Access control system and access control method using the same

An access control method of a door operating device that communicates with a user terminal, the access control method may comprise determining a distance between the door operating device and the user terminal based on a received signal strength corresponding to a transmitted signal from at least on...

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Bibliographische Detailangaben
1. Verfasser:	Shin, Dong Mok
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CALCULATING CHECKING-DEVICES COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING GENERATING RANDOM NUMBERS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS
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Beschreibung
Zusammenfassung:	An access control method of a door operating device that communicates with a user terminal, the access control method may comprise determining a distance between the door operating device and the user terminal based on a received signal strength corresponding to a transmitted signal from at least one of the door operating device and the user terminal; determining whether the distance between the door operating device and the user terminal is within a first distance; establishing a communication connection between the door operating device and the user terminal when the distance between the door operating device and the user terminal is within the first distance; determining whether the distance between the door operating device and the user terminal is within a second distance; and obtaining open authentication information when the distance between the door operating device and the user terminal is within the second distance.