GPS , , , $ GPGGA .
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
$ GPGSA, a, x, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx * hh <CR> <LF>
1. : M = , 2D 3D ;
A = , 2D/3D.
2. : 1 = , 2 = 2D, 3 = 3D
3-14. PRN , ( ).
15. PDOP.
16. HDOP.
17. VDOP.
18. .
HDOP (Horizontal Dilution of Precision) -
VDOP (Vertical) -
PDOP (Position) -
DOP
1 - , , .
2-3 ³, .
4-6 , . .
7-8 , , ( )
9-20 ,
21-50 ,
GSV - GPS
(SV), PRN , , / . , $ GPGSV . , .
1 2 3 4 5 6 7 8 15 16 17 18 19 20
$ GPGSV, x, x, xx, xx, xx, xxx, xx..........., xx, xx, xxx, xx * hh <CR> <LF>
1. , 1 9.
2. , 1 9.
3. .
4. PRN .
5. , , (90 - ).
6. , , 000 359 .
7. ³ / 00 99 , - .
8-11. , 4-7 .
12-15. , 4-7 .
16-19. , 4-7 .
20. .
RMC GPS
1 2 3 4 5 6 7 8 9 10 11 12
$ GPRMC, Hhmmss.ss, A, 1111.11, A, yyyyy.yy, a, xx, xx, ddmmyy, xx, A * hh <CR> <LF>
1. UTC
2. :
|
|
= , V =
3,4. , ϳ / ϳ (N/ S)
5,6. , / (E / W)
7. (SOG)
8.
9. : dd / mm / yy
10.
11. / (E / W)
12. (')
VTG -
1 2 3 4 5
$ GPVTG, x.x, T x.x, M x.x, N x.x, K * hh <CR> <LF>
1. , T
2. ,
3. (SOG) , N =
4. (SOG) / , = / .
5. (')
ZDA -
1 2 3 4 5 6 7
$ GPZDA, hhmmss.ss, xx, xx, xxxx, xx, xx * hh <CR> <LF>
1. UTC
2. ( 01 31)
3. ̳ ( 01 12)
4. г
5. , GMT, 00 13
6. , GMT,
7.
. . 1
. 1 , Locosys GPS Fox.
, . , , . ', COM-, GPS-, .
ϳ GPS- NMEA-. . 1 9600 / . ,
, . ,
GPS . , . ,
, ' , GPS- ', . GPS- , .
. -
'. , GPS-.
( ) , NMEA 0183
- GGA
- GSA
- GSV
- RMC
- VTG
.
GPGGA, 054843.000, 6000.0688, N, 03022.0354, E, 1, 08, 1.3, 131.5, M, 18.0, M, 0.0, 0000*78
$ -
GP-
GGA -
054843.000 - 05 -48 -43 -
6000.0688 - 60, 000688 ( )
N ϳ
03022.0354 30, 220354 ( )
|
|
E
1 - GPS ,
08 - ʳ , 8
1.3 - (HDOP).
131.5 -
18.0 - - WGS-84
0.0 -³ GPS
0000 - , , ID 0000
78- .
GPGSA, A, 3, 31, 32, 14, 20, 11, 17, 12, 30,,,, 2.4, 1.3, 2.0*36
GP-
GSA-
-
3 -3D
31, 32, 14, 20, 11, 17, 12, 30 , ( / )
2,4 - PDOP.
1, 3 - HDOP.
2.0- VDOP.
36 -
GPGSV, 3, 1, 12, 32,80,131,47,20,65,258,35,11,41,195, 25, 31,38,103,49*70 $GPGSV, 3, 2, 12, 17,29,285,29,14,20,055,41,12,12, 014,35, 30, 09,045,33*78 $GPGSV, 3, 3,12, 29, 34, 114,23,25,216,24,07,10,349,,,04,04,315,*78
$-
GP-
GSV -
3 -
1 -
12 - .
32,80,131,47 (32), (80), (131) (47)