US 11,787,057 B2
Diagnostic system, diagnosing method, and program
Kenta Kamizono, Osaka (JP); Kazutaka Ikeda, Nara (JP); and Naofumi Shimasaki, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/253,548
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed May 31, 2019, PCT No. PCT/JP2019/021703
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2019/244599, PCT Pub. Date Dec. 26, 2019.
Claims priority of application No. 2018-116458 (JP), filed on Jun. 19, 2018.
Prior Publication US 2021/0122048 A1, Apr. 29, 2021
Int. Cl. B25J 9/16 (2006.01)
CPC B25J 9/1674 (2013.01) [B25J 9/163 (2013.01); B25J 9/1653 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A diagnostic system comprising:
an acquirer configured to acquire current waveform data representing a waveform relating to a current supplied to a driving device of an apparatus;
a storage storing a plurality of learned models corresponding to respective types of mechanisms connectable to the driving device; and
a determiner configured to determine a degree of abnormality in the apparatus from a varying portion of the waveform by using a learned model of the plurality of learned models which corresponds to a mechanism connected to the driving device, the varying portion of the waveform relating to the current supplied to the driving device corresponding to a varying time period during which a rotation speed of the driving device increases or decreases.