GPS \ GSM

#include <TinyGPS.h>

#include <SoftwareSerial.h>
SoftwareSerial GPS(7,8); // configure software serial port
//SoftwareSerial gsm(9,10);
char speed=8; 
int i;
// Create an instance of the TinyGPS object
TinyGPS shield;
 
void setup()
{
  //pinMode(speed,INPUT);
  GPS.begin(9600);
  Serial.begin(9600);
 // gsm.begin(9600);
}
 
// The getgps function will interpret data from GPS and display on serial monitor
void getgps(TinyGPS &gps)
{
   Serial.println("AT+CMGF=1");    //select text mode
    delay(1000);
  Serial.println("AT+CMGS=\"9496617237\"");
  // Define the variables that will be used */
  float latitude, longitude;
  // Then call this function
  shield.f_get_position(&latitude, &longitude);
 //gps.f_get_position(&latitude,&longitutde);
  Serial.println("THE POSITION OF THE VEHICLE  NUMBER  ***** IS");
  Serial.print("Latitude: "); 
  Serial.print(latitude); 
  Serial.print(" Longitude: "); 
  Serial.println(longitude);
  Serial.println(" NALANCHIRA" );
  Serial.print("Altitude ");
  Serial.print(gps.f_altitude());
  Serial.print("m ");
  Serial.print(gps.f_speed_kmph());
  Serial.println("km/h");
  Serial.write(26); 
/*Serial.println("yes the information is available");
Serial.println(latitude);

Serial.println(longitude);*/
}
 
void loop()
{
  if((digitalRead(speed)==HIGH) || Serial.available()>0)
    {  
       do
         {   i=1; 
             byte a;
             if ( GPS.available() > 0 ) // if there is data coming from the GPS shield
               {
                 
                   a = GPS.read(); // get the byte of data
                   if(shield.encode(a)) // if there is valid GPS data...
                      { 
                        getgps(shield); // then grab the data and display it on the LCD
                        i=0;
                      }
                      else
                         continue;
               }
         }while(i=1);
     }
}