SYSTEM AND METHOD FOR RECOGNITION OF SEAT OCCUPANCY IN A VEHICLE

A system, for recognition of seat occupancy in a vehicle, comprises a microwave transmitter ( 10 ), a microwave receiver ( 10 ) and preferably a reflector ( 12 ). If a person is located between said objects the microwave radiation is thus weakened. A back-scatter device can be used as reflector ( 12...

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Bibliographic Details
Main Authors KLAUS HOFBECK, BIRGIT ROSEL
Format Patent
LanguageEnglish
Published 15.06.2004
Edition7
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:A system, for recognition of seat occupancy in a vehicle, comprises a microwave transmitter ( 10 ), a microwave receiver ( 10 ) and preferably a reflector ( 12 ). If a person is located between said objects the microwave radiation is thus weakened. A back-scatter device can be used as reflector ( 12 ), such that radiation received by the receiver ( 10 ) can be unambiguously assigned to the reflector ( 12 ). In addition or alternatively a run-time measurement for the microwave radiation can be carried out and the above further processed with an analysis of the seat position. It is possible to use the refraction properties of the microwave radiation around the object in order to obtain further information about the seat position. The recognition of whether and optionally how a seat is occupied can preferably be used for the locking or activation of an airbag.
Bibliography:Application Number: AU20030288122