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  "abstract": "A goods loading or unloading control method is applicable to a goods loading or unloading device. The goods loading or unloading device includes a storage unit. The storage unit is provided with a goods outlet and a roller conveyor. The roller conveyor has an outer contour surface configured for rolling contact with goods in the storage unit. The roller conveyor is configured to rotate about a rotation axis thereof. The method includes: receiving a goods loading or unloading instruction; and controlling a rotation state of the roller conveyor according to the goods loading or unloading instruction, so as to convey goods outside the storage unit to outside of the goods outlet through the storage unit.",
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  "title": "Goods loading or unloading control method, control device, goods loading or unloading device, and warehousing system",
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