发明名称 |
A method of detecting deviation in position and misshape of transported objects. |
摘要 |
<p>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 shape thereof is not deformed to renew the time series information; and calculating a mean value and a standard deviation for the renewed time series information so as to be used for the judgment.</p> |
申请公布号 |
EP0523628(A2) |
申请公布日期 |
1993.01.20 |
申请号 |
EP19920111984 |
申请日期 |
1992.07.14 |
申请人 |
JAPAN TOBACCO INC. |
发明人 |
NISHIZAKA, TOSHIAKI;TAKAMORI, HIROKAZU;HASHIMOTO, TUYOSHI |
分类号 |
A24C5/31;A24C5/34;A24C5/47 |
主分类号 |
A24C5/31 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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