THREE-DIMENSIONAL CONTROL METHOD FOR RAW MATERIAL YARD

Japanese Patent JP3793348

B2

PROBLEM TO BE SOLVED: To facilitate the processing logic for coordinate correction by obtaining major axes passing through the representative points of all meshes and parallel to the longitudinal axis in the length direction of a raw material yard and line segments having the intersections of both end faces of a raw material heap at both ends, and controlling the three-dimensional existence range of each raw material heap as bundles of line segments for all meshes.
SOLUTION: A raw material heap R and brand regions G1, G2 are grasped and controlled as bundles of line segments in the length direction of a raw material yard respectively. A plane A specified by the coordinate axis (y-axis) in the width direction of the raw material yard and the coordinate axis (z-axis) in the height direction is assumed, the plane A is partitioned into many meshes M, and major axes L passing through the representative points of the meshes M and parallel to the coordinate axis (x-axis) in the length direction of the raw material yard are assumed. A column extending in the x-axis direction on one mesh serving as a base face and having the front and rear ends on both end faces of the raw material heap P or a brand region is considered, such columns are obtained for all meshes, and the raw material heap R or the brand regions G1, G2 are approximated by a solid bundled with all columns located on all meshes.

Toshiaki Awa
Akiyoshi Oshio
Shuji Tomita
Atsuhiro Tokuda

JP7559898A

July 05, 2006

March 24, 1998

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Nippon Steel Corporation

B65G63/00; B65G65/02; (IPC1-7): B65G63/00; B65G65/02

JP61282595A
JP52112974A
JP1242322A
JP9323887A

Takashi Ishida
Takao Mitsui
Toshio Toda
Masaya Nishiyama

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