EP 2073178 B1 20130821 - Method for electronically checking the functionality of a piezo-electric signal generator of a warning system
Title (en)
Method for electronically checking the functionality of a piezo-electric signal generator of a warning system
Title (de)
Verfahren zur elektrischen Überprüfung der Funktionsfähigkeit eines piezo-elektrischen Signalgebers eines Warnmelders
Title (fr)
Procédé de contrôle électrique de la capacité fonctionnelle d'un émetteur de signal piézoélectrique d'un avertisseur
Publication
Application
Priority
EP 07150340 A 20071221
Abstract (en)
[origin: EP2073178A1] The method involves inputting an electric control signal to a piezo electric acoustic signal generator, which allows activation of the signal generator in a noiseless manner based on a time period and rate of the electric control signal. An electric response signal of the signal generator is measured based on the activation, and is compared with a determined reference signal, where the reference signal is close to a given functionality of the signal generator in accordance with the response signal. Electronics of a warning unit is provided in a storage.
IPC 8 full level
G08B 3/10 (2006.01); G08B 29/12 (2006.01); G08B 29/14 (2006.01)
CPC (source: EP)
G08B 3/10 (2013.01); G08B 29/126 (2013.01); G08B 29/14 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07150340 A 20071221