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An intelligent traffic control system
Full text linkApplied project submitted to the Department of Computer Science and Information Systems, Ashesi University, in partial fulfillment of Bachelor of Science degree in Computer Science, May 2022Traffic congestion has been a problem in Ghana for a while now. Unfortunately, the
traffic control system in Ghana is inefficient at managing this issue. This is because it solely
operates based on time intervals of 1 and a half to 2 minutes, which leads to an equal
allocation of flow time. However, equality does not necessarily mean efficiency as some of
the time allocated could be wasted because of the low number of vehicles at the junction.
Therefore, this project proposes an intelligent traffic control system using an efficient
algorithm. This project aims to use efficient algorithms and Artificial Intelligence to make
real-time and dynamic decisions based on data gathered to ensure a more efficient and
equitable traffic control management system. Traffic data such as the number of vehicles,
prioritized vehicles like ambulances, etc. is gathered at every junction and real -time traffic
flow decisions are made to drain the network of junctions based on the density of vehicles on
each stretch of road.Ashesi Universit
Comparative analysis of the O2-tree with alternative main-memory DBMS index structures
No full textUndergraduate thesis submitted to the Department of Computer Science and Information Systems, Ashesi University, in partial fulfilment of the requirements for the award of Bachelor of Science degree in Computer Science, May 2022In today's computing world, in-memory databases are increasingly being used to increase transactional throughput and cache query results in distributed systems. One component of in-memory databases that is crecial in determining their performance is their index structure. In 2013, Ohene-Kwofie, Otoo et al. proposed the O2-Tree, and the associated O2-Tree-KV as a index structure for main memory databases and an associated key-value store, respectively. Initial tests demonstrated that the O2-Tree was a promising structure. Still, results obtained from testing the performance of the O2-Tree-KV with leading NoSQL data stores were not as conclusive, as only a small set of alternative structures were employed during testing. In this study, we demonstrate, by way of experimentation, the viability of the O2-Tree as a comparative database index by testing its performance alongside other leading index structures. We achieve this by demonstrating that the O2-Tree is competitive in two critical domains of database index-structure comparison; the ability to build index structures quickly and thus recover from unexpected and sometimes inevitable crashes; the ability to execute query sets with varying update ratios at relatively fast speeds.Ashesi Universit
The Impact of Inventory Management on the Performance of Atala Limited
Full text linkApplied project submitted to the Department of Business Administration, Ashesi University, in partial fulfillment of Bachelor of Science degree in Business Administration, May 2022The primary goal of the project is to increase operational efficiency within Atala Limited and avoid discrepancies in stock takes by providing a system that allows for real-time data reconciliation. Atala Limited needs a system that provides real time data reconciliations to implement the values of integrity and efficiency, while monitoring and controlling stock and inventory levels across branches. Structured interviews and literature reviews were used as the means of data collection. The Deputy General Manager of Atala Limited and the staff who were dealing with their old system were involved in the data collection process. Open-ended questions were used in interviews to get insight into the organization and industry. After analyzing the data collected, it is recommended that the company incorporates the Tally Prime Software, Tally.net, as well as a policy document to improve the inventory control system that the company currently has. When these proposed solutions are implemented in the daily operations of the business, it would help to combat the issues surrounding inventory management control. Among the many features provided by Tally Prime which includes data reconciliation and synchronization as well as stock alerts, Atala Limited will also benefit from the ability to access data from any location, on any computer, at any time through Tally.net. We believe that this software will greatly improve the efficiency of inventory management at Atala Limited.Ashesi Universit
A personal health record system for patients and medical professionals
No full textApplied project submitted to the Department of Computer Science and Information Systems, Ashesi University, in partial fulfillment of Bachelor of Science degree in Computer Science, May 2022As modern healthcare progresses, hospitals have incorporated technology into their various services. Essentially, this has given multiples hospitals a competitive advantage over other industry players. They have implemented Electronic Health Record Systems that is used within their facilities to efficiently manage patient information. However, patients still have little to no access to their personal records. It is believed that a Personal Health Record System would improve the access and the quality of care provided to patients by allowing them to have direct access to their medical health records. This project proposes a mobile application that will digitize hospital cards and allow patients to maintain and manage their health information privately and securely.Ashesi Universit
Edge computing and machine learning on embedded systems
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Computer Engineering, May 2022Running Machine Learning (ML) in embedded systems has fueled the rush for edge computing,
where machine learning runs in edge devices. This approach to ML yields many results, such as
lower latencies and reduction of network traffic and bandwidth. This project set out to explore
machine learning in embedded systems. The Edge Impulse Platform was used to collect data and
to a neural network. The neural network created was able to distinguish between five classes of
motion. The Neural Network created was tested on two microcontrollers and a desktop.
Inferencing on the Arduino Nano BLE took 24ms, and on the desktop, it took 271.8 μs.Ashesi Universit
An IoT based battery management system for electric vehicles
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022A prototype of an IoT based electric vehicle battery management system was designed to
improve the health of cells in a battery pack of an electric vehicle. An IoT system was
deployed to allow users and producers of these battery packs to view the status of the cells
in the battery pack from the cloud. The design uses various resistor dividers to monitor the
individual cells' voltages, current, and temperature. A passive balancing circuit is also
implemented to ensure the individual cells charge and discharge at the same voltage level.
The voltages, current and temperature of individual cells were monitored successfully. A
database was designed to keep records of the individual batteries using phpMyAdmin, and
the data was successfully displayed on the website.Ashesi Universit
Design and construction of smart three-way change over switch and microcontroller-based pure sine wave inverter with remote monitoring solution
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022Intermittent power outages have rendered most developing countries' national grids
unreliable. Consumers have installed alternative energy sources such as solar panels and
wind turbines to combat this issue. Because of their nature, the output of these power sources
must be converted to match the national grid's output. Additionally, consumers must be able
to switch between these power sources when required quickly.
Many inverter solutions have been developed and are readily available in the market.
However, most affordable inverters produce a square wave, which is unsuitable for sensitive
electronics; sine-wave inverters, on the other hand, are perfect for all appliances but are
more expensive than square wave inverters.
Furthermore, many switching solutions are available in the market to allow consumers to
switch between power sources manually or automatically. These, however, can only switch
between two power sources.
This project has designed and developed a microcontroller-based pure sine wave inverter equipped with remote monitoring capabilities and a three-way intelligent changeover
switch. The inverter converts 12V DC to a single-phase 230V AC at 50Hz pure sine wave.
The three-way changeover utilizes a microcontroller to switch the power supply among
three input power sources.Ashesi Universit
A tracking device for use in missing persons cases
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022In Ghana, kidnap cases are continually on the rise. Each day we hear cases of individuals of all ages going missing, with the local police forces claiming to solve most of these cases, yet the ratio of missing to discovered individuals is as high as ever. In Western countries, there are systems put in place to aid in the location of missing individuals. In Ghana however, the way in which this is done is by sharing information on the missing individuals on different social media platforms. This method of location is problematic as most individuals that go missing are not found for several years. In this project, a tracking device is designed and implemented to aid the families of missing individuals locate their loved ones. The results from this project identify that the location of a missing individual can be accurately determined with the aid of the tracking device. As such, the device can be used in conjunction with local police authorities in an effort to reduce the rate at which individuals go missing in the country.Ashesi Universit
Solar-Powered Desalination System for Coastal Areas
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022More than 75,000 people in Ghanaian coastal areas rely on saltwater consumption, which has often caused dental damage and diseases such as cholera and bilharzia. The wells and boreholes in coastal areas supply water with high saline content because of underground seepage from the sea. The existing desalination technologies are expensive and unaffordable for coastal settlers. Solar energy costs have become relatively bearable in the past decade, and desalination means can be developed using low-cost resources with the excellent compromise to produce potable water effectively. This project uses a solar-powered desalination system to produce 100 litres of potable water per day.Ashesi Universit
Design and construction of smart indirect solar dryer for food processing in the agricultural sector
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Mechanical Engineering, May 2022As the world population continues to increase with climate change, food insecurities remain
one of the emerging challenges that require sustainable development and solution. Post-harvest
losses happen to be one of the main causes that records massive quantities of food losses
worldwide. Even though much research has been done in this area to produce multiple solutions
ranging from different types of drying system utilizing different heating mechanisms, this
problem is still prevalent. This project focuses on combining the most effective types of solar
drying techniques to design and construct a solar dryer incorporating some basic electronics
targeted at eliminating the possible problems to study the performance of the dryer to improve
its efficiency.Ashesi Universit