US 11,692,301 B2
System and method for using sound to monitor the operation of a dryer appliance
Khalid Jamal Mashal, Louisville, KY (US); Nemetalla Salameh, Louisville, KY (US); and Juan Manuel Huerta, Louisvile, KY (US)
Assigned to Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed by Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed on Oct. 16, 2020, as Appl. No. 17/72,661.
Prior Publication US 2022/0120026 A1, Apr. 21, 2022
Int. Cl. D06F 58/52 (2020.01); D06F 34/18 (2020.01); D06F 34/04 (2020.01); D06F 103/04 (2020.01); D06F 105/58 (2020.01); D06F 105/62 (2020.01); D06F 103/06 (2020.01); D06F 103/26 (2020.01); D06F 103/36 (2020.01); D06F 103/08 (2020.01)
CPC D06F 58/52 (2020.02) [D06F 34/04 (2020.02); D06F 34/18 (2020.02); D06F 2103/04 (2020.02); D06F 2103/06 (2020.02); D06F 2103/08 (2020.02); D06F 2103/26 (2020.02); D06F 2103/36 (2020.02); D06F 2105/58 (2020.02); D06F 2105/62 (2020.02)] 20 Claims
OG exemplary drawing
 
14. A method of operating a dryer appliance, the dryer appliance comprising a drum rotatably mounted within a cabinet, the drum defining a chamber for receipt of clothes for drying, and a microphone for monitoring sound generated during operation of the dryer appliance, the method comprising:
obtaining a sound signal generated during operation of the dryer appliance using the microphone;
generating a spectrogram from the sound signal, the spectrogram representing a sound frequency and a sound amplitude over time;
identifying a sound signature by analyzing the spectrogram using an image recognition process; and
adjusting at least one operating parameter of the dryer appliance based at least in part on identification of the sound signature.