Distributed quantitative and qualitative fault diagnosis: railway junction case study

摘要: Abstract The paper develops a novel, comprehensive, reasoned approach to fault diagnosis in class of reciprocating, electro-mechanical equipment referred as single throw mechanical (STME). STMEs are widely used many industrial applications—examples which include automatic doors, presses and barrier systems. A formal definition the STME is initially presented. In this paper, an electro-pneumatic railway point machine within junction taken case study. proposed distributes process across geographical area interconnected using fieldbus data communication networks. This allows for detection isolation multiple assets close proximity one another at minimal cost. robust, straightforward, quantitative method based on abstract static models structured residuals preliminary suggested. capable being implemented asset level embedded processor. Fault carried out central distributed architecture; thus allowing full be economically. Details hybrid qualitative, neuro-fuzzy network suitable carrying discussed results collected from laboratory test-rig