System and method for identifying appliances under recall

One or more tangible, non-transitory, computer-readable media storing instructions thereon that, when executed by one or more processors, are configured to cause the one or more processors to:

• detect, from a signal corresponding to an appliance, an event of the appliance;
• determine a frequency spectrum associated with the signal in a frequency domain and during the event;
• determine a resultant frequency spectrum based on a comparison between the frequency spectrum associated with the signal and a pre-event frequency spectrum;
• determine whether the resultant frequency spectrum meets a set of one or more conditions;
• and
• perform, based on determining that the resultant frequency spectrum meets the set of one or more conditions, an action associated with the appliance.

A system, comprising:

• a sensor configured to detect an operating condition of an appliance;
• and
• processing circuitry configured to:
• receive, from the sensor, a signal indicative of the operating condition of the appliance;
• detect, based on the signal, an event of the appliance;
• extract information from the signal between a start of the event and a stop of the event, inclusive;
• convert the information from a time domain to a frequency domain;
• determine a characteristic associated with the signal as a function of the frequency domain and during the event;
• determine a resultant characteristic as a function of the frequency domain and based on a comparison between the characteristic associated with the signal and a pre-event characteristic by subtracting a pre-event frequency peak corresponding to the pre-event characteristic from a frequency peak corresponding to the characteristic associated with the signal to determine a resultant frequency peak corresponding to the resultant characteristic;
• determine whether the resultant characteristic meets a set of one or more conditions;
• and
• perform, based on determining that the resultant characteristic meets the set of one or more conditions, an action associated with the appliance.