27 research outputs found
Horticultura protegida en tres zonas agroecol贸gicas de Costa Rica
Proyecto de Investigaci贸n.
Instituto Tecnol贸gico de Costa Rica. Vicerrector铆a de Investigaci贸n y Extensi贸n (VIE). Escuela de Ingenier铆a en Agronom铆a, Escuela de Ingenier铆a Electr贸nica, Escuela de Administraci贸n de Empresas, 2012Durante los a帽os 2007 al 2009 se desarroll贸 un proyecto de investigaci贸n y extensi贸n a cargo de la Escuela de Agronom铆a del ITCR, que consisti贸 en la implementaci贸n del sistema de cultivo protegido de hortalizas en tres diferentes zonas agroecol贸gicas: Huetar Norte, Pac铆fico Norte y Valle Central Occidental. Se construyeron invernaderos, se involucraron como beneficiarios a tres asociaciones de productores y a un productor independiente, a los cuales se les capacit贸 a trav茅s de charlas magistrales y talleres pr谩cticos en t贸picos relacionados con horticultura protegida y registro de la informaci贸n del cultivo y sus labores. Participaron como contraparte el Instituto mixto de ayuda social (IMAS) y el Instituto Costarricense de Electricidad (ICE), ambos financiaron la construcci贸n de dos invernaderos. El ICE particip贸 con apoyo log铆stico y en la compra de materiales y equipo necesario para la implementaci贸n del sistema. Se desarroll贸 investigaci贸n para determinar la interacci贸n genotipo-ambiente en el cultivo de tomate y en el uso de sustratos para hidropon铆a, se construy贸 un sensor de variables clim谩ticas por parte de la Escuela de Ingenier铆a Electr贸nica del ITCR para uso dentro de los invernaderos. Se logr贸 obtener asociaciones capacitadas en el cultivo protegido de chile dulce y tomate, registro de informaci贸n del desarrollo de la actividad, interpretaci贸n y utilizaci贸n para la toma de decisiones, as铆 como conocimiento acerca del comportamiento de las especies de cultivo dentro de sistemas protegido de cultivo en tres diferentes zonas agroecol贸gicas
Modelo integrado para la toma de decisiones en procesos naturales por medio de internet de las cosas
Tesis de Graduaci贸n (Doctorado Acad茅mico en Ingenier铆a) Instituto Tecnol贸gico de Costa Rica, 脕rea acad茅mica de Doctorado en Ingenier铆a, 2019Climate change has already shown its negative impact on agriculture and food production,
particularly because of rainfall de cit or excess, temperature changes and other associated
environmental variations. These events constitute a threat to food security in low and
middle income economies, especially for those in the tropics. This document presents
the major contributions obtained during the dissertation process in order to ful ll the
last requirement of the Doctoral Program in Engineering, namely, the design of an estimation
and decision-making model in natural processes through the measurement and
multiprocessing of environmental variables by means of Internet of Things (IoT).
Considering this objective, and taking into account that farmers traditionally only know
and practice open-air horticulture, the incorporation of cultivation methods in protected
environments, better known as greenhouses, is presented as a challenge, in such a way
that both farmers as researchers can access technological tools of easy use and low cost
for an appropriate decision-making with the aim to improve horticultural production.
Given the above, a methodological procedure is established by means of a fuzzy logic
controller that takes linguistic terms of daily use about the availability of water in the
crops, electrical conductivity and pH of the drainage (collected and measured automatically).
With this in mind, IoT is incorporated into scienti c research on vegetable crops
in greenhouses with coconut ber substrate and this provides an autonomous decisionmaking
system related to fertigation (fertilizers + water) that provides timely support to
farmers and researchers.
The designed system consists of electronic circuitry, sensors, mobile communication, actuators
and a standalone fuzzy logic controller connected to an IoT platform. The functionality
of the system was tested in a greenhouse, where the acquired data of drainage
quantity, electrical conductivity and pH, are processed by the fuzzy logic controller taking
into consideration criteria based on expert systems.Se ha demostrado ya el efecto negativo que el cambio clim麓atico ejerce sobre la agricultura
y la producci麓on alimentaria, en particular por el exceso o d麓eficit de precipitaciones, los
cambios de temperatura y otras variaciones ambientales asociadas. Estos eventos constituyen una amenaza para la seguridad alimentaria en las econom麓谋as de ingresos bajos
y medios, especialmente para aquellas en el tr麓opico. En este documento se detallan los
aportes en el marco de la tesis del programa de Doctorado Acad麓emico en Ingenier麓谋a para
el cumplimiento del objetivo de dise藴nar un modelo de estimaci麓on y toma de decisiones en
procesos naturales mediante la medici麓on y multiprocesamiento de variables ambientales
por medio de Internet de las Cosas (IdC).
Ante este objetivo, y tomando en consideraci麓on que tradicionalmente los agricultores
solo conocen y ponen en pr麓actica la horticultura a campo abierto, se presenta como un
reto la incorporaci麓on de m麓etodos de cultivo en ambientes protegidos, mejor conocidos
como invernaderos, de manera tal que tanto agricultores como investigadores puedan
utilizar herramientas tecnol麓ogicas de f麓acil uso y bajo costo para la toma de decisiones que
favorezcan la producci麓on hort麓谋cola.
Dado lo anterior, se procede a establecer un procedimiento metodol麓ogico por medio de
un controlador de l麓ogica difusa que toma en consideraci麓on t麓erminos ling篓u麓谋sticos de uso
cotidiano sobre la disponibilidad del agua en los cultivos, conductividad el麓ectrica y pH del
drenaje (recolectado y medido autom麓aticamente). Con esto en mente, se incorpora IdC
en la investigaci麓on cient麓谋fica sobre cultivos de hortalizas en invernaderos con sustrato de
fibra de coco y se provee de un sistema aut麓onomo de toma de decisiones relacionadas con
fertirriego (fertilizantes + agua) que brinda apoyo oportuno a agricultores e investigadores.
El sistema dise藴nado se compone de circuiter麓谋a electr麓onica, sensores, comunicaci麓on a trav麓es
de telefon麓谋a celular, actuadores y un controlador aut麓onomo de l麓ogica difusa con conexi麓on a
una plataforma de IdC en la nube. La funcionalidad del sistema fue probada en un invernadero, donde los datos adquiridos de cantidad de drenaje, conductividad el麓ectrica y pH
de 麓estos, son procesados por el controlador de l麓ogica de difusa tomando en consideraci麓on
criterios basados en sistemas expertos
Iraz煤: cubesat mission architecture and development
Art铆culoThe Central American Association of Aeronautics and Space (ACAE) and the Costa Rican Institute of Technology (TEC), in partnership with industry and government, have identified the promotion of aerospace as a very promising strategy for economic, scientific, and technological development in Costa Rica. Several studies, including a state-of-the-art mapping of aerospace industry made by ACAE, the Central American Institute of Business Administration (INCAE) and the Costa Rican Foreign Trade Agency (PROCOMER) [1], have identified actions to enable the development of the aerospace sector in the country. Among them, a significant catalyst would be a practical demonstration of the technical capabilities to develop a space engineering project. The Iraz煤 project is an innovative mission taking place in Costa Rica, which aims to launch the first Central American satellite in orbit by 2018. The project, led by ACAE and TEC, has two main objectives: a) to complete a space project life-cycle, and b) to develop a platform to monitor the growth in biomass of planted trees to offset carbon emissions and to help reduce Global Warming. This project supports the efforts of Costa Rica to become the first carbon neutral country in the world. The mission is divided into three segments: the remote station, the space segment, and the ground segment. The remote station is located at the northern region of the country. Sensors will be placed there to measure tree growth, soil humidity, and other weather variables. Collected data in the remote station will be transmitted to the space segment, a 1 unit (1U) CubeSat in Lower Earth Orbit (LEO), that in turn will transmit the data to the ground segment. The latter includes the ground station, mission control, and a data visualization center, which will process the scientific data to make it available to the public. To validate the execution of the project and to strengthen international cooperation, international partners from Japan, the Netherlands and the United Kingdom have been enlisted to train Costa Rican engineers, evaluate the work planning process, provide testing facilities, and provide launching services. The Iraz煤 mission follows the NASA project life-cycle as a reference, and it is divided into seven phases. This paper focuses on the results of Phase C, which consists of the definition of the critical design of the mission. Moreover, the lessons learned will be described, focusing on the issues relevant to developing countries that aim to develop similar projects
Industrial, Collaborative and Mobile Robotics in Latin America: Review of Mechatronic Technologies for Advanced Automation
Mechatronics and Robotics (MaR) have recently gained importance in product development and manufacturing settings and applications. Therefore, the Center for Space Emerging Technologies (C-SET) has managed an international multi-disciplinary study to present, historically, the first Latin American general review of industrial, collaborative, and mobile robotics, with the support of North American and European researchers and institutions. The methodology is developed by considering literature extracted from Scopus, Web of Science, and Aerospace Research Central and adding reports written by companies and government organizations. This describes the state-of-the-art of MaR until the year 2023 in the 3 Sub-Regions: North America, Central America, and South America, having achieved important results related to the academy, industry, government, and entrepreneurship; thus, the statistics shown in this manuscript are unique. Also, this article explores the potential for further work and advantages described by robotic companies such as ABB, KUKA, and Mecademic and the use of the Robot Operating System (ROS) in order to promote research, development, and innovation. In addition, the integration with industry 4.0 and digital manufacturing, architecture and construction, aerospace, smart agriculture, artificial intelligence, and computational social science (human-robot interaction) is analyzed to show the promising features of these growing tech areas, considering the improvements to increase production, manufacturing, and education in the Region. Finally, regarding the information presented, Latin America is considered an important location for investments to increase production and product development, taking into account the further proposal for the creation of the LATAM Consortium for Advanced Robotics and Mechatronics, which could support and work on roboethics and education/R+D+I law and regulations in the Region.聽Doi: 10.28991/ESJ-2023-07-04-025 Full Text: PD
Remote vehicle teleoperation through a haptic interface
La teleoperaci贸n permite que el ser humano pueda llevar a cabo ciertas tareas en lugares muy lejanos, de dif铆cil acceso o de condiciones hostiles para la presencia de un operador. Con este proyecto se logr贸 teleoperar un veh铆culo remoto por medio del protocolo de comunicaci贸n Bluetooth, para lo cual se adapt贸 una interfaz h谩ptica (Novint Falcon). Desde la interfaz, el operador puede enviar la consigna de movimiento y, adem谩s, obtener sensaciones conforme a la informaci贸n de los sensores incluidos al sistema. Como veh铆culo remoto se utiliz贸 un Lego Mindstorms con capacidad de comunicaci贸n Bluetooth, al cual se incorpor贸 un sensor de contacto y otro de ultrasonido con el fin de percibir en la interfaz h谩ptica la retroalimentaci贸n de fuerzas. A una computadora est谩ndar se le dio capacidad de comunicaci贸n Bluetooth por medio de un adaptador USB, desde la cual se ejecuta un programa creado en C++ para controlar las acciones de la interfaz h谩ptica, enviar los comandos de movimiento al veh铆culo y recibir la informaci贸n de los sensores, la cual reproduce sensaciones al operador.Teleoperation allows human beings to carry out certain tasks in places far away, inaccessible or with hostile conditions for the presence of an operator. In this project a remote vehicle is teleoperated using a bluetooth wireless connection, to accomplish this an haptic interface (Novint Falcon) was used. The operator can give movement instructions to the vehicle and obtain sensations, according to the information received from the sensors connected to the system. The remote vehicle was a Lego Mindstorms with bluetooth communication capabilities, a touch sensor and ultrasonic sensor were included in order to perceive reflection of forces through the haptic interface. A USB adapter for bluetooth communication was added to a standard computer; a program in C++ is executed over this computer to control the haptic interface, send movement commands to the vehicle and receive sensor information to reproduce sensations to the operator
Teleoperaci贸n de un veh铆culo remoto en un medio de acceso inal谩mbrico mediante el uso de una interfaz h谩ptica
Teleoperation allows human beings to carry out certain tasks in places far away, inaccessible or with hostile conditions for the presence of an operator. In this project a remote vehicle is teleoperated using a bluetooth wireless connection, to accomplish this an haptic interface (Novint Falcon) was used. The operator can give movement instructions to the vehicle and obtain sensations, according to the information received from the sensors connected to the system. The remote vehicle was a Lego Mindstorms with bluetooth communication capabilities, a touch sensor and ultrasonic sensor were included in order to perceive reflection of forces through the haptic interface. A USB adapter for bluetooth communication was added to a standard computer; a program in C++ is executed over this computer to control the haptic interface, send movement commands to the vehicle and receive sensor information to reproduce sensations to the operator.La teleoperaci贸n permite que el ser humano pueda llevar a cabo ciertas tareas en lugares muy lejanos, de dif铆cil acceso o de condiciones hostiles para la presencia de un operador. Con este proyecto se logr贸 teleoperar un veh铆culo remoto por medio del protocolo de comunicaci贸n Bluetooth, para lo cual se adapt贸 una interfaz h谩ptica (Novint Falcon). Desde la interfaz, el operador puede enviar la consigna de movimiento y, adem谩s, obtener sensaciones conforme a la informaci贸n de los sensores incluidos al sistema. Como veh铆culo remoto se utiliz贸 un Lego Mindstorms con capacidad de comunicaci贸n Bluetooth, al cual se incorpor贸 un sensor de contacto y otro de ultrasonido con el fin de percibir en la interfaz h谩ptica la retroalimentaci贸n de fuerzas. A una computadora est谩ndar se le dio capacidad de comunicaci贸n Bluetooth por medio de un adaptador USB, desde la cual se ejecuta un programa creado en C++ para controlar las acciones de la interfaz h谩ptica, enviar los comandos de movimiento al veh铆culo y recibir la informaci贸n de los sensores, la cual reproduce sensaciones al operador
Internet de las cosas y microalgas: 驴qu茅 tienen en com煤n?
En la actualidad existe una creciente necesidad聽en diferentes campos de la investigaci贸n,la producci贸n y la industria de agricultura de聽precisi贸n, de almacenar y procesar datos provenientes聽de m煤ltiples sensores, muchos de聽estos ubicados en lugares remotos
Teleoperaci贸n de un veh铆culo remoto en un medio de acceso inal谩mbrico mediante el uso de una interfaz h谩ptica
Teleoperation allows human beings to carry out certain tasks in places far away, inaccessible or with hostile conditions for the presence of an operator. In this project a remote vehicle is teleoperated using a bluetooth wireless connection, to accomplish this an haptic interface (Novint Falcon) was used. The operator can give movement instructions to the vehicle and obtain sensations, according to the information received from the sensors connected to the system. The remote vehicle was a Lego Mindstorms with bluetooth communication capabilities, a touch sensor and ultrasonic sensor were included in order to perceive reflection of forces through the haptic interface. A USB adapter for bluetooth communication was added to a standard computer; a program in C++ is executed over this computer to control the haptic interface, send movement commands to the vehicle and receive sensor information to reproduce sensations to the operator.La teleoperaci贸n permite que el ser humano pueda llevar a cabo ciertas tareas en lugares muy lejanos, de dif铆cil acceso o de condiciones hostiles para la presencia de un operador. Con este proyecto se logr贸 teleoperar un veh铆culo remoto por medio del protocolo de comunicaci贸n Bluetooth, para lo cual se adapt贸 una interfaz h谩ptica (Novint Falcon). Desde la interfaz, el operador puede enviar la consigna de movimiento y, adem谩s, obtener sensaciones conforme a la informaci贸n de los sensores incluidos al sistema. Como veh铆culo remoto se utiliz贸 un Lego Mindstorms con capacidad de comunicaci贸n Bluetooth, al cual se incorpor贸 un sensor de contacto y otro de ultrasonido con el fin de percibir en la interfaz h谩ptica la retroalimentaci贸n de fuerzas. A una computadora est谩ndar se le dio capacidad de comunicaci贸n Bluetooth por medio de un adaptador USB, desde la cual se ejecuta un programa creado en C++ para controlar las acciones de la interfaz h谩ptica, enviar los comandos de movimiento al veh铆culo y recibir la informaci贸n de los sensores, la cual reproduce sensaciones al operador
Teleoperaci贸n de un veh铆culo remoto en un medio de acceso inal谩mbrico mediante el uso de una interfaz h谩ptica Remote vehicle teleoperation through a haptic interface
<p>La teleoperaci贸n permite que el ser humano pueda llevar a cabo ciertas tareas en lugares muy lejanos, de dif铆cil acceso o de condiciones hostiles para la presencia de un operador. Con este proyecto se logr贸 teleoperar un veh铆culo remoto por medio del protocolo de comunicaci贸n <em>Bluetooth</em>, para lo cual se adapt贸 una interfaz h谩ptica (Novint Falcon). Desde la interfaz, el operador puede enviar la consigna de movimiento y, adem谩s, obtener sensaciones conforme a la informaci贸n de los sensores incluidos al sistema. Como veh铆culo remoto se utiliz贸 un <em>Lego Mindstorms </em>con capacidad de comunicaci贸n <em>Bluetooth</em>, al cual se incorpor贸 un sensor de contacto y otro de ultrasonido con el fin de percibir en la interfaz h谩ptica la retroalimentaci贸n de fuerzas. A una computadora est谩ndar se le dio capacidad de comunicaci贸n <em>Bluetooth </em>por medio de un adaptador USB, desde la cual se ejecuta un programa creado en C++ para controlar las acciones de la interfaz h谩ptica, enviar los comandos de movimiento al veh铆culo y recibir la informaci贸n de los sensores, la cual reproduce sensaciones al operador.</p><br><p>Teleoperation allows human beings to carry out certain tasks in places far away, inaccessible or with hostile conditions for the presence of an operator.</p> <p>In this project a remote vehicle is teleoperated using a bluetooth wireless connection, to accomplish this an haptic interface (Novint Falcon) was used. The operator can give movement instructions to the vehicle and obtain sensations, according to the information received from the sensors connected to the system.</p> <p>The remote vehicle was a Lego Mindstorms with bluetooth communication capabilities, a touch sensor and ultrasonic sensor were included in order to perceive reflection of forces through the haptic interface.</p> <p>A USB adapter for bluetooth communication was added to a standard computer; a program in C++ is executed over this computer to control the haptic interface, send movement commands to the vehicle and receive sensor information to reproduce sensations to the operator.</p