Patent ID: 8823492
Filing Date: 2014-09-02
Classification: G08C,H04Q

Abstract:
1. A method on a computing device for defining a buffer zone around a buried asset at an above-surface location, the method comprising: receiving and storing a plurality of buried asset data points, wherein each buried asset data point comprises a geographical coordinate and a precision data value corresponding to the geographical coordinate, wherein a precision data value is one of a set of ascending values of a level of precision of the geographical coordinate, and wherein the plurality of buried asset data points correspond to analog radio frequency signals that were detected and read from the buried asset at the above-surface location; and generating a first data structure that represents a two dimensional area comprising a buffer zone at the above-surface location, wherein the first data structure is generated by defining an area around each geographical coordinate of the plurality of buried asset data points, and wherein a size of each area is based on the precision data values of the plurality of buried asset data points.