DRIVER DROWSINESS DETECTION

摘要

Data is collected related to a yaw-rate of a vehicle during a period of time. Based in part on the yaw-rate data, an actual trajectory and an ideal trajectory for the vehicle in the period of time are computed. A deviation of a yaw-rate associated with the actual trajectory is determined from a yaw-rate associated with the ideal trajectory. A variance of the deviation is calculated. An indication is provided of a dangerous driving condition if the variance exceeds a predetermined variance threshold.

主权项

1. A system, comprising a computer in a vehicle, the computer comprising a processor and a memory, wherein the computer is configured to:
collect data related to a yaw-rate of the vehicle during a period of time; compute, based in part on the yaw-rate data, an actual trajectory and an ideal trajectory for the vehicle in the period of time; determine a deviation of a yaw-rate associated with the actual trajectory from a yaw-rate associated with the ideal trajectory; calculate a variance of the deviation; and provide an indication of a dangerous driving condition if the variance exceeds a predetermined variance threshold.