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Auflistung nach Autor:in "Fuhrmann, Thomas"

1 - 5 von 5
  • Konferenzbeitrag
    Bluetooth-Artefakte zur Interaktion mit intelligenten Umgebungen
    (Mensch & Computer 2003: Interaktion in Bewegung, 2003) Klein, Markus; Harbaum, Till; Fuhrmann, Thomas
    Von Menschen gefertigte Alltagsgegenstände, Artefakte, können dazu dienen, in die aus einer Vielzahl kleiner, eingebetteter Systeme geschaffene so genannte intelligente Umgebung einzugreifen. Sie müssen dazu sowohl mit entsprechenden Sensoren als auch einer geeigneten drahtlosen Kommunikationstechnik ausgerüstet werden. Dieser Beitrag beschreibt den BlueWand, ein stiftähnliches Eingabegerät, das seine Lage und Bewegung im Raum erkennt und diese Daten mittels Bluetooth an andere Bluetooth-Geräte in seiner Umgebung übermittelt. So können verschiedene Geräte in einer intelligenter Umgebung durch einfaches Zeigen oder durch Gesten gesteuert werden. Dieser Beitrag beschreibt auch, wie die Technik des Blue- Wand, bei verschiedenen anderen Artefakten angewandt werden kann.
  • Konferenzbeitrag
    Distributed job scheduling in a peer-to-peer video recording system
    (Informatik 2004, Informatik verbindet, Band 2, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Cramer, Curt; Kutzner, Kendy; Fuhrmann, Thomas
    Since the advent of Gnutella, Peer-to-Peer (P2P) protocols have matured towards a fundamental design element for large-scale, self-organising distributed systems. Many research efforts have been invested to improve various aspects of P2P systems, like their performance, scalability, and so on. However, little experience has been gathered from the actual deployment of such P2P systems apart from the typical file sharing applications. To bridge this gap and to gain more experience in making the transition from theory to practice, we started building advanced P2P applications whose explicit goal is “to be deployed in the wild”. In this paper, we describe a fully decentralised P2P video recording system. Every node in the system is a networked computer (desktop PC or set-top box) capable of receiving and recording DVB-S, i.e. digital satellite TV. Like a normal video recorder, users can program their machines to record certain programmes. With our system, they will be able to schedule multiple recordings in parallel. It is the task of the system to assign the recordings to different machines in the network. Moreover, users can “record broadcasts in the past”, i.e. the system serves as a short-term archival storage for TV programmes, too. Since we want the system to be evaluated by a large number of users, we decided to build it as a plug-in for the popular and widely deployed Linux Video Disk Recorder (VDR) software (http://www.cadsoft.de/vdr/). VDR already offers the basic recording functionality, thus we can focus on the aspect of cooperatively scheduling recordings. No definite results can be discussed yet, as the work presented here is in progress. Nevertheless, we are already able to point out some important design issues and open research questions.
  • Konferenzbeitrag
    A self-organizing job scheduling algorithm for a distributed VDR
    (Kommunikation in Verteilten Systemen (KiVS), 2005) Kutzner, Kendy; Cramer, Curt; Fuhrmann, Thomas
  • Konferenzbeitrag
    Software engineering for ambient intelligence systems
    (INFORMATIK 2006 – Informatik für Menschen – Band 2, Beiträge der 36. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2006) Fuhrmann, Thomas
    AmbiComp is a new research project that will invest about 30 person years into the development of a new and simple software engineering approach for mobile embedded interactive systems. In order to achieve its ambitious goals, it will combine research from different fields such as mobile peer-to-peer networks and operating systems. As a result, developing applications across multiple embedded devices shall be greatly facilitated.
  • Konferenzbeitrag
    Workshop – Algorithms and protocols for efficient peer-to-peer applications
    (Informatik 2004, Informatik verbindet, Band 2, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Fuhrmann, Thomas; Meer, Hermann de