Method and system for correlating navigation plan and radar track based on segment matching

Abstract

The present invention provides a method for associating navigation plan and radar track based on segment matching, which includes: using the state of track point at the latest time of radar track and the historical correlation result of navigation plan to make a preliminary correlation decision, and then constructing the navigation plan through time compensation and interval sampling The matching point set of the voyage plan and the radar track, and then construct the track segment in the matching point set for segmentation matching, count the number of successfully matched points and the proportion in the point set, calculate the spatial similarity and time similarity, and finally through the comprehensive association Judgments get associated results. The present invention adopts segment matching method in the correlation calculation of navigation plan and radar track, utilizes the matching of several track segments to reflect the overall similarity of track, effectively reduces the influence of outlier points and yaw on the correlation result; In the decision-making stage, a comprehensive association judgment is made on the proportion of matching points, spatial similarity, matching points and time similarity to improve the accuracy of the association results.

Description

technical field [0001] The invention relates to a method for processing planning information data, in particular to a method and system for associating a navigation plan with a radar track based on segment matching. Background technique [0002] The voyage plan refers to the specific measures and countermeasures related to the voyage safety guarantee during the voyage that the ship draws up after accepting the voyage order. The voyage plan includes the entire process from berth to berth, the estimated total time of voyage, the estimated meteorological conditions and sea conditions on the route, the latitude and longitude of each turning point, the voyage of each section of the route and the estimated time of arrival at each turning point, and the navigation method of complex voyages As well as means of avoiding dangerous objects near the route, precautions in special navigation areas, etc. [0003] The purpose of the water traffic control system is to make the ships on the ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the current correlation method between the navigation plan and the radar track, the similarity between the navigation plan and the radar track is constructed based on the information of the isolated point, which cannot reflect the overall matching of the navigation plan and the radar track. , for the poor adaptability of the ship's actual navigation route and the planned route, the outlier point of the radar track, and the delay of the navigation time, etc., it is necessary to provide a segment matching based navigation plan and radar track Association method and system

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