24/07/2024 - getfigure70.m (version 7.0)
Sharing our Matlab tool getfigure70.m (version 7.0) that simplifies the copy of axis, lines, and images from another figure.
Click on the image to see the the menus and submenus of the tool.The first call to this function adds a new Getfigure menu (in the current figure) and the second call deletes the Getfigure menu (in the current figure):
>> getfigure70
16/07/2024 - Music for the summer
The same dream by different minds:• The Mamas & The Papas
• Barry McGuire
• Sia
• Freischwimmer
12/07/2024 - 'roseus' colormap for Matlab
Sharing our Matlab function: roseus.m (also available at FileExchange)
c = roseus(M) returns an M-by-3 matrix containing the 'roseus' colormap.
roseus, by itself, uses the length of the current figure's colormap.
It works like the other colormaps: hot, hsv, parula, gray,...
The 'roseus' colormap is used in audacity for improved spectrum visualization.
Adjust the color limits of the spectrum image to mimic the audacity spectrum.
Usage examples:
>>c = roseus(15); % returns a 15x3 'roseus' colormap
>>c = roseus; % returns a Mx3 colormap, M is the length of the current figure's colormap or 64 (shown in the figure)
>>colormap(roseus); % sets the 'roseus' colormap on the current figure
12/07/2024 - Display a Matlab matrix as text
Sharing our Matlab function: matrix2m.m (also available at FileExchange)
matrix2m(A, digits) returns the matrix A as a displayed text.
Designed to copy/add a raw matrix into an m file.
The matrix A can have one, two or three dimensions
Usage example:
>>A = rand(1,4);
>>matrix2m(A); % returns the text description of A, as follows
Text to be copied into your m file:
A = [0.2583 0.4094 0.5951 0.2626];
12/07/2024 - Apagones eléctricos evitados (ya van dos en tres meses)
• Segundo apagón eléctrico evitato (a las 22:01 h del 10/07/2024)Artículo de elEconomista: Red Eléctrica corta el suministro por segunda vez este año a la industria por riesgo de apagón
Causas: reducción de producción de ciclo combinado y menor producción eólica.
• Primer apagón eléctrico evitato (a las 21:14 h del 22/05/2024)
Artículo de elEconomista: REE detuvo anoche el suministro eléctrico a la gran industria para evitar un gran apagón en toda España
Causas: parón no programado de la central nuclear de Ascó y menor producción eólica.
08/07/2024 - Featuring a Star Wars fan film (5:20 min)
Featuring a spectacular Star Wars fan film: X-Wing, directed by Christopher Parks and produced by Noble Engine
If you found the 5:20 minutes too short, here you have the the making of
08/07/2024 - Curs d'impressió 3D a la Universitat d'Estiu 2024 de la UdL
Títol del curs de la Universitat d'Estiu: Impressió 3D: Tècniques i MaterialsObjectiu: treballar el concepte d'impressió 3D en l'àmbits domèstic, professional i industrial
Adreçat a: estudiants universitaris i Grau/Màster de qualsevol titulació
Curs reconegut amb: 2 crèdits ECTS
Dates: del 8 al 12 de juliol de 2024 (de 9.00 a 11.00 i de 11.30 a 13.30)
04/07/2024 - COVID !
• Article de La Mañana (Lleida, 03/07/2024): Pugen de 343 a 358 els casos de Covid en una setmana a Lleida• Article de La Mañana (Lleida, 28/06/2024): El Covid es multiplica per cinc a Lleida i Salut ho atribueix a un canvi de la variant en circulació
Accés al Sistema d'Informació per a la Vigilància d'Infeccions a Catalunya (SIVIC): https://sivic.salut.gencat.cat/
• A Retrospective Analysis of Indoor CO2 Measurements Obtained with a Mobile Robot during the COVID-19 Pandemic, Sensors 2024, 24, 3102.
25/06/2024 - Cursos del Campus Jove Itinera 2024 (adreçats a estudiants de 4t ESO / BTX / CFGS)
Curs: Sigues estudiant d’Enginyeria durant una setmana: introducció a la programació amb Arduino. 25 - 28 de juny: 9.00 a 14.00.Introducció al concepte de programació informàtica utilitzant, de forma pràctica, un microcontrolador Arduino tal i com es faria en una aplicació d’enginyeria.
Curs: Sigues estudiant d’Enginyeria durant una setmana: introducció al disseny i a la impressió 3D.1 - 5 de juliol: 9.00 a 13.00.
Descripció pràctica i entenedora de les possibilitats de disseny i impressió de peces de 3D, tot experimentant amb diverses impressores 3D.
21/06/2024 - Buenos consejos para evitar a los mosquitos
✋
Artículo de elEconomista: Adiós al mosquito en la habitación: el método japonés que los destierra para siempre
19/06/2024 - Featuring: MediaPipe demo
MediaPipe is a machine learning (ML) solution. Some JavaScript ready-to-use web examples:More ready-to-use examples: https://codepen.io/mediapipe
19/06/2024 - Work in progress: Using TPU as a support material
12/06/2024 - AI...
Youtube video of the project Astra... Wow !YouTube video introducing GPT-4o
Artículo publicado a EL PAÍS (19/05/2024): La nueva inteligencia artificial cava la tumba de los buscadores y asistentes tradicionales
11/06/2024 - New scientific paper published
Defining the Consistent Velocity of Omnidirectional Mobile Platforms,
Machines 2024, 12, 397.This paper proposes the definition of the consistent velocity of omnidirectional mobile platforms. This velocity is an upper bound to the translational velocity of the mobile platform, which is defined as the minimum of the maximum translational velocities achievable in any angular orientation.
It depends on the mechanical configuration of the omni-wheels of the platform and on the maximum angular velocity allowed by the motors driving the omni-wheels.
It has been found that the consistent velocity does not depend on the relative orientation of the omni-wheels in the mobile platform.
07/06/2024 - getfigure68.m (version 6.8)
Sharing our Matlab tool getfigure68.m (version 6.8) that simplifies the copy of axis, lines, and images from another figure.
Click on the image to see the the menus and submenus of the tool.The first call to this function adds a new Getfigure menu (in the current figure) and the second call deletes the Getfigure menu (in the current figure):
>> getfigure68
13/05/2024 - New scientific paper published
A Retrospective Analysis of Indoor CO2 Measurements Obtained with a Mobile Robot during the COVID-19 Pandemic,
Sensors 2024, 24, 3102.
09/05/2024 - Work in progress: 3D printing of XL objects with a Creality S5
18/04/2024 - Nou logotip del laboratori
Laboratori d'Automatització i Robòtica de la UdL
els tres colors simbolitzen la il·lusió, la dedicació i la determinació amb la que es realitzen...
..i la combinació d'enginyeria mecànica, electrònica i informàtica necesssaria per dur-los a terme
04/04/2024 - Coste de la energía activa de la tarifa PVPC y comparador de tarifas de la OCU
Web de ESIOS (web del Sistema de Información del Operador del Sistema) con la información horaria del coste de la energía activa.Información de la evolución diaria del término de facturación de Energía Activa de la tarifa PVPC: https://www.esios.ree.es/es/pvpc
>> Comparador de tarifas la OCU: https://www.ocu.org/vivienda-y-energia/gas-luz/simulador
Información de Generación y Consumo Eléctricos: demanda de MW prevista, programada y real
Mapa de instalaciones de producción eléctrica / hidráulicas / eólicas / fotovoltáicas
16/03/2024 - Featuring Figure 01 robot performing Speech-to-Speech Reasoning
Yes, soon they will be ready...
14/03/2024 - Dia del número π = 3,141592653... y 31 trillones de decimales más !
Es la fecha en notación inglesa de mes-día que representa el número: 03-14Se supone que si se organiza alguna fiesta de celebración debería empezar a las 16 h
O... si se quiere ser más preciso... a las 15:56 h
El minuto 56 se obtiene redondeando la conversión en fracción de hora de 92653, es decir 60 min * 0,92653 = 55,59 min o 55 min 35 s
11/03/2024 - Featuring an omnidirectional robotic platform for harsh environments
Reference robotics paper: Omnidirectional Robotic Platform for Surveillance of Particle Accelerator Environments with Limited Space Areas, Appl. Sci. 2021.
01/03/2024 - Some promising humanoid robots under development
29/02/2024 - Interesting technical report offered by Farnell
Single Board Computer (SBC) powered drones for aerial inspection.
SBC play a pivotal role in complex computations and are crucial components in complex drone types.
Link to the technical report
26/02/2024 - Using TPU as support material during 3D printing
Test of TPU (white) as support material for a complex PLA (blue) piece with holes in a cantilevered area.
Best results obtained when designing a solid suport TPU piece than when using TPU as support material.
First Lego League a l'Escola Politècnica Superior de la UdL
>> 02/03/2024 - First Lego League a l'Escola Politècnica Superior de la UdL (Campus d'Igualada)
>> 24/02/2024 - First Lego League a l'Escola Politècnica Superior de la UdL (Campus de Cappont)
Més informació a: https://www.firstlegoleague.udl.cat/
05/02/2024 - Featuring a (dance) video that is inspiring some robotic work
Dance Battle: Robot vs Human vs Alien
31/01/2024 - Work in progress
18/01/2024 - Gestionar la firma electrónica en Chrome
Pasos a seguir:
15/01/2024 - Work in progress
08/01/2024 - Featuring a new scientific advance: Student of Games
Student of Games: A unified learning algorithm for both perfect and imperfect information games. Science Advances, November 2023.Student of Games is a general-purpose algorithm that combines guided search, self-play learning, and game-theoretic reasoning.
21/12/2023 - New version (5.1) of the SLAMICP-Library
This new version 5.1 of the SLAMICP-Library optimizes the "point_to_plane" ICP matching by avoiding to compute the normals of the reference map in each iteration.
There is also a specific function to compute the normals (red arrows) of a point cloud (blue points).
30/11/2023 - La movilidad (en coche eléctrico) sigue cambiando
Chargemap, un localizador de cargadores. Disponible como WEB y APP.
OPENCHARGEMAP, un localizador de cargadores. Disponible como WEB y APP.
ELECTROMAPS, un localizador de cargadores. Disponible como WEB y APP.
16/11/2023 - Featuring: shadowmap
Shadowmap, free sunlight and shadow visualization on an interactive 3D map.No registration needed for the current day visualization.
10/11/2023 - Vídeos YouTube interessants
28/10/2023 - New Scientific paper published by the Laboratory
Path Planning of a Mobile Delivery Robot Operating in a Multi-Story Building Based on a Predefined Navigation Tree,
Sensors 2023, 23, 8795.This paper presents a solution to the problem of planning the path of a mobile robot that must transport and deliver small packages inside a multi-story building. This solution combines spatial and operational information, such as the location of origin and destination points and how to interact with elevators.
YouTube Video: Path Planning for a multi-story mobile robot
17/10/2023 - Copy a Matlab matrix in Word
Sharing our Matlab functions: matrix2WordTable.m and matrix2WordEq.m>> matrix2WordTable(M);
This function copies the matlab matrix M into a Word document (through the clipboard):
1) Create an space for the table in word. 2) Go to Matlab and call this function. 3) Click over Word. 4) Wait until the whole matrix has been copied (do not change the focus from Word).
Function also avialable at Fileexchange.
>> matrix2WordEq(M);
This function copies the matlab matrix M into a Word equation (through the clipboard):
1) Create an empty equation in word. 2) Go to Matlab and 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).
Function also avialable at Fileexchange.
05/09/2023 - dijkstra.m (version 1.0)
Sharing our Matlab function dijkstra.m
( also available at FileExchange )A single-function implementation of Dijkstra's algorithm for shorter path finding in a directed matrix-graph
Didactic reference at: Dijkstra's algorithm explained, https://youtu.be/bZkzH5x0SKU
% Matrix-Graph example G
% G(a,b)=z defines a directional link (with a weight z) from the node a to b
G = [0 1 0 0 0 0 0;
0 0 1 0 0 10 0;
2 0 0 1 0 0 0;
0 0 2 0 1 0 0;
0 0 0 2 0 1 0;
0 0 0 0 2 0 1;
0 0 0 0 0 2 0];
initialNode = 1;
finalNode = 7;
[best_route,cost,M] = dijkstra(G,initialNode,finalNode)
best_route =
1 2 3 4 5 6 7
cost =
6
% Interpretation of the columns of the Dijkstra matrix M
% Node number | best previous node | cumulated path lenght or cost | node visited
M =
1 0 0 1
2 1 1 1
3 2 2 1
4 3 3 1
5 4 4 1
6 5 5 1
7 6 6 1
03/09/2023 - Rècord de temperatura mínima a Lleida
Diari Segre: Primera nit tòrrida a Lleida, amb una mínima de 25,2 ºC
01/08/2023 - New Scientific paper published by the Laboratory
SLAMICP Library: Accelerating Obstacle Detection in Mobile Robot Navigation via Outlier Monitoring following ICP Localization,
Sensors 2023, 23, 6089.This work proposes to speed up the obstacle detection process by directly monitoring outliers (discrepant points between the LIDAR scans and the full map) spotted after Iterative Closest Point (ICP) matching instead of spending time performing an isolated task to re-analyze the LIDAR scans to detect those discrepancies.
This paper features the SLAMICP Library: a Free and Open Source library that we developped to implement ICP matching returning the outliers detected and other internal matching parameters during mobile robot navigation.
Point Cloud application example of the SLAMICP Library
Mobile robot following a planned trajectory: the blue dots depict the 2D map of the facility;
the dotted cyan points depict the planned trajectory and the green arrow the final position and orientation that must be achieved by the mobile robot;
the solid olive line depict the real trajectory followed by the mobile robot and the brown arrow depit ist current position and orientation;
the red points are the outliers detected after ICP matching that (in this case) reveal one side of an obstacle placed in the corridor.
26/07/2023 - Open Special Issue "LIDAR Applications in Mobile Robots"
Opening a Special IssueThis Special Issue LIDAR Applications in Mobile Robots belongs to the section "Sensors and Robotics" of the journal Sensors
18/07/2023 - Featuring 2015 "Space Oddity" from the Space Station
YouTube: Astronaut Chris Hadfield performing 'Space Oddity' (David Bowie) in the Space Station (2015)
14/07/2023 - Featuring a Robotic YouTube Video
YouTube: Open-Vocabulary 3D Scene Graph for Autonomous Indoor Navigation
05/07/2023 - Procediment per comprovar i reparar els arxius de sistema de Windows 11
En cas de que durant l'arrencada o al crear un fitxer nou Windows 11 tardi més del normal es pot fer servir SFC (System File Checker - comprovador i reparador dels arxius del sistema):1. Obrir un CMD (consola o finestra de comandes) com administrador
2. Executar el SFC, teclejant a la consola: sfc /scannow
3. Esperar a que el procés de comprovació acabi
Exemple mostrant com fer-ho
05/07/2023 - Truc per utilitzar diverses versions de Word, Excel,...
Al registre, seleccionar per cada versió d'office l'aplicació (Word, Excel,...); a Options afegir DWORD (32-bit) amb el nom NoRereg i posar-li 1Exemple mostrant com fer-ho
Es pot fer directament des de cmd: Reg.exe add "HKCU\Software\Microsoft\Office\12.0\Word\Options" /v "NoRereg" /t REG_DWORD /d "1" /f
19/05/2023 - Highlighting LLaMA (the open source Artificial Intelligence of Meta)
Introducing LLaMA (Large Language Model Meta AI): A foundational, 65-billion-parameter large language modelPaper at arxiv.org: LLaMA: Open and Efficient Foundation Language Models
Other related research papers at: https://ai.facebook.com/research/
Xataka: Qué es LLaMA, cómo funciona y qué sabemos de la inteligencia artificial de Meta
Computer vision: Advancing the state of the art in computer vision with self-supervised Transformers and 10x more efficient training
Paper on DINO: Emerging Properties in Self-Supervised Vision Transformers (code)
Paper on PWAS: Semi-Supervised Learning of Visual Features by Non-Parametrically Predicting View Assignments with Support Samples (code)
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 ?
14/01/2023 - New research group at the UdL
New research group to face new challenges:
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 Informàtica i Disseny Digital (DEIDD)
Llarga durada als nous departaments... !
13/09/2022 - Destaquem: Fa un segle que es va posar en funcionament la central de Camarasa
Article que formaba part del suplement dominical del diari Segre del 11/09/2022: A Camarasa van fer la llumLa empresa Barcelona Traction, Light and Power Company, Limited, coneguda com La Canadiense, va posar en marxa la central de Sossís al 1912, Seròs al 1914, Talarn al 1916 i Camarasa al 1920.
La empresa Energía Eléctrica de Cataluña, S.A. va posar en marxa la central de Cabdella al 1914 (vídeo YouTube del museu), situada a la Vall Fosca (a l'Estany Gento, amb un canal de 5 km i un desnivell de 836 m, rècord de -32ºC al 1956).
Turbines hidroelèctriques més utilitzades: Francis, Pelton i Kaplan (més informació de les turbines)
© Laboratori d'Automatització i Robòtica, Universitat de Lleida