EP 0718814 B1 20010711 - Method and device for flame detection
Title (en)
Method and device for flame detection
Title (de)
Verfahren und Anordnung zum Detektieren einer Flamme
Title (fr)
Procédé et dispositif de détection de flamme
Publication
Application
Priority
EP 94120083 A 19941219
Abstract (en)
[origin: EP0718814A1] The flame detection system uses a microprocessor with a fuzzy-controller for analysis of the radiation intensity variations resulting from the flame, with signals outside a defined frequency band identified as interference signals. The mean and limit frequencies of the detected radiation are determined, with detection of periodic and non-periodic signals, the periodic signals with a mean frequency above a first given value (G1) and the non-periodic signals with a limit frequency above a second given value (G2) identified as noise signals. The first given frequency is determined from the flicker frequency of a stationary flame of min. flame size and the second given frequency lies above the first given frequency.
IPC 1-7
IPC 8 full level
G08B 17/00 (2006.01); G08B 17/02 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP US)
G08B 17/02 (2013.01 - EP US); G08B 29/183 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0718814 A1 19960626; EP 0718814 B1 20010711; AT E203118 T1 20010715; AU 3781095 A 19960627; AU 703685 B2 19990401; CN 1099660 C 20030122; CN 1132889 A 19961009; CZ 289921 B6 20020417; CZ 321895 A3 19960717; DE 59409799 D1 20010816; US 5594421 A 19970114
DOCDB simple family (application)
EP 94120083 A 19941219; AT 94120083 T 19941219; AU 3781095 A 19951113; CN 95120895 A 19951219; CZ 321895 A 19951205; DE 59409799 T 19941219; US 57477395 A 19951219