Methods and systems for continuously estimating persistent and intermittent failure probabilities for production resources

US8165705B2 · kind B2 · utility

Assignee

• Palo Alto Research Center Incorporated · US

Inventors

• Johan de Kleer · Los Altos, US
• Lukas D. Kuhn · San Diego, US
• Robert R. Price · Palo Alto, US
• Minh Binh Do · Mountain View, US
• Rong Zhou · San Jose, US
• Juan Liu · Lo Wu, CN
• Eric Saund · Redwood City, US

Key dates

• Filing date: Jun 23, 2009
• Grant date: Apr 24, 2012
• Expiry date: Aug 16, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P90/80
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

Production control systems and methods are presented for estimation of production resource failure probabilities in which a set of four count values are maintained and updated for each resource including a first count value m11 indicating a number of plans where the resource m was used and failed, a second count value m10 indicating a number of plans where the resource m was used and succeeded, a third count value m01 indicating a number of plans where the resource m was not used and failed, and a fourth count value m00 indicating a number of plans where the resource m was not used and succeeded, and the current fault probability for each resource is estimated and stored for single or multiple, persistent or intermittent faults based on the corresponding count values.