1results about How to "Save CPU time" patented technology

The invention discloses a dual-channel synchronization method and system for an aero-engine controller. The reliability and robustness of the engine controller are improved. According to the technical scheme, the method comprises the steps of 1, powering up; 2, judging whether the channel is a master control channel or not; 3, entering a periodic task; step 4, sending a synchronization pulse: sending a synchronization pulse signal after the master control channel enters a periodic task, and providing the synchronization pulse signal to the backup channel in a differential signal form; 5, delaying a fixed time window to obtain a master control channel synchronization pulse, wherein the backup channel waits for the fixed time window to capture the master control channel synchronization pulse in an initialization state; 6, judging whether a master control channel synchronization pulse is obtained or not; step 7, entering the task of the period when receiving the master control synchronization pulse; and 8, entering the period task after the delayed fixed time is ended, and then returning to the step 5: if the backup channel does not capture the synchronization pulse in the specified time window, entering the period task after the time window is ended.