Abstract: A charging system for autonomous transport vehicles including at least one charging contact disposed on each pick floor level of a storage and retrieval system, each of the at least one charging contact being located at a transfer station, at least one power supply configured to supply power to the at least one charging contact, and a controller in communication with the transfer station and being configured to communicate information relating to a transfer of items between the transfer station and a predetermined one of the autonomous transport vehicles and to apply power from the power supply to the at least one charging contact for charging the predetermined autonomous transport vehicle corresponding to the transfer and located at the transfer station, wherein the controller is configured to supply power to the charging contacts simultaneously with the predetermined autonomous transport vehicle exchanging items related to the transfer at the transfer station.

Abstract: An autonomous transport robot for transporting a payload, the autonomous transport robot including a drive section assembly having at least one motor and a pair of drive wheels coupled to the motor, a frame configured to support a payload, a transfer arm connected to the frame and configured for the autonomous transfer of payload to and from the frame, and a suspension system movably connecting the drive section assembly and the frame allowing relative movement between the frame and the drive section assembly.

Abstract: A storage and retrieval system is provided and includes a transfer deck having a longitudinal axis, a first storage section and a second storage section. The first storage section and second storage section are located on opposite sides of the transfer deck and are substantially symmetrically opposed to one another about the longitudinal axis, where each of the first and second storage sections includes storage aisles that are in communication with the transfer deck.

Abstract: An autonomous transport robot for transporting a payload, the autonomous transport robot includes a payload bed having at least one reference datum surface and at least one payload justification device, the at least one payload justification device being configured to position a payload on the payload bed in substantial contact with the at least one reference datum surface to place the payload in a predetermined position on the payload bed.

Abstract: A multilevel vertical conveyor system for transporting uncontained case units to and from a multilevel storage structure having an array of vertically stacked storage levels is provided and includes a frame having platform guide members, a drive member connected to the frame, and support platforms coupled to the drive member. The drive member is configured to move the support platforms relative to the frame in a substantially continuous vertical loop, each of the support platforms being configured to support multiple uncontained case units where each of the multiple uncontained case units is disposed at a respective predetermined area of a respective support platform, the support platforms have support members that are guided by guide members substantially throughout a path of the substantially continuous vertical loop, where the support members are guided in three point contact by the guide members substantially throughout the path.

Abstract: An autonomous transport vehicle is provided. The autonomous transport vehicle includes a payload bed and a transfer arm configured to extend along a first axis to transfer a pickface to and from the payload bed, the transfer arm including fingers that are independently movable along a second axis, substantially perpendicular to the first axis for picking and placing the pickface.

Abstract: A storage and retrieval system including a storage structure having storage shelves, each storage shelf having slats for supporting stored items where the slats are spaced apart from each other by a predetermined distance, an autonomous transport vehicle including at least one sensor configured to sense each of the slats and output a signal indicating when a slat is sensed, and a controller for verifying a location of the autonomous transport vehicle within the storage structure based on at least the output signal.

Abstract: An autonomous transport vehicle including a frame having a longitudinal axis extending from a front of the frame to a back of the frame, at least one first guide member mounted on one side of the frame and having a first guide member frame of reference, and at least one second guide member mounted to an opposite side of the frame than the at least one first guide member and having a second guide member frame of reference, wherein the first and second guide members are asymmetrically compliant guide members so that a stiffness of the at least one first guide member in response to a force in a predetermined direction relative to the first guide member frame of reference is different than a stiffness of the at least second guide member in response to the force in the predetermined direction relative to the second guide member frame of reference.

Abstract: A pickface builder for a storage and retrieval system for storing goods units and having an in-feed conveyor and a picking device, each goods unit holding at least one product package therein, the pickface builder including a frame, a pusher member movably coupled to the frame, and a snugger member movably coupled to the frame, wherein the pickface builder is configured to receive goods units from the in-feed conveyor and the pusher member and snugger member are movable at least in a direction transverse to a direction of goods unit travel on the in-feed conveyor and configured to form the goods units into a pickface picked by the picking device as a unit and having a predetermined reference datum relating the pickface to a placement position of goods units forming the pickface along a storage surface of the storage and retrieval system.

Abstract: An autonomous transport vehicle including a transfer arm including at least one finger and a movable finger support member, at least one sensor configured to detect movement of the at least one finger, the at least one sensor having a registration member and a detection member where one of the registration member and detection member is mounted to each of the at least one finger so as to be movable with a respective one of the at least one finger and the other one of the registration member and detection member is stationary relative to the at least one finger, and a controller in communication with the at least one sensor, the controller being configured to determine a position of the at least one finger along the second direction based on a proximity of the registration member relative to the detection member.

Abstract: A maintenance access system for a storage and retrieval system having a storage and retrieval space and automated transport vehicles disposed in the space. The system includes at least one maintenance access control unit associated with a portion of the space, at least one barrier in the space and defining a boundary of the portion of the space and configured to substantially prevent the passage of the vehicles past the at least one barrier, and a controller connected to the control unit, the controller being configured to receive a signal from the at least one control unit for isolating the portion of the space associated with the at least one control unit, where the controller in response to the signal closes the at least one barrier isolating the portion of the space and effects the removal from or shutting down of vehicles within the portion of the space.

Abstract: 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.

Abstract: A warehousing system for storing and retrieving goods disposed in containers is provided. The system includes a multilevel storage array including an array of storage shelves for holding containers thereon, at least one substantially continuous lift for transporting containers to and from at least one level of the storage array, at least one transport vehicle located on the at least one level and configured to traverse a transport area transporting containers between the at least one continuous lift and container storage locations so that the at least one continuous lift communicates non-deterministically, via the transport vehicle, with storage locations of each of the storage shelves on the at least one level, an infeed transport system linked to the at least one continuous lift, and an order fulfillment station for generating order containers corresponding to customer orders where the order containers are entered onto the storage shelves of the storage array.

Abstract: Methods and apparatus for selecting and combining packages in an outbound container by employing autonomous transfer and transport vehicles which move on a network of roadways to carry a plurality of individual cases each containing the same kind of product from a loading station and to a destination station where individual packages are combined in the outbound container. The travel of each vehicle through the roadway network is computer controlled, and each vehicle includes means for automatically loading and unloading packages from predetermined locations on the network.

Abstract: A storage and retrieval system including a vertical array of storage levels, each storage level having storage locations, a multilevel vertical conveyor system configured to transport the uncontained case units to and from the vertical array of storage levels, each storage level being configured to receive uncontained case units from the multilevel vertical conveyor system, at least one autonomous transport confined to each storage level, the at least one autonomous transport being configured to transport the uncontained case units between respective storage locations and the multilevel vertical conveyor system, and a controller configured to effect operation of the multilevel vertical conveyor system and at least one autonomous transport for assembling orders of uncontained case units of different types without moving bundles of the same uncontained case unit type throughout the storage and retrieval system.

Abstract: A transport system for a storage and retrieval system having an array of storage levels, each storage level having respective storage areas, the transport system including a vertical conveyor having a frame and support shelves movably coupled to the frame, each support shelf being configured to hold one or more uncontained case units in predetermined areas of the support shelf, and transfer vehicles disposed on respective ones of the storage levels, the vertical conveyor having a conveyor to transfer vehicle interface configured to transfer the uncontained case units substantially directly between the support shelves and the transfer vehicles for transport to the storage areas in substantially one transfer vehicle picking operation.

Abstract: An autonomous transport vehicle for transferring case units to and from predefined storage areas in an automated case unit storage system, the automated case unit storage system including an array of multilevel storage racks with picking aisles passing therebetween and at least one multilevel vertical conveyor having movable shelves, the autonomous transport vehicle including a frame configured to traverse the picking aisles and a transfer deck connecting the picking aisles to the at least one multilevel vertical conveyor for transferring case units between the predefined storage areas and the at least one multilevel vertical conveyor, and a controller connected to the frame, the controller being configured to effect movement of the autonomous transport vehicle through the picking aisles for accessing each storage area within a respective level of the array of multilevel storage racks and each shelf of the at least one multilevel vertical conveyor.

Abstract: A storage and retrieval system including a vertical array of storage levels, each storage level having, picking aisles, storage locations, disposed within the picking aisles, and at least one transfer deck providing access to the picking aisles, a multilevel vertical conveyor system configured to transport the uncontained case units to and from the vertical array of storage levels, each storage level being configured to receive uncontained case units from the multilevel vertical conveyor system, at least one autonomous transport located on each storage level for transporting the uncontained case units between respective storage locations and the multilevel vertical conveyor system, and a controller configured to create a primary access path through the transfer decks and picking aisles to a predetermined one of the storage locations and at least one secondary access path to the predetermined one of the storage locations when the primary path is impassible.

Abstract: A warehouse storage and retrieval system including an array of multilevel storage racks having at least one transfer deck, picking isles and storage areas disposed along picking isles, the storage areas being configured to hold differing loads, and a controller including a management module configured to variably size the storage areas of the array of multilevel storage rack modules and assign each of the variably sized storage areas to a corresponding one of the differing loads, wherein the storage and retrieval system is arranged to transport the differing loads for placement in the variably sized storage areas assigned by the controller.

Abstract: Methods and apparatus for selecting and combining items in an outbound container through the use of autonomous vehicles, each of which includes means for automatically loading and unloading a payload, to perform both transfer and transport functions in moving containers of items within a workspace via a network of roadways. Under computer control, said autonomous vehicles transfer and transport case containers of item units between incoming receiving stations, intermediate storage locations, and outgoing order-assembly stations where entire containers or individual item units are combined in the outbound container.