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(...) So how do you remember what you've already explored? I think you *need* three states if you want your robot to curiously explore it's environment without continually re-exploring areas that it's already visited but which proved to be empty. If (...) (22 years ago, 27-Jun-02, to lugnet.robotics)
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| | Dead reckoning (was Re: Rover Programming)
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(...) A systematic search pattern is one solution. Not being too anal about it is another - random walking the domain will eventually explore the whole of it, although increasingly inefficiently as time goes on. (...) It's killing me. My first (...) (22 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) If you haven't already, check out (URL) was able to get quite precise dead-reckoning w/ a Lego bot by programming a PID-type controller. - Gareth (22 years ago, 27-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) Yes - managing accelleration is a 'must'...both in speeding up and slowing down - and easing into turns. An abrupt change of speed will generally result in wheel slip. (...) It was good in a straight line - but *hopeless* in a turn because the (...) (22 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) WOW! That's impressive - but I can't help but get the impression that it's heavily optimised to going around that particular track. Getting that good positioning on the straight sections is impressive - but I wonder how it would have fared in (...) (22 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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(...) Well, I did the code changes to do acceleration and deceleration yesterday and it's amazingly successful. I'm not yet quite as good as the Seattle robot, but I suspect that's at least partly because mine has a narrower track. I now believe (...) (22 years ago, 28-Jun-02, to lugnet.robotics)
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| | Re: Dead reckoning (was Re: Rover Programming)
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Hi Simon, In my experience casters can introduce errors in the navigation since they tend to not be in the correct position following a turn. Over time this small error can add up. I have had some success by rebuilding my bot to center as much of (...) (22 years ago, 28-Jun-02, to lugnet.robotics)
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