| Summary: | Boat / ship has been conventionally used as a vehicle for bathymetry survey using echosounder. One of the main factors that influence the effectiveness of the implementation of bathymetry survey using a boat / ship is in the flexibility of doing the survey along and across the predefined survey lanes. In the narrow waters (small dam sluice gates, settling pond area of open pit and so on), this activities are always constrained. This study aims to build ROV prototype that can be used as an alternative vehicle for bathymetric surveys in narrow waters. ROV planned to be used in this study is a mini boat controlled using a remote control. By using a smaller vehicle it is expected that the survey will be more flexible. This study also aimed to produce an application interface that can be used by surveyors to control ROV during the survei execution along and across the predefined survey lane. The interface is planned to provide visual guidance to the operator during the survey excution. Based on the result of the work it can be concluded that the ROV can be used for bathymetric measurements with the spacing between survey lanes of below 7,5m. The time needed to make the shift between lanes is below 30 seconds. ROV still requires further development due to the slow movement during the survey. Application interfaces generated in this study is called VisualLine with 1.01Mb size and can run on Windows operating systems. This application can display the position of the ROV, survey lanes and the distance between the ROV position to the closest survey lane. In general, the application runs fine due to the the absence of rogram error during the simulations. From the simulation results, the application VisualLine can provide the required guidance on two different methods that are predefined survey lane and postdefined survey lane.
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