公开(公告)号：US20170132910A1

公开(公告)日：2017-05-11

申请号：US14936787

申请日：2015-11-10

Applicant: Industrial Technology Research Institute

Inventor： Te-Ming CHEN ,  Sen-Chia CHANG ,  Chien-Liang LAI ,  Chi-Ting DAY

IPC: G08B29/18 ,  G08B21/18

CPC classification number: G08B29/185 ,  G05B19/0428 ,  G05B23/00 ,  G05B23/0235 ,  G05B23/0272 ,  G08B21/182

Abstract: A method for monitoring a manufacturing apparatus includes collecting a control signal, of a controller and a corresponding sensing signal, of the manufacturing apparatus over a predetermined period of time; segmenting the control signal and the corresponding sensing signal to obtain at least one control step; calculating a character of the controller based on at least one of the control signal, the sensing signal, the at least one control step, or information from a user manual; generating, based on the character, a health index indicating health of the controller; and generating a warning signal when the health index exceeds a predetermined threshold.