METHOD AND APPARATUS FOR PREVENTING INEBRIATED PERSONS FROM OPERATING VEHICLES

摘要

A method and apparatus for preventing an inebriated person from operating a motor vehicle utilizing the flicker fusion frequency phenomenon to identify the inebriate and automatically prevent him from operating the vehicle. The individual is exposed to a light source which randomly changes between an illumination which appears flashing to the sober individual and an illumination which appears steady. Means are provided to prevent operation of the vehicle until a signal from the individual and a signal representing the light change are received contemporaneously by said means.