Browsing by Author "Kalyankolo, Zaina"

Now showing 1 - 4 of 4
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    Design and Analysis of a Lab IP Spy Camera and Alarm System using Raspberry Pi and ATMEGA328P
    (System, 2020) Edozie, Enerst; Wantimba, Janat; Kalyankolo, Zaina; Adabara, Ibrahim; Ukagwu, Kelechi John
    Security is a very important thing to be concerned in our day-to-day life. Everyone wants to be secured as much as possible. Knowing our home or office is secure provides us peace of mind. With the increasing concern over better protection of people and assets, security departments are required to provide a higher level of security than before: proactive prevention, better situational awareness, earlier detection, quicker identification and prompter action. Now many organizations are continually reevaluating and enhancing their video surveillance to provide optimal daily security and operational efficiency. As the technology is advancing day by day, there are various alternatives occurring for the already present or previous technologies. Internet of Things (IOT) is an upcoming technology that makes use of Internet to control/monitor physical devices connected to the Internet. The basic premise is to have smart sensors collaborate directly without human involvement to deliver a new class of applications. IOT gives user the ability to control more than one digital thing easily through a comfortable Graphical User Interface (GUI) over the Internet. This paper aim to design an Embedded Real-Time Security System Based on Raspberry Pi for intruder observation that reinforces surveillance technology to provide essential security to the Lab equipment and associated control. And also to design a low cost Alarm system based on Microcontroller and ultrasonic sensor that takes proper measure to prevent intrusion, unwanted and unauthorized user(s) into the Lab. Ultrasonic sensor sense the presence of an intruder & Controller reads the signal from sensor, if intruder is detected, it turns on the buzzer. At the same time the live stream vide of the intruder can be monitored, and also the IP spy camera control system will send an image of the intruder via Gmail to the user. The designed system has been proven to be a reasonable advancement in access control and security system technology.
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    Design and Implementation of a Smart Hand Sanitizer Dispenser with Door Controller using ATMEGA328P
    (International Journal of Engineering and Information Systems, 2020) Edozie, Enerst; Wantimba, Janat; Kalyankolo, Zaina
    In this covid-19 pandemic period which is a global outbreak, hand hygiene is the core preventive measure in the spread of the disease as advised by WHO (World Health Organization) which includes washing hands with water and soap regularly, hand sanitizing using hand sanitizers, etc. Hygiene refers to the practices conducive to maintaining health and preventing disease especially through cleanliness such as washing hands, coughing in the elbow etc. Hand washing helps to prevent any diseases that spread through contact. In order to eliminate most of the germs on the hands, one needs to apply a good hand washing practice. In most healthcare settings, alcohol-based hand sanitizers are preferable to hand washing with soap and water because it can be easily tolerated and it is also more effective at reducing bacteria. Hand sanitizer is a liquid, gel, or foam generally used to decrease infectious agents on the hands. A sanitizer is designed to kill germs on skin, objects and surfaces. This research paper aim to design and implement a low cost smart hand sanitizer dispenser with door controller based on ATMEGA328P (Microcontroller), electromagnetic lock and Ultrasonic sensor that can help to solve the challenges faced by security guards at different stations such as bank doors, school gates, hospital gates etc. in enforcing this hand sanitizing action before letting people in to where ever they intend to enter as some people are not willing to collaborate, some look at it as a wastage of their time and also sometimes these security guards can let some people in without sanitizing just because they are their friends or family relatives which is very risky. Therefore, the smart hand sanitizer is stationed at the entrance door and it is connected to the door in such a way that it controls it. That is to say, when a person(s) wants to access the entrance door, they must first sanitizer their hands or else the door will remain locked. With this smart hand sanitizer dispenser, an ultrasonic sensor is used to check the presence of hands below the outlet of the sanitizer machine. It will continuously calculate the distance between the sanitizer outlet and itself and tells the microcontroller to turn on the servo motor whenever the distance is less than 10cm to push the sanitizer out and immediately after the sanitizer outlet dropping some amount into your hands, the electromagnetic lock will de-energize (unlock the door) lighting up a green LED and display a word “The Entrance Door is Open” on the LCD display, then the second servo motor will open the entrance door. Otherwise, the door will neither unlock nor open but a red LED will continuously be on with the “Please Sanitize Here” words displayed on the LCD display.
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    Design and Implementation of an Android Based Automatic Phase Selector and Overload Protector Using GSM
    (International Journal of Academic Engineering Research, 2021) Kalyankolo, Umaru; Aguto, Ateny Gabriel; Kalyankolo, Zaina; Edozie, Enerst
    In this century, the demand for electricity is increasing at an alarming rate that has caused pressure on the existing transmission and distribution networks. This has led to power cuts affecting sensitive facilities such as hospitals, industries and schools. This project is designed to automatically supply continuous power to the load through one or all of the three sources of supply that are: solar, mains grid & generator. In case their availability; an android app is used to select the source of choice and when the amount of load demand increases beyond what can be handled by one source, a mobile app is used to bring on board either of the remaining two sources so as to meet the load demand. The output of either source is connected to a voltage stabilizer which stabilizes the voltage to 220Vac by means of an auto-transformer with many taps and then the load is connected through an overload protector circuit which monitors the amount of current drawn. Once the current exceeds normal values, the last load connected is automatically isolated from the source leaving the critical loads connected. At the same time a message is sent to the operator by means of GSM, notifying of the overload. The operator can decide to operate the loads by sending a text message “normal” to restore the system operation to use an android app.
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    Design and Implementation of Three Phase PWM Inverter Control Using Microcontroller
    (International Journal of Engineering and Information Systems, 2021) Kalyankolo, Umaru; Kigenyi, Abdunulu; Kavuma, Lawrence; Isabirye, William; Edozie, Enerst; Kalyankolo, Zaina
    This paper presents an advanced three phase inverter topology the Z-Source Inverter and its control using microcontroller Atmega 328P. Z-Source Inverter employs second order filter network at front end which provides unique buckboost feature for inverter. Z-Source inverter can be controlled by any traditional PWM method. Here the modified maximum constant boost PWM method is utilized for Z-Source inverter control. The microcontroller Atmega 328P is used to generate PWM pulses and to control operation of Z-Source inverter. The complete hardware is designed to drive the three phase induction motor. The hardware design involves the design of control circuit, driver circuit, Z-Source network, main inverter bridge, power supply etc. The Z-Source inverter is implemented and tested to verify the Z-Source inverter concept. The desired three phase PWM signals are generated by using control circuit and detailed hardware results are presented.