ABSTRACT This project presents a system which is a power based auto select technology which automatically selects an active phase from a three phase supply, for single phase load. This eliminate the use or' conventional manual changeover using rewireable fuses. This design was implemented using a combination of Op-Amps 555 timer and relay (switch) circuit to achieve the set aim. Testing results showed that the load will continue to receive power even when failure occurs in any of the three ...
ABSTRACT The design and construction of a 50HZ, 240V 1 kV A inverter is primarily based on an inverter circuit which inverts the D.C. source voltage from a battery, AC voltage for AC powered appliances. The overall operation of this system comprises inter connections of many subcircuits to give optimum performances. The sub circuit include; the oscillator circuit, PWM circuit, driver circuit, low battery/overload shutdown circuit, charging control/soft charging circuit, surge protection circ...
ABSTRACT This report presents the design and implementation of contactless height measuring instrument. This project is based on developing and creating a device that utilizes ultrasonic sensors to determine height of an object ranging up to 200cm or 2m. The device is intended to be used as an alternative to the other more bulky and expensive models found either at home or at health centers. The ultrasonic height measurement device makes use of ultrasonic sound transducers to generate ultraso...
ABSTRACT This project is titled the design and constmction of an automatic water pump controller with level indicator. The project is designed to give a display of water level in a tank and control a pump motor as required. The reading given is in the scale of centimeter and percentage. The project circuitry mainly comprises an ATMEGA328P microcontroller which is the processing unit of the system, 16 X 2 liquid crystal display (LCD) which displays the level of the water in the water tank as ...
ABSTRACT This project presents a light activated switch for switching on and off electrical appliances using light dependent resistor (LOR) for its operation. The light dependent resistor changes or varies resistance with change in the intensity of light hitting its surface, this in turn is passed through a comparator to determine if the light intensity can be said to be day through the resistance entering the comparator. It can however be programmed to act as a light activated switch or as ...
ABSTRACT The project presents a currency counting machine with fake note detection. Over the past few years, there has been a large amount of counterfeit money in circulation, usually manufactured by illegal counterfeit rings with the aid of great technological advances. This money is usually spent in public places like a market, buses, etc. This money keeps moving in circulation until it gets to the bank where they notice that the currency is fake and the money is then confiscated, leaving...
ABSTRACT With advancement of technology things are becoming simpler and easier for us. Automatic systems are being preferred over manual system. The purpose 0f this project is to design and construct A GSM based home automation using GSM Module. Using GSM networks, in-.'this project a home. power control system has been. designed that will act as an embedded system which can monitor and control · . . . appliances and other devices using built-in input and output peripherals. The system has ...
Abstract To fulfill the need of higher bandwidth, enhanced number of users, enhanced speed of communication of today’s users, the concept of wavelength division multiplexing (WDM) and fiber optic are developed. In which the multiple input signals are combined together and transfers as a single input. It uses the concept of multiplexing and de-multiplexing. WDM system comprises of amplifiers that are used to enhance the performance of the optical fiber system. This study analyzes a hybrid c...
ABSRACT Hypertensive-patient monitoring usually requires the use of non-invasive sensors that are hardwired to bedside monitors. This set-up is cumbersome, forcing the patient to be confined to his hospital bed thereby not allowing him to move around freely within the hospital premises. Presently, in order to continuously track a patient's Blood Pressure (BP) remotely over a period of time, physicians hand over specialized devices to patients. Most of these devices are cuff-based that are wo...
A web-based information management system for national health insurance scheme(NHIS) will assist the body to have an online registration of people, health maintenance organizations (HMOs), accredited heath care providers, etc. Looking at the Nigerian population, access to health insurance is denied to a certain category of people as a result of not being a government worker or not privileged to be duly informed on the operation of the scheme and how to enroll Knowing that Health insurance is ...
Abstract : IX The way people perceive the city’s elements at night is totally depends on lighting design and man-made facilities. Due to the development of cities’ economic and citizen’s life style, the nightscape of the city became as important as the appearance of the city at daytime and sometimes it is more important because it can make more impact on people’s minds about the city. Though the potential of Khartoum city to become an iconic lighted city on the Nile river, the city a...
Abstract In Long Term Evolution-Advanced heterogeneous networks, pico-eNBs are added to existing macro cells networks that contain macro eNBs in order to offload traffic from macro layer and bring users closer to the picoeNBs to enhance the cell edge user experience. Moreover, Cell Range Expansion (CRE) is a way to increase the percentage of users that associate to pico BSs which leads to reduce the imbalance traffic load between cells .However, there is strong interference which is caused b...
ABSTRACT Digital intercept receivers are currently moving away from Fourier-based analysis and towards classical time-frequency analysis techniques, such as the Wigner-Ville distribution, Choi-Williams distribution, spectrogram, for the purpose of analysing Low Probability of Intercept (LPI) radar signals.The LPI signals are difficult to detect, intercept and recognize, because they have many combined features implemented that help the LPI radar prevent its detection by modern intercept rece...
ABSTRACT An integration of Vehicular Ad-hoc Network (VANET) and cellular network, e.g. LTE is a promising architecture for future machine-to-machine applications. This integration helps vehicles to have steady internet connection through cellular network and at same time can communicate with each other. However, dead spot areas and unsuccessful handover processes, due to vehicles high speed, can disturb the implementation of this kind of architecture. In this thesis, a Simplified Cluster –...
Abstract Control system is integral part of modern society numerous applications are all around the whorled. The rockets live and the space shuttle lifts of the orbit in splashing cooling water, a malleable part is automatically machined a self guided vehicle delivering mechanical to work station in an a era space assembly planet glides along the floor speaking it’s destination. In modern industries the maintaining and handling of disturbance has a grate significance of efficiency and cost...