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Impaired transportation vehicle operator system

  • US 5,691,693 A
  • Filed: 09/28/1995
  • Issued: 11/25/1997
  • Est. Priority Date: 09/28/1995
  • Status: Expired due to Term
First Claim
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1. Impaired operator detection and warning apparatus, for detecting significant impairment of the operating ability of a transportation vehicle operator, by measurement and analysis of the motion of said operator'"'"'s head, and for warning of said impairment, comprising:

  • (a) Sensing means, for sensing the position of said operator'"'"'s head, and for producing electrical output signals dependent upon said position of said operator'"'"'s head;

    (b) Signal processing, analysis, and alarm activation means, connected to said sensing means, for achieving any needed amplification of said output signals, for any height of said operator within an expected ranges of heights for said operator, and for determining the time profile of the motion of said operator'"'"'s head by analysis of said output signals, and for comparing said time profile of said motion of said operator'"'"'s head, with reference profiles characteristic of normal and impaired operator head motion, and for activation of an alarm means, upon a determination, based upon said comparison of said profiles, that said operator is significantly impaired in operating ability; and

    (c) said alarm means, connected to said signal processing, analysis and alarm activation means, for alerting said operator to said determination that said operator is significantly impaired.

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