Abstract: Various embodiments described herein relate to controlling an accumulation conveyor that comprises at least a first zone that is upstream of a second zone and the second zone that is upstream of a third zone. A second control module associated with the second zone receives a third feedback signal, indicating that a third sensor is blocked, from a third control module associated with the third zone. The second control module sets a second drive assembly associated with the second zone to a disengaged state, and receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article having an irregular boundary or a second article having a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.

Abstract: Various embodiments described herein relate to controlling an accumulation conveyor that comprises at least a first zone that is upstream of a second zone and the second zone that is upstream of a third zone. A second control module associated with the second zone receives a third feedback signal, indicating that a third sensor is blocked, from a third control module associated with the third zone. The second control module sets a second drive assembly associated with the second zone to a disengaged state, and receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article having an irregular boundary or a second article having a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.

Abstract: An order fulfillment system having a frame defining a compartment therein that extends between a first space and a second space, and a first door coupled to the frame. The first door is movable between an open position providing access to the compartment from the first space, and a closed position blocking access to the compartment from the first space. The system further includes a second door coupled to the frame, wherein the second door is movable between an open position providing access to the compartment from the second space, and a closed position blocking access to the compartment from the second space. The system is configured such that the compartment has greater fluid communication with the first space compared to the second space when the first door is in the closed position and the second door is in the closed position.

Abstract: Various embodiments described herein relate to controlling an accumulation conveyor that comprises at least a first zone that is upstream of a second zone and the second zone that is upstream of a third zone. A second control module associated with the second zone receives a third feedback signal, indicating that a third sensor is blocked, from a third control module associated with the third zone. The second control module sets a second drive assembly associated with the second zone to a disengaged state, and receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article having an irregular boundary or a second article having a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.

Abstract: Various embodiments described herein relate to controlling a conveyor that comprises at least a first zone that is upstream of a second zone. A second control module associated with the second zone receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article that has an irregular boundary or a second article that has a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.

Abstract: Various embodiments described herein relate to controlling a conveyor that comprises at least a first zone that is upstream of a second zone. A second control module associated with the second zone receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article that has an irregular boundary or a second article that has a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.

Abstract: Various embodiments described herein relate to controlling an accumulation conveyor that comprises at least a first zone that is upstream of a second zone and the second zone that is upstream of a third zone. A second control module associated with the second zone receives a third feedback signal, indicating that a third sensor is blocked, from a third control module associated with the third zone. The second control module sets a second drive assembly associated with the second zone to a disengaged state, and receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article having an irregular boundary or a second article having a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.

Abstract: Various embodiments described herein relate to controlling an accumulation conveyor that comprises at least a first zone that is upstream of a second zone and the second zone that is upstream of a third zone. A second control module associated with the second zone receives a third feedback signal, indicating that a third sensor is blocked, from a third control module associated with the third zone. The second control module sets a second drive assembly associated with the second zone to a disengaged state, and receives a first signal from a first control module associated with the first zone. The first signal indicates that one of a first article having an irregular boundary or a second article having a regular boundary exits from the first zone. The second control module controls the second drive assembly and a second brake assembly based on the indication by the first signal.