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Method and device for consolidation by software synchronisation in flight control computers

  • US 7,890,221 B2
  • Filed: 05/07/2007
  • Issued: 02/15/2011
  • Est. Priority Date: 05/19/2006
  • Status: Expired due to Fees
First Claim
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1. A method for synchronising two asynchronous COM and MON units, for control and monitoring, respectively, of a computer of a computation system comprising a plurality of computers connected to one another by a communication connection, wherein each of the COM and MON units comprises a computation unit, the method comprising:

  • computing independent local Boolean signals, each having a Boolean inertia greater than temporal uncertainties, due to latencies in transmission between computers and precision of a sampling controlled by a clock cycle of each of the COM and MON units, capable of affecting them,exchanging, between the COM and MON units, of local signals, with each of the COM and MON units sending a locally computed value to the other unit,generating a pair of synchronised signals, in each of the COM and MON units, based on its locally computed value and the computed value received from the other unit,forming a consolidated signal based on the pair of synchronised signals.

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