A message passing algorithm for automatic synthesis of probabilistic fault detectors from building automation ontologies

Model-based fault diagnosis has been indicated as a fundamental method in enabling optimal maintenance of buildings, thus leading to important energy savings. However, accurate models of buildings and their technical equipment are seldom available, and this lack of knowledge applies even more to descriptions of modeling and measurement uncertainties, which are needed for developing robust fault detection thresholds with given performances in terms of False Alarm Rates. In the present paper we propose to overcome both limitations, by introducing: 1) a methodology for the automatic synthesis of a global model of a building and its equipment, leveraging a purposely built ontology-based Building Information Model; and 2) a novel message passing algorithm called MP-BUP for automatically propagating the effects of uncertainties in interconnected bilinear systems and derive robust probabilistic thresholds.Team Jan-Willem van WingerdenTeam DeSchutte

Synlight - The World's Largest Artificial Sun

Der weltgrößte Sonnensimulator Synlight, der 2017 am DLR-Standort in Betrieb gehen wird, wurde vorgestellt. Speziell die geplanten Leistungsdaten und Nutzerportfolio wurde erläutert

Wasserbasierte Metallkomplex-Katalysatoren. Teilprojekt: Selektive Uebergangsmetall-katalysierte C-C-Verknuepfungen in Wasser Schlussbericht

Available from TIB Hannover: DtF QN1(53,18) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman