Adaptive Power Supply Switching by Auto-defined Multiplexer in an Underwater Junction Box for the Marine Observatory

Marine and meteorological disasters are the real challenges that add the risks and costs on maritime engineering. More demands of marine observatory are increasing with the development of offshore wind farm and ocean energy. For issues of underwater environmental monitoring, the general sensors are included ADCP, CTD, wave gauge, hydrophone, seismometer, scouring detector, camera, and so on, all of which are considered as very utility monitoring. However, the marine observatory needs underwater junction boxes to integrate with sensors connection and power supply. This paper presents a technique on the adaptive power supply to be realizable in a junction box. This junction box is designed for connection with the environmental monitoring tower (met mast) in the offshore wind farm, and the deploy depths are over 30 meters.