RACK PROCESSING SYSTEM, RACK CONVEYANCE CONTROL SYSTEM, AND RACK CONVEYANCE CONTROL METHOD

1 . A rack processing system comprising:

an importer configured to import a conveyance rack conveyed by one or more carriers configured to convey the conveyance rack, the conveyance rack including a plurality of storage sections;

a rack conveyor configured to convey the conveyance rack imported by the importer;

a retrieving device configured to retrieve a container from a storage section of the conveyance rack imported by the importer;

a container conveyor configured to convey the container retrieved by the retrieving device; and

a returning device configured to return the container to the conveyance rack conveyed by the rack conveyor.

2 . The rack processing system according to claim 1 , wherein

the rack conveyor conveys a plurality of conveyance racks at a first conveyance speed, and

the container conveyor conveys a plurality of containers along a picking lane at a second conveyance speed.

3 . The rack processing system according to claim 1 , wherein the retrieving device retrieves a container from a designated storage section of a conveyance rack having a plurality of storage sections with different heights and supplies the container to the container conveyor.

4 . The rack processing system according to claim 2 , wherein the retrieving device retrieves a container from a designated storage section of a conveyance rack having a plurality of storage sections with different heights and supplies the container to the container conveyor.

5 . The rack processing system according to claim 1 , comprising a control system configured to transmit a retrieval control signal for retrieving a container from a storage section of a conveyance rack to the retrieving device and transmit a return control signal for returning a container to a storage section of a conveyance rack to the returning device.

6 . The rack processing system according to claim 2 , comprising a control system configured to transmit a retrieval control signal for retrieving a container from a storage section of a conveyance rack to the retrieving device and transmit a return control signal for returning a container to a storage section of a conveyance rack to the returning device.

7 . The rack processing system according to claim 3 , comprising a control system configured to transmit a retrieval control signal for retrieving a container from a storage section of a conveyance rack to the retrieving device and transmit a return control signal for returning a container to a storage section of a conveyance rack to the returning device.

8 . The rack processing system according to claim 4 , comprising a control system configured to transmit a retrieval control signal for retrieving a container from a storage section of a conveyance rack to the retrieving device and transmit a return control signal for returning a container to a storage section of a conveyance rack to the returning device.

9 . The rack processing system according to claim 5 , wherein

the control system transmits, to the carrier, a first conveyance control signal for conveying a conveyance rack from a rack storage area to a first designated position and a second conveyance control signal for conveying a conveyance rack from a second designated position to the rack storage area, and

the rack conveyor imports a conveyance rack conveyed to the first designated position and releases the conveyance rack to the second designated position.

10 . A rack conveyance control system comprising:

a first control device configured to output, to one or more carriers configured to convey a conveyance rack having a plurality of storage sections, a first conveyance control signal for causing the one or more carriers to convey a conveyance rack from a rack storage area to a first designated position and output, to the one or more carriers, a second conveyance control signal for causing the one or more carriers to convey a conveyance rack from a second designated position to the rack storage area; and

a second control device configured to output, to a container processing system, an import-export control signal for causing the container processing system to import a conveyance rack arranged at the first designated position, retrieve a container from a storage section of the imported conveyance rack, convey a plurality of conveyance racks and a plurality of containers separately, return the containers to the storage sections of the conveyed conveyance racks, and release the conveyance racks to which the containers have been returned.

11 . A rack conveyance control method, comprising:

outputting, to one or more carriers configured to convey a conveyance rack having a plurality of storage sections, a first conveyance control signal for causing the one or more carriers to convey a designated conveyance rack from a rack storage area to a first designated position and outputting, to the one or more carriers, a second conveyance control signal for causing the one or more carriers to convey a designated conveyance rack from a second designated position to the rack storage area; and

outputting, to a container processing system configured to import a conveyance rack arranged at the first designated position and release the conveyance rack to the second designated position, a retrieval control signal for causing the container processing system to retrieve a designated container from a designated storage section of a designated conveyance rack and output, to the container processing system, a return control signal for causing the container processing system to return a designated container to a designated storage section of a designated conveyance rack.