公开(公告)号：US20190122131A1

公开(公告)日：2019-04-25

申请号：US16090744

申请日：2018-02-12

Applicant: Dalian University of Technology

Inventor： Tinghua YI ,  Haibin HUANG ,  Hongnan LI ,  Shuwei MA

IPC: G06N7/00 ,  G06F17/15 ,  G06F17/16 ,  G06F17/11

Abstract: The present invention belongs to the technical field of health monitoring for civil structures, and an anomaly identification method considering spatial-temporal correlation is proposed for structural monitoring data. First, define current and past observation vectors for the monitoring data and pre-whiten them; second, establish a statistical correlation model for the pre-whitened current and past observation vectors to simultaneously consider the spatial-temporal correlation in the monitoring data; then, divide the model into two parts, i.e., the system-related and system-unrelated parts, and define two corresponding statistics; finally, determine the corresponding control limits of the statistics, and it can be decided that there is anomaly in the monitoring data when each of the statistics exceeds its corresponding control limit.