The light-sensing foot-activated technology brings smart tailgate systems into the era of virtual touch, making the opening and closing of a power tailgate simple and engaging. When the vehicle owner, carrying the car key (or Bluetooth Tag), approaches the rear of the vehicle, the system automatically detects their presence and projects a corresponding pattern onto the ground using optical projection technology. The owner only needs to lightly step on the projection, and once the module accurately detects the action and sends the command, the tailgate will automatically open while maintaining a safe distance for the user, creating a novel and interactive experience.