Design And Construction Of A Remote Control For 3Kva Patrol Generator

ABSTRACT

The paper presents the design and construction of an infrared remote controlled petrol generator, which is a device that enables the user to operate or control the ON and OFF supplied of a generator from approximately 5 to 10 meters away. The remote transmits a beam of light using an infrared light emitting diode; this light is picked and decoded by the receiver unit (Photodiode). The receiver only activates when it receives the beam of light, there are no accidental activation. The system was broken down into simpler functional parts namely: The transmitter stage, the detector (photo transistor) stage, the receiver stage and the relay stage. Details of the stages are described in the paper.

TABLE OF CONTENTS

TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

TABLE OF CONTENT

CHAPTER ONE

1.1      INTRODUCTION

1.2      OBJECTIVE OF THE PROJECT

1.3      SIGNIFICANCE OF THE PROJECT

1.4      SCOPE OF THE PROJECT

1.5      LIMITATION OF THE PROJECT

1.6      APPLICATION OF THE PROJECT

1.7      PROJECT ORGANISATION

CHAPTER TWO

2.0      LITERATURE REVIEW

2.1      REMOTE CONTROL TECHNOLOGY

2.2      INFRARED, LINE OF SIGHT AND OPERATING ANGLE

2.3      REMOTE CONTROL TECHNOLOGIES REVIEWED

2.4      OVERVIEW OF STARTER MOTOR

2.5      HISTORICAL BACKGROUND OF STARTER MOTOR

2.6      TYPES OF ELECTRIC STARTER

CHAPTER THREE

3.0      CONSTRUCTION METHODOLOGY

3.1      BLOCK DIAGRAM OF THE SYSTEM

3.2      BLOCK DIAGRAM EXPLANATION

3.3      INFRARED REMOTE CONTROL SWITCH CIRCUIT COMPONENTS

3.4      SYSTEM CIRCUIT DIAGRAM

3.5      CIRCUIT EXPLANATION

3.6      DISCRETION OF COMPONENT USED

CHAPTER FOUR

RESULT ANALYSIS

4.0      TESTING AND RESULT ANAYLSIS

4.1      INSTALLATION OF THE COMPLETED DESIGN

4.2      CONSTRUCTION PROCEDURE AND TESTING

4.3      CASING AND PACKAGING

4.4      ASSEMBLING OF SECTIONS

4.5      INSTALLATION OF THE COMPLETED DESIGN

4.6      TESTING

4.7      ECONOMIC OF THE PROJECT

4.8      PROJECT EVALUATION

CHAPTER FIVE

5.0 CONCLUSION

5.1 RECOMMENDATION

5.2 REFERENCES

CHAPTER ONE

1.0                                                       INTRODUCTION

An engine-generator is the combination of an electrical generator and an engine (prime mover) mounted together to form a single piece of equipment. This combination is also called an engine-generator set or a gen-set. In many contexts, the engine is taken for granted and the combined unit is simply called a generator.

A petrol engine is an internal combustion engine with spark-ignition, designed to run on petrol (gasoline) and similar volatile fuels.

In most petrol engines, the fuel and air are usually pre-mixed before compression. The pre-mixing was formerly done in a carburetor, but now it is done by electronically controlled fuel injection, except in small engines where the cost/complication of electronics does not justify the added engine efficiency. The process differs from a diesel engine in the method of mixing the fuel and air, and in using spark plugs to initiate the combustion process. In a diesel engine, only air is compressed (and therefore heated), and the fuel is injected into very hot air at the end of the compression stroke, and self-ignites.

In addition to the engine and generator, engine-generators generally include a fuel supply, a constant engine speed regulator (governor) and a generator voltage regulator, cooling and exhaust systems, and lubrication system. Units larger about 3kW rating often have a battery and electric starter motor; very large units may start with compressed air either to an air driven starter motor or introduced directly to the engine cylinders to initiate engine rotation. Standby power generating units often include an automatic starting system and a transfer switch to disconnect the load from the utility power source when there is a power failure and connect it to the generator.

With the advancement in technology, new electrical protective devices with various levels of complexity have been designed, and different failures from these systems have been recorded. The design and construction of a reliable cost effective protective device, “the remotely controlled petrol generator switching unit” is to be used in connection with the generator starter motor. The primary aim of this work is to design a simple cost effective and reliable infrared controlled petrol generator which will automatically shut down or ON the engine from a distance. It is an Automatic Petrol Engine Control Module designed to automatically [remotely] or manually start and stop a petrol powered generator.

1.2                                          OBJECTIVE OF THE PROJECT

The objective of this work is build a device designed to automatically [remotely] start and stop a petrol powered generator / engine. The remote control is made up of a transmitter and a receiver (Photo detector). The transmitter transmits within the frequencies of 30 KHz and 60 KHz having a wavelength of about 950nm.

1.3                              SIGNIFICANCE OF THE PROJECT

Today, remote control is a standard feature on some consumer electronic and mechanical products including petrol generator set. This device allows the user to operate their generator set from a distance with having a physical touch of the generator switch. Even at night hour, this device reduces the risk of being attack by arm robbers when making attempt of going out to switch OFF or ON a generator set.

1.4                                          SCOPE OF THE PROJECT

Basically, a remote control operates in the following manner. A button is pressed; this completes a specific connection, which produces a Morse code line signal specific to that button. The transistors amplify the signal and send them to the LED, which translates the signal into infrared light. The sensor on the appliance (on the generator starter) detects the infrared light and response appropriately to the received signal or command via s relay.

1.5                               APPLICATION OF THE PROJECT

Apart from using this device to control generator ON and OFF mode, this device can also be used to control the power supply of appliances such as:

TV

DVD

Radio

Or any other mechanical device.

Remote control is also used for controlling substations, pump storage power stations and HVDC-plants. For these systems often PLC-systems working in the longwave range are used.

1.6                                          LIMITATION OF THE PROJECT

To operate this device becomes a problem when the remote is fault or whenever the battery of the remote runs down. This device made for gasoline generator with:

1. 3kva output power
2. Rated Frequency (HZ): 50 or 60
3. Fuel Consumption: (g/KW H): 330
4. Fuel tank capacity: 12.5 L
5. Start system: Electric Starter
6. Fuel Type: Gasoline

1.7                               PROJECT WORK ORGANISATION

The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:

Chapter one of this work is on the introduction to a remote controlled petrol generator. In this chapter, the background, significance, objective limitation and problem of remote controlled petrol generator were discussed.

Chapter two is on literature review of remote petrol generator. In this chapter, all the literature pertaining to this work was reviewed.

Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.

Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.

Chapter five is on conclusion, recommendation and references.