain is ensured by the industrial partners EOMAP and GEO Group. In addition to a wealth of experience, the industrial partners can generate extensive reference data sets.