Local and global decision fusion for cyber-physical system abnormality detection

Patent · Tue Apr 27 04:00:00 EDT 2021

OSTI ID:1823899

Abbaszadeh, Masoud; Yund, Walter; Yan, Weizhong

Monitoring nodes may generate a series of current monitoring node values over time representing current operation of a cyber-physical system. A decision fusion computer platform may receive, from a local status determination module, an indication of whether each node has an initial local status of “normal”/“abnormal” and a local certainty score (with higher values of the local certainty score representing greater likelihood of abnormality). The computer platform may also receive, from a global status determination module, an indication of whether the system has an initial global status of “normal”/“abnormal” and a global certainty score. The computer platform may output, for each node, a fused local status of “normal” or “abnormal,” at least one fused local status being based on the initial global status. The decision fusion computer platform may also output a fused global status of “normal” or “abnormal” based on at least one initial local status.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: OE0000833
• Assignee: General Electric Technology GmbH (Schenectady, NY)
• Patent Number(s): 10,990,668
• Application Number: 16/132,705
• OSTI ID: 1823899
• Country of Publication: United States
• Language: English