Offshore high-frequency wireless chart updating system and method

Abstract

The invention discloses an offshore high-frequency wireless chart updating system and method. The system comprises a broadcasting control terminal, a shore-based broadcasting station and a chart receiving terminal, wherein the broadcasting control terminal is connected to a data server; the shore-based broadcasting station is connected to a shore-based network; the broadcasting control terminal and the data server are both connected to the shore-based broadcasting station through the shore-based network; and the shore-based broadcasting station is connected to the chart receiving terminal through a wireless transmission channel. According to the system and the method, a chart file can be conveniently transmitted, the system and the method can be seamlessly connected to a ship information system and equipment, the broadcasting efficiency is high, and the coverage area is wide; electronic chart correction information is directly broadcast, and the middle link is reduced in a manner of often receiving the files on the ship, the workload of sailors is reduced, and the timeliness and the accuracy of chart correction are improved.

Description

technical field [0001] The invention relates to the technical field of maritime safety information broadcasting, in particular to a system and method for updating high-frequency wireless charts at sea. Background technique [0002] In order to ensure the safety of navigation, it is necessary to provide timely and effective safety information about maritime navigation from the shore to ships sailing. Maritime Safety Information (MSI---Maritime Safety Information) refers to navigation warnings, weather reports, weather forecasts and information related to navigation safety. Additional emergency safety information. Relevant departments on shore broadcast important information about navigation safety to ships in major sea areas through NAVTEX coast station or INMARSAT. [0003] The existing navigational warnings and notices to navigation are mainly through the coastal stations broadcasting Morse telegrams and NAVTEX broadcasting NBDP radio telex to realize the release of inform...

AI Technical Summary

Problems solved by technology

[0003] The existing navigational warnings and notices to navigation are mainly through the coastal stations broadcasting Morse telegrams and NAVTEX broadcasting NBDP radio telex to realize the release of information. These two information release methods still have backward technical means, and it is difficult to guarantee timeliness. The disadvantage of small coverage, the ship cannot timely, comprehensively and systematically understand the safety information of the navigation sea area, which has great hidden dangers to the safety of ship navigation, and does not meet the needs of the development requirements of the modern information society

[0004] For example, the traditional maritime chart update requires CD-ROM mailing or online downloading and posting, which takes a long time and a long update cycle. It cannot update the chart files in a timely and effective manner, and maritime ships cannot obtain the required chart corrections and updates in time. Documents and news are often lagging behind. In 2017, there were several cases of shipwrecks in the waters of the Pearl River Estuary due to unupdated charts. As a result, there were great risks and hidden dangers to navigation safety and navigation

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