| 摘要 |
An access control system and device is provided which is capable of preventing, if the system operates, and then, a door, etc., is opened, the entry of a third party due to abuse of an opportunity of the opening. An access control system (1) includes: a reader/writer (30) for reading the identification information and measuring a signal state at a time of reading the identification information; an imaging device (50) for imaging periphery of the pass point; and an access control device (10), which judges whether or not an access is possible, based upon outputs of the reader/writer (30) and the imaging device (50). The access control device (10) judges whether or not the person has an access right about the wireless IC tag (20) on the basis of the unique ID, computes the position and movement state of the wireless tag holder (201) from the signal state established at the time of reading the unique ID, judges whether or not there is any wireless IC tag non-holder (202) from the image data output from the imaging device (50), and judges whether or not the pass point is placed in a pass permission state according to whether or not the person has a right to access the room, the position and movement state of the wireless IC tag holder (201), and whether or not there is any wireless IC tag non-holder (202).
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