[OLPC Networking] [Server-devel] RSSI value questions
wad at laptop.org
Sun Apr 6 22:37:08 EDT 2008
On Apr 6, 2008, at 7:27 PM, Ryan Crawford Comeaux wrote:
> Michael -
> Do you think the patent you're referring to would be a significant
> roadblock in implementing this system using wifi signal strength
> measurements? The few patents that I've seen (though I haven't
> been actively searching) seem to be designed with a system that has
> a "plurality of receiving stations with known locations" in mind,
> which wouldn't affect things here, considering this would be a
> system with purely unknown locations.
> To everyone reading -
> I agree that the XS isn't necessary, though it would allow for more
> applications, security being one that was pointed out earlier.
> Also, by attaching a GPS antenna to the server, an approximate GPS
> location could be assigned to nodes within the network.
Determining the location of fixed access points in a school can be
(e.g. by a deployment team). Precisely because of it's static
server role, it
provides fixed position information for very cheap. If GPS is
should be attached to a mobile node (a laptop), not the server!
> I think my initial question regarding whether or not the hardware
> is currently capable of implementing this system overall is a
> definitive "Yes," so I should be completing my proposal this
> evening. I'll post it to the three mailing lists we've been having
> this discussion on. Please feel free to rip it to shreds, provide
> constructive criticism, or wish me luck as you see fit :)
> - Crawford
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