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A Method of Ship Trajectory Mining Analysis and Monitoring Based on Specific Regions

A technology of ship trajectory and specific area, applied in the field of ship trajectory mining analysis and monitoring based on specific area, can solve the problem of not taking into account the overall shape of the space target, and achieve the effect of reducing data storage space

Active Publication Date: 2018-01-26
HUAZHONG NORMAL UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of spatial distance measurement, the classic Euclidean distance is only suitable for point targets, while the simple extended nearest, farthest and centroid distances do not take into account the overall shape, position distribution and other characteristics of the spatial target, which has certain limitations

Method used

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  • A Method of Ship Trajectory Mining Analysis and Monitoring Based on Specific Regions
  • A Method of Ship Trajectory Mining Analysis and Monitoring Based on Specific Regions

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Embodiment Construction

[0043] The implementation of the present invention adopts the PostgreSQL open-source database supporting geographic space data storage and operation and the front-end open-source Web GIS development class library package OpenLayers supporting Ajax, covering the trajectory data processing subsystem, ship information query subsystem, trajectory analysis monitoring subsystem and Background configuration management subsystem. Such as figure 2 Shown, the specific implementation steps of the inventive method are as follows:

[0044] Step 1, analyze the trajectory data and establish a trajectory database.

[0045] According to the position report message sent by the AIS system, the AIS track data is analyzed and stored in the ship information table and the original AIS information table.

[0046] Step 2, trajectory data preprocessing parameter configuration, including setting the speed change rate and heading change rate thresholds, which are set to 10% here.

[0047] Step 3, the...

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Abstract

The present invention relates to the field of ship trajectory mining, analysis and monitoring in ocean transportation, and provides a ship trajectory mining, analysis and monitoring method based on a specific region. The method comprises: mining, clustering and analyzing trajectories of ships in a specific region, extracting a ship mode trajectory in the specific region, and using the ship mode trajectory as an important reference for monitoring and anomaly analysis on the ships in the specific region, thereby implementing regional monitoring and anomaly analysis on the ships.

Description

technical field [0001] The invention relates to the field of ship track mining analysis and monitoring in ocean transportation, in particular to a ship track mining analysis and monitoring method based on a specific area. Background technique [0002] In recent years, with the rapid development of my country's national economy and the continuous growth of domestic and foreign trade, my country's maritime traffic volume has also shown a large-scale growth trend, and ship traffic has become increasingly busy. At the same time, the rapid development of computer technology, GPS satellite positioning technology, modern communication technology, electronic information technology and maritime supervision sensor technology has enabled people to continuously strengthen their ability to track the ship's movement status and spatial position, and obtain and collect massive ship trajectories. Data is becoming more and more convenient. How to effectively manage ship trajectory spatial da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 叶俊民胡晶叶竹君周伟
Owner HUAZHONG NORMAL UNIV