Package lejos.hardware.gps

Class RMCSentence

java.lang.Object

lejos.hardware.gps.NMEASentence

lejos.hardware.gps.RMCSentence

public class RMCSentence
extends NMEASentence

RMC is a Class designed to manage RMC Sentences from a NMEA GPS Receiver RMC - NMEA has its own version of essential gps pvt (position, velocity, time) data. It is called RMC, The Recommended Minimum, which will look similar to: $GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A Where: RMC Recommended Minimum sentence C 123519 Fix taken at 12:35:19 UTC A Status A=active or V=Void. 4807.038,N Latitude 48 deg 07.038' N 01131.000,E Longitude 11 deg 31.000' E 022.4 Speed over the ground in knots 084.4 Track angle in degrees True 230394 Date - 23rd of March 1994 003.1,W Magnetic Variation *6A The checksum data, always begins with *

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	ACTIVE
private float	compassDegrees
private int	dateOfFix
private int	DATETIMELENGTH
private int	dateTimeOfFix
private float	groundSpeed
static java.lang.String	HEADER
private float	KNOT
private double	latitude
private java.lang.String	latitudeDirection
private double	longitude
private java.lang.String	longitudeDirection
private float	magneticVariation
private java.lang.String	magneticVariationLetter
private java.lang.String	nmeaHeader
private float	speed
private java.lang.String	status
private java.lang.String	VOID

Fields inherited from class lejos.hardware.gps.NMEASentence

LATITUDE, LONGITUDE

Constructor Summary

Constructors

Constructor and Description
RMCSentence()

Method Summary

Modifier and Type	Method and 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	getCompassDegrees() Return compass value from GPS
int	getDate() Get date in integer format
java.lang.String	getHeader() Returns the NMEA header for this sentence.
double	getLatitude() Get Latitude
double	getLongitude() Get Longitude
float	getSpeed() Get Speed in Kilometers
java.lang.String	getStatus()
int	getTime() Get time in integer format
void	parse(java.lang.String sentence) Parse a RMC Sentence $GPRMC,081836,A,3751.65,S,14507.36,E,000.0,360.0,130998,011.3,E*62

Methods inherited from class lejos.hardware.gps.NMEASentence

degreesMinToDegrees, isNumeric

Methods inherited from class java.lang.Object

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

Field Detail

nmeaHeader

private java.lang.String nmeaHeader

dateTimeOfFix

private int dateTimeOfFix

DATETIMELENGTH

private final int DATETIMELENGTH

See Also:

Constant Field Values

status

private java.lang.String status

ACTIVE

private final java.lang.String ACTIVE

See Also:

Constant Field Values

VOID

private final java.lang.String VOID

See Also:

Constant Field Values

latitude

private double latitude

latitudeDirection

private java.lang.String latitudeDirection

longitude

private double longitude

longitudeDirection

private java.lang.String longitudeDirection

KNOT

private final float KNOT

See Also:

Constant Field Values

groundSpeed

private float groundSpeed

compassDegrees

private float compassDegrees

dateOfFix

private int dateOfFix

magneticVariation

private float magneticVariation

magneticVariationLetter

private java.lang.String magneticVariationLetter

speed

private float speed

HEADER

public static final java.lang.String HEADER

See Also:

Constant Field Values

Constructor Detail

RMCSentence

public RMCSentence()

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...)

getStatus

public java.lang.String getStatus()

getLatitude

public double getLatitude()

Get Latitude

getLongitude

public double getLongitude()

Get Longitude

Returns:

the longitude

getSpeed

public float getSpeed()

Get Speed in Kilometers

Returns:

the speed

getTime

public int getTime()

Get time in integer format

Returns:

the time

getDate

public int getDate()

Get date in integer format

Returns:

the date

getCompassDegrees

public float getCompassDegrees()

Return compass value from GPS

Returns:

the compass heading

parse

public void parse(java.lang.String sentence)

Parse a RMC Sentence $GPRMC,081836,A,3751.65,S,14507.36,E,000.0,360.0,130998,011.3,E*62

Specified by:

parse in class NMEASentence