OLEI LR-16F, Руководство пользователя

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User Manual LR-16F
OMEN-16F-202012
4
4.2.2. Definition of GPS
 GPS definition is shown in Table 2
No. definition
1 PPS
2 5V
3 GND
4 RXD
5 GND
6 TXD
Table 2
Definition of GPS interface
Figure 4 Definition of GPS
5V is the output voltage, used for GPS power supplying; PPS uses 3.3V TTL level; RXD,
TXD uses 232 level.
 GPS analysis
：
$GPRMC,061124,A,3148.5621,N,12342.2488,W,163.4,132.8,191018,120.2,W,A*70
<1> <2> <3> <4> <5> <6><7> <8> <9> <10> <11><12>
No. Value Definition
1 061124 <1> UTC time in hhmmss (hour, minute and second) format
2 A <2> Positioning status, A=effective positioning, V=invalid positioning
3 3148.5621
<3> Latitude ddmm.mmmm (degree and minute) format (the front 0 will
also be transmitted)
4 N
<4> Latitude Hemisphere N (Northern Hemisphere) or S (Southern
Hemisphere)
5 12342.2488
<5> Longitude dddmm.mmmm (degree and minute) format (the front 0
will also be transmitted)
6 W <6> Longitude hemisphere E (east longitude) or W (west longitude)
7 163.4 <7> Ground rate (000.0~999.9 knots, the front 0 will also be transmitted)
8 132.8
<8> Ground heading (000.0~359.9 degrees, with true north as the
reference datum, the front 0 will also be transmitted)
9 191018 <9> UTC date in ddmmyy (day, month, year) format
10 120.2
<10> Magnetic declination (000.0~180.0 degrees, the front 0 will also
be transmitted)
11 W <11> Magnetic declination direction, E (east) or W (west)
12 A*70
<12> Mode indicator (only NMEA0183 version 3.00 display,
A=autonomous positioning, D=differential, E=estimate, N=invalid data )
Table 3 Description of GPS analysis
For program analysis, please check “Appendix D: GPS code analysis” for reference.