Examinando por Autor "Perdomo Charry, Cesar Andrey"

Mostrando 1 - 14 de 14

Algoritmo para la detección de posiciones corporales durante el sueño a partir de imágenes térmicas en niños menores a un año
Quiñones Cortés, María Mercedes; Perdomo Charry, Cesar Andrey; Rodríguez Cediel, Ana Carolina
Sudden infant death syndrome (SIDS) is one of the leading causes of death for children under one year of age around the world. Although its causes are unknown, it has been determined that one of the factors that can lead to the occurrence of the syndrome is that the infant sleeps in a prone or side position. In this work, an algorithm is proposed that allows determine from the processing of thermal images and without the constant need by human supervision, if the child has acquired a risky position for their health during sleep. This algorithm has been developed using basic image processing tools such as morphology, thresholding and histogram equalization, together with a clustering algorithm. The algorithm was implemented in the Python programming language and this document shows the results and the evaluation of its performance.
Análisis para el mejoramiento algorítmico para el sistema de reconocimiento de vibraciones para los moto compresores Worthington.
Porras Niño, Carlos Andrés; Perdomo Charry, Cesar Andrey
Recognition of vibration patterns by means of neural networks MLP for the identification of the different symptomatologies for the predictive maintenance of the Worthington compressor.
Desarrollo de un prototipo de habitación inteligente para pacientes discapacitados a través de señales EEG
Rodríguez Daza, Nicolás; Sánchez Bolaños, Cristian David; Perdomo Charry, Cesar Andrey
This work is intended for create a system that integrates people with motor disabilities to an intelligent room prototype. This allows them to perform different applications inside a room through a Brain Computer Interface (BCI) based on biological signals. Electroencephalographic (EEG) signals are used as control signals. The applications in the room are: light control,bed inclination and requesting assistance with a buzzer. These signals are captured using the Ultracortex Mark IV acquisition system of the company OpenBCI connected to self-developed software. The gestures defined to perform the analysis are: left eye blink, right eye blink, eyebrow raise and no action. The data is filtered in the alpha band (8-13)Hz and is used to train an artificial intelligence model based on one-dimensional convolutional neural networks. For each gesture a control signal is generated and sent via Bluetooth Low Energy (BLE) to an embedded system in charge of the room prototype functions. At the first phase, the volunteers did not have any motor disabilities. The average accuracy value for eye blinking was 80\% and for eyebrow raising 85\% in the training model. Real-time classification showed an accuracy of 78.75\% using five-second length windows.
Detección y tratamiento de las señales EEG que permitan definir tareas de un drone.
Villegas Isasa, Ivan Daniel; Perdomo Charry, Cesar Andrey
This document shows the process to control a drone with EEG signals, using an array of dry electrodes around the motor cortex and in the forehead area, following the 10/20 distribution and filtering the signals in the alpha rhythm. A database is set up with 15 people, of different genders and ages, to train three different computational intelligence paradigms (k-nearest neighbors, random forests, and convolutional neural networks) with the inputs passed through different preprocessing after filtering (without preprocessing, normalization, standardization, scaling between fixed values) with the help of python "scikit" learn. A GUI is made to help control the drone using "pyParrot" in python.It is obtained that the best classification is with the convolutional neural network with the inputs are preprocessing with which you can give orders to the drone in real time.
Diseño de una estación meteorológica modular que permite conexión remota y gestión de datos vía internet
Cruz Bernal, Andrés Felipe; Perdomo Charry, Cesar Andrey
In this work, the design and implementation of a prototype of a low-cost modular meteorological station was carried out, which allows the measurement of meteorological variables using suitable sensors according to the specifications found in the research. The station has a solar charging system that gives it autonomy to not depend on an electrical outlet. The measured data are presented through a web application hosted on a server of the Francisco José de Caldas District University. The web application is adaptable to any mobile device or computer and with public access. An analysis of the obtained data was included comparing them against the data obtained by the use of a commercial meteorological station. At the end, the conclusions and possible proposals for improvements or future complements of the obtained design were made.
Diseño e implementación de un sistema de ayuda para terapias de rehabilitación muscular
Perilla Hernández, Carlos Andrés; Lancheros Ramírez, Melissa; Orduz Cárdenas, Manuel Sebastián; Perdomo Charry, Cesar Andrey
The purpose of this document is to present all the stages of the development of a prototype to attend a therapy of muscular rehabilitation, starting from the investigation of the various actors involved in the rehabilitation process until delivery of the final device. When analyzing the routines performed by a patient, two of these actors, electromyography (EMG) and mechanomiography (MMG) are identified and chosen and from these the process of designing the biometric acquisition cards is started. Once captured, digital signal processing starts and with the result of this, the ranges in which the different exercises performed during the therapy session are selected. With these defined ranges, each movement performed during a session is easily identified and transmitted wirelessly to the receiver. The receiving device captures and interprets the information sent and the delivery to two different destinations, the first of them is the user interface, a basic exploration video game that softens the time it takes the patient to complete the sequence of movements delivered by the physiotherapist and the second is a database that stores the information of the exercises performed by the patient, the time it takes to complete the routine and the date on which it is performed; this database can be accessed at any time through the browser of a device that is connected in the same network.
Diseño e implementación de un sistema de identificación que suministre datos a un sistema de información para el monitoreo de cada una de las plantas en cultivos de palma africana
Cruzado Jiménez, José Carlos; Perdomo Charry, Cesar Andrey
Due to the need within African palm oil crops, the identification of the characteristics and parameters that constantly affect it. An integrated prototype system for a database, an identification system using NFC technology and a web platform, is designed and implemented, which seeks to identify the relevant characteristics of an oil palm crop, implementing a smartphone with storage routines and easy operation for the user. This system not only allows the characterization of palm crops but also the control of the work of the employees, thus achieving an administration, recognition and management in the crop.
Extracción de contexto geográfico a partir de NLP para información de tránsito en redes sociales
Robles Mondragón, Duvan Alexander; Perdomo Charry, Cesar Andrey
Little has been said about the retrieval of spatial information from text, particularly because the term "spatial information" is associated with geometries in the form of vectors or raster-type information that express different variables or phenomena accompanied by coordinates, despite this, the extraction of information in text is presented as one of the most promising advances thanks to natural language processing (NLP) and in this case it is outlined as a new field of action complementary to spatial analysis, trying to extract a specific event that happens in space and embodied in a text. The main source of text, for this research, are those shared in a collaboration network such as twitter. The extracted events are those that are found or refer to the road network and that arise in a recurring or random way, the latter, Chance, the most difficult to manage in any city that must monitor the traffic of road actors under a network of sensors that try to see the congestion of the roads and road incidents. Now, these texts were stored under a database scheme classified as road incidence that are passed over a writing pattern recognizer that extracts the location and subsequently feeds a georeferencer that returns a pair of coordinates (lat, lon), the The idea with these coordinates is to convert them into compiled data that, within a spatial analysis, show a grouping phenomenon under geostatistical techniques such as spatial autocorrelation, finding hot spots or cold spots of incident existence. The defined similar geographic results are compared with data from recent years collected by official transit entities and that are published for free access, the comparison of patterns between a previous year and those extracted with artificial intelligence show spatial behaviors and spatial self-connection preserves certain similarity revealing the usefulness of the geographical focus extraction that is proposed and possible to complement a data source for the management of road congestion and traffic incidents.
Generación automática de sistemas lógicos difusos (SLD) tipo Mamdani sobre microcontrolador de 8 bits
(Universidad Distrital Francisco José de Caldas. Colombia) Puente Reyes, Sebastián Fernando; Perdomo Charry, Cesar Andrey; Gaona García, Elvis Eduardo
Prestación de servicios como auxiliar de investigación para CENNIGA
Tachack Suárez, Juan Felipe; Perdomo Charry, Cesar Andrey
This document details the methodology and results obtained as research assistant in the design and development of databases, debugging of anomalous data, correction of data according to the criteria for storage and organization of hydrometeorological information established by the IDEAM, the establishment of methodologies for quality assessment, data homogeneity, design methodologies for the estimation of missing data, design and construction of a web platform for data management and consultation.
Sintetización de una red neuronal convolucional en microcontrolador para la identificación de gestos mediante el procesamiento de señales electroencefalográficas
Portugal Forero, Brayan; Guerrero Martinez, Gabriel Steven; Perdomo Charry, Cesar Andrey
The ability to interpret electroencephalographic (EEG) signals for gesture identification represents a significant advance in brain-computer interface and biometric control applications. This degree project entitled "Synthesizing a Convolutional Neural Network on Microcontroller for Gesture Identification by Processing Electroencephalographic Signals". It explores the feasibility of miniaturizing and optimizing a convolutional neural network (CNN) for execution on a low-power microcontroller, the Arduino Nano 33 BLE, an emerging device in the field of embedded computing and IoT.
Sistema de medición y monitoreo para el estudio del efecto de la radiación Par en las plantas
Forero Pinzón, Jeisson Eduardo; Perdomo Charry, Cesar Andrey
LED technology thanks to its monochromatic, power saving and radiation characteristics in a specific spectrum range is widely used as home lighting and for many industrial applications, nowadays in some industrialized countries around the world, have been well received The developments based on LED technology of high power, applied in crops of plants, especially ornamental, horticultoras, flowers and even some aromatic and medicinal species. This research proposes the development of a mechanism of observation of the physiological response of plants present in the regional horticultural industry, in space photosynthesis, from the design of a lighting system, based on LED technology, Light from 400nm to 700nm, for photosynthesis, known as PAR radiation (photo-synthetically active radiation), the stimulus is generated by the controlled reproduction of the visible spectrum, whose data are measured by a sensor previously calibrated.
Sistema de monitoreo y control para las luces de pista de los Aeropuertos La Mina y Puerto Bolivar
Rivera Castañeda, Diego Alejandro; Perdomo Charry, Cesar Andrey
Bearing in mind that according to the RAC (Aeronautical Regulations of Colombia) the entities that provide the infrastructure service must keep in mind; that the illumination of the runway must be adequate for the minimum conditions of visibility and ambient light at the moment in which it is used. That in the aerodromes that have runway lighting systems, there must be a control and monitoring system for the illuminated visual aids, in said airfield, for the proper functioning of the same. And finally that they are responsible for the damages that are caused by the operation of the aerodromes and the provision of the aforementioned services. Taking into account that a monitoring and control system can provide an airport with an improvement in the efficiency of the air traffic controller by providing adjustments in each lighting system, in a faster and more precise way. In addition to improving the security for the different aircraft since any change in these systems is of vital importance for the recognition of the runway and a correct descent to it, since this system allows the air traffic controller and the pilot to make relevant decisions for each of the required operations and / or conditions that may arise. In this way, the ENTELCOM company, requires a monitoring and control system for the runway lights of the La Mina and Puerto Bolívar airports, the main objective of this degree project is to carry out said system in such a way that it meets the different needs present at airports. For this, a characterization of each system was made, a selection of the different components necessary for the creation of said system, the configuration of each one, and a simulation of the whole system, so that the correct functioning can be verified with respect to as stipulated in the Aeronautical regulations of Colombia.
SPEED CONTROL OF INDUCTION MOTOR USING DTC AND FUZZY-P CONTROLLER
(Universidad Distrital Francisco José de Caldas) Barriga Turriago, Camilo; Perdomo Charry, Cesar Andrey

Repositorio Institucional

Examinando por Autor "Perdomo Charry, Cesar Andrey"

Universidad Distrital Francisco José de Caldas - Biblioteca UDFJC