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Seatbelt usage detection system

  • US 20030137411A1
  • Filed: 10/29/2002
  • Published: 07/24/2003
  • Est. Priority Date: 10/30/2001
  • Status: Active Grant
First Claim
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1. A system for detecting proper usage of a seatbelt in a vehicle by an operator, the system comprising:

  • a first communication device arranged on the seatbelt;

    a second communication device, wherein one of the first and second communication devices is a transmitter and the other of the first and second communication devices is a receiver, the receiver and transmitter being capable of establishing a communication link with each other, the second communication device being arranged in the vehicle so as to be able to establish a communication link with the first communication device of a predetermined signal strength upon proper fastening of the seatbelt around the body of an operator; and

    a processing unit for monitoring the signal strength of the communication link between the first and second communication devices and for providing a signal that the seatbelt is unfastened when the signal strength is less than the predetermined signal strength.

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