17 documents found, page 1 of 2
GPS-based autonomous navigation system for multitask robotic rover for agricult...
Menezes, G.; Gaspar, Pedro Dinis; Mesquita, Ricardo; Assunção, Eduardo; Simões, M.P.As a result of the increasing world population and the growing demand for food, there is a great need to increase agricultural productivity. However, the problem is aggravated by the population migration from rural areas to cities, which causes a decrease in the workforce in the agricultural sector. In this regard, within the concept of agriculture 4.0, the introduction of autonomous robots in agricultural acti...
Navigation system of autonomous multitask robotic rover for agricultural activi...
Simões, J.P.; Gaspar, Pedro Dinis; Assunção, Eduardo; Mesquita, Ricardo; Simões, M.P.Introducing robotics in agriculture can allow a rise in productivity and a reduction in costs and waste. Its capabilities can be enhanced to or above the human level, enabling a robot to function as a human does, but with higher precision, repeatability, and with little to no effort. This paper develops a detection algorithm of peach trunks in orchard rows, as autonomous navigation and anti-bump auxiliary syste...
Robotic arm and gripper to pick fallen peaches in orchards
Tavares, N.; Gaspar, Pedro Dinis; Aguiar, M.L.; Mesquita, Ricardo; Simões, M.P.The introduction of robotics in certain activities such as fruit harvesting, weed control, monitoring, spraying, soil handling, autonomous navigation, among others, contribute technologically to the sector efficacy and efficiency. The paper presents the design of a robotic gripper for picking up the fallen fruits located at the orchard ground at the end of the season, aiming to contribute for the sustainability...
Peaches detection using a deep learning technique — A contribution to yield est...
Assunção, Eduardo; Gaspar, Pedro Dinis; Mesquita, Ricardo; Simões, M.P.; Ramos, António Santos; Proença, Hugo; Inácio, Pedro R.M.Fruit detection is crucial for yield estimation and fruit picking system performance. Many state-of-the-art methods for fruit detection use convolutional neural networks (CNNs). This paper presents the results for peach detection by applying a faster R-CNN framework in images captured from an outdoor orchard. Although this method has been used in other studies to detect fruits, there is no research on peaches. ...
Multitask robotic rover for agricultural activities (R2A2): a robotic platform ...
Veiros, André; Mesquita, Ricardo; Gaspar, Pedro Dinis; Simões, M.P.This paper describes the latest innovations in agricultural robotics, specifically for weed control, harvesting and monitoring, taking into account the challenges of introducing robotics in this sector, such as fruit detection, orchard navigation, task planning algorithms, or sensors optimization. One of the trends in precision agriculture is the introduction of swarm robotics, allowing collaboration between ro...
Peaches Detection Using a Deep Learning Technique - A Contribution to Yield Est...
Assunção, Eduardo Timóteo; Gaspar, Pedro Dinis; Mesquita, Ricardo; Simões, Maria Paula; Ramos, António; Proença, H.; Inácio, Pedro R. M.Fruit detection is crucial for yield estimation and fruit picking system performance. Many state-of-the-art methods for fruit detection use convolutional neural networks (CNNs). This paper presents the results for peach detection by applying a faster R-CNN framework in images captured from an outdoor orchard. Although this method has been used in other studies to detect fruits, there is no research on peaches. ...
PrunusBOT - Sistema robótico aéreo autónomo de pulverização controlada e previs...
Gaspar, Pedro Dinis; Assunção, Eduardo; Mesquita, Ricardo; Veiros, André; Ramos, António Santos; Simões, M.P.A robótica autónoma destinada a operações de análise e atuação nas culturas agrícolas tem vindo a evoluir, existindo exemplos de monitorização de culturas, de rega automatizada (que integra diferente informação edáfica e meteorológica), de aplicação localizada de fertilizantes e de herbicidas, de colheita automatizada e de manuseamento/transporte de cargas. Este projeto pretendeu conceber um sistema robotizado ...
Manutenção do solo em pomares de pessegueiro
Simões, M.P.; Veloso, Abel; Gaspar, Pedro Dinis; Assunção, Eduardo; Mesquita, RicardoAs culturas frutícolas requerem uma gestão otimizada de todos os fatores de produção para alcançarem níveis elevados de produtividade. O controlo das infestantes é uma prática que visa diminuir a competição que estas exercem com a cultura pelos fatores água e nutrientes, que é realizada por diferentes tipos de manutenção do solo, sendo o mais comum o sistema de aplicação de herbicida na linha e enrelvamento na ...
A Novel Path Planning Optimization Algorithm Based on Particle Swarm Optimizati...
Mesquita, Ricardo; Gaspar, Pedro DinisBird damage to fruit crops causes significant monetary losses to farmers annually. The application of traditional bird repelling methods such as bird cannons and tree netting become inefficient in the long run, requiring high maintenance and reducing mobility. Due to their versatility, Unmanned Aerial Vehicles (UAVs) can be beneficial to solve this problem. However, due to their low battery capacity that equals...
EFEITO DA ADMINISTRAÇÃO DE GLUCOSE NA MORTALIDADE E CRESCIMENTO DE LEITÕES DO N...
Norte, Mariana; Mesquita, Ricardo; Carolino, Nuno; Vicente, AntónioEste trabalho foi desenvolvido na empresa SMUR SA associada ao Aligrupo, situada no Cartaxo, Santarém e consistiu na administração, via intraperitoneal, de uma solução de Glucose a 30%, no dia do parto e algumas horas depois a vários grupos de leitões. Utilizaram-se 600 leitões resultantes do parto de 45 porcas e foram avaliados: os pesos ao nascimento e ao desmame e as taxas de mortalidade às 48h de vida dos l...