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1. (WO2017153622) METHOD FOR CONTROLLING AN ACOUSTIC WARNING DEVICE AND ACOUSTIC WARNING DEVICE THAT PERFORMS SAID CONTROL METHOD

Pub. No.:    WO/2017/153622    International Application No.:    PCT/ES2017/070126
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: B06B 1/02
G08B 3/10
G10K 9/12
Applicants: CLARTON HORN, S.A.U.
Inventors: MINGUET GARCÍA, Enrique
NICOLAS MARISCAL, Rafael
VACAS ALMAGRO, Guillermo
Title: METHOD FOR CONTROLLING AN ACOUSTIC WARNING DEVICE AND ACOUSTIC WARNING DEVICE THAT PERFORMS SAID CONTROL METHOD
Abstract:
The invention relates to a method which is a more robust, flexible and easy-to-use alternative to current methods for controlling acoustic warning devices. The method is essentially characterised in that it comprises analysing and measuring the variation in the voltage (UL) of a coil (6) and/or at least one variable property of the voltage (UL), the analysis being performed by a control circuit (10) during the transient disconnection of the coil (6), which is caused by an electronic switch device (20). The method is further characterised in that it comprises adjusting the frequency and pulse rate of a pulse generator (30), by means of the control circuit (10), the adjustment being made according to a working condition in which a greater inductance variation is produced in the coil (6), that is, by adjusting the warning device (1) to the resonance frequency thereof.