The Study of Ships Ballast Water Replacement Monitoring at Sea Based on MCU

The pollution to the marine environment caused by ballast water discharges has been one of the top four harms that human pollute the oceans. The study of ballast water discharges monitoring has been a very important issue in marine environmental protection and ship safety. This paper studies the impact to vessel stability and strength when ballast water replaced at sea. According to the requirement of ballast water international convention, using Micro Control Unit (MCU) technology, combined with the ship GPS system, we carry out real-time monitoring of location and time of ballast water replacement, each ballast tank level, ship stability and strength data to ensure the ship safety during ballast water replacement. Port authorities consider it as a criterion that PSC inspection whether the ship is in compliance with convention requirements or not. The results provide technical support to ships ballast water replacement monitoring at sea in accordance with ballast water international convention implement.