3 ms·
iirc all flight systems are in triplicate and all data is checked against the others, then a quarum is needed from the 3 to make a decision. other rockets use
by Beached 5y ago
iirc all flight systems are in triplicate and all data is checked against the others, then a quarum is needed from the 3 to make a decision.
other rockets use rad hardened computers that make decisions on their own, but for cost and time, I believe SpaceX just triplicated all necessary systems and votes out and reboots any system that gets bit flips.
- bodhiandpysics1 5y agoThey actually use more than three now. The basic architecture is that computers are organized in "strings". Each string is doubled. If the two don't agree, the result is chucked, and the system reboots. Each of these "strings" then participates in a quorum. The result is extreme reliability, with relatively fast convergence.