Traffic Surveillance System Using MATLAB and Arduino

1//#include<LiquidCrystal.h>
2//LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
3
4char  str[70];
5char *test="$GPGGA";      
6char logitude[10];
7char latitude[10];
8
9int  In=8;
10//int LED=8;
11
12int i,j,k;
13int temp;
14//int Ctrl+z=26;    //for  sending msg
15
16void setup()
17{
18//  lcd.begin(16,2);
19  Serial.begin(9600);
20  pinMode(In, INPUT);
21//  pinMode(LED, OUTPUT);
22//  lcd.setCursor(0,0);
23//  lcd.print("     trafic    ");
24//  lcd.setCursor(0,1);
25//  lcd.print("   survilience ");
26//  delay(4000);
27}
28
29void loop()
30{
31  
32  while(digitalRead(In)  != 1);
33  if (temp==1)
34  {
35    for(i=18;i<27;i++)          //extract latitude  from string
36    {
37      latitude[j]=str[i];
38      j++;
39    }
40   
41    for(i=30;i<39;i++)          //extract longitude from string
42    {
43      logitude[k]=str[i];
44      k++;
45    }
46   
47   // lcd.setCursor(0,0);        //display latitude  and longitude on 16X2 lcd display 
48   // lcd.print("Lat(N)");
49   // lcd.print((unsigned)latitude);
50   // lcd.setCursor(0,1);
51   // lcd.print("Lon(E)");
52   // lcd.print((unsigned)logitude);
53   // delay(100);
54   // digitalWrite(LED, HIGH);
55    Serial.println("AT+CMGF=1");    //select text mode
56    delay(10);
57    Serial.println("AT+CMGS=\\"9610126059\\"");  // enter receipent number
58    Serial.println("Trafic Jam ");
59    Serial.print("Latitude(N):  ");             //enter latitude in msg
60    Serial.println(latitude); 
61    Serial.print("Longitude(E):  ");            //enter Longitude in Msg
62    Serial.println(logitude); 
63                    //enter  latitude value in msg
64                    //enter longitude value in msg
65    Serial.println("Thanks");  
66    Serial.write(26);                      //send  msg  Ctrl+z=26
67    temp=0;
68    i=0;
69    j=0;
70    k=0;
71    delay(4000);                        // next reading within 20 seconds
72   // digitalWrite(LED,  LOW);
73}
74}
75
76void serialEvent()
77{
78  while (Serial.available())            //Serial  incomming data from GPS
79  {
80    char inChar = (char)Serial.read();
81     str[i]=  inChar;                    //store incomming data from GPS to temparary string str[]
82     i++;
83     if (i < 7)                      
84     {
85      if(str[i-1]  != test[i-1])         //check for right string
86      {
87        i=0;
88      }
89     }
90    if(i >=60)
91    {
92     temp=1;
93    }
94  }
95}