if it is possible to identify thousands of GPS modules and monitor them,
then tracking ships is much easier than that.... :)
YOurs SaRIn....


On Fri, Jul 2, 2010 at 9:18 PM, Alex Harford <harford@gmail.com> wrote:

> On Thu, Jul 1, 2010 at 7:40 AM, alan smith <micro_eng2@yahoo.com> wrote:
> > Curious if anyone knows for ocean container tracking, obviously they use
> a GPS module to get the location, but for transmitting data back to the
> "home" monitoring station, I would assume that a single satellite
> transmitter collects data via wifi or some other network from each GPS unit?
>  I can't imagine any other way of it working.  Anyone have knowledge on
> this?
>
> William Gibson may be able to answer that for you.  One of his newer
> books involves this stuff:
> http://www.williamgibsonbooks.com/books/spook.asp
>
> :)
>
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