INTRODUCTION

Present, petrol pumps are time consuming and require more manpower.

To place petrol stations in distant area it is very costly .

Problem sorted out by the use of unmanned petrol pump.

The payment is done by electronic clearing system.

These petrol stations easily monitor with the video capturing and alarming system over the time by a central control unit.

PICTURE OF UNMANNED PETROL PUMP

FEATURES

Today’s consumers are more mobile and more

demanding than ever.

The world’s most consumer-friendly fuel

pump.

Centralized control unit

Security from the outside

DisplayCard Reader/OptionalPrinter/OptionalIntelligent MeterProportional ValveCoupling Connected Drive MechanismNozzle and SwivelSubmersible Pump

HARDWARE REQUIREMENT

BLOCK DIAGRAM

ELECTRONIC COMPONENTS

Rectifier 1N4007Transformer 909( 1 Amp)Serial port converter MAX 232Microcontroller PIC 16F72Opto-coupling MOC304112V Collector 4N35SCR BT136Power Darlington 13U407Solenoid valve

INTERNAL DIAGRAM OF ELECTRONIC COMPONENT

OUTDOOR NETWORK

RECTIFIER 1N4007

Rectifier is a device which convert AC to DC.

This is a FULL WAVE RECTIFIER.

In this rectifier two diode are selected through bridge combination.

TRANSFORMER

Transformer is the device which transfer energy from one circuit to another by magnetic flux.

This is a step down transformer.

In Step down transformer Np>Ns.

MICROCONTROLLER PIC16F72

It has 3 I/O ports.It has 22 I/O pinsIt has 8 bit ADC.It has 8 bit interrupt

signal.It has FLASH

MEMORY.It’s frequency range is

from 4MHz-20MHz.It is widely used in

inverters.It is economic

SERIAL PORT CONVERTER MAX 232

It is used to interface between PC and micro-controller.

It has TWO serial input and output from PC.

It has TWO input and output to micro-controller.

It is TRANSRECEIVER.

OPTO-COUPLER MOC 3041

It has LED and photo-detector.

It transfer signal over optical conductivity.

It work as isolator between micro-controller and AC supply.

It prevent from BACK CURRENT from AC supply.

SCR BT136

SILICON CONTROLLED RECTIFIER

It work as a switch/relay

intended for use in applications requiring high bidirectional transient and blocking.

Typical applications include motor control.

ISOLATOR 4N35

Isolation Interfaces with

common logic families

It has 6-pin package Lead-free componentIt optically transmit

data to anther end

POWER DARLINGTON BU407

It is N-P-N Transistor combination.

It is combine parallel form

It amplifies the voltage

It is three pin device

SOLONOID VALVE

It is a device which convert electrical energy to mechanical energy .

It is used for fluid control.

It is a electromechanical valve.

It is 3 port device.

SOFTWARE REQUIREMENT

Programming in CProgramming in Visual Basic

PROGRAMMING IN HI-TECH C

It is used for the programming of the micro-controller

This software is made by Hi-tech incorporation.

VISUAL BASIC

Visual Basic is a programming language.

It provide graphics enable run setup.

Graphics used for easy access for USERS.

It makes a setup USER-FRIENDLY.

PROBLEM

Large installation cost.

Awareness about UNMANNED PETROL PUMP.

If network fails then whole system will collapse.

FUTURE APPLICATION

UNMANNED PETROL STATION WAS REQUIRED FOR YEARS TO FULFILL REQUIREMENT OF CONSUMERS OVER THE WIDE AREA.

IT IS NOT LIMIT ED TO PETROL BUT AVAILABLITY OF CONSUMERS GOODS AT REMOTE AREA OR DISTINCT AREA.

IT MAKES THE WORLD MORE COMFORTABLE AND MORE SAFER.