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Publicações

Publicações por CRIIS

2025

Integrating SolidWorks, LabVIEW, and Arduino in Robotics Education

Autores
Coelho J.P.; Coelho J.A.B.; Gonçalves J.;

Publicação
Lecture Notes in Educational Technology

Abstract
This paper explores the integration of SolidWorks, LabVIEW, and Arduino as a comprehensive and cost-effective approach to teaching robotics to undergraduate students. In scenarios where real hardware is unavailable or prohibitively expensive, this methodology offers significant advantages. SolidWorks enables students to design and simulate robotic components in a virtual environment, fostering a deep understanding of mechanical design and engineering principles. LabVIEW provides an intuitive graphical interface for programming and control, allowing students to develop and test their algorithms. Finally, Arduino, as an open-source hardware platform, bridges the gap between virtual simulations and physical implementation, offering a hands-on experience with minimal financial investment. Together, these tools create a robust educational framework that enhances theoretical knowledge through practical application, encourages innovation, and prepares students for real-world engineering challenges. The paper concludes that this integrated approach not only mitigates the limitations of resource constraints but also enriches the learning experience by providing a versatile and accessible platform for robotics education.

2025

Virtual Reality-Based Teleoperation System for Robot Forklifts

Autores
Couto, MB; Petry, MR; Mendes, A; Silva, MF;

Publicação
2025 IEEE INTERNATIONAL CONFERENCE ON AUTONOMOUS ROBOT SYSTEMS AND COMPETITIONS, ICARSC

Abstract
The growing reliance on e-commerce and the demand for efficient intralogistics operations have increased the need for automation, while labour shortages continue to pose significant challenges. When combined with the inherent risks of forklift operation, this circumstance prompted businesses to look for robotic solutions for intralogistics tasks. However, robots are still limited when they come across situations that are outside of their programming scope and often need assistance from humans. To achieve the long-term goal of enhancing intralogistics operation, we propose the development of a virtual reality-based teleoperation system that allows remote operation of robot forklifts with minimal latency. Considering the specificities of the teleoperation process and network dynamics, we conduct detailed modelling to analyse latency factors, optimise system performance, and ensure a seamless user experience. Experimental results on a mobile robot have shown that the proposed teleoperation system achieves an average glass-to-glass latency of 368 ms, with capturing latency contributing to approximately 60% of the total delay. The results also indicate that network oscillations significantly impact image quality and user experience, emphasising the importance of a stable network infrastructure.

2025

Methodology and Challenges of Implementing Advanced Technological Solutions in Small and Medium Shipyards: The Case Study of the Mari4_YARD Project

Autores
Grazi, L; Alonso, AF; Gasiorek, A; Llopis, AMP; Grajeda, A; Kanakis, A; Vidal, AR; Parri, A; Vidal, F; Ergas, I; Zeljkovic, I; Durá, JP; Mein, JP; Katsampiris-Salgado, K; Rocha, LF; Rodriguez, LN; Petry, MR; Neufeld, M; Dimitropoulos, N; Köster, N; Mimica, R; Fernandes, SV; Crea, S; Makris, S; Giartzas, S; Settler, V; Masood, J;

Publicação
ELECTRONICS

Abstract
Small to medium-sized shipyards play a crucial role in the European naval industry. However, the globalization of technology has increased competition, posing significant challenges to shipyards, particularly in domestic markets for short sea, work, and inland vessels. Many shipyard operations still rely on manual, labor-intensive tasks performed by highly skilled operators. In response, the adoption of new tools is essential to enhance efficiency and competitiveness. This paper presents a methodology for developing a human-centric portfolio of advanced technologies tailored for shipyard environments, covering processes such as shipbuilding, retrofitting, outfitting, and maintenance. The proposed technological solutions, which have achieved high technology readiness levels, include 3D modeling and digitalization, robotics, augmented and virtual reality, and occupational exoskeletons. Key findings from real-scale demonstrations are discussed, along with major development and implementation challenges. Finally, best practices and recommendations are provided to support both technology developers seeking fully tested tools and end users aiming for seamless adoption.

2025

ASV AeroCat: Improvements for Cooperation with Aerial Vehicles

Autores
Silva, JM; Oliveira, VEF; Schettino, VB; Petry, MR; Mercorelli, P; Neto, AFD;

Publicação
2025 13TH INTERNATIONAL CONFERENCE ON CONTROL, MECHATRONICS AND AUTOMATION, ICCMA

Abstract
This paper presents the enhanced version of the ASV AeroCat, an autonomous surface vehicle (ASV) of the catamaran type, now adapted for collaborative operations with aerial vehicles. The modifications introduced aim to meet the growing demand from industry and academia for solutions focused on collaboration between heterogeneous vehicles. Specifically, the improved vessel is capable of operating autonomously and collaboratively in monitoring activities, cargo transport, and as a platform for aircraft takeoff and landing. The paper details the improvements made to the original vessel, the developed collaboration topology, and the experimental validation conducted in a real-world environment. The results demonstrate that the ASV AeroCat can operate both independently and in synergy with an aerial vehicle, highlighting its potential for a wide range of applications.

2025

Experimental Evaluation of an Overactuated Quadrotor TiltRotor Using a Didactic Gyroscopic Testbench

Autores
de Carvalho Junior, AJ; Dos Santos, MF; Mystkowski, A; Mercorelli, P; de Mello Honório, L; Petry, R;

Publicação
2025 29th International Conference on System Theory, Control and Computing, ICSTCC 2025 - Proceedings

Abstract
This paper presents the experimental validation of an overactuated Quadrotor TiltRotor (QTR) prototype through a testbench experiment focused on angular stability analysis. The QTR incorporates an additional degree of freedom via four servomotors, enabling enhanced maneuverability and effective disturbance rejection. The experiment was conducted under controlled conditions to evaluate roll, pitch, and yaw stability, with full battery charge and predefined initial orientations. Also, the system relies on a Fast Control Allocation (FCA) strategy to distribute control efforts among redundant actuators in real time optimally. Then, the results confirm the effectiveness of the proposed overactuated architecture in maintaining stability, accurately tracking setpoints, and handling actuator saturation. These findings support the viability of the QTR design for future applications in cooperative robotic systems and autonomous aerial missions. © 2025 IEEE.

2025

Towards an Artificial Intelligence System for Automated Accessory Removal in Textile Recycling: Detecting Textile Fasteners

Autores
Lopes D.; Silva M.F.; Rocha L.F.; Filipe V.;

Publicação
IEEE International Conference on Emerging Technologies and Factory Automation ETFA

Abstract
The textile industry faces economic and environmental challenges due to low recycling rates and contamination from fasteners like buttons, rivets, and zippers. This paper proposes an Red, Green, Blue (RGB) vision system using You Only Look Once version 11 (YOLOv11) with a sliding window technique for automated fastener detection. The system addresses small object detection, occlusion, and fabric variability, incorporating Grounding DINO for garment localization and U2-Net for segmentation. Experiments show the sliding window method outperforms full-image detection for buttons and rivets (precision 0.874, recall 0.923), while zipper detection is less effective due to dataset limitations. This work advances scalable AI-driven solutions for textile recycling, supporting circular economy goals. Future work will target hidden fasteners, dataset expansion and fastener removal.

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