Electronic security system

Details Electronic security system Electronic security system

E - Fixed Constructions

05

B

E05B 49/02 (2006.01) G06F 7/04 (2006.01) G06K 5/00 (2006.01) G07B 15/00 (2006.01) G07C 9/00 (2006.01) H01H 47/00 (2006.01) H04L 9/08 (2006.01) H04L 9/32 (2006.01)

Patent

CA 2082649

An electronic security system includes an electronic lock mechanism (201) and an electronic key (101 and 104), each of which is provided with a microprocessor controller (501) and a memory (502) storing data including an ID code. The lock microprocessor (601) changes the ID code stored in its memory (602) upon the operation of the lock by a correct key. The key (101) can only be used to operate the lock once, and thereafter must be reprogrammed by a host computer with the updated ID code for the lock. The electronic lock operates a solenoid (209) which retracts a bolt blocking mechanism (210) which prevents the unlocking of the bolt (202) even when a key having the correct mechanical key cuts (102) inserted into the lock. Power for operating the electronic lock as well as the solenoid is provided by a power supply within the key (504).

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