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Evaluation of a diagnostic tool for use during system development and operations
Linköpings universitet, Institutionen för systemteknik.
Linköpings universitet, Institutionen för systemteknik.
2007 (Engelska)Självständigt arbete på grundnivå (yrkesexamen), 20 poäng / 30 hpStudentuppsats
Abstract [en]

Rodon is a diagnostic tool developed by Sörman. SAAB’s interest in Rodon regards the possibility to use the tool for development and operations of aircraft systems. The main goal of this thesis was to evaluate the capacity of Rodon and determine how SAAB can use the diagnostic tool during development and operations.

The tool uses model based diagnosis with artificial intelligence for fault isolation which is a powerful approach. If Rodon is introduced at SAAB, then detailed models of systems will be necessary to create, including the nominal behavior of the system and different faulty behaviors. In order to achieve high quality fault isolation, it is necessary to have complete and consistent models. To be able to use all applications that Rodon feature for a modeled system, preferable characteristics are that the model should be static, have discrete control signals, and have well defined system behavioral modes.

During development of a system Rodon can be used to improve and easy the work for failure analysis, guidance of sensor placements, evaluation of tests, generation of decision structures, and fault isolation. Since design of tests during development is a desirable application that Rodon does not have, two different methods are presented that utilizes Rodon to generate all possible limit checking tests.

In conclusion, Rodon can be very useful in several different aspects if introduced, but benefits gained by using Rodon will have to be compared to the labor cost of creating good models.

Ort, förlag, år, upplaga, sidor
Institutionen för systemteknik , 2007. , 91 s.
Nyckelord [en]
Model based diagnosis, artificial intelligence, diagnostic modelling tool, Rodon, failure analysis, generation of decision
Nationell ämneskategori
Systemvetenskap
Identifikatorer
URN: urn:nbn:se:liu:diva-9567ISRN: LITH-ISY-EX--07/3916--SEOAI: oai:DiVA.org:liu-9567DiVA: diva2:23988
Presentation
2007-03-21, Algoritmen, B-huset, Linköping, 10:00
Uppsök
teknik
Handledare
Examinatorer
Tillgänglig från: 2007-08-15 Skapad: 2007-08-15

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