Design And Construction Of A Wireless Dc Motor Speed And Direction Control Using Radio Frequency

ABSTRACT

Wireless remote controlled dc motor explained in this project. Motor control through RF communication is a very interesting application and is widely used in robotics, electronics toys, automation systems etc. This topic covers the way DC motors can be driven by using the controls from a distant place. The controls are transferred from one end to another by employing an RF signal

 TABLE OF CONTENT

COVER PAGE

APPROVAL PAGE

DEDICATION

ACKNOWLEDGEMENT

TABLE OF CONTENT

CHAPTER ONE

• INTRODUCTION
• OBJECTIVE OF THE PROJECT
• PURPOSE OF THE PROJECT
• SIGNIFICANCE OF THE PROJECT
• LIMITATION OF THE PROJECT
• APPLICATIONS OF THE PROJECT

CHAPTER TWO

LITERATURE REVIEW

2.1      WIRELESS DC MOTOR SPEED CONTROL BACKGROUND

2.2      ENVIRONMENTAL CONSIDERATIONS FOR WIRELESS DC MOTOR CONTROL

2.3      REVIEW OF WIRELESS COMMUNICATIONS

2.4      TYPES OF WIRELESS COMMUNICATION

2.5      RADIO FREQUENCY TECHNOLOGY

CHAPTER THREE

DESIGN METHODOLOGY

3.1      BLOCK DIAGRAM

3.2      SYSTEM CIRCUIT DIAGRAM

3.3      SYSTEM OPERATION

3.4      CIRCUIT DESCRIPTION

3.5      POWER SUPPLY UNIT

3.6      POWER SUPPLY COMPONENTS

CHAPTER FOUR

RESULT ANALYSIS

4.0      CONSTRUCTION PROCEDURE AND TESTING

4.1      CASING AND PACKAGING

4.2      ASSEMBLING OF SECTIONS

4.3     TESTING OF SYSTEM OPERATION

4.4     COST ANALYSIS

 CHAPTER FIVE

5.1 CONCLUSION

5.2      RECOMMENDATION

5.3      REFERENCES

CHAPTER ONE

1.0                                                        INTRODUCTION

The speed and direction control of DC motor is very important for various kind of uses. Through all these years, there have been various attempts in finding different efficient solutions for the speed and direction control of the DC motor. History will recognize the vital role played by DC motors in the development of industrial power transmission systems. The DC machine was the first practical device to convert electrical power into mechanical power, and vice-versa in its generator form. Inherently straightforward operating characteristics, flexible performance and high efficiency encouraged the widespread use of DC motors in many types of industrial drive applications. DC motors have been long been the primary means of Electrical traction. DC motor is considered as a SISO system having torque/speed characteristics compatible with most mechanical loads. Hence, DC motors are always a good ground for advanced theories because the theory is extendable to other types of motors. Wireless communication is the transfer of information between two or more points that are not physically connected. Distances can be short, such as a few meters for television remote control, or as far as thousands or even millions of kilometers. Among the various wireless technologies like IR (Infra Red), Bluetooth and WLAN, we have chosen RF technology, the main reason being it has a very long range of 3 KHz-300GHZ. It is also not affected by any obstructions. Commercial applications for wireless are door announcers, security and access systems, gate control, remote activation, score board and paging systems. In this project we try to provide a similar approach by introducing the concept of radio frequency technology.

1.2                                             OBJECTIVE OF THE PROJECT

The objective of this work is constructing a device that will control the speed and direction of a dc motor wirelessly. This work is made up of major components: an input system for the transmitter, a wireless transmitter, a wireless receiver, and a motor controller connected to the receiver.

1.3                                              PURPOSE OF THE PROJECT

The purpose of this project is to build a system that can independently and wirelessly control DC motor speed. 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.

1.4                               SIGNIFICANCE OF THE PROJECT

Speed and direction control from remote place

Speed level and direction display on LCD

Reliable and Easy to operate

1.5                                           LIMITATION OF THE PROJECT

1. Wireless communications are limited by the range of the transmitter.
2. Cost of wireless communication system and components are high.
3. When transmitting data, users must sometimes send smaller bits of data so the information moves more quickly. The size of the device that’s accessing the information is also still an issue.
4. Many applications need to be reconfigured if they are going to be used through wireless connections.
5. Most client/server applications rely on a persistent connection, which is not the case with wireless.
6. Since radio waves travel through the atmosphere they can be disturbed by electrical interferences (such as lightning) that cause static.

1.6                               APPLICATIONS OF THE PROJECT

ƒ

Industries are using RF solutions for monitoring, process, control, inventory tracking, data links and bar code reading devices. Commercial wireless applications such as door announcers, security and access systems, gate control, remote activation, score board and paging systems.

Automotive companies employing RF for wireless remote control, remote keyless entry and safety applications.

Consumer products including electronic toys, home security, gate and garage door openers, intercom, fire and safety systems and irrigation controllers

Medical products like patient call and monitoring, handicap assistance device, surgery communication system, remote patient data logging and ECG monitor