Sistem detectie viteza autoturism

Componentele principale:

• Arduino Uno: Reprezentat în centrul schemei, este unitatea centrală de control
• Un display LCD cu 16 pini conectat la Arduino
• Buzzer: Un buzzer conectat pentru a emite sunete
• 2 senzori IR: Detecteaza miscarea

• Display
• 2X senzor IR
• Fire
• Buzzer activ
• Arduino Uno R3

De rezistente nu a fost nevoie.

Codul a fost scris in Arduino IDE.

while (1) {
  if ((PINC & (1 << PINC0)) == 0 && flag1 == 0) {
    timer1 = TCNT1;
    flag1 = 1;
  }

  if ((PINC & (1 << PINC1)) == 0 && flag2 == 0) {
    timer2 = TCNT1;
    flag2 = 1;
  }

  if (flag1 == 1 && flag2 == 1) {
    if (timer1 > timer2) {
      Time = (timer1 - timer2) / (F_CPU / 1024.0);
    } else if (timer2 > timer1) {
      Time = (timer2 - timer1) / (F_CPU / 1024.0);
    }
    speed = (distance / Time) * 3600 / 1000;
    flag1 = 0;
    flag2 = 0;
  }

  if (speed == 0) {
    lcd_set_cursor(0, 1);
    if (flag1 == 0 && flag2 == 0) {
      lcd_print("No car detected ");
    } else {
      lcd_print("Searching...    ");
    }
  } else {
    lcd_clear();
    lcd_set_cursor(0, 0);
    lcd_print("Speed:");
    char buffer[10];
    dtostrf(speed, 4, 1, buffer);
    lcd_print(buffer);
    lcd_print(" Km/Hr  ");
    lcd_set_cursor(0, 1);
    if (speed > 50) {
      lcd_print("  Over Speeding  ");
      PORTB |= (1 << PORTB5);
    } else {
      lcd_print("  Normal Speed   ");
    }
    _delay_ms(3000);
    PORTB &= ~(1 << PORTB5);
    speed = 0;
    lcd_clear();  
  }
}

#include <Wire.h> #include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

int timer1; int timer2;

float Time;

int flag1 = 0; int flag2 = 0;

float distance = 3.5; 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, 1);
lcd.init();
lcd.backlight();
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("VYCTOR MASHINA");
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; 
  speed = (distance / Time); 
  speed = speed * 3600; 
  speed = speed / 1000; 
}

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;
}

}