| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a door security system using two-dimensional information, which a user can authenticate while moving, and to provide a control device for the door security system. <P>SOLUTION: The door security system 1A includes a photographing device 13 and an authenticating control device 400. The authenticating control device 400 controls a door 11 through the control device 100 and is connected to the photographing device 13 so as to communicate therewith. The photographing device 13 automatically tracks and photographs, using an auto-focusing function, the two-dimensional information printed on an authenticating card C1 hand-carried by a user H1 while moving. The authenticating control device 400 acquires image information captured, subjects the image information to image analysis to extract identification information from the two-dimensional information, and determines whether the security of the door should be released or not based on the extracted identification information. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
