This work is titled design and construction of automatic or remote controlled gate. Remote control gate is a technology that involves using remote to control a gate. This device uses remote to control the automatic closing and openning a gate.
A remote-control gate is a handy little electronic device that makes it possible to get into the garage without leaving the car or heaving up the heavy door yourself. The opener remotely sends an infrared or IR signal to a receiver that triggers a switch, prompting an electric motor to open or close the garage door. Before any garage door remote works correctly it must be within the specified range of its IR signal-sending strength. If it is within range but still does not work, there are ways to fix it.
The circuit was designed, and developed using pulse width modulation (PWM) which is generated using 8051 microprocessor. PWM method was used to vary the speed of the DC motor. To make it, IR transmitter and IR sensor was used. There are two sections in the circuit: (1) PWM generator with IR modulator and (2) IR receiver and motor driver. The transmitter generates PWM wave of 50hz (20ms) and modulates it over 38KHz frequency. The IR sensor on receiver side will demodulate the PWM wave and drives the DC motor. This work is aimed at constructing a remote control gate using 8051 microprocessor.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT
CHAPTER ONE
- INTRODUCTION
- AIM/OBJECTIVE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- SCOPE OF THE PROJECT
- LIMITATION OF THE PROJECT
- APPLICATION OF THE PROJECT
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW OF THE PROJECT2.1 REVIEW OF TYPES OF GATE OPERATOR
2.2 REVIEW OF TYPES OF GATE OPERATOR
2.3 REVIEW OF HISTORY OF REMOTE CONTROL
2.4 DESCRIPTION OF AN ELECTRIC MOTOR
2.5 APPLICATIONS OF ELECTRIC MOTOR
2.6 TYPES OF MOTOR CONTROLLERS
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY3.1 BLOCK DIAGRAM OF THE SYSTEM
3.2 CIRCUIT DIAGRAM OF THE SYSTEM
3.3 CIRCUIT OPERATION OF THE SYSTEM
3.4 CIRCUIT DESCRIPTION OF THE SYSTEM
3.5 LIST OF COMPONENETS USED
3.6 POWER SUPPLY UNIT
CHAPTER FOUR
4.0 RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING
4.2 ASSEMBLING OF SECTIONS
4.3 CONSRUCTION OF THE CASING
4.4 TESTING
4.5 ECONOMICS OF THE PROJECT
4.6 PROJECT EVALUATION
CHAPTER FIVE
5.1 CONCLUSIONS
5.2 RECOMMENDATION
5.3 REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
Remote control gate is a technology that involves using remote to control a gate. This device uses remote to control the closing and opening of a gate automatically.
A remote-control gate is a handy little electronic device that makes it possible to get into the garage without leaving the car or heaving up the heavy door yourself. The opener remotely sends an infrared or IR signal to a receiver that triggers a switch, prompting an electric motor to open or close the garage door. Before any garage door remote works correctly it must be within the specified range of its IR signal-sending strength. If it is within range but still does not work, there are ways to fix it.
The circuit was designed, and developed using pulse width modulation (PWM) which is generated by a microprocessor. PWM method was used to power the DC motor. To make it, IR transmitter and IR sensor was used. There are two sections in the circuit: (1) PWM generator with IR modulator and (2) IR receiver and motor driver. The transmitter generates PWM wave of 50hz (20ms) and modulates it over 38KHz frequency. The IR sensor on receiver side will demodulate the PWM wave and drives the DC motor.
The pulse width modulation can be achieved in several ways. In the present project, the PWM generation is done using 8051 series MC. In order to have better speed regulation and the required pulse that will move the motor, it is required to have a feedback from the motor. The feedback can be taken either by using a tacho-generator or an optical encoder or the back EMF itself can be used .In present project, we implemented the feedback by using the EMF of the armature as the feedback signal. Speed control means intentional change of drive speed to a value required for performing the specific work process. This concept of speed control or adjustment should not be taken to include the natural change in speed which occurs due to change in the load on the shaft.
1.1 OBJECTIVE OF THE PROJECT
A remote-control gate is a handy little electronic device that makes it possible to get into the garage without leaving the car or heaving up the heavy door yourself.
The objective of this work is to design a device that will control the closing and opening of a gate automatically using 8051 series MC.
1.2 SIGNIFICANCE OF THE PROJECT
a) Rapid Results – It is quick and easy to configure, giving results in seconds
b) Reliability and Ease of Use – It produces high quality results with high repeatability allowing for
c) Rapid and reliable decision making
d) Rugged and Reliable – It is a circuit with outstanding durability for field use
e) Simple User-friendly interface
1.4 PURPOSE OF THE PROJECT
The purpose of this project is to build a system that can independently and wirelessly control the opening and closing of a gate. To do this, the system will need 4 core components: an input system for the transmitter, a wireless transmitter, a wireless receiver, and a motor controller connected to the receiver.
1.5 LIMITATION OF THE PROJECT
1. If the remote batteries get low it can affect the operation of the system
2. It is not possible to interface keyboard and display.
3 The 8051 microcontroller gulps power and so it heats up.
4. The 8051 microcontroller is not CMOS compatible, only TTL compatible.
1.6 SCOPE OF THE PROJECT
The proposed system is concerned with the design and construction of a microcontroller based remote control automatic gate. The proposed system monitors and controls a gate; we employed a microcontroller that accepts data value from the interfacing circuit and take an instant decision.
The proposed system on sensing an interruption from an infrared receiver, opens and closes the gates, also it can deny an entrance or exit from the gate by just pressing of a button. These are the constituents of the automatic gate system; a sensor unit, a trigger circuitry, microcontroller module, gate control unit and a power supply unit.
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 remote control gate. In this chapter, the background, significance, objective limitation and problem of remote control gate were discussed.
Chapter two is on literature review of remote control gate. 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.
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