Title
WHODID: Web-Based Interface for Human-Assisted Factory Operations in Fault Detection, Identification and Diagnosis.
Abstract
We present WHODID: a turnkey intuitive web-based interface for fault detection, identification and diagnosis in production units. Fault detection and identification is an extremely useful feature and is becoming a necessity in modern production units. Moreover, the large deployment of sensors within the stations of a production line has enabled the close monitoring of products being manufactured. In this context, there is a high demand for computer intelligence able to detect and isolate faults inside production lines, and to additionally provide a diagnosis for maintenance on the identified faulty production device, with the purpose of preventing subsequent faults caused by the diagnosed faulty device behavior. We thus introduce a system which has fault detection, isolation, and identification features, for retrospective and on-the-fly monitoring and maintenance of complex dynamical production processes. It provides real-time answers to the questions: "is there a fault?", "where did it happen?", "for what reason?". The method is based on a posteriori analysis of decision sequences in XGBoost tree models, using recurrent neural networks sequential models of tree paths. The particularity of the presented system is that it is robust to missing or faulty sensor measurements, it does not require any modeling of the underlying, possibly exogenous manufacturing process, and provides fault diagnosis along with confidence level in plain English formulations. The latter can be used as maintenance directions by a human operator in charge of production monitoring and control.
Year
DOI
Venue
2017
10.1007/978-3-319-71273-4_47
Lecture Notes in Artificial Intelligence
Keywords
Field
DocType
Production units,Fault detection and identification Maintenance operator friendly,Tree ensemble,Gradient boosting LSTM-RNN networks
Software deployment,Computational intelligence,Fault detection and isolation,Computer science,A priori and a posteriori,Recurrent neural network,Turnkey,Real-time computing,Production line,Gradient boosting
Conference
Volume
ISSN
Citations 
10536
0302-9743
0
PageRank 
References 
Authors
0.34
5
2
Name
Order
Citations
PageRank
Pierre Blanchart1174.50
Cédric Gouy-Pailler26210.69