ABSTRACT The serious setback in modern day Automatic Speech Recognition (ASR) technology is posed by intonation differences which results in acoustic and durational variability; a problem that hindered the full exploration of this area of research and the development of the speech technology product globally. This work developed an algorithm that is capable of adapting to the accent of the focused Nigerian major tribes (Hausa, Yoruba, Ibo, and Fulani) thereby improving the development of loca...
Abstract Production of biogas energy is one of the important technical solutions that contribute to the transformation of energy system from being fossil fuel dependent to renewable energy originated. Thus, comprehensive understanding of biogas energy is necessary in order to develop an accurate and robust model that will predict and control the biogas production. This research paper develops a fuzzy logic controller model for biogas generation of electrical energy. A fuzzy logic algorithm w...
This is a project work using GSM Technology to control home appliances.
Contents TITLE PAGEi CERTIFICATION AND APPROVALii DEDICATIONiii ACKNOWLEDGEMENTiv ABSTRACTv TABLE OF CONTENTSvi LIST OF FIGURES viii CHAPTER ONE1 INTRODUCTION1 1.1: PROBLEM STATEMENT1 1.2: THE AIM AND OBJECTIVE OF THE CLAP ON-CLAP OFF SWICHT2 1.3: JUSTIFICATION OF THE RESEARCH2 1.4: LITERATURE REVIEW2 CHAPTER TWO5 THEORY AND PICTORIAL ANALYSIS5 2.1: THEORITICAL ANALYSIS5 2.2: BLOCK DIAGRAM DESCRIPTION 6 2.3: IMPLEMENTED COMPONENTS6 2.31: CONDENSER MICROPHON...
Unmanned aerial vehicles have been around for decades, but they have achieved the greatest popularity in recent years with small commercial drones. The new so-called FPV (first person view) technology gave us a unique experience of flying and the advancement of GPS systems in drones opened a whole new world for passionate individuals. Of course, drones are not the only RC flying devices on the market, but their agile multi-rotors and their capability to take amazing photos and record stunning...
ABSTRACT An induction or asynchronous motor is a type of AC motor where power is supplied to the rotor by means of electromagnetic induction, rather than by slip rings and commutators as in slip-ring AC motors. Single phase induction motor is the most familiar of all electric motors & they are similar to a 3-phase squirrel cage induction motor. It has a squirrel-cage rotor identical to a 3-phase motor and a single phase winding on the stator. There are several methods for controlling the spee...
ABSTRACT The present invention relates to an improved control system for starting a three phase induction motor comprises improved power contactors configured to have a pair of three pole delta and main contactors, and a single pole star contactor for supplying AC power to star position and delta position, a timer for controlling AC power supply switching operation for star position and delta position and for adjusting a time delay of switching over from star connection to delta connectio...
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ABSTRACT Traditional power grids are now transformed into Smart Grids (SGs) in order to solve the problems of energy wastage, energy control, uni-directional flow of information, growing energy demand, reliability, measurement and security. Smart grids increase the automation, coordination and connectivity between these electricity suppliers, electricity users and networks used in local distribution tasks and long distance transmission. Smart Grids offer bi-directional energy flow between ele...
ABSTRACT A traffic light also known as a traffic signal, stop light and go light, robot or semaphore is a signally device positioned at four (cross) junction, pedestrian crossing or other locations in other to indicate when it is safe to drive or walk using a universal color code ( and in precise sequence for those that are color blind). Traffic light system operate on a turning mechanism that changes the light after a given interval of 7-120 seconds depending on the traffic congestion on t...
Wireless power transfer (WPT) technologies have been widely used in many areas, e.g., the charging of electric toothbrush, mobile phones, and electric vehicles. This project introduces fundamental principles of three WPT technologies, i.e., inductive coupling-based WPT, magnetic resonant coupling-based WPT, and electromagnetic radiation-based WPT, together with discussions of their strengths and weaknesses. Several WPT applications are described. Open research challenges are then presented wi...
ABSTRACT The document outlines an investigation done in order to study Fifth Generation (5G) systems and to identify a role that satellite systems will play in contribution to the many advanced and diverse demands on existing telecommunication networks. This next generation network is a build-up and phenomenal improvement in wireless communication done by the “5GPP” on the already existing mobile generations. The evolution has seen us move from first generation which employed analogue te...
Commutation failures are very frequent dynamic events in high voltage dc (HVDC) transmission systems. Commutation failure is mostly observed at the inverter side of HVDC links, where large firing angles are used. The minimum value of the extinction angle required for the proper operation of a valve is specified by the valve manufacturer; however, at the inverter side of HVDC systems the extinction angle is regulated to a value higher than the valve specifications to allow control adjustments ...
ABSTRACT The conversion of an input AC power at a given frequency and voltage to an output power at different frequency and voltage can be obtained with static circuits called power converters, containing controllable power electronic devices. Various power converters have been developed to fulfill the requirements of the wind power generation. The most common option for the generators used in wind power generation is “asynchronous”, because support for speed variations is provided. This ...