The chiller can be built very inexpensively (major cost is the sacrifice of a largish cooler)
I built one of these for my high school theater. I used a cheaper ($3 - $5) plain Styrofoam cooler. It won't hold up as long as the nice plastic/Styrofoam cooler in the article, but works just as well for the yearly Halloween party.
This technology cannot currently triangulate a war{driv,chalk,walk}er.
I'm a researcher at Carnegie Mellon University who has been implementing this same system for the last two years.
This type of system relies on the client (pda/laptop) to gather the raw information for triangulation and send it to the server.
No accesspoint (that I'm aware of) is capable of gathering the information needed for triangulation.
Details:
An accesspoint only knows the signal strength between itself and its connected users.
Triangulation requires the signal strength between the client (pda/laptop) and at least three nearby accesspoints for 2d triangulation.
Current accesspoints do not record or calculate information for clients that are not currently connected to themselves.
It would be possible after modifying the firmware on the accesspoints. The manufactures have been extremely reluctant to give this information out (even under NDA.)
The most accurate information that could be gathered about war{driv,chalk,walk}ers is which accesspoint they are connected to.
If they reduce prices, it's likely that sales will increase. (still ~$18 at a record store & ~$12 at the electronic/appliance chains (Best Buy, Circuit City,...)).
Now if they wait until the the p2p-bills are pushed through, they're open to say the anti-p2p bills increased sales.
Slashdot Mirror
"Dogs are People Too!"
- Radar O'Reilly, M*A*S*H
The chiller can be built very inexpensively (major cost is the sacrifice of a largish cooler)
I built one of these for my high school theater. I used a cheaper ($3 - $5) plain Styrofoam cooler. It won't hold up as long as the nice plastic/Styrofoam cooler in the article, but works just as well for the yearly Halloween party.
This technology cannot currently triangulate a war{driv,chalk,walk}er.
I'm a researcher at Carnegie Mellon University who has been implementing this same system for the last two years.
This type of system relies on the client (pda/laptop) to gather the raw information for triangulation and send it to the server.
No accesspoint (that I'm aware of) is capable of gathering the information needed for triangulation.
Details:
An accesspoint only knows the signal strength between itself and its connected users.
Triangulation requires the signal strength between the client (pda/laptop) and at least three nearby accesspoints for 2d triangulation.
Current accesspoints do not record or calculate information for clients that are not currently connected to themselves.
It would be possible after modifying the firmware on the accesspoints. The manufactures have been extremely reluctant to give this information out (even under NDA.)
The most accurate information that could be gathered about war{driv,chalk,walk}ers is which accesspoint they are connected to.
Joshua Tree
If they reduce prices, it's likely that sales will increase. (still ~$18 at a record store & ~$12 at the electronic/appliance chains (Best Buy, Circuit City, ...)).
Now if they wait until the the p2p-bills are pushed through, they're open to say the anti-p2p bills increased sales.