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Method and system for identifying pre-arrival of ship to port

An identification method and ship technology, applied in the fields of shipping informatization and intelligence, can solve problems such as data error conductivity, and achieve the effect of high accuracy and high correct matching rate.

Active Publication Date: 2022-01-11
SHANGHAI SHIP & SHIPPING RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problems that the existing pre-arrival port identification technology relies on AIS data to have error conduction and other problems. The present invention provides a ship pre-arrival port identification method based on the historical records of ship port calls, and the AIS DEST and the final destination port. Matching records, constructing a matching model for ship arrival port

Method used

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  • Method and system for identifying pre-arrival of ship to port
  • Method and system for identifying pre-arrival of ship to port
  • Method and system for identifying pre-arrival of ship to port

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment one: if figure 2 As shown, the priority queue includes the intersection of the ship's port call history record and the AIS DEST matching record from high to low, and when the intersection fails, the same type of ship that has matched the AIS DEST destination port according to the AIS DEST matching record, and has not When the intersection is possible, the different types of ships matched with the AISDEST destination port according to the AIS DEST matching records; when the intersection is not possible, the number of calls at the destination port in the current departure port voyage according to the ship’s port call history, and the number of calls at the current departure port voyage among all ships The number of calls at the port of destination.

Embodiment 2

[0060] Embodiment two: if image 3 As shown, the priority queue includes the intersection of the ship's port call history record and the AIS DEST matching record, the number of destination port calls in the current departure port voyage segment based on the ship's port call history record when the intersection fails, Ships of the same type according to the AIS DEST matching record have matched the AISDEST destination port when the intersection fails, and different types of ships have matched the AIS DEST destination port according to the AIS DEST matching record when the intersection fails, and the current departure port segment of all ships The number of calls at the port of destination.

Embodiment 3

[0061] Embodiment 3: Combined with the schedule data, the destination port of the container ship obtained by processing the matching logic in the schedule data is used as the highest priority of the potential destination port priority queue in the ship's pre-arrival port matching model, such as figure 2 and image 3 shown.

[0062] Below to figure 2 An embodiment shown will be described in detail.

[0063] According to the historical records of ship port calls and AIS DEST matching records, if the ship has ever had departure port and AIS DEST voyage records after AIS cleaning, and AIS DEST has been confirmed in AIS DEST matching records, that is, AISDEST matching records and ship port The intersection of call history records, then this destination port will have the second highest priority 2.

[0064] In the case that the AIS DEST matching record and the ship's port call history do not intersect, it may be that the AIS DEST is not accurate enough or is dirty data, or it m...

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Abstract

The invention provides a method and a system for identifying pre-arrival of a ship to a port, and the method comprises the steps: building a ship leg dynamic state based on ship AIS data to build a ship port attaching historical record, and building an AIS DEST matching record based on AIS DEST and the number of times of matching generated by ship leg attaching to the port; constructing a ship pre-arrival port matching model according to ship port attaching historical records and AIS DEST matching records, wherein the model is provided with a potential destination port priority queue with specific priorities; and obtaining pre-arrival data of ship navigation according to an optimal destination port identified according to a model matching result. According to the method and system, when the destination port in the AIS data is unclear or ambiguous, the real ship navigation destination port can be better reflected, the recorded parameters and the model parameters can be optimized after the ship is attached, the correct matching rate can be higher and higher along with the increase of the data volume and the matching amount, and compared with the prior art, the method and system have higher feasibility and accuracy.

Description

technical field [0001] The invention relates to the technical fields of shipping informatization and intelligence, in particular to a method and system for identifying a ship's pre-arrival at a port. Background technique [0002] Pre-arrival port identification, also known as ship destination port identification, how to identify the destination port of various dry bulk cargo, liquid bulk cargo, special ships and other ships sailing around the world, except for container liners with clear schedule information In the process of digitalization and intelligent shipping, it is extremely challenging and an indispensable link. At present, most of the industry's research on pre-arrival Hong Kong focuses on AIS real-time data, and uses various means, including pinyin recognition, machine learning and other technologies to identify AIS DEST to determine the destination port. There are also a small number of studies using big data technology to find patterns by analyzing historical ro...

Claims

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Application Information

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IPC IPC(8): G06F16/2458G06F16/29G06Q50/30
CPCG06F16/2462G06F16/29G06Q50/40
Inventor 魏永来冉佳佳陆锦辉
Owner SHANGHAI SHIP & SHIPPING RES INST
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