EP 0772855 A1 19970514 - FIRE DETECTION DEVICE WITH DISRUPTIVE PARAMETER CORRECTION
Title (en)
FIRE DETECTION DEVICE WITH DISRUPTIVE PARAMETER CORRECTION
Title (de)
BRANDMELDER MIT KORREKTUR VON STÖRPARAMETERN
Title (fr)
DISPOSITIF DE DETECTION D'INCENDIE AVEC CORRECTION DE PARAMETRES PERTURBATEURS
Publication
Application
Priority
- FR 9501016 W 19950727
- FR 9409471 A 19940729
Abstract (en)
[origin: WO9604631A1] Fire detection device (1) comprising a fire sensor which measures a first physical quantity and generates a measuring signal, the latter being affected by a second physical quantity which is different from the first. The device also includes a correction sensor (4) for measuring the second physical quantity and generating a correction signal. The fire sensor and the correction sensor are connected to a microprocessor (2) in which is stored a curve representing a normal operating value i0 of the measuring signal based on the value of the correction signal in the absence of a fire. The microprocessor is programmed to calculate i0 based on the correction signal and to determine the presence of a fire when the mesuring signal is not included in the range of values determined about i0.
IPC 1-7
IPC 8 full level
G08B 17/06 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP)
G08B 29/185 (2013.01)
Citation (search report)
See references of WO 9604631A1
Designated contracting state (EPC)
BE DE ES FR GB
DOCDB simple family (publication)
WO 9604631 A1 19960215; DE 69506418 D1 19990114; EP 0772855 A1 19970514; EP 0772855 B1 19981202; ES 2126916 T3 19990401; FR 2723235 A1 19960202; FR 2723235 B1 19961018; JP H11509342 A 19990817
DOCDB simple family (application)
FR 9501016 W 19950727; DE 69506418 T 19950727; EP 95926986 A 19950727; ES 95926986 T 19950727; FR 9409471 A 19940729; JP 50624896 A 19950727