Method for establishing fault diagnosis technique based on contingent Bayesian networks

US10776230B2 · kind B2 · utility

Assignee

• Beihang University · CN

Inventors

• Shunkun Yang · Beijing, CN
• Xiaodong Gou · Beijing, CN
• Tingting Huang · Beijing, CN
• Daqing Li · Lansdowne, US
• Chong Bian · Beijing, CN
• Yushu Xie · Brookline, US
• Wenjing LIU · Beijing, CN
• Qi Yao · Nanhu, CN

Key dates

• Filing date: Nov 21, 2018
• Grant date: Sep 15, 2020
• Expiry date: Apr 3, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G06N7/01
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A method for establishing fault diagnosis technique based on contingent Bayesian networks, comprising steps of: step (1) determining a domain of an unknown object to be reasoned; step (2) defining a model structure by adopting a first-order logic language; step (3) generating a Blog model; step (4) transforming the Blog model into the contingent Bayesian networks; step (5) defining the contingent Bayesian networks; step (6) learning parameters of the contingent Bayesian networks; and step (7) reasoning a fault of the contingent Bayesian networks by utilizing a Markov chain Monte Carlo Method. By the steps mentioned above, establishing fault diagnosis technique based on contingent Bayesian networks is achieved.