Speed check of vehicles on highway project
In this article we are going to see about how to calculate or check the speed of vehicles on a highway using Arduino microcontroller and some IR sensors .....
For this project you will need :
1) Arduino
2) Display module
3) IR sensor modules (2 pcs)
4) Connecting wires and a battery
Connection Diagram :
Principle for calculating the speed :
We are placing the two IR sensor modules at a particular distance to each other. Now, if a vehicle is coming the first sensor notes that and a counter or timer gets started, then the same car is noted by the second IR sensor module at a particular interval of time. With this time and distance between the sensor we can easily calculate the speed of any vehicle that is going on the road.
Source Code :
#include<LiquidCrystal.h>
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);
int timer1;
int timer2;
float Time;
int flag1 = 0;
int flag2 = 0;
float distance = 5.0;
float speed;
int ir_s1 = A0;
int ir_s2 = A1;
int buzzer = 13;
void setup(){
pinMode(ir_s1, INPUT);
pinMode(ir_s2, INPUT);
pinMode(buzzer, OUTPUT);
lcd.begin(16,2);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(" WELCOME To My ");
lcd.setCursor(0,1);
lcd.print("YouTube Channel");
delay(2000);
lcd.clear();
}
void loop() {
if(digitalRead (ir_s1) == LOW && flag1==0){timer1 = millis(); flag1=1;}
if(digitalRead (ir_s2) == LOW && flag2==0){timer2 = millis(); flag2=1;}
if (flag1==1 && flag2==1){
if(timer1 > timer2){Time = timer1 - timer2;}
else if(timer2 > timer1){Time = timer2 - timer1;}
Time=Time/1000;//convert millisecond to second
speed=(distance/Time);//v=d/t
speed=speed*3600;//multiply by seconds per hr
speed=speed/1000;//division by meters per Km
}
if(speed==0){
lcd.setCursor(0, 1);
if(flag1==0 && flag2==0){lcd.print("No car detected");}
else{lcd.print("Searching... ");}
}
else{
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Speed:");
lcd.print(speed,1);
lcd.print("Km/Hr ");
lcd.setCursor(0, 1);
if(speed > 50){lcd.print(" Over Speeding "); digitalWrite(buzzer, HIGH);}
else{lcd.print(" Normal Speed "); }
delay(3000);
digitalWrite(buzzer, LOW);
speed = 0;
flag1 = 0;
flag2 = 0;
}
}
IR sensor modules are used here to calculate the speed of the vehicles, we can also calculate the speed of the vehicle using various methods...
0 Comments