Output details

Assisting Failure Modes and Effects Analysis of a System

<22>Patent 2010/142977 A1 'Assisting Failure Modes and Effects Analysis of a System' is one of two closely related patents covering IP invented by Snooke and sponsored by BAE Systems Ltd. Patent 2010/142977 A1 leverages symptom consistency and coverage presented in REF Output 1 to develop the first multiple visual matrix representation of the relationship between measurements, symptoms and potential effects. The novelty of the technique is the abstracted overview of the diagnosability of a system available to engineers via graphical clustering when the matrices are transformed into an approximate diagonal form and presented with a functional perspective. The second novel aspect is an interactive technique allowing system wide sensor cost benefit analysis to be investigated at an early design stage. The work has been successfully applied to electrical systems from Sumitomo Electrical Wiring Systems Ltd, and an inflight refueling system from Flight Refueling Ltd. It has also been used by the £32m ASTRAEA (http://astraea.aero/) project to supply analyse symptoms for a Bayesian network based on-board diagnosis technology demonstrator. Further, the IP has been used by BAE SYSTEMS Advanced Technology Centre for their Centre for Defense Enterprise work. The aforementioned capabilities are enabled by the underlying qualitative simulation based diagnosis generation protected by a second patent WO 2012/146908 A1 'Diagnostic Systems', also invented by Snooke (and which is not returned).