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Operator fatigue monitoring system

  • US 9,990,552 B2
  • Filed: 08/06/2015
  • Issued: 06/05/2018
  • Est. Priority Date: 09/21/2014
  • Status: Active Grant
First Claim
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1. A fatigue monitoring system for a machine, comprising:

  • an input device configured to generate a first signal indicative of an activity performed by a machine operator;

    a scanning device configured to generate a second signal indicative of a recognized characteristic of the machine operator;

    a warning device; and

    a controller in communication with the input device, the scanning device, and the warning device, the controller configured to;

    determine a time between generations of the first signal;

    make a comparison of the recognized characteristic with a threshold characteristic;

    selectively activate the warning device based on the time or the comparison;

    selectively log a first fault condition and communicate the first fault condition to a central control facility when a penalty device is activated, wherein the penalty device is activated based on the time and the comparison; and

    selectively log a second fault condition when the warning device is activated.

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