tramas recibidas mediante lectura del gps serialmente en formato nmea
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Dimel Arturo Contreras Martínez
TRAMAS RECIBIDAS MEDIANTE LECTURA DEL GPS SERIALMENTE EN FORMATO NMEA
$GPGSV,3,1,10,29,57,224,37,14,31,268,30,12,31,133,22,21,29,342,31*74$GPGSV,3,2,10,27,55,042,,15,34,292,,25,27,207,,02,06,138,*79$GPGSV,3,3,10,31,03,214,,05,03,081,*71$GPRMC,143135.481,A,1213.2379,S,07655.6330,W,0.00,38.93,280313,,,A*5E$GPGGA,143136.483,1213.2378,S,07655.6330,W,1,04,1.7,217.4,M,8.8,M,,0000*64$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143136.483,A,1213.2378,S,07655.6330,W,0.17,38.93,280313,,,A*58$GPGGA,143137.481,1213.2378,S,07655.6330,W,1,04,1.7,217.5,M,8.8,M,,0000*66$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143137.481,A,1213.2378,S,07655.6330,W,0.15,38.93,280313,,,A*59$GPGGA,143138.481,1213.2378,S,07655.6330,W,1,04,1.7,217.5,M,8.8,M,,0000*69$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143138.481,A,1213.2378,S,07655.6330,W,0.00,38.93,280313,,,A*52$GPGGA,143139.483,1213.2378,S,07655.6330,W,1,04,1.7,217.6,M,8.8,M,,0000*69$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143139.483,A,1213.2378,S,07655.6330,W,0.15,38.93,280313,,,A*55$GPGGA,143140.483,1213.2378,S,07655.6330,W,1,04,1.7,217.6,M,8.8,M,,0000*67$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPGSV,3,1,10,29,57,224,37,14,31,268,30,12,31,133,22,21,29,342,31*74$GPGSV,3,2,10,27,55,042,,15,34,292,,25,27,207,,02,06,138,*79$GPGSV,3,3,10,31,03,214,,05,03,081,*71$GPRMC,143140.483,A,1213.2378,S,07655.6330,W,0.00,38.93,280313,,,A*5F$GPGGA,143141.481,1213.2378,S,07655.6330,W,1,04,1.7,217.6,M,8.8,M,,0000*64$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143141.481,A,1213.2378,S,07655.6330,W,0.21,38.93,280313,,,A*5F$GPGGA,143142.483,1213.2377,S,07655.6330,W,1,04,1.7,217.6,M,8.8,M,,0000*6A$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143142.483,A,1213.2377,S,07655.6330,W,0.33,38.93,280313,,,A*52$GPGGA,143143.483,1213.2377,S,07655.6331,W,1,04,1.7,217.8,M,8.8,M,,0000*64$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143143.483,A,1213.2377,S,07655.6331,W,0.15,38.93,280313,,,A*56$GPGGA,143144.483,1213.2377,S,07655.6331,W,1,04,1.7,217.8,M,8.8,M,,0000*63$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143144.483,A,1213.2377,S,07655.6331,W,0.00,38.93,280313,,,A*55$GPGGA,143145.483,1213.2376,S,07655.6332,W,1,04,1.7,218.1,M,8.8,M,,0000*66$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPGSV,3,1,10,29,57,223,36,14,31,268,30,12,31,133,22,21,29,342,31*72$GPGSV,3,2,10,27,55,042,,15,34,292,,25,27,207,,02,06,138,*79$GPGSV,3,3,10,31,03,214,,05,03,081,*71$GPRMC,143145.483,A,1213.2376,S,07655.6332,W,0.30,38.93,280313,,,A*55$GPGGA,143146.483,1213.2376,S,07655.6332,W,1,04,1.7,218.1,M,8.8,M,,0000*65$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D$GPRMC,143146.483,A,1213.2376,S,07655.6332,W,0.00,38.93,280313,,,A*55$GPGGA,143147.483,1213.2376,S,07655.6332,W,1,04,1.7,218.1,M,8.8,M,,0000*64$GPGSA,A,3,29,14,12,21,,,,,,,,,4.5,1.7,4.2*3D
Dimel Arturo Contreras Martínez
SIGNIFICADO DE CADA ELEMENTO SEGÚN EL FORMATO DE DATOS (los dos principales).
**Posicion segun gps :
_primera:
$GPGGA,143129.483,1213.2381,S,07655.6331,W,1,04,1.7,216.6,M,8.8,M,,0000*6E
Latitud:1213.2381,S
Longitud:07655.6331,W
-ultima:
$GPGGA,143153.483,1213.2376,S,07655.6332,W,1,04,1.7,218.2,M,8.8,M,,0000*62
Latitud:1213.2376,S
Longitud:07655.6332,W
Dimel Arturo Contreras Martínez
***Posicion segun google :
-12.220334,-76.927418
Latitud: 12°13'13.20"S
Longitud: 76°55'38.70"O
Trama GPRMC
Dimel Arturo Contreras Martínez
Lo obtenido es :
$GPRMC,143153.483,A,1213.2376,S,07655.6332,W,0.00,38.93,280313,,,A*51
Como se puede ver este formato debería entregarnos los grados de variación magnética como una brújula , sin embargo no lo obtenemos porque el modulo GPS que tenemos se limita a longitud y latitud .Por ello será necesario utilizar la brújula externa HMC5883L.
INTERPRETACION DE RESULTADOS:
Dimel Arturo Contreras Martínez
Es por ello que lo que obtenemos es negativo en latitud y longitud porque estamos en la parte sur y oeste con respecto al meridiano y ecuador :
-12.220334,-76.927418
RELACION DE ANGULOS DE LATITUD – LONGITUD Y DISTANCIAS EN LA SUPERFICIE TERRESTRE.
Dimel Arturo Contreras Martínez
1)Para que se produzca un desplazamiento de 1m hacia una dirección única(longitud o latitud) , se calculara cuando tendrá que variar el ángulo:
Se asumirá como un sector circular:
φ xRprom=1m
φ= 1m6367.5Km
φ=1.57∗10−7 rad
φ=8.9982e-006°
2) La mínima detección de distancia:
Y .0000
Y .0001
R=6367500;%Radio prom de la tierra en md=angulo*pi*R/180
dmin= 0.1852 m=18.52cm