Seat belt status monitoring system

Details Seat belt status monitoring system Seat belt status monitoring system

2006-02-21

2006-02-21

Lee, Benjamin C. (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S686400, C200S06158R, C280S801100, C180S286000, C024S633000

Reexamination Certificate

active

07002457

ABSTRACT:
A seat belt status monitoring system for use with one or more seat belts of an automotive vehicle. The system includes a status monitor incorporated into the seat belt buckle and has a receiver and operator signaling device located in the instrument panel. The status monitor utilizes a piezoelectric element to generate an electrical signal that is fed to a transmitter to generate a wireless signal from the buckle. A mechanical sensing member is used to activate the piezoelectric element to generate its electrical signal by imparting a mechanical force on the piezoelectric during insertion and removal of the seat belt tongue from the buckle. A microswitch in the buckle is used by the transmitter to determine whether the seat belt is latched or unlatched, and this information is conveyed by the transmitted wireless signal. The wireless signal uniquely identifies the particular seat belt buckle from which it is transmitted so that the receiver can keep track of the status of each of a number of different seat belt buckles within the vehicle.

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