6 results on '"Mendizabal, Jaizki"'
Search Results
2. On-board positioning strategies based on GNSS low-cost receivers for rail freight transport
- Author
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Goya, Jon, Mendizabal, Jaizki, Adin, Iñigo, De Miguel, Gorka, Roth, Michael Helmut, Ademeit, Anna-Maria, and Groos, Jörn Christoffer
- Subjects
GNSS ,Ortung ,Gütertransport ,Zustandsmonitoring - Published
- 2018
3. Precise and reliable localization as a core of railway automation (Rail 4.0)
- Author
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Hutchinson, Michael, MARAIS, Juliette, Masson, Emilie, Mendizabal, Jaizki, MEYER ZU HORSTE, Michael, Nottingham Scientific Limited, Laboratoire Électronique Ondes et Signaux pour les Transports (IFSTTAR/COSYS/LEOST), PRES Université Lille Nord de France-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), L'Institut de Recherche Technologique (IRT) de la filière Ferroviaire (IRT Railenium), Université Polytechnique Hauts-de-France (UPHF), Centro de Estudios e Investigaciones Técnicas, German Aerospace Center (DLR), Cadic, Ifsttar, and X2Rail2
- Subjects
GNSS ,RAIL ,FUSION DE DONNEES ,AUTOMATION ,LOCALIZATION ,DIGITAL ROUTE MAP ,ODOMETRY ,TRAITEMENT DU SIGNAL ,LOCALISATION ,TRANSPORT FERROVIAIRE ,TRAIN CONTROL ,GEOLOCALISATION ET NAVIGATION PAR UN SYSTEME DE SATELLITES - GNSS ,AUTOMATISATION ,[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing ,GALILEO ,SATELLITE ,[SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing - Abstract
International Congress on High-speed Rail: technologies and long term impacts, Madrid, ESPAGNE, 04-/10/2017 - 06/10/2017; High Speed Railway services have shown that Railways are a competitive and, at the same time, an environmentally friendly transport system. The next level of improvement will be a higher degree of automation, with partial or complete automatic train operation up to fully automatic unattended driverless operation to reduce energy consumption and noise, as well as improving punctuality and comfort. Based on extensive experience in separated railway systems such as Metros, VAL (Véhicule automatique léger) and subways, today's discussion focuses on the fully automatic train operation on regular railway lines. This introduces some questions that are more complex than in today's systems: the performance, length and weight of the trains spreads in a wider range; there are other and more complex operations; components such as level crossings in different equipment variants are added; requirements are higher and the technological equipment point is more heterogeneous. Many evolutionary or innovative approaches for railway automation rely on precise and reliable localization. Especially for higher levels of automation it is essential. Starting from existing technologies such as the European Train Control System (ETCS), moving on to advanced driver assistance systems for local automatic operation up to full automatic train operation (ATO), all of these solutions depend on knowledge of the position of the train on the network. Improved concepts for railway operation e.g. using moving block, on-board integrity supervision or virtual train sets will result in even higher requirements for accuracy and reliability of the localization. The contribution shows an approach based on Global Navigation Satellite Systems (GNSS) as a priority source of information used in combination with sensor data fusion. Elements such as trackside augmentation as well as the use of digital maps will be discussed. Different approaches are considered, e.g. those currently under development by projects in the innovation program in the joint undertaking Shift2Rail.
- Published
- 2018
4. AIOSAT - Autonomous Indoor & Outdoor Safety Tracking System.
- Author
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Adin, Iñigo, Zabalegui, Paul, Perez, Alejandro, Arrizabalaga, Jaione, Goya, Jon, and Mendizabal, Jaizki
- Subjects
GLOBAL Positioning System ,GALILEO satellite navigation system ,MULTISENSOR data fusion ,FIREFIGHTING ,RESCUE work - Abstract
Even though satellite-based positioning increases rescue workers' safety and efficiency, signal availability, reliability, and accuracy are often poor during fire operations, due to terrain formation, natural and structural obstacles or even the conditions of the operation. In central Europe, the stakeholders report a strong necessity to complement the location for mixed indoor-outdoor and GNSS blocked scenarios. As such, location information often needs to be augmented. For that, European Global Navigation Satellite System Galileo could help by improving the availability of the satellites with different features. Moreover, a multi-sensored collaborative system could also take advantage of the rescue personnel who are already involved in firefighting and complement the input data for positioning. The Autonomous Indoor & Outdoor Safety Tracking System (AIOSAT) is a multinational project founded through the Horizon 2020 program, with seven partners from Spain, Netherlands and Belgium. It is reaching the first year of progress (out of 3) and the overarching objective of AIOSAT system is to advance beyond the state of the art in tracking rescue workers by creating a high availability and high integrity team positioning and tracking system. On the system level approach, this goal is achieved by fusing the GNSS, EDAS/EGNOS, pedestrian dead reckoning and ultra-wide band ranging information, possibly augmented with map data. The system should be able to work both inside buildings and rural areas, which are the test cases defined by the final users involved in the consortium and the advisory board panel of the project [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
5. Map-Aided Software Enhancement for Autonomous GNSS Complementary Positioning System for Railway.
- Author
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de Miguel, Gorka, Goya, Jon, Fernandez, Nerea, Arrizabalaga, Saioa, Mendizabal, Jaizki, and Adin, Inigo
- Subjects
GLOBAL Positioning System ,INERTIAL navigation systems ,RAILROADS ,ARTIFICIAL satellites in navigation - Abstract
Independently on the business case addressed, one of the main drawbacks of the railway use cases that need continuous Global Navigation Satellite Systems data is the lack of availability for the 100% of the time of the journey. Additionally, the integrity assessment of the position estimation given is also mandatory for safety critical applications. Thus, tunnels and multipath effects are one of the most challenging situations for the continuous positioning systems. In this context, an autonomous on-board Complementary Positioning System has been proposed to overcome the limitation of Global Navigation Satellite System based positioning systems. This paper proposes a positioning enhancement solution by means of fusing data from the satellite navigation system and inertial measurement units. That hybrid solution provides higher availability and accuracy to the positioning specially on known blocked scenarios, such as tunnels, or urban canyons, by means of a novel environment aware map aided software technique named Known Blocked Scenarios algorithm… This paper describes the Complementary Positioning System and the field test carried out in a challenging environment to validate the enhancement proposed by the authors, which demonstrate the benefits that this system has in known harsh environments for railways. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
6. Methodology and Key Performance Indicators (KPIs) for Railway On-Board Positioning Systems.
- Author
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Goya, Jon, De Miguel, Gorka, Arrizabalaga, Saioa, Zamora-Cadenas, Leticia, Adin, Inigo, and Mendizabal, Jaizki
- Abstract
The European Union (EU) is bolstering the railway sector with the aim of making it a direct competitor of the aviation sector. For that to occur, railway efficiency has to be improved by means of increasing capacity and reducing operational expenditure. Tracks are currently used below their maximum capacity. Given this fact and the EU’s goals for the railway sector, research on solutions for on-board positioning system based on global navigation satellite systems (GNSS) have arisen in recent years. By taking advantage of GNSS, safety critical positioning systems will be able to use the infrastructure more efficiently. However, GNSS based positioning systems still cannot fulfill current normative validation processes, mainly, due to the fact that GNSS based positioning performance evaluation is not compatible with the key performance indicators (KPIs) used to assess railway systems performance: reliability, availability, maintainability, and safety. This paper proposes a methodology and unified key performance indicators (KPIs). Additionally, it shows real examples to address this issue. It aims to fill the gap between the current railway standardization process and any on-board positioning system. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
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