×

Fault diagnosis device and method for optimizing maintenance measures in technical systems

  • US 8,442,702 B2
  • Filed: 10/22/2009
  • Issued: 05/14/2013
  • Est. Priority Date: 10/22/2008
  • Status: Active Grant
First Claim
Patent Images

1. A fault diagnosis device for optimizing maintenance measures in a flying object comprising:

  • a storage unit for storing diagnosis rules, which each have a fault condition indicating the presence of a fault, and a fault conclusion formed by logical combinations of potential fault causes of the respective fault;

    a logic unit, which logically combines those stored fault conclusions whose associated fault conditions are met and automatically determines a logical diagnosis result having at least one fault cause hypothesis by logical Boolean calculation specifications on the basis of the combined fault conclusions of the diagnosis rules; and

    comprising a calculation unit, which calculates an occurrence probability for each fault cause hypothesis of the logical diagnosis result based on failure probabilities of individual components stored in a table, wherein the calculation unit transmits the calculated occurrence probabilities of the fault cause hypotheses of the logical diagnosis result to a maintenance device which is arranged on the ground via a wireless interface.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×