Dematic Gmbh

Doane, Martin R.

Zeitler, David W.

Martin R Doane

David W Zeitler

Douglas L Milliman

An induction subsystem for a conveying system includes a plurality of induction conveying units that are controlled by a plurality of controls in a manner that delivers articles to a release conveyor with gaps between the articles that approach a desired length. The conveying units may be controlled using algorithms that examine a planned release time for an article and a time at which the article would be released were it to complete the rest of its travel through the induction subsystem at one or more nominal speeds. The difference is used to determine an appropriate speed for at least one of the conveying units. The conveying unit may alternatively be controlled using algorithms that determine desired speed ratios for the conveying units, and which may seek to control the centerline to centerline spacing of articles as they reach the release point such that desired gaps are created.

Conveyor induct

An induction subsystem for a conveyor sortation system and method of inducting articles includes providing a plurality of tandem conveying surfaces. The speeds of the conveying surfaces are individually controllable. At least one sensor is provided for sensing articles on at least one of the conveying surfaces. A control is responsive to the at least one sensor for controlling the speeds of said conveying surfaces in a manner that controls relative positions of articles. The control defines a plurality of feedback-gapping algorithms. Each of the feedback-gapping algorithms is defined between adjacent conveying surfaces for adjusting relative speeds of those adjacent conveying surfaces as a function of at least one parameter of the articles. The control controls relative positions of articles with the feedback-gapping algorithms beginning with a pair of adjacent conveying surfaces and cascading through adjacent pairs of adjacent conveying surfaces.

Conveyor induction subsystem and method of inducting articles using feedback-gappers

A conveyor system, such as an induction subsystem for supplying articles to a sortation subsystem, and method of conveying articles includes providing a conveying surface for conveying a series of articles and at least one sensor for sensing the articles on the conveying surface. A control is provided which establishes at least one parameter for each of the articles and controls the conveying surface as a function of the at least one parameter of each of the articles. The control includes a computer and a program for the computer. The program includes at least one probability estimator. The control determines the at least one parameter of each of the articles at least in part by the at least one probability estimator. The control controls gaps between articles or synchronizes arrival of articles at the sortation system.

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Rockford, MI, United States of America

Martin R Doane