This is one of the latest technologies to start appearing in cars. BMW, Subaru and other automakers have installed cameras and sensors inside vehicles that use facial recognition technology to identify signs of driver distraction or fatigue. Some can measure head and eye movements to make sure your eyes are up and on the road ahead. The car will then notify you to pay more attention if necessary.
For cars with advanced cruise control systems, there are sensors to make sure your hands are still on the steering wheel and cameras watching your face. Some systems will put the control back in your hands if you start to look down at your phone or don’t keep your hands on the wheel.
A slightly older variation of this tech are the drowsiness meters found on vehicles from Honda, Mercedes-Benz and Volvo. These systems use steering inputs to determine whether a driver is getting sleepy. Notifications often take the form of a coffee cup in the in-dash digital display to suggest the driver stop for a break. These systems won’t steer the car or lock out controls, but they can serve as a reminder to pay more attention. More advanced systems can link to a car’s navigation and suggest rest stops along the route.