Révision 460
Ajouté par yoguer il y a presque 4 ans
| main.c | ||
|---|---|---|
|
#include <strings.h>
|
||
|
#include "trame.h"
|
||
|
#include <math.h>
|
||
|
|
||
|
int tab_memoirelatlong[2];
|
||
|
|
||
|
//Trames de tests ? modifier si n?cessaire.
|
||
|
char * trames[]= {"$GPGSV,3,2,10,15,03,077,,18,04,041,42,19,85,271,,20,08,214,*7C",
|
||
| ... | ... | |
|
}
|
||
|
|
||
|
|
||
|
unsigned long int conversion_sexa(char *latitude_longitude)
|
||
|
int conversion_sexa(char *latitude_longitude)
|
||
|
{
|
||
|
float reste,resultat;
|
||
|
unsigned long int resultVF=0;
|
||
|
int resultVF=0;
|
||
|
|
||
|
int tram=decode_nombre(latitude_longitude,12);
|
||
|
|
||
| ... | ... | |
|
}
|
||
|
|
||
|
|
||
|
void traitement_trame(char *trame)
|
||
|
void traitement_trame(char *trame,int *platitude,int *plongitude)
|
||
|
{
|
||
|
char tab_latitude[13];
|
||
|
char tab_longitude[14];
|
||
|
char tab_latitude[13],tab_longitude[14];
|
||
|
int i,j;
|
||
|
unsigned long int latitude,longitude;
|
||
|
|
||
|
if (trame_cmp(trame,"GPGGA")==1)
|
||
|
{
|
||
|
for(i=0;i<11;i++)
|
||
|
{
|
||
|
tab_latitude[i]=trame[i+17];
|
||
|
}
|
||
|
latitude=conversion_sexa(tab_latitude);
|
||
|
*platitude=conversion_sexa(tab_latitude);
|
||
|
|
||
|
for(j=0;j<12;j++)
|
||
|
{
|
||
|
tab_longitude[j]=trame[j+29];
|
||
|
}
|
||
|
longitude=conversion_sexa(tab_longitude);
|
||
|
*plongitude=conversion_sexa(tab_longitude);
|
||
|
|
||
|
printf("latitude=%ld\n",latitude);
|
||
|
printf("longitude=%ld\n",longitude);
|
||
|
printf ("> %s\n",trame);
|
||
|
}
|
||
|
|
||
|
|
||
|
int calcul_vitesse(int *platitude,int *plongitude)
|
||
|
{
|
||
|
float vitesse,distance;
|
||
|
|
||
|
if((tab_memoirelatlong[0]!=*platitude) || (tab_memoirelatlong[1]!=*plongitude))
|
||
|
{
|
||
|
distance=sqrt((*platitude-tab_memoirelatlong[0])*(*platitude-tab_memoirelatlong[0])+(*plongitude-tab_memoirelatlong[1])*(*plongitude-tab_memoirelatlong[1]));
|
||
|
vitesse=distance*0.1852507138; //rayon de la terre * kradian=0.1852507138 (vitesse en m/s)
|
||
|
vitesse=vitesse*3.6; //vitesse en km/h, 3.6=3600s/1000m
|
||
|
|
||
|
printf("distance=%d\n",distance);
|
||
|
printf("vitesse=%d\n",vitesse);
|
||
|
|
||
|
printf("latitude=%d\n",*platitude);
|
||
|
printf("longitude=%d\n",*plongitude);
|
||
|
printf("memolat=%d\n",tab_memoirelatlong[0]);
|
||
|
printf("memolong=%d\n",tab_memoirelatlong[1]);
|
||
|
}
|
||
|
tab_memoirelatlong[0]=*platitude;
|
||
|
tab_memoirelatlong[1]=*plongitude;
|
||
|
}
|
||
|
|
||
|
|
||
| ... | ... | |
|
static int cpt=0;
|
||
|
cpt++ ;
|
||
|
|
||
|
traitement_trame(trame);
|
||
|
int latitude, longitude;
|
||
|
int *platitude=&latitude,*plongitude=&longitude;
|
||
|
|
||
|
if (trame_cmp(trame,"GPGGA")==1)
|
||
|
{
|
||
|
traitement_trame(trame,platitude,plongitude);
|
||
|
calcul_vitesse(platitude,plongitude);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
| ... | ... | |
|
{
|
||
|
char *trame_latitude_longitude;
|
||
|
trame_latitude_longitude="35723.2475,W";
|
||
|
unsigned long int retour;
|
||
|
int retour;
|
||
|
|
||
|
retour=conversion_sexa(trame_latitude_longitude);
|
||
|
printf("retour=%ld",retour);
|
||
|
//printf("retour=%ld",retour);
|
||
|
}
|
||
|
|
||
|
|
||
Formats disponibles : Unified diff
Fonction vitesse