Title:
ALARM*SECURITY*MONITOR DEVICE
Document Type and Number:
Japanese Patent JPS56105592
Kind Code:
A
Abstract:
An alarm, safeguarding and monitoring system for a room zone includes a plurality of sensors disposed at different positions and responsive to different physical phenomena, such as an ultrasonic sensor, an infrared sensor and a microwave sensor. The sensor outputs are individually coupled to majority decision, central processing unit and alarm generator circuits by a plurality of redundant signal links to minimize malfunction in the event of disruption or tampering.
Inventors:
HANSU GIYUNTAA SHIYUTAADERUMAI
Application Number:
JP489981A
Publication Date:
August 22, 1981
Filing Date:
January 16, 1981
Export Citation:
Assignee:
STADELMAYR HANS G
International Classes:
G08B23/00; G08B13/00; G08B13/16; G08B13/19; G08B25/00; G08B29/04; G08B29/16; G08B29/18; (IPC1-7): G08B13/00; G08B13/16; G08B23/00
Domestic Patent References:
| JPS4918598A | 1974-02-19 |