METHOD AND SYSTEM FOR DETECTING THE PRESENCE AND/OR THE ABSENCE OF A COOKING VESSEL ON A GAS COOKING APPLIANCE WITH AT LEAST ONE GAS BURNER

摘要

The present invention relates to a method for detecting the presence and/or the absence of a cooking vessel (20) on a gas cooking appliance (10) with at least one gas burner, particularly on a gas cooking hob (10). Said method comprises the steps of transmitting an ultrasonic sound signal (16; 18) from above to the gas cooking appliance (10) by an ultrasonic transmitter, receiving a reflection of said ultrasonic sound signal (16; 18) by an ultrasonic receiver, detecting the time difference between the transmission of the ultrasonic sound signal (16; 18) and the reception of the reflected ultrasonic sound signal (16; 18), and determining the distance between a reflecting object on the one hand and the ultrasonic transmitter and/or the ultrasonic receiver on the other hand.