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Apparatus for automatically inspecting road surface pavement condition

  • US 7,562,563 B2
  • Filed: 01/17/2008
  • Issued: 07/21/2009
  • Est. Priority Date: 02/01/2007
  • Status: Expired due to Fees
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1. An apparatus for automatically inspecting a road surface pavement condition, which is equipped in a vehicle, the automatic road surface pavement condition inspection apparatus comprising:

  • a road surface photographing unit having a CCD (Charge Coupled Device) camera and a digital camera, for photographing a road surface pavement condition of a road in order to inspect the road surface pavement condition;

    a road surface rutting measuring unit for measuring a road surface bend state, which comprises;

    a transverse support which is transversely arranged in front of or at a rear side of the vehicle;

    height sensors which are installed on the transverse support;

    acceleration sensors which are respectively disposed in correspondence to wheel tracks of the vehicle; and

    a speedometer which is mounted on one wheel of the vehicle in order to measure speed of the vehicle;

    a position decision unit having a global positioning system (GPS), for determining a position of the vehicle, and having a relative coordinate positioning system, for determining relative position and distance;

    a data analysis and storage unit for analyzing and storing various kinds of data, which comprises;

    a video cassette recorder (VCR) which stores video images photographed by the CCD camera of the road surface photographing unit;

    a video analyzer which analyzes and processes video images photographed by the digital camera;

    a central computer which stores signals processed by the video analyzer;

    a multi-channel analyzer which processes electrical signals transmitted from the height sensors and the acceleration sensors of the road surface rutting measuring unit; and

    a portable memory which temporarily stores the video images photographed by the CCD camera and the digital camera;

    a road surrounding circumstance photographing unit for photographing front and rear views and left and right views of the road, which comprises;

    a front-end camera which is installed in front of the vehicle;

    upper-end cameras which are installed at the front and rear sides of an upper portion of the vehicle and at the left and right sides of the upper portion of the vehicle, respectively; and

    road surface proximity cameras which photograph road surfaces proximate to the road;

    a traveling noise measuring unit for measuring traveling noise on the road, which comprises a noise measuring sensor which is installed on the bottom of the vehicle; and

    an auxiliary unit for supplying electric power to the road surface photographing unit, the road surface rutting measuring unit, the position decision unit, the data analysis and storage unit, the road surrounding circumstance photographing unit, and the traveling noise measuring unit.

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