Title:
【発明の名称】電気錠の制御、監視方式
Document Type and Number:
Japanese Patent JP2927358
Kind Code:
B2
Abstract:
PURPOSE:To confirm locking and unlocking of an electric lock and an opening and shutting state of a door and to make it possible to perform necessary control by applying an AC voltage to a matter that an electromagnetic actuator and a state observation device are stood in a line form a change-over device, and observing current variation. CONSTITUTION:A matter that an electromagnetic actuator 14 and a state observation device 15 are stood in a line is connected to a change-over device 24 through a two-core cable and a current observation device 23. In the change-over device 24, either DC power supply 25 or AC power supply 26 connected thereto in connected to an electric lock unit 2 based on a command of a control circuit 27. In order to make remote monitoring, when an AC voltage is applied to the matter that the electromagnetic actuator 14 and state observation device 15 are stood in a line, the current into the two-core cable varies by combinations of four kinds such as locking and unlocking of an electric lock and opening and shutting of a door. The current variation is converted into A/D, it is supplied to the controlling circuit 27, and its state is displayed. Locking and unlocking of the electric lock is made by applying a normal DC voltage to a parallel circuit of the electromagnetic actuator 14 and state observation device 15. According to the constitution, connection can be made with the two-core cable necessary and sufficient for AC and DC impressed voltage without using any multicore cable.
Inventors:
FUKUYAMA NORIO
Application Number:
JP5122090A
Publication Date:
July 28, 1999
Filing Date:
March 02, 1990
Export Citation:
Assignee:
MIWA ROTSUKU KK
International Classes:
H04B5/00; E05B47/00; (IPC1-7): E05B47/00
Domestic Patent References:
| JP5161398A | ||||
| JP54110098A | ||||
| JP50149496A |
Attorney, Agent or Firm:
Takeo Iida