Methods and systems for pervasive diagnostics

US7937175B2 · kind B2 · utility

Assignee

• Palo Alto Research Center Incorporated · US

Inventors

• Johan de Kleer · Los Altos, US
• Robert R. Price · Palo Alto, US
• Lukas D. Kuhn · San Diego, US
• Rong Zhou · San Jose, US
• Minh Binh Do · Mountain View, US

Key dates

• Filing date: Jul 10, 2008
• Grant date: May 3, 2011
• Expiry date: Feb 27, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P90/80
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Model-based production control systems and methods are presented for constructing plans for controlling operation of a production system with a plant having a plurality of resources to achieve one or more production goals, in which a planner constructs plans for execution in the plant based on production goals while balancing both production objectives (e.g., production cost, production time) and diagnostic objectives (e.g., diagnostic cost, information gained, repair cost), and a diagnosis engine determines a current plant condition based on a previously executed plan and corresponding observations from the plant, and provides expected information gain data to the planner, with the planner generating a plan that will achieve a given production goal and is improved for one or more diagnostic objectives and the expected information gain data.