公开(公告)号：US20190258945A1

公开(公告)日：2019-08-22

申请号：US16280292

申请日：2019-02-20

Applicant: FANUC CORPORATION

Inventor： Hideyuki FUKUDA ,  Taku SASAKI

IPC: G06N5/04 ,  G06N20/00 ,  G06N3/04 ,  G05B23/02

Abstract: A fault diagnosis apparatus is provided with a machine learning device, and the machine learning device observes at least one of fault time point data including information at the occurrence of a fault of a motor drive apparatus to be repaired, and operating environment data indicating an operating environment, operating history data indicating an operating history, as a state variable representing the present state of the environment; acquires repaired and/or replaced part data indicating a part that has been repaired and/or replaced in the motor drive apparatus as label data; and performs learning by associating the observed state variable with the acquired label data.