Mastering interactions with Internet of Things platforms through the IoTVar middleware

International audienceThe rising popularity of the Internet of Things (IoT) has led to a plethora of highly heterogeneous, geographically dispersed devices. In recent years, IoT platforms have been used to provide a variety of services to applications such as device discovery, context management, and data analysis. However, the lack of standardization currently means that each IoT platform comes with its own abstractions, APIs, and interactions. As a consequence, programming the interactions between an application and an IoT platform is often time consuming, error prone, and depends on the developers' level of knowledge about the IoT platform. To address these issues, we propose offering to application developers on the client side the possibility to declare variables that are automatically mapped to sensors and whose values are transparently updated with sensor observations. For this purpose, we introduce IoTVar, a middleware between IoT applications and platforms. In IoTVar, all the necessary interactions with IoT platforms are managed by proxies. This paper presents IoTVar integrated with the FIWARE platform, which is used for developing IoT Future Internet applications. We also report results of some experiments performed to evaluate IoTVar, showing IoTVar reduces the effort required to declare and manage IoT variables and its impact in terms of CPU, memory, and energy

Projet INCOME : INfrastructure de gestion de COntexte Multi-Echelle pour l'Internet des Objets

International audienceCet article donne un aperçu du projet de recherche INCOME financé par l'Agence Nationale de la Recherche française en décrivant la fiche d'identité du projet, ses principaux enjeux scientifiques ainsi que les premiers résultats obtenus

Gestion de contexte multi-échelle pour l'Internet des objets

Cet article présente une architecture logicielle de gestion de contexte multi-échelle pour l'Internet des objets. Nous présentons d'abord quelques défis spécifiques auxquels est confrontée cette nouvelle génération d'intergiciels, tels que la communication répartie en modes push et pull, la sensibilité multi-échelle, et la réponse à des exigences et des garanties de qualité de l'information de contexte et de respect de la vie privée. Nous donnons ensuite la vision du projet INCOME pour répondre à ces défis en fournissant une infrastructure répartie de gestion de contexte et en assurant son déploiement de manière autonomique

Middleware for Internet distribution in the context of cloud computing and the Internet of Things

International audienceTo address the challenges for middleware emanating from the advent of the Internet of Things and cloud com- puting, new research is required, particularly with respect to the types of middleware needed to support key domains, such as cyber-physical systems, smart cities, the smart grid, big data analytics, digital earth, and so on. This special issue addresses these challenges by (i) considering the state- of-the-art of middleware in these areas, (ii) documenting emerging ideas and concepts that help meet key challenges, (iii) increasing awareness of a grand challenge for dis- tributed system, and (iv) galvanizing the community of researchers around this challeng

La traçabilité dans les chaînes logistiques en utilisant l'IoT et la Blockchain

International audienceThe emergence of the Internet of Things (IoT) and Blockchain will contribute to the evolution of information systems dedicated to traceability management in supply chains. In this context, we propose a new architecture for these traceability systems based on the use of IoT and Blockchain in order to offer a better visibility of traceability informations, and to add more transparency and reliability in these informations.L’émergence de l’internet des objets (IoT) et de la Blockchain contribuera à l’évolution des systèmes d’information dédiée à la gestion de la traçabilité dans les chaînes logistiques. Dans ce cadre nous proposons une architecture pour ces systèmes de traçabilité basée sur l’utilisation de l’IoT et de la Blockchain, afin d’offrir une meilleure visibilité des informations de traçabilité, et de rajouter plus de transparence et de fiabilité dans ces informations