Abstract: A baffle assembly includes a frame, a protruding piece and a baffle structure. The frame is configured to accommodate some expansion cards. The frame includes a first surface and a second surface adjacent to the first surface. The first surface has an opening configured to allow the expansion cards to enter into the frame. The protruding piece protrudes from the first surface. The baffle structure includes a first blocking plate and a second blocking plate. The first blocking plate is configured to abut against the first surface and at least partially cover the opening. The first blocking plate has a through hole. The through hole extends along a first direction. The protruding piece at least partially penetrates through the through hole. The second blocking plate is connected with the first blocking plate along the first direction and is configured to abut against the second surface.

Abstract: A vehicle safety method includes steps: monitoring a face state of a driver and determining whether the face state satisfies a tired state or not; sensing a physiological state of the driver and determining whether the physiological state satisfies a conscious state or not; sending a warning query when the face state satisfies the fired state and the physiological state satisfies the conscious state; determining whether a response corresponding to the warning query is received or not; and activating a vehicle safety mechanism if the response corresponding to the warning query is not received.