Initially only the driver seat was equipped with a seat belt reminder, then the passenger seat followed, and now there are vehicles that have seat belt reminders for all seats. The Seat Belt Reminder is a kind of sensor, which detects occupants in passenger and rear seats. Seat Belt Reminder is a kind of membrane-type contact sensor, which detects occupants in passenger and rear seats. A seat belt reminder system in the vehicle triggers a warning light and/or an audible chime, reminding unbuckled seat occupants to fasten their seat belts.
With this device, an occupancy sensor can detect if anybody sits or not, and the airbag won’t open if nobody. It can also design the dimension of sensors and sensitivity of contacts as the shape and hardness of the car seat.
Seat belts are part of a passive safety system and are mainly intended to reduce injuries by preventing car occupants from hitting hard interior elements of the vehicle,hitting other passengers or being ejected from the vehicle.In the event of a crash,safety belts reduce the risk of fatal injury to front reduce the risk of fatal injury to front seat occupants by 45% in cars and by 60% in light trucks.
Considering 80% of unbuckled occupants put on thier seat belt thanks to an SBR,it is one of the most effective ways of preventing death or injury in a car crash.