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公开(公告)号：US20210090364A1
公开(公告)日：2021-03-25
申请号：US16494457
申请日：2018-03-14
发明人： Hojung LEE , Myoung Soo YOU
摘要： Disclosed is a door lock device. The door lock device comprises: a communication unit for receiving location information of an electronic device and a key from the electronic device; a location information reception unit for receiving location information of the door lock device; a door lock unit having a locked state or a released state; and a control unit electrically connected with the communication unit, the location information reception unit, and the door lock unit, wherein the control unit determines a distance between the electronic device and the door lock device on the basis of the location information of the electronic device and the location information of the door lock device, and determines whether to release the door lock unit on the basis of information of the distance.
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