Abstract: A mobile, in particular autonomous, sorting unit, for transporting cargo to be transported in a logistics area, a production area or the like, having a cargo receiving unit which has a plurality of cargo carriers for receiving a plurality of cargo items, the cargo receiving unit being configured for autonomous discharging of the cargo items in any desired order by moving the cargo carriers to be unloaded to a discharging position. The invention further relates to a respective method for delivering cargo items to at least two different stations in a logistics area, a production area or the like with an autonomous mobile sorting unit.

Abstract: A block stacking arrangement having multiple container stacking slots and a loading space arranged below the container stacking slots in a direction of gravity, a pass-through opening being arranged between each container stacking slot and the loading space, via which a container can be moved out of the loading space into the container stacking slot or from the container stacking slot into the loading space and which has a holding device. Good flexibility of the block stacking arrangement is achieved at least because at least two pass-through openings have different sizes.

Abstract: In a case where the target article is transported between areas, a management control unit executes path setting control, a first area control unit executes first area transport control, a connection control unit executes connecting transport control, and a second area control unit executes second area transport control. With the path setting control, an overall path from a departure point to a destination point is set on the basis of transportation status information of a first area transport facility, a second area transport facility, and a plurality of connecting transport facilities. With the second area transport control, a partial path from a second transfer position of a target connecting transport facility to the destination point is set on the basis of transportation status information of the second area transport facility.

Abstract: A method for retrieving an inventory item based on a handling robot, where the handling robot includes: a storage frame; and a material handling device installed on the storage frame, and including a telescopic arm and a manipulator installed to the telescopic arm; and the method for retrieving an inventory item includes: driving, by the telescopic arm, the manipulator to extend to a preset position of warehouse shelf along a preset horizontal reference line; loading, by the manipulator that is remained on the reference line, the inventory item located in the preset position; driving, by the telescopic arm, the manipulator loaded with the inventory item to move to the storage frame along the reference line; and unloading, by the manipulator that is remained on the reference line, the inventory item to the storage frame.

Abstract: A container accessing station for accessing a storage container of an automated storage and retrieval system includes a housing and a vehicle lift. The housing includes an access opening, and a base opening. A human and/or robot may access contents of the storage container through the access opening. The storage container can enter the container accessing station to be presented at the access opening through the base opening. The vehicle lift is arranged to lift a delivery vehicle carrying the storage container on an upper surface of the delivery vehicle from a pickup level below the base opening up to an accessing level where the storage container is presented to be accessed through the access opening by the human and/or robot while the storage container is still being carried by the delivery vehicle.

Abstract: Systems, methods, non-transitory processor-readable storage media, and devices of the various embodiments enable a vehicle vending machine to retrieve a vehicle from a storage location and deliver the vehicle to a delivery bay for delivery to a customer. Various embodiments may include a vehicle vending machine including a tower, a robotic carrier, a corridor extending from the tower, a plurality of delivery bays positioned along the corridor, a customer interaction kiosk, and/or a video system. In various embodiments, the vehicle vending machine may further include a lighting system.

Abstract: A pair of drive wheels are disposed in a middle region of a travel body section in a body length direction and are separated from each other in a body width direction. A first drive source is disposed on a first side in the body length direction relative to a width direction reference line and a first side in a body width direction relative to a length direction reference line in top-down view. A second drive source is disposed on a second side in the body length direction relative to the width direction reference line and a second side in the body width direction relative to the length direction reference line in top-down view.

Abstract: Warehouse automation and methods of automatically sorting and sequencing items can be implemented to streamline and expedite order fulfillment and store replenishment processes in a cost-effective manner. Some embodiments described herein include: (i) picking or retrieving items from an inventory storage area, (ii) decanting individual items and placing them on carriers of a high-speed sorting and conveyance system, and (iii) final sortation as per customer orders. In some embodiments, the high-speed sorting and conveyance system includes multiple shuttles that each carry an individual item to a designated final order sortation system.

Abstract: An automated storage and retrieval system includes a grid-based rail structure and a plurality of remotely operated delivery vehicles arranged to operate on the grid-based rail structure. The automated storage and retrieval system includes a locking device arranged in a zone of the grid-based rail structure where a human and/or a robotic operator is permitted to interact with the remotely operated vehicle or contents of a storage container that the remotely operated vehicle is carrying. The locking device is arranged to latch to a motorized vehicle body of the remotely operated delivery vehicle, and to lock the remotely operated delivery vehicle against accidental displacement prior to interaction with the human and/or robotic operator. The locking device is arranged to unlock the remotely operated delivery vehicle once interaction with the human and/or robotic operator is no longer required.

Abstract: A multi-tiered automated parcel sortation system is utilized to sort parcels according to a common destination. A first tier includes an automated sorter configured to transport parcels from a source location to a release destination. A second tier includes accumulation containers each associated with a shipping destination, and the release destination within the first tier is a positioned directly above the accumulation container associated with the shipping destination of the parcel. Once transported to the release destination, a parcel is released into the accumulation container, and once the accumulation container is filled, the accumulation of parcels within the container is released into a third tier, which may include conveyors or autonomous guided vehicles with transport containers. In the third tier, the parcels are transported away for further processing.

Abstract: The operation of container handling vehicles and remotely operated specialized container handling vehicles are controlled by a method such that total elapsed time or waiting time cost for transferring specified storage containers between them is minimal or optimal. The specialized container handling vehicles are operating at a level below an automated storage and retrieval system having a framework structure defining a storage grid for storing storage containers in grid cells. The storage containers are stored and retrieved by container handling vehicles running on top of the storage grid.

Abstract: The high-position robot includes a pallet fork; an image collector and a distance sensor are arranged on the pallet fork; the image collector is configured to collect positioning information provided on a target stock container and obtain image data representing a positional relationship between the pallet fork and a projection image of the positioning information on a specified plane; and the distance sensor is configured to measure a distance between the pallet fork and a target stock container and obtain distance data. After a pallet fork lifts a storage container to be placed up to a same height as a target layer of a target stock container, adjusting and controlling a positional relationship between the pallet fork and a projection image of positioning information on a specified plane; and adjusting and controlling a distance between the pallet fork and the target stock container according to distance data.

Abstract: An autonomous rover including a frame having a first end and a second end longitudinally spaced from the first end and forming a payload bay, the payload bay being sized to support a pickface, a common active registration surface configured to engage the pickface, and a drive section connected to the common active registration surface, the drive section being configured to variably position the common active registration surface relative to at least one storage shelf of an automated storage and retrieval system to effect placement of the pickface on the storage shelf so that pickfaces are substantially continuously arranged along the at least one storage shelf with a predetermined storage spacing between the pickfaces.

Abstract: An automated storage and retrieval system includes a storage grid for storage of storage containers and a delivery system for transport of said storage containers between a delivery port of the storage grid and an access point of the delivery system. The access point is adapted for handling of items held in the storage containers by a robotic operator or human operator.

Abstract: In a method for operating a system, and a system, the system includes a mobile part drivable on a driving surface, and a load carrier. The mobile part includes a radar sensor connected to a control of the mobile part. The frequency spectrum of an intermediate frequency signal is determined, and, using pattern recognition, the frequency spectrum is compared with stored pattern samples, and the result of the comparison is conveyed to the control. The control actuates actuators such as a drive and/or steering unit of the mobile part as a function of the result of the comparison.

Abstract: An automated storage and retrieval system includes an automated storage and retrieval grid, a container accessing station, a delivery rail system, and a delivery vehicle operating on the delivery rail system.

Abstract: A storage setup and method for robotic delivery and retrieval of crates from shelving blocks are disclosed. At least one shelving block in the setup comprises non-uniformly spaced apart storage surfaces. The storage surfaces are accessible to lift-robots. A computerized control system is configured to differentiate between storage locations based on which crate sizes from at least two different ranges of crate sizes a storage location can store. The storage may be automatically optimized by routing robots to store crates in storage locations sized in correlation with the size of the crate to be stored.

Abstract: Disclosed is a smart device housing configured to fixably attach to a beverage vessel having a domed surface at a distal end, the domed surface adjacent a wall terminating at a lip, the smart device housing having an exterior configured as a transformable shape enabling a locking fit between the lip and the domed surface of the beverage vessel. Also disclosed is a system wherein a smart device has at least one proximity, image or distance sensor having a beam of detection with a path, the sensor located and directed such the beam of detection covers a location where a coupler can be attached to the beverage vessel, the smart device configured to determine whether the coupler is attached to the beverage vessel by measuring whether the path is obstructed by the coupler. Also disclosed is a method of determining the fill status of a beverage container.

Abstract: A conveyor system includes a first conveyor line to convey an article in a first direction, a second conveyor line parallel or substantially parallel with the first conveyor line to convey the article in a second direction that is a direction opposite to the first direction, a backup line parallel or substantially parallel with the first conveyor line and the second conveyor line and able to change states between a state of conveying the article in the first direction and a state of conveying the article in the second direction, first connecting lines to convey the article between the first conveyor line and the backup line, and second connecting lines to convey the article between the second conveyor line and the backup line.

Abstract: A transport vehicle for transporting payloads is provided. The transport vehicle includes primary and secondary chassis, and first and second sets of wheels for supporting the respective primary and secondary chassis. A guide arrangement is mounted on the primary chassis and the secondary chassis is slidably mounted on the guide arrangement. The primary and secondary chassis are parallel and spaced apart from each other. A payload lifting arrangement is positioned on a top surface of the secondary chassis to lift a payload. When a weight of the payload is below or equal to a threshold weight, the weight is distributed across the second set of wheels by way of the suspension arrangement. When the weight of the payload exceeds the threshold weight, the weight is distributed across the first and second sets of wheels by way of the guide arrangement and the suspension arrangement, respectively.

Abstract: A load handling device that is installed between a supply position and a loading position, and configured to load at the loading position the load that has been fed from the supply position. The load handling device includes a base platform, a lifting unit that is movable up and down relative to the base platform, a pair of forks that is configured to support a bottom surface of the load that has been fed from the supply position, a fork distance adjusting mechanism that is configured to adjust a distance between the pair of forks in accordance with a size of the load, and a fork advancing/retracting mechanism that is configured to cause the pair of forks to advance to or retract from the loading position.

Abstract: A system for packaging parcels includes a plurality of parcel packaging stations associated with varying packaging volume capacities. The system further includes a tote delivery conveyor configured to provide transport links to the plurality of parcel packaging stations, for transporting thereto, a tote containing a batch of parcels sorted to a common destination. The system is configured to select a parcel packaging station for the batch of parcels, from the plurality of parcel packaging stations, based on an overall volume of parcels being sorted to that destination. The tote delivery conveyor is controllable to transport the tote containing the batch of parcels to the selected parcel packaging station.

Abstract: Method and apparatus for identifying a relative rotation between a rotary unit and a base unit in a drive unit, receiving a command that changes the relative rotation when the command is executed by the drive unit, determining that rotating at least one of the base unit or the rotary unit in a first direction in response to the command results in the relative rotation exceeding a maximum rotation value, and rotating at least one of the base unit or the rotary unit in a second direction opposite the first direction while executing the command. In one example, the drive unit may include cables that transfer power and control signals from the base unit to the rotary unit. Determining whether executing the command results in the relative rotation exceeding the maximum rotation value can ensure the cables are not damaged.

Abstract: A remotely operated vehicle assembly for an automated storage and retrieval system moves a product item between a storage container stored in an automated storage and retrieval grid configured to store a plurality of stacks of storage containers, and target containers. The remotely operated vehicle assembly includes a first vehicle including a vehicle body and a wheel arrangement connected to the vehicle body configured to move the remotely operated vehicle along a rail system of the automated storage and retrieval system; and a picking system for moving the product item. The first vehicle includes a container lifting device configured to carry a first target container. The vehicle assembly further includes a second vehicle including a vehicle body and a wheel arrangement connected to the vehicle body configured to move the remotely operated vehicle along a rail system of the automated storage and retrieval system.

Abstract: A first storage section includes a first support portion that supports an article and a movable support portion that movably supports the first support portion in the path width direction. A second storage section includes a second support portion whose position in a path width direction relative to a movement path is fixed, and supports the article. A space occupied by the article in a state of being supported by the second support portion is a target space, a position at which the first support portion overlaps the target space in an up-down view along an up-down direction is an overlapping position, and a position that is adjacent to a first side relative to the overlapping position and at which the first support portion does not overlap the target space in the up-down view is a non-overlapping position.

Abstract: A stocker includes a transporter that travels through a traveling space within a stocker and transports an article, a pair of rails that flank the traveling space extend in parallel or substantially in parallel in a horizontal direction, platforms movable along the pair of rails, and a housing provided on a stocker outer side of a door that separates an inside and an outside of the stocker, and that houses the platforms. The pair of rails extend from the inside of the stocker to the housing through an opening directly under the door. At least one of the platforms includes a fence in an upright standing manner and an upper end of the fence is higher than an upper end of the opening. The platform that includes the fence extends across the inside of the stocker and the outside of the stocker via the opening while the fence is arranged on a stocker inner side.

Abstract: An automated order fulfillment system is disclosed having different temperature zones and robots and containers capable of and/or configured to work in these different temperature zones.

Abstract: In one embodiment, an inventory storage module has a first conveyor segment, a second conveyor segments offset from the first segment along a vertical direction, a first vertical lift at a first end of the module, and a second vertical lift at a second end of the module, which together define a movement path that is elongate along a longitudinal direction between the first and second ends. The storage module can translate inventory storage containers around the movement path until a desired one of the inventory storage containers is presented at one of the first end and the second end. In another embodiment, a plurality of instances of the storage module are arranged in a vertical stack of independently controllable storage modules.

Abstract: A robotic shuttle system includes a rack system and one or more shuttles. The rack system includes a rack and a shuttle frame. The rack has storage locations for containers containing items. The shuttle frame has rails disposed along the rack. The shuttle includes a powertrain, container transfer mechanism, and a robot arm. The power train is configured to move the shuttle along the rails of the rack and on a surface outside of the rack system. The container transfer mechanism is configured to transfer the containers between the rack and the shuttle. The robot arm extends from the shuttle to transfer the items between one of the containers on the shuttle and a container in a container holder of the shuttle.

Abstract: Systems and methods are provided herein for mitigating contentions between mobile drive units (MDUs) within a workspace. A schedule may be generated that identifies execution steps associated with respective tasks to be performed by each of a plurality of mobile drive units (MDUs) within the workspace. A contention related to a first execution step associated with a first mobile drive unit (MDU) and a second execution step associated with a second MDU may be identified. The schedule may be altered to include an indication of the contention. It may be determined that the first MDU is at the location of the contention. Accordingly, the contended space may be reserved for the first MDU, and the schedule may be modified to restrict the second MDU from executing the second execution step until the first MDU has completed the execution of the first execution step.

Abstract: A method for monitoring a conveyor system transporting separated piece goods is disclosed. The conveyor system has a display device extending in sections along a transport path for the piece goods. The display device is designed to display at least one optical signal at different points of the transport path, and the display device is coupled to a control device. The control device determines information relating to the relationship of the actual conveyance of the piece good along the transport path with respect to the predetermined conveyance of the piece good along the transport path. An optical signal running along parallel to a piece good transported along the at least one transport path is displayed by the display device. The optical signal indicates the relationship of the actual conveyance of the piece good with respect to the predetermined conveyance of the piece good.

Abstract: An automated sample inspection system is provided with a conveyance line for conveying sample carriers; an empty sample carrier line for conveying empty sample carriers; and a buffer line for temporarily holding empty sample carriers supplied from the empty sample carrier line to the conveyance line. According to the depletion status of the buffer line of each processing system, and the depletion status of other processing systems adjacent to each processing system, the number of empty sample carriers to be conveyed from the empty sample carrier line to the buffer line of each processing system, and the number of empty sample carriers to be conveyed from the empty sample carrier line of each processing system to the empty sample carrier line of another adjacent processing system are determined. Consequently, delays in the processes in the system can be suppressed due to the suppression of the depletion of sample carriers.

Abstract: Apparatuses and methods are provided herein useful in retail store inventory storage and retrieval. Some embodiments provide systems, comprising: a rack system positioned above a dropdown ceiling and extending over the sales floor, and comprising: a plurality of racks, a rail system and the plurality of access passages; a plurality of unmanned vehicles; a plurality of access stations, wherein the access stations physically cooperate with one of the access passages; each rack comprises storage cells to receive a reusable tote; and wherein the central control circuit is configured to receive a request for a first product, identify a first access station, access the inventory tracking system to identify a first storage cell in which the first product is stored, identify an available unmanned vehicle, and communicate to the unmanned vehicle directing the unmanned vehicle to retrieve the tote and transport the tote to the first access station.

Abstract: An order fulfillment system is disclosed including a storage structure and mobile robots capable of moving vertically and horizontally within the storage structure to transfer product totes to and from storage locations within the storage structure. The mobile robots may move along a track system including horizontal rails for horizontal travel of the mobile robot and vertical towers for vertical travel of the mobile robot. The vertical towers include two opposed pairs of tracks having U-shaped slots. The order fulfillment system may further comprise a mobile robot configured to travel vertically and horizontally along the track system to transfer product containers to and from the storage locations in the storage structure, and horizontally about a horizontal deck spanning the storage aisles. The mobile robot includes four wheel assemblies, each assembly including a pair of wheels mounted on ends of a climbing link.

Abstract: A method for operating an automated storage and retrieval system includes transferring a first item storage container from an aisle to a first region of a first storage location, positioning a second item storage container in the aisle proximate the first item storage container, interlocking the second item storage container to the first item storage container by engaging a releasable coupling structure extending there between, and applying, in a first direction transverse to the aisle, a force to the second item storage container sufficient in magnitude and duration to cause the first item storage container to occupy the second region of the first storage location and the second item storage container to occupy the first region of the first storage location, whereby the first and second item storage containers remain interlocked while in the first storage location.

Abstract: A method for collecting products listed in an order in a product collecting system having a plurality of modules, the method including: assigning the order to a module, allocating a product listed in the order to the order if the product is already available in the module, allocating a product to the order from another module if the product of the “slow-moving” type is not already available in the module whereas it is available in the other module, allocating a product to the order from a pallet warehouse if the product of the “slow-moving” type is not already available in the module nor in another module, and releasing the order and loading the products onto a collecting carrier when all the products listed in the order have been collected in the module.

Abstract: A method transfers unit loads to storage channels for storage by conveying the unit loads to the storage channels using a unit load receiving device movable along the storage channels in an x-direction and a transporter extendable into the storage channel in a z-direction. The transporter includes outer transport elements in opposite end sections and optionally an in-between inner transport element. The unit load is moved from the unit load receiving device into the storage channel up to an intermediate position using one transport element by moving the transporter in a first direction. The transporter is then moved to a second direction to position the other transport element behind a unit load side wall facing the unit load receiving device. The unit load is finally shifted in the storage channel from the intermediate to the second depth position using the other transport element by moving the transporter.

Abstract: A method for placing packets into and/or out of storage with or without loading aids into/from a particular storage rack aisle of a storage rack, wherein a distribution path conveys packets into storage and/or out of storage, wherein the distribution path comprises adjacent introducing and/or discharging devices which lead to incoming and/or outgoing paths which each supply goods to a storage rack aisle or remove goods therefrom. If the incoming/outgoing path of a destination storage rack aisle is overloaded, the packet is supplied to another incoming/outgoing path of another intermediate storage rack aisle, wherein a transfer takes place from the intermediate storage rack aisle to the destination storage rack aisle or vice-versa within the storage rack.

Abstract: Described herein is system in which separate networks are operated on behalf of system components associated within an inventory system. Mobile drive units may receive initial instructions from a central authority and may identify a number of system components relevant to the provided instructions. The mobile drive unit may be configured to traverse to locations associated with the identified system components. As the mobile drive unit traverses the inventory floor, it may connect to the separate networks that it comes into contact with. Upon connecting to a network associated with a system component relevant to its set of instructions, the mobile drive unit may provide instructions to the system component to cause it to execute an action. In some embodiments, the mobile drive unit may connect to a system component in order to perform a route guidance algorithm and/or collision avoidance algorithm.

Abstract: A method for fetching a target bin stored in a storage system (100), wherein the storage system includes a three-dimensional storage grid containing a plurality of bins stacked in vertical stacks, supporting rails (13) on the grid structure, and a plurality of vehicles (1), controllably arranged to move individually on the supporting rails. The method is performed by a control device in the system and comprises controlling at least one non-target vehicle to operate as intermediate storage for a bin located vertically above the target bin (5); controlling a target vehicle to pick up the target bin, and controlling the at least one non-target vehicle and the target vehicle to be positioned adjacent to each other in a linear manner on the supporting rails. A corresponding storage system has also been disclosed.

Abstract: An automatic guided vehicle comprising a fork carriage with a fork, a propulsion drive system, a sensor to acquire position data of objects located in a detection field and a computer. The vehicle comprises a reference member located in the detection field of the sensor rigidly secured to a common rigid frame with the sensor. The sensor periodically acquires control position data indicative of a position of the reference member. The computer periodically compares the control position data with a reference value stored in a memory.

Abstract: A transport vehicle controller causes a travel speed of the corresponding one of the plurality of article transport vehicles to which the transport vehicle controller is provided to be reduced based on position information of corresponding one of the plurality of article transport vehicles to which the transport vehicle controller is provided and the position information on another of the plurality of article transport vehicles if a separation distance between the corresponding one of the plurality of article transport vehicles to which the transport vehicle controller is provided and the another of the plurality of article transport vehicles is less than, or equal to, a set separation distance.

Abstract: Systems, methods, apparatus, and computer program products are provided for initiating shipment of and payment for shipping a parcel. For example, in one embodiment, a customer/user can receive a message on a user device from a carrier that includes an authorization code for shipping a parcel. After the customer/user ships the parcel, the carrier can charge a variety of accounts for the shipping charges, including a wireless services provider associated with the user device. In another embodiment, the customer/user can interact with a kiosk to ship the parcel. In this embodiment, the carrier can also charge a variety of accounts for the shipping charges, including a wireless services provider.

Abstract: The invention provides a system for storing product containers. The control system of the system comprises a central control unit to determine a route for a carriage along a part of a guide system and to send a control signal for the route in question to the carriage control unit of the carriage. The guide system is provided with unique identification signs at at least some of the junctions. Each carriage is provided with a reader for reading an identification sign and communicating said identification sign to the carriage control unit. The central control unit is designed to mark certain junctions as “blocked” under certain circumstances and to generate a list of unique identification signs associated with the “blocked” junctions. Each carriage control unit is designed to store said list in a database of the carriage control unit and to cause the carriage to stop if the identification sign is on the list as stored in the database of the carriage control unit.

Abstract: A storage rack (30) for use in an order-picking system (100) includes a plurality of rack planes (44) being arranged on top of each other, which respectively comprise a plurality of rack compartments (46, 48) being arranged side-by-side, a filling side (34) and a removal side (32), being different to the filling side (34), wherein the removal side preferably is arranged oppositely, wherein the rack compartments (46, 48) are filled with articles (66-70) at the filling side (34), wherein the articles in term are removed at the removal side (32) for the purpose of order-picking, and a plurality of serving units (52), each of which comprises at least a display element (54), a transmitter (62) and a receiver (64) and is at least arranged such at the filling side (34) that each of the rack compartments (46, 48) is assigned to one serving unit (52).

Abstract: Order allocation techniques pertaining to stops that a container makes in the process of fulfilling a customer order is disclosed. In one embodiment, this is accomplished by first identifying a pod that stocks the largest number of different items in a customer order. Then, a second pod is identified that stocks the largest number of remaining items in the customer order. The collection of pods defines a container path through the distribution center.

Abstract: This disclosure describes systems and methods for automatically verifying the processing of items within a materials handling facility. In many instances one or more items are processed in a materials handling facility and an agent processing the item must place the item in a designated container so that the item can be routed to the appropriate destination. By using image capture and analysis, the placement of the item in the appropriate container can be verified without requiring the agent to scan or otherwise identify the container into which the item was placed.

Abstract: An article processing facility includes a transport control device which controls operation of at least one article transport device, management control device which transmits to the transport control device a transport command for transporting the article from a transport origin to a transport destination based on transport data with identifying information, and a display control which causes a display device to display transport-data-associated information. The management control device manages and stores attribute information of the article such that the attribute information is associated with identifying information which identifies the transport data.

Abstract: A system, method, and software are for moving inventory items to an unloading station in response to a fulfillment order. An input device is used to enter identification information about the inventory items. At a loading station, the inventory items are received and loaded into holders. The holders are then moved to storage area. A controller is configured for creating and storing a first association between the entered identification information and each of the holders in which each of the inventory items is placed. A selector and transporter are responsive to the fulfillment order and the first association, and are configured to select a holder which holds the inventory items corresponding to the fulfillment order, and configured to transport the holder from the storage area to the unloading station.

Abstract: An article transport system includes: a first transport device configured to transport an article within a first article storage area or a second article storage area; a second transport device configured to transport the article between the first article storage area and the second article storage area; an alternative power supplier configured to supply the second transport device with first power output by a first power part in the first transport device; and a power switcher configured to switch a power source for the second transport device from a second power part in the second transport device to the alternative power supplier, based on operation of the first transport device.