Design and reliability analysis for underwater control system in OUC-Raman instrument node of seafloor observatory network

OUC-Raman (OUC, Ocean University of China) underwater detection system based on Raman-spectroscopy is designed to operate as instrument node in seafloor cabled observatory network. Considering requirement and standard of seafloor cabled observatory network, this article designs control system for OUC-Raman. It's composed of power management module and control module. Power management module ensures electronic character of OUC-Raman instrument node meeting standard of seafloor cabled observatory network, control module enables shore-based terminal to manipulate underwater system. This control system has redundancy structure to ensure its reliability in seafloor environment. Up to now, OUC-Raman instrument node has received multiple tests with satisfactory results.