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Apparatus and method for preventing collision of vehicle

  • US 9,031,774 B2
  • Filed: 05/13/2010
  • Issued: 05/12/2015
  • Est. Priority Date: 12/14/2009
  • Status: Active Grant
First Claim
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1. An apparatus for preventing collision of a vehicle, comprising:

  • an image data acquisition part including at least one external camera installed outside a user'"'"'s vehicle and configured to photograph surroundings of the user'"'"'s vehicle to acquire external image data including images for portions of (i) the user'"'"'s vehicle, (ii) a painted lane at one or more sides of the user'"'"'s vehicle, and (iii) another vehicle running in an adjacent carriageway, at predetermined time intervals, and including an internal camera installed inside the user'"'"'s vehicle and configured to photograph a driver of the user'"'"'s vehicle to acquire driver state image data;

    an image recognition part configured to analyze the external image data and recognize (i) the user'"'"'s vehicle, (ii) the painted lane, and (iii) the other vehicle;

    a running information determination part configured to calculate (i) a first distance between the user'"'"'s vehicle and the painted lane and (ii) a second distance between the other vehicle and the painted lane on the basis of the recognized external image data, predict a running direction of the user'"'"'s vehicle and a running direction of the other vehicle, and determine whether a collision point is expected based on the predicted running direction of the user'"'"'s vehicle and the predicted running direction of the other vehicle,wherein the first distance between the user'"'"'s vehicle and the painted lane is calculated as a distance from a specific position at a side surface of the user'"'"'s vehicle to a position at which a straight line perpendicular to the side surface of the user'"'"'s vehicle meets the painted lane,wherein the running information determination part is configured to determine whether the user'"'"'s vehicle leaves the carriageway in which the user'"'"'s vehicle is running,wherein when it is determined that the user'"'"'s vehicle leaves the carriageway, the image data acquisition acquires the driver state image data using the internal camera in response to a request from a controller,wherein the image recognition part is configured to analyze the driver state image data to determine whether the driver of the user'"'"'s vehicle is drowsy; and

    the controller configured to initiate a cruise driving mode on the user'"'"'s vehicle when the running information determination part determines that the user'"'"'s vehicle leaves the carriageway and when it is determined that the driver of the user'"'"'s vehicle is drowsy.

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