Gain-scheduled feedback document handling control system
Methods and systems for performing sheet registration are described. A device having a plurality of drive rolls may receive a sheet. Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedbac...
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creator | ELLIOT JACK GAYNOR |
description | Methods and systems for performing sheet registration are described. A device having a plurality of drive rolls may receive a sheet. Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedback values may be determined based on a difference between each state variable and a corresponding reference state variable based on a desired sheet trajectory. Control input variable values may be determined based on the error-space feedback values and one or more gains. A motor control signal for a motor for each drive roll may be determined based on the control input variable values and the state variables. Each motor control signal may impart a desired angular velocity for at least one drive roll. The identifying step and each determining step may be performed repeatedly to register the sheet to the desired trajectory. |
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Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedback values may be determined based on a difference between each state variable and a corresponding reference state variable based on a desired sheet trajectory. Control input variable values may be determined based on the error-space feedback values and one or more gains. A motor control signal for a motor for each drive roll may be determined based on the control input variable values and the state variables. Each motor control signal may impart a desired angular velocity for at least one drive roll. The identifying step and each determining step may be performed repeatedly to register the sheet to the desired trajectory.</description><language>eng</language><subject>CONVEYING ; HANDLING THIN OR FILAMENTARY MATERIAL ; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES ; PACKING ; PERFORMING OPERATIONS ; STORING ; TRANSPORTING</subject><creationdate>2010</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20100511&DB=EPODOC&CC=US&NR=7712737B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20100511&DB=EPODOC&CC=US&NR=7712737B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ELLIOT JACK GAYNOR</creatorcontrib><title>Gain-scheduled feedback document handling control system</title><description>Methods and systems for performing sheet registration are described. A device having a plurality of drive rolls may receive a sheet. Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedback values may be determined based on a difference between each state variable and a corresponding reference state variable based on a desired sheet trajectory. Control input variable values may be determined based on the error-space feedback values and one or more gains. A motor control signal for a motor for each drive roll may be determined based on the control input variable values and the state variables. Each motor control signal may impart a desired angular velocity for at least one drive roll. The identifying step and each determining step may be performed repeatedly to register the sheet to the desired trajectory.</description><subject>CONVEYING</subject><subject>HANDLING THIN OR FILAMENTARY MATERIAL</subject><subject>HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES</subject><subject>PACKING</subject><subject>PERFORMING OPERATIONS</subject><subject>STORING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2010</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLBwT8zM0y1OzkhNKc1JTVFIS01NSUpMzlZIyU8uzU3NK1HISMxLycnMS1dIzs8rKcrPUSiuLC5JzeVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGhwebmhkbmxuZORsZEKAEAyjMuYQ</recordid><startdate>20100511</startdate><enddate>20100511</enddate><creator>ELLIOT JACK GAYNOR</creator><scope>EVB</scope></search><sort><creationdate>20100511</creationdate><title>Gain-scheduled feedback document handling control system</title><author>ELLIOT JACK GAYNOR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US7712737B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2010</creationdate><topic>CONVEYING</topic><topic>HANDLING THIN OR FILAMENTARY MATERIAL</topic><topic>HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES</topic><topic>PACKING</topic><topic>PERFORMING OPERATIONS</topic><topic>STORING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>ELLIOT JACK GAYNOR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ELLIOT JACK GAYNOR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Gain-scheduled feedback document handling control system</title><date>2010-05-11</date><risdate>2010</risdate><abstract>Methods and systems for performing sheet registration are described. A device having a plurality of drive rolls may receive a sheet. Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedback values may be determined based on a difference between each state variable and a corresponding reference state variable based on a desired sheet trajectory. Control input variable values may be determined based on the error-space feedback values and one or more gains. A motor control signal for a motor for each drive roll may be determined based on the control input variable values and the state variables. Each motor control signal may impart a desired angular velocity for at least one drive roll. The identifying step and each determining step may be performed repeatedly to register the sheet to the desired trajectory.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORMING OPERATIONS STORING TRANSPORTING |
title | Gain-scheduled feedback document handling control system |
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