Device and method for detecting the jointed parts of strip in an endless hot rolling process
US8295608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2008 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Aug 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30136
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There are provided a device and method for detecting joint parts of a steel strip in an endless hot rolling process. The device for detecting joint parts of a steel strip in an endless hot rolling process includes an image signal collection block receiving image signals, each having information on gray level pixels of a steel strip, from a charge coupled device (CCD) camera; an edge line detection block receiving the image signals from the image signal collection block to detect an edge line of the steel strip; a profile calculation block receiving information on the detection of the edge line from the edge line detection block to calculate the sum of gray levels up to an edge line of the steel strip in a traverse direction of the steel strip when the edge line is detected by the edge line detection block; a joint part judgement block receiving information on the sum of the gray levels, which shows a current profile value, from the profile calculation block to judge the edge line as a joint part when a ratio of a mean value of the current profile and a mean value of the previous profile is less than a predetermined value; and an output block receiving information on the judgement o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.