Redundancy and voting

Cards in this group · 4

1. Y4.02.1Measuring the same thing through several independent channels keeps one random fault from deciding the outcome
2. Y4.02.2When redundant channels disagree, a predefined voting rule, not an ad hoc choice, decides which wins
3. Y4.02.3The voter that reconciles redundant channels is itself one piece of hardware that can fail
4. Y4.02.4When sensors disagree, the operator should see it, even while the voting logic quietly picks a value