Browsing by Author "Lambe Mutalub ADESINA"

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    Development of an Automated Electronic Estimation Weighing Scale
    (College of Engineering, Afe Babalola University, Ado-Ekiti, Nigeria, 2023-06-21) Olalekan OGUNBIYI; Oloruntoba Christopher MOHAMMED; Lambe Mutalub ADESINA
    Analog weighing scales suffer from a lack of precision while reading the output and they can easily be manipulated by any technically biased individual. In this paper, the development of an automated and price estimating weighing device is considered. It aims at developing a means to a framework to evaluate estimated weight in analog to digital forms, such as to obtain higher precision in estimation and calibration. The circuit consists of a Load Cell as the sensor, an amplifier to boost the low signal from the sensor, an Atmega328 microcontroller, a 16x2 Liquid crystal display, and a few additional glue components. The 20 kg load cell converts the pressure from the load to an equivalent electrical signal which will be sent to the Hx711 IC module. Hx711 amplifies and processes the corresponding output to the Atmega328 microcontroller. The system uses the 4x3 keyboard to input the unit cost per kg to the electronic scale. The microcontroller automatically adjusts the signals with the load cell amplifier module's guide, thus sending the estimated cost to the Liquid crystal display module. The circuit was designed, constructed, and tested to show that a computerized electronic weighing system can be locally and cheaply made. Comparison with the state-of-the-art scale shows that the constructed digital scale was accurately calibrated without errors.
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    Development of an Automatic Phase Selector for Nigerian Power Utility Customers
    (College of Engineering, Afe Babalola University, Ado-Ekiti, Nigeria, 2024-07-01) Lambe Mutalub ADESINA; Olalekan OGUNBIYI; Bilkisu JIMADA-OJUOLAPE
    Power utility customers in a developing country like Nigeria have constituted a habit of changing the electricity supply line from an unavailable or unstable phase to the most available or stable phase. The category of customers involved in this character are those on single phase power supply. However, this act is being carried out manually at the meter point using the cut-out fuses. This attitude results in phase unbalances, overheating electrical equipment including feeder pillars, transformer coils, network faults, and overall system instability. Thus, this paper presents the development of an Automatic Phase Selector for Nigerian Power Utility Customers. The device automatically selects an available phase from the three-phase power supply lines. The research comprises designing an automatic phase selector circuit, simulation of the designed circuit, programming code development in C- Language for the microcontroller, construction of the designed circuit, and carrying out tests on completed work done to ascertain the effectiveness of the developed system. The system operation involved a three-phase supply from the closest distribution network of the power utility company which is connected to a three-in-one gang switch while the switching ON and OFF of their static switches represent phase-off in an ideal situation. The operational results of this system are presented in the form of the truth table which indicates that the affected customer would not have a power supply only when the 3-phases are under voltage or overvoltage or unavailable. This implies that one of the three phases that meet the three criteria would be switched ON. A pure sine wave was used as input into the Optocoupler and the output waveform of the rectified pulsating signal is separately displayed. This output waveform is very clean and noiseless. Finally, the system when practically tested with an unbalanced three-phase supply, worked perfectly enhancing the flexibility of operating an Automatic Phase selector and hence avoiding manual switching of the phase selector which has been attributed to changing of cut-out fuses and associated stress as well as having a user-friendly phase selector.
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    Development of Smart Water Level Controller using SMS Module
    (Faculty of Engineering, Ekiti State University, Ado-Ekiti, 2022-12-06) Lambe Mutalub ADESINA; OREOLUWA MARY ADEGBOYE; OLALEKAN OGUNBIYI
    Water is considered a valuable resource and covers about 70% of the earth's surface. Tight schedule prevents regular checking of the domestic water tank level while refilling the used ones. This often leads to waste of water and increased monthly revenue payment to power utility company. Consequently, this paper presents a development of water level controller with SMS capability aimed at measuring water level smartly such that when tank is filled, message would be automatically transmitted as an alert to the owner using GSM for immediate response. The method involves interconnection of a water container that serves as tank with another open container serving as Borehole and a microcontroller-based device with its integrated development to generate a communication message. A flowchart that shows the procedural steps involved was developed. On completion of the prototype, components and subcircuits effectiveness as well as experimental testing of the system effective operation were carried out. Some anticipated water levels (AWL) were selected at interval of 2 centimeters (cm) starting from 3cm and the corresponding Message Operating water level (MOWL) were obtained with error deviations not greater than 0.17cm. Thus, the average AWL, average MOWL and the error deviation are 11cm, 10.7cm and 0.1cm. The prototype device thus operated effectively.
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    Development of Water Level Controller with SMS Capability
    (College of Engineering, Afe Babalola University, Ado-Ekiti, Nigeria, 2024-05-16) Lambe Mutalub ADESINA; Olalekan OGUNBIYI; Bilkisu JIMADA-OJUOLAPE
    Water is considered a valuable resource and covers about 70% of the earth's surface. The tight schedule prevents regular checking of the domestic water tank level while refilling the used ones. This often leads to a waste of water and increased monthly revenue payments to power utility companies. Consequently, this paper presents a water level controller with SMS capability aimed at measuring water level smartly such that when a tank is filled, a message would be automatically transmitted as an alert to the owner using GSM for immediate response. The method involves the interconnection of a water container that serves as a tank with another open container serving as a Bore-hole and a microcontroller-based device with its integrated development to generate a communication message. A flowchart that shows the procedural steps involved was developed. On completion of the prototype, components and sub-circuits effectiveness as well as experimental testing of the system's effective operation were carried out. Some anticipated water level (AWL) were selected at an interval of 2 centimeters (cm) starting from 3cm and the corresponding Message Operating water level (MOWL) were obtained with error deviations not greater than 0.17cm. Thus the average AWL, average MOWL, and error deviation are 11cm, 10.7cm and 0.1cm. The prototype device thus operated effectively.