Submarine cable real-time monitoring system and submarine cable real-time monitoring method

A real-time monitoring system and submarine cable technology, applied in the field of measurement, can solve problems such as the inability to realize the temperature and strain of submarine cables, and achieve the effects of reducing monitoring costs, reducing the rate of false alarms and false positives, and improving utilization.

Active Publication Date: 2014-01-15
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0006] Aiming at the problem that the traditional submarine cable monitoring system mentioned in the background technology cannot realize the online monitoring of temp

Method used

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Embodiment Construction

[0028] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0029] figure 1 It is a connection diagram for online monitoring of submarine cable status information provided by the present invention using the submarine cable real-time monitoring system; wherein, a is the measurement connection diagram of the photoelectric composite submarine cable, and the submarine cable real-time monitoring system 1 is directly combined with the photoelectric composite submarine cable 2 The single-mode optical fiber 3 is connected; b is the connection diagram of winding the communication optical cable on the ordinary submarine cable for measurement, and the submarine cable real-time monitoring system 1 is connected with the single-mode optical fiber 5 in the communication optical cable.

[003...

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Abstract

The invention discloses a submarine cable real-time monitoring system and a submarine cable real-time monitoring method in the technical field of measurement. According to the technical scheme, the submarine cable real-time monitoring system is designed, the temperature and the strain of a submarine cable in the operation process are achieved by detecting the polarization state and the phase of backward Rayleigh scattering light, and therefore real-time monitoring of state information of external damage, insulation degradation, electric leakage, ground faults and the like is achieved. The utilization rate of equipment is improved, the monitoring cost is reduced, and in addition, the missing report rate and the false judging rate are greatly reduced. Three-dimensional, large-range, whole-circuit and networked real-time monitoring of the submarine cable can be achieved, and the submarine cable real-time monitoring system and the submarine cable real-time monitoring method are of great significance in safe and stable operation of the submarine cable.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a real-time monitoring system and method for a submarine cable. Background technique [0002] my country has a coastline of 32,000 kilometers, more than 6,500 large and small islands, and a territorial sea area of ​​about 4.73 million square kilometers. There are many offshore working platforms. Submarine cables are used in remote power supply, high-voltage power transmission, power communication, signal transmission, and guarantee the production and life of island residents. It plays a key role in the normal operation of offshore working platforms. [0003] Due to seawater erosion, erosion and other factors, it is easy to cause the insulation aging and water resistance of submarine cables to deteriorate, causing leakage currents in submarine cables, which will cause the temperature of submarine cables to rise at the fault point, and cause greater faults. , For ex...

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Application Information

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IPC IPC(8): G01R31/02G01K11/32G01B11/16G01K11/3206
Inventor 赵丽娟李永倩徐志钮翟丽娜
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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