An autonomous transport vehicle for transporting items in a storage and retrieval system is provided. The autonomous transport vehicle includes at least two drive wheels and a controller, where each drive wheel is independently driven and a drive wheel encoder is disposed adjacent each drive wheel.
An autonomous transport vehicle for transporting items in a storage and retrieval system is provided. The autonomous transport vehicle includes at least two drive wheels and a controller, where each drive wheel is independently driven and a drive wheel encoder is disposed adjacent each drive wheel. The controller, in communication with the drive wheel encoders, is configured to determine a kinematic state of the autonomous transport vehicle within the storage and retrieval system based on incremental data from the drive wheel encoders only and independent of drive wheel slippage.
대표청구항▼
1. A method for transporting items in a storage and retrieval system with an autonomous transport vehicle, the method comprising: independently driving at least two drive wheels of the autonomous transport vehicle;disposing a drive wheel encoder adjacent each drive wheel; andidentifying, with a cont
1. A method for transporting items in a storage and retrieval system with an autonomous transport vehicle, the method comprising: independently driving at least two drive wheels of the autonomous transport vehicle;disposing a drive wheel encoder adjacent each drive wheel; andidentifying, with a controller in communication with the encoders, a kinematic state of the autonomous transport vehicle within the storage and retrieval system based only on incremental data received by the controller from the drive wheel encoders, independent of drive wheel slippage. 2. The method of claim 1, further comprising determining, with the controller, command logic for operating the autonomous transport vehicle based on the kinematic state. 3. The method of claim 1, further comprising disposing one or more of a wheel encoder for each drive wheel, an inertial sensor, at least one storage shelf location sensor and at least one line following sensor on the autonomous transport vehicle, and receiving data, with the controller, from the one or more of the wheel encoder for each drive wheel, the inertial sensor, the at least one storage shelf location sensor and the at least one line following sensor for identifying the kinematic state. 4. The method of claim 1, further comprising determining, with the controller, a position of the autonomous transport vehicle within the storage and retrieval system independent of drive wheel slippage. 5. The method of claim 4, further comprising determining, with the controller, the position of the autonomous transport vehicle based on a drive wheel having a lowest velocity of the at least two drive wheels when a positive torque is applied by the at least two drive wheels. 6. The method of claim 4, further comprising determining, with the controller, the position of the autonomous transport vehicle based on a drive wheel having a highest velocity of the at least two drive wheels when a negative torque is applied by the at least two drive wheels. 7. The method of claim 4, further comprising filtering spurious data from each of the encoders with an extended Kalman filter of the controller. 8. The method of claim 4, further comprising sensing guide lines on a surface of the storage and retrieval system with at least one line following sensor of the autonomous transport vehicle, and weighting data, with the controller, from each of the encoders based on a guide line deviation signals provided by the at least one line following sensor. 9. The method of claim 4, verifying, with the controller, a position of the autonomous transport vehicle by detecting one or more datum lines on a surface of the storage and retrieval system. 10. The method of claim 1, further comprising disposing at least one releasably lockable caster wheel on the autonomous transport vehicle. 11. The method of claim 1, further comprising determining, with the controller, a position of the autonomous transport vehicle within a storage aisle of the storage and retrieval system independent of drive wheel slippage. 12. The method of claim 1, further comprising determining, with the controller, a position of the autonomous transport vehicle on a transfer deck of the storage and retrieval system independent of drive wheel slippage. 13. The method of claim 1, further comprising determining, with the controller, a position of the autonomous transport vehicle with respect to a storage shelf of the storage and retrieval system independent of drive wheel slippage, and effecting placement position of a payload carried by the autonomous transport vehicle on the storage shelf from the determined position of the autonomous transport vehicle.
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Zeitler, David W., AGV position and heading controller.
Ricco Gary C. (Redding CA) Shannon Michael D. (Sunnyvale CA) Wilkins Tyler R. (Menlo Park CA), Apparatus and method for handling information storage media.
Maynard, Michael D.; Young, Richard C.; Ward, Ronald E., Article retrieving and positioning system and apparatus for articles, layers, cases, and pallets.
Angell Mickey A. (Winston-Salem NC) Cearley Thomas W. (Clemmons NC) Lewis James C. (Albany GA) St. Onge Arthur R. (York PA) Szysh John A. (Mt. Joy PA) White Kenneth W. (Ithaca NY), Automated cargo loading system.
Benedict, Charles E.; Pfeifer, Brian G.; Yates, Christian A.; Bladen, Scott K.; Dobbs, James R., Automated material handling system with load transfer vehicles.
Parsons Donald F. (West Chester PA) Gress Kyle (Denver PA) Dempsey James M. (Phoenixville PA) Ross Joseph (Downington PA) Parsons William (Boothwyn PA) Parsons Stephen (Devon PA), Automated storage and retrieval system.
Gleyze Jean (Aubenas FRX) Zoller Frdric (Aubenas FRX), Automated stores and novel type of truck making it possible for the products to be positioned in or extracted from the s.
Lindqvist Per-Erik (Easton PA) Wetherell Jeffry H. (Nazareth PA), Automatic order selection system capable of responding to simultaneous order requests.
Lloyd Kurt M. (Pewaukee WI) Roth Christopher L. (West Allis WI) Jones LaMar A. (Sandy UT) Jackson Billy R. (North Salt Lake UT) Hrica James P. (Sandy UT) Hueman Dennis G. (New Berlin WI) Kirby Rodney, Automatic storage and retrieval system.
Ennis F. Lyman (376 Manford Way Pasadena CA 91105) Collins Earl R. (801 Craig Ave. La Canada CA 91101), Automatic storage and retrieval system for motor vehicles and the like.
Hoffmann Christopher J. (857 Colonial Ct. Birmingham MI 48009), Automatic storage and retrieval system having an extendible bin extraction mechanism with pop-up tabs.
Reverte, Carlos F.; Thayer, Scott M.; Whittaker, William; Close, Eric C.; Slifko, Adam; Hudson, Edison; Vallapuzha, Subramanian, Autonomous inspector mobile platform.
Starr,Matthew T.; Woodruff,Jennifer L.; Brace,Clark D.; Kumpon,Peter J.; Armagost,Karl M., Data cartridge library operable with a multipiece magazine, drive bay, user interface, an entry/exit port, and universal electronics bay.
Yardley James V. (Centerville UT) Whatcott Gary L. (Holladay UT) Petersen John A. M. (Bountiful UT) Bloomfield Bryan A. (Bountiful UT) Guest Vaughn W. (Farmington UT) Mottes Rick S. (Roy UT) Forman R, Downward compatible AGV system and methods.
Yardley James V. (Centerville UT) Whatcott Gary L. (Holladay UT) Petersen John A. M. (Bountiful UT) Bloomfield Bryan A. (Bountiful UT) Guest Vaughn W. (Farmington UT) Mottes Rick S. (Roy UT) Forman R, Downward compatible AGV system and methods.
Schrder Niels (Pinneberg DEX), High bay racking store for storing and for removing from storage goods in the form of rolls, in a particular paper rolls.
Schrder Niels (Pinneberg DEX), High-shelf system store for the storage and the removal from the store of roll-shaped material, more particularly paper.
Kroll Charles R. (Delafield WI) Briggs John (New Berlin WI) Jurkowski Keith O. (Waukesha WI) Blom Eric C. (Milwaukee WI), High-speed automatic storage and retrieval system and apparatus therefor.
Lu, Jianbo, Integrated control system for stability control of yaw, roll and lateral motion of a driving vehicle using an integrated sensing system to determine a sideslip angle.
Mountz,Michael C.; D'Andrea,Raffaello; LaPlante,John A.; Lyons, II,David P.; Mansfield,Peter K.; Amsbury,Burl W., Inventory system with mobile drive unit and inventory holder.
Bodin,William Kress; Masterson,Michael Lee; Watt,Stephen James, Item position indicator and optimized item retrieval for a sensor equipped storage unit.
Duncan L. Scot (North Field OH) Germuska Richard W. (Brunswick OH) Kral Stephen L. (Garfield Heights OH) Lasecki Robert R. (Eastlake OH) Riley Michael W. (Strongsville OH), Materials handling system.
Rose ; Jr. Malcolm F. (Nashville TN) Tyree ; Jr. Charles B. (Mt. Juliet TN) Dodson James D. (Nashville TN) Bennett Terry L. (Nashville TN), Method and apparatus for handling glass sheets.
Vainio Frans (Karhutie 6 O SF-02400 Kirkkonummi FIX) Hilber Walther (Griessbergweg 3 D-7142 Marbach DEX), Method and apparatus for storing paper rolls in a storage shelving.
Thacher, Russell James; Moorehead, Stewart J.; Dickson, Monte Andre; Flenniken, John Michael, Method and system for determining a position of a vehicle.
Ehret Thomas (Seelbach DEX) Kost Friedrich (Kornwesttheim DEX) Hartmann Uwe (Stuttgart DEX) Erhardt Rainer (Stuttgart DEX) Van Zanten Anton (Ditzingen DEX) Busch Gerd (Gerlingen DEX) Weiss Karl-Josef, Method for improving the controllabilty of motor vehicles.
Lubbers LeRoy (Grand Rapids MI) Stubbs William K. (Grand Rapids MI) Zollinger Howard A. (Ada Township ; Kent County MI), Multi-aisle warehouse system with mobile lift having control means for an article transfer vehicle.
Francis, Robert C.; McGee, James P.; Sainati, Robert A.; Sheehan, Jr., Richard L.; Tong, Sai-Kit K., Object tracking and management system and method using radio-frequency identification tags.
Lichti ; Sr. Robert (Lake Almanor Peninsula CA) Bernard ; II Clay (Pt. Richmond CA) Perry Daniel C. (San Jose CA) Lukken Stanley H. (San Francisco CA), Organizer system and method for a rotatable storage structure.
Yardley James V. (Centerville UT) Whatcott Gary L. (Holladay UT) Petersen John A. M. (Bountiful UT) Schutten Herman P. (Milwaukee WI), Proportional position-sensing system for an automatic guided vehicle.
Riley David M. (Garland TX) Olson Curtis W. (Plano TX) Williamson Jeffrey S. (Carrollton TX) Attard Brian M. (Allen TX) Pratt Michael K. (Plano TX), Rack lift assembly.
Kantola, Juhana; Rapila, Tero; Halkola, Teppo; Raevaara, Vesa; Kortesmäki, Jyrki, System and a method for manipulating a cassette used in storage by means of a transfer device.
Peshkin, Michael A.; Colgate, J. Edward; Santos-Munne, Julio; Meer, David; Lipsey, James; Wannasuphoprasit, Witaya; Klostermeyer, Stephen H., System and architecture for providing a modular intelligent assist system.
Ogawa Hiroshi (Aichi JPX) Miyazaki Yasuyuki (Aichi JPX) Yoshida Susumu (Kakamigahara JPX) Sasaki Shinichi (Nagoya JPX), System for automatically controlling movement of unmanned vehicle and method therefor.
Bernard ; II Clay (Richmond CA) Lichti ; Sr. Robert D. (Lake Almanor Peninsula CA) Lukken Stanley H. (San Francisco CA) Perry Daniel C. (San Jose CA), System for delivery.
Goncalves,Luis Filipe Domingues; Karlsson,L. Niklas; Pirjanian,Paolo; Di Bernardo,Enrico, Systems and methods for controlling a density of visual landmarks in a visual simultaneous localization and mapping system.
Karlsson,L. Niklas; Pirjanian,Paolo; Goncalves,Luis Filipe Domingues; Di Bernardo,Enrico, Systems and methods for using multiple hypotheses in a visual simultaneous localization and mapping system.
Gerald A. Isaacs ; Luiz C. Harres ; John W. Kulas ; Joseph C. Rotenberry ; Kenneth A. McKee ; Lynn V. Hill ; Mark L. Carlile ; Richard C. Hickey ; Charles M. Combs ; Harold G. Burkett, Jr., Transfer of cartridges containing flat articles.
Braun Dieter (Weinstadt DEX) Mehren Herbert (Ludwigsburg DEX) Wulf Helmut (Ostfildern DEX), Vehicle adapted to be guided on tracks for the public local passenger traffic with pivotal rear axle and longitudinal gu.
Pilutti Thomas Edward ; Hrovat Davorin David ; Ulsoy Ali Galip, Vehicle steering system and method for controlling vehicle direction through differential braking of left and right road wheels.
Baatz,Andreas, Vertical conveyor arrangement for the transport of catering service goods in an aircraft with at least two decks arranged one above another.
Kitanaka Takeshi (Kawasaki JPX) Masuda Atsushi (Kawasaki JPX) Utsugi Yoshio (Kawasaki JPX), Vertical installation system in which information processing apparatuses are installed.
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