EP 0032593 A3 19820203 - ALARM, SECURITY AND MONITORING APPARATUS
Title (en)
ALARM, SECURITY AND MONITORING APPARATUS
Publication
Application
Priority
DE 3001452 A 19800116
Abstract (en)
[origin: US4401976A] 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.
IPC 1-7
IPC 8 full level
G08B 23/00 (2006.01); G08B 13/00 (2006.01); G08B 13/16 (2006.01); G08B 13/19 (2006.01); G08B 25/00 (2006.01); G08B 29/04 (2006.01); G08B 29/16 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP US)
G08B 13/00 (2013.01 - EP US); G08B 13/19 (2013.01 - EP US); G08B 29/046 (2013.01 - EP US); G08B 29/16 (2013.01 - EP US); G08B 29/183 (2013.01 - EP US)
Citation (search report)
- WO 7900902 A1 19791115 - STADELMAYR H [DE]
- DE 1929145 A1 19701223 - SIEMENS AG
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0032593 A2 19810729; EP 0032593 A3 19820203; DE 3001452 A1 19810723; JP S56105592 A 19810822; US 4401976 A 19830830
DOCDB simple family (application)
EP 80108235 A 19801229; DE 3001452 A 19800116; JP 489981 A 19810116; US 22500081 A 19810114