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03 mars 2021 | Système de contrôle de covoiturage

Egis illustration detection nb
Egis

Pour favoriser la pratique du covoiturage, des voies lui sont dédiées à l’entrée des parkings, aux péages et sur certaines autoroutes. Des dispositifs financièrement incitatifs commencent également à voir le jour, mais ils nécessitent une vérification du nombre de passagers.

EGIS, le CEA List et R&D Vision, qui ont associé leurs compétences dès 2018, ont conçu un système de comptage associant la détection optique et l’intelligence artificielle (IA) et applicable à divers contextes. Porté par EGIS, le projet bénéficie de l’expertise du CEA List en algorithmie et IA et de celle de R&D Vision en développement de systèmes embarqués innovants.

 

Après une première phase de validation en début d’année - supervisée par le Cerema, qui fournit assistance à Autoroutes et Tunnel du Mont Blanc (ATMB) pour l’ensemble de l’opération - les trois partenaires ont lancé l’expérimentation en conditions réelles. Le site choisi est celui de l’autoroute A411, au passage de la frontière franco-suisse, site exploité par ATMB. Le système, en expérimentation depuis plusieurs mois, a été conçu pour être robuste aux variations de luminosité et aux conditions météorologiques (jour / nuit, soleil / pluie, …) et sur tout type de véhicules légers (vitres teintées ou non).

Rendez-vous au second semestre 2021 pour les résultats de l’expérimentation !

Egis 500
R&D Vision

February 25, 2021 | Europe a global contender in high-performance computing

Europe Calcul haute performance
Florence Pillet

A European research consortium has been set up to temper the United States' domination of the global high-performance computing hardware market. CEA List, a CEA Tech institute, is playing a key role with its processor architecture modeling tool.

The overwhelming majority of the microprocessors found in high-performance computers worldwide are manufactured in the United States. Yet high-performance computing (HPC) is critical for addressing today's increasingly numerous and complex strategic challenges—and not only in the United States. The European Processor Initiative (EPI) was set up to help Europe achieve sovereignty in this strategic area and bring manufacturing of the core components of HPC systems home to Europe.

CEA List, a member of the Carnot Network, has been putting its virtual prototyping skills to good use to develop tools like the SESAM simulator. This is the EPI project's go-to tool for modeling the European HPC processor. Virtual prototyping is an essential step in the design and validation of chip architectures. It can significantly shorten development cycles through the use of rapid architecture exploration and design optimization techniques. SESAM offers a wide variety of processor and peripheral models. It can also model a complex memory hierarchy and estimate its performance.

EPI will help reposition Europe by lessening dependence on US manufacturers, and, more importantly, guaranteeing technological sovereignty on the high-performance computing market, a major economic growth driver. HPC has long been used in research, weather forecasting, oil and gas exploration, defense, chemical, finance, and other industries. More recently, it has become a vital tool for supporting the deployment of artificial intelligence, connected mobility, smart cities, bioengineering, cybersecurity, personalized medicine, and much more.

Read article at http://www.cea-tech.fr/

 

 

24 février 2021 | Les isotopes identifiés en un clin d’œil

identification isotopes
AdobeStock Rost9

Difficile d'y voir clair dans un mélange d'isotopes. Pour y remédier, le CEA List, institut de CEA Tech, vient de mettre au point un logiciel d'analyse automatique des spectres gamma. Simple d'utilisation, il garantit des résultats fiables et complets.

Déterminer rapidement et efficacement la composition d’un échantillon par spectrométrie gamma peut être utile dans plusieurs cas : lors d'un incident nucléaire pour prendre les bonnes décisions le plus vite possible par exemple, mais aussi plus communément pour être en mesure de connaître précisément la composition des fûts de déchets radioactifs afin d’identifier le traitement le plus approprié.

Se fondant sur des années d’expertise, les chercheurs de l'institut Carnot CEA List ont développé le logiciel MAGIX, qui permet d’analyser automatiquement des spectres gamma très complexes obtenus avec des détecteurs germanium de bonne résolution (nombreux pics très fins), mais également avec des détecteurs moins performants en termes de résolution énergétique. Pour cela, cet outil sélectionne les pics les plus représentatifs du spectre pour les comparer à ceux présents dans une base de données recensant plusieurs centaines d’isotopes. Non seulement il permet de déterminer la nature des isotopes présents avec une grande fiabilité, mais il permet également de les quantifier et de calculer leur activité.

Par rapport au standard industriel représenté par GENIE 2000, aucune pré-sélection des isotopes et des raies n’est nécessaire de la part de l’utilisateur : tout est automatique ! Très simple d’utilisation, le logiciel calcule en outre automatiquement la courbe d’efficacité du détecteur lorsque celle-ci n’est pas connue de l’utilisateur.

MAGIX sera dans un premier temps utilisé en interne CEA, avant de probablement gagner les rangs des logiciels de spectrométrie gamma développés par le List et commercialisés tels que IGA ou sIGAle.

Retrouvez cette actualité sur http://www.cea-tech.fr/

 

 

February 04, 2021 | Making data exchanges more secure

Sécuriser davantages les échanges de données
AdobeStock_siarhei

​How can we be sure that Internet-based data exchanges using blockchain technology are reliable? Researchers from CEA List, a CEA Tech institute, studied how user behavior could be used to make transactions more secure.

A blockchain is a distributed data ledger. Each blockchain participant stores a local copy of the ledger. Various protocols, some more energy-efficient than others, are used to ensure the consistency of the ledger. The instant consensus protocol, studied for decades, has the advantage of being energy efficient. Participants must agree to add a transaction, for example, to the ledger before the protocol can be run. Understanding and anticipating the potential behavior of participants is crucial for blockchains to work effectively.

The instant consensus protocol can be compromised when the number of malicious participants—those who never respond or voluntarily send inconsistent information—exceeds a certain threshold. However, there are also those who are not malicious but are instead motivated purely to maximize their gains. Typically, they never check the validity of the blocks submitted to them.

Researchers at CEA List, a member of the Carnot Network, based its work on the theory of non-cooperative games. This is a mathematical tool that analyzes the decision-making processes of individuals in a group. The researchers showed that new rules are required to guarantee the successful completion and integrity of a transaction. Simply "rewarding" users who do check blocks is not enough; there must also be a significant cost associated with adding an invalid block, and this must apply to the entire community.

The research is still in progress, analyzing other existing incentive mechanisms and developing new ones. One approach is currently being rolled out to Connecting Food, a startup working with CEA List to develop a solution that provides real-time monitoring of a food product's compliance with its specifications at every stage of manufacturing and distribution, from farm to shelf. Incentives will encourage those involved in the process (producers, processors, etc.) to enter their certificates into the blockchain, providing consumers with greater transparency.

Read article at http://www.cea-tech.fr/

 

 

January 26, 2021 | Safely observing a nuclear reactor

montage reacteur numerique 250Because it can simulate all core operating conditions, nothing beats using a "digital twin" for observing a nuclear reactor in complete safety. The goal of the Digital Reactor project—in which CEA List, a CEA Tech institute, is playing a key role—is to develop exactly this type of simulator to ensure the French nuclear industry remains safe, attractive, innovative, and competitive.

It is entirely possible to observe a nuclear reactor during operation without taking the slightest risk. A "digital twin" provides engineers and operators with an integrated environment for simulating complex physical and system-level phenomena.

The four-year Digital Reactor project was launched jointly in 2020 by EDF, Framatome, the CEA, and six other engineering and nuclear-industry firms. The aim of the project—part of the French government's multi-year strategy for its nuclear industry—is to create a digital twin of the critical components used in a nuclear reactor's design, operation, and decommissioning phases. This shared platform's operator training simulator should improve the operational efficiency of players in the nuclear industry. Digital simulation could also be utilized by French companies to develop and offer new services on export markets.

CEA List's software engineering and critical systems know-how and tools will support the project in:

  • Modeling the various concepts and activities to promote discussion
  • Validating the operating requirements and simulation codes
  • Ensuring that access to the platform and its data are secure

This ambitious project paves the way for large-scale digital transformation in the French nuclear industry.

Read article at http://www.cea-tech.fr/