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Assessment method for latent anchor damage caused by ships to submarine cables, and control system

A technology for ships and submarine cables, applied in the field of potential anchor damage assessment methods and management and control systems, to achieve the effect of widening dimensions and facilitating formulation and implementation

Inactive Publication Date: 2015-12-23
GUANGZHOU BUREAU CSG EHV POWER TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. There is no scientific comprehensive algorithm that effectively integrates the information of each subsystem as a risk factor, conducts comprehensive risk assessment and decision-making, and assists submarine cable operation and maintenance personnel in comprehensive processing

Method used

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  • Assessment method for latent anchor damage caused by ships to submarine cables, and control system
  • Assessment method for latent anchor damage caused by ships to submarine cables, and control system
  • Assessment method for latent anchor damage caused by ships to submarine cables, and control system

Examples

Experimental program
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Effect test

Embodiment

[0046] Such as Figure 1-3 As shown, a method for assessing the potential anchor damage of a ship to a submarine cable, including:

[0047] Step A, identifying ships entering the preset monitoring range, which includes the protection area of ​​the submarine cable and the surrounding warning area;

[0048] Step B, monitoring the distance from the ship to the submarine cable and the speed of the ship, and calculating several speed variations of the ship when navigating in the warning area and the protection area;

[0049] Step C, determining the basic risk level of the ship to the submarine cable according to the distance, ship speed and speed variation.

[0050] Specifically, step C may include:

[0051] S10, if the obtained distance is greater than the boundary value of the warning area, it is determined that the ship has no potential anchor damage to the submarine cable;

[0052] S20, if the obtained distance is less than or equal to the boundary value of the warning area ...

example

[0070] Example: The cargo ship named "MINHANG6" (MMSI: 123456789), within 1.8 nautical miles to 700 meters from the west side of phase A of the submarine cable, from 07:05 to 07:08, the speed of the ship dropped rapidly from 8 knots to 3 knots, From 07:08 to 07:15, the speed of the ship slowly decreased from 3 knots to 0.5 knots, and from 07:15 to 07:23, the speed of the ship decreased from 0.5 knots to 0 knots.

[0071] 1. The system judges that "MINHANG6" has entered the ship identification area (within 5 nautical miles on both sides of the submarine cable), and the system starts to monitor and identify each data element;

[0072] 2. Determine whether the ship is whitelisted. (That is, to determine whether the ship has a history of breaking down in the submarine cable monitoring area before, or whether the ship is a non-threatening friendly ship that has reported in advance). After judging that it is not a white list, go to step 3.

[0073] 3. After judging, the relative p...

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Abstract

The invention provides an assessment method for latent anchor damage caused by ships to submarine cables. The method comprises the following steps: identifying ships entering a preset monitoring scope, wherein the monitoring scope comprises a submarine cable protection area and a peripheral guarding area; monitoring the distances from the ships to the submarines and ship speeds, and calculating a plurality of speed variances when the ships navigate in the guarding area and the protection area; and according to the distances, the ship speeds and the speed variances, determining the base risk grades of the ships for the submarine cables. The assessment method provided by the invention combines the relative position relations between the ships and the submarine cables, the ship speeds and the ship speed variances together for assessing the base risk grades of the ships for the submarine cables, such that the dimension of risk identification and assessment is widened, and the ship speed variances and change trends should be key factors in predetermining ship anchoring risks; and the ship anchoring risks and submarine damage risks caused by ship anchoring are graded according to size so that formulation and implementation of risk control and emergency control strategies are facilitated.

Description

technical field [0001] The invention relates to the technical field of submarine cable monitoring, in particular to an evaluation method and a management and control system for potential anchor damage of a ship to a submarine cable. Background technique [0002] Submarine cables refer to cables or optical cables laid in the ocean. At present, submarine cables play an increasingly important role in the national economy and people's livelihood, and ship anchoring is the number one risk of submarine cables being damaged by external forces. Preventing ships from anchoring in the submarine cable routing area is the The top priority of submarine cable operation and maintenance work. [0003] Among them, the 500kV submarine cable interconnection project between Hainan Power Grid and the main network of China Southern Power Grid is my country's first ultra-high voltage, long-distance, large-capacity cross-sea power interconnection project. The history of the island of Hainan Electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 杜涛宇高东明郭强张维佳赵刚罗立陆岩蒋道宇周京何才豪陈航伟岑贞锦黄小卫
Owner GUANGZHOU BUREAU CSG EHV POWER TRANSMISSION
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