Package lejos.hardware.gps

Class GGASentence

  • public class GGASentence
extends NMEASentence
    This class has been designed to manage a GGA Sentence GGA - essential fix data which provide 3D location and accuracy data. $GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47 Where: GGA Global Positioning System Fix Data 123519 Fix taken at 12:35:19 UTC 4807.038,N Latitude 48 deg 07.038' N 01131.000,E Longitude 11 deg 31.000' E 1 Fix quality: 0 = invalid 1 = GPS fix (SPS) 2 = DGPS fix 3 = PPS fix 4 = Real Time Kinematic 5 = Float RTK 6 = estimated (dead reckoning) (2.3 feature) 7 = Manual input mode 8 = Simulation mode 08 Number of satellites being tracked 0.9 Horizontal dilution of position 545.4,M Altitude, Meters, above mean sea level 46.9,M Height of geoid (mean sea level) above WGS84 ellipsoid (empty field) time in seconds since last DGPS update (empty field) DGPS station ID number *47 the checksum data, always begins with *
    Author:
    Juan Antonio Brenha Moral Added changes by Alan M Gilkes - Nov 12th 2014 - Lawrie Griffiths

    • Constructor Summary

      Constructors 
      Constructor Description
      GGASentence()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected double degreesMinToDegreesDbl​(java.lang.String DD_MM, int CoordinateType)
      Any GPS Receiver gives Lat/Lon data in the following way: http://www.gpsinformation.org/dale/nmea.htm http://www.teletype.com/pages/support/Documentation/RMC_log_info.htm 4807.038,N Latitude 48 deg 07.038' N 01131.000,E Longitude 11 deg 31.000' E This data is necessary to convert to Decimal Degrees.
      float getAltitude()
      Get Altitude
      int getFixQuality()
      Get GPS Quality Data
      float getHDOP()
      Get Horizontal Dilution of Precision (HDOP)
      java.lang.String getHeader()
      Returns the NMEA header for this sentence.
      double getLatitude()
      Get Latitude
      char getLatitudeDirection()
      Get Latitude Direction
      double getLongitude()
      Get Longitude
      char getLongitudeDirection()
      Get Longitude Direction
      int getSatellitesTracked()
      Returns the number of satellites being tracked to determine the coordinates.
      int getTime()
      Returns the last time stamp retrieved from a satellite
      void parse​(java.lang.String sentence)
      Method used to parse a GGA Sentence

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • GGASentence

        public GGASentence()

    • Method Detail

      • degreesMinToDegreesDbl

        protected double degreesMinToDegreesDbl​(java.lang.String DD_MM,
                                        int CoordinateType)
        Any GPS Receiver gives Lat/Lon data in the following way: http://www.gpsinformation.org/dale/nmea.htm http://www.teletype.com/pages/support/Documentation/RMC_log_info.htm 4807.038,N Latitude 48 deg 07.038' N 01131.000,E Longitude 11 deg 31.000' E This data is necessary to convert to Decimal Degrees. Latitude values has the range: -90 <-> 90 Longitude values has the range: -180 <-> 180
        Parameters:
        DD_MM -
        CoordinateType -
        Returns:
        the degrees

      • getHeader

        public java.lang.String getHeader()
        Returns the NMEA header for this sentence.
        Specified by:
        getHeader in class NMEASentence
        Returns:
        The NMEA header string ($GPGGA, $GPVTG, etc...)

      • getLatitude

        public double getLatitude()
        Get Latitude

      • getLatitudeDirection

        public char getLatitudeDirection()
        Get Latitude Direction
        Returns:
        the latitude direction

      • getLongitude

        public double getLongitude()
        Get Longitude

      • getLongitudeDirection

        public char getLongitudeDirection()
        Get Longitude Direction
        Returns:
        the longitude direction

      • getAltitude

        public float getAltitude()
        Get Altitude
        Returns:
        the altitude

      • getTime

        public int getTime()
        Returns the last time stamp retrieved from a satellite
        Returns:
        The time as a UTC integer. 123519 = 12:35:19 UTC

      • getSatellitesTracked

        public int getSatellitesTracked()
        Returns the number of satellites being tracked to determine the coordinates.
        Returns:
        Number of satellites e.g. 8

      • getFixQuality

        public int getFixQuality()
        Get GPS Quality Data
        Returns:
        the fix quality

      • getHDOP

        public float getHDOP()
        Get Horizontal Dilution of Precision (HDOP)
        Returns:
        the hdop

      • parse

        public void parse​(java.lang.String sentence)
        Method used to parse a GGA Sentence
        Specified by:
        parse in class NMEASentence