Title:
BURGLARYPLOOF SYSTEM
Document Type and Number:
Japanese Patent JP3020335
Kind Code:
B2
Abstract:
PURPOSE: To prevent burglary action by starting a smoke generator in response to the detection of the invasion/destruction by an invasion sensor, etc., when mode setting device sets a warning area to be in a no person and warning state.
CONSTITUTION: When an abnormality detector 20 detects abnormality in a warning mode, a signal impressed from a third inverter 54 to a fifth AND gate 55 becomes a level '1'. Thus, when there is an abnormal state during a warning set, the fifth AND gate 55 logically generates output to its output terminal and starts a smoke starting circuit 56. Then, the smoke generator 60 is started and a signal is sent to an alarm generating circuit 41 at the same time so that the signal of that there is smoke starting to a remote monitoring device 80 through a communication line. The smoke generator 60 is installed in the warning area and when a start signal is inputted, it automatically ignites to output smoke. The outputted smoke immediately impregnates the warning area to obstruct the field of vision so that destruction, etc., can not be done.
Inventors:
Toshinori Nakamura
Toshinori Sugimoto
Toshinori Sugimoto
Application Number:
JP34647391A
Publication Date:
March 15, 2000
Filing Date:
December 27, 1991
Export Citation:
Assignee:
Secom Co., Ltd.
International Classes:
G08B15/02; (IPC1-7): G08B15/02
Domestic Patent References:
| JP6295577A |
Other References:
【文献】西独国特許2161378(DE,B)
【文献】米国特許4818843(US,A)
【文献】米国特許4818843(US,A)
Attorney, Agent or Firm:
Aoki Akira (4 outside)
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