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Hexes and octocopters are "safer" than quads - since they can (with appropriate controllers) cope with any one motor/controller out, and some combinations of mu
by bigiain 7y ago
Hexes and octocopters are "safer" than quads - since they can (with appropriate controllers) cope with any one motor/controller out, and some combinations of multiple motors out. (Anyone flying expensive DSLR cameras uses these for that reason.)
There are some quad copter controllers that try to deal with single motor failures, but they're mostly experimental (at least on the hobby end to the space) since they need to be able to reverse a motor, which most motor controllers used in these applications are not build to do.
- asteli 7y agoI recall a quadcopter control mode that spins the entire craft quite rapidly, exchanging yaw control for altitude control. Found a vid: https://m.youtube.com/watch?v=bsHryqnvyYA https://m.youtube.com/watch?v=bsHryqnvyYA
- bigiain 7y agoWithout even clicking that I knew it was gonna be ETH Zurich... They do pure magic. Pretty much nobody _else's_ quadcopters can survive a motor failure... (But it'll come, presumably. Amazing software is cheaper than redundant hardware, after all...)
- toxik 7y agoNot to detract from how cool this work is but the preconditions for this to work are quite far-reaching. It is based on bridging the reality gap by having that gap approach zero - by removing error sources from the real world rather than model and account for them. Same goes for other ASL work.