Technologies of Junction Box for Seafloor Observation Network
Technologies of Junction Box for Seafloor Observation Network
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DOI：
10.3901/jme.2015.10.172
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发表时间：
2015
影响因子：
--
通讯作者：
Yang Canju
中科院分区：
文献类型：
--
作者：
Yang Canju
利用海底电缆和接线盒将部署在海底或水体中的科学仪器连接成网络，并与陆地互联网和电网相结合，形成海底观测网络，实现长期、连续、实时、原位的海洋观测，已成为海洋科学研究的重要平台。研究并提出了配电箱设计的关键技术，包括电能传输与转换、高带宽通信与精确定时、电源故障检测与隔离、密封与结构设计等。基于所研究的技术，制作了部分接线盒样机。成功地进行了水池和高压模拟试验、浅海运行试验和深海运行试验，验证了相关技术：基于直流电源变换的电源分配和管理方法可应用于海底观测网，光缆干线点对点通信和多级树型通信结构可满足海底观测网的要求;通过对单个端口的过电压、过电流和接地故障进行检测和隔离，提高了系统的可靠性，模块化设计和可拆卸结构降低了成本，便于维护。
By using submarine cable and junction box to wire the science instruments deployed on the seafloor or in the water column into a network and combining with the terrestrial Internet and power gird to form the seafloor observation network that enables long-term, continual, real-time and in-situ ocean observing has become an important platform for ocean science research. The key technologies for designing junction box are studied and presented, including power transmission and conversion; high bandwidth communication and precise timing; power fault detection and isolation; and sealing and construction design. Based on the studied technologies, some prototypes of the junction box are built. Tests like water tank and high pressure simulative tests, shallow sea operation trial, and deep sea operation trial are carried out successfully and validated the relative technologies: Power distribution and management method based on DC power conversion can be applied on seafloor observation network; point to point communication on trunk cable via optical fibers and multi-stage tree communication structure could satisfy its requirement; detecting and isolating over-voltage, over-current and ground faults on individual port can enhance the reliability of the system; and modularized design and detachable structure could lower the cost and make it maintainable.