A submarine observation network junction box

Abstract

The invention discloses a connection box for a seabed observation network, comprising: a connection expansion interface, a monitoring module, an interface control module and a data exchange module; Receive shore base station instructions, and perform firmware upgrade, remote debugging, function configuration, and reset and restart on the data exchange module, interface control module, and cascaded junction box according to the instructions; it is also used to receive and analyze the clock protocol sent by the shore base station, Provide time service for each observation equipment; the interface control module is used to receive control instructions from the shore base station, to realize the control of the equipment interface and the connection expansion interface, and to send the collected status information of the equipment interface and the connection expansion interface to the data center. Exchange module; the data exchange module is used to summarize the received data of the observation equipment, the data of the cascaded junction box and the status information of each interface, and upload it from the main base station to the shore base station.

Description

technical field [0001] The invention relates to the technical field of seabed observation network, in particular to a junction box of seabed observation network. Background technique [0002] The submarine observation network is an emerging ocean observation technology. It is mainly composed of shore base stations, photoelectric composite submarine cables (referred to as "submarine cables"), repeaters, submarine main base stations, submarine junction boxes, and observation equipment. The base station, submarine cable, repeater, submarine main base station, etc. constitute the backbone network of the submarine observation network, the submarine junction box is the secondary network of the submarine observation network, and a large number of observation equipment constitute the observation network of the submarine observation network (p. level three). The working mode of the submarine observation network is as follows: the observation equipment sends the collected scientific ...

AI Technical Summary

Problems solved by technology

[0005] 1. The shore base station cannot monitor the status of the key modules inside the junction box. After the junction box fails, it cannot locate the fault, and it cannot be repaired online, and it cannot remotely upgrade important firmware updates. Therefore, as long as the key modules inside the junction box A problem will render the breakout box inoperable

For example, if the switch responsible for the communication function between the junction box and the shore base station has theoretically recoverable problems such as firmware reading failure and configuration file error during startup, the junction box will completely lose the communication connection with the shore base station, and the shore-based operation The maintenance personnel cannot determine the cause of the internal failure of the junction box (whether it is hardware damage or software failure), and can only rely on the post-operation and maintenance ship to salvage the junction box and disassemble it for fault finding and maintenance. The cost of time and money is huge ; 2. It is impossible to provide accurate clock signals for observation equipment, including seabed seismographs and acoustic equipment, which have high requirements for time accuracy, and the junction box needs to have the ability to provide high-precision clocks; it cannot solve the problem of most serial ports accessing observation equipment itself. With time synchronization function, it only depends on the problem of adding time stamps by the shore-based equipment after the data is transmitted to the shore base station, which will lead to insufficient data time accuracy; 3. High customization requirements for the junction box, equipment interface voltage and communication protocol are fixed, Unable to adapt to different types of observation equipment; 4. Poor expansion ability, non-modular design, unable to conveniently expand the connection port, unable to realize the cascade connection between connection boxes and connection boxes, and unable to meet the access needs of a large number of observation equipment

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