José Varela Aldás

• Doctor of Engineering
• Researcher at Universidad Indoamérica

The efficient sizing and characterization of the load curves of distribution transformers are crucial challenges for electric utilities, especially given the increasing variability of demand, driven by emerging loads such as electric vehicles. This study applies clustering techniques and predictive models to analyze and predict the behavior of tran...

Wireless sensor networks (WSNs) are fundamental for modern IoT applications, yet they remain highly vulnerable to jamming attacks, which significantly degrade communication reliability and energy efficiency. This paper proposes a novel adaptive cluster-based jamming mitigation algorithm designed for heterogeneous WSNs that integrate LoRa and Blueto...

The Internet of Things (IoT) applications are pervasive across various sectors; however, there remains some resistance to its adoption. Education 4.0 promotes the full integration of new technologies, both as tools for learning and instruments for professional development. This work studies the influence of higher education on the willingness towar...

This study proposes a comprehensive framework for the identification of nonlinear dynamics in Unmanned Aerial Vehicles (UAVs), integrating data-driven methodologies with theoretical modeling approaches. Two principal techniques are employed: Proportional-Derivative (PD)-based control input approximation and Sparse Identification of Nonlinear Dynami...

Multiple modalities offer the advantage of providing complementary visual information that enhances overall understanding. This capability is particularly valuable in the domain of autonomous tumor detection. However, the challenge of occlusions in autonomous tumor perception—especially in cases of tumor-to-tumor occlusion—hinders the effective uti...

An Image-Based Visual Servoing Control (IBVS) structure for target tracking by Unmanned Aerial Vehicles (UAVs) is presented. The scheme contains two stages. The first one is a sliding-model controller (SMC) that allows one to track a target with a UAV; the control strategy is designed in the function of the image. The proposed SMC control strategy...

With the fast-growing interconnection of smart technologies, the Industrial Internet of Things (IIoT) has revolutionized how industries work by connecting devices and sensors and automating regular operations via the Internet of Things (IoTs). IoT devices provide seamless diversity and connectivity in different application domains. This system and...

Interface engineering maximizes user experience by defining the form, function, and interfaces utility. Current interfaces have not optimized user-system interaction. This study aimed to develop a compatible and user-friendly interface to improve user efficiency. Android Studio was used to create a simple and functional interface. The commands comb...

This work presents an in-depth evaluation of the telecommunications landscape in Mexico from 2015 to 2023. The study’s primary focus is on the disparities in broadband access, telecommunications infrastructure, and digital inclusion across various regions, particularly between urban and rural areas. By employing predictive models and correlation an...

This research explores the application of wireless sensor networks for the non-invasive monitoring of sleep quality and vital signs in elderly individuals, addressing significant challenges faced by the aging population. The study implemented and evaluated WSNs in home environments, focusing on variables such as breathing frequency, deep sleep, sno...

With the fast-growing interconnection of smart technologies, the Industrial Internet of Things (IIoT) has revolutionized how the industries work by connecting devices and sensors through automating regular operations via the Internet of Things (IoTs). IoT device provides seamless diversity and connectivity in different application domains. This sys...

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...

Background The increase in cases of mild cognitive impairment (MCI) underlines the urgency of finding effective methods to slow its progression. Given the limited effectiveness of current pharmacological options to prevent or treat the early stages of this deterioration, non-pharmacological alternatives are especially relevant. Objective To assess...

The purpose of this study was to assess how different storage conditions and types of containers affect blackberries (Rubus Glaucus), fruits that are particularly susceptible to post-harvest deterioration. Comparisons were made between two temperature conditions: room temperature (19 °C) and refrigeration (4 °C), and three types of container materi...

This work marks a significant advancement in the field of cognitive science and gaming technology. It offers an in-depth analysis of the effects of various video game genres on brainwave patterns and concentration levels in virtual reality (VR) settings. The study is groundbreaking in its approach, employing electroencephalograms (EEGs) to explore...

The production of Explorer roses has historically been attractive due to the acceptance of the product around the world. This species of roses presents high sensitivity to physical contact and manipulation, creating a challenge to keep the final product quality after cultivation. In this work, we present a system that combines the capabilities of i...

This research paper delves into the effectiveness and impact of behavior change techniques fostered by information technologies, particularly wearables and Internet of Things (IoT) devices, within the realms of engineering and computer science. By conducting a comprehensive review of the relevant literature sourced from the Scopus database, this st...

The photovoltaic (PV) industry is seeing a significant shift toward large-scale solar plants, where traditional inspection methods have proven to be time-consuming and costly. Currently, the predominant approach to PV inspection using unmanned aerial vehicles (UAVs) is based on the capture and detailed analysis of aerial images (photogrammetry). Ho...

This work describes the documentary synthesis of the design and adaptation of an industrial environment of an automatic car washing machine with tunnel type structure. The same one that has four stations properly distributed, with respect to the time and operation of the mechanisms of the washer with the objective of improving the operation of the...

This document shows the development of the simulation of an automated bottle filling and sealing system in order to monitor and supervise the behavior of each stage of the process using the Unity 3D software. In addition, the implementation the Modbus RTU network, which will be communicated to the PLC, applying Ladder programming through the Tia Po...

This paper describes the implementation of the Hardware in the Loop technique, which in the automation area allows communication between a simulated industrial process (software) and a programmable logic controller, PLC, (Hardware). The simulation section consists of TIA PORTAL for the automation of the paint mixing process, while the visualization...

Purpose: Assistive technologies based on IoT can contribute to improve quality of living of patients with severe motor difficulties by providing partial or total independence. The aim of this work was to analyse the usability and performance of an assistive system based on the IoT when is evaluated by a child patient with spinal muscular atrophy t...

Commercial educational robots provide an accessible entry point into the world of robotics. However, their programming is often limited to specific platforms, which can make it challenging to acquire the skills necessary for industry and research. In this study, we introduce an open-access tool developed using C++ and Arduino IDE that enables us to...

Recent technological advances have brought increased attention to aerial robotic manipulators (ARMs), particularly in applications involving physical interactions. However, translating control algorithms into real-world applications for aerial robotic manipulators may prove challenging, given the potential for accidents and the time-consuming natur...

This article proposes an enhancement to estimate unmodeled dynamics within the simplified dynamic model of a quadcopter by integrating three key methodologies: Nonlinear Model Predictive Control (NMPC), a Momentum Observer Dynamics (MOD), and an adaptive control law. Termed as Adaptive NMPC with MOD, this integrated approach leverages NMPC, impleme...

Background In recent years, the use of virtual reality (VR) as a complementary intervention in treating cognitive impairment has significantly increased. VR applications based on instrumental activities of daily living (iADL-VR) could offer a promising approach with greater ecological validity for intervention in groups with cognitive impairments....

Recent advancements in mobile robot research have resulted in the development of precise robot control tools, while information technology research has focused on the Internet of Things (IoT) in the context of the fourth industrial revolution. This study evaluates a user interface designed for remote control of the Crowbot BOLT robot. This robot ut...

Background Loss of cognitive and executive functions is a problem that affects people of all ages. That is why it is important to perform exercises for memory training and prevent early cognitive deterioration. The aim of this work was to compare the cognitive performance of the participants after an intervention by using two mnemonic techniques to...

Internet of things platforms is essential components for project development with connectivity. Thus, these have positioned themselves in the market by offering multiple cloud services, such as a database, application programming interface, and more. This paper presents a system that collects data from air concentration sensors to detect the presen...

The thermal processes are characterized by generating a slow first-order response; these are stable systems. This characteristic favors controlling and monitoring the temperature in all ranges, dispensing with expensive devices to automate these processes. Thus, multiple low-cost proposals meet the technical requirements and include industry 4.0 fe...

The Internet of Things has been a trend in the last decade and is now found in countless applications, solving problems in almost any field. Specifically, in the commercial area, there is an effort to apply this technology to facilitate the control of services or processes. This work presents the movement monitoring of commercial areas. The proposa...

The internet has contributed with the development of various economic sectors, one of the most important is the sale of products and services. This research aims to present two types of sales, that can be done online and through the use of social media, which can favor businesses in their growth. The objective of this work is to carry out an analys...

The Internet of Things applications have benefited from the new integrated systems available on the market and the monitoring of electrical variables has become a necessity in the domestic and industrial fields. For this reason, this work presents the monitoring of electrical parameters using an M5Stack Core2 device. To obtain the electrical parame...

The cold rooms for the storage of chicken meat for human consumption are controlled systems to maintain the cold to guarantee the product's quality and take care of food safety. This article presents a system for monitoring and classifying the temperature of a cold room and the level of ice generation to keep the cold room in the right conditions....

Non-Orthogonal Multiple Access (NOMA) has become a promising evolution with the emergence of fifth-generation (5G) and Beyond-5G (B5G) rollouts. The potentials of NOMA are to increase the number of users, the system’s capacity, massive connectivity, and enhance the spectrum and energy efficiency in future communication scenarios. However, the pract...

Few works analyze the parameters inherent to immersive virtual reality (IVR) in applications for memory evaluation. Specifically, hand tracking adds to the immersion of the system, placing the user in the first person with full awareness of the position of their hands. Thus, this work addresses the influence of hand tracking in memory assessment wi...

This article presents the design and virtualization of a water bottle packing plant in the Unity software, with the implementation of an automated system with human-machine interface - supervision, control and data acquisition (HMI) for the water bottling process, where, through the use of SolidWorks software, the bottling plant was created and exp...

Technological evolution and the latest advances in science focused on industry have been growing each day; by now, we use terms such as “Industry 4.0”, this has meant innovation at the production level, industrial control, and virtualization of more precise environments. In the present work, Hardware in The Loop (HIL) technique was used for the imp...

Transport, rescue, search, surveillance, and disaster relief tasks are some applications that can be developed with unmanned aerial vehicles (UAVs), where accurate trajectory tracking is a crucial property to operate in a cluttered environment or under uncertainties. However, this is challenging due to high nonlinear dynamics, system constraints, a...

This paper proposes the construction of the software and hardware of an omnidirectional mobile robot with the ability to receive linear and angular velocity commands to move from one place to another. In the prototype can be used controllers suitable for their configuration, capable of performing movements of the omnidirectional platform for the ex...

Process automation allows to increase production and improve the quality of craft products. This paper presents the implementation of closed-loop control algorithms for a mashing and brewing plant of craft beer. The proposed control scheme is implemented through the HIL technique, for which a virtual environment that simulates the behavior of the i...

One of the main issues of visual servoing schemes occurs when the target objects leave out the field of view (FOV) of the camera, which causes failure or poor performance of the controller. Solving this problem can be a challenge due to traditional controllers cannot include system's constraints. This work presents model predictive control (MPC) fo...

Environmental working conditions are of crucial importance for job performance. Thus, thermal comfort helps the human body to withstand long working hours without stress. There are several indicators of heat stress, but one of the most complete is the WBGT (Wet Bulb Globe Temperature) index, which considers 3 temperatures to determine the heat stre...

The consumption of electrical energy is important in the economy of the home and the internet of things facilitates real-time remote monitoring of electrical parameters. This document performs the analysis of electrical energy consumption in a domestic installation based on the data measured in 2 electrical distribution inputs, this information is...

The intelligent analysis of electrical parameters has been facilitated by the Internet of Things (IoT), with capabilities to access a lot of data with customized sampling times. On the contrary, binary classifiers using support vector machines (SVM) resolve nonlinear cases through kernel functions. This work presents two binary classifiers of prese...

The COVID-19 pandemic has shown that the use of the technology in medicine is no longer a luxury, but a necessity. The use of the robotics in the treatment of diseases and physical therapies is limited in Latin America due to the high acquisition and maintenance costs. This document proposes the design, development, and evaluation of a robotic syst...

Energy monitors are indispensable for achieving efficient electrical grids and even more so in the age of the Internet of Things (IoT), where electrical system data are monitored from anywhere in the world. This paper presents the development of a two-channel electrical parameter-monitoring system based on the M5 Stack Core2 kit. The acquisition of...

This article presents a non immersive virtual laboratory to emulate the behavior of Mitsubishi Melfa RV 2SDB robotic arm, allowing students and users to acquire skills and experience related to real robot, augmenting the access and learning of robotics in Universidad de las Fuerzas Armadas (ESPE). It was developed using the mathematical model of th...

Power grids continue to develop and it is increasingly difficult to guarantee the quality of service offered to the user. In several developing countries, consumption is calculated on the basis of visual inspection, which is prone to errors. Consequently, this document outlines the construction of electrical consumption telemetering equipment. This...

Background and Objective Virtual Reality (VR) has the capacity to be used in cognitive rehabilitation interventions for diagnostic and training purposes. This technology allows the development of proposals that traditionally have been only implemented using physical elements that imply greater resources and a lesser degree of automation. This work...

Accurate trajectory tracking is a critical property of unmanned aerial vehicles (UAVs) due to system nonlinearities, under-actuated properties and constraints. Specifically, the use of unmanned rotorcrafts with accuracy trajectory tracking controllers in dynamic environments has the potential to improve the fields of environment monitoring, safety,...

The use of voltammetric electronic tongues (VET) in the food industry is becoming more frequent, being used both for the identification of substances such as antioxidants or phenols, as well as in the case of sensory analysis simulation applications to help with quality control analysis or development of new products. In this work VET developed by...

Voltammetric electronic Tongues (VET) are widely used on the industry, especially when focused on sample classification, adulteration recognizement and quality control, a VET equipment developed by the Interuniversity Institute of Molecular Recognition and Technological Development of the UPV-UV (IDM) was employed to develop the study, the results...

This work develops a system consisting of a mobile application and an automatic gate implemented with low-cost technology. The devices are linked to a cloud server through the internet. The design of the system consists of a gate that incorporates a motion sensor to detect the pet, for this a passive infrared sensor is used. The electronic circuit...

Today, children are exposed to many dangers, so it is necessary to know their current location continuously. New technology allows connection to the internet almost anywhere, this can be used to track people through a remote device. Mobile apps have become popular with the help of ever-cheaper smartphones. This work develops a wearable device in th...

Today it can still be seen that the lack of technology in old and low-cost vehicles does not allow basic security remote monitoring. For this reason, it is necessary to update its technology, installing electronic systems based on free hardware to perform readings in the vehicles. In addition, mobile devices allow viewing this information remotely...

The occupations of the modern world neglect important things like the environment and sustainable development. This work develops a monitoring system for plants, based on a smart plant pot that can be supervised and configured through a mobile application. The electronic design consists of the use of two sensors that constantly send the temperature...

The need for a technological system for health care for sick people is evident. This work develops a scale prototype of a smart bed controlled through a mobile application. The electronic design consists of two servomotors that act to position the bed; these actions can be activated through the mobile application. At the same time, the patient can...

Home security has increased in recent years with the help of technology. Even more, the appearance of the internet of things (IoT) allows it to control and monitor devices from anywhere in the world. This work develops a proposal that alerts the user about the status of a door through a mobile application using low-cost devices. For the electronic...

In this work, we analyze the income tax in Ecuador in 2020, which was affected simultaneously by two factors: the economic crisis caused by COVID-19 and the implementation of a new tax system. The objective is to evaluate the effects of these factors on the economic status of a group of taxpayers and the difference in tax payments compared with pre...

The present work proposes the use of the statistical method of frequency ratio (RF) and the hierarchical analytical process (AHP) to obtain zoning maps of the landslide processes, determining the susceptible areas in the territory of the Cayambe canton located in the province of Pichincha in Ecuador. Statistical methods use sample data based on the...

Tisaleo canton in Ecuador produces 1893.55 tons of blackberry (Rubus glaucus) per year. In this work, the design of a blackberry pulp production plant is presented, using the systematic layout planning methodology, which allows to identify, assess and visualize all the elements involved in the implantation and the relationships between these. Withi...

Memory rehabilitation involves the processes of memory assessment and training. Nowadays, with the help of technology, customized applications can be designed, but they require an efficient prior design. This paper presents the design of an application for memory rehabilitation using the method of Loci. In the development of the methodology three s...

Dementia is a brain disorder that affects older individuals in their ability to carry out their daily activities, such as in the case of neurological diseases. The main objective of this study is to automatically classify the mood of an Alzheimer's patient into one of the following categories: wandering, nervous, depressed, disoriented, bored or no...

This article presents the design of PID, fuzzy and MPC control algorithms for the temperature process of an electric oven with the objective of comparing operational and economic indexes. The controllers are implemented using the hardware in the loop technique that considers the virtualization of the process in the Unity 3D graphics engine. The dev...

This work focuses on the design and implementation of a control algorithm for tracking trajectories of an omnidirectional robotic platform. The design is based on a dynamic model that considers the center of mass displaced; this model is obtained by formulating Euler–Lagrange considering the kinetic energy that acts on the robotic system. This type...

In this paper a realistic and intuitive virtual environment of a distillation tower system is developed. The three-dimensional model of the system is based on a real system, which is replicated in Blender software to be later implemented in Unity, in order to simulate its behavior. By showing the evolution of the system, control and monitoring mane...

This article presents the control and virtualisation of a double effect evaporator plant oriented to teaching-learning processes. A virtual process with similar characteristics to a real one is implemented using CAD tools and the Unity 3D graphic engine, with the aim of simulating the behaviour of an industrial process, specifically, a double effec...

This article developed the implementation of a controller for a Perfectly Stirred Reactor (CSTR) for the production of Cyclopentene, through a 3D virtual environment, oriented to the teaching-learning process which allows an immersion to the industrial field. The non-linear process modeling is considered in order to implement a closed loop control...

Precision shooting training is conventionally done at outdoor shooting ranges. There are also virtual training grounds that use weapons and scenarios that do not provide a completely real experience. When the practitioner begins training, the waste of ammunition represents an economic inconvenience both for him and for the training center. For this...

The control of entry to commercial premises has always existed, but with the pandemic, this has been adapted to include biosecurity measures that guarantee the safety of customers. Technology makes it possible to automate these activities, among the most popular tools are mobile applications that allow easy implementation and good reception from us...

The aim of the present study was to classify samples of sugar with different concentrations through a Voltammetric Electronic tongues (VET), with a generic pulse sequence consisted of 22 pulses ranging from –1000 mV to + 1000 mV with a duration of 20 ms/pulse over different samples such as 1.25mM, 2.5mM, 5mM and 10mM, of sucrose concentration, thes...

Cooperative control of mobile robots allows to transport heavy loads collaboratively between 2 or more robots, these applications have motivated the development of new control strategies to coordinate multiple robots automatically. On the other hand, energy optimization in robotic systems is increasingly important to ensure autonomy and take care o...

Since cancellation of face-to-face education during the health emergency caused by COVID-19, higher education institutions, have had to guarantee the right to education through virtualization. Therefore, this work analyzes the teaching-learning process adapted to the virtual mode in the students of technical subjects of the professionalizing axis i...

The acquisition of controllers offered by manufacturers represents a high cost for the user and presents limitations for development. Therefore, in this work we propose the development of an electronic controller for the ScorBot ER_4U robotic arm operation. The programs are elaborated in C language, in the ESP-IDF development environment, which all...

In the face of the COVID-19 pandemic, the World Health Organization (WHO) declared the use of a face mask as a mandatory biosafety measure. This has caused problems in current facial recognition systems, motivating the development of this research. This manuscript describes the development of a system for recognizing people, even when they are usin...

At present, electrical network stability is of the utmost importance because of the increase in electric demand and the integration of distributed generation deriving from renewable energy. In this paper, we proposed a static reactive power compensator model with common direct current voltage sources. Converter parameters were calculated and design...

Tensile tests make it possible to determine the resistance and other relevant parameters of the materials. These procedures are usually performed with equipment that is expensive and inaccessible to higher education centers with limited budgets. In the case of acquiring this hardware, the disadvantage is that this are purely manual machines that ma...

Georeferenced tools have made it possible to use the information collected through e-collaboration environments in a better way. Nevertheless, no study has been found on quantifying the influence of software tools over the capacity of interpreting data of victims of some kind of felony. This paper aims to validate the technology acceptance of appli...

At the end of 2019, a highly contagious virus appears, changing the form of interaction between humans, this has implied the use of technology as a support tool to counteract the effects of the new disease (COVID-19). Although many technologies have been successfully adapted, applied robotics promises to reduce or even eliminate the need for person...