On 12/2/2013 8:27 PM, andy pugh wrote: > A very simple (too trivial, in some ways) demo I saw recently was a > levitating ball bearing. Basically a prox in the base, and an > electromagnet above, with the prox distance feeding into a PID driving > the coil current. This particular demo was by Vector, and all comms > was through XCP (which we may need to look at).
Interesting. I have an even more trivial example of this in a magnetically levitated globe my grandkids gave me a year or so ago. I've not had the heart to cut it open but I'm sure the control is extremely primitive compared to what you describe. You sent me scurrying off to look up XCP. Surprise, yet another industry-standard communication protocol, and perhaps not such a surprise, a knock on effort from CAN and the automotive industry. > > As I said, it's too trivial in some ways, but I suspect doable with > existing components. Well, the self-balancing robot also could be considered too trivial, but let's not get ahead of ourselves. I think active balancing combined with purposeful motion will suffice to illustrate Michael's talk, with "doable with existing components" being the operative phrase. > > <ponder> I have a 150m laser thing working with SSI and Hal, can we > play the same game with electrostatics and balloons? Or magnets and > trains? I'm not sure where you're going with magnets and trains but...hmmm...lasers...robots...how about balloon-topped robots equipped with shoulder-mounted lasers stalking each other and trying to burst each other's balloon? Oh, wait, DARPA has already done it and in a convincingly lethal way. Regards, Kent ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
