Underwater main base station of seabed observational network

Abstract

The invention relates to an underwater main base station of a seabed observational network. The underwater main base station comprises an anti-dragging network structure and a function unit. The anti-dragging network structure is of an integrated ellipsoidal face structure and is formed by connecting a protective cover assembly, a supporting framework assembly, a bottom supporting assembly and a bottom sealing assembly through bolts and nuts. The function unit is installed in the anti-dragging network structure and formed by connecting a submarine cable terminal assembly, a power unit assembly, a communication unit assembly, a submarine cable connection cathode assembly and a wet pluggable connector assembly through watertight connectors and watertight cables. The underwater main base station is connected to a bank base station through a standard single-electrode photoelectric composite communication submarine cable comprising a seabed relay and a seabed splitter. Negative high voltage single-electrode direct-current transmission with seawater as a current loop is adopted for communication with a wavelength division multiplexing optical fiber with a relay, and the reliability of the seabed observational network is improved through submarine cable segmental relay protection. The underwater main base station is simple in structure, compact in size, stable in arrangement and capable of reducing external force damage risks and reducing sediment deposition and further has the beneficial effects of being high in transmission efficiency, large in communication capacity and long in transmission distance.

Description

technical field [0001] The invention belongs to the technical field of seabed observation, and relates to an underwater main base station of a seabed observation network, in particular to a negative high-voltage unipolar direct current transmission with an integral ellipsoidal surface anti-trawling structure, segmental protection and a wavelength division multiplexer with a relay. The underwater main base station of the submarine observation network using optical fiber communication. Background technique [0002] The ocean accounts for more than 70% of the earth's surface, greatly affects the global environment and climate change, and contains huge energy and resources. It is the basis for human sustainable development. Therefore, understanding its operating mechanism is extremely important for the development of human civilization. To understand the ocean, it is necessary to carry out long-term real-time observation of the ocean, but its huge volume has seriously hindered h...

AI Technical Summary

Problems solved by technology

This field is still in its infancy at home and abroad, and the underwater main base station is the core networking equipment of the submarine observation network. There are the following disadvantages in the existing technology: the split trapezoidal anti-off-network structure is adopted, the structure is complex, the volume is large and the cost is high. Moreover, the long-term deployment stability of the seabed is poor, and it is easy to be damaged by external forces such as fishing trawls; the use of bipolar power supply or constant current power supply leads to large power loss, low power transmission efficiency and poor power supply capacity of the submarine observation network on the submarine cable, and in the submarine cable In the case of a ground fault, it is easy to cause the entire system to collapse, so the operating reliability is low; using non-relay single-wavelength optical fiber communication, all underwater main base stations share the same wavelength to transmit data, so the transmission distance is short, the communication capacity is small and the data low transfer rate

Images