SYSTEM AND METHOD FOR DETECTING SEAT OCCUPANCY IN A VEHICLE

摘要

A system for detecting the seat occupancy in a vehicle includes a microwave transmitter ( 10 ) and a plurality of small-area reflectors ( 12 ) which are arranged in the vehicle. By activating or deactivating the different reflectors ( 12 ) during different time intervals, the reflectors ( 12 ) can be identified via the unequivocal assignment between the time intervals and the reflectors. This makes it possible to use narrow-band microwave radiation, since it is then not absolutely necessary to identify the reflectors ( 12 ) with the aid of different frequencies. It is also possible to arrange receivers in the seat ( 20 ) instead of reflectors ( 12 ).