公开(公告)号：GB2604682A

公开(公告)日：2022-09-14

申请号：GB202114293

申请日：2021-10-06

Applicant: IBM

Inventor： RUI WW WANG ,  JING WEN XU ,  ZI JIAN JI ,  HE LI ,  YA DONG LI ,  JIAN ZHANG

IPC: G01R13/02 ,  G01R23/00

Abstract: A method for detecting and monitoring a signal includes: detecting an alignment point for a periodic signal segment of a periodic signal generated by an apparatus being monitored for standard functionality; activating the apparatus from a period prior to the alignment point to an end point of the periodic signal segment; locating a first point of the periodic signal segment; and locating a second point of an additional periodic signal segment. The method further comprises: determining a lowest point of the periodic segment; determining a difference feature between the first and second points; determining a minimum angle between the first and second points; analyzing the lowest point with respect to the difference feature and minimum angle; and normalizing the periodic signal in response to locating the first and second points. The signal may be a pressure of a water pump, a sound or vibration of an engine, or a distance signal of gear engagement. These may be used to judge the health or running state of the apparatus.