Subject:
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Re: Household Positioning System Re: DGPS
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 10 May 2000 20:38:19 GMT
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Viewed:
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913 times
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Cool idea. Do you have it working? Or do you have a schematic that is
somewhat working? If so, I want to test out how accurate it will be. It
will be fun to use the LED as landmarks in the building.
--
Ray
<handyboard@media.mit.edu> wrote in message
news:27.554c332.2649cc50@aol.com...
> In a message dated 05/08/2000 6:25:33 PM Central Daylight Time,
> willb@selway.umt.edu writes:
>
> > Forget global. We need to devise HPS -- Household Positioning System!
>
>
> How about a beacon system. Each room can have 3 or so beacons high on
> the wall. Each beacon flashes at 38Khz and each beacon modulates this • 38KHz
> with its own personal code. The top layer of your robot would have 3 or 4
> directional sensors with precision angular encoders mounted on them. Then
> take the angles measured from each sensor and the code number for that
> sensor. Use the code number to look up the beacon location from ROM. Use
> the angles measured and the known position of the beacons to deduce the
> robots location.
> If you are reluctant to go attaching LEDs to the walls of your house, • you
> could build a box containing several IR Lasers. Modulate the lasers the • same
> as you would for LED beacons. Shine the lasers at various points on the
> walls (where the beacons should be) and the scattered laser spot will be • your
> beacon source.
>
> Just a thought,
> Pherd
> Currently in Pensacola FL soon Hartford CT
>
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Message is in Reply To:
 | | Household Positioning System Re: DGPS
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| (...) How about a beacon system. Each room can have 3 or so beacons high on the wall. Each beacon flashes at 38Khz and each beacon modulates this 38KHz with its own personal code. The top layer of your robot would have 3 or 4 directional sensors (...) (25 years ago, 9-May-00, to lugnet.robotics.handyboard)
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