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民用飞机各个系统交联复杂,使用大量各类型的信号进行数据交互,飞控系统出于可靠性考虑,通常采用多余度的信号及路径。飞控系统需对接收到的信号进行监控,判断是否可用,对于采用冗余的信号还需建立表决机制,通过多个余度信号表决出最终用于实现控制律综合性数据。本文对总线信号和离散信号的监控及表决方法进行了研究,总结了飞控系统对信号监控和表决的方法,以及需要考虑的因素,用于飞控系统监控器和表决器设计,提高系统可靠性。
Various systems of civil aircraft cross-linked complex, the use of a large number of various types of signals for data interaction, flight control system for reliability considerations, usually redundant signal and path. The flight control system needs to monitor the received signal to determine whether it is available or not. For the redundant signal, a voting mechanism needs to be set up to obtain the final comprehensive control law data through multiple redundancy signals. In this paper, bus signal and discrete signal monitoring and voting methods were studied, the flight control system to signal monitoring and voting methods, and the factors to be considered for the flight control system monitor and voting device design, improve system reliability Sex.