| 摘要 |
System and method for analyzing motion of occupants of the vehicle in which a wave-receiving system receives waves from spaces above seats of the vehicle in which the occupants would normally be situated and a processor coupled to the wave-receiving system determines movement of any occupants based on the received waves. The wave-receiving system may be arranged on a rear view mirror, in a headliner, roof, ceiling or windshield header, in an A-Pillar or B-Pillar, above a top surface of an instrument panel, and in connection with a steering wheel or an airbag module. The processor can be programmed to determine the location of the head, chest and/or torso of any occupants. If it determines the location of the head of any occupants, it could monitor the position thereof to determine whether the occupant is falling asleep or becoming incapacitated.
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