RFID Based Smart Traffic Signal for Ambulance

Hello world

This is a RFID Based Smart Traffic Signal for Ambulance project. With the help of RFID tag the ambulance when required to pass through signals the signal becomes green by keeping mind all other signals of the junction becomes red.

This helps to pass the signals by ambulance without waiting for green signal like in thickly populated areas / traffic areas.

The program is written in Arduino IDE and the complete program is given below.

Parts to be print for signal (Parts download from thingiverse link https://www.thingiverse.com/thing:3235977/edit )

1xBase

1xCap

1x Led holder

1x Led holder top

Components required

Arduino Uno 1 No

EM18 RFID Reader 1 No

RFID Tag 1No (your required no)

LED Red, Green & Yellow each 1 No

Wire required legnth

Android app download from below link

https://drive.google.com/file/d/1qHocOYj0XdJPhKepeiy6cKMNSKDOO9Ci/view?usp=sharing

Arduino Program

/*RFID Based Smart Traffic Signal for Ambulance

by Aakaar Lab*/

int yellow_led=11,red_led=12,green_led=10,count=0,countp;

char*rfid_id[]={"270021BEBE06","270021BCFE44"};

char* names[]={"Ambulance-1","Ambulance-1"};

int presence[2];

void setup()

{

Serial.begin(9600);

pinMode(yellow_led,OUTPUT);

pinMode(red_led,OUTPUT);

pinMode(green_led,OUTPUT);

}

void loop()

{

int i;

char response[12];

int ch;

delay(200);

signalchange();

if(Serial.available()>0)

{

i=0;

do

{

while(Serial.available()<=0);

response[i]=Serial.read();

Serial.print(response[i]);

i++;

}while(i<12);

response[i]='\0';

if(strcmp(response,rfid_id[0])==0)//User1 rfid received

{

digitalWrite(red_led,LOW);

digitalWrite(green_led,HIGH);

}

else if(strcmp(response,rfid_id[1])==0)//User2 rfid received

{

digitalWrite(red_led,LOW);

digitalWrite(green_led,HIGH);

}

delay(5000);

} if(countp==1)

{count++; }

if(countp==0)

{count--; }

}

void signalchange()

{

if(count==0)

{

digitalWrite(green_led,LOW);

digitalWrite(yellow_led,HIGH);

delay(1000);

digitalWrite(yellow_led,LOW);

digitalWrite(red_led,HIGH);

countp=1; }

else if(count==50)

{ digitalWrite(red_led,LOW);

digitalWrite(yellow_led,HIGH);

delay(1000);

digitalWrite(yellow_led,LOW);

digitalWrite(green_led,HIGH);

countp=0;

}

}

Category: Electronics