Method and apparatus for determining and retrieving positional information

摘要

An apparatus for determining and retrieving positional information including a surface having a plurality of first elements and a plurality of second elements, a first detection element connected to at least one of the plurality of first elements, and a second detection element connected to at least one of the plurality of second elements. The detection elements may include pulse detection elements or current sensing circuits. The plurality of first elements and the plurality of second elements may include conductive and non-conductive threads, and the conductive threads may include piezoelectric crystals embedded within conductive plastic.

主权项

1. A method for determining and retrieving positional information, comprising:
locating a plurality of first conductive elements on a surface and a plurality of second conductive elements on said surface to form a first grid having a first plurality of intersections, electrically isolating the plurality of first conductive elements from the plurality of second conductive elements; coupling a second grid to the surface and electrically isolating the second grid from the plurality of first conductive elements and the plurality of second conductive elements, the second grid comprising a plurality of third conductive elements intersecting each other at a plurality of nodes, the plurality of nodes aligned with the plurality of intersections; penetrating the surface with a first projectile; electronically determining a first location of a first penetration of the surface with the first projectile based on a first change in a first electrical measurement of the plurality of first conductive elements and a second change in a second electrical measurement of the plurality second conductive elements; penetrating the surface with a second projectile; electronically generating a plurality of possible penetration points of the second projectile based on the first location; performing a computer simulation of the second grid; performing a plurality of third electrical measurements on a second plurality of locations of the second grid; and electronically determining a second location of a second penetration of the surface with the second projectile based on the plurality of possible penetration points of the second projectile, the computer simulation and the plurality of third electrical measurements.