This document describes a project to automatically control a railway gate using a microcontroller. The system uses a vibration sensor to detect when a train is approaching, which triggers an alarm and closes the gate using a stepper motor. An AT89C52 microcontroller is used to manage the control system and avoid accidents at unmanned railway crossings. The hardware components include the microcontroller, vibration sensor, stepper motor, motor driver, and buzzer. The software used includes Keil IDE and Proteus for circuit simulation. The project aims to provide accurate train detection and automatic gate operation for human safety without requiring human control of the gates.

1. BY:
D.SAIKRISHNA
A.NAVEEN KUMAR
K.SAIKOMAL
O.PRALAYIKA
K.UMA

2. ABOUT PROJECT:
 The objective of this project is to manage the control
system of railway gate using the microcontroller.
 When train arrives at the sensing point alarm is
triggered at the railway crossing point so that the
people get intimation that gate is going to be closed.
 The model of railway track controller is designed by
using 8952 µcontroller to avoid railway accidents.

3. REQUIREMENTS TO DESIGN EMBEDDED
PROJECT:
 SOFTWARE
 HARDWARE
SOFTWARE USED:
 Keil IDE
 Proteus(circuit simulation)

4. HARDWARE COMPONENTS:
 AT 89C52 µcontroller
 Vibration sensor
 Stepper Motor
 L293D motor driver ic
 Buzzer
 LCD

5. GENERAL DIAGRAM:

6. BLOCK DIAGRAM:

7. AT89C52 µCONTROLLER:
 The AT89C52 is a low-power, high-performance CMOS
8-bit µcontroller
 8K bytes of Flash programmable and erasable read only
memory (PEROM)
 With ram 256 Bytes
 1000 Write/Erase cycles which means that it can be erased
and programmed to a maximum of 1000 times

8. STEPPER MOTOR (L293D):
 The stepper tutorial deals with the basic final stage drive
circuitry for stepping motors.
 This circuitry is centered on a single issue, switching the
current in each motor winding on and off, and controlling
its direction.

9. VIBRATION SENSOR:
 An accelerometer is a device that measures the vibration
 The force caused by vibration or a change in motion
(acceleration) causes the mass to "squeeze" the
piezoelectric material which produces an electrical charge.
 It is proportional to the force exerted upon it.

10. ADVANTAGES:
 Accident avoidance
 Human safety
 Accurate service
 With out human interface

11. CONCLUSION:
 The accidents are avoided at places where there is no
human to manage the railway crossing gates.
 Here we use the stepper motor to open and close the gates
automatically when it rotates clockwise or anticlockwise
direction to operate the gate automatically.

12. ANY QUERIES?