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Boosting Accuracy and Reducing Time in Laser Shooting Practices: Video Processing Solutions for Impact Evaluation
(2024)
David Rivas-Lalaleo
;
Víctor Bautista-Naranjo
;
Vayas Ortega, Germania
;
Erika Iza-Chango
;
Pamela Lema-Jumbo
This study explores the most effective method for impact measurement in laser shooting ranges, crucial for security training, accident prevention, and cost reduction. It utilizes video surveillance and image processing algorithms in Python to accurately determine laser impact locations. The research found that employing a single target per silhouette is most efficient, minimizing errors to ±1 impact and enabling heat map generation for feedback. The combination of video surveillance and image processing significantly enhances safety and reduces costs by providing real-time data. The findings advocate for the single target approach due to its precision and the comprehensive insights gained from heat maps, maintaining accuracy within a two-hit margin.
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Differential Performance of Satellite Navigation in Urban and Rural Andes of Ecuador
(2024)
David Rivas-Lalaleo
;
Víctor Bautista-Naranjo
;
Vayas Ortega, Germania
;
Tatiana Freire-Guachamín
;
Jefferson Pilicita-Veloso
This study assesses the effectiveness of Global Navigation Satellite Systems (GNSS) in Ecuador, a country situated on the equator, where unique challenges include elevated ionospheric activity and increased solar radiation. It focuses on the accuracy of major satellite navigation systems such as GPS, Glonass, and Galileo in various environments, from open fields to urban areas with dense building coverage. Using a satellite communication module and a data logger capturing information every second, the study provides a detailed comparison of these systems. The findings indicate that a combination of GPS and Glonass significantly enhances accuracy, reducing errors to less than 20 cm, which is crucial for high-precision applications in the equatorial region. This outcome is consistent with and expands the understanding of satellite navigation performance across different Andean landscapes, highlighting the need for tailored approaches in both urban and rural settings within the equatorial context. In summary, the research reaffirms the transformative role of geopositioning and GNSS in global navigation and emphasizes the potential for improving GNSS accuracy in the equatorial region. It contributes significantly to ongoing efforts to optimize geopositioning systems, ensuring their effectiveness in diverse geographical and environmental conditions, as exemplified in the Andean regions of Ecuador.
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Acceptance of an IoT System for Strawberry Cultivation: A Case Study of Different Users
(2024)
Varela Aldas, José
;
Gavilanes, Alex
;
Nancy Velasco
;
Carolina Del-Valle-Soto
;
Carlos Bran
The Internet of Things (IoT) has been impacting multiple industries worldwide for over a decade. However, less developed countries have yet to make the transition to these technologies. South America is among the regions with the least IoT influence in all sectors, indicating a need for studies to explore IoT acceptance among various users in this region. This study analyzes two different users of a monitoring and irrigation system for strawberry (Fragaria × ananassa) farming. Monitored variables include soil moisture, and ambient temperature and humidity, with irrigation performed via water pumping from a reservoir. The system is based on the M5Core2 development kit for the local station and the IoT platform ThingSpeak for remote access. It features a web user interface consisting of an application developed in HTML using a plugin on ThingSpeak. Thus, the system can be used locally via a touchscreen and remotely through a web browser. Measurements are cross-verified with commercial meters to ensure their reliability, and users are asked to fill out a Technology Acceptance Model (TAM) for IoT to gauge their acceptance level. Additionally, an interview is conducted that explores four critical factors, aimed at understanding their experience and interaction with the system after a period of usage. The findings confirm the validity of the monitored variables and demonstrate a global acceptance rate of slightly over 80%, albeit with varying user acceptance perspectives. Specifically, the technical user exhibits greater acceptance than the crop administrator, evidenced by a mean discrepancy of 1.85 points on the TAM scale.
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