Method of detecting deviation in position and misshape of transported objects
US5365949A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24C5/31
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
This invention relates to a method of detecting deviation in position and misshape of transported objects which have a predetermined shape and are successively transported at predetermined intervals with the transported objects being maintained in a predetermined direction, comprising the steps of: generating synchronizing signals corresponding to the transportation intervals on a predetermined cycle; detecting passage of end portions of the transported objects at predetermined positions; calculating a time interval between the generation of the synchronizing signals and the passage of the end portions; calculating a mean value and a standard deviation for a prescribed number of the transported objects from time series information; judging a transported object as an object of which position is deviated or shape is deformed when the difference between measured time interval and the mean time interval is larger than a criterion which is calculated based on the standard deviation; replacing the oldest information on the time interval in the time series information with information on time interval of a transported object which is judged that a position thereof is not deviated or a sha…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.