| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and a device detecting the running position of a rolling stick with a simple constitution without needing a vertical side wall, and to provide a program therefor. <P>SOLUTION: This device is constituted such that a guide member 3 having a constant width (w) parallel to the running path 1 of the rolling stock 2 is longitudinally laid with a constant inclination angle, and an image pick up machine 4 is mounted on the rolling stock 2 wherein the guide member 3 is focused in a view field of the image pick up machine. The position of the rolling stock 2 to the guide member 3 is calculated from 2-dimensional coordinates p1, p2 which are coordinates of both ends of the guide member 3 on an image plane 4g of the image pick up machine. Preferably, a pair of image pick up machines 4A, and 4B coupled with each direction of optical axisθA andθB coincident on the same plane 12 are mounted on the rolling stock 2. The position of the rolling stock 2 to the guide member 3 is calculated from 2-dimensional coordinates of both the edge parts A1, and A2 of the guide member 3, which is placed in both the view fields of both the image pick up machines 4A, and 4B, on both the image planes 4gA, and 4gB. <P>COPYRIGHT: (C)2004,JPO</p> |
