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If one of them fails, the rover could use the other as a backup Any idea how that works practically? I mean, there are two boards and one set of peripherals. I
by stinos 12y ago
If one of them fails, the rover could use the other as a backup
Any idea how that works practically? I mean, there are two boards and one set of peripherals. Is there like an external controller which constantly checks if board A is doing fine, and if not, somehow reroutes all peripheral communication to board B?
- avar 12y agoThe NASA website seems to imply that it's done manually: http://mars.jpl.nasa.gov/msl/mission/rover/brains/ http://mars.jpl.nasa.gov/msl/mission/rover/brains/ Presumably there's some basic functions in the radio stack they use where they can trigger operations like shutdown, startup, reboot, switch boards etc.
- gsnedders 12y agoNASA normally has pretty low-level stuff. To the point of being able to do full firmware updates — though obviously that's something they don't want to risk ordinarily.