Design of underwater video attached to buoy for observing shallow water substrate

摘要

Knowledge of shallow water substrate is very important for protection and management of coastal ecosystem. Traditional methods for observing shallow water substrate was by sending diver to photography and recorded with eye, which was laborious and money taking. In order to obtain the easier way to study the shallow water substrate, an underwater video system was designed. Underwater video sensor, optical sensor, sonar sensor, tiltometer, GPS system, and ascending and descending system were all attached to the buoy system, and data was gathered and processed by the computer on the ship. The obtained data could be used for analyzing substrate type, activity of benthos and ground truth data for satellite remote sensing.