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10/07/2023 - Proper Curs d'impressió 3D a la Universitat d'Estiu 2023 de la UdL


Títol del curs de la Universitat d'Estiu: Impressió 3D: Tècniques i Materials
Adreçat a: estudiants universitaris de qualsevol titulació (reconegut amb 2 crèdits ECTS) i professorat universitari i no universitari
Objectiu: treballar el concepte d'impressió 3D en l'àmbits domèstic, professional i industrial (descripció del curs)
Dates: del 10 al 14 de juliol de 2023 (de 9.00 a 11.00 i de 11.30 a 13.30)

🕗 Curs presencial amb places limitades. Inscripció al curs fins al 7 de juilol, queden:
04/07/2023 - Proper Curs d'impressió 3D al Campus Jove Itinera 2023

Títol del curs del Campus Jove Itinera: Les impressores 3D, una infinitat de possibilitats !
Adreçat a: estudiants de 4t ESO, Batxillerat i Cicles Formatius de Grau Superior
Objectiu: presentar les possibilitats, funcionament i aplicacions de les impressores 3D (breu descripció del curs)
Dates: del 3 al 7 de juliol de 2023 (de 9.00 a 13.30)

🕗 Curs presencial amb places limitades. Inscripció al curs fins al 19 de juny, queden:
22/05/2023 - getfigure.m (version 5.6)
Sharing our Matlab function getfigure.m, actions that can be done:
  • Get the content of a figure
  • Get the content of a figure (create an exact size duplicate)
  • Get the content of an axes into the current figure
  • Get the content of an axes into the current figure (create an exact size duplicate)
  • Copy the content of an axes in the current axes
  • Copy the content of an axes in the current axes (replicating the figure and axes size)
  • Copy one line from another figure/axis
  • Copy one line from another figure/axis subsampling (reducing) the number of points
  • Undo the last 'Get' (always usefull...)
  • Cancel (just to cancel the current 'Get/Copy' action)
  • Reorder the visual stacking: send one line to the front, back, forward or backward
  • Select one object and call inspector(of the object)
  • ...

    The first call to this function adds the getfigure menu (in the current figure) and the second call deletes the getfigure menu (from the current figure):

    >> getfigure

    Also available at File Exchange as: getfigure
  • 05/05/2023 - COVID-19 is no longer a global healt emergency
    WHO says COVID-19 is no longer a global health emergency

    The WHO Director-General Tedros Adhanom Ghebreyesus said: “Yesterday, the emergency committee met for the 15th time and recommended to me that I declare an end to the public health emergency of international concern. I have accepted that advice.”

    WHO: Statement on the fifteenth meeting of the International Health Regulations (2005) Emergency Committee regarding the coronavirus disease (COVID-19) pandemic
    30/04/2023 - World population
    India to overtake China as world’s most populous country in April 2023
    India : 1,425,000,000 people
    China: 1,425,000,000 people

    United Nations Population Division: world population prospects
    20/04/2023 - Revision of the Penfield classical homunculus
    Featured Scientific paper: A somato-cognitive action network alternates with effector regions in motor cortex, Nature 2023 (April, 2023).
  • This study revises the Penfield classical homunculus mapped in 1948.

    Articulo periodístico que explica la investigación: Encuentran la región del cerebro donde se ‘funden’ cuerpo y mente, elDiario.es (abril 2023). Una revisión exhaustiva del llamado ‘homúnculo de Penfield’ revela la existencia de una región clave del cerebro que explica la conexión entre los pensamientos y nuestro cuerpo.
  • 12/04/2023 - Destacamos: Digidog
    elEconomista: Así es Digidog: el robot perruno que va a usar la Policía de Nueva York

    La Policía de la ciudad de Nueva York ha invertido 750.000 dólares en comprar dos robots con cuatro patas
    Para que les ayude en situaciones que puedan ser un peligro para las personas.
    23/03/2023 - World Meteorological Day ( + inspiring songs)
    Now we can still act, later, maybe just beggin...
    We wish we were special but we are 🐛
    Let's see what will happen / Aviam què passa ?
    23/03/2023 - RGB color selector (and picker):
    22/03/2023 - COVID-19 mass screening based on a simple olfactory test
    Featured Scientific paper: A machine learning COVID-19 mass screening based on symptoms and a simple olfactory test, Scientific Reports 2022, (Sept, 2022).
  • This study aims to develop a machine learning COVID-19 predictive tool based on symptoms and a simple olfactory test, which consists of identifying the smell of an aromatized hydroalcoholic gel.

    Artículo periodístico que explica la investigación: Desarrollan el primer sistema de cribado de COVID por el olor, LAVANGUARDIA, (Marzo 2023).
  • 21/03/2023 - New Scientific paper published by the Laboratory
    Non-Contact and Non-Intrusive Add-on IoT Device for Wireless Remote Elevator Control, Applied Sciences 2023, 13(6), 3971.

    This work proposes an Internet-of-Things (IoT) device for remote elevator control.
    This device can convert a manually operated elevator into a remote controlled elevator without requiring any intrusive manipulation or wiring connection in the elevator.
    It has been designed as an add-on tool which is placed over the original elevator button panel, using servomotors to press the original buttons.

    Nota de premsa de la UdL: La UdL desenvolupa un dispositiu per utilitzar l'ascensor sense prémer botons (28 març 2023).
    Facebook de la UdL, Web de notícies de l'EPS, Corporació Catalana de Mitjans Audiovisiuals, diari Segre (cat), diario Segre (esp), LaMañana, LAVANGUARDIA, territoris.cat.
    19/03/2023 - Aitona en flor

    Foto de les flors dels pressegurers dels camps d'Aitona (comarca del Segrià, a 21 km de Lleida i a 5 km d'Alcarràs). Tot un espectacle que ens ofereix la natura !
    13/03/2022 - Work in progress with a 4 Wheel Mecanum (Omnidirectional) Mobile Robot (4WMMR) [ ]
    10/03/2022 - Work in progress with a STM32H747XI MCU [ ]
    25/02/2023 - Destaquem: First Lego League 2023
    L'Escola Politècnica Superior de la UdL organitza la First Lego League 2023

    El 25 de febrer a Lleida i el 4 de març a Igualada
    26/01/2023 - Featuring: LIBICP
    LIBICP: C++ Library for Iterative Closest Point Matching

    LIBICP (LIBrary for Iterative Closest Point fitting) is a cross-platform C++ library with MATLAB wrappers for fitting 2d or 3d point clouds with respect to each other.

    By: Andreas Geiger and Philip Lenz and Raquel Urtasun
    Blog: https://autonomousvision.github.io/
    Paper: Are we ready for autonomous driving? The KITTI vision benchmark suite, 2012 IEEE Conf. on Computer Vision and Pattern Recognition
    26/01/2023 - Featuring: Matlab based ICP implementations
    simpleICP: matlab function Iterative Closest Point Matching (also available at FileExchange)
    globalICP: A multi-scan ICP implementation for Matlab
    14/01/2023 - New research group at the UdL
    New research group to face new challenges: Logic, Optimization and Robotics (LOR)
    13/01/2023 - Canvis organitzatius a la UdL
    Després de 31 anys de funcionament, el Departament d'Informàtica i Enginyeria Industrial (DIEI) de la UdL es divideix en dos nous departaments...

    Departament d'Enginyeria Industrial i de l'Edificació (DEIE)
    Departament d'Enginyeria Informàtica i Disseny Digital (DEIDD)

    Llarga durada als nous departaments... !
    12/01/2023 - New Scientific paper published by the Laboratory
    Non-Parametric Calibration of the Inverse Kinematic Matrix of a Three-Wheeled Omnidirectional Mobile Robot Based on Genetic Algorithms, Applied Sciences 2023, 13(2), 1053.

    The application of this non-parametric calibration procedure has provided an average improvement of 82 % in the odometric estimation of the final position and orientation of the mobile robot.
    10/01/2023 - Featuring: NVIDIA Instant NeRF
    Instant NeRF
    Is a (spectacular) neural rendering model that learns a high-resolution 3D scene in seconds and can render images of that scene in a few milliseconds (YouTube demo).
    The model was developed using the NVIDIA CUDA Toolkit and the Tiny CUDA Neural Networks library. Since it’s a lightweight neural network, it can be trained and run on a single NVIDIA GPU, running fastest on cards with NVIDIA Tensor Cores.

    NVIDIA Technical Blog: a tutorial on getting started with Instant NeRF.
    21/12/2022 - Featuring: Arachne 3D printing, Arc Overhangs and Conical Slicing
    YouTube: Arc Overhangs (can) make Supports Obsolete !
    YouTube: Conical Slicing: A different angle of 3D printing
    YouTube: Cura 5 - Arachne Engine (variable line widths)
    21/12/2022 - Featuring: The Future of the Transistor Is Our Future
    Featured from IEEE Spectrum:The Future of the Transistor Is Our Future
    Nothing but better devices can tackle humanity’s growing challenges.
    30/11/2022 - Work in progress with a FLSUN 400
    29/11/2022 - Impresora 3D delta: FLSUN 400
    En 5 palabras: IM PRE SIO NAN TE
    23/11/2022 - Featuring: flapping-wing robot (amazing video demonstration)
    YouTube video: Optimal elastic wing for flapping-wing robots through passive morphing from the Robotics, Vision and Control Group (GRVC) of the University of Seville
    15/11/2022 - World population

    The global population is projected to reach 8,000,000,000 people today !

    United Nations report: World population to reach 8 billion on 15 November 2022
    14/11/2022 - La movilidad está cambiando
    Featuring: A Better Route Planner, un planificador de movilidad con coche eléctrico.
    11/11/2022 - 1a Fira MAKER Lleida
    1a Fira MAKER Lleida

    Divendres 11 i Dissabte 12 de Novembre, de 11h a 21h, a l'edifici del Mercat del Pla
    Organitzat per diverses associacions i entitats lleidatanes per difondre el món de les impressores 3D i la realitat virtual a Lleida. Durant els dos dies s'hi faran diverses xerrades i activitats.
    El Laboratori de Robòtica de la UdL hi participarà amb un estand on es presentaran (entre altres):
  • Un sistema de visió 3D utilitzat per aconseguir que els robots hi puguin veure (càmera RGB-D)
  • El nas electrònic Osmee One desenvolupat pel laboratori
  • Un prototipus (Maker customitzat) d'impressora 3D amb 2 extrusors
  • Un tamboret de dos materials dissenyat per a ser creat amb una única impressió 3D
  • Un Kart elèctric "Maker" fet per un estudiant del laboratori a partir d'un motor d'arrencada

    Article del diari Segre: La UdL crea un tamboret amb una impressora 3D (11/11/2022)
    Article del diari Segre: Naix Fira Maker Lleida, un espai de creacions 3D (08/10/2022)
  • 14/10/2022 - New Scientific paper published by the Laboratory
    Optimal PID Control of a Brushed DC Motor with an Embedded Low-Cost Magnetic Quadrature Encoder for Improved Step Overshoot and Undershoot Responses in a Mobile Robot Application, Sensors 2022, 22(20), 7817.

    This paper describes the optimization of the PID control of a brushed DC motor (BDCM) with an embedded low-cost magnetic quadrature encoder. This paper demonstrates empirically that the feedback provided by low-cost magnetic encoders produces some inaccuracies and control artifacts that are not usually considered in simulations, proposing a practical optimization approach in order to improve the step overshoot and undershoot controller response.
    13/10/2022 - New Scientific paper published by the Laboratory
    Application of a Single-Type eNose to Discriminate the Brewed Aroma of One Caffeinated and Decaffeinated Encapsulated Espresso Coffee Type, Chemosensors 2022, 10(10), 421.

    This paper assesses a prototype single-type electronic nose (eNose) applied to differentiate the complex aromas generated by the caffeinated and decaffeinated versions of one encapsulated espresso coffee mixture type. The eNose has been developped by the laboratory and is composed of 16 single-type (identical) metal–oxide semiconductor (MOX) gas sensors based on microelectromechanical system (MEMS).

    Diari Segre.com: El 'nas electrònic' de la UdL fins i tot distingeix el cafè descafeïnat (05/11/2022)
    Diario Segre.com: La 'nariz electrónica' de la UdL distingue hasta el café descafeinado (05/11/2022)
    05/10/2022 - Destaquem: Els robots entren als hospitals
    Article del diari EL PUNT AVUI: Els robots entren als hospitals

    L'article descriu una prova pilot que s'està fent amb el robot Rose, que es una adaptació Neerlandesa del prototipus de robot TIAGo fabricat per l'empresa Pal-Robotics (ubicada a Barcelona).
    El robot entra a les habitacions per comprovar que tothom és al llit i dorm sense problemes.
    Segons s'indica a l'article, el robot utilitza una càmera infraroja per revisar l'habitació i avisar en cas de que la porta estigui tancada, si el pacient es troba caigut al terra o si la barana del llit està abaixada.
    23/09/2022 - matrix2WordEq.m
    Sharing our Matlab function: matrix2WordEq.m

    This function helps to copy a matlab matrix into a Word equation (trhough clipboard).
    1) Create an empty equation in word. 2) Call this function. 3) Click over the Word equation. 4) Wait until the whole matrix has been copied (do not change the focus from Word).

    >> matrix2WordEq(M);
    13/09/2022 - Destaquem: Fa un segle que es va posar en funcionament la central de Camarasa
    Article del suplement dominical del Segre: A Camarasa van fer la llum
    La Canadiense va posar en marxa la central de Sossís al 1912, Seròs al 1914, Talarn al 1916 i Camarasa al 1920.
    05/09/2022 - Featuring: Mirror/Cast an Android display to W11
    YouTube Video: Wireless (with an embedded W11 APP): How to Mirror/Cast Your Android Display to a W11.
    YouTube Video: Via USB (with a free software): How to mirror phone screen to PC via USB por free.
    25/07/2022 - New Scientific paper published by the Laboratory
    The Assistant Personal Robot Project: From the APR-01 to the APR-02 Mobile Robot Prototypes, Designs 2022, 6(4), 66.

    This paper describes the evolution of the Assistant Personal Robot (APR) project developed at the Robotics Laboratory of the University of Lleida, Spain. This paper describes the first APR-01 prototype design developed in this project and the basic hardware and anthropomorphic improvements proposed to maximize the perceived affinity with the new evolved APR-02 mobile robot prototype design.
    14/07/2022 - New Scientific paper published by the Laboratory
    Classification of Three Volatiles Using a Single-Type eNose with Detailed Class-Map Visualization, Sensors 2022, 22(14), 5262.
    Paper published in the Special Issue: Electronic Gas Sensors, Sensor Arrays, and Electronic Noses for Indoor and Outdoor Environment Monitoring

    The paper assesses the multivariate classification performance of a custom, low-cost eNose composed of 16 single-type (identical) MOX gas sensors for the classification of three volatiles. The paper proposes improving the visual interpretation of the classification results by means of generating a detailed 2D class-map representation based on the inverse of the orthogonal linear transformation obtained from a PCA and LDA analysis.
    06/07/2022 - SAAEI 2022 ( Presencial )
    Lleida del 6 al 8 de julio
    Seminario Anual de Automática, Electrónica Industrial e Instrumentación

    https://www.saaei.org/ediciones/edicion2022/
    04/06/2022 - New Scientific paper published by the Laboratory
    Enhancing the Sense of Attention from an Assistance Mobile Robot by Improving Eye-Gaze Contact from Its Iconic Face Displayed on a Flat Screen, Sensors 2022, 22(11), 4282.
    Paper published in the Special Issue: Practical Application of Sensors and Signal Processing Techniques in Mobile Robots

    This paper presents the enhancement of the sense of attention from the face of a human-sized mobile robot during an interaction. The perception of eye-gaze contact has been improved by manually calibrating the gaze of the robot relative to the location of the face of the person interacting with the robot. The sense of attention has been further enhanced by implementing cyclic face explorations with saccades in the gaze and by performing blinking and small movements of the mouth.
    20/05/2022 - Treball en curs: impressió 3D combinant dos colors
    Impressora: Ultimaker S5
    Cura 4.13.1: Profile de la impressió
    Filaments: PLA, 2 x 2,85 mm

    Comparació dels dos resultats
    Impressora: JGMaker Artist-D Pro
    Cura 4.13.1: Profile de la impressió
    Filaments: PLA, 2 x 1,75 mm

    Comparació dels dos resultats
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