Mostrando ítems 1-16 de 16

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT

Paz Penagos, Hernán; Moreno, Andres Alejandro; Poveda, José Noe (Latin American and Caribbean Consortium of Engineering Institutions (LACCEI)Jamaica, 2019)

The objective of the article is to present the design of the interface for the acquisition of data from the climatological station located in Guaymaral (latitude: 04º49'20.4""N, Longitude: 74º04'10.2""W; 2585 masl). This ...
Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia

Castellanos, German; Paz Penagos, Hernán; Teuta Gomez, Guillermo ; Joseph, Wout (IEEE Transactions on Signal ProcessingGraz, Austria, 2020)

The 3.5GHz band is an optimal candidate for 5G networks due to its propagation characteristics and massive bandwidth. However, services like the Fixed Satellite Service (FSS) are using this band in several countries. ...
Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica

Paz Penagos, Hernán; Uyuban, Jaime Andrés; Narváez, Alan M.; Ferro Escobar, Roberto (Universidad Militar Nueva GranadaBogotá, Colombia., 2017)

Los métodos sísmicos de prospección constituyen la principal herramienta de exploración y caracterización de reservorios de hidrocarburos, en cualquier cuenca de nuestro planeta. La sísmica de reflexión se puede adquirir ...
Development of an Android mobile application for cycle users of the city of Bogotá D.C.

Paz Penagos, Hernán (LACCEI Latin American and Caribbean Consortium of Engineering InstitutionsBoca Raton Fl, United States., 2017)

This article is about the development of an application for smartphone phones with Android operating system for cycle route who transit in the city of Bogota D.C. The development of the project was achieved with the help ...
Electric power generation from a turnstile

Paz Penagos, Hernán (Universidad Nacional de ColombiaMedellin, Colombia., 2020)

This research aimed to design, simulate in SolidWorks, build, and test two energy conversion mechanisms using mechanical gears and through 0 neodymium magnets. The used source of mechanical energy was the rotational movement ...
Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network

Paz Penagos, Hernán; Guerrero Rodríguez, Néstor (Bogotá, 2020)

Context: This paper presents the design and development of an electronic device that operates as a satellite backup channel for automatic vehicle location (AVL) equipment, whose only communication channel is the cellular ...
First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload

Paz Penagos, Hernán; Campagnoli Martínez, Sandra Ximena; Gómez Rubiano, Juan Camilo; Currea Botero, Juan Sebastián; Martin Alfonso, Juan Felipe (LACCEI Latin American and Caribbean Consortium of Engineering InstitutionsLima, Perú., 2018)

In this article we explain the progress made in the theoretical modeling process of the fiber-based sensor of the detection of vehicular overload. The methodological design covers the first phase of revision of the state ...
Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular

Paz Penagos, Hernán; Campagnoli Martínez, Sandra Ximena; Gómez Rubiano, Juan C.; Currea, Juan S. (Centro de Información Tecnológica (CIT)La Serena, Chile, 2019)

El objetivo de la investigación es la propuesta de un modelo teórico para caracterizar un sensor de fibra óptica. Para lograrlo, se caracterizó el cambio de las propiedades de los rayos de luz que se propagaban por el ...
Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización

Andrade Morales, Juan Manuel (LACCEI, Latin American and Caribbean Consortium of Engineering Institutions.Boca Raton Fl, United States., 2017)

La investigación propone nuevas ecuaciones de inyección de energía de los sistemas de control de variables continuas cuando se usa una interfaz digital PWM de modulación de ancho de pulso agregada a un microprocesador, ...
OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels

Paz Penagos, Hernán (Universidad de la CostaBarranquilla, Colombia., 2018)

Introduction: Recent studies on the FFT processing (Fast Fourier Transform) or DWT (Discrete Wavelet Transform) of the OFDM signal (Orthogonal Frequency Division Multiplexing) have shown pros and cons ...
Parallel Programming to Analyze Crop-Health in Real-Time

Molina Muñoz, Angie Natalia; Brunn, Ansgar; Chaparro, Javier; Pérez, Alexander (zfv – Zeitschrift für Geodäsie, Geoinformation und LandmanagementHerne, Alemania., 2019)

Smart farming takes place by using recent UAV-technology for agricultural profitability. Multiple companies and research centers are working on realizing real scenarious. But there are only restricted experiences about how ...
Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Castellanos, German; Deruyck, Margot; Martens, Luc; Joseph, Wout (MDPI Open Access JournalsBasilea, Suiza., 2019)

Today’s wireless networks provide us reliable connectivity. However, if a disaster occurs, the whole network could be out of service and people cannot communicate. Using a fast deployable temporally network by mounting ...
Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados

Paz Penagos, Hernán; Caycedo Berrio, Joan S.; Patarroyo Godoy, Laura M.; Ramírez Cortés, Laura L. (Centro de Información Tecnológica (CIT)La Serena, Chile., 2019)

El objetivo del artículo es presentar el diseño, simulación y construcción de una antena de dipolos cruzados para recibir imágenes APT procedentes de satélites NOAA15 en un ambiente semiurbano. Para lograr mejor desempeño ...
Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots

Pérez, Alexander; Cadavid, Héctor; Rocha, Camilo (Springer NatureColombia, 2017)

Today’s autonomous robots are being used for complex tasks, including space exploration, military applications, and precision agriculture. As the complexity of control architectures increases, reliability of autonomous ...
System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops

Castellanos, German; Deruyck, Margot; Martens, Luc; Joseph, Wout (IEEEFundación para el futuro de Colombia, Colombia., 2020)

Unmanned Aerial Vehicles (UAV) are part of precision agriculture; also, their impact on fast deployable wireless communication is offering new solutions and systems never envisioned before such as collecting information ...
Use of radio telemetry to determine presence of cattle stress indicators before slaughter

Paz Penagos, Hernán (Universidad Nacional de ColombiaBogotá, Colombia., 2019)

This study was conducted in order to determine the presence of stress in cattle prior to slaughter in situations such as loading, trans-porting, unloading, water and food deprivation during mobilization and waiting in the ...

Envíos recientes

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT
...
Paz Penagos, Hernán | 2019

The objective of the article is to present the design of the interface for the acquisition of data from the climatological station located in Guaymaral (latitude: 04º49'20.4""N, Longitude: 74º04'10.2""W; 2585 masl). This work is part of the research project ""Measurement of local air quality, through an IoT system and advanced data analytics"", funded by the Colombian School of Engineering JULIO GARAVITO (Colombia). The methodology begins with the request of the data of the meteorological variables by the WIFI module and through the UART, to the server of the District Secretary of the Environment of Bogotá (http://201.245.192.252:81/StationInfo.aspx? ST_ID = 8), in Forward SDA. The received HTML file is saved in RESWIFI, and it is processed in order to debug the essential information of the variables. This information is then sent, via serial interface, to the node of the LoRaWAN network. The results of the design of the interface allowed to receive information of the variables particulate material (PM10 and PM2.5), speed and direction of the wind (Vel10M and Dir10M), temperature (T2m, T8m and T20m), relative humidity of the environment (RH), atmospheric barometric pressure (PB), solar radiation (RS), precipitation, ozone (O3), nitrogen monoxide (NO) and nitrogen oxides (NOX), with which the historical behavior of three of them was graphed: PM10, O3 and nitrogen dioxide (NO2), which are air pollutants.

LEER
Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia
...
Castellanos, German | 2020

The 3.5GHz band is an optimal candidate for 5G networks due to its propagation characteristics and massive bandwidth. However, services like the Fixed Satellite Service (FSS) are using this band in several countries. Therefore, this paper presents a coexistence study of the Long Term Evolution - Advanced (LTE-A) and FSS services in the 3500-3700 MHz in Colombia. Simulations were done in realistic scenarios in the city of Bogota, Colombia. Preliminary results show that critical scenarios are the ones from the LTE eNodeB (eNB) and Users Equipment (UE) nodes to the FSS earth stations. The study includes the analysis of Guard Bands (GB) and arrival angles into the Protection Distances (PD). Results show that the PD is highly dependent on the angle of the interfering signal and the GB used. The PD for a cochannel interference in a suburban scenario is higher than 250km, in the worst-case scenario, and could be reduced down to 17.5 km if a 25 MHz GB is included and the angular difference of the interfering LTE-A signal is 42⁰. Moreover, our results show that the PD needed for interference from UE are 100 times less compared to the eNB ones.

LEER
Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica
...
Paz Penagos, Hernán | 2017

Los métodos sísmicos de prospección constituyen la principal herramienta de exploración y caracterización de reservorios de hidrocarburos, en cualquier cuenca de nuestro planeta. La sísmica de reflexión se puede adquirir en tres tipos de ambientes: marino, terrestre y zonas de transición. Dependiendo de la topografía del área de exploración que se desea iluminar, los sistemas de interconexión de líneas para la adquisición sísmica pueden ser alámbrico o inalámbrico. Este artículo presenta los resultados del desarrollo y pruebas de funcionamiento de una red inalámbrica que interconecta la estación central de registro con tres nodos, en una configuración maestro-esclavo y transmisión bidireccional. Entre dichos puntos se propagó una portadora digital que modula señales banda base para detección de la verticalidad del geófono, y referida al registro de los geófonos. Los resultados obtenidos fueron satisfactorios, en cuanto se transmitió información confiable, aprovechando las ventajas de movilidad de terminales e instalación fácil que ofrecen las redes inalámbricas; sin embargo, se presentaron algunos inconvenientes en la baja tasa de transmisión (limita la tasa de muestreo), y pérdida de datos por el esquema utilizado para el control de flujo y acceso al medio. Esta experiencia de investigación permitió proponer una interconexión alternativa frente al método de interconexión por cable convencional utilizado en la prospección sísmica por reflexión en Colombia.

LEER
Development of an Android mobile application for cycle users of the city of Bogotá D.C.
...
Paz Penagos, Hernán | 2017

This article is about the development of an application for smartphone phones with Android operating system for cycle route who transit in the city of Bogota D.C. The development of the project was achieved with the help of a methodological process, which was structured in four phases, these phases are described: the general context of applications developed in Android, needs identification of cyclical, mobile application development, validation and results; The coupling of these stages allowed to analyze the current situation and to design, program and implement an application according to the needs of the study population, in order to encourage the use of the bicycle as a means of transport for sustainable mobility. The application developed includes the following functionalities: georeferenced maps of the network of cycle route and bicycle route of the city of Bogota, by selecting a source point and a destination point a route is generated, which is drawn on a map, which has in The possibility of users having information on the status of the cycle route through the qualification of the state of the road, lighting and signaling, search for parking cycle, creation of public or private points of interest such as bicycle stores, Workshops of repair, hydration points, among others, history of the route made with information of the time spent in making the route and access to the information of events and tips.

LEER
Electric power generation from a turnstile
...
Paz Penagos, Hernán | 2020

This research aimed to design, simulate in SolidWorks, build, and test two energy conversion mechanisms using mechanical gears and through 0 neodymium magnets. The used source of mechanical energy was the rotational movement of the turnstile arm, generated by pedestrians who enter and leave the campus at Escuela Colombiana de Ingeniería Julio Garavito. To achieve it, the following tasks were performed: the literature review, parameterization of pedestrians’ entrance and exit, characterization of the turnstile, simulation, construction, and the assessment of the mechanisms. The obtained energy conversion results varied from 7v to 11v (1W) for the mechanism using neodymium magnets, and from 12v to 17v (12W) for the mechanical gears. The developed system aims to promote environmental commitment and exploit the lost energy resulting from people’s daily activities.

LEER
Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network
...
Paz Penagos, Hernán | 2020

Context: This paper presents the design and development of an electronic device that operates as a satellite backup channel for automatic vehicle location (AVL) equipment, whose only communication channel is the cellular network. Method: The design, manufacture and assembly of the hardware followed 4 phases, and it was aligned with the IPC 2221 standard. This allowed improving the design experience and guaranteed the correct electrical operation in the final product. Results: The information sent by the developed device corresponds to the data generated by the AVL device, which indicates that the information processing was correctly designed. Additionally, it was possible to obtain a functional and versatile device in which the blocks were correctly integrated; its firmware was designed to receive future updates that improved and expanded its capacity and compatibility with other devices. Conclusions: The final product, which works with the Iridium network, seeks to satisfy the technological requirements of the freight transport sector in Colombia with a low-cost, versatile, and easily integrated solution. The implementation of this type of technologies expands the capacity of tracking mobile assets, even in places where there is no cellular network coverage.

LEER
First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload
...
Paz Penagos, Hernán | 2018

In this article we explain the progress made in the theoretical modeling process of the fiber-based sensor of the detection of vehicular overload. The methodological design covers the first phase of revision of the state of art, and the second, of experimentation of laboratory and simulation to obtain a first approach to the model of the sensor. The investigation will be carried out for static loads corresponding to vehicles C2 of maximum vehicular weight of 17 Tons, distributed on the simple directional axis and on a simple non-directional axis. The selection of the type of signal and its most suitable parameters are presented as partial results; so, like the behavior of the fiber optic against efforts.

LEER
Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular
...
Paz Penagos, Hernán | 2019

El objetivo de la investigación es la propuesta de un modelo teórico para caracterizar un sensor de fibra óptica. Para lograrlo, se caracterizó el cambio de las propiedades de los rayos de luz que se propagaban por el núcleo de la fibra, cuando el medio sufría un doblez proporcional a la deformación de un conjunto de cuatro muelles que soportaban el peso de un vehículo del tipo C2 (dos ejes). La deformación alteró el ángulo del doblez de la fibra de vidrio, que a su vez afectó la propagación de la luz debido a la presencia de ondas reflejadas y refractadas; este evento modificó la magnitud del coeficiente de transmisión (T) que se evaluó en el receptor. Este artículo presenta el estudio experimental -bajo condiciones controladas-, el registro, análisis de datos y regresión para modelar el sensor mediante una ecuación algebraica.

LEER
Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización
...
Andrade Morales, Juan Manuel | 2017

La investigación propone nuevas ecuaciones de inyección de energía de los sistemas de control de variables continuas cuando se usa una interfaz digital PWM de modulación de ancho de pulso agregada a un microprocesador, para facilitar las tareas de automatización. Estas nuevas ecuaciones deben ser conocidas por estudiantes e ingenieros debido a que existe una gran posibilidad de hacer aplicaciones de control automático rápidas, baratas y eficientes que deben estar al alcance de todos. Los libros actuales de control automático son un compendio de modelamiento matemático, ninguno muestra una integración entre modelamiento matemático, análisis físico, electrónica digital, electrónica análoga, electrónica de potencia y diseño de algoritmos en lenguaje de máquina. Esta investigación hace un esfuerzo por integrar los anteriores conocimientos y aporta la deducción de nuevas ecuaciones para poder hacer realidad las estrategias de control proporcional integral (PI) y proporcional integral derivativo (PID) en un microprocesador que posee una interfaz digital PWM.

LEER
OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels
...
Paz Penagos, Hernán | 2018

Introduction: Recent studies on the FFT processing (Fast Fourier Transform) or DWT (Discrete Wavelet Transform) of the OFDM signal (Orthogonal Frequency Division Multiplexing) have shown pros and cons for DVB-T2 (Digital Video Broadcasting-Second Generation Terrestrial) radio communications; however, the benefits of both types of processing have yet to be compared for the same scenario. Objective− The objective of this research is to compare the response of the wireless channel with AWGN noise (Additive White Gaussian Noise Channel) and Rayleigh and Rician fading in the UHF (Ultra High Frequency) band. Methodology: The transmission of DVB-T2 information with OFDM modulation and FFT and DWT processing was simulated in Matlab®, specifically in Simulink. Results: The results of the study proved to be more ef-ficient for DWT system than FFT system, due to the low rate of erroneous bits, spectral efficiency and reduction of the Peak-to-Average Power Ratio (PAPR), for Eb / No relations greater than 10dB. Conclusions: In this article, we present the designs of both systems and the results of the research experience; likewise, the practical applicability of these systems is discussed, and improvements are suggested for future work

LEER
Parallel Programming to Analyze Crop-Health in Real-Time
...
Molina Muñoz, Angie Natalia | 2019

Smart farming takes place by using recent UAV-technology for agricultural profitability. Multiple companies and research centers are working on realizing real scenarious. But there are only restricted experiences about how to process the data faster and better in real-time. Autonomous systems that can decide instanteously after receiving sensor information could increase the farming efficiency. The agroindustry research group from the Escuela Colombiana de Ingeniería and Universidad de Ciencias Aplicadas y Ambientales en Bogota-Colombia in alliance with the University of Applied Sciences Wuerzburg-Schweinfurt are committed to that idea. This project uses an NVIDIA Jetson embedded board to process agricultural information in order to find abnormalities. In this article we prove that this board is able to make the calculations for a vegetation index in real-time from multi-spectral images.

LEER
Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks
...
Castellanos, German | 2019

Today’s wireless networks provide us reliable connectivity. However, if a disaster occurs, the whole network could be out of service and people cannot communicate. Using a fast deployable temporally network by mounting small cell base stations on unmanned aerial vehicles (UAVs) could solve the problem. Yet, this raises several challenges. We propose a capacity-deployment tool to design the backhaul network for UAV-aided networks and to evaluate the performance of the backhaul network in a realistic scenario in the city center of Ghent, Belgium. This tool assigns simultaneously resources to the ground users—access network—and to the backhaul network, taking into consideration backhaul capacity and power restrictions. We compare three types of backhaul scenarios using a 3.5 GHz link, 3.5 GHz with carrier aggregation (CA) and the 60 GHz band, considering three different types of drones. The results showed that an optimal UAV flight height (80 m) could satisfy both access and backhaul networks; however, full coverage was difficult to achieve. Finally, we discuss the influence of the flight height and the number of requesting users concerning the network performance and propose an optimal configuration and new mechanisms to improve the network capacity, based on realistic restrictions.

LEER
Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados
...
Paz Penagos, Hernán | 2019

El objetivo del artículo es presentar el diseño, simulación y construcción de una antena de dipolos cruzados para recibir imágenes APT procedentes de satélites NOAA15 en un ambiente semiurbano. Para lograr mejor desempeño de la antena se manejó la altura sobre el plano de tierra, la longitud y diámetro de los elementos, el ángulo de inclinación de estos respecto del eje de coordenadas de la antena y el acople con un puerto de conexión tipo SMA de 50Ω. La antena construida permitió recibir imágenes APT en tiempo real, con una resolución máxima de 120dpi, ganancia de 4.8dBi y desviación de frecuencia de ±17KHz. La portadora modulada arribó a una frecuencia de 137MHz y fue procesada mediante dispositivos y herramientas: RTL-SDR, SDR Sharp, audio piping y el software WXtoimg para la decodificación de imágenes. Se concluye que en entornos semiurbanos la antena de dipolos cruzados recibe bien imágenes APT. Sin embargo, es susceptible al efecto doppler y al ruido por la presencia de nulos de bajo orden.

LEER
Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots
...
Pérez, Alexander | 2017

Today’s autonomous robots are being used for complex tasks, including space exploration, military applications, and precision agriculture. As the complexity of control architectures increases, reliability of autonomous robots becomes more challenging to guarantee. This paper presents a hybrid control architecture, based on the Plan Execution Interchange Language ( PLEXIL ), for autonomy of wheeled robots running the Robot Operating System ( ROS ). PLEXIL is a synchronous reactive language developed by NASA for mission critical robotic systems, while ROS is one of the most popular frameworks for robotic middle-ware development. Given the safety-critical nature of spacecraft operations, PLEXIL operational semantics has been mathematically defined, and formal techniques and tools have been developed to automatically analyze plans written in this language. The hybrid control architecture proposed in this paper is showcased in a path tracking scenario using the Husky robot platform via a Gazebo simulation. Thanks to the architecture presented in this paper, all formal analysis techniques and tools currently available to PLEXIL are now available to build reliable plans for ROS -enabled wheeled robots.

LEER
System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops
...
Castellanos, German | 2020

Unmanned Aerial Vehicles (UAV) are part of precision agriculture; also, their impact on fast deployable wireless communication is offering new solutions and systems never envisioned before such as collecting information from underground sensors by using low power Internet of Things (IoT) technologies. In this paper, we propose a (Narrow Band IoT) NB-IoT system for collecting underground soil parameters in potato crops using a UAV-aided network. To this end, a simulation tool implementing a gateway mounted on a UAV using NB-IoT based access network and LTE based backhaul network is developed. This tool evaluates the performance of a realistic scenario in a potato field near Bogota, Colombia, accounting for real size packets in a complete IoT application. While computing the wireless link quality, it allocates access and backhaul resources simultaneously based on the technologies used. We compare the performance of wireless underground sensors buried in dry and wet soils at four different depths. Results show that a single drone with 50 seconds of flight time could satisfy more than 2000 sensors deployed in a 20 hectares field, depending on the buried depth and soil characteristics. We found that an optimal flight altitude is located between 60 m and 80 m for buried sensors. Moreover, we establish that the water content reduces the maximum reachable buried depth from 70 cm in dry soils, down to 30 cm in wet ones. Besides, we found that in the proposed scenario, sensors' battery life could last up to 82 months for above ground sensors and 77 months for the deepest buried ones. Finally, we discuss the influence of the sensor's density and buried depth, the flight service time and altitude in power-constrained conditions and we propose optimal configuration to improve system performance.

LEER
Use of radio telemetry to determine presence of cattle stress indicators before slaughter
...
Paz Penagos, Hernán | 2019

This study was conducted in order to determine the presence of stress in cattle prior to slaughter in situations such as loading, trans-porting, unloading, water and food deprivation during mobilization and waiting in the corral in overcrowded and inclement condi-tions. Samples were five bovines with ages of 40 months on average, castrated males, from the San Martinero criolla breed, whichwere transported along 144 Km, by land, from the farm located in Acacias, department of Meta, to the ICTA slaughter plant in Bo-gotá. The stress indicators were identified by differences in body temperature, heart rate and respiration frequency (hereinafter-physiological constants), which were monitored for 20 minutes at the time: prior to loading the animals on the farm, and uponarri-val at the slaughterhouse (just after being transported). The bovine cardiac signal was captured and processed through a girth, and was transmitted via a radio telemetry system that was designed and built in the project. The results show data capture at a sample rate of four million samples per second and wireless communication in real time, which meant that no information was lost on thevariations of the bovine heart signal and reception of information from any point of the slaughter plant.

LEER

‹›

Repositorio Digital

Listar AB - Ecitrónica por autor "Ecitrónica"

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT

Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia

Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica

Development of an Android mobile application for cycle users of the city of Bogotá D.C.

Electric power generation from a turnstile

Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network

First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload

Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular

Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización

OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels

Parallel Programming to Analyze Crop-Health in Real-Time

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados

Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots

System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops

Use of radio telemetry to determine presence of cattle stress indicators before slaughter

Envíos recientes

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT

Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia

Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica

Development of an Android mobile application for cycle users of the city of Bogotá D.C.

Electric power generation from a turnstile

Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network

First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload

Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular

Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización

OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels

Parallel Programming to Analyze Crop-Health in Real-Time

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados

Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots

System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops

Use of radio telemetry to determine presence of cattle stress indicators before slaughter

Listar AB - Ecitrónica por autor "Ecitrónica"

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT ﻿

Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia ﻿

Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica ﻿

Development of an Android mobile application for cycle users of the city of Bogotá D.C. ﻿

Electric power generation from a turnstile ﻿

Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network ﻿

First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload ﻿

Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular ﻿

Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización ﻿

OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels ﻿

Parallel Programming to Analyze Crop-Health in Real-Time ﻿

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks ﻿

Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados ﻿

Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots ﻿

System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops ﻿

Use of radio telemetry to determine presence of cattle stress indicators before slaughter ﻿

Envíos recientes

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT

Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia

Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica

Development of an Android mobile application for cycle users of the city of Bogotá D.C.

Electric power generation from a turnstile

Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network

First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload

Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular

Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización

OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels

Parallel Programming to Analyze Crop-Health in Real-Time

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados

Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots

System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops

Use of radio telemetry to determine presence of cattle stress indicators before slaughter

Adquisición de datos para un sistema de medición de la calidad del aire basado en IoT

Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia

Desarrollo y prueba de un sistema de radio telemetría para adquisición sísmica

Development of an Android mobile application for cycle users of the city of Bogotá D.C.

Electric power generation from a turnstile

Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network

First approach to the modeling process of the sensor base on fiber optic for the detection of vehicular overload

Modelo Teórico de Sensor basado en el Principio de la Reflectometría de Luz sobre Fibra Óptica para Detección de Sobrecarga Vehicular

Nuevas Ecuaciones de Inyección de Energía para Facilitar las Tareas de Automatización

OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels

Parallel Programming to Analyze Crop-Health in Real-Time

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Recepción de Imágenes Meteorológicas de Colombia con una Antena de Dipolos Cruzados

Reliable Control Architecture with PLEXIL and ROS for Autonomous Wheeled Robots

System Assessment of WUSN Using NB-IoT UAV-Aided Networks in Potato Crops

Use of radio telemetry to determine presence of cattle stress indicators before slaughter