[ gpsdrive ] making use of AIS data

[Doug Robinson]

Internet links are tough to find offshore, and I think data from them would
be difficult to integrate since it is in display format already.  Data
coming from the receiver is delivered in some kind of sentence format
already.  It just has to be interpreted and combined with the gpsd
sentences.  Multiplexers are commonly sold to the sailors just for this
task. One of many:
www.marinetalk.com/articles-marine-companies/art/New-Multiplexer-for-Nautical-Instruments-THE18494616TU.html
On Wed, Jan 14, 2009 at 12:42 PM, Guenther Meyer <d.s.e at sordidmusic.com>wrote:

> Am Mittwoch 14 Januar 2009 schrieb Doug Robinson:
> > AIS traffic comes from a radio receiver via a serial link most generally.
> >  Could be integrated using a Bluetooth stream as well.  As I understand
> it
> > class A traffic (the big ships), transmit position twice a minute and
> > generally are moving @ 5 to 25 knots.  Class B traffic (us little guys),
> > are transmitting once a minute and could be at 6 knots for the rag driven
> > and 35+ knots for the stink pots.  Guess I would recast the incoming
> > traffic from AIS into the existing GPSDrive format as data off the
> friends
> > server and have a look.
>
> I guess, the data is coming from a local receiver connected to the
> computer,
> and not from an internet connection.
> so it would be very easy to include this, if the application, that reads
> the
> data can write directly to the gpsdrive database as POI data, or gpsdrive
> connects in some way to this application.
>
> I would suggest a poi type 'nautical.ais' for that, having additional
> subtypes, if the data is specified more exactly, like:
> nautical.ais.port
> nautical.ais.passenger_vessel
> nautical.ais.cargo_vessel
> nautical.ais.tanker
> ...
> Yes:

  Ports  Stations
 Passenger Vessels
 Cargo Vessels
 Tankers
 High Speed Craft
 Tug, Pilot, etc
 Yachts & Others
 Navigation Aids
 Unspecified Ships
 Ships Underway
 Anchored/Moored
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>


-- 
Doug Robinson
office:      fdr at mytemyke.com
direct:     fdr at mytemyke.net (gmail)
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