Underwater splitter based on high-low level digital signal control

Abstract

The invention discloses an underwater splitter based on high-low level digital signal control.The splitter comprises two high voltage vacuum switches, four high voltage diversion diodes, two voltage sampling resistors, a current limit resistor, a controller and a voltage stabilizing diode.According to the underwater splitter based on the high-low level digital signal control, two different voltage classes are utilized for simulating a high level and a low level, namely '1' and '0' of a digital signal, according to a preset communication protocol, a shore-based power supply supplies a series of different consecutive high levels and low levels to an undersea network system to serve as control signals so as to conduct active control over different states to the high voltage vacuum switches in the underwater splitter, and branch and failure isolation of under nodes are completed.Compared with an existing underwater splitter, the splitter has the advantages of being simple in structure, low in cost and high in reliability.

Description

technical field [0001] The invention relates to an underwater splitter controlled based on high and low level digital signals, which belongs to the field of remote power transmission of submarine network systems. Background technique [0002] The submarine network system is an emerging means of marine research and application, and has gradually attracted the attention of marine science enthusiasts due to its in-situ, sustainable, and real-time observation characteristics. Due to the harsh marine environment, the laying and maintenance costs of the submarine network system are relatively high. Remote maintenance and fault isolation technology to deal with network system failures are very important, and underwater splitters that can realize remote control are essential. Different from the power supply network system on land, the establishment of the communication system of the submarine network system depends on the power supply system. When the power supply system of the subm...

AI Technical Summary

Problems solved by technology

The traditional fault isolation method is to establish an independent power supply circuit for the traditional underwater branch, switch the shore-based power supply to the constant current power supply mode, and send control commands to the underwater branch through optical fiber to achieve fault isolation. This method requires the use of power transmission Submarine cables contain two copper conductors, which require high insulation and high production costs

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