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

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.