A5015167979- Astronomy and Astrophysical Research
- User Authentication and Security Systems
- Biometric Identification and Security
- Modular Robots and Swarm Intelligence
- Robotic Path Planning Algorithms
- Indoor and Outdoor Localization Technologies
- Biosensors and Analytical Detection
- Embedded Systems Design Techniques
- Adaptive optics and wavefront sensing
- Robotics and Sensor-Based Localization
- Underwater Vehicles and Communication Systems
- Advanced biosensing and bioanalysis techniques
- Experimental Learning in Engineering
- E-Learning and Knowledge Management
- Face recognition and analysis
- Stellar, planetary, and galactic studies
- Low-power high-performance VLSI design
- Advanced Chemical Sensor Technologies
- Analog and Mixed-Signal Circuit Design
- Astronomical Observations and Instrumentation
- Photonic and Optical Devices
- Advanced Optical Sensing Technologies
- VLSI and FPGA Design Techniques
- Adaptive Control of Nonlinear Systems
- Control and Dynamics of Mobile Robots
Universidad Autónoma de Madrid
2010-2023
Universidad Nacional de Asunción
2013
Universidad Politécnica de Madrid
2009
Qualcomm (United Kingdom)
2008
Universidad Alfonso X el Sabio
1995
Rockwell Automation (United States)
1987-1988
Abstract A system of 5020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically retarget their optical fibers every 10–20 minutes, each to a precision several microns, with reconfiguration time fewer than 2 minutes. Over next 5 yr, they will enable newly constructed Dark Energy Spectroscopic Instrument (DESI) measure spectra 35 million galaxies and quasars. DESI produce largest 3D map universe date expansion...
Nowadays, the research in unmanned aerial vehicles has experimented a large increase, since technology that compose this kind of aircrafts been developed order to achieve many kinds tasks several fields. In paper, it is presented design criteria Quadrotor Unmanned Aerial Vehicle with an uncommon small size and heavy payload carrying combination requirement. It will be performed selection appropriate mechanical structure its configuration. This study focus structural components allow...
This paper outlines the communication and control systems of a quadrotor type Unmanned Aerial Vehicle. The system comprises two different links, one for data other video signal, all integrated by an autopilot module. link will be implemented using XBee modules Mavlink protocol. transmission consist separate links which can work together avoiding interferences orthogonal polarization each other. It is also given some insights onboard software architecture, based on Pixhawk autopilot.
The Dark Energy Spectroscopic Instrument (DESI) has embarked on an ambitious five-year survey to explore the nature of dark energy with spectroscopy 40 million galaxies and quasars. DESI will determine precise redshifts employ Baryon Acoustic Oscillation method measure distances from nearby universe z > 3.5, as well growth structure probe potential modifications general relativity. In this paper we describe significant instrumentation developed for survey. new includes a wide-field,...
Massive spectroscopic survey are becoming trendy in astrophysics and cosmology, as they can address new fundamental knowledge such Galactic Archaeology probe the nature of mysterious Dark Energy. To enable massive surveys, technology being developed to place thousands optical fibers at a given position on focal plane. These needs be: 1) accurate, with micrometer positional accuracy; 2) fast minimize overhead; 3) robust failure; 4) low cost. In this paper we present development 8-mm diameter...
In this work we present a powerful, affordable, and portable biosensor to develop Point of care (POC) SARS-CoV-2 virus detection. It is constructed from fast, low cost, electronically automatized potentiostat that controls the potential applied disposable screen-printed electrochemical platform current response. The was designed get best signal-to-noise ratio, very simple user interface offering possibility be used by any device (computer, mobile phone or tablet), have small size, cheap...
This paper presents a low cost indoor ultrasonic-based positioning system. system allows the mobile nodes of Wireless Sensor Network to know their location using radiofrequency and ultrasonics. To achieve this goal, matrix transmitting anchor points is installed whereas receive these transmitted signals estimate time-of-flight ultrasonic signals. Using two measurements trilateration equations, can be inferred in 2-D space.
The System-on-Token architecture for biometric systems gives users have full control over their data and lets them sign digital transactions using biometrics. authors implemented tested in on a commercial mobile device, the Nokia N800. implementation runs port of National Institute Standards Technology's Biometric Image Software, it can complete transaction less than two seconds, including verifying vendor, transaction, extracting features, matching signing legal X.509 certificate. system's...
The work presents the kinematic and dynamic control of a mobile robotic manipulator system based on numerical methods. proposal also curvature analysis path not parameterized in time, for optimization energy consumption. considers two aspects: velocity execution curves amount movements generated by system. When curve occurs predefined path, is analyzed throughout unified method to prevent skid effects from affecting manipulator, while number limited redundancy presented optimize use....
This paper describes a software platform used for controlling any set of collaborative robots. The is specially designed users without special skills on hardware design or communication topics. provides standard to simplify the addition new devices. system runs over Linux operating system; it accessible through different programming languages. Calls among architecture processes are performed using XML-RPC. Data transport TCP-IP based; therefore from conventional Internet link. Some...
(Abridged) This is the Maunakea Spectroscopic Explorer 2018 book. It intended as a concise reference guide to all aspects of scientific and technical design MSE, for international astronomy engineering communities, related agencies. The current version status report MSE's science goals their practical implementation, following System Conceptual Design Review, held in January 2018. MSE planned 10-m class, wide-field, optical near-infrared facility, designed enable transformative science,...
This paper presents an FPGA-based ultrasonic location system. system uses low-cost FPGAs and transducers to provide 3-D mobile nodes in indoor environment. Synchronization is reached using the radiofrequency that usually include. have been used sample ultrasonics inside a custom peripheral which attached MicroBlaze soft-processor. The calculus of position node accomplished this processor.
In this work, a new automated bioanalyzer based on the use of enzymatic biosensors as amperometric detectors is reported. This automatic configurable both continuous flow and injection analysis systems enables on-line off-line monitoring ethanol in low-alcohol beer to be performed. The attractive analytical operational characteristics demonstrated by make it promising, simple, rapid, reliable tool for quality control beverage industry, either during manufacturing process or final product....
Cooperative robotics has considered tasks that are executed frequently, maintaining the shape and orientation of robotic systems when they fulfill a common objective, without taking advantage redundancy group could present. This paper presents proposal for controlling terrestrial robots with heterogeneous characteristics, considering primary secondary thus complies following path while modifying its at any time. The development is achieved through use controllers based on linear algebra,...
This paper deals with the design of a nonlinear observer and differential flat based path tracking controller for mini aerial quadcopter. Taking into account that only inertial coordinates yaw angle are available measurements, it is shown, system differentially flat, allowing systematic control in open closed loop. A carried out to estimate roll pitch as well all linear angular velocities. Finally performance feedback illustrated computer simulation.
In the large-scale, Dark Energy Spectroscopic Instrument (DESI), thousands of fiber positioners will be used. Those are robotic positioners, with two axis, and having size a pen. They tightly packed on focal plane telescope. Dedicated micro-robots have been developed they use 4mm brushless DC motors. To simplify implementation reduce space occupancy, each actuator integrate its own electronic control board. This board used to communicate central trajectory generator, manage low level tasks...