Hand dredging9/16/2023 With that he prepared the background image overlayed on the map which loads to all connected displays. He prepares the local station offset file, the survey lines over for the vessel to run and loads it in the system, so the operator can easily see where to drive the boat. He prepares the design template satisfying the required clearance, ensures that the proper reference system, geodesy and other required items are chosen correctly. The hydrographer accesses the system on the USV remotely via web browser and sets up the mission. The architecture of the system has been designed to facilitate the remote access and perform advanced tasks by the hydrographer while the operator uses the hand-held device to conduct the survey. The essential feature of the presented solution is that it allows a concurrent operation of the remotely located hydrographer and the local operator conducting the survey. These two are connected via a dedicated software which seamlessly combines these two functions into one consolidated efficient solution. Then the survey execution is done by a skipper or USV operator at the actual job site. The survey “design” is done by a hydrographer or survey manager operating from the remote location setting up the essential parts of the survey. In this paper, we present a paradigm change in managing the essential hydrographic surveyor resources by utilizing the technology to divide the dredging hydrographic survey into two parts, design and execution of the survey. At the same time the companies started to invest in USVs (Unmanned Surface Vehicles) or small SV (surface vehicles) to improve the mobilization time and reduce the overall “footprint” of the operation. The last couple of years exacerbated the shortage of resources to conduct hydrographic surveys for dredging industry.
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