Monday, October 15, 2007

[oopic] Re: Distance calculation problems

Why bother with caculations when a quick empirically-derived answer
will do? A pair of GP2D120s, angled 30 to 45 degrees left and right, to
tell you when something is too close - the digital trigger ones, not
the rangers. You can get a trigger range of 9 to 30 inches or so. Check
the Hobby Engineering website.
Part of robotics design lies in knowing (or guessing) when to go with a
workable compromise. Identify what is important and stay focused.

--- In oopic@yahoogroups.com, "zahrec" <Andy.Cini@...> wrote:
>
> Hi...
>
> I want to build a sophisticated obstacle avoiding robot with a servo
> sweep and a proximity sensor on top of it. I don't want the robot to
> just make a change in direction everytime it sees an object. It has to
> be able to see two objects and then calculate the distance between
> them and decide if theres enough space to get through. Does anyone in
> here have any experience with that sort of calculations? I will like
> some help on choosing the right sensor too. I'm thinking about a Sharp
> GP2D12 or some other inexpensive sensor.
>
> Thank you in advance:)
>



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