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Two-dimensional navigation path planning method based on vector electronic chart

An electronic chart and track planning technology, applied in the field of navigation and navigation, can solve problems such as low efficiency, achieve the effect of speeding up efficiency and avoiding low efficiency

Inactive Publication Date: 2013-04-24
INST OF ACOUSTICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of low efficiency caused by manual methods when doing track planning in free sea areas in the prior art, thereby providing a method for doing track planning on existing vector electronic charts

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  • Two-dimensional navigation path planning method based on vector electronic chart
  • Two-dimensional navigation path planning method based on vector electronic chart
  • Two-dimensional navigation path planning method based on vector electronic chart

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0046] The work to be accomplished by the present invention is to design a track according to the needs of the navigator on the vector electronic chart with marine data and navigation data. In the present embodiment, take the vector electronic chart of the S57 standard as an example, refer to figure 1 and figure 2 , to illustrate the design process of the new trajectory.

[0047]The navigator first selects the sea area related to the track to be designed on the vector electronic chart, and obtains the marine data and navigation data of the selected sea area. The ocean data includes information such as water depth, ocean currents, and hidden reefs in the sea area, and the navigation data includes information such as channel division and indicator marks. According to the marine data on the vector electronic chart and the needs of navigators, d...

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Abstract

The invention provides a two-dimensional navigation path planning method based on a vector electronic chart, comprising the following steps: selecting a sea area on the vector electronic chart, determining an unavailable arrival area, a necessary arrival point and a navigation path cost parameter; setting a starting point and an ending point on the selected sea area, storing the coordinate valuesof the starting point, the ending point and the necessary arrival point in a node library according to an arrival sequence; taking out two points from the node library to make connection between the two points, judging whether the obtained connection passes the unavailable arrival area or not, if not, taking the connection to be a candidate navigation path between the two points, if so, finding out points which is intersected with the connection and is not capable of arriving outside area from the selected sea area, repeatedly executing the step after coordinate values of found points are stored in the node library according to the arrival sequence; connecting the candidate navigation path between the two points in the node library to obtain all candidate navigation paths; calculating navigation cost of all candidate navigation path according to the navigation cost parameter; and taking the candidate navigation path with the minimum cost as the final navigation path.

Description

technical field [0001] The invention relates to the field of navigation and navigation, in particular to a two-dimensional track planning method based on vector electronic charts. Background technique [0002] When sailing at sea, track planning is something that navigators must do before sailing. With the popularization of computer applications, navigators can now also use computers to realize track planning on vector electronic charts. Compared with paper charts, vector electronic charts can provide a large amount of detailed, reliable, accurate and digital marine environmental geographic data, which are easy to save, update and computer processing, so the planning of flight paths on vector electronic charts is very important. Both performance and selectivity have been greatly improved. [0003] In the prior art, there is a method of track planning based on the data of the existing fixed track. This method is obviously not suitable for free sea areas where there is no fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00
Inventor 杨光田杰张扬帆
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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