Hi,
I have recently added an AIS receiver to my gadget collection. The
device was supplied by Marinetraffic.com and is configured to send the
data it receives via the internet to populate the live chart you see
on the web page there. There's a number of stations around the place,
all of which contribute to the chart on a first-in best dressed basis
for each position report.
One of my areas of interest is VHF propagation and recently I noticed
on my station's coverage graph that there had been some 'troppo' about
and I had received signals from over 1000km away. Unfortunately, the
Marinetraffic website only shows a sliding 2-day window of coverage
and so I "lost" the chance to grab a screenshot before I realised.
The device (a Comar SLR300N) also has a USB port through which data
can be captured locally. I currently have this talking quite happily
to OpenCPN on my Kubuntu machine and displaying the data received by
my station, which I can compare against the live chart on the website.
I'd like to be able to tap the USB output and grab the data as it
comes off, parse it and store it locally so I can play around with it.
I have found various bits and pieces, that do part of the job, but my
attempts to glue it all together have been a bit Heath-Robinson.
I believe the device sends NMEA sentences. I have verified this by
using aisdispatcher and dumping the output and then using an online
decoder/parser to view the data, but have not yet succeeded in setting
it up to run a local routine without way more manual intervention than
I want.
Just wondering if anyone else has played with such devices and done a
similar thing ?
Andrew
--
-
http://surfcoast.redbubble.com |
https://picasaweb.google.com/107747436224613508618
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
"Unless someone like you, cares a whole awful lot, nothing is going to
get better...It's not !" - The Lorax
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
A committee is a cul-de-sac, down which ideas are lured and then
quietly strangled.
Sir Barnett Cocks
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
"A mind is like a parachute. It doesnt work if it's not open." :- Frank Zappa
-
Hi LUVvers,
I just put links to the notes of my talk at last Tuesday's
February main meeting up on the LUV website:
https://luv.asn.au/presentations
in original org-mode format (sorry encoding is NQR, it should be
utf8), and exported HTML.
-- Smiles, Les.
