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Seat belt warning system

Seat belt warning system is developed to cut off the car’s ignition circuit to avoid the engine from start or operation while the operators are not tiring their seat belt both the ignition and starter circuit can be isolated. Common operation starts again as the operator fasters.

Seat Belt Warning Light System

Design circuit for warning light


        If “I” is high: ignition is on

        If SB is high: seat belt fastened

        If SS is high: seatbelt sensor is on

Expression of  Boolean algebra equation

Ignition is on, and seat belt not fastened, and

           Seatbelt sensor is on 


change equation to circuit                    


Take in action - Boolean algebra allows simple capture as equation and conversion to circuit.

Posted Date: 2/11/2012 11:58:25 PM | Location : United States

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