GUIDANCE SYSTEM FOR A MOBILE MACHINE
First Claim
1. A method of determining a grade of a roadway bordered by a marker including a bottom that contacts the roadway, with a machine traveling on the roadway, the method comprising:
- locating, with a scanning device mounted on the machine, a first point indicative of the bottom of the marker at a first geographical location along the roadway;
locating, with the scanning device, a second point indicative of the bottom of the marker at a second geographical location along the roadway; and
comparing the locations of the first point and the second point to determine the grade of the roadway.
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Accused Products
Abstract
A method is disclosed for determining a grade of a roadway bordered by a marker including a bottom that contacts the roadway, with a machine traveling on the roadway. A scanning device mounted on the machine is used to locate a first point indicative of the bottom of the marker at a first geographical location along the roadway. The scanning device is also used to locate a second point indicative of the bottom of the marker at a second geographical location along the roadway. The locations of the first and second points are compared to determine the grade of the roadway. Also disclosed is a method for determining a bank of a roadway bordered on a first side by a first marker including a bottom that contacts the roadway and bordered on a second side by a second marker including a bottom that contacts the roadway, with a machine traveling on the roadway. A first scanning device mounted on one of a left side and a right side of the machine may be used to locate a first point indicative of the bottom of the first marker at a geographical location along the roadway. A second scanning device mounted on the other side of the machine may be used to locate a second point indicative of the bottom of the second marker at the same geographical location. The locations of the first and second points may be compared to determine the bank of the roadway.
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Citations
20 Claims
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1. A method of determining a grade of a roadway bordered by a marker including a bottom that contacts the roadway, with a machine traveling on the roadway, the method comprising:
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locating, with a scanning device mounted on the machine, a first point indicative of the bottom of the marker at a first geographical location along the roadway; locating, with the scanning device, a second point indicative of the bottom of the marker at a second geographical location along the roadway; and comparing the locations of the first point and the second point to determine the grade of the roadway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of determining a bank of a roadway bordered on a first side by a first marker including a bottom that contacts the roadway and bordered on a second side by a second marker including a bottom that contacts the roadway, with a machine traveling on the roadway, the method comprising:
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locating, with a first scanning device mounted on one of a left side and a right side of the machine, a first point indicative of the bottom of the first marker at a geographical location along the roadway; locating, with a second scanning device mounted on the other one of the right side and the left side of the machine, a second point indicative of the bottom of the second marker at the same geographical location; and comparing the locations of the first point and the second point to determine the bank of the roadway. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of controlling travel of a machine on a roadway bordered by an earthen berm including a bottom that contacts the roadway, the method comprising:
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determining at least one of a grade and a bank of the roadway by sensing the bottom of the earthen berm with at least one sensing device mounted on the machine; determining, with a controller, a maximum speed for the machine to travel on the roadway, based on the determined grade or bank of the roadway; comparing, with the controller, an actual speed at which the machine is traveling on the roadway with the determined maximum speed; and outputting, with the controller, a signal based on the comparison which suggests or causes a change in operation of the machine. - View Dependent Claims (17, 18, 19, 20)
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Specification