Elektrotechnik Und Informationstechnik 

About: Elektrotechnik Und Informationstechnik is an academic journal published by Springer Science+Business Media. The journal publishes majorly in the area(s): Computer science & Engineering. It has an ISSN identifier of 0932-383X. Over the lifetime, 2650 publications have been published receiving 9722 citations. The journal is also known as: E&I (Print) & E&I (Internet).

Networked UAVs as aerial sensor network for disaster management applications

Abstract: Advances in control engineering and material science made it possible to develop small-scale unmanned aerial vehicles (UAVs) equipped with cameras and sensors. These UAVs enable us to obtain a bird's eye view of the environment. Having access to an aerial view over large areas is helpful in disaster situations, where often only incomplete and inconsistent information is available to the rescue team. In such situations, airborne cameras and sensors are valuable sources of information helping us to build an "overview" of the environment and to assess the current situation. This paper reports on our ongoing research on deploying small-scale, battery-powered and wirelessly connected UAVs carrying cameras for disaster management applications. In this "aerial sensor network" several UAVs fly in formations and cooperate to achieve a certain mission. The ultimate goal is to have an aerial imaging system in which UAVs build a flight formation, fly over a disaster area such as wood fire or a large traffic accident, and deliver high-quality sensor data such as images or videos. These images and videos are communicated to the ground, fused, analyzed in real-time, and finally delivered to the user. In this paper we introduce our aerial sensor network and its application in disaster situations. We discuss challenges of such aerial sensor networks and focus on the optimal placement of sensors. We formulate the coverage problem as integer linear program (ILP) and present first evaluation results.

Révélation de ressources spécifiques et coordination située

Abstract: Plus de dix ans apres avoir propose la notion de « specificite des facteurs » et suggere de distinguer une ressource, qui existe a l’etat latent ou virtuel, et le processus de sa valorisation ou revelation sous forme d’un actif, nous cherchons ici a actualiser nos definitions et a montrer en quoi la notion de ressource/actif specifique est plus que jamais un outil methodologique fecond pour apprehender aujourd’hui les enjeux de la mondialisation et de la territorialisation des processus productifs. Dans une premiere partie de ce papier, nous repartons de notre proposition de grille d’analyse de ce que nous avons designe comme les « facteurs de concurrence spatiale », en apportant un certain nombre de precisions sur les notions de ressource et de specificite. Notre approche est egalement situee dans un ensemble de travaux dont le denominateur commun est de raisonner (parfois implicitement) en termes de creation de ressources et de production d’externalites.Dans une seconde partie, nous proposons de tirer un certain nombre de consequences d’une approche resolument dynamique de processus de coordination situes dans le temps mais aussi dans l’espace. Nous tentons de montrer que ces processus peuvent etre synonymes de construction ou de revelation du territoire et qu’ils peuvent etre utilement eclaires par les notions de « ressource specifique » mais aussi de « patrimoine ».Nous caracterisons, en particulier, le « patrimoine » comme constitue par la memoire de situations de coordination anterieures reussies, par la confiance entre les acteurs qui en est le resultat, ainsi que par des ressources cognitives specifiques virtuellement complementaires (susceptibles d’etre combinees pour resoudre des problemes productifs a venir).

Standards for vehicular communication—from IEEE 802.11p to 5G

Abstract: Standardization for wireless vehicular communication ensures, as in other domains, interoperability, supports regulations and legislation, and creates larger markets. For the initial deployment of vehicular communication, consistent sets of standards have been created, commonly named C-ITS in Europe and DSRC in the U.S., both relying on the WiFi standard IEEE 802.11. These initial standard sets specify vehicle-to-vehicle and vehicle-to-infrastructure communication and enable applications primarily for driver information and warnings. The article provides an overview of the key C-ITS and DSRC protocols from a standardization perspective. The article analyzes automated driving as the potential new application domain for vehicular communication, discusses its requirements on communication, and derives potential directions for future releases of the vehicular communication standards.