Vessel navigation aiding facility data automatic extraction method based on S-57 sea chart

Abstract

The present invention discloses a vessel navigation aiding facility data automatic extraction method based on an S-57 sea chart. The method comprises the following steps of: Step 1: inputting vessel navigation aiding facility data in an interactive channel input manner; Step 2: inputting a target with a special shape in a manual input manner; and step 3: automatically extracting point data of a buoy, a beacon and a lighthouse. The vessel navigation aiding facility data automatic extraction method based on the S-57 sea chart, disclosed by the present invention, solves the problem of difficulty in extracting vessel navigation aiding facility data of a vessel traffic management system (VTS). According to the vessel navigation aiding facility data automatic extraction method, based on the vessel navigation aiding facility data such as a channel, anchorage ground, the buoy and the like contained in the S-57 sea chart, in combination with specific requirements of the VTS on the vessel navigation aiding facility data, the vessel navigation aiding facility data are automatically extracted, so that the acquisition, loading and management efficiency of vessel navigation environment data are improved, and the vessel navigation environmental data consistency in two-dimensional and three-dimensional display is guaranteed.

Description

technical field [0001] The invention relates to an application field of a vessel traffic management system (VTS), in particular to a method for automatically extracting data of ship navigation aids based on the S-57 chart according to the S-57 data standard and the special display requirements of the vessel traffic management system. Background technique [0002] S-57 is an electronic chart data transmission standard formulated by the International Hydrographic Organization, which stipulates how the electronic chart data should be stored and transmitted in a structured manner, and the display method of the data is stipulated by the S-52 standard. The standardized data structure and display style of the S-57 chart enhances the potential commercial value of the VTS system. VTS pursues the development of informatization and intelligence, and the requirements for the data of ship navigation aids are becoming more and more complex. With the continuous development of port trade, ...

AI Technical Summary

Problems solved by technology

[0005] 2. The displayed content does not match the actual application data;

[0006] The display system of the Vessel Traffic Management System uses S-57 charts or other maps to display, but the data used for alarm resolution, navigation aid services and traffic organization are manually entered into the database, which is different from the charts on S-57 charts. The content sources are different, and there is no matching, and there is a problem that the map display data is inconsistent with the background calculation application data

[0007] 3. The target display is incomplete;

In addition, the S-57 chart shows the data of the ship's navigation aids too prominently, which will greatly distract VTS users from paying attention to the ship

[0009] 4. Poor three-dimensional display effect;

[0010] At present, the application of S-57 charts in 3D display is relatively small. In order to display navigation environment data in 3D maps, it is generally displayed in the form of feature layers, that is, after the two-dimensional display content of S-57 charts is rasterized. Automatically calibrated to the three-dimensional coordinate space, the display effect of this method is poor, and the data display and concealment of the S-57 chart cannot be controlled

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