Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2003-05-07
2008-09-02
Frejd, Russell (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S018000, C702S060000
Reexamination Certificate
active
07421378
ABSTRACT:
In a diagnosing method for an apparatus having movable mechanical components and a diagnosing device, an instantaneous total supply of power is measured and recorded as a function of time. A dynamic physical power-flow model of the driven apparatus is created. The model is described by means of parameters directly connected to mechanical and/or electromagnetic quantities of the individual components of the apparatus. The parameters are adapted to fit the power consumption calculated from the model to the recorded power signatures. A diagnosis is performed based on the adapted parameters. The diagnosing device has a power meter and a processor, the processor being arranged for: obtaining a power signal representing supplied power as a function of time; providing the dynamic power-flow model; and adapting values of model parameters of the dynamic physical power-flow model to fit signatures of said power signal and for diagnosing the apparatus.
REFERENCES:
patent: 3832534 (1974-08-01), Carlson et al.
patent: 4888996 (1989-12-01), Rak et al.
patent: 4965513 (1990-10-01), Haynes et al.
patent: 5594175 (1997-01-01), Lyon et al.
patent: 5748469 (1998-05-01), Pyötsiä
patent: 5754450 (1998-05-01), Solomon et al.
patent: 5995910 (1999-11-01), Discenzo
patent: 6502458 (2003-01-01), Krüger et al.
patent: WO 96/30684 (1996-10-01), None
patent: WO 99/05501 (1999-02-01), None
Somayajula et al., S. Analog Fault Diagnosis Based on Ramping Power Supply Current Signature Clusters, IEEE Transactions on Circuits and Systems—Analog and Digital Signal Processing, vol. 43, No. 10, Oct. 1996, pp. 703-712.
Bonzagni, Esq. Mary R.
Frejd Russell
Holland & Bonzagni, P.C.
PSD Insight AB
LandOfFree
Power signature diagnosing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power signature diagnosing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power signature diagnosing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3978805