SMART COMMON ENTRANCE SYSTEM

The present invention relates to a smart common entrance system which allows a resident to issue a temporary common entrance access password and a QR code with time to a visitor through an app, thereby facilitating access of the visitor and minimizing a possibility at which a security method of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LEE WON HOON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CALCULATING CHECKING-DEVICES COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATING RANDOM NUMBERS HANDLING RECORD CARRIERS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS REGISTERING OR INDICATING THE WORKING OF MACHINES TELEPHONIC COMMUNICATION TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS
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