Patent ID: 9499952
Filing Date: 2016-11-22
CPC Classification: E02D

Claim Text:
1. A method for providing operational information to an operator of a pile driver for driving a pile into the ground, the method comprising the steps of: (a) setting a total station; (b) determining a mechanical coordinate of the total station; (c) defining a first coordinate system, the first coordinate system having a coordinate origin thereof at the mechanical coordinate; (d) causing the total station to collimate a first central point on a surface of the pile and determine a first coordinate of the first central point in the first coordinate system; (e) causing the total station to collimate a second central point on the surface of the pile and determine a second coordinate of the second central point in the first coordinate system; (f) setting first and second targets on the pile driver or respective positions away from the pile driver; (g) causing the total station to determine coordinates of the first and second targets in the first coordinate system; (h) defining a second coordinate system, the second coordinate system having a first horizontal direction parallel to the a vertical plane including the coordinates of the first and second targets, a second horizontal direction orthogonal to the first horizontal direction, and a reference point at which the pile is to be driven into the ground; (i) converting a first coordinate data in the first coordinate system into the second coordinate system to determine a second coordinate data in the second coordinate system, the first coordinate data being coordinates of first and second centers defined from the first and second coordinates; and (j) determining an amount of tilt of the pile in the second coordinate system using the second coordinate data.