An electronic device comprising: a first communication unit and a second communication unit ; a processor ; and a memory , wherein the memory includes instructions causing the processor to: receive first identification information for a door and first opening/closing state information of the door from a server through the first communication unit , receive second identification information for the door and second opening/closing state information of the door from the door through the second communication unit , compare the first identification information and the first opening/closing state information with the second identification information and the second opening/closing state information, generate first door state information including information on the electronic device involved in a change in an opening/closing state of the door when the first identification information and the second identification information are same, and the first opening/closing state information and the second opening/closing state information are same, and control the first communication unit to transmit the first door state information to the server . a first communication unit and a second communication unit ; a processor ; and a memory , wherein the memory includes instructions causing the processor to: receive first identification information for a door and first opening/closing state information of the door from a server through the first communication unit , receive second identification information for the door and second opening/closing state information of the door from the door through the second communication unit , compare the first identification information and the first opening/closing state information with the second identification information and the second opening/closing state information, generate first door state information including information on the electronic device involved in a change in an opening/closing state of the door when the first identification information and the second identification information are same, and the first opening/closing state information and the second opening/closing state information are same, and control the first communication unit to transmit the first door state information to the server . receive first identification information for a door and first opening/closing state information of the door from a server through the first communication unit , receive second identification information for the door and second opening/closing state information of the door from the door through the second communication unit , compare the first identification information and the first opening/closing state information with the second identification information and the second opening/closing state information, generate first door state information including information on the electronic device involved in a change in an opening/closing state of the door when the first identification information and the second identification information are same, and the first opening/closing state information and the second opening/closing state information are same, and control the first communication unit to transmit the first door state information to the server . <EOS>