EP 1107204 A2 20010613 - Infra-red monitoring system
Title (en)
Infra-red monitoring system
Title (de)
Infrarotes Überwachungssystem
Title (fr)
Système de surveillance infrarouge
Publication
Application
Priority
GB 9929287 A 19991211
Abstract (en)
An intruder monitoring apparatus 1 comprises a series of passive infrared detectors 2 for detecting infrared radiation within region to be monitored, and providing first signals containing information representing the temperature of objects emitting infrared radiation. The passive infrared detectors 2 are arranged in pairs and each pair of detectors 2 sends output signals to a processor 3 which determines whether an object emitting infrared radiation lies within a predetermined temperature range and occupies a region exceeding a predetermined size. In such a situation, the processor 3 sends an output signal to alarm means 4 which sends an alarm call to a remote location via a radio antenna 5 or the public telephone network 6. <IMAGE>
IPC 1-7
IPC 8 full level
G08B 13/19 (2006.01)
CPC (source: EP)
G08B 13/19 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1107204 A2 20010613; EP 1107204 A3 20020814; GB 9929287 D0 20000202
DOCDB simple family (application)
EP 00308422 A 20000926; GB 9929287 A 19991211