DGPS224(JLR-4341)
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Appendix１ Data Format
１．
Protocol
・
Bit Rate
：
4800,9600,19200,38400bps selectable
（
Defaute:4800bps
）
When power is turned on, bit rate is set to 4800bps.
・
Data Bit
：
8 bit
・
Parity
：
None
・
Stop Bit
：
1 bit
・
Output Interval
：
1 second
2.Output Data
(1)GGA (Global Positioning System Fix Data)
Version 1.5
$GPGGA, hhmmss,ddmm.mmm,a,dddmm.mmm,a,x,x,xx,uxxxx,M,uxxx,M,xx,xxxx<CR><LF>
1
2 3 4 5 6 7 8 9 10 11 12 13 14
Version 2.1
$GPGGA,hhmmss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,xx,uxxxx,M,uxxx,M,xx,xxxx*hh<CR><LF>
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15
Version 2.3, IEC
$GPGGA, hhmmss.ss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,xx,uxxxx,M,uxxx,M,xx,xxxx*hh<CR><LF>
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15
1
: UTC time (hours, minutes, seconds)
Measured UTC [1/100 sec] (Version 2.3, IEC)
2, 3
: Latitude (deg, min), N / S
4, 5
: Longitude (deg, min), E / W
6
: GPS measurement status
0 = No position measurement, 1 = GPS positioning, 2 = DGPS positioning
7
: Number of satellites used for position fix
8
: HDOP (0 – 20)
9, 10
: Antenna altitude above sea level (m), u: sign (+,-)
The sign is omitted if value is positive. (IEC)
11, 12
: Geoid height (m), u: sign (+,-)
The sign is omitted if value is positive. (IEC)
13
: Version 1.5
→
DGPS data seconds expired
(NULL if not performing DGPS positioning)
Version
2.1
→
DGPS data seconds expired (00 if not performing DGPS positioning)
Version 2.3, IEC
→
DGPS data seconds expired
(NULL if not performing DGPS positioning)
14
: Version 1.5
→
DGPS reference station ID
Version
2.1
→
DGPS reference station (0000 if not performing DGPS positioning)
Version 2.3, IEC
→
DGPS reference station (NULL if not performing DGPS positioning)
15 :
Checksum
Note 1.
For version 1.5, when the position is not fixed, outputs last measured position data.
For version 2.3, IEC, when the position is not fixed, outputs last measured position data, date, and time.
For version 2.3, IEC, when power is turned on, or master reset is performed, the initial time, date, and
position settings are NULL.