Browsing by Author "Naman, Godfrey"

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Accessibility Features for Augmented Reality Indoor Navigation Systems
(Springer Link, 2024-06-29) Samson, Frank; Dida, Mussa; Leo, Judith; Shidende, Deogratias; Naman, Godfrey
Accessibility plays a pivotal role in developing technological tools that strive to promote inclusivity for users of all abilities. Regrettably, many technological advancements have traditionally disregarded accessibility, assuming homogeneous user abilities or treating it as an afterthought. This paper endeavors to provide a review of accessibility considerations on augmented reality indoor navigation systems, to enhance navigational experiences in indoor learning environments. To achieve this, interviews were conducted with visually impaired individuals, to investigate their existing methods of navigation, identify challenges they face, and uncover potential accessibility features that could enhance indoor navigation systems. Additionally, a literature review was undertaken to explore various accessibility features in the context of indoor navigation systems, including localization technologies and pathfinding algorithms employed in indoor navigation applications. Finally, the paper concludes by offering insights into accessibility features specifically tailored for individuals with visual impairments, to facilitate efficient indoor navigation.
IoT-Based Intelligent Charging System for Kayoola EVs Buses at Kiira Motors Corporation in Uganda
(Research Square, 2024-02-16) Ntwali, Benjamin; Sinde, Ramadhan; Ally, Mussa; Naman, Godfrey; Ntambala, Boniface
The increasing popularity of Electric Vehicles (EVs) has led to a surge in the need for charging stations in Kayoola EV buses. Most of existing EV charging stations have outdated features which is challenging to be remotely controlled. However, current EV charging systems experience with no remote battery operational charging status, unsafety control if charging station is faulted, and insecure charging RFID card payment. This paper, an IoT-based system was aimed to manage and monitor these EV charging stations. The battery management system (BMS) sends charging voltage and current information to charger via Controller Area Network (CAN) bus. Then, the Raspberry Pi4 receives and decode CAN charging data to be processed, analyzed and transmits to the cloud server. Each charger is equipped with sensors monitoring parameters like charging status, energy consumption, voltage, current, and time. The user can access that decoded charging information via android mobile application and desk remote management system. Additionally, the system server calculates the battery charging levels and commend RFID card transaction payment. The results show that developed IoT-based intelligent charging system provides and outperforms minimum and maximum cell voltages of 2.82V and 4.1V, min. and max. cell temperatures of 37℃ and 40℃ respectively. The charged energy of 10kWh, used energy of 0kWh, charging state indication, low-cell voltage as error state indication, charging price rate of 500Ugx/kWh, and full-latch of 0, pack voltage of 483.9V, pack current of 100.1A, battery health of 97%, battery state of charge (SoC) of 100% and remaining charging time of 38 mins were also detected and remotely monitored. In conclusion, the developed system proves 100% of real-time and remote data access and accuracy, efficiency, security, accessibility, sustainability, safety charging payment, and remote battery status monitoring system of EV charging infrastructure compared to the current charging where it offers only 58.75% of charging rate.
IoT-Based System for Maintaining Constant Taste of Ginger-Flavoured Alcohol: A Case of Eden Business Center, Rwanda
(Springer Nature, 2026-04-01) Ingabire, Speciose; Naman, Godfrey; Sinde, Ramadhani; Leo, Judith
The beverage industry, particularly the flavoured alcohol sector, plays a role in the development of Rwanda since most of people consume ginger beer due to its lower cost, demand, spacy medicine, and small alcohol volume. Regardless the increase of several this approach proposes to address these challenges however; it does not fully solve the issue. In this paper, a smart IoT-based system monitoring proposes to address the flavour consistency issue faced by the beverage industries. The proposed solution aims to enhance the monitoring and controlling the production and fermentation process through real-time data collection and remote control capabilities. By leveraging IoT technologies, sensor networks, cloud computing, and mobile application were used. The proposed study enables efficient monitoring of key parameters such pH, temperature, alcohol and concentration. Moreover, it facilitates rapid control and timely interventions by altering the user about the active data on the ginger beer status. The experimental results prove that the system has great prospect and it is for beverage industries usage. The ginger industry is seeing improvements and evolution in today's technology. Ginger is an upright perennial plant that grows to a height of three feet and a width of 1.5–6 cm. It thrives in well-drained soil and in areas that receive some shade. Ginger may be cultivated in both irrigated and rain-fed environments.