BOIL AND BOIL-DRY DETECTION SYSTEMS FOR COOKING APPLIANCES USING VIBRATION SENSORS

摘要

A method of boil and boil-dry detection for cooking appliances. The method includes the steps: detecting vibrations that correspond to cookware situated on a burner assembly; generating a vibration signal based on the vibrations; and performing signal processing on the vibration signal. The method also includes the steps: collecting vibration data related to the vibration signal; and detecting boiling and boil-dry conditions for a liquid contained within the cookware based at least in part on an evaluation of the vibration data.

主权项

1. A cooking sensor system, comprising:
a burner assembly; a vibration sensor assembly configured to generate a vibration signal that corresponds to vibrations of cookware situated on the burner assembly; and a processor arranged to receive the vibration signal and determine at least one of a boiling onset condition and a boil-dry condition for a liquid contained within the cookware, wherein the determination is based at least in part on (a) a conversion of the vibration signal into a vibration data set comprising vibration power versus frequency, and (b) a comparison of the vibration data set to boiling attributes of the liquid, and further wherein the boiling attributes comprise: (i) a predetermined threshold frequency, (ii) a predetermined boiling onset threshold vibration power, and (iii) a predetermined peak boiling threshold vibration power.