| 摘要 |
An electronic lock security system including a control console and several remote secured areas, the entrance to each of the secured areas being controlled by an electronic lock mechanism responsive to a digital coded key. A key code is stored in each lock mechanism and compared with the key code on a digital coded key. If correspondence exists, entrance to the secured area is granted. The lock mechanism stored key code can be changed in response to an order code imprinted directly on the key. This obviates the requirement of wired or wireless wave communications links between the control console and each of the remote secured areas. A further feature of the invention resides in the provision of apparatus for automatically changing the stored key code at each secured area after a variable predetermined time interval.
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