Title:
DOOR LOCK TAMPER-RESISTANT DEVICE AND DOOR LOCK SYSTEM
Document Type and Number:
Japanese Patent JP2023048987
Kind Code:
A
Abstract:
To prevent unauthorized unlocking of a door more reliably than before.SOLUTION: A door lock tamper-resistant device 40 of the present invention is connected via a door D to a face authentication terminal 10 including a switch element 12 having a common terminal COM, a normally-closed terminal NC and a normally-open terminal NO, and a processing unit 11 that switches the connection destination of the common terminal COM between a normally-closed terminal NC and a normally-open terminal NO according to an authentication result: and is configured to control a locking state of the door D according to changes in the combination of a potential of an input terminal a, which is connected to the normally-open terminal NO via the door D, and a potential of an input terminal b, which is connected to the normally- closed terminal NC via the door D.SELECTED DRAWING: Figure 1
Inventors:
KAWAI TOSHIHIKO
KITO HIROTAKE
KITO HIROTAKE
Application Number:
JP2022115337A
Publication Date:
April 07, 2023
Filing Date:
July 20, 2022
Export Citation:
Assignee:
GROUND WORK CO LTD
International Classes:
E05B47/00; E05B45/06; E05B49/00
Attorney, Agent or Firm:
Yasuyuki Kurose