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Impaired operator detection and warning system employing analysis of operator control actions

  • US 5,798,695 A
  • Filed: 04/02/1997
  • Issued: 08/25/1998
  • Est. Priority Date: 04/02/1997
  • Status: Expired due to Term
First Claim
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1. An impaired operator detection system comprising:

  • a sensing device that provides a measurement of the operator'"'"'s control actions and that generates a signal indicative of said control actions; and

    an analyzer comprising a processor which includes,a Fast Fourier Transform processor portion capable of performing a Fast Fourier Transform on said signal and converting the transformed signal into a Power Spectrum Array (PSA) comprising a numeric description of the waveform energy present in each of a chosen series of frequency bands, anda comparison processor portion capable of comparing the PSA derived from said measurement of the operator'"'"'s control actions to at least one empirical PSA created from empirical data indicative of an unimpaired operator.

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