| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a digital key system which adjusts a time of a storage cabinet, clarifies a usage time and determines who is responsible for any problems. <P>SOLUTION: A digital key system includes: a digital lock 56 having a lock timer 64 attached to a storage cabinet 51; a digital key 1 having a key timer 44 used in common by a plurality of users to unlock the digital lock 56 and a history storage memory 42 so as to store a history of locking and unlocking the digital lock 56 in the history memory 42; and a digital key box 10 centrally storing and managing the digital key 1 and having history reading means 24 reading the history from the history memory 42, a key box timer 26, and personal authentication means 27. When the digital key 1 is stored and managed in the digital key box 10, a time of the key timer 44 is rewritten to the time of the key box timer 26 so as to enable the time of the key timer 44 of the digital key 1 to be accurate. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
