|
/***********************************************************************/
|
|
/* */
|
|
/* FILE :SP4b3.c */
|
|
/* DATE :Thu, May 27, 2021 */
|
|
/* DESCRIPTION :main program file. */
|
|
/* CPU GROUP :87B */
|
|
/* */
|
|
/* This file is generated by Renesas Project Generator (Ver.4.18). */
|
|
/* NOTE:THIS IS A TYPICAL EXAMPLE. */
|
|
/***********************************************************************/
|
|
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "sfr32c87.h"
|
|
#include "trame.h"
|
|
|
|
#define PI 3.14159
|
|
|
|
// Declaration des variables
|
|
|
|
typedef struct {
|
|
float latitude;
|
|
float longitude;
|
|
} Position;
|
|
|
|
typedef struct{
|
|
Position rpos;
|
|
float vitmax;
|
|
} Zone;
|
|
|
|
Position pos_prec;
|
|
|
|
Zone zones[] = {
|
|
{{44.7887762, -3.012}, 50},
|
|
{{44.7891220, -3.013}, 70},
|
|
};
|
|
|
|
|
|
//Trames de tests ? modifier si n?cessaire.
|
|
char * trames[]= {"$GPGSV,3,2,10,15,03,077,,18,04,041,42,19,85,271,,20,08,214,*7C",
|
|
"$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E",
|
|
"$GPRMC,141914.00,A,4545.6424,N,00306.6036,E,0.4,99.4,010206,,*0C",
|
|
"$GPGLL,4545.6424,N,00306.6036,E,141914.00,A*0E",
|
|
"$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D",
|
|
"$GPGSA,A,3,,03,,22,14,,01,,18,,,,3.9,3.4,1.9*39",
|
|
"$GPVTG,99.4,T,,M,0.4,N,0.7,K*57",
|
|
"$GPZDA,141914.00,01,02,2006,00,00*69",
|
|
0};
|
|
|
|
|
|
int trame_cmp(char* trame,char* type){
|
|
int i = 1;
|
|
int res = 1;
|
|
while ((res == 1) && (type[i-1] != '\0')){
|
|
if (trame[i] != type[i-1]){
|
|
res = 0;
|
|
}
|
|
i++;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
int decode_int(char c){
|
|
if (c<'0' || c>'9'){
|
|
return -1;
|
|
}
|
|
return c - '0';
|
|
}
|
|
|
|
int decode_nombre(char * ch, int n){
|
|
int i;
|
|
int res = 0;
|
|
for(i=0; i<n; i++){
|
|
res *= 10;
|
|
res += decode_int(ch[i]);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
float conv_lat(char *ch){
|
|
float res = 0;
|
|
int i;
|
|
float val_sexa = decode_nombre(ch,4);
|
|
|
|
for (i=5; i<9; i++){
|
|
val_sexa += (decode_int(ch[i]))*pow(10,-i+4);
|
|
}
|
|
|
|
res = (int)(val_sexa/100);
|
|
res = res + (val_sexa - res*100)/60;
|
|
|
|
return res;
|
|
}
|
|
|
|
float conv_long(char *ch){
|
|
float res = 0;
|
|
int i;
|
|
float val_sexa = decode_nombre(ch,5);
|
|
|
|
for (i=6; i<10; i++){
|
|
val_sexa += (decode_int(ch[i]))*pow(10,-i+5);
|
|
}
|
|
|
|
res = (int)(val_sexa/100);
|
|
res = res + (val_sexa - res*100)/60;
|
|
|
|
return res;
|
|
}
|
|
|
|
float conversion(char *ch){
|
|
int i = 0;
|
|
float res = 0;
|
|
while (ch[i] != '\0'){
|
|
i++;
|
|
}
|
|
if (i == 9){
|
|
res = conv_lat(ch);
|
|
}
|
|
else if (i == 10){
|
|
res = conv_long(ch);
|
|
}
|
|
else{res = 1000.0;}
|
|
return res;
|
|
}
|
|
|
|
int decode_trame(char * trame, Position *p){
|
|
char longi[10];
|
|
char lati[9];
|
|
int cpt = 0;
|
|
int i = 0;
|
|
int j = 0;
|
|
int y = 0;
|
|
if (trame_cmp(trame,"GPGGA")==1){
|
|
while (trame[i] != '\0'){
|
|
if (trame[i] == ','){ //On compte le nombre de virgule
|
|
cpt += 1;
|
|
i ++;
|
|
}
|
|
if (cpt == 2) { //latitude
|
|
lati[j] = trame[i]; //conversion latitude
|
|
j ++;
|
|
}
|
|
if (cpt == 4) { //longitude
|
|
longi[y] = trame[i]; //conversion longitude
|
|
y ++;
|
|
}
|
|
i ++;
|
|
}
|
|
p->latitude = conv_lat(lati);
|
|
p->longitude = conv_long(longi); //conversion dans structure position
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
float calcul_distance(Position p_1, Position p_2){
|
|
float rayon = 6378.14; //Rayon de la Terre (km).
|
|
float DistAng = 0;
|
|
DistAng = (PI/180)*acos((sin(p_1.latitude)*sin(p_2.latitude)+cos(p_1.latitude)*cos(p_2.latitude)*cos(p_2.longitude-p_1.longitude))); //Calcul distance angulaire
|
|
return DistAng*rayon; //On renvoi le calcul de la distance : D (km) = DistanceAngulaire*R.
|
|
}
|
|
|
|
float calcul_vitesse(Position p_1, Position p_2){
|
|
return calcul_distance(p_1,p_2)*3600; //On calcul la vitesse (en km) avec la formule v=d/t avec t=1s.
|
|
}
|
|
|
|
int distance_a_la_plus_poche_zone(Position p, Zone r[], int nb_zones, float *d){
|
|
int i;
|
|
int index = 0;
|
|
*d = calcul_distance(p, r[0].rpos); //On initialise une distance pour pouvoir ensuite la comparer et chercher le minimum.
|
|
for (i = 1; i<nb_zones; i++){ //On parcours la table de zone dangereuse.
|
|
if (calcul_distance(p,r[i].rpos) < *d){
|
|
index = i;
|
|
*d = calcul_distance(p,r[i].rpos);
|
|
}
|
|
}
|
|
return index;
|
|
}
|
|
|
|
|
|
void traitement(char * trame){
|
|
Position pos;
|
|
int alarme;
|
|
float vitesse;
|
|
float seuil = 0.5;
|
|
int index;
|
|
float distance;
|
|
|
|
if (trame_cmp(trame,"GPGGA")==1){
|
|
//printf ("> %s\n",trame);
|
|
if (decode_trame(trame,&pos)==1){
|
|
vitesse = calcul_vitesse(pos,pos_prec);
|
|
index = distance_a_la_plus_poche_zone(pos,zones,2,&distance);
|
|
if ((distance <= seuil) && (vitesse > zones[index].vitmax)){
|
|
alarme = 1;
|
|
// printf("Alarme on \n");
|
|
}
|
|
alarme = 0;
|
|
//printf("Alarme off \n");
|
|
}
|
|
pos_prec.latitude = pos.latitude;
|
|
pos_prec.longitude = pos.longitude;
|
|
}
|
|
}
|
|
|
|
void main(void){
|
|
int t = 0;
|
|
//t = trame_cmp("$GPGGA suite chaine","GPGGA");
|
|
//t = decode_int('8');
|
|
|
|
t = decode_nombre("123",3);
|
|
t = decode_nombre("123",2);
|
|
t = decode_nombre("123",3);
|
|
t = decode_nombre("125481617943",9);
|
|
t = decode_nombre("123",3);
|
|
t = decode_nombre("123",3);
|
|
t = decode_nombre("123",3);
|
|
|
|
}
|