Search results for "Robot"
showing 10 items of 1036 documents
I-Weed Robot : un robot autoguidé pour un désherbage localisé
2013
We present the development of an autonomous robot, called I-Weed Robot (Intelligent Weed Robot), which aims at reducing herbicides in crop fields (maize, sunflower…). Using a high precision positioning signal (RTK) to locate the robot in the field, a Kalman filter and a proportional-integral-derivative controller (PID controller) allows adjusting the orientation and the speed of the robot depending on a predefined trajectory. As for the specific spraying system, a commercial system is used (weedseeker, Trimble) where the plant detection is obtained by an optical sensors just before to spray specifically on them. The performance of the guidance algorithm using numerical simulations (virtual …
Analyse des mécanismes impliqués dans la détection automatisée des adventices
2017
EASPEGESTADAGROSUP; L’objectif est de développer des systèmes de proxidétection embarqués sur différentes plateformes aérienne (drone) ou terrestre (robot) dédiés, entre autre, à l’identification et la localisation d’adventices pour établir des cartes de présence d'adventices afin de mettre en oeuvre le désherbage chimique localisé. L’étude présente les premiers résultats obtenus par le drone d’AIRINOV dont la problématique est d’étudier le potentiel de l’imagerie aérienne pour la détection d’adventices. Deux approches ont été étudiées.
I-Weed robot : un outil pour l'étude de population de plantes adventices
2016
The I-Weed robot is a small autonomous platform that aims to characterize the vegetation in an inter-row maize crop for a spot spraying: spraying is done only where a weed is detected. This article presents how the robot works and aims to experimentally evaluate the ability to map weeds from a WeedSeeker system (Trimble) embedded on the I-Weed robot. The results are compared to those from an imaging system, used as ground truth. After analyzing a confusion matrix, it reveals that the system is able to correctly geotag plants at 75 % and is ready for a spot spraying.
Robotics for weed control: I-Weed Robot for a specific spraying
2012
International audience; To preserve environment for a sustainable agriculture, we explore the development of a new autonomous robot, called I-Weed Robot (Intelligent Weed Robot), which aims at reducing herbicides in crop fields (maize, sunflower...). Using a high precision positioning signal (RTK) to locate the robot in the field, a Kaman filter and a proportional-integral-derivative controller (PID controller) allow adjusting the orientation of the robot depending on a predefined trajectory. As for the spraying system, a camera in front of the mobile platform detects weed plants thanks to an image processing based on a crop/weed discrimination algorithm (Hough Transform). At the back a spr…
A novel soft robotic pediatric in vitro swallowing device to gain insights into the swallowability of mini-tablets Authors
2022
Target 5G visible light positioning signal subcarrier extraction method using particle swarm optimization algorithm
2021
International audience; With the explosive growth of demand for Internet of Things (IoT) applications and the increasing dependence of users on wireless connections, indoor location based service(LBS) under 5G-Public-Private Partnership (5G-PPP) using cases have received more attention and get rapid development. Thanks to the safty, security and customization of 5G network pointed by 5G forum white paper, indoor positioning systems using unified 5G New Radio (NR) signals have become the focus of the next generation of visible light positioning (VLP) systems. In 5G New Radio(NR) frame, totally 192 subcarriers are used to carry positioning reference signal(PRS). In order to improve the positi…
Software architectures for cloud robotics : the 5 view Hyperactive Transaction Meta-Model (HTM5)
2015
Software development for cloud connected robotic systems is a complex software engineeringendeavour. These systems are often an amalgamation of one or more robotic platforms, standalonecomputers, mobile devices, server banks, virtual machines, cameras, network elements and ambientintelligence. An agent oriented approach represents robots and other auxiliary systems as agents inthe system.Software development for distributed and diverse systems like cloud robotic systems require specialsoftware modelling processes and tools. Model driven software development for such complexsystems will increase flexibility, reusability, cost effectiveness and overall quality of the end product.The proposed …
Combining omnidirectional vision with polarization vision for robot navigation
2012
Polarization is the phenomenon that describes the oscillations orientations of the light waves which are restricted in direction. Polarized light has multiple uses in the animal kingdom ranging from foraging, defense and communication to orientation and navigation. Chapter (1) briefly covers some important aspects of polarization and explains our research problem. We are aiming to use a polarimetric-catadioptric sensor since there are many applications which can benefit from such combination in computer vision and robotics specially robot orientation (attitude estimation) and navigation applications. Chapter (2) mainly covers the state of art of visual based attitude estimation.As the unpol…
Robotique et imagerie pour le désherbage localisé
2020
National audience; L’agriculture moderne est en train d’évoluer vers des systèmes moins dépendants en pesticides (dont les herbicides restent les pesticides les plus difficiles à réduire) en ayant recours de plus en plus à des outils de précision (capteurs, plateformes mobiles) pour évaluer et prendre en compte la variabilité intra-parcellaire. Dans ce contexte, ces outils se présentent comme des leviers techniques pour une gestion raisonnée des bioagresseurs, et plus particulièrement les adventices. Cela nécessite de caractériser au mieux l’état d’infestation d’une parcelle grâce à des technologies non-invasives et à haut débit d’acquisition comme l’imagerie afin de réaliser un désherbage …
Skills Behind the Robotics : How to Re-educate Workers for the Future
2019
The aim of this study is to respond to the educational needs of the future, considering automation and robotics. It is inevitable that automation and robotics are changing our lives and they create challenges for the future work life and education. In this study, we investigate what is the educational background of the unemployed people who are in danger of being replaced by automation and what is their educational resilience for adapting work life changes. The data of this study consist of the latest PIAAC data (The Programme for the International Assessment of Adult Competencies). Based on the research we develop a model for re-educating the people who have lost their jobs. peerReviewed