Vigilance peaked cap for making every car driver vigilant and keeping them awake causes a ball to slide and switch on an electrical connection through an electrically operated bar to trigger a waking signal lasting for five seconds

摘要

A metal ball moves in all directions in a vigilance device if the head falls downwards, e.g. through tiredness or falling to sleep. The ball slides and switches on an electrical connection through an electrically operated bar. A waking signal lasts for five seconds. A control screw adjusts the ball's function and relies on the angle of tilt required by using an elastic rubber element.