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When ships of various types and sizes enter and depart from ports, the risk of collision between ships is high. In particular, collisions between large ships can lead to major accidents. In order to avoid crashes, it is important to quickly identify hazardous situations in advance. For this purpose, video surveillance, radar, automatic identification system (AIS), CCTV, etc. are being used. However, there is a limit to seeing the entire port as CCTV is fixedly installed. Monitoring using drones is also difficult due to limited batteries. As a way to overcome this, the use of An unmanned aerial vehicle (UAV) such as helikite has been proposed.
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