EP 1014325 A1 20000628 - Improvements in anti-intrusion systems against false-alarms
Title (en)
Improvements in anti-intrusion systems against false-alarms
Title (de)
Verbesserungen in Einbruchsicherungsystemen gegen Fehlalarme
Title (fr)
Améliorations concernant les fausses alarmes dans les systèmes de détection d'intrus
Publication
Application
Priority
IT RE980127 A 19981214
Abstract (en)
An anti-intrusion alarm system is constituted by a plurality of sensors having the same technology, but a covering diagram oriented towards different directions. Such configuration allows alarm signaling in opposite conditions with respect to conventional methods. If two or more sensors signal a breaking with the same intensity, the same is considered as an environment disturbance; if on the contrary, it is sensed by one only sensor, while on the other one or ones it is not signaled or is much less sensed, the real alarm signal is transmitted to the station. <IMAGE>
IPC 1-7
IPC 8 full level
G08B 13/00 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP)
G08B 13/00 (2013.01); G08B 29/188 (2013.01)
Citation (search report)
- [X] US 5471195 A 19951128 - RICKMAN STEPHEN A [US]
- [XA] US 5424711 A 19950613 - MUELLER NORBERT [DE], et al
- [A] DE 3620030 A1 19870827 - MEGAMOS F & G SICHERHEIT [DE]
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 1014325 A1 20000628; IT 1305345 B1 20010504; IT RE980127 A1 20000614
DOCDB simple family (application)
EP 99121151 A 19991022; IT RE980127 A 19981214