Position referencing, measuring and paving method and apparatus for a profiler and paver
AssigneeBlaw-Knox Construction Equipment Corporation
InventorKerry Malone
Life of this patent
Estimating the term…
Abstract
A profiler is used to collect data on a base surface. An asphalt paver is provided with a like profiler that measures smoothness of a fresh mat of asphalt laid by the paver. The profilers measure surface elevation as a function of forward travel position. The profiler and paver position are determined by a fixed referencing system, such as the Global Positioning System (GPS). Surface elevation is plotted against position of the profiler and used to control a screed levelling a mat of paving material. A subsequent plot shows smoothness of the mat.
Claims33
A road working apparatus for use with a transmitter fixed relative to the surface of the earth, said road working apparatus comprising:
- a movable vehicle;
- a leveller disposed on the vehicle, said leveller forming a mat of material on a base surface and said mat of material having an upper surface;
- a first receiver on said vehicle receiving a positioning signal from said transmitter and generating position information expressing the position of the leveller with respect to the earth;
- a leveller controller for controlling the leveller;
- and
- means for providing base surface profile information to said leveller controller, wherein said leveller controller controls said leveller based upon said base profile information and said position information.
Dependencies are inferred from the claim text.