System for fatigue detection using a suite of physiological measurement devices
First Claim
1. A method for monitoring vehicle operator fatigue, the method comprising:
- receiving a plurality of different biometric data related to a vehicle operator from a plurality of biometric sensors during real time operation of a vehicle;
calculating a fatigue level for the vehicle operator by applying the received biometric data to a statistical model of fatigue, wherein the statistical model of fatigue outputs an indication of the calculated fatigue level for the vehicle operator, wherein the statistical model of fatigue is created by;
recording biometric data about the vehicle operator from the plurality of biometric sensors during a plurality of previous operations of the vehicle, wherein each of the plurality of previous operations corresponds to a respective fatigue level of a plurality of corresponding fatigue levels of the vehicle operator relative to a predefined numerical scale, each of the plurality of corresponding fatigue levels being at least one of;
known, assumed, and self-reported by the vehicle operator; and
performing statistical analysis on the recorded biometric data to determine the statistical model of fatigue by ascertaining which statistical model of fatigue results in a best fit of the recorded biometric data to the plurality of corresponding fatigue levels for the plurality of previous operations.
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Abstract
A system, method, and computer program product for detecting, in real time, a fatigue level of a vehicle operator. Multiple physiological indicators of an individual vehicle operator can be monitored at different instances when the operator'"'"'s level of fatigue is known and can be quantified. A statistical model of the vehicle operator'"'"'s fatigue can be developed from the data from the multiple instances. In future instances, the statistical model can be applied to real-time physiological data collected from the operator during operation of the vehicle to determine a fatigue level. A warning can be provided when the statistically-calculated fatigue level exceeds a threshold level.
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Citations
14 Claims
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1. A method for monitoring vehicle operator fatigue, the method comprising:
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receiving a plurality of different biometric data related to a vehicle operator from a plurality of biometric sensors during real time operation of a vehicle; calculating a fatigue level for the vehicle operator by applying the received biometric data to a statistical model of fatigue, wherein the statistical model of fatigue outputs an indication of the calculated fatigue level for the vehicle operator, wherein the statistical model of fatigue is created by; recording biometric data about the vehicle operator from the plurality of biometric sensors during a plurality of previous operations of the vehicle, wherein each of the plurality of previous operations corresponds to a respective fatigue level of a plurality of corresponding fatigue levels of the vehicle operator relative to a predefined numerical scale, each of the plurality of corresponding fatigue levels being at least one of;
known, assumed, and self-reported by the vehicle operator; andperforming statistical analysis on the recorded biometric data to determine the statistical model of fatigue by ascertaining which statistical model of fatigue results in a best fit of the recorded biometric data to the plurality of corresponding fatigue levels for the plurality of previous operations. - View Dependent Claims (2, 3, 4, 5)
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6. A system for monitoring fatigue of a vehicle operator in real time, the system comprising:
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a plurality of biometric sensors arranged relative to controls for a vehicle that are operated by a vehicle operator, wherein the plurality of biometric sensors detect a plurality of different biometric data for the vehicle operator in real time; memory on board the vehicle, the memory storing executable code and a statistical model of fatigue for outputting an indication of a calculated fatigue level for the vehicle operator; and a processor which, when programmed by the executable code, applies the detected biometric data to the statistical model of fatigue to determine the calculated fatigue level for the vehicle operator, wherein the statistical model of fatigue is created by; recording biometric data about the vehicle operator during a plurality of previous operations of the vehicle, wherein each of the plurality of previous operations corresponds to a respective fatigue level of a plurality of corresponding fatigue levels of the vehicle operator relative to a predefined numerical scale, each of the plurality of corresponding fatigue levels being at least one of;
known, assumed, and self-reported by the vehicle operator; andperforming statistical analysis on the recorded biometric data to determine the statistical model of fatigue by ascertaining which statistical model of fatigue results in a best fit of the recorded biometric data to the plurality of corresponding fatigue levels for the plurality of previous operations. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A computer-program product for monitoring, in real time, vehicle operator fatigue, the computer program product comprising:
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a non-transitory computer-readable medium having computer-readable program code embodied therewith, the computer-readable program code configured to; receive a plurality of different biometric data related to a vehicle operator from a plurality of biometric sensors during real time operation of a vehicle; calculate a fatigue level for the vehicle operator by applying the received biometric data to a statistical model of fatigue, wherein the statistical model of fatigue outputs an indication of the calculated fatigue level for the vehicle operator, wherein the statistical model of fatigue is created by; recording biometric data about the vehicle operator from the plurality of biometric sensors during a plurality of previous operations of the vehicle, wherein each of the plurality of previous operations corresponds to a respective fatigue level of a plurality of corresponding fatigue levels of the vehicle operator relative to a predefined numerical scale, each of the plurality of corresponding fatigue levels being at least one of;
known, assumed, and self-reported by the vehicle operator; andperforming statistical analysis on the recorded biometric data to determine the statistical model of fatigue by ascertaining which statistical model of fatigue results in a best fit of the recorded biometric data to the plurality of corresponding fatigue levels for the plurality of previous operations. - View Dependent Claims (13, 14)
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Specification