projct report (traffic lights)

Download Projct Report (Traffic Lights)

Post on 27-Dec-2015

56 views

Category:

Documents

5 download

Embed Size (px)

DESCRIPTION

Inhouse training report on Traffic light controller

TRANSCRIPT

Automatic Traffic Lightl Report

In-House Summer Training ReportOnAUTOMATIC TRAFFIC LIGHT MODEL

Submitted in partial fulfilment of the requirements for the award of degree ofBACHELOR OF TECHNOLOGYInInstrumentation and Control Engineering

Mentors: Submitted By:- Mr. VIVEK JANGHRA Shashank Pandey (05210403011) Mrs. AMAN SETIA Srijan Upadhyay (05410403011) Mr. VIJAYANAND Akhilesh Thapliyal (07310403011) Mrs. VINI TUTEJA

Department of Instrumentation & Control EngineeringAMITY SCHOOL OF ENGINEERING & TECHNOLOGYGGS Indraprastha University, New Delhi

CERTIFICATE

This is to certify that the project report entitled Automatic Traffic Lights Model submitted by-SHASHANK PANDEY 05210403011SRIJAN UPADHYAY 05410403011AKHILESH THAPLIYAL 07310403011has been accomplished under my guidance.This report is submitted for partial fulfilment of award of degree of Bachelor of Technology in Instrumentation and Control Engineering at Amity School of Engineering and Technology, affiliated to Guru Gobind Singh Indraprastha University, New Delhi.

Date: 31 July, 2013 Mentors: Mrs. VINI TUTEJA Mr. VIVEK JHANGRA Mrs. AMAN SETIA Mr. VIJAYANAND KUMAR ICE Department Amity School of Engineering & Technology Bijwasan, New Delhi- 61

2

ACKNOWLEDGEMENT

First of all, I would like to thank my project guide Mrs. VINI TUTEJA whose constant guidance and support throughout my entire training helped me in completing this project. I would also like to thank Mrs. PINKY NAYAK, H.O.D, ICE, ASET for her support and encouragement.Sincere thanks to my training coordinator, Mr.VIJAYANAND KUMAR for presenting me, not only with this concept but also giving their valuable guidance which was essential for compilation of this report. Special thanks to our director Dr. REKHA AGGARWAL for providing us the infrastructure such as laboratory and apparatus, equipments which helped in completion of my project.I would also like to thank to Mr. VIVEK JHANGRA for the help he lent me in the form of new ideas, as well as her constructive criticism, which helped us greatly along the way.The Lab assistant in the laboratories of Amity School of Engineering & Technology Mr. KAILASH JOSHI and Mr. SANJEEV also need to be acknowledged for their cooperation and providing us a convenient environment to work in.

Shashank Pandey (052)

Srijan Upadhyay (054)

Akhilesh Thapliyal (073)

ABSTRACT

This automated traffic signal controller can be made by suitably using the 555 Timer and 4017 Counter. This project operates red, amber and green LEDs in the correct sequence for a single traffic light. The time taken for the complete red - green - amber sequence can be varied from about 7s to about 1 minute by adjusting the 100K preset. Some amber LEDs emits light that is almost red so you may prefer to use a yellow LED.The 555 astable circuit provides clock pulses for the 4017 counter which has ten outputs (Q0 to Q9). Each output becomes high in turn as the clock pulses are received. Appropriate outputs are combined with diodes to supply the red, amber and green LEDs. The red LED is connected to the 4 outputs (Q0-Q3) using 4 diodes (D1-D4), which makes it light longer than amber and 2nd green (the right turn) LEDs whereas the 1st green LED is connected to 5 outputs (Q4-Q8) using 5 diodes (D5-D9) which makes it light longest whereas the 2nd green LED is connected to 3 outputs using 3 diodes (D11- D13) which makes it light longer than amber but less than red and 1st green LED. The amber LED is connected to just 1 output (Q9) only using 1 diode (D10) which makes it light shortest just for (5-6 sec).This project uses a 555 astable circuit to provide the clock pulses for the 4017 counter.Its main features are:-1. The controller assumes equal traffic density on all the roads.2. In most automated traffic signals the free left-turn condition is provided throughout the entire signal period, which poses difficulties to the pedestrians in crossing the road, especially when the traffic density is high. This controller allows the pedestrians to safely cross the road during certain periods.3. The controller uses digital logic, which can be easily implemented by using logic gates.4. The controller is a generalized one and can be used for different roads with slight modifications.5. The control can also be exercised manually when desired. The time period for which green, yellow and red traffic signals remain on (and then repeat) for the straight moving traffic is divided into eight units of 8 seconds each.SOFTWARES USED: 1. Cadence OrCAD 9.2 (for Schematic and Simulation of circuit)2. NOVARM DIPTRACE (for PCB layout)TABLE OF CONTENTS

CHAPTER NO. TITLE PAGE CERTIFICATE I ACKNOWLEDGEMENT II ABSTRACT III LIST OF FIGURES/TABLES IV LIST OF SYMBOLS V

1. INTRODUCTION 101.1 HISTORY OF TRAFFIC LIGHTS 101.2 TECHNOLOGY 11 2. THE PROJECT 13 2.1 CIRCUIT DIAGRAM 13 2.2 PCB LAYOUT 14 2.2.1 3D LAYOUT 15

LITERATURE REVIEW: - 3. COMPONENTS USED 16 4. ABOUT THE COMPONENTS 17 4.1.1 RESISTOR 17 4.1.2 DIODE 19 4.1.3 CAPACITOR 21 4.1.4 PRESET 23

CHAPTER NO. TITLE PAGE 4.1.5 LED 25 4.1.6 IC 555 TIMER 31 4.1.7 IC 4017 DECADE COUNTER 38 4.1.8 POWER SUPPLY 41 4.1.9 PRINTED CIRCUIT BOARD 435. WORKING PRINCIPLE 476. ADVANTAGES OF TRAFFIC LIGHTS 487. DISADVANTAGES OF TRAFFIC LIGHTS 488. APPLICATIONS 499. FUTURE SCOPE 4910. REFERENCES 5011. APPENDICES 51-72 LIST OF FIGURES/ TABLESFigure No.NamePage No.

1Automatic Traffic Light Model 9

2PCB Layout 14

33D Layout 15

4Resistor 17

5Capacitor 21

6Preset 23

7LED 25

8LEDs Working 26

9IC 555 TIMER 31

10PIN configuration of IC 555 34

11Graph showing counting action of IC 4017 38

12PIN configuration of IC 4017 39

13AC source 41

14Printed circuit Board 43

Table no.Table NamePage no.

1.Resistor Colour codes 18

2.Colours and materials of LEDs 28

LIST OF SYMBOLSS.NoComponent Symbol

1Resistance

2.Diode

3.Capacitor (Polar)

4Preset

5LED

AUTOMATIC TRAFFIC LIGHT MODEL

Fig.1

1. INTRODUCTION

The traffic signals are used to control the flow of vehicles. In recent years the need of transportation has gain immense importance for logistics as well as for common humans. This has given rise to number of vehicles on road. Due to this reason traffic jams and road accidents are a common sight in any busy city. Traffic signals provide an easy, cheap, automated and justified solution to the road points where the vehicles may turn t