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A HARDWARE DESIGN FOR MAJORITY VOTING, AND TESTING AND MAINTENANCE OF MAJORITY VOTING

机译:重大投票的硬件设计以及重大投票的测试和维护

摘要

The invention relates to majority voting. A number of input signals are monitored individually by separate monitors, one monitor for each signal. Each monitor generates a control signal representing the status of the monitored signal. The generated control signals are sent to a level control unit. The level control unit control the input levels to a majority voter according to the control signals. Instead of signals that are faulty, the level control unit selects signals of specific logical levels to be forwarded to the majority logic. The logical levels of these so called replacement signals are selected such that the replacement signals do not interfere with the remaining correct signals. Furthermore, the majority voted output signal is monitored so as to selectively generate an alarm. The voting functionality is tested by stopping input signals according to a first procedure, thus generating an alarm. By stopping input signals according to a second procedure, an alarm is avoided.
机译:本发明涉及多数投票。多个输入信号由单独的监视器分别监视,每个信号一个监视器。每个监视器生成代表被监视信号状态的控制信号。产生的控制信号被发送到电平控制单元。电平控制单元根据控制信号控制对多数表决者的输入电平。代替故障信号,电平控制单元选择特定逻辑电平的信号转发给多数逻辑。选择这些所谓的替换信号的逻辑电平,以使替换信号不干扰其余的正确信号。此外,监视多数表决的输出信号,以便有选择地产生警报。通过根据第一过程停止输入信号来测试表决功能,从而生成警报。通过根据第二过程停止输入信号,避免了警报。

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