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1) There are invisible fence products that buzzes/zaps ol' Fido if he gets too close to it
2) GPS systems have pretty good accuracy these days
Combine the two into a collar-based system! Use a web-based mapping tool to set the route (clicking waypoints on a Google-Maps-like interface), download
the route to the collar, and set Fido free*!
* Freedom may only be an illusion.
for instance
GPS_20dog_20collar
[theircompetitor, Nov 28 2012]
Dog Nav
Dog_20Nav
"It could get instructions in the form of [...] sounds," says [scad mientist] [lurch, Nov 28 2012]
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Annotation:
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Since the only clue the dog will have about where it's supposed to go is the zaps, you'll soon have a very pissed-off dog out wandering around. |
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It is good enough, depending on where and how you use it. |
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Might be good on a farm for example, but not in a small yard. |
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[lurch] The dog doesn't need to get zapped all the time. It could get instructions in the form of low volume non-annoying sounds from the collar. If it doesn't follow the instructions, the collar could emit an annoying warning sound. If the dog still keeps going in the wrong direction, it gets zapped. |
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I have to agree with all of [21 Quest]'s objections. |
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I do like the concept though, so will remain neutral. |
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A single GPS receiver will be able to place itself
within about a 3m circle. Which will mean that
Fido may indeed wander into traffic or a garden.
However, if we make the pooch wear a large
triangular structure on his back... say 1.5m per
side. Then we can place a receiver at each point.
Now, we will have 3 points, with 3 corresponding
circles of probable-pooch-location. What we DO
know however is their relative positions, a
reasonable quality microcontroller should be able
to
eliminate all the areas where Fido cannot be,
giving a resolution of about 1m. Which is good
enough I think. There, done. |
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this idea in multiple variations has been here before |
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clean up's easy... just take the dog out for a walk
before he goes for a walk. And the 1.5m triangle
should keep people out of range of the sharp parts. |
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This wouldn't work with moles. |
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Actually, I don't think having 3 GPS recievers 1.5m apart will help very much. Most of the error comes from things like atmospheric variation that will affect all three receivers equally. Using differencial GPS with receivers in fixed locations that broadcast correction data can apparently get as good as 10cm accuracy. I found one site listing sub-meter accuracy for agricultural purposes as low as $1595, maybe a little more than you want to invest in your dog walker, but the price might drop if it found a high-volume market. |
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