The smart door is initiated. A smart door according to an embodiment of the present invention includes a door lock for locking or unlocking the smart door installed in a child care facility for childcare, a camera for photographing the front of the smart door, and, And a processor that recognizes a person included in the image captured by the camera and performs an operation corresponding to a group to which the recognized person belongs, wherein the group includes a group of children to be nurtured in the child care facility, the child care facility Including a group of caregivers who care for the child and a group of caregivers who send the child to or from the childcare facility.
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