Global Patent Index - EP 0834846 B1

EP 0834846 B1 2002-01-23 - Wireless hazard signalling system and method

Title (en)

Wireless hazard signalling system and method

Title (de)

Drahtlose Gefahren-Meldeanlage und Meldeverfahren

Title (fr)

Système de signalisation de risques sans fils et procédé

Publication

EP 0834846 B1 (DE)

Application

EP 97122284 A

Priority

  • DE 19506385 A
  • EP 96100688 A

Abstract (en)

[origin: EP0729124A1] The alarm system has a central station Ä1Ü that has a receiver and a transmitter Ä11Ü. The receiver is coupled by non contact communication paths to a variety of sensors and detectors, e.g. motion detectors Ä21Ü, contact detectors Ä20Ü, smoke detectors Ä22Ü, temperature and water sensors Ä23Ü. In addition the system has a manual transmitter Ä5Ü, a remote controller Ä8Ü and a code transmitter Ä8Ü. The system also has a universal receivers Ä710, 70Ü for optical and acoustic information. To check the against disturbances the system has a transponder for test signals. Protection against disturbing noise signals is enhanced by the use of two communication signals of different frequencies and the use of a deactivation phase.

IPC 1-7

G08B 25/10; G08B 29/18

IPC 8 full level

G08B 25/10 (2006.01); G08B 29/16 (2006.01); G08B 29/18 (2006.01)

CPC

G08B 29/188 (2013.01); G08B 25/10 (2013.01); G08B 29/16 (2013.01); G08B 25/008 (2013.01)

DCS

AT CH FR GB IT LI

DOCDB simple family

EP 0729124 A1 19960828; EP 0729124 B1 19980708; AT 168209 T 19980715; AT 212464 T 20020215; DE 19506385 C1 19961010; DE 19506385 C2 20020307; EP 0834846 A2 19980408; EP 0834846 A3 19980805; EP 0834846 B1 20020123