| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electronic key system in which crime prevention performance against injustice unlocking from the outdoor can be secured.SOLUTION: A manual locking operation monitoring part 18 monitors whether or not a building door 8 is manually lock-operated by a thumb turn 16 from the indoor side. A valid/invalid setting part 19 makes smart collation of all electronic keys 2 invalid when being locked manually by the thumb turn 16. By means of this, even if the electronic key 2 is forgotten within a communication area of smart collation in the neighborhood of a vestibule of the indoor for example, since smart collation by the electronic key 2 is not processed as established, the building door 8 is not unjustly unlocked even if a locking operation part 11 is operated by a third person from the outdoor.</p> |
