Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2011-05-03
2011-05-03
Raymond, Edward (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
C714S025000
Reexamination Certificate
active
07937247
ABSTRACT:
Methods for improving the accuracy of characterizing unmonitored paths or virtual meters in a utility system. The hierarchical arrangement of IEDs in the utility system is determined. Measured quantities of a characteristic of the utility being monitored are received and error-adjusted using statistical or absolute methods. The statistical method accounts for the mean and standard deviation associated with error measurements of the subject IED, and the absolute method uses the absolute value of the error measurement, expressed as a percentage, to produce ranges of measured quantities within an error tolerance. The differences between the error-adjusted quantities are analyzed to determine whether an unmonitored path exists, and if so, whether the virtual meter is consuming or supplying the utility. The order in which IEDs are read is determined so that a parent and its children are read in sequence to increase synchronicity of the received data and the virtual meter evaluation.
REFERENCES:
patent: 7272518 (2007-09-01), Bickel et al.
patent: 2010/0030521 (2010-02-01), Akhrarov et al.
patent: 1217381 (2002-06-01), None
patent: WO 2009/061291 (2009-05-01), None
Written Opinion corresponding to co-pending International Patent Application Serial No. PCT/US2009/053174, European Patent Office; dated Apr. 8, 2010; (4 pages).
International Search Report corresponding to co-pending International Patent Application Serial No. PCT/US2009/053174, European Patent Office; dated Apr. 8, 2010; (3 pages).
Bickel Jon A.
Carter Ronald W.
Hasan Amjad
Raymond Edward
Square D Company
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