[Robotgroup] Drive a Droid proposal... How to detect the "fence"?

[Eric Lundquist]

Instead of RF, how about a magnetic trip switch?  I have a roll of the
magnetic strip material used in making refrigerator magnets.  It is not very
strong but could probably be used in conjunction with a hall effect switch
mounted onto the robot similar to line detecting sensors.
- Eric



On 7/8/08, Gray Mack <gray_mack at yahoo.com> wrote:
>
> I like the idea of the wire based dog fence. Since it is RF sensors could
> be completely hidden, the question is of course how well it works. It needs
> to sense accurately about 10-12 inches from the fence. Upon detection, the
> easiest thing to do is make it go really slowly. Then you can instruct the
> 'driver' to go away from the fence, or take over. They get the point when it
> moves painfully slow that they need to turn around. Maybe give them a custom
> controller, a twist knob and a forward/back stick and some buttons for the
> actions.
> -Gray
>
> --- On Tue, 7/8/08, Vern Graner <vern at txis.com> wrote:
>
> > From: Vern Graner <vern at txis.com>
> > Subject: Re: [Robotgroup] Drive a Droid proposal... How to detect the
> "fence"?
> > To: "The Robot Group Mailing List" <robotgroup at puremagic.com>
> > Date: Tuesday, July 8, 2008, 9:50 AM
> > Andre Lamothe wrote:
> > > There is going to be a lot of noise, wind, rain  even
> > potentially,
> >
> > Actually the event is scheduled for an indoors venue so the
> >
> > environmental extremes will be less intense, but I get the
> > idea. Not
> > exactly a perfect noise free (visual, RF or otherwise)
> > area! :)
> >
> > > RF to work would be too complex, I would stick to
> > basics and use
> > > reflective tape (like from home depot),
>
>
>
>
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