{"title":"Average Power as an Alternative Variable for Power grip Control in Robotic Hands Without Using Force Measurements","authors":"Juan Felipe Solarte;Carlos Gaviria","doi":"10.1109/TLA.2025.11194777","DOIUrl":"https://doi.org/10.1109/TLA.2025.11194777","url":null,"abstract":"Power grip is one of the fundamental functionalities of a robotic hand prosthesis, as it is essential for performing various activities of daily living. This study proposes the use of the average electrical power consumed by the actuators as a variable correlated with grip force in mechanisms with an effective degree of freedom equal to one. This approach enables the implementation of closed-loop grip force control schemes without the need for force sensors. To evaluate the performance of the proposed method, a five-finger underactuated robotic hand prototype was developed, along with a cascade control scheme to track an average power reference. The system was implemented in the Simulink environment of Matlab, using an Arduino Mega 2560 board for signal acquisition and actuator control. The powerforce relationship was validated using a variable stiffness device, in accordance with recommendations from a standardized protocol for evaluating the quality of robotic hand prostheses. The results show that average electrical power exhibits a stronger correlation with grip force than electric current, which has been used for similar purposes in previous studies. This work addresses the challenge of controlling grip force without force sensors, introducing a variable that has not been previously exploited for this purpose","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 11","pages":"1121-1130"},"PeriodicalIF":1.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11194777","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Felipe Rubio;Juan M. Rey;Julian Rodriguez-Ferreira;Natalia Duarte;Iván Hernández
{"title":"Design and Implementation of an IIoT-based Monitoring System for a Remote Radio Astronomy Station: The CASIRI Case Study","authors":"Felipe Rubio;Juan M. Rey;Julian Rodriguez-Ferreira;Natalia Duarte;Iván Hernández","doi":"10.1109/TLA.2025.11150605","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150605","url":null,"abstract":"Industry 4.0 has progressed rapidly due to advances in the Internet of Things (IoT), which have significantly reduced implementation costs while enhancing technological capabilities. These developments have fostered the emergence of the Industrial Internet of Things (IIoT), particularly within scientific and industrial domains. In response to the growing demand for skilled professionals in this field, this paper presents the design and implementation of an IIoT-based monitoring system for the CASIRI radio astronomy station, a mobile platform used to characterize potential sites for radio observatories in Colombia and Antarctica. The proposed system is integrated into a broader IIoT platform designed to support both operational monitoring and educational activities. The IIoT solution features real-time data acquisition, robust hardware and software components, and reliable communication protocols within a modular and scalable architecture. Its performance and component interoperability were validated through a series of experimental tests under simulated conditions. Additionally, this work introduces educational guides to facilitate hands-on training in Fourth Industrial Revolution technologies.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"865-876"},"PeriodicalIF":1.3,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150605","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hybrid GEO-PO Algorithm for Dual-Input Wireless Power Transfer and Photovoltaic-Fed DC-DC Converter in Electric Vehicle Charging Applications","authors":"Ganesh Babu Mattaparthi;Srinivasa Rao Nayak P","doi":"10.1109/TLA.2025.11150632","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150632","url":null,"abstract":"The increasing demand for efficient and sustainable electric vehicle (EV) charging solutions has driven the development of advanced multi-input charger systems. This paper introduces a closed-loop EV charger powered by dual energy inputs, i.e., wireless power transfer (WPT) and photovoltaic (PV) sources. The dual-input charger integrates these energy sources to ensure stable and efficient constant voltage battery charging. The output voltage is continuously compared with the required EV battery charging voltage and regulated using a proportional-integral (PI) controller. To address the nonlinear and dynamic characteristics of the input sources, a novel Hybrid GEO-PO optimization algorithm, which combines the strengths of the Golden Eagle Optimizer (GEO) and the Puma Optimizer (PO), is proposed to determine the optimal PI controller parameters. MATLAB/Simulink simulations and experimental validation demonstrate that the Hybrid GEO-PO algorithm outperforms its parent algorithms in regulating EV battery charging voltage. The hybrid algorithm achieves faster response times, lower overshoot, and enhanced robustness compared to the standalone GEO and PO algorithms. Additionally, the successful implementation of the system using an FPGA controller highlights its practicality and suitability for real-world applications. This study establishes the Hybrid GEO-PO algorithm as a superior and promising approach for optimizing dual-input EV chargers, paving the way for next-generation intelligent charging infrastructure.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"888-900"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150632","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Didactic Hardware in the Loop Platform: A Low-Cost Open-Source Approach","authors":"Shadai Ojeda-Mancera;Jesus Carranco-Martínez;Víctor Sámano-Ortega;Juan Martínez-Nolasco;Coral Martínez-Nolasco;Mauro Santoyo-Mora","doi":"10.1109/TLA.2025.11150634","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150634","url":null,"abstract":"In evaluating and validating a physical system, real-time Hardware in the Loop (HIL) emulation offers advantages such as time and cost reduction, fault prevention, and the ability to conduct validations in an environment similar to its final application. On the other hand, low-cost technologies such as microcontrollers, digital signal processors, and FPGAs have been employed to leverage the advantages of HIL emulation in the teaching process. This article describes the implementation of a low-cost, open-access HIL didactic platform for use in subjects such as differential equations, systems dynamics, and control systems, among others. The platform is based on a Raspberry Pi Pico development board and features a graphical user interface (GUI). In the GUI, the user can visualize graphs of the emulated systems variables and real-time animation of its state and export the acquired data to a comma-separated file. The functionalities offered by the platform make it an affordable tool that allows users to evaluate the response of a dynamic system, whether it is open-loop or closed-loop, without the need for classrooms or specialized equipment. Unlike similar works where HIL techniques with low-cost hardware are employed for educational purposes, the proposal in this work is more cost-effective and integrates the described GUI. All the files necessary for implementing the didactic platform are openly available in a public repository, including those needed for PCB manufacturing.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"910-921"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150634","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and validation of a hybrid MPPT algorithm for PVS using an interleaved boost converter","authors":"Luis Enrique Hernandez Aguilar;Gerardo Vazquez Guzman;Panfilo Raymundo Martinez Rodriguez;Dalyndha Aztatzi Pluma","doi":"10.1109/TLA.2025.11150626","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150626","url":null,"abstract":"Photovoltaic systems must be highly efficient to transfer the electric power generated to the local loads or to the electrical grid. In partial-shading conditions there are multiple local maximum power points which are not evaluated by conventional MPPT methods producing low efficiency in the photovoltaic system. In this paper a hybrid Particle Swarm Optimization (PSO) based method is proposed. The proposed method allows to locate the global maximum power point enhancing the availability of the generated electrical power and reducing the convergence time compared to the conventional PSO algorithm. The proposed method is compared with classical MPPT algorithms like Hill Climbing (HC), perturb and observe (P and O), incremental conductance (IncCond) and the conventional particle swarm optimization (PSO) method. The comparison is performed by means of numerical simulations and implementing an experimental platform with real photovoltaic panels.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"901-909"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150626","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Detecting Frame Deletion in Videos Using Supervised and Unsupervised Learning with Convolutional Neural Networks","authors":"Jorge Ceron;Cristian Tinipuclla;Pedro Shiguihara","doi":"10.1109/TLA.2025.11150631","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150631","url":null,"abstract":"In recent years, videos have been susceptible not only to any edition but also to a variety of forgeries. One of the most popular video forgeries is frame deletion, in which a group of frames is removed to hide specific actions from the human eye. When frame deletion occurs, videos selected as evidence lose their evidentiary value. This highlights the necessity of automation, especially for analyzing large volumes of videos. Thus, we measure the performance of two deep learning approaches for frame deletion detection. Both of them use Convolutional Neural Networks (CNN): The first one, a supervised 3DCNN model and, the second one, is an unsupervised model compound of VGG-16 and Resnet-50. We evaluated them using 10-fold cross-validation in the following datasets: UCF-101, VIFFD and DTD (Driving Test Dataset), which is our contribution to the data community. To the best of our knowledge, no comparison of both approaches using 10-fold cross-validation has been found in the literature before. Afterward, we analyze the results and make recommendations for future work in this area.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"838-847"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150631","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Over Mejia;Ronald Ceballos;Rhonald Torres;Juan Hoyos
{"title":"Adaptive Navigation System for an Autonomous Vehicle in a Goal-Oriented Environment","authors":"Over Mejia;Ronald Ceballos;Rhonald Torres;Juan Hoyos","doi":"10.1109/TLA.2025.11150628","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150628","url":null,"abstract":"In the context of autonomous navigation, the development of systems that enable vehicles to operate independently in controlled environments is a crucial step toward advancing autonomous technology. This work presents the design, implementation, and validation of a navigation system for autonomous vehicles using NeuroEvolution of Augmenting Topologies (NEAT). The primary objective was to create a vehicle capable of navigating a 2D map with a defined starting point and target. Virtual sensors enable the vehicle to identify navigable paths and boundaries. Distance metrics such as Euclidean, Manhattan, and Chebyshev were employed as reward systems, continuously calculating agent positions. The closer the vehicle is to the target, the higher its fitness score, forming the basis of the fitness function. A forced reinforcement acceleration method was designed and implemented to ensure progress when the vehicle's speed fell below 0.1, preventing it from becoming stalled. Validation tests were conducted to evaluate the system's performance under varying conditions. Results demonstrate that the autonomous vehicle can navigate the map effectively, improving its fitness score in each generation depending on the distance metric used. Chebyshev performed best in obstacle-free environments, while Euclidean excelled in the presence of obstacles. The forced reinforcement method significantly reduced the time required to achieve the target fitness. These findings provide valuable insights for researchers aiming to develop NEAT-based navigation systems for autonomous vehicles.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"848-855"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150628","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Table of Contents October 2025","authors":"","doi":"10.1109/TLA.2025.11150604","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150604","url":null,"abstract":"","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"837-837"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150604","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Roberto Gonçalves de Magalhães Júnior;Rafael Nobre Orsi;Tatiany Marcondes Heiderich;Marina Carvalho de Moraes Barros;Ruth Guinsburg;Carlos Eduardo Thomaz
{"title":"Visual and Pupillary Behavior in Neonatal Pain Assessment using Eye-Tracking","authors":"Roberto Gonçalves de Magalhães Júnior;Rafael Nobre Orsi;Tatiany Marcondes Heiderich;Marina Carvalho de Moraes Barros;Ruth Guinsburg;Carlos Eduardo Thomaz","doi":"10.1109/TLA.2025.11150629","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150629","url":null,"abstract":"This paper introduces the application of novel eyetracking metrics to assess visual attention and cognitive load in neonatal pain assessment. Our goal is to evaluate pediatrician experts, non-experts, and parents using the relative Explore- Exploit Ratio, along with the Task-Evoked Pupillary Response, while analyzing the frontal faces of distinct newborns before and after painful procedures. All the experiments were based on a benchmark image dataset considering clinically relevant areas of interest. The Tobii TX300 system was used to record the eye-tracking data in a closed room with controlled lighting. Our results disclose that the visual attention described by the traditional metrics does not correspond directly to the respective fixation patterns and pupillary changes quantified for all the sample groups of participants investigated, highlighting statistically significant differences in the visual behavior between participants with or without clinical experience only when using the novel metrics proposed instead.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"931-937"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150629","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fernando Aparicio Urbano-Molano;Jaime Velasco-Medina
{"title":"FrodoKEM Hardware Implementation for Post-Quantum Cryptography","authors":"Fernando Aparicio Urbano-Molano;Jaime Velasco-Medina","doi":"10.1109/TLA.2025.11150633","DOIUrl":"https://doi.org/10.1109/TLA.2025.11150633","url":null,"abstract":"FrodoKEM, a key encapsulation mechanism (KEM) based on the learning with errors (LWE) problem, would be included for standardization by the International Organization for Standardization (ISO) and recommended for PQC migration by the BSI (German Federal Office for Information Security) and the ANSSI (French Cybersecurity Agency). It is closely related to the challenging time-computational problem inherent to algebraically unstructured lattices. However, hardware implementations of this scheme are required to verify its effectiveness in real-world applications. To the best of our knowledge, this is the first hardware implementation of FrodoKEM using High-Level Synthesis (HLS), which meets all requirements of the version submitted for standardization to ISO. The proposed design started with the profiling of the reference C software implementation using Valgrind software tools, to identify the functions that are the most time-consuming. The advantages of the proposed implementation include a 34% improvement in the speed metric of the Key Generation module in comparison with the reference software implementation. The results show that the key generation, encapsulation, and decapsulation use 26%, 39%, and 32%, respectively, of the total area utilization on the Artix-7.","PeriodicalId":55024,"journal":{"name":"IEEE Latin America Transactions","volume":"23 10","pages":"922-930"},"PeriodicalIF":1.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11150633","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}