Washington Velasquez

Escuela Superior Politecnica del Litoral · Facultad de Ingeniería en Electricidad y Computación

In this paper, a network design is proposed as part of a reactive system for emergency situations. This implementation includes elements of wired and wireless network communications which are used for sending and receiving information. The main idea behind this design is using the sensor network information (data and topology distribution) for runn...

This paper describes a proof of concept of a Fast-Data architecture to generate early response alerts on unforeseen events.For achieving that, in this work is presented the implementation of a fully integrated system capable to handle and process streaming data in order to generate an alert response for each generated event. The deployment stated a...

This article presents a comprehensive study of human physiology to determine the impact of body mass index (BMI) on human gait. The approach followed in this study consists of a mathematical model based on the centre of mass of the human body, the inertia of a person in motion and the human gait speed. Moreover, the study includes the representatio...

The new coronavirus disease (COVID-19) has affected a large part of the worldwide population, causing more than a million deaths between the end of 2019 until now. Technological development and digital tools arise to carry out activities remotely, either for monitoring or diagnosis. Medical teleconsultation activities are not new, but due to the pa...

Based on the behavior of the quantum particles, it is possible to formulate mathematical expressions to develop metaheuristic search optimization algorithms. This paper presents three novel quantum-inspired algorithms, which scenario is a particle swarm that is excited by a Lorentz, Rosen–Morse, and Coulomb-like square root potential fields, respec...

This Special Issue, entitled "Applications of Machine Learning and Optimization in Energy Sectors", aims to explore the innovative and transformative potential of machine learning (ML) and optimization techniques to address critical challenges within the energy industry. With the increasing global demand for sustainable and efficient energy solutio...

This paper provides a comprehensive review of machine learning strategies and optimization formulations employed in energy management systems (EMS) tailored for plug-in hybrid electric vehicles (PHEVs). EMS stands as a pivotal component facilitating optimized power distribution, predictive and adaptive control strategies, component health monitorin...

The primary contributions of this paper include the systematic organization of existing research and an in-depth analysis of significant milestones in the field of CPPS, leading to the development of a taxonomy for categorizing various drivers. Furthermore, this paper elucidates current strategies for defining clear terms, models, methodologies, an...

The primary contributions of this paper include the systematic organization of existing research and an in-depth analysis of significant milestones in the field of CPPS, leading to the development of a taxonomy for categorizing various drivers. Furthermore, this paper elucidates current strategies for defining clear terms, models, methodologies, an...

The integration of Software-Defined Networking (SDN) technology in Smart Grids has emerged as a transformative approach to modernizing energy infrastructures and enhancing operational efficiency. This comprehensive review paper explores the advancements, challenges, and future perspectives of SDN implementation in Smart Grid environments. It delves...

This paper presents a system that analyzes a real-time captured image of a burning forest and produces an answer about which trees are burning, obtaining the tree species and the state of life (healthy, burning, or burnt). An architecture was implemented using several technologies that communicate with each other, exchanging data that generates a m...

World Health Organization (WHO) studies indicate that people with pre-existing diseases are prone to suffer the severity of the effects of COVID-19 in case of infection. This work presents a mobile application development through open-source software and machine learning techniques for the prediction of the COVID-19 severity in an individual based...

Communication difficulties in people with hearing disabilities can cause anxiety, isolation, and even frustration. Their environment plays an essential role in personal and professional development. This paper proposes the deployment of a sign language interpretation system with a high-availability computational architecture for environment automat...

This paper aims to present a robust algorithm developed that aims to minimize the number of sensor nodes in a WSN using three quantum-behaved swarm optimization techniques based on Lorentz (QPSO-LR), Rosen–Morse (QPSO-RM), and Coulomb-like Square Root (QPSO-CS) potential fields. The algorithm aims to allocate the minimum number of wireless sensors...

As the installation of solar-photovoltaic and wind-generation systems continue to grow, the location must be strategically selected to maintain a reliable grid. However, such strategies are commonly subject to system adequacy constraints, while system security constraints (e.g., frequency stability, voltage limits) are vaguely explored. This may le...

Open-source technologies enable communication channels between web platforms and innovative architectures to provide reliable data distribution, in which healthcare applications can particularly benefit from them. This work presents a communication channel design to improve the user experience about telemedicine apps, especially when patients are i...

This paper states a digital model of a forest to analyze fire behavior using variables such as the rate of combustion and the time it takes for a species to be wholly burned. A simulation environment of a wooded area was designed that includes native species of a protected forest, where the height, diameter, and density are considered in each speci...

In the last two decades, the number of strategies for planning the maintenance of power systems have increased considerably. As societal dependence on power system infrastructure continues to grow, there is an increased need to identify the best practices in the field of power system maintenance planning to ensure the continued reliable operation o...

Ultra-high voltage at transmission systems enables to reduce the electrical power losses due to the Joule effect. However, if the environment is not the proper (i.e., polluted, high humidity, high temperatures, etc.) this fact may lead to an air ionization causing a Corona discharge. As a result, electromagnetic parameters in the transmission line...

This paper states an innovative proposal of a simulation/emulation tool for wireless sensor networks for getting real environmental data. The sensor network’s creation and design use a mathematical model that optimizes the sensor nodes’ location through geographic coordinates (latitude, longitude). The software uses a distributed computational arch...

This paper describes a prototype application to use different algorithms for creating optimal evacuation routes in the presence of a wildfire with a dynamic event-based update. The application uses a meteorological API that obtains real-time temperature, atmospheric pressure, humidity, speed, and wind direction of each location within an area using...

This paper proposes an innovative algorithm for the determination of the optimal outdoor evacuation routes in hills. The algorithm uses web services to obtain the Google Image Tile (a portion of the area to evaluate) and each area’s geographic information. Then, the routes are calculated using cellular automata in 3D and graph theory with geographi...

This paper states the model of a computational architecture using the FIWARE platform to be incorporated into renewable energy systems to monitor variables such as power, current, temperature, and more, allowing the evaluation and recognition of patterns that generate notifications in case of an emergency. The results indicate that the architecture...

In the last two decades, different organizations have used computing management resources systems based on client-server architecture. The Escuela Superior Politécnica del Litoral uses a computer management system; which has been adapted to versions Windows OS to manage computer labs. However, these adaptations have not considered improvements in t...

Nowadays, Smart Cities are attracting much interest of researchers and also in the industry. One of the main reasons is the fact that this paradigm offers vast possibilities for been applied in many sectors like transportation, public service, healthcare, and others. Currently, almost all attention in the academic and business are put into the deve...

This document discusses three aspects that intervene in the sustainable development of a city such as Technology, Health, and the potential Natural Risks that threaten such progress. In the first context, it focuses on describing the techniques and technologies used in a smart environment, including Sensor Networks, Internet of Things (IoT), Data P...

This paper states the research done in building a Wildfire Propagation Simulation tool able to present graphically, how the fire will be propagated in case of a wildfire. The core of this tool was developed using Cellular Automata (CA) relayed on mathematical foundations for modeling the propagation and the transition rules of the CA. Also, the mat...

Proactive routing protocols are commonly used in wireless sensor networks due to their main feature is distributing information very quickly. However, most of the implementations using these protocols do not guarantee the robustness that unexpected emergencies required. In this paper, it tries to model a wireless sensor network implemented in a thr...

This paper states an experimental research that establishes a relationship between the Body Mass Index (BMI) and human walking. Its mathematical formulation employs bio-mechanical anthropometry concepts. To validate the results in a realistic scenario, a novel algorithm that uses graph theory is proposed. This allows us to obtain the optimal route...

This paper presents a simulation that models the satisfactory evacuation index of elderly people in case a building structure is affected by an earthquake. The simulation considers some parameters like earthquake magnitude, Body Mass Index (BMI), person location inside the building, and current evacuation routes. To determine if a person inside the...

Nowadays, the Internet of Things (IoT) has become a very useful technology to act in situations of danger. This has allowed the implementation of devices composed of multiple sensors, whose purpose is to monitor environments and trigger alerts in an emergency. This document details the process of designing a tool that allows visualizing events deri...

In this paper, we present an analysis of the different database systems for storing the information gather by a wireless sensor network. In this work we present different test scenarios in order to evaluate the Fetch Time and the use of Mebibyte in Relational (MySQL, PostgreSQL) and No-SQL (MongoDB, Couch, Ne04J) databases. For achieving this goal,...

This paper lays out a new approach to improve consumer experience using a graph database to extract the consumer eating habits and the pattern change from a large amount of anonymized data. A web system was developed to make recipes recommendations using recommender system techniques, inference, graph database, multimedia visualization and SMS paym...

This paper states the development of a machine learning model capable of classifying whether a person who has cardiac problems is able to escape from a building if it is affected by an earthquake. The data used to train the model was obtained from a simulation which considered some parameters like earthquake magnitude, BMI, cardiovascular disease,...

This paper introduces a conceptual review of Smart Cities to present a novel concept denominated Resilient Smart Cities (RSC). In this work, we provide a brief literature for IoT from the point of view of Smart Cities and its components: network, standards, services and requirements and how this digital ecosystem could be affected by unforeseen eve...

This paper states a brief overview of technologies related to Smart Cities and Big Data ecosystems in order to develop and present an architecture proposal for deploying services using the paradigm of Fast Data. The main goal of this architecture, is to present a set of tools and how it could be integrated for providing fast data services focus on...

This paper describes a system for monitoring roads with sensors network deployed along a path to convey alerts through a web server, in order to inform about routes conditions. The system is composed with wireless cameras, reactive signaling and a website to communicate drivers if routes changes happen, e.g., whether due to an emergency or highway...

This paper states a research on what is the relation established between the Body Mass Index (BMI) and the exit time of people inside of the building when an earthquake takes place. To accomplish this goal in this article is presented a case of study in where is develop a simulation that uses as physical infrastructure a graph representation of a u...

In this paper, we describe the implementation of system capable to provide protection to the borrowed bicycles within an University area, using Geolocation and perimeter security. The system use components as GPS sensor and BEAGLEBONE for gathering and transmitting real time tracking information to a web application, in where is showed the position...

This paper describes the design and implementation of a prototype of a mobile real time heart rate monitoring system in order to get a preventive or detective control of the status of a person who had been diagnosed a heart disease. The system combines a mobile wearable device that senses cardiac rhythm and identify the geographical location of a p...

El proyecto consiste en la implementación en Python de un algoritmo de recomendación sensible al contexto basado en elementos educativos reutilizables, en donde estos recursos serán obtenidos a través del uso de las APIs de Youtube, Flickr y Soundcloud para lograr tener videos, imágenes y músicas respectivamente. En donde los elementos pasarán ante...

This paper explains the generic function of implanted devices in humans to guarantee communication between patients and medical monitoring centers for emergency cases, analyzing transmission parameters, such as transfer rate, bandwidth used, data addressing, and technology comparison. The proposed architecture consists in bidirectional conveying be...

Este documento presenta un proyecto para la capacitación en mantenimiento y reparación de ordenadores para personas con bajos ingresos económicos. El proyecto considera un método que ha sido aplicado para desarrollar un programa de entrenamiento para “Bastión Popular”, una zona urbano-marginal de la ciudad de Guayaquil. El objetivo del proyecto es...

In this paper, a distributed communication model is proposed to be implemented as part of a reactive evacuation management system. This implementation includes elements of wired and wireless network communications, which are used for sending and receiving information about the environment inside of a building. In this type of systems, where the sen...

Sistema de monitoreo para el edificio de rectorado dela Escuela Superior Politécnica del Litoral que permitirá alertar en tiempo real a través de una página web, cambios en valores de temperatura, monóxido de carbono, Dióxido de Carbono y Gas Licuado de Petróleo.

Sistema de monitoreo del ritmo cardíaco de fácil uso para médicos y pacientes, permitirá que cada paciente disponga de un dispositivo portable y ergonómico, que se encarga de realizar la lectura del ritmo cardíaco, mediante un foto sensor, con la ayuda de la telefonía móvil yla tecnología GPRS, permitirá transmitir datos referentes al número de lat...

Se desarrolló una arquitectura IoT utilizando protocolo CoAP y tecnología Ultra Banda-Ancha. El entorno consta de módulos que serán colocados quirúrgicamente en el ser humano, ofreciendo un tratamiento supervisado remotamente por el médico de tal manera en no interferir con las actividades diarias del paciente.

Sistema que permite agilizar el monitoreo de periféricos de los computadores en los laboratorios de la facultad y también censa la temperatura y humedad de la sala de rac generando alertas a los administradores o asistentes encargados.

This project involves the implementation of a context-aware recommender systems based on reusable educational elements , these resources will be obtained through the use of APIs from Youtube, Flickr and Soundcloud to achieve have videos, pictures and music respectively, and to manage from an external source, in our case will be a search interface....

En este trabajo se presenta una breve solución sobre la protección de documentos con formato PDF en el repositorio DSpace actual de la ESPOL, permitiendo de esta manera parar con la copia ilegal parcial o total de sus contenidos y dando consigo una correcta distribución de los documentos científicos del repositorio. Debido a que el servidor se encu...