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Alcohol detection system

  • US 7,911,350 B2
  • Filed: 06/16/2008
  • Issued: 03/22/2011
  • Est. Priority Date: 06/25/2007
  • Status: Active Grant
First Claim
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1. A drunk driving detection system for incorporation into a vehicle, the system comprising:

  • a first liquid-impermeable and air-permeable film provided to cover a first opening in an object which is to be grasped by a driver of the vehicle;

    a pair of first contact detection electrodes provided on a surface of the first film;

    a first alcohol sensor provided to detect a level of alcohol introduced into the first opening; and

    a control circuit coupled to the first contact detection electrodes and the first alcohol sensor, the control circuit operable to measure a resistance between the first contact detection electrodes;

    wherein when the resistance is within a predetermined range, the control circuit determines the driver is in contact with the first film and detects an alcohol drinking condition of the driver based on an output from the first alcohol sensor.

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