Trolley wire wear measuring device using binary operated images
US8071967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Aug 14, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60M1/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A trolley wire wear measuring device includes a processor configured to obtain a pair of line sensor images in which luminance signals of scanning lines are arranged; a differential processor configured to perform a differential process to create a line sensor image; a binary operation processor configured to perform a binary operation process on the line sensor image obtained by the differential process to create a binary operated image in which a worn portion of the trolley wire is emphasized; an edge detector configured to detect edges of both sides of the worn portion in the binary operated image; and a worn portion width calculator configured to calculate a point-to-point distance of the both side edges as a whole width of the worn portion of the trolley wire in the binary operated image and determine a worn portion width of the trolley wire using this whole width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.