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GEOGATE-geojson handles AIS/NMEA encoding/decoding for GEOgate GPS/AIS/GTS framework
GeoGate is an opensource GPS/AIS tracking server framework, that enable easy integration of multiple GPS trackers in WEB applications. It provides data acquisition drivers for typical tracker devices or phone's GPS apps. It handle multiple database backend, and support GeoJSON, AIS & NMEA encoding/decoding. It embed support for multiple classes of trackers, phone-apps, as well an NMEA & AIS simulator.
Is the component that support AIS & NMEA encoding decoding for GeoGate. This component is fully independent of GeoGate and can be use without any other references to GeoGate
npm install ggencoder
note: ./bin/Ais2JsonClient cli depends on async & jison but encoder/decoder themself do not depend on anything
node ./node_modules/.bin/Ais2JsonClient --verbose --hostname=localhost --port=5001
// import GeoGate encoding/decoding NMEA/AIS methods
var AisEncode = require ("ggencoder").AisEncode;
var AisDecode = require ("ggencoder").AisDecode;
var NmeaEncode = require ("ggencoder").NmeaEncode;
var NmeaDecode = require ("ggencoder").NmeaDecode;
// decode and AIS message
var decMsg = new AisDecode ("!AIVDM,2,1,1,A,55?MbV02;H;s<HtKR20EHE:0@T4@Dn2222222216L961O5Gf0NSQEp6ClRp8,0*1C");
if (decMsg.valid) console.log ('%j', decMsg);
// encode AIS message
var encMsg = new AisEncode ({// class AB static info
msgtype : 24,
part : 2,
mmsi : 271041815,
cargo : 60,
callsign : "TC6163",
dimA : 0,
dimB : 15,
dimC : 0,
dimD : 5
}); if (encMsg.valid) console.log (encMsg.nmea);
// decode NMEA message
var decMsg = new NmeaDecode ('$GPGGA,064036.289,4836.5375,N,00740.9373,E,1,04,3.2,200.2,M,,,,0000*0E');
if (decMsg.valid) console.log ('%j', decMsg);
// encode NMEA message
encMsg = new NmeaEncode ({ // standard class B Position report
msgtype : 18,
cog : 72.2,
sog : 6.1000000000000005,
lon : 122.47338666666667,
lat : 36.91968,
}); if (encMsg.valid) console.log (encMsg.nmea);
cd test
node --use_strict AisEncodeDecodeTest.js
node --use_strict NmeaEncodeDecodeTest.js
FAQs
GEOGATE-geojson handles AIS/NMEA encoding/decoding for GEOgate GPS/AIS/GTS framework
The npm package ggencoder receives a total of 2,933 weekly downloads. As such, ggencoder popularity was classified as popular.
We found that ggencoder demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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