Automatic Car Parking System

SUBMITTED BY

Himanshu Kumar

1.Introduction2.Block Diagram of The Project

3.Power Supply

4.Microcontroller(AT89C51)5.Display Unit6.Intruder7.Stepper Motor8.Aplication & Advantage9.Conclusion

CONTENTS

In the project “Car Parking System” we have shown the concept of an automatic car parking system which will automatically sense the entry & exit of cars through the gate and then display the no. of cars in the parking lot.

The sensing of entry and exit of cars is done with the help of Infrared transmitters and receivers.

Introduction:

Block Diagram of The Project

Powered by +5V & +12V supply Current consumption 0.45mA for

Microcontroller circuit, 0.75mA for switching circuit, 200mA for amplification circuit

Automatic detection of any incoming/outgoing car

Automatic opening and closing of entry gate User interface using LCD and switches Always display the number of cars present

in the Parking Lot

Features of Project:

Power supplies are designed to convert high voltage AC mains to a suitable low voltage supply for electronics circuits and other devices. A power supply can be broken down into a series of blocks, each of which performs a particular function.

For example a 5V regulated supply:

Power Supply

Transformer – steps down high voltage AC mains to low voltage AC.

Rectifier – converts AC to DC, but the DC output is varying.

Smoothing – smoothes the DC from varying greatly to a small ripple.

Regulator – eliminates ripple by setting DC output to a fixed voltage.

Each of the block has its own function as described below

AT89C51 microcontroller used in this project.

It is MTP(Multi Time Programmable) IC. Hardware Featurea) 40 pin ICb) 4Kb of Flashc) 128Bytes of RAMd) On Chip Oscillator and Clock Circuitrye) Two 16-Bit Timer/Counter

Microcontroller

The LCD, which is used as a display in the system, is LMB162A. The main features of this LCD are: 16*2 display, intelligent LCD, used for alphanumeric characters & based on ASCII codes.

The LCD containsa) 8-pins are used as 8-bit data I/O.b) 3-pins are used as control lines.c) 2-pins are used as backlight & LCD

voltage.d) 2-pins in backlight & LCD ground.e) 1-pins is used for contrast change

Display Unit

The 555 timer is used in the Infrared transmitters and receivers. At the transmitter it is used to produce a pulse of 38 kHz. This pulse is then fed to the Infrared LED so that it produces bursts of Infrared energy at the rate of 38 kHz. The reason of transmitting frequency being this much particular value is that the Infrared receiver (i.e. TSOP 1738) works at maximum efficiency when the Infrared rays falling on it, are of 38 kHz.

Intruder

The stepper motor is an electromagnetic device that converts digital pulses into mechanical shaft rotation.

The shaft or spindle of a stepper motor rotates in discrete step increments when electrical command pulses are applied to it in the proper sequence.

Stepper Motor

1) This project can be used for parking system in any shopping mall, multiplex

2) Can be used for industries, commercial offices and educational institutes.

Applications and Advantages:

By the end of this project

Connections and testing in Proteus is studied. Coding and compiling of a C program in Keil Vision

software is studied. Hardware implementation by connecting Schematic

and making Board layout EAGLE is done successfully. The hardware kit is tested successfully by

embedding the C program – Hex file in the AT89C51 Microcontroller.

The operation of microcontroller is analysed in simulation and practically.

Conclusion