SIGNALLING
PROJECT REPORT
SUBMITTED IN PARTIAL FULFILLMENT
OF THE REQUIREMENT FOR THE DEGREE OF
BACHELOR OF TECHNOLOGY
IN
ELECTRONICS AND COMMUNICATION ENGINEERING
BY
S. HEMA LATHA (06261A0448)
RUPA DEVI
(07265A0402)
K.YASWANTHI
(07265A0406)
Department of Electronics and Communication Engineering
MAHATMA GANDHI INSTITUTE OF TECHNOLOGY
(AFFILIATED TO JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY,
HYDERABAD, A.P)
Chaitanya Bharathi P.O., Gandipet, Hyderabad-500 075
2010
1
ABSTRACT
The railway gate is to be controlled so that the road traffic is to be predicted .The railway gate is to be closed when a train is passing by the way. The opening and closing of the gate is to be done using stepper motors and this stepper motor is controlled by micro controller. The signaling of the train is also controlled depending upon the gate position. Only when gate is closed the green signal is otherwise red signal. So in this project the railway signaling includes the gate control is done using microcontroller. The automatic opening and closing of the gate and also the signaling which depending on the gate position that will be controlled by the microcontroller. 2
TABLE OF CONTENTS
CERTIFICATE FROM ECE DEPARTMENT
ACKNOWLEDGEMENT
i
ABSTRACT
ii
LIST OF FIGURES
v
1. INTRODUCTION
1
1.1 Aim of the project
3
1.2
Methodology
3
2. BLOCK DIAGRAM DESCRIPTION
4
2.1. 555 Timer
5
2.1.0. Functional block diagram of 555 timer
5
2.1.1. Block diagram of 555 timer
6
2.1.2. Pin diagram of 5555 timer
6
2.1.3. Description of pins
7
2.2. IR Receiver
8
2.3. Microcontroller
10
2.3.0. Description of 89S52
10
3
2.3.1. Features of microcontroller
11
2.3.2. Block diagram of microcontroller
12
2.3.3. Pin diagram of microcontroller
13
2.3.4. PIN DESCRIPTION
14
2.4. Buzzer alarm
18
2.5. Power supply
18
2.5.0. Transformer
19
2.5.1. Rectifier
20
2.5.2. Smoothing
21
2.5.3. Regulators
22
3. BASIC IDEA
23
3.1 Gate