bluetooth proximity

W. B. Kranendonk wankelwankel at
Wed Jun 18 13:13:55 CEST 2008

--- On Mon, 6/16/08, Tilman Baumann <tilman at> wrote:
> AVee wrote:
> >>  (...) There are a lot of reasons
> >> why this is not feasible. Sorry. 
> > 
> > I tend to agree, however, things might change if you
> add gps. You'd might just (...) That leaves only the
> 'exact measurement' to be 
> > solved.
> > 
> > It might work, but the precision will probably still
> be far to low to be 
> > useable for anything.

> (absolute position...) But the 
> relative position should be extremely high. (As high as
> DGPS can get)
> At least in theory.

Thanks for thinking along.

What I was thinking of, in a game setting, to use the phone as some sort of hack & slash device. Given my opponent and me are withing reasonable proximity, she with -say- a spear-device, me with a sword or so. She could try stabbing me, while I parry. The devices have to calculate the hit ratio.

Would a sound-code offer a possible solution? Could we measure some doppler effect with the built in microphone?

And, on a side note... How impact proof will the phone be, might she try throwing her spear? :-P


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