Tag Archives: MySql

Dynamically generated ship map from AIS signals

Using a NooElec NESDR Mini 2 USB RTL-SDR & ADS-B Receiver Set, RTL2832U & R820T2 Tuner, MCX Input ,

NooElec NESDR Mini 2 USB RTL-SDR
NooElec NESDR Mini 2 USB RTL-SDR

 

a Quark Elec QK-A022

QK-A022 Dual Channel AIS Receiver
QK-A022 Dual Channel AIS Receiver fittingly under a bottled ship, to stop movement  🙂

and a Quark Elec QK-A021 I set up a test rig.

QK-A021 AIS Receiver Dongle
QK-A021 AIS Receiver Dongle (Auto-hopping V1.0)

As antennas I used:

MULTI SCAN MAG SCANNER ANTENNA HAM marine VHF/UHF/CELLULAR BNC 100/1000mhz

MULTI SCAN MAG SCANNER ANTENNA HAM marine VHF/UHF/CELLULAR BNC 100/1000mhz
MULTI SCAN MAG SCANNER ANTENNA HAM marine VHF/UHF/CELLULAR BNC 100/1000mhz

a Moonraker Skyscan Mobile 

Moonraker Skyscan Mobile Antenna
Moonraker Skyscan Mobile Antenna

And a self made antenna (MONOPOLE + 2 RADIALS)

based on http://www.radioforeveryone.com/p/ais-antennas.html

MONOPOLE + 2 RADIALS AIS antenna
MONOPOLE + 2 RADIALS AIS antenna

all this was connected to an old Advent 5313 running Ubuntu16.04 LTS.

Advent 5313 running Ubuntu 16.04 LTS
Advent 5313 running Ubuntu 16.04 LTS

using AISdeco,

./aisdeco2 --gain 49.6 --freq-correction 57 --net 30007

AISPARSER

nc  localhost  30007  | unbuffer -p ./ais_text |  unbuffer -p egrep 'USER|POSITION' | unbuffer -p sed -r 's/(USER ID   : |POSITION  : )//g' |   unbuffer -p egrep -v '2320820|2320821' | unbuffer -p perl mmsitonamepos.pl

, self written Perl scripts, MySQL,  an openstreetmap server on another Ubuntu 14.04 LTS system and static open street maps

Local open street map server
Local open street map server

I generate an image every minute of the ships in my area using php and gd which is automatically transferred to a web server in Germany.

Dynamically generated AIS tracked ship map
Dynamically generated AIS tracked ship map

 

Clyde Estuary Time Lapse 23.4.2016 – 3.6.2016

Using the techniques mentioned on this site [UCAM Sending] I made a time lapse video of the Clyde Estuary in full HD using 59650 single images using avconf.

First the webcam plays the image on my server, then the Continue reading Clyde Estuary Time Lapse 23.4.2016 – 3.6.2016