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High integrity control system architecture using digital computing platforms with rapid recovery

  • US 20040098140A1
  • Filed: 11/20/2002
  • Published: 05/20/2004
  • Est. Priority Date: 11/20/2002
  • Status: Active Grant
First Claim
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1. A control system architecture for controlling a plant, the system comprising:

  • a computing units system having a plurality of redundant processing units, each of the processing units being configured to generate at least one of a plurality of redundant position signals for the plant and where each processing unit is configured to self initiate rapid recovery; and

    an adaptor coupled to the computing units system and configured to receive each of the position signals, to compute a mid-value for the position signals, and to initiate a rapid, recovery in one of the redundant processing units if the difference between the position signal generated by that processing unit and the mid-value exceeds a threshold value.

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