lejos.devices
Class NMEASentence

java.lang.Object
  lejos.devices.NMEASentence

public class NMEASentence
extends Object

An NMEA sentence consists of (in order) a '$' character, some header information, many data fields seperated by ',' a '*' symbol at the end, and a final hexidecimal checksum number (two chars = one byte). e.g. $GPGGA,140819.000,4433.2984,N,08056.3959,W,6,00,50.0,168.7,M,-36.0,M,,0000*53 The first two chars (GP) are the talker id The next 3 characters (GGA) are the sentence id

Author:

BB

Constructor Summary

NMEASentence(String sentence)

Method Summary

byte	calcChecksum()
byte	getChecksum()
Vector	getDataFields()
String	getDataType() Returns the data type of the NMEA sentence.
String	getPrefix() Returns the prefix of the NMEA sentence.
boolean	isValid() Compares the checksum values to see if this is a corrupt sentence
void	setSentence(String sentence)

Methods inherited from class java.lang.Object

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

Constructor Detail

NMEASentence

public NMEASentence(String sentence)

Method Detail

setSentence

public void setSentence(String sentence)

getPrefix

public String getPrefix()

Returns the prefix of the NMEA sentence. e.g. "GP"

Returns:

prefix

getDataType

public String getDataType()

Returns the data type of the NMEA sentence. e.g. "GGA"

Returns:

data type

getDataFields

public Vector getDataFields()

isValid

public boolean isValid()

Compares the checksum values to see if this is a corrupt sentence

Returns:

true iff the checksum is valid

getChecksum

public byte getChecksum()

calcChecksum

public byte calcChecksum()