kopia lustrzana https://github.com/f4exb/sdrangel
57 wiersze
3.3 KiB
Markdown
57 wiersze
3.3 KiB
Markdown
<h1>AIS Plugin</h1>
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<h2>Introduction</h2>
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The AIS feature displays a table containing the most recent information about vessels, base-stations and aids-to-navigation,
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based on messages received via [AIS Demodulators](../../channelrx/demodais/readme.md).
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Typically the AIS feature would be used with two AIS Demodulators: one at 161.975MHz and 162.025MHz.
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The AIS feature can draw corresponding objects on the [Map](../../feature/map/readme.md) in 2D and 3D.
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<h2>Interface</h2>
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<h3>Vessels Table</h3>
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The vessels table displays the current status for each vessel, base station or aid-to-navigation, based on the latest received messages, aggregated from all AIS Demodulators.
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* MMSI - The Maritime Mobile Service Identity number of the vessel or base station. Double clicking on this column will search for the MMSI on VesselFinder.
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* Type - Vessel, Base station or Aid-to-Navigation.
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* Lat - Latitude in degrees. East positive. Double clicking on this column will center the map on this object.
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* Lon - Longitude in degrees. West positive. Double clicking on this column will center the map on this object.
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* Course - Course over ground in degrees.
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* Speed - Speed over ground in knots.
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* Heading - Heading in degrees (Heading is the direction the vessel is facing, whereas course is the direction it is moving in).
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* Status - Status of the vessel (E.g. Underway using engine, At anchor).
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* IMO - International Maritime Organization (IMO) number which uniquely identifies a ship. Double clicking on this column will search for the IMO on https://www.vesselfinder.com/
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* Name - Name of the vessel. Double clicking on this column will search for the name on https://www.vesselfinder.com/
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* Callsign - Callsign of the vessel.
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* Ship Type - Type of ship (E.g. Passenger ship, Cargo ship, Tanker) and activity (Fishing, Towing, Sailing).
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* Length - The length of the vessel.
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* Destination - Destination the vessel is travelling to. Double clicking on this column will search for this location on the map on this object.
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* Position Updated - Gives the date and time the last position was received.
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* Updated - Gives the date and time the last message was received.
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* Messages - Displays the number of messages received.
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Right clicking on the table header allows you to select which columns to show. The columns can be reorderd by left clicking and dragging the column header.
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Right clicking on a table cell allows you to copy the cell contents, view the vessel on a variety of websites or find the vessel on the map.
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Vessels are removed from the table if a message is not received for 10 minutes.
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<h3>Map</h3>
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The AIS feature can plot ships, base stations and aids-to-navigation on the [Map](../../feature/map/readme.md). To use, simply open a Map feature and the AIS plugin will display objects based upon the messages it receives from that point.
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Selecting an AIS item on the map will display a text bubble containing information from the above table. To centre the map on an item in the table, double click in the Lat or Lon columns.
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<h2>Attribution</h2>
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Map icons are by Maarten van der Werf, DE Alvida Biersack, ID and jokokerto, MY, from the Noun Project https://thenounproject.com/
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Map icons are from http://all-free-download.com.
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