310 research outputs found
Indoor UWB channel characterization and modeling based on an information theoretic approach and SAGE algorithm
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Analyse de sous espaces propres, basee sur des mesures a l’interieur des batiments, d’un canal radio ultra large bande
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Zigbee-based remote environmental monitoring for smart industrial mining
No full textWireless sensor networks (WSNs) consist of large number of small and low-cost devices equipped with sensing and communication facilities to monitor the environment. The collected data are transmitted to one or more base stations which can attach to other networks and/or databases. WSNs show particular promises in applications that involve complex, human-made systems such as underground mines, factory and industrial installation. In this paper, smart sensor network architecture for temperature and fire monitoring in underground mine is evaluated. Based on application requirements and site surveys, we develop a general architecture for this class of industrial applications. The architecture is based on multiple complementary wireless communications access networks between the environment and external environment, by using IEEE802.15/ZigBee, IEEE 802.11 and the Internet
Survey on localization methods for autonomous vehicles in smart cities
No full textIn the recent years, improvements in vehicular technology has been significant. Even after this improvement, right now it is only a fraction of what is being expected in the future. Vehicles in the future will be able to sense its environment and navigate the surroundings without any sort of human input. These vehicles are introduced as Connected and Autonomous Vehicles. These data can be used to develop different applications that can enhance the road safety, better manage the traffic flow and provide additional comfort services to the vehicle drivers. To do so, autonomous vehicles need to have accurate and real time localization estimation. Obviously, when talking about the vehicle position the Global positioning System (GPS) is the first possibility that comes to mind. However, the GPS system shows that it cannot keep the same evolution speed as the vehicles. This paper evaluates the state-of-the-art vehicle localization techniques and investigates their applicability on autonomous vehicles. Each of the localization techniques has cons and pros and cannot work alone
Temps et fonctionnement textuel chez Rachid Mimouni
Get PDFTime and Textual Functioning at Rachid Mimouni
The temporal dimension is a variable as important as space, and it is far from lacking in interest in the work of Rachid Mimouni. In fact, the issue of time considered as a structuring factor of the event representations which punctuate the story (1) is at the very heart of his romantic enterprise. To show how temporality exercises a locating and regulating function in the Mimounian text, we distinguish four temporal aspects to which the author focuses in his writing universe: romantic time, lived time, historical time and social time
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