The railway crossing accidents are increasing day by day due to human-manned railway crossings. Lives are at stake and we cannot keep doing this any- more. we need a much more reliable and accurate system to operate railway gates.

We are here to present an automatic railway gate control system using RFID and NODEMCU module. By using these we can fully automate the process and thus maybe reduce railway accidents to a greater extent. Here the process is a two-step verification process where only when the button has been pressed by the client(loco pilot), which sends a signal to the server side announcing the approach of the train followed by the scanning of the RFID tag by the reader, fixed at a particular distance from the nearby level cross, will the gates be closed/open. This is the basic essence of the project

Problem Statement

Railway transportation is the most common means of transportation for almost every individual in our country. The risks of this mode of transport cannot be overlooked either. There are many cases of railway accidents almost on a daily basis. Hence the need for a much more reliable and safer system to operate the railway gates. The railway gates are closed and opened manually by persons at labour.

But this is not effective all the time, because humans tend to make mistakes and we cannot rely on them completely Hence the introduction of an automated railway gate using iot seemed to be a good solution to this problem at hand.

GENERAL BACKGROUND

Railways being one of the safest and cheapest modes of transportation are preferred over all the other means of transport. So, it is essential to maintain and improve the current level of safety. A safe railway is more efficient and also a more attractive transport choice. Railway safety is a crucial aspect of rail operation over the world. When we go through newspapers, we come across many railway accidents occurring at different railway level crossings and many people are dying. The project proposes the design and implementation issues of an automated railway gate controlling system.Here the process is a two step verification process where only when the button has been pressed by the client(locopilot), which sends a signal to the server side announcing the approach of the train followed by the scanning ofthe RFID tag by the reader,fixed at a particular distance from the near by level cross, will the gates be closed/open..

SYSTEM DESIGN

Step 1 : DESIGN CIRCUIT ( FOLLOW THE FIGURE BELOW )

a

Components Required:

Hardware

Jumper wire, Bread Board, Arduino Uno, RFID Tag, RFID Reader, LED Green and Red, Buzzer, NodeMcu ESP-8266, Servo Motor

Step 2 : Run The Software Code:

for Client:

//Client

#include <SPI.h>

#include <ESP8266WiFi.h>

byte ledPin - 2;

const int buttonPin = 5; // the number of the pushbutton pin

int buttonState = 0;// variable for reading the pushbutton status

char ssid[] = "sri"; // SSID of your home WiFi

char pass[] = "srilakshmiii";// password of your home WiFi

unsigned long askTimer = 0;

IPAddress server (192,168,43,93);// the fix IP address of the server

WiFiClient client

;

IPAddress ip(192, 168, 43, 29); // IP address of the server

IPAddress gateway (192,168,0,1); // gateway of your network

IPAddress subnet(255,255,255,0); // subnet mask of your network

void setup() {

Serial.begin(115200);// only for debug

Wifi.config(ip, gateway, subnet);// forces to use the fixIP

WiFi.begin(ssid, pass);// connects to the WiFi router

while (WiFi.status() I = WL_CONNECTED) {

Serial.print(".");

delay(500);

}

Serial.print("Connected to wifi");

Serial.print("\n'); Serial.print("SSID: ");

Serial.println(WiFi.SSIDO);

pinMode(ledPin, OUTPUT);

pinMode(buttonPin, INPUT_PULLUP);

}

int condition = 0;

void loop() {

buttonState = digitalRead(buttonPin); if (buttonState == LOW){

condition = !condition;

}

if (condition == 1) {

Serial.println("Button Pressed");

client.connect(server, 80); // Connection to the server

client.println("button_pressed"); // sends the message to the server

} else {

Serial.println("Not Pressed");

client.connect(server, 80); // Connection to the server

client.println("no"); // sends the message to the server

}

delay(500); // client will trigger the communication after two seconds

}

for Server:

//Server

#include <SPI.h>

#include <ESP8266WiFi.h>

byte ledPin 2;

byte outPin = 5;

char ssid[] "sri"; // SSID of your home WiFi

char pass[] = "srilakshmiii"; // password of your home WiFi

WiFiServer server (80);

IPAddress ip(192, 168, 0, 80);// IP address of the server

IPAddress gateway (192,168,43,42);// gateway of your network

IPAddress subnet (255,255,255,0);// subnet mask of your network

void setup() {

Serial.begin(115200);// only for debug

WiFi.config(ip, gateway, subnet);// forces to use the fix IP

WiFi.begin(ssid, pass); // connects to the WiFi router

while (WiFi.status() != WL_CONNECTED) {

Serial.print(".");

delay(500);

}

server.begin();// starts the server

Serial.println("connected to wifi");

Serial.print("SSID: "); Serial.println(WiFi.SSID());

pinMode(ledPin, OUTPUT);

pinMode(outPin, OUTPUT);

}

String statusIn = "no";

void loop() {

WiFiClient client = server.available();

if(statusIn =="button pressed"){

Serial.println("Train is Arriving");

} else {

Serial.println("Error");

}

if (client) (

Serial.print("Server");

if (client.connected()) {

Serial.print("CLIENT CONNECTED");

String request = client.readstringuntil('\r');

statusIn request;

}

client.stop();

for RFID :

USER INTERFACE

Initially, the loco pilot has to press the button provided to them. This in turn sends a signal to the receiving station where the operator receives a message ”THE TRAIN IS ARRIVING.” Once the message is received the client and receiver modules are connected. The initial step of message verification is completed now. the RFID Reader is activated and reads the RFID Tag when the train passes by it. This being the second verification step will initiate the closing of the railway gates. Once the train has passed the gate is opened once the delay time is up.

Block Diagram:

Flowchart

Final Product