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Method and system for redundancy management of distributed and recoverable digital control system

  • US 8,260,492 B2
  • Filed: 05/04/2006
  • Issued: 09/04/2012
  • Est. Priority Date: 08/05/2005
  • Status: Active Grant
First Claim
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1. A method for redundancy management comprising:

  • providing a plurality of computing units each comprising;

    a plurality of redundant processing units for generating one or more redundant control commands; and

    one or more internal monitors for detecting one or more data errors in the control commands;

    providing a plurality of actuator control units having a pair of redundant computational lanes for analyzing control commands and providing feedback to the processing units; and

    initiating a selective and isolated recovery of one or more monitored applications in a processing unit of the plurality of processing units while one or more other applications remain undisturbed in the processing unit when;

    one or more data errors are detected in the one or more monitored applications by one or more of the internal monitors;

    orone or more data errors are detected in the one or more monitored applications by one or more of the actuator control units;

    wherein the recovery restores the most recent error-free congruent set of state data for any one or more of the selected applications simultaneously.

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