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Unread 23-03-2004, 11:53
Rickertsen2 Rickertsen2 is offline
Umm Errr...
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Re: PID control loops - closed loop feedback

Quote:
Originally Posted by maxlobovsky
If you do implement anything this advanced, please post some data comparing it to simpler algorithms. IE response times, or even better, response curves.
Alright i will. Once we get our robot back, this is the sort of thing i will be messing with the rest of the year. Also, who says that jsut because you have an 8-bit processor you are limited to 8 bit precision. There are other data types that arn't 8-bit. We needed something that could handle decimal values, but didn't want to use floating point, so we invinted our own fixed point system. I may publish that at some later time. I mean in the end we are limited to 8-bit motor control, but that shouldn't be too much of a problem. It seems like thats plenty. As far as input resolution goes we arn't really limited. We can add whatever sensors we want, and higher precision ADC, etc to support them.

Btw, you say you have been doing research on variable coeff algorithms, do you have any links? Any books i might read? I have wanted to learn more about feedback control loops, particulary adaptive ones, but havn't really known where to look. A freind of mine gave me a book on feedback control, but its more about analyzing the effectiveness of control loops rather than designing them.
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