Method and an apparatus for monitoring the environment around a vehicle and an operation support system using the same

  • US 5,612,686 A
  • Filed: 09/28/1994
  • Issued: 03/18/1997
  • Est. Priority Date: 09/28/1993
  • Status: Expired due to Fees
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First Claim
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1. A vehicle operation support system, comprising:

  • a picture pickup device attached to a vehicle for picking up a picture of a road surface in front of the vehicle so that the lane position of the vehicle is arranged almost at the center of the picked up picture;

    a control unit, including a picture processing unit, for processing picture data picked up by said picture pickup device, a vehicle running state judgment unit for judging states of said vehicle and an actuator drive unit; and

    an alarm unit for generating alarms;

    whereby said picture processing unit generates display data representing a trapezoidal personal area enclosed by right and left white lines of a lane of said vehicle and two preset horizontal lines to represent a picture of the road surface in front of the vehicle, and wherein said actuator drive unit is operated and an alarm for urging an operator to initiate a steering operation is generated from said alarm unit, when a difference between lengths between said right and said left line type marks of said trapezoidal personal area exceeds a predetermined first threshold value.

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