US 11,906,575 B2
Electrical power analyzer for large and small scale devices for environmental and ecological optimization
Jia Liu, Astoria, NY (US); Zhiyuan Li, Long Island City, NY (US); Dean Steuer, White Plains, NY (US); and Hyman David Chantz, Scarsdale, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Apr. 21, 2020, as Appl. No. 16/854,776.
Prior Publication US 2021/0325447 A1, Oct. 21, 2021
Int. Cl. G01R 31/08 (2020.01); G01R 31/28 (2006.01); H02J 13/00 (2006.01); G06N 20/00 (2019.01)
CPC G01R 31/2839 (2013.01) [G01R 31/2846 (2013.01); G06N 20/00 (2019.01); H02J 13/00002 (2020.01); H02J 13/00022 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method of identifying an anomaly in an operation of a device, comprising:
measuring voltages of lead pairs connected to respective prongs of an electrical plug;
determining, based on the measurement, a current power draw signature of the device based on an analog waveform data stream of the device;
digitizing the analog waveform data stream;
comparing, by an electrical power analyzer coupled to an electrical outlet, the current power draw signature of the device with a known power draw signature of the device;
determining whether at least one anomaly is present in the current power draw signature indicating an imminent failure of the device; and
generating a warning in response to determining the at least one anomaly is present in the current power draw signature.