Design_and_implementation_of_lighting_switching_control_system_(interface).

Thesis Overview

<p> INTRODUCTION<br>1.1 BACKGROUND OF THE STUDY<br>Traditionally, high control in home and office environments takes place through<br>switches (on/off), deals and sliders (dimmers) and sometimes motion sensors.<br>These controls can be incorporated in the built environment such as walls, or<br>attached to lights that people place themselves (desk lamps, bed side lights). This<br>often leads to a jumble of controls each with their own location, interaction style,<br>and focus.<br>This project is a demonstration of how a PC can be used as a control signal<br>generation subsystem capable of generating programmable control signals for<br>power equipment. Early studies reveal that using PC for power management was<br>often fou7nd to be up to 25% more than energy star compliant methods.<br>However, recent assessments have found higher rates, and was estimated that<br>for power management.<br>Switching control is a good replacement for conventional pneumatic or Electro<br>chemical high voltage AC control. This equipment is capable of not only control<br>but energy management and system diagnostic functions. The PC control in<br>inherentlyhas more accurate control because it reduces maintenance and<br>recalibration problems common with pneumatic and mechanical systems.<br>It offers other unique advantages like subsystem coordination, optimum start,<br>diversity analysis and retrofit identification.<br>2<br>This design begins with the fact that a computer is needed to light bulbs of high<br>AC rating. This immediately suggests that an interface of the PC is needed to<br>handle the mismatch in voltage and currents between the PC and bulbs.<br>Secondly the control data from the PC program are logic levels in serial format<br>and at high frequency. This again means that the interface should understand the<br>protocol of communication and convert it to the necessary parallel control singed.<br>Due to lack of resources, the project will not be real but simulated. This system<br>will represent for more than just manual on/off control. The system comprises of<br>two major components, output device, and input device. Output devices work<br>behind the scenes to control the lights by switching them off or on. Input device<br>are the switcher i.e. the button or sensors.<br>1.2 PROBLEM STATEMENT<br> No prior information whether a bulb is dead or not<br> There is always a problem of one or two poles using one switch. That is each<br>pole with a switch which could amount to lots of expenses. Each pole with<br>their own switch and location.<br> It consumes ones time in the sense that one will more from one pole to<br>another. Just to put one or off the light.<br>1.3OBJECTIVES OF STUDY<br>This professional documentation focuses on using a serial interface hardware<br>built on microcontroller and max 232 serial converters. The ensure that the high<br>negative -15 volts and + 15 volts of the serial RS232 comport is converted and<br>programmed to suit the CPC logic levels. The system is responsible for controlling,<br>3<br>energy management and system diagnostic functions. Tracking of all lighting<br>activities, especially bulbs. In a place where prepaid meter is in use, it could help<br>reduce the cost.<br>1.4SIGNIFICANCE OF STUDY<br>This system is important considering the fat that only a push of a button can<br>switch off or on the light connected within the system. With this system, one can<br>easily be on his/her bed and switch off or on the lights.<br>The system is safe therefore children can also switch off or on the light when their<br>parents or guardians are not close. The system is very necessary in the sense that<br>it gives you what you want at any needed time. The system also keepstrack of all<br>activities (bulb).<br>1.5SCOPE OF STUDY<br>The research will focus on creating a computerized system that will switch on or<br>off light on the street and equally control the power aspect.<br>The research will also focus on light bit microcontroller issues discreet digital<br>electronics in appliance control. Intel controllers that can complete application<br>are typically relegated to switches and times are also discussed. It will be a system<br>that maximizes user efficiency and user convenience.<br>1.6LIMITATION OF STUDY<br>One of the major setbacks of this work is finance. Due to lack of finance, one<br>could not bring the system to life. Inadequate electricity also contributed to the<br>setback of this work.<br>4<br>1.7DEFINITION OF TERMS<br>Electrochemical: describe a mechanical device that is powered or controlled by<br>electricity. Relating machines powered by electricity.<br>Pneumatic: the branch of physics with the mechanical properties of air and other<br>gases.<br>Retrofit Identification: To modify something such as a machine or a building by<br>adding newly developed parts or devices that were not available where the<br>machine or building was made.<br>Diversy analysis: A variety of something such as opinion, colour, or style. <br></p>