Patent ID: 11861916
Assignee: YAZAKI CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A system for monitoring driver alertness in a vehicle, the system comprising:
a camera to capture image data representing images of an eye of a driver of the vehicle while the driver is operating the vehicle;
an output device; and
a processing subsystem, coupled to the camera and the output device, to;
determine a plurality of thresholds including a plurality of time-based thresholds and a plurality of angle-based thresholds:
receive the image data from the camera;
compute an eye openness measure of the eye of the driver, based on the image data;
determine that the driver is in an unsafe state for driving based on the eye openness measure,
wherein to determine comprises to apply received or computed data to the plurality of thresholds;

generate an alert, while the driver is operating the vehicle, based on determining that the driver is in the unsafe state; and
cause the output device to output to the driver a signal indicative of the alert.