A method and system for controlling dual-channel synchronization

A dual-channel, channel technology, applied in machine/engine, jet propulsion, gas turbine, etc., can solve the problems of large timing interruption time deviation and permanent out-of-step, and achieve the effect of reducing timing interruption time difference

Active Publication Date: 2021-06-25
中国航发控制系统研究所
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  • Abstract
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Problems solved by technology

[0003] The currently commonly used dual-channel synchronization method has the disadvantages of large timing interruption time deviation and possible permanent out-of-synchronization.

Method used

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  • A method and system for controlling dual-channel synchronization
  • A method and system for controlling dual-channel synchronization
  • A method and system for controlling dual-channel synchronization

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Embodiment Construction

[0044] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0045] It should be noted that the names used in this article and their meanings are as follows:

[0046] The small frame cycle refers to the cycle of the smallest periodic task, usually the scheduled interrupt cycle;

[0047] Large frame cycle refers to the least common multiple of the cycles of all periodic tasks;

[0048] The small frame beat number refers to the serial number of each small frame period under a large frame period;

[0049] Timing interruption time deviation refers to the actual timing interruption interval time - standard timing interruption interval time;

[0050] Fast / slow channel means that under the premise that the two-channel small f...

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Abstract

The invention discloses a method for controlling dual-channel synchronization, wherein the dual-channel includes two channels, and the dual-channel synchronization includes two processes of power-on synchronization and cycle synchronization. The method for controlling dual-channel synchronization includes: controlling power-on synchronization , to control the timed interrupt by judging the sequence of the initialization time of the two channels; to control the cycle synchronization, to reset the timed interrupt timer by judging whether the beat numbers of the last small frame of the two channels are consistent. The invention also discloses a system for controlling the synchronization of two channels. The method for controlling the synchronization of the two channels provided by the invention reduces the time difference between the timing interruptions of the two channels.

Description

technical field [0001] The invention relates to the technical field of aero-engine control, in particular to a method for controlling dual-channel synchronization and a system for controlling dual-channel synchronization. Background technique [0002] Due to the high security and real-time requirements of the aero-engine digital electronic control system, dual-channel control is often used, and how to keep the dual-channel clocks always synchronized is an important technology. [0003] The currently commonly used dual-channel synchronization method has the disadvantages of large timing interruption time deviation and possible permanent out-of-synchronization. Therefore, how to control the dual channels to achieve better synchronization has become a technical problem to be solved urgently by those skilled in the art. Contents of the invention [0004] The present invention aims to solve at least one of the technical problems in the prior art, and provides a method for cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C9/00
Inventor 周雄杨云强施彬彬邵腾飞
Owner 中国航发控制系统研究所
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