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Diagnostic apparatus

  • US 4,644,479 A
  • Filed: 07/31/1984
  • Issued: 02/17/1987
  • Est. Priority Date: 07/31/1984
  • Status: Expired due to Fees
First Claim
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1. Diagnostic apparatus for monitoring an operating system subject to malfunctions, comprising:

  • (A) a plurality of sensors providing signals indicative of predetermined parameters of said system;

    (B) control means operable to establish a first subsystem for each of a selected number of said sensors and including means to periodically obtain readings of sensor output signals for providing particular indications of sensor output reading changes, if any;

    (C) said control means operable to establish a second subsystem responsive to selected sensor readings as well as selected ones of said change indications provided by said first subsystem to provide validated conclusions relative to a sensor signal with each having a certain confidence factor in the validity of the conclusion; and

    (D) said control means operable to establish at least a third subsystem responsive to sensor signals as well as said validated conclusions relative to the sensor signals to provide indications of possible malfunctions in said operating system.

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