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Methods and systems for automated real time continuous waveform electrical property monitoring and status reporting

  • US 9,691,191 B1
  • Filed: 02/18/2011
  • Issued: 06/27/2017
  • Est. Priority Date: 02/18/2011
  • Status: Active Grant
First Claim
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1. A method for performing an integrated waveform analysis without the use of an external device, said method comprising:

  • receiving, by a quality waveform analysis module including a processing device, at least one electrical waveform associated with an electrical signal communicated from a first line replaceable unit (LRU) to a second LRU across a communications bus;

    extracting, by the quality waveform analysis module, a plurality of real time parametric measurements of waveform voltage samples relative to time of the at least one electrical waveform, wherein the real time parametric measurements are associated with a signal quality of the electrical signal and comprise one or more of the following waveform signal characteristics;

    frequency, peak voltage, rise times, and fall times;

    comparing, by the quality waveform analysis module, the extracted real time parametric measurements to expected waveform parametric measurements for the communications bus proximate at least one of system interfaces, hardware components, and interconnections associated with the communications bus;

    processing, by the quality waveform analysis module, differences between the extracted real time parametric measurements and the expected waveform parametric measurements to determine whether a failure mode exists on the communications bus;

    when the failure mode is determined to exist, identifying, by the quality waveform analysis module, whether a system interconnection degradation or a hardware failure caused the failure mode based on the processed differences between the real time and expected waveform parametric measurements; and

    displaying, via the quality waveform analysis module, a signal quality status indicator based on at least one of said processing and said identifying, wherein the signal quality status indicator represents the signal quality for the electrical signal and includes one or more of the following indications;

    the extracted parametric measurements of waveform voltage samples are consistent with the expected waveform parametric measurements and no failure mode has been detected,the failure mode exists and the parametric measurements of the waveform voltage samples are indicative of a system interconnection degradation between at least one of the first and second LRUs and the communications bus being the cause of the failure mode, andthe failure mode exists and the parametric measurements of waveform voltage samples are indicative of a hardware failure of at least one of the first and second LRUs being the cause of the failure mode.

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