The NMEA protocol handler parses the NMEA 0183 protocol (f.e. from GPS devices). For input both GenericPush and GenericPull can be used in combination with File or UDP transport handler. This protocol can also be used for output, to write NMEA sentences.
Supported Sentences
ID | Description | Fields |
---|---|---|
DPT | Depth of Water | depth, offset |
GGA | Global Positioning System Fix Data. Time, Position and fix related data | time, latitude, latitudeHem, longitude, longitudeHem, gpsQuality, numberOfSattelites, horizontalDilution, antennaAltitude, antennaAltUnits, geoidalSeparation, geoidalSepUnits, ageOfDgps, differentialRefId |
GLL | Geographic Position – Latitude/Longitude | latitude, latitudeHem, longitude, longitudeHem, time, status |
HDG | Heading - Deviation & Variation | heading, deviation, deviationDir, variation, variationDir |
MTW | Water Temperature | degrees, unit |
MWV | Wind Speed and Angle | angle, reference, speed, speedUnit, status |
RMC | Recomended Minimum Navigation Information | time, status, latitude, latitudeHem, longitude, longitudeHem, speedOverGround, trackMadeGood, date, magneticVariation, magneticHem, signalIntegrity |
RPM | Revolutions | source, number, speed, pitch, status |
RSA | Rudder Sensor Angle | starboard, sbStatus, portboard, pbStatus |
TTM | Tracked Target Message | targetNumber, targetDistance, bearing, bearingUnit, targetSpeed, targetCourse, courseUnit, closestPointOfApproach, timeUntilClosestPoint, distanceUnit, targetLabel, targetStatus, referenceTarget, time, typeAcquisition |
VDM | AIS (Automatic Identification System) Message | fragmentsCount, fragmentId, messageId, channel, message, fillBits |
VDO | Same as VDM for own ship | see VDM |
VTG | Track Made Good and Ground Speed | headingTrack, trackReference, headingMagnetic, magneticReference, speedKnots, speedKnotsUnits, speedKilometers, speedKilometersUnits |
Default Fields
All above mentioned sentences have default fields derieved from Sentence.
Field | Type | Description |
---|---|---|
beginChar | char | The first character, the nmea sentence starts with (e.g. $ or !) |
talkerId | String | The two digit talker ID (Single character 'P' for proprietary sentence types) |
sentenceId | String | Mostly three digit sentence ID for standard types mentioned in first column in table above. (Or proprietary sentences, starting with three digit manufacturer code) |
Options
- delay: Delay of reading in milliseconds (Only in GenericPull mode)
Example
PQL
NMEA Protocol Handler
/// Read from File input = ACCESS({source='FileInput', wrapper='GenericPull', transport='File', protocol='NMEA', dataHandler='KeyValueObject', options=[['filename','...'], ['delay','100']] }) /// Read from UDP on Port 4711 inputGps = ACCESS({source='GpsInput', wrapper='GenericPush', transport='UDPServer', protocol='NMEA', dataHandler='KeyValueObject', options=[['port', '4711']] }) /// UDP Broadcast on Port 6003 output = SENDER({sink='SinkGps', wrapper='GenericPush', transport='UDPClient', protocol='NMEA', dataHandler='KeyValueObject', options=[['host', '255.255.255.255'],['port', '6003']] }, inputGps)
CQL
NMEA Protocol Handler
TODO