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Spacecraft autonomous redundancy control

  • US 4,654,846 A
  • Filed: 12/20/1983
  • Issued: 03/31/1987
  • Est. Priority Date: 12/20/1983
  • Status: Expired due to Term
First Claim
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1. A method for providing on-board a spacecraft autonomous redundancy control to perform automatic fault detection and to automatically reconfigure a spacecraft system where that system includes primary sensors and primary controls, redundant sensors and redundant controls, data processor units for handling sensor and control data and input/output circuits between the sensors and the controls and the data processor comprising the steps of:

  • automatically testing said primary sensors and primary controls at a primary processor unit,automatically disconnecting said primary sensor or primary control from said input/output circuit and connecting up said redundant sensor or redundant control upon detection at said primary processor unit of errors from said sensor or control exceeding a predetermined threshold,automatic testing of the switched redundant sensor or control at said primary processor unit, andautomatically disconnecting a first input/output circuit and connecting a second redundant input/output circuit between said connected redundant sensor or control and said primary data processor unit if after connecting said redundant sensor or control the errors tested at the processor unit continue to exceed said threshold.

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