A5018320582- Indoor and Outdoor Localization Technologies
- Underwater Vehicles and Communication Systems
- Speech and Audio Processing
- Scientific Computing and Data Management
- Context-Aware Activity Recognition Systems
- Robotics and Sensor-Based Localization
- Energy Efficient Wireless Sensor Networks
- GNSS positioning and interference
- Gait Recognition and Analysis
- Structural Health Monitoring Techniques
- Artificial Intelligence in Healthcare and Education
- Target Tracking and Data Fusion in Sensor Networks
- Ultrasonics and Acoustic Wave Propagation
- Flow Measurement and Analysis
- Mobile Crowdsensing and Crowdsourcing
- Dielectric materials and actuators
- Industrial Vision Systems and Defect Detection
- Inertial Sensor and Navigation
- Rocket and propulsion systems research
- Acoustic Wave Phenomena Research
- Non-Destructive Testing Techniques
- RFID technology advancements
- Smart Parking Systems Research
- Distributed Sensor Networks and Detection Algorithms
- Optical measurement and interference techniques
Centre for Automation and Robotics
2013-2024
Consejo Superior de Investigaciones Científicas
2013-2024
Técnicas Reunidas (Spain)
2022
Centro Nacional de Investigaciones Científicas
2021
Unidades Centrales Científico-Técnicas
2008-2020
Universidad Politécnica de Madrid
2011-2019
National Research Council
2010
Indra (Spain)
2006
Human localization is a very valuable information for smart environments. state-of-the-art local positioning systems (LPS) require complex sensor-network infrastructure to locate with enough accuracy and coverage. Alternatively, inertial measuring units (IMU) can be used estimate the movement of person, by detecting steps, estimating stride lengths directions motion; methodology that called pedestrian dead-reckoning (PDR). In this paper, we use low-performance microelectromechanical (MEMS)...
The estimation of the position a person in building is must for creating Intelligent Spaces. State-of-the-art Local Positioning Systems (LPS) require complex sensor-network infrastructure to locate with enough accuracy and coverage. Alternatively, Inertial Measuring Units (IMU) can be used estimate movement person; methodology that called Pedestrian Dead-Reckoning (PDR). In this paper, we describe implement Kalman-based framework, INS-EKF-ZUPT (IEZ), attitude while walking. IEZ makes use an...
We present a new method to accurately locate persons indoors by fusing inertial navigation system (INS) techniques with active RFID technology. A foot-mounted measuring units (IMUs)-based position estimation method, is aided the received signal strengths (RSSs) obtained from several tags placed at known locations in building. In contrast other authors that integrate IMUs and RSS loose Kalman filter (KF)-based coupling (by using residuals of inertial- RSS-calculated positions), we tight...
This document provides a survey of the mathematical methods currently used for position estimation in indoor local positioning systems (LPS), particularly those based on radiofrequency signals. The techniques are grouped into four categories: geometry-based methods, minimization cost function, fingerprinting, and Bayesian techniques. Comments applicability, requirements, immunity to nonline-of-sight (NLOS) propagation signals each method provided.
Several UWB location systems have already been proposed for accurate position estimation. These systems, some available at commercial level, and others implemented as laboratory test-beds, individually evaluated particular applications under different fusion strategies. In this paper we compare two commercially (Decawave Bespoon) exactly the same experimental conditions, in order to generate a critical analysis about their performances. The includes characterization of range error...
In GPS-denied indoor environments, localization and tracking of people can be achieved with a mobile device such as smartphone by processing the received signal strength (RSS) RF signals emitted from known location beacons (anchor nodes), combined Pedestrian Dead Reckoning (PDR) estimates user motion. An enhacement this technique is feasible if users themselves carry additional emitters (mobile cooperative position group persons incorporate RSS measurements exchanged between users. We...
Every year, for ten years now, the IPIN competition has aimed at evaluating real-world indoor localisation systems by testing them in a realistic environment, with movement, using EvAAL framework. The provided unique overview of state-of-the-art systems, technologies, and methods positioning navigation purposes. Through fair comparison performance achieved each system, was able to identify most promising approaches pinpoint critical working conditions. In 2020, included 5 diverse off-site...
These days, mass-produced vehicles benefit from research on Intelligent Transportation System (ITS). One prime example of ITS is vehicle Cruise Control (CC), which allows it to maintain a pre-defined reference speed, economize fuel or energy consumption, avoid speeding fines, focus all the driver’s attention steering vehicle. However, achieving efficient not easy in roads urban streets where sudden changes speed limit can happen, due presence unexpected obstacles maintenance work, causing,...
In recent years, indoor localization systems have been the object of significant research activity and growing interest for their great expected social impact impressive business potential. Application areas include tracking navigation, monitoring, personalized advertising, Active Assisted Living (AAL), traceability, Internet Things (IoT) networks, Home-land Security. spite numerous advances industrial interest, no canned solutions yet defined. The diversity heterogeneity applications,...
The Indoor Positioning and Navigation (IPIN) conference holds an annual competition in which indoor localization systems from different research groups worldwide are evaluated empirically. objective of this is to establish a systematic evaluation methodology with rigorous metrics both for real-time (on-site) post-processing (off-site) situations, realistic environment unfamiliar the prototype developers. For IPIN 2018 conference, was held on September 22nd, 2018, Atlantis, large shopping...
This paper presents the analysis and discussion of off-site localization competition track, which took place during Seventh International Conference on Indoor Positioning Navigation (IPIN 2016). Five international teams proposed different strategies for smartphone-based indoor positioning using same reference data. The competitors were provided with several smartphone-collected signal datasets, some used training (known trajectories), others evaluating (unknown trajectories). permits a...
The development of indoor positioning solutions using smartphones is a growing activity with an enormous potential for everyday life and professional applications. research activities on this topic concentrate the new that are tested in specific environments under their own evaluation metrics. To explore real quality smartphone-based capabilities seamlessly adapting to different scenarios, it needed find fair frameworks. design competitions extensive pre-recorded datasets valid way generate...
IPIN 2019 Competition, sixth in a series of competitions, was held at the CNR Research Area Pisa (IT), integrated into program Conference. It included two on-site real-time Tracks and three off-site Tracks. The four presented this paper were set same environment, made buildings close together for total usable area 1000 m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> outdoors 6000 indoors over floors, with path length exceeding 500 m....
Local positioning systems (LPSs) based on acoustic transducers (mainly ultrasonic) offer accurate localization in indoor environments. However, their performance is commonly limited by the transducers' frequency bandwidth and emission pattern. 3D-LOCUS a new advanced LPS that claims subcentimeter accuracy even turbulent This achieved through use of broadband omnidirectional transducers, suitable design emitted signals, proper calibration, bidirectional emissions. paper evaluates providing...
The main problem of Pedestrian Dead-Reckoning (PDR) using only a body-attached IMU is the accumulation heading errors. provided by magnetometers in indoor buildings general not reliable. Recently, new method was proposed called Heuristic Drift Elimination (HDE) that minimizes error when navigating buildings. It assumes majority have their corridors parallel to each other, or they intersect at right angles, and consequently most time person walks along straight path with constrained one four...
Cellular ferroelectrets exhibit interesting electromechanical- acoustical characteristics. Their recent appearance and remarkable properties open up new possibilities for the design development of ultrasonic transducers. In particular, feasibility fabricating vortex generators using ferroelectret films is demonstrated in this work. To end, a transducer prototype was built by gluing material onto tangential-helical surface (outer diameter: 40 mm, pitch: 3.45 mm). Experimental results agree...
The received signal strength (RSS) of radiofrequency signals emitted from beacons placed at known locations in an environment, can be used by a local positioning system (LPS) to estimate the location person or mobile object. In indoor environments, interference, multipath propagation RF signals, and presence obstacles people, lead complex spatial distribution RSS, which is inaccurately described simple parametric models. this work, we present Bayesian method for RFID uses observation model...
The localization of persons in indoor environments is nowadays an open problem. There are partial solutions based on the deployment a network sensors (Local Positioning Systems or LPS). Other only require installation inertial sensor person’s body (Pedestrian Dead-Reckoning PDR). PDR integrate signals coming from Inertial Measurement Unit (IMU), which usually contains 3 accelerometers and gyroscopes. main problem accumulation positioning errors due to drift caused by noise sensors. This...
The location of people, robots, and Internet-of-Things (IoT) devices has become increasingly important. Among the available technologies, solutions based on ultrawideband (UWB) radio are having much success due to their accuracy, which is ideally at a centimeter level. However, this accuracy degraded in most common indoor environments presence obstacles block or reflect signals used for ranging. One way circumvent difficulty through robust estimation algorithms measurement redundancy,...
In this work, we explore the possibilities of electromechanical film (EMFi) as a new material for developing broadband transducers ultrasonic air applications. The advantages EMFi are its wide usable frequency range and easiness to use, making it highly suitable self made, customizable sensors. This paper presents theoretical experimental information focused on needs sensor's end user, namely, response, actual dynamic mass Young's modulus, bandwidth, sensitivity, dynamical model, acoustic...
Indoor positioning is usually based on individual technologies that provide estimates of the trajectory person, or measures ranges angles between user and known positions. Each technique has its advantages problems, a common way to overcome drawbacks single-technology solutions fuse information from several system, but due their non linear measurements, there no optimal solution. We propose use particle filter foot mounted inertial measurements with any additional Radio Frequency (RF)...
Some location-aware use cases imply that a person desires to find an object relative his position. This is the case of museum visits or any indoors/outdoors activity where objects interest are not geo-referenced even can move with time. For these cases, user does need absolute localization, but information consisting range and heading angle between user's moving direction. In this paper we study two different radio technologies for finding interest: Ultra-Wide-Band (UWB) Bluetooth Low Energy...