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SpaceX's Linux-based engine controllers at least have a decent amount of redundancy. They're all triple-redundant, and each of the three components consists of
by bluefeather 8y ago
SpaceX's Linux-based engine controllers at least have a decent amount of redundancy. They're all triple-redundant, and each of the three components consists of two cpu cores running in lockstep that are validated against each other as well.
- kpil 8y agoSignalling and train control systems typically have two independent implementations - full stack: hardware, os, software, different development teams. I guess you'd need three separate implementations to achive some redundancy when you can't just slam the emergency brakes if the systems disagree. (... For some reason, I find it higly demotivating that another team is doing the exact same thing. Maybe I just want to be a snowflake...)