Dynamic discharge compensation for a sortation system
First Claim
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1. A material handling system comprising:
- a sortation system;
an image device for detecting an image of an article at an off-center location on a selected moving carrier of the sortation system;
a controller in communication with the image device and the sortation system to perform operations to;
determine the off-center location by performing image processing of the image;
determine a change to a discharge command that compensates for the off-center location to discharge the article to a selected stationary discharge location; and
execute the changed discharge command to discharge the article at the selected stationary discharge location.
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Abstract
The discharge accuracy of unit sortation is improved by making real time adjustments to the discharge timing of the carrier based on the determined actual position of each article on respective carriers. The adjustments are applied at the time the discharge command is given.
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Citations
24 Claims
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1. A material handling system comprising:
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a sortation system; an image device for detecting an image of an article at an off-center location on a selected moving carrier of the sortation system; a controller in communication with the image device and the sortation system to perform operations to; determine the off-center location by performing image processing of the image; determine a change to a discharge command that compensates for the off-center location to discharge the article to a selected stationary discharge location; and execute the changed discharge command to discharge the article at the selected stationary discharge location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A controller of a material handling system, the controller comprising:
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an interface in communication with a sortation system; and a processor in communication with an image device positioned to image articles on carriers of a sortation system and the interface and comprising a processor to perform operations to; determine an off-center location of an article on a selected carrier of the sortation system by performing image processing of the image; determine a change to a discharge command that compensates for the off-center location to discharge the article to a selected stationary discharge location; and execute the changed discharge command to discharge the article at the selected stationary discharge location. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of controlling a material handling system, the method comprising:
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imaging by an image device an article on a selected carrier of a sortation system; determining an off-center location of the article on the selected carrier of the sortation system by performing image processing of the image; determining a change to a discharge command that compensates for the off-center location to discharge the article to a selected stationary discharge location; and executing the changed discharge command to discharge the article at the selected stationary discharge location. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification